Mold Removal in London, ON

At Masters' Guild, we provide expert mold removal services to ensure your home or business remains safe and healthy. Our experienced team specializes in mold remediation, using effective techniques and eco-friendly products to eliminate mold at its source and prevent future growth. Trust us to protect your property and enhance your indoor air quality.

Mold Removal in London, ON: Small surface area (under 10 sq ft) typically runs $550–$1,650 CAD in 2026; the other common jobs below range from $550 to $32,700, depending mostly on affected area and hidden spread. Post your job free on Masters' Guild to get offers from ID-verified local pros; payment is held until the work is done.

What mold removal costs in London, ON (2026)

Typical mold removal prices in London, ON (CAD, 2026) — low to high per job

Job	Typical range (CAD)	Unit
Small surface area (under 10 sq ft)	$550–$1,650	per job
Bathroom or single room	$1,100–$3,800	per job
Basement remediation	$1,650–$5,450	per job
Attic remediation	$2,200–$6,550	per job
Whole-home or post-flood remediation	$10,900–$32,700	per job

Estimates: typical Canadian ranges adjusted for London's regional price level (about 9% above the national average; estimate (AreaVibes 2025 cost-of-living index)). Get two or three quotes for your exact job.

Our Mold Removal Expertise in London, ON

Comprehensive Mold Remediation

Our mold remediation services address mold at its root cause, ensuring thorough removal and long-term prevention. We handle mold problems of all sizes, whether it’s a small patch or widespread contamination.

Black Mold Removal

Black mold poses significant health risks, and our team is equipped to safely and effectively remove it. With professional black mold removal services, we help you regain a safe living or working environment.

Inspection and Assessment

We provide detailed inspections to identify mold growth and its underlying causes. Our mold specialists offer tailored solutions to address your unique situation and prevent future mold issues.

Affordable Mold Removal Solutions

Concerned about costs? We provide clear, upfront estimates for mold remediation costs, ensuring you receive high-quality service within your budget.

Why Choose Masters' Guild for Mold Removal?

Certified Mold Specialists: Our vetted professionals are experienced in mold removal and prevention techniques.
Eco-Friendly Products: We prioritize safe and sustainable methods to protect your health and the environment.
Transparent Pricing: Receive detailed estimates with no hidden fees for mold removal costs.
Convenient Booking: Easily schedule and manage your mold remediation services through our user-friendly app.

Get Started Today!

Post your Mold Removal Quest through our app to connect with certified specialists. Whether you need professional mold remediation, black mold removal, or an affordable mold removal company, Masters' Guild delivers reliable and effective solutions.

BEGIN YOUR QUEST

Mold Removal Services We Offer

Masters' Guild provides comprehensive mold removal solutions to protect your property and improve air quality. From detailed inspections to full-scale remediation, we handle it all.

Mold Remediation: Thorough removal and prevention of mold growth.
Black Mold Removal: Safe elimination of harmful mold types.
Detailed Assessments: Identify and address the root causes of mold.
Mobile-Friendly Platform: Easily book, track, and manage your mold removal projects through our app.

What's different about mold removal in London

For mold removal in London, ON, identify whether moisture is tied to winter snow and ice, drainage upkeep, or another ongoing leak. ECCC’s 1991–2020 normal records a January daily average of −5.4 °C, a July average of 21.0 °C, and 961.6 mm of typical annual precipitation. Freezing winters make snow and ice removal and drainage upkeep relevant when planning remediation and moisture-source repair.

Among London’s occupied dwellings in 2021, 29.9% dated to 1961–1980 and 22.4% dated to 1960 or earlier, while 48.8% were single-detached. In Old North, Wortley Village, and Old East Village, the remediation scope should account for hidden spread, attic or crawl-space access, containment and HEPA equipment, demolition, and the leak or moisture-source repair needed to prevent recurrence.

What moves the price in London

Older London housing can make hidden spread and moisture-source investigation more important.
Single-detached homes may require attic or crawl-space access and containment planning.
Winter snow, ice, and drainage upkeep can affect the moisture source.
Spring and late summer through early fall are the busiest booking periods.

Licensing and permits in Ontario

Expect liability insurance and IICRC-trained remediation staff; rebuilding or moisture-source repairs may require locally licensed trades in either country.

Municipal building departments generally enforce the Ontario Building Code and issue residential permits; on-site sewage permits may instead be handled by a board of health or conservation authority. Confirm local exemptions before starting work. In London, permits come from the City of London Building Division.

Tax: Yes—labor for home repair, maintenance, and renovation services is generally taxable at 13% HST.

Best time to book in London

Spring and late summer/early fall are busiest; book in winter for better availability where conditions allow. Peak demand: April, May, August and September. Typical job length: 1-5 days; whole-home projects can take weeks.

DIY or pro? DIY is reasonable only for small hard-surface patches under about 10 sq ft; hire a remediator for larger, recurring, hidden, HVAC, sewage, or flood-related mold.

Areas we cover in London

Pros on Masters' Guild take mold removal jobs across London neighborhoods including Old North, Wortley Village, Byron, Oakridge, Westmount, White Oaks, Lambeth and Old East Village.

Frequently Asked Questions

How much does mold removal cost in London, ON?

For Canadian estimates, a small surface area under 10 sq ft is $500–$1,500 per job. A bathroom or single room is $1,000–$3,500, while basement remediation is $1,500–$5,000; hidden spread, containment, and repairs can change scope.

When is the best time to book mold removal in London, ON?

Spring and late summer/early fall are the busiest periods. Winter can offer better availability where conditions allow, but a moisture source connected to freezing weather, snow, ice, or drainage upkeep still needs assessment as part of the work.

Do I need a permit for mold removal or rebuilding in London?

The City of London Building Division generally enforces the Ontario Building Code and issues residential permits. Confirm local exemptions if related work includes structural renovation or repair, demolition, excavation or foundation construction, a home addition, or a change of building use.

Sources: Our Mold Removal cost guide · www.angi.com · homeguide.com. Updated 2026-09-16.

We Also Serve These Nearby Satellite Cities

In addition to London, ON, we also offer Mold Removal in nearby areas, including the following satellite cities:

St. Thomas, ON
Ingersoll, ON
Woodstock, ON
Komoka, ON
Strathroy, ON