Mold Assist – Ottawa’s Mold Inspection, Testing & Removal Experts
Mold Assist is a premier mold remediation company in Ottawa dedicated to helping homeowners and businesses recover from mold-related emergencies with speed, expertise, and care. Specializing in mold remediation, emergency mold cleanup, and basement mold removal in Ottawa, we provide comprehensive solutions to eliminate mold, prevent recurrence, and restore properties to their pre-loss condition. Our certified technicians are available 24/7, equipped with state-of-the-art technology, including HEPA vacuums, air scrubbers, and moisture detection tools to ensure thorough mold removal and structural drying. Based in Ottawa, Mold Assist combines years of industry experience with a customer-first approach, offering tailored remediation plans to address leaks, floods, high humidity, or ventilation issues. We prioritize rapid response to minimize disruption, protect your property, and reduce health risks, all while delivering exceptional service to ensure peace of mind.
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Whether you’ve discovered visible mold, experienced recent water damage, noticed musty odours, or simply want peace of mind, Mold Assist is your trusted partner for professional mold inspections, testing, and remediation throughout Ottawa and the surrounding communities.
Professional Mold Inspection, Testing & Removal Services in Ottawa
Mold Assist provides professional mold inspections, mold testing, mold removal, and mold remediation services for homeowners and businesses throughout Ottawa and the surrounding communities. Whether you’ve discovered visible mold, experienced recent water damage, noticed musty odours, or simply want peace of mind, our certified technicians can identify the source of the problem and recommend the most effective solution.
Using advanced moisture detection equipment, thermal imaging, HEPA filtration, and industry-approved remediation techniques, we locate hidden moisture, assess contamination, and safely remove mold from homes and commercial properties. From attic mold and basement mold to crawl spaces, bathrooms, kitchens, and areas affected by flooding or plumbing leaks, we provide complete solutions that restore a healthy indoor environment while helping prevent future mold growth.
View All Mold Services
Suspect mold in your home or business? Our comprehensive mold inspections in Ottawa include a detailed visual assessment, moisture mapping, humidity measurements, and thermal imaging where appropriate. We identify the source of moisture, determine the extent of contamination, and provide clear recommendations for remediation.
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Professional mold testing in Ottawa helps confirm the presence of airborne or surface mold when contamination is hidden or indoor air quality is a concern. We offer air sampling, surface sampling, laboratory analysis, and detailed reports to help homeowners, businesses, and property managers make informed decisions.
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Our IICRC-certified technicians provide professional mold removal and remediation throughout Ottawa using industry-approved containment, HEPA air filtration, antimicrobial treatments, and controlled demolition where necessary. We remove contaminated materials, eliminate mold safely, and address the moisture source to help prevent future growth.
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Attic mold is often caused by poor ventilation, roof leaks, or excessive humidity. Our Ottawa attic mold removal specialists safely remove mold from roof sheathing and structural framing while identifying and correcting the underlying moisture problem to help prevent recurrence.
Read MoreMore Services from Mold Assist in Ajax
In addition to emergency mold containment and cleanup, Mold Assist offers a full range of mold remediation services in Ajax and home repair services to restore your property completely. Our team handles everything from carpet and upholstery cleaning, drywall replacement, and insulation removal to sealing moisture sources, ventilation improvements, and comprehensive mold remediation. We also provide ceiling repairs, painting, and odor removal to bring your home back to a clean, healthy, and livable condition. Whether you’re recovering from a small mold spot or a major basement infestation, Mold Assist delivers complete, end-to-end remediation services designed to protect your investment and ensure long-term health and structural integrity.
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Mold Assist provides expert mold inspection services exclusively for residential homes in Ajax, ensuring thorough and accurate detection of hidden infestations before they escalate into major health hazards. Our IICRC-certified technicians utilize advanced tools like thermal imaging cameras, air quality samplers, and moisture meters to pinpoint mold sources from leaks, condensation, or poor ventilation, delivering a comprehensive report with clear recommendations for remediation. From attic discoveries to basement concerns, we respond promptly to your call for a detailed evaluation, empowering homeowners with the knowledge to protect their families and property. With 24/7 availability, Mold Assist is the trusted choice for reliable, professional, and precise mold inspection solutions in the GTA.
