Mold Removal Toronto & GTA

Professional Mold Removal Service — Toronto & GTA

Mold in a bathroom corner, along a basement wall, or behind drywall after a leak is a moisture problem first and a cleaning problem second. We remove the mold, fix what is feeding it, and rebuild the surface so it does not come back in three months. Insured, WSIB, and serving GTA homeowners since 2019.

Call (647) 657-6367 Get a Free Quote

Same-day visits available across Toronto and the GTA
Insured and WSIB covered · working in GTA homes since 2019
Drywall, paint and caulking restored after removal

What We Remove

Types of Mold We Remove

Most of what we are called out for in Toronto and GTA homes falls into four patterns.

Bathroom Mold

Black spotting along shower silicone, grout lines and ceiling corners. Bathrooms with one small fan and no window are the most common call we get. We remove the growth, cut out the failed sealant, and reseal so water stops sitting in the joint.

Shower and tub silicone
Grout and tile corners
Ceilings above the shower
Fresh caulking after removal

Basement Mold

Musty smell, dark patches near the floor, or fuzzy growth on stored boxes and baseboards. Basement mold usually points to a moisture path through the foundation rather than a surface problem, so we look for the source before we clean anything.

Along the base of finished walls
Behind baseboards and trim
Cold rooms and storage areas
Around floor drains and sump pits

Mold Behind Drywall

After a burst pipe, a slow supply line drip, or a roof leak, the visible stain is smaller than the damage behind it. We open the wall, remove affected drywall and insulation, dry the cavity, and close it back up with new board, taping and paint.

Water stains and bubbling paint
Soft or crumbling board
Wet insulation removal
Full drywall repair after

Windows and Caulking

Older Toronto windows sweat through the winter, and that condensation runs down into the frame, sill and surrounding paint. The result is black edging on the caulking and soft, stained trim that keeps regrowing until the seal is redone.

Window sills and frames
Failed exterior and interior seals
Stained or peeling trim
Condensation-prone basement windows

Root Causes

What Causes Household Mold in GTA Homes

Mold needs moisture, and in this climate there are four usual suppliers.

Humid summers

Summer humidity here regularly sits above 70%. Basements stay cool, that warm damp air condenses on cool surfaces, and growth starts on anything organic.

Snowmelt and spring rain

Freeze-thaw cycles open small cracks in foundations and window wells. Meltwater wicks through the concrete and shows up as damp drywall at the base of a finished basement wall.

Weak bathroom ventilation

Many older homes and condo units vent the bathroom with an undersized fan, or none at all. Steam has nowhere to go, so it settles into grout, silicone and ceiling paint several times a day.

Failed seals and slow leaks

A cracked bead of caulking behind a tub, a dripping supply line under a vanity, or a loose toilet flange lets water into the cavity quietly. By the time it stains the surface, the board behind it is usually already affected.

How It Works

Our Removal and Remediation Process

Five steps, and the order matters — cleaning before the moisture is handled just buys a few weeks.

Find the moisture source

We inspect the affected area and the space around it, check whether the material is still wet, and trace where the water is coming from before any removal starts.

Contain the work area

Plastic sheeting, covered floors and taped-off doorways keep spores and dust out of the rest of the home while we work, especially on occupied floors.

Remove affected material

Surface growth is cleaned and treated. Porous material that cannot be saved — soft drywall, wet insulation, old silicone, damaged trim — is cut out and bagged rather than painted over.

Dry and fix the cause

The cavity is dried before anything closes up. We repair what let the water in, whether that is fresh caulking, a sealed gap, or a plumbing fix handled by our licensed trades for plumbing and electrical work.

Rebuild and finish

New drywall, taping, sanding, primer and paint, or new sealant and trim, so the finished area matches the rest of the room instead of looking patched.

DIY or Pro

When to Call a Pro vs. Handle It Yourself

Not every spot needs a crew. Here is the line we would draw.

Reasonable to do yourself

A patch smaller than about a square foot on a hard, non-porous surface — tile, glazed ceramic, painted trim — that wipes away and stays gone. Ventilate the room, wear gloves and a mask, and keep an eye on it for a few weeks.

Call a pro instead

Growth larger than roughly a square metre, anything that keeps returning after cleaning, soft or stained drywall, a musty smell with no visible source, mold after a flood or sewer backup, or growth on a heating or ventilation component.

