Mold Removal, Inspection & Testing in Ottawa
A musty basement, a dark patch on the ceiling, air that never feels quite right: whatever brought you here, our Ottawa-based team gives you honest answers and a clear plan, fast.
We inspect, test and remediate mold (and the odours it leaves behind) in homes and businesses across the whole city, from Kanata to Orléans and downtown to the rural south.
- Free, no-obligation inspections
- Certified, insured local technicians
- Lab-backed testing and honest reports
- Same-week appointments across Ottawa
Book your free Ottawa inspection
No obligation. We call you back within one business hour.
Why Ottawa homes are prone to mold
Ottawa's climate works against your house all year: hard freezes, spring melt, humid summers and a long heating season that traps moisture indoors. Add the city's mix of century homes and fast-built suburbs, and mold gets plenty of chances to take hold.
- Freeze-thaw cycles that crack foundations and let meltwater seep into basements
- Spring snowmelt and heavy fall rains that overwhelm grading and drainage
- Humid summers that push indoor humidity past the level where mold thrives
- Ice damming on roofs that soaks attic insulation and sheathing
- Condensation on windows and cold exterior walls through the heating months
- Finished basements where past leaks were covered up rather than fixed
None of this means your home is in trouble. It means an honest look from a local specialist is worth it, especially if something already smells or looks off.
Book a free inspection
Every mold and air quality service, one local team
From the first look to final clearance, Ottawa Mold Solutions handles the whole job in-house: no subcontractors, no run-around.
Mold Inspection
A detailed visual inspection of your Ottawa home to locate mold growth, moisture intrusion and risk areas before they become bigger, costlier problems.
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Mold Testing
Surface and air sampling analyzed by accredited labs, so you know the type and concentration of mold present. Ideal for real estate deals and health concerns.
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Mold Removal
Safe, contained mold remediation using professional equipment and industry best practices, protecting your belongings and your indoor air.
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Air Quality Analysis
Professional air quality testing for Ottawa homes and workplaces: mold spores, allergens and other pollutants, with a clear picture of what you breathe.
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Odour Inspection
We pinpoint the source of stubborn odours caused by mold, bacteria, smoke, pets or past water damage, instead of just masking the smell.
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Odour Removal
Treatment plans that neutralize odours at the source, so your home smells clean again without perfumes or temporary cover-ups.
Learn moreServing every neighbourhood in Ottawa
Our technicians live and work here, so travel never slows down your appointment. Wherever you are in the city, we know the housing stock and its habits:
Kanata & Stittsville
Newer builds with finished basements, where hidden condensation behind insulation is the usual suspect.
Barrhaven & Nepean
Family homes from the 70s through the 2000s, prone to bathroom ventilation and window condensation issues.
Orléans & Gloucester
Split-levels and bungalows where attic ice damming and cold rooms do the quiet damage.
Centretown, The Glebe & Old Ottawa South
Century homes with stone foundations, original framing and decades of renovation layers to inspect carefully.
Westboro & Hintonburg
Renovated older homes, where fresh finishes sometimes seal old moisture problems inside the walls.
Vanier & Overbrook
Post-war housing with shallow basements and mixed-era additions that trap humidity.
Riverside South & Findlay Creek
Newer communities on former wetland soils, where grading and sump systems earn their keep.
Rural Ottawa: Manotick, Greely & Carp
Well-water homes, crawl spaces and outbuildings that call for a different inspection playbook.
Outside the city proper? We also serve surrounding communities like Russell, Embrun, Casselman, Rockland and Arnprior.
What Ottawa homeowners say
When it comes to mold and air quality, you don't just need a contractor, you need a calm, knowledgeable partner who puts your family's health first.
“They found hidden mold behind our basement drywall that two other companies completely missed. Professional, punctual, and thorough.”
“We needed lab testing before closing on our house sale. The samples were handled quickly and the written report made the whole transaction simple.”
“The remediation crew was meticulous. They sealed off the area, protected our furniture, and left the basement cleaner than they found it.”