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Mold Assist provides expert mold testing services exclusively for residential homes in Ajax, ensuring precise and reliable detection of airborne spores and hidden contaminants before they compromise your health and property. Our IICRC-certified technicians employ advanced methods like air sampling kits, swab tests, and tape lifts, analyzed in accredited labs to identify mold species, concentrations, and sources from leaks, ventilation issues, or humidity spikes. From basement evaluations to whole-home assessments, we respond promptly to your inquiry for detailed lab reports and actionable insights, empowering homeowners to make informed decisions on remediation. With 24/7 availability, Mold Assist is the trusted choice for reliable, professional, and accurate mold testing solutions in the GTA.
Read MoreHow Mold Assist Helps Ottawa Property Owners
Ottawa homeowners face unique moisture challenges throughout the year. Heavy snowfall, spring thaw, ice dams, foundation seepage, plumbing leaks and elevated indoor humidity can all contribute to mold growth. At Mold Assist, we help homeowners, landlords, property managers and businesses identify the source of moisture, remove existing mold safely and restore healthy indoor environments.
Whether you require a professional mold inspection, laboratory testing or complete mold remediation, our team follows industry-recognized procedures using HEPA filtration, negative air containment, moisture mapping and antimicrobial treatments. From your first phone call through project completion, we focus on identifying the cause of the problem—not simply removing the visible mold.
Contact Mold Assist Ottawa
Think you may have mold?
Call our Ottawa team or submit your information online. We’ll discuss your concerns, ask about the history of moisture, leaks or flooding, and recommend the most appropriate next step.
Professional Assessment
Our technicians perform a detailed visual inspection, moisture assessment and thermal imaging where appropriate. If required, we can also recommend laboratory air or surface testing to better understand the extent of contamination.
Inspection, Testing or Remediation
Depending on your situation, we can provide:
• Mold Inspection
• Mold Testing
• Air Quality Testing
• Mold Removal
• Attic Mold Removal
• Basement Mold Remediation
• Commercial Mold Remediation
Mold Assist Do's & Don'ts
Because we have assisted so many times.
Our Mold Removal & Remediation Process
At Mold Assist, our expert mold removal team follows a proven, industry-standard mold remediation process to safely eliminate mold infestations, restore healthy indoor air quality, and prevent future growth in homes and businesses across the GTA. Whether you’re dealing with basement mold, attic infestations, or hidden crawl space issues from leaks, high humidity, or water damage, our IICRC-certified technicians use advanced tools, containment systems, and eco-friendly methods to ensure thorough, efficient results. This comprehensive mold remediation approach minimizes health risks, protects your property’s structure, and gets you back to a safe, mold-free environment fast—because when it comes to mold removal, every step counts for long-term peace of mind.
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Step 1: Inspection and Assessment
Every mold removal project starts with a thorough inspection and assessment. Our team deploys moisture meters, thermal imaging cameras, and air sampling tests to detect visible and hidden mold growth, identify moisture sources like leaks or poor ventilation, and evaluate affected materials. We then develop a customized mold remediation plan, detailing the scope, safety protocols, timelines, and costs—empowering you with transparent insights before we begin.
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Step 2: Containment and Air Filtration
Preventing spore spread is key in any mold remediation process, so we establish secure containment using plastic sheeting barriers and negative air pressure systems. Industrial-grade HEPA air scrubbers and filters run continuously to capture airborne particles, keeping the rest of your home or business safe and isolated from contaminants during the entire cleanup phase.
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Step 3: Mold Removal and Disposal
Our certified specialists tackle mold removal head-on with EPA-approved antimicrobial and antifungal solutions to disinfect surfaces. Non-porous items are thoroughly cleaned, while porous materials, such as drywall, carpet, or insulation that harbour deep infestations, are carefully removed and disposed of. All waste is sealed in biohazard bags and transported in compliance with Ontario’s environmental safety standards, ensuring no cross-contamination occurs.
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Step 4: Drying and Dehumidification
Moisture is mould’s best friend, so after removal, we focus on complete drying to prevent recurrence in your mould remediation project. High-powered industrial air movers and dehumidifiers extract lingering humidity, with ongoing moisture readings to verify safe levels—guaranteeing a dry, stable environment that protects against future mold growth in basements, attics, or crawl spaces.