Why repainting fails

Primer over a mold stain hides it for a season. If the drywall behind the paint is still holding moisture, the growth continues under the new coat and comes back through, usually worse than before.

Pricing

Mold Removal Pricing

Transparent rates, quoted before we start. No charge for the assessment.

Minimum Visit Flat

$150

Small, contained spots

Shower or window silicone
One bathroom corner
Clean, treat and reseal
Single visit

Hourly Work Hourly

$90/hr

Most jobs — anything over 2 hours

Basement wall sections
Opening walls to check cavities
Removal plus drywall rebuild
Materials quoted separately

Larger Projects Quoted

Custom

Multi-room or post-flood

Fixed price after assessment
Staged over multiple days
Plumbing or electrical as needed
Full finishing included

Pricing starts at a $150 minimum, and jobs running longer than two hours are billed at $90/hr. Bathroom work is often combined with bathroom repairs or drywall repair in the same visit, which is usually cheaper than booking them separately.

Where We Work

Service Areas

RenoHeal removes mold for homeowners across Toronto and the GTA, including Toronto, North York, Scarborough, Etobicoke, Vaughan, Markham and Richmond Hill. Same-day appointments are often available, and we can usually tell you over the phone whether what you are describing is a surface job or something that needs the wall opened.

FAQ

Frequently Asked Questions

How much does mold removal cost in Toronto?

Our pricing starts at a $150 minimum for a small contained spot, and work running past two hours is billed at $90/hr. Larger or post-flood projects are quoted as a fixed price after we assess them. Materials such as drywall, insulation and sealant are quoted separately.

Do you remove the mold or just clean the surface?

Both, depending on the material. Hard surfaces are cleaned and treated. Porous material that has absorbed moisture — drywall, insulation, old caulking, damaged trim — gets cut out and replaced, because cleaning the face of it leaves the growth inside.

Is RenoHeal licensed for mold removal?

Mold removal is not a licensed trade in Ontario, so no contractor here holds a mold licence. What we can tell you is that RenoHeal is insured and WSIB covered, has worked in GTA homes since 2019, and brings in licensed trades for any plumbing or electrical work the repair needs.

Will the mold come back after you remove it?

Not if the moisture source is dealt with, which is why we look for it first. If the cause is outside the scope of the repair — a foundation issue, a roof leak, or ventilation that needs upgrading — we tell you plainly so you can address it before it undoes the work.

Do you repair the wall after removal?

Yes. New drywall, taping, sanding, primer and paint, or new sealant and trim for bathroom work. The finished area should blend with the rest of the room rather than look like a patch.

Ready to Book

Get the Mold Removed and the Cause Fixed

Free assessment, clear pricing, and the surface rebuilt when the removal is done.

Call (647) 657-6367 Get a Free Quote

Insured · WSIB · Serving the GTA since 2019

Professional Mold Removal Service — Toronto & GTA

Types of Mold We Remove

Bathroom Mold

Basement Mold

Mold Behind Drywall

Windows and Caulking

What Causes Household Mold in GTA Homes

Humid summers

Snowmelt and spring rain

Weak bathroom ventilation

Failed seals and slow leaks

Our Removal and Remediation Process

Find the moisture source

Contain the work area

Remove affected material

Dry and fix the cause

Rebuild and finish

When to Call a Pro vs. Handle It Yourself

Reasonable to do yourself

Call a pro instead

Why repainting fails

Mold Removal Pricing

Service Areas

Frequently Asked Questions

Get the Mold Removed and the Cause Fixed

Services

Service Areas

Popular Guides

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Handyman Services Across the GTA

Professional Mold Removal Service — Toronto & GTA

Types of Mold We Remove

Bathroom Mold

Basement Mold

Mold Behind Drywall

Windows and Caulking

What Causes Household Mold in GTA Homes

Humid summers

Snowmelt and spring rain

Weak bathroom ventilation

Failed seals and slow leaks

Our Removal and Remediation Process

Find the moisture source

Contain the work area

Remove affected material

Dry and fix the cause

Rebuild and finish

When to Call a Pro vs. Handle It Yourself

Reasonable to do yourself

Call a pro instead

Why repainting fails

Mold Removal Pricing

Service Areas

Frequently Asked Questions

Get the Mold Removed and the Cause Fixed