“From booking to the final report, everything was clear and stress-free. The air quality results gave us real peace of mind.”
“A lingering smell in the spare room had us stumped for months. They pinpointed the source behind the wall on the very first visit.”
“Fast response after we noticed a musty smell. They traced it, removed it, and the odour is completely gone. Highly recommend.”
“Our youngest has asthma, so indoor air matters to us. Their testing was honest and reassuring, with no pressure to buy anything extra.”
“After the mold was removed they walked us through moisture control so it would not come back. A year later, still dry and clean.”
Ottawa mold questions, answered
Straight answers to what homeowners across the city ask us most, before they book anything.
Mold in Ottawa homes
Is mold really that common in Ottawa?
More than most people expect. Ottawa swings from -30 winters to humid +30 summers, and that constant freeze, melt and condensation cycle keeps building materials damp. We find mold in brand-new builds and century homes alike; what matters isn't the age of the house but whether moisture has a way in and no way out.
Where does mold usually grow in Ottawa houses?
The same few places account for most of what we find:
- Basements and cold rooms, especially finished ones
- Attics affected by ice damming or poor ventilation
- Bathrooms without adequate exhaust
- Around windows and on cold exterior walls
- Under flooring or behind baseboards after past leaks
If you're seeing spots or smelling mustiness somewhere else, that's still worth a look: unusual locations usually point to a hidden moisture source.
Does winter kill mold?
No. Cold slows mold down but doesn't kill it, and winter is actually condensation season inside Ottawa homes: warm indoor air meets cold surfaces and leaves moisture behind. That's why we inspect year-round, and why a musty smell in January deserves the same attention as one in June.
Booking and cost
Is the inspection really free?
Yes. A technician visits your home, inspects the areas that concern you, explains what they see in plain language, and tells you honestly whether anything needs to be done. There's no charge and no obligation; if the fix is something you can handle yourself, we'll say so.
How much does mold removal cost in Ottawa?
It depends on how far the mold has spread and what caused it, which is why we never quote blind. A small contained area is a very different job from a basement with a moisture problem. After the free inspection you get a written scope and price, and we won't recommend work your home doesn't need.
How fast can you get to my home?
We book same-week appointments across Ottawa, and we keep room for urgent situations like fresh water damage. Because the team is local, travel time never pushes your appointment back.
Do I need an inspection, testing, or removal?
Start with the free inspection; it tells you which one you actually need. If lab confirmation would help (for a real estate deal, a landlord dispute or a health concern), we'll suggest mold testing. If the problem is confirmed and significant, we'll walk you through what mold removal involves. You'll never be pushed toward more than the situation calls for.
Proudly Serving Ottawa and Surrounding Areas
Ottawa Mold Solutions provides mold, odour and air quality services throughout Ottawa and nearby communities, including but not limited to: Kanata, Stittsville, Nepean, Barrhaven, Orléans, Gloucester and selected surrounding rural areas.
Here are common signs Ottawa homeowners notice before calling us:
- Persistent musty or earthy smells, especially in the basement or bathroom
- Condensation on windows, or damp spots on walls and ceilings
- Peeling paint, bubbling drywall, or warped baseboards
- Visible black, green, or white spots on walls, ceilings, or around windows
- Allergy-like symptoms that get worse at home (coughing, sneezing, irritated eyes)
- Past water damage that was “dried out” but never professionally inspected
If any of this sounds familiar, it’s worth getting a professional opinion. Get clear answers, not guesses.
Book an inspectionReady for clear answers about your Ottawa home?
One visit from a local specialist and you'll know exactly what you're dealing with, what it would cost, and what happens next. Your free inspection gives you:
- A thorough look at the areas that worry you
- Plain-language findings, with photos and readings
- A written plan and honest pricing, only if work is actually needed
Prefer to talk it through first?
Tell us what you're seeing and smelling. We'll explain your options and what the process looks like. No obligation, no pressure.
Call (613) 902-0600