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Step 5: Final Testing and Prevention
To wrap up your mold remediation service, we conduct a rigorous post-remediation verification with air quality testing and visual inspections, issuing a clearance certificate for your peace of mind. We also equip you with tailored prevention strategies—like humidity control, enhanced ventilation, and routine mold inspections—to safeguard your Toronto home or business from future infestations long-term.
Learn MoreSome of the Products & Equipments We Use for Mold Remediation
Mold Assist provides expert mold remediation and removal services to homeowners throughout Toronto and the GTA. Whether caused by leaks, high humidity, poor ventilation, or water damage, mold growth can quickly lead to health risks, structural damage, and compromised air quality if not addressed immediately. To tackle these issues effectively, here are some of the products and equipment we use for mold remediation:
Explore Products & EquipmentsWhy Choose Mold Assist
Unmatched Speed and Care for Your Home
Expert Mold Remediation
When every second counts, Mold Assist delivers. Our certified remediation specialists are trained to act fast and restore homes efficiently after leaks, high humidity, or water damage. We combine cutting-edge technology with proven methods to contain spores, remove contaminants, and sanitize affected areas—bringing your property back to pre-mold condition with care and precision.
24/7 Rapid Emergency Response
Mold doesn’t follow a schedule, and neither do we. Whether it’s the middle of the night or a holiday, our team is ready to respond across the GTA within the hour. We minimize health risks, contain the spread, and kickstart the recovery process without delay—protecting your home and peace of mind.
Full-Service Remediation Capacity
From containment to structural repairs, we handle every aspect of your remediation. No outsourcing, no delays—just streamlined, start-to-finish service. With industrial-grade HEPA vacuums, dehumidifiers, and moisture detection tools, we tackle jobs of all sizes for homeowners and property managers alike.
Transparent Pricing
No guesswork. No inflated quotes. Our pricing is competitive, fair, and clear—so you can focus on recovery, not paperwork.
Why Ottawa Homeowners Choose Mold Assist
Ottawa homeowners trust Mold Assist because we focus on more than simply removing visible mold—we identify and address the underlying moisture problem. Whether mold is caused by roof leaks, foundation seepage, plumbing failures, condensation, or flooding, our experienced technicians provide practical recommendations and long-term solutions designed to help reduce the risk of future growth.
We follow IICRC industry standards and use professional equipment including HEPA air filtration, negative air containment, thermal imaging, moisture mapping, and advanced drying equipment to ensure every project is completed safely and professionally.
From the initial inspection through remediation and final recommendations, our goal is to provide honest advice, quality workmanship, and exceptional customer service for every homeowner, property manager, and business throughout Ottawa and the surrounding communities.

Why Choose Mold Assist?
✔ IICRC Industry Standards
✔ Certified & Experienced Technicians
✔ HEPA Air Filtration
✔ Thermal Imaging & Moisture Mapping
✔ Detailed Inspection Reports
✔ Insurance Documentation Assistance
✔ Safe Containment Procedures
✔ Honest Recommendations
✔ Residential & Commercial Services
✔ Emergency Response Available
IICRC Certified Mold Inspection & Remediation Company
Mold Assist is proudly IICRC certified, reflecting our dedication to maintaining the highest standards in mold removal and remediation across Ottawa and Surroundings. The Institute of Inspection, Cleaning and Restoration Certification (IICRC) ensures that our technicians are professionally trained in the latest mold inspection, containment, and remediation techniques, as well as indoor air quality safety protocols. Our certification means every project is handled with precision, compliance, and care — from initial mold assessment to complete restoration. We follow strict ethical, environmental, and technical guidelines to ensure that contaminated areas are properly cleaned, sanitized, and safe for reoccupation. When you choose Mold Assist, you’re trusting a certified team of remediation professionals committed to protecting your home and health. We combine science-based methods, advanced equipment, and years of field experience to deliver long-lasting results and peace of mind.
