Think You Have Mould? Book a Paid Mould Inspection Within 24 Hours (Ottawa, Kingston & Eastern Ontario)
Black spots on the drywall, a musty basement smell, or symptoms that clear up when you leave the house? Book a paid mould inspection online and a PMII Certified Mold Remediator attends your Ottawa, Kingston or Eastern Ontario property within 24 hours with moisture mapping, a written scope and a real cost range.
There are black spots at the bottom of the basement drywall. The laundry room smells like wet earth no matter how much you air it out. Someone in the house is congested every morning and fine the moment they leave. You are not sure whether this is a $900 problem or a $9,000 problem — and every article you read either tells you to spray bleach or tries to sell you a $600 lab test.
Here is the simplest way forward: book a paid mould inspection and have a PMII Certified Mold Remediator at your property within 24 hours. Use the form on this page, describe what you are seeing and smelling, enter the address, pay securely online, and our dispatch team confirms your window.
If water is actively running or your basement is flooding right now, do not book — call (855) 3247-FLOOD for 24/7 emergency dispatch.
Why an inspection beats guessing
Visible mould is almost never the whole story. Growth follows moisture, and moisture travels inside wall cavities, under underpad, behind vanities and above ceiling tiles. What you can see is the part that reached a finished surface — the colonisation behind it is typically two to five times larger.
A proper inspection answers the four questions that decide your cost:
- Where is the moisture coming from? Foundation crack, failed sump pump, condensation, plumbing leak, ice damming, poor grading. Remediation that does not kill the source always fails.
- How much material is actually affected? Health Canada's guidance is scoped by area: under 10 sq ft, 10–100 sq ft, and over 100 sq ft each imply a different containment level.
- What has to come out versus what can be cleaned and dried? Drywall and insulation usually come out. Structural wood is normally cleaned, HEPA-vacuumed and treated in place.
- What containment does the job require? Poly containment, negative air with HEPA filtration, and a decontamination chamber are the difference between remediation and spreading spores through your HVAC.
What the paid mould inspection includes
- Attendance by a technician certified IICRC WRT / FSRT and PMII Certified Mold Remediator (CMR), NAMRI member
- Full moisture survey: pin and pinless meters, thermal imaging, ambient temperature and relative humidity readings
- Identification of the moisture source and the drying or repair required to stop it
- Mapping of the affected area with photo documentation of every location
- A written remediation scope with containment level, materials to be removed and clearance approach
- A real CAD cost range for the work, with an Xactimate-format breakdown on request
- Optional third-party air sampling and post-remediation verification quoted separately
- The inspection fee is credited toward the remediation if you proceed with us
Why speed matters with mould
Mould colonises wet organic material — drywall paper, underpad, framing, insulation — in 24 to 48 hours. Once colonised, the material is no longer dryable; it becomes a removal item. That is the single biggest cost lever on the project. A property inspected in the first week is a containment-and-dry job. The same property inspected two months later is a demolition job.
Ongoing exposure also matters. Health Canada treats any visible indoor mould as a health hazard to be removed regardless of species — respiratory irritation, coughing, wheezing, worsened asthma and allergic reactions are all documented. Species testing changes the invoice, not the plan.
What mould remediation costs in Eastern Ontario
| Scope | Typical range (CAD) |
|---|---|
| Small contained area (one wall, bathroom) | $1,500 – $4,000 |
| Partial basement, 200–400 sq ft, full containment | $3,500 – $8,000 |
| Full basement with drywall and insulation removal | $6,000 – $15,000+ |
| Crawlspace (restricted access) | $2,500 – $9,000 |
| Attic condensation mould | $3,000 – $10,000 |
| Third-party post-remediation air clearance | $450 – $1,200 |
Want a number before you book anything? Our free mould remediation estimator and free water damage estimator give an instant range with no payment and no contact details. The paid inspection is what converts that range into a verified, defensible scope.
Insurance, and what if you are not insured
We work for you, not for your insurance company. You choose your remediation contractor — you are not required to use the carrier's preferred vendor. We provide the full file: photos, moisture logs, a defensible written scope and an Xactimate-format breakdown on request.
Gradual moisture and long-term humidity are often excluded from policies. That is not a dead end: we scope tightly, phase the work, and financing is available through our financial partners, including for clients with low credit scores. See restoration financing options and remediation without insurance.
Where we inspect within 24 hours
Ottawa (Nepean, Barrhaven, Kanata, Stittsville, Orleans, Gloucester, Vanier, Westboro), Gatineau, Carleton Place, Smiths Falls, Perth, Kingston, Gananoque, Brockville, Napanee, Belleville, Trenton, Quinte West, Port Hope, Bowmanville and Oshawa.
Related reading and services
- Mould remediation services
- Water damage restoration
- Ottawa basement restoration
- Book a paid water inspection within 24 hours
- Mould vs mildew: how to tell the difference
- Service areas and response times
Ready? Scroll back to the booking form, tell us what you are seeing and smelling, and pay to lock in your mould inspection within 24 hours. Or call (855) 3247-FLOOD and a coordinator will book it with you.
Frequently asked questions
- How do I know if I really have mould?
