How much does commercial mold remediation cost in Canada?
Mold remediation is priced by the affected area and the containment level required. Small, contained jobs are predictable; large or hidden contamination behind walls, in HVAC, or tied to ongoing water intrusion escalates quickly because the source must be fixed too.
Typical price breakdown
General planning ranges for Canadian commercial work. Your actual price depends on scope, region, building condition, and access.
| Item | Typical range |
|---|---|
| Small contained area (< 30 sq ft) | $750 – $2,500 |
| Moderate area (30–100 sq ft) | $2,500 – $7,000 |
| Large / multi-room | $7,000 – $30,000+ |
| Third-party air/clearance testingPre- and post-remediation. | $400 – $1,200 / test |
| HVAC system remediation | $2,000 – $8,000+ |
| Source repair (leak/waterproofing)Quoted separately — must fix the cause. | varies |
What moves the price
Affected area & location
Surface mold on drywall is cheaper than contamination inside wall cavities, ceilings, or ductwork.
Containment level
Larger contaminated areas require negative-air containment, HEPA filtration, and PPE protocols that raise cost.
Underlying water source
Remediation fails unless the moisture source (leak, flashing, grading) is repaired — usually a separate scope.
Testing & clearance
Independent pre- and post-testing for documentation and tenant assurance adds cost but protects you legally.
Occupancy & disruption
Working in an occupied building with tenant notice and off-hours work increases labour.
How to get an accurate price
The numbers above are for budgeting. To get a real, scope-specific price, post your project as an RFP on PMRFP — describe the building, the work, and your region, and qualified mold remediation companies respond with their own pricing. Posting is free, and getting two or three competitive responses is the simplest way to know the true market rate.
Use the Mold Remediation template
We’ve already built the scope, requirements, and evaluation criteria for this kind of project. Customize in seconds and post — go from cost guide to live RFP without writing from scratch.
Questions
PMRFP is a vendor discovery and RFP visibility platform. We do not guarantee project availability, bid success, contract awards, property manager response, or revenue. Members are responsible for their own due diligence, qualifications, insurance, licensing, pricing, and agreements.
Budgeting commercial mold remediation? Get real numbers.
Post your project on PMRFP and qualified Canadian trades respond with real, scope-specific pricing. Free to post.