Residential and Commercial Mold Remediation
Mold Assist provides professional mold remediation services in Ottawa for residential homes, commercial buildings, offices, retail properties, and multi-unit residential complexes. Whether mold is caused by roof leaks, plumbing failures, flooding, foundation moisture, condensation, or poor ventilation, our IICRC-certified technicians use advanced HEPA filtration, antimicrobial treatments, moisture detection technology, and industry-approved containment procedures to safely remove mold at its source. From small localized contamination to large commercial remediation projects, we restore healthy indoor environments while helping prevent future mold growth.
Mold Assist provides professional basement mold removal in Ottawa for homes affected by foundation leaks, flooding, groundwater seepage, humidity, or plumbing failures. Our IICRC-certified technicians use HEPA filtration, antimicrobial treatments, moisture detection equipment, and professional containment systems to safely remove mold while preventing cross-contamination. We identify and address the underlying moisture source to help reduce future mold growth and restore a healthier indoor environment.
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Mold Assist specializes in cold room mold removal in Ottawa, eliminating mold caused by condensation, poor ventilation, humidity, and foundation moisture. Using HEPA vacuums, antimicrobial treatments, and professional containment procedures, our certified technicians safely remove contamination and restore your cold room to a clean, dry, and healthy condition while helping prevent future mold growth.
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Our crawl space mold removal services in Ottawa target mold caused by excess moisture, groundwater intrusion, inadequate ventilation, and high humidity. Mold Assist uses industry-approved remediation procedures, HEPA air filtration, antimicrobial treatments, and moisture control strategies to eliminate mold while protecting your home’s structure and improving indoor air quality.
Read MoreFrequently Asked Questions
Q 1. What is included in a mold inspection?
A professional mold inspection includes a comprehensive visual assessment of the property, moisture measurements, humidity evaluation, and thermal imaging where appropriate to identify hidden moisture. Our technicians investigate the source of the moisture, identify visible signs of mold growth, and assess the extent of the affected areas. After the inspection, you’ll receive clear recommendations outlining whether mold removal, mold testing, or moisture corrections are required.
Q 2. Do I need mold testing?
Not every mold problem requires laboratory testing. If visible mold is present, professional remediation is usually recommended without testing. Mold testing is most beneficial when the source of a problem is unclear, hidden mold is suspected, indoor air quality concerns exist, or documentation is required for insurance, real estate transactions, employers, or medical professionals. During your inspection, we’ll advise whether testing is necessary for your specific situation.
Q 3. When should mold be professionally removed?
Mold should be professionally removed whenever it covers a significant area, has spread into drywall, insulation, ceilings, attics, crawl spaces, or HVAC systems, or when it results from ongoing moisture or water damage. Professional remediation is also recommended if occupants experience allergies, asthma symptoms, or other respiratory concerns. Removing the mold without correcting the underlying moisture source often leads to recurring growth.
Q 4. How much does mold remediation cost?
The cost of mold remediation depends on the size of the affected area, the type of materials involved, the extent of contamination, and whether hidden mold is discovered during demolition. Small localized projects may cost a few hundred dollars, while larger structural remediation projects can cost several thousand dollars. After completing a professional inspection, we provide a detailed scope of work and transparent pricing based on the actual conditions found.
Q 5. Is attic mold dangerous?
Yes. Attic mold can damage roof sheathing, reduce indoor air quality, and indicate ventilation or moisture problems within the home. Common causes include inadequate attic ventilation, roof leaks, excessive humidity, or improperly vented bathroom exhaust fans. If left untreated, attic mold can continue spreading and lead to costly structural repairs. Early inspection and remediation can help prevent further damage.
Q 6. Can mold return after remediation?
Properly performed mold remediation removes existing contamination, but mold can return if the underlying moisture problem is not corrected. Roof leaks, plumbing leaks, condensation, flooding, or poor ventilation can all create conditions for new mold growth. Our remediation process focuses on removing affected materials while identifying the source of moisture so homeowners can take the necessary steps to help prevent future growth.
Q 7. Do you remove mold after water damage?
Yes. Mold commonly begins developing within 24 to 48 hours after water damage if affected materials are not properly dried. We provide mold inspections, moisture investigations, structural drying recommendations, and professional mold remediation for properties affected by floods, plumbing leaks, roof leaks, sewage backups, and other sources of water intrusion.
Q 8. How long does mold remediation take?
