Mold Removal in London, Ontario

Found mold — or smelling something musty you can't find? London Restoration Pros removes mold safely and fixes the moisture problem that caused it, across London and surrounding communities.

Mold Removal Done Properly, Not Just Wiped Away

Spraying mold with a store-bought cleaner makes it invisible for a few weeks. It doesn't kill roots inside porous drywall, doesn't touch the spores already in your air, and does nothing about the moisture feeding it. Professional mold remediation is a different process entirely:

1

Assessment & moisture mapping

We find every affected area — including behind walls and under floors — and identify the water source feeding it.

2

Containment

The work area is sealed with poly sheeting and put under negative air pressure so spores don't spread through your house during removal.

3

Safe removal

Contaminated porous materials (drywall, insulation, carpet underpad) are removed and bagged inside containment. Hard surfaces are HEPA-vacuumed and treated.

4

Air scrubbing

HEPA filtration units run throughout the job to capture airborne spores.

5

Moisture correction

The leak, condensation, or humidity problem gets fixed — otherwise you're paying for the same job again next year.

6

Verification

The area is dried, cleaned, and inspected before containment comes down.

Where We Find Mold in London Homes

Basements — number one, by a wide margin

London's clay soil holds water against foundations, and the finished basements common in neighbourhoods like Whitehills, Westmount, and Pond Mills trap that moisture behind drywall and under carpet where nobody sees it until the smell arrives.

Attics — the sleeper problem

In hundreds of local homes, bathroom exhaust fans vent into the attic instead of through the roof. All winter, warm moist air hits the cold roof sheathing, condenses, and grows mold. Most homeowners discover it when they sell — a home inspector goes up the hatch and the deal stalls.

Century homes

Old East Village, Wortley Village, and Old North bring their own pattern: stone or early-brick foundations that were never waterproofed, plaster walls that hold moisture, and additions where old meets new and air leaks condense.

After any water event

Every flooded basement, burst pipe, or slow appliance leak is a mold problem on a 24–48 hour timer. If you've had water in the last few days, drying matters more than demolition — call before you rip anything out.

Black Mold, Green Mold — Does the Colour Matter?

Less than you'd think. "Black mold" (Stachybotrys) gets the headlines, but Health Canada's position is that any significant indoor mold growth should be removed, whatever the species or colour. Colour doesn't tell you toxicity — a lab test does, and even then the fix is the same: remove it, and fix the moisture.

If you want certainty before committing to remediation, start with testing.

What Mold Removal Costs in London

Honest ranges, because no two jobs are alike. Every quote is written, itemized, and preceded by an actual assessment — never a price over the phone sight-unseen.

Small contained areaA few hundred $

Under ~10 sq ft — e.g. a bathroom ceiling corner.

Medium job$1,500–$5,000

A basement wall section, attic sheathing treatment.

Large remediation$5,000–$15,000+

Finished basement gut after long-term moisture; whole attic.

Mold Removal FAQs

Can I remove mold myself?expand_more

Health Canada suggests homeowners can clean very small patches (under about 1 square metre) on hard surfaces with detergent and water. Beyond that — or if it's inside walls, on porous materials, or keeps returning — containment and professional removal are strongly recommended, because disturbing mold without containment spreads spores through the house.

Do you test the mold before removing it?expand_more

If it's clearly visible and the source is obvious, testing is optional — remediation is the fix either way. Testing earns its cost when mold is suspected but not visible, when you need documentation for a real estate deal or landlord dispute, or post-remediation to verify clearance.

Will the mold come back?expand_more

Not if the moisture problem is fixed. That's why every job includes identifying the water source — and why we do waterproofing work as well.

Does insurance cover mold removal?expand_more

Usually only when the mold results from a sudden, insured water event (like a burst pipe you claimed). Gradual seepage and long-term humidity mold typically aren't covered. We'll tell you honestly which side of the line your situation falls on.

Do you serve areas outside London?expand_more

Yes — Strathroy, Woodstock, St. Thomas, Exeter & Grand Bend, Tillsonburg and everywhere between.

Get a Straight Answer About Your Mold Problem

Free written assessments across London and 70 km around it. If it's small enough to handle yourself, we'll tell you that too.

emergencyCall (519) 870-8391