- Visible black, green, grey or white patches, a persistent musty or earthy smell, bubbling paint, soft drywall near the floor, or symptoms that improve when you leave the house are all indicators. A paid mould inspection confirms it with moisture meters and thermal imaging, including growth hidden inside wall cavities.
- How fast can you inspect my property for mould?
- A PMII Certified Mold Remediator attends your property within 24 hours of your paid booking across Ottawa, Gatineau, Kingston, Brockville, Belleville, Napanee, Gananoque, Port Hope, Bowmanville and Oshawa.
- How do I pay for the mould inspection?
- Complete the booking form on this post — description, property address, phone and email — and you are taken to a secure Stripe checkout. Your receipt is emailed automatically to the address you enter.
- What does the paid mould inspection include?
- An IICRC WRT / FSRT and PMII CMR certified technician, a full moisture survey with pin, pinless and thermal imaging tools, identification of the moisture source, photo documentation, a written remediation scope with containment level, and a real CAD cost range with an Xactimate-format breakdown on request.
- Is the mould inspection fee credited if I hire you?
- Yes. If you proceed with the remediation work with 24/7 Remedial Services, the inspection fee is credited toward the project.
- Do I need air sampling or lab testing?
- Usually not to start. Health Canada advises removing any visible indoor mould and correcting the moisture source regardless of species, so testing rarely changes the work plan. We quote optional third-party air sampling and post-remediation clearance when a landlord, buyer, insurer or occupant health issue requires documented verification.
- What does mould remediation cost in Eastern Ontario?
- A small contained area runs roughly $1,500–$4,000 CAD, a partial basement with full containment $3,500–$8,000, and a full basement with drywall and insulation removal $6,000–$15,000+. Our free mould estimator gives an instant range before you book anything.
- Do you deal with my insurance company?
- We work for you, not for your insurance company. We provide full claim support — moisture logs, photos, a defensible written scope and an Xactimate-format breakdown on request — and you choose your own remediation contractor.
- What if mould is not covered by my policy?
- Gradual moisture and humidity are commonly excluded. We scope tightly, phase the work, and financing is available through our financial partners, including for clients with low credit scores. Ask your coordinator during the inspection.
Instant cost estimate
Preliminary CAD range in under a minute. A free on-site inspection confirms the scope, and financing is available while your claim is reviewed.
Estimated mitigation range
$3,978 – $5,850
Mitigation and remediation only — we do not quote or perform reconstruction.
Free instant cost estimators
Get a preliminary CAD range in under a minute — no obligation, no payment details. The on-site visual inspection that confirms it is free, and financing is available if paying up front is a concern.
About this guide & the team behind it
This article was written and reviewed by the PMII-certified restoration technicians at 24/7 Remedial Services, a Kingston, Ontario property-restoration company with more than two decades of combined field and construction experience across Eastern Ontario. We respond 24 hours a day, 7 days a week, 365 days a year to water, fire, smoke, mould, storm, and impact losses across Kingston, Napanee, Brockville, Gananoque, Picton, Belleville, Smiths Falls, Perth, Prescott, Carleton Place, and the surrounding Frontenac, Lennox & Addington, Leeds & Grenville, Lanark, Hastings, and Prince Edward county townships.
Every guide on this blog is grounded in the same industry standards Canadian insurance carriers expect on a properly documented claim file: industry-standard water damage practices for water damage restoration, industry-standard mould remediation practices for professional mould remediation, and industry-standard fire & smoke restoration practices for fire and smoke restoration. Where the article references a Category 1/2/3 water classification, a Class 1–4 drying environment, a Condition 1/2/3 indoor mould assessment, or a specific itemized line item, that terminology is used deliberately — it's the same vocabulary your adjuster uses and the same vocabulary that holds up in subrogation.
If you are dealing with an active loss as you read this, please do not wait. Most Kingston addresses see one of our restoration crews on-site within 60 minutes of dispatch — including overnight, on weekends, and during severe-weather events. Surrounding Eastern Ontario communities follow as quickly as travel allows. The cost of waiting on mitigation is almost always higher than the cost of acting immediately.
How our crews work
- › 24/7/365 dispatch from a Kingston base
- › Free written itemized insurance scope before any work begins
- › Daily timestamped moisture logs & photo documentation
- › Full insurance claim support with every major Canadian insurer
- › Mitigation through reconstruction under one project lead
What we restore
- › Water damage — burst pipes, floods, sewage backups
- › Fire & smoke — soot removal, deodourization, rebuild
- › Mould — industry-standard mould remediation practices containment & clearance
- › Storm & impact — emergency board-up and tarping
- › Commercial, multi-unit, institutional & residential
Need restoration help right now?
24/7 Remedial Services dispatches PMII-certified crews around the clock across Kingston and Eastern Ontario. Whether the damage is water, fire, smoke, mould, or storm-related, calling early in the first 24 hours dramatically reduces the eventual scope of work, the disruption to your property, and the size of your insurance claim. Our team handles the documentation, the insurer coordination, and the rebuild — so you only deal with one accountable contact from the first call to the final paint touch-up.