Most residential mold remediation projects are completed within one to three days, depending on the size of the affected area and the amount of demolition required. Larger projects involving multiple rooms, attics, or extensive water damage may take longer. Following the initial inspection, we provide an estimated project timeline based on the scope of work and the conditions observed.
Q 9. Is black mold dangerous?
Not all black-colored mold is the same species, and mold cannot be identified by appearance alone. Regardless of its colour, mold can affect indoor air quality and may trigger allergies, asthma, and respiratory irritation in sensitive individuals. A professional inspection can determine the extent of contamination and whether remediation is recommended.
Q 10. What causes mold to grow in a home?
Mold requires moisture to grow. Common causes include roof leaks, plumbing leaks, basement flooding, high indoor humidity, condensation, poor ventilation, foundation seepage, and water damage that has not been properly dried. Identifying and correcting the moisture source is essential to preventing mold from returning.
Common Areas Where Mold Develops
Mold in your home is more than a cosmetic problem—a health and safety concern requiring professional attention. At Mold Assist, we specialize in mold removal and remediation throughout Ottawa, targeting common problem areas such as basements, bedrooms, cold rooms, kitchens, and bathrooms.
Our IICRC-certified technicians begin with a detailed inspection to identify visible and hidden mold. Using advanced moisture detection tools and HEPA filtration systems, we safely contain, remove, and clean contaminated areas without spreading spores. Each surface is disinfected with professional-grade, eco-friendly solutions to restore a healthy environment.
Basements and cold rooms often develop mold due to excess humidity and poor airflow, while bathrooms and kitchens are prone to condensation and plumbing leaks.
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We eliminate the source of moisture, treat affected materials, and apply long-term prevention methods to stop mold from returning.
With Mold Assist, you can count on certified expertise, transparent service, and proven results. We restore your property safely, efficiently, and with complete respect for your home. When you need reliable mold removal in Ajax, trust the specialists who make your indoor air clean, dry, and healthy again.
Mold Inspection, Testing & Remediation Costs in Ottawa
At Mold Assist, we provide transparent pricing for mold removal, mold remediation, attic mold removal, mold inspection, and mold testing services across Ottawa and Surroundings. Whether it’s hidden mold from leaks, high humidity, or post-water damage growth, our pricing chart outlines typical service costs so you know what to expect. From initial assessment and containment to safe removal, sanitization, and restoration, every stage is explained clearly so homeowners can make informed decisions. We ensure accurate and consistent quotes. Along with detailed documentation, photos, and reports. With upfront estimates, no hidden fees, and expert on-site assessments, Mold Assist delivers fast, reliable service — and peace of mind when it matters most.
Basement Mold Remediation Hamilton | Hidden Mold Project
Commercial Mold Remediation Cambridge | Mold Assist
Office Mold Removal Scarborough | Sheppard Ave E
Balcony Door & Bedroom Mold Removal Oakville, ON – George Savage Ave
Mold Remediation Oakville | Laundry Room Mold Removal At Woodstock Trail
Richmond Hill Basement Mold Remediation | Cartier Crescent
Basement Mold Removal Ancaster – Yorkshire Dr
Professional Mold Services by Mold Assist Ottawa
Professional Mold Services by Mold Assist Ottawa
Whether you’re dealing with visible mold growth, musty odours, water damage, or concerns about indoor air quality, Mold Assist provides comprehensive mold services throughout Ottawa and surrounding communities. Our team offers professional mold inspections, moisture investigations, laboratory mold testing, complete mold remediation, attic mold removal, basement mold cleanup, and commercial mold services.
Using advanced moisture detection equipment, HEPA filtration systems, thermal imaging, and industry-recognized remediation procedures, we identify the source of moisture—not just the visible mold—to help prevent future problems. Whether your property has been affected by a roof leak, plumbing failure, foundation seepage, condensation, or flooding, our experienced technicians provide practical solutions tailored to your specific situation.
Explore our Ottawa mold services below to learn more about each service and determine which solution is right for your home or business.
Mold Inspection
If you suspect mold in your home or business, a professional mold inspection is the best place to start. Our technicians perform a comprehensive visual assessment, moisture investigation, humidity measurements, and thermal imaging where appropriate to identify the source and extent of the problem. Following the inspection, you’ll receive clear findings and practical recommendations for the next steps.
Mold Testing
When laboratory confirmation is required, Mold Assist offers professional mold testing services, including air sampling, surface sampling, and indoor air quality assessments. Mold testing can help identify the presence and type of mold, providing valuable information for homeowners, buyers, landlords, and insurance-related investigations.
Mold Removal & Remediation
Our certified technicians safely remove mold using controlled containment, HEPA filtration, negative air pressure, and industry-recognized remediation procedures. We remove contaminated materials, clean structural surfaces, and address the underlying moisture source to help reduce the risk of future mold growth.
Attic Mold Removal
Attic mold commonly develops due to poor ventilation, roof leaks, and condensation. We identify the source of moisture, safely remediate affected areas, and provide recommendations to improve attic ventilation and help prevent mold from returning.
Basement Mold Removal
Basements are particularly vulnerable to mold due to foundation seepage, flooding, elevated humidity, and plumbing leaks. Our team safely removes mold, addresses moisture issues, and helps restore healthy indoor conditions while minimizing the likelihood of future growth.
Bathroom Mold Removal
Persistent moisture, poor ventilation, and plumbing leaks often lead to mold growth in bathrooms. Mold Assist provides safe removal of mold from walls, ceilings, showers, and concealed spaces while identifying and addressing the underlying moisture source.
Crawl Space Mold Removal
Crawl spaces often experience elevated humidity and limited airflow, creating ideal conditions for mold growth. We inspect, remediate, and help improve moisture control to protect your home’s structural components and indoor air quality.
Commercial Mold Remediation
Mold Assist provides professional mold remediation services for commercial, industrial, and institutional properties throughout Ottawa. We work efficiently to minimize operational disruptions while following industry standards for containment, remediation, and documentation.
A Few Words From Our Clients
At Mold Assist, our clients’ experiences speak louder than words. Our review feed features real feedback from homeowners and property managers across Ajax and the GTA who trusted us with mold removal, mold remediation, and attic, basement, bathroom, and cold room mold cleanup. From fast response times to professional technicians and clear communication, these reviews reflect the dedication and expertise we bring to every project. We’re proud to share their stories so future customers can see the quality, care, and peace of mind Mold Assist provides when mold threatens their home or health.
Mold Assist Serves These Ontario Communities
Mold Assist proudly serves homeowners and businesses across Ontario with expert mold remediation, mold inspection, and mold prevention services. Our IICRC-certified team is available 24/7 to respond quickly when mold threatens your property—whether caused by water damage, high humidity, foundation moisture, or poor ventilation. We use advanced mold detection tools, industry-standard removal and remediation procedures, and professional air-quality restoration techniques to eliminate mold safely, prevent it from returning, and restore a cleaner and healthier indoor environment. With proven expertise, certified technicians, and a strong local presence across the GTA and Southern Ontario, Mold Assist remains a trusted choice for mold emergencies, offering fast response, reliable solutions, and peace of mind when it matters most.
- Ajax
- Ancaster
- Aurora
- Barrie
- Beeton
- Bolton
- Bond Head
- Bowmanville
- Bradford
- Brampton
- Brantford
- Brooklin
- Burlington
- Caledon
- Cambridge
- Carlisle
- Claremont
- Clarington
- Cookstown
- Dundas
- East Gwillimbury
- East York
- Erin
- Etobicoke
- Flamborough
- Georgetown
- Grimsby
- Guelph
- Hamilton
- Innisfil
- King City
- Kitchener
- Kleinburg
- Markham
- Milton
- Mississauga
- Mount Albert
- New Tecumseth
- Newcastle
- Newmarket
- Nobleton
- North York
- Oakville
- Orangeville
- Oshawa
- Pickering
- Puslinch
- Richmond Hill
- Scarborough
- Schomberg
- St. Catharines
- Stoney Creek
- Stouffville
- Thornhill
- Thornton
- Toronto
- Tottenham
- Uxbridge
- Vaughan
- Waterdown
- Waterloo
- Whitby
- Woodbridge
Concerned About Mold? We’re Here to Help.
Schedule a mold inspection, testing, or remediation consultation with one of our experienced specialists. We’re available 7 days a week throughout Ottawa and surrounding communities.
