★★★★★ Serving Markham, ON

Cold cellar repair in Markham

Dripping ceiling, white stains, mould or peeling paint in your Markham cold room? We fix it permanently — free quotes, top rated by 100+ clients across the GTA.

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Markham+ all of the GTA
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Restored cold cellar in Markham with clean acrylic finish Serving Markham, ON
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Cold cellar restoration in Markham

Whether it's a Unionville two-storey or a newer Cornell build, Markham cold cellars all fight the same battle: warm house air meeting cold concrete, condensing into drips, stains and mould. Our six-step restoration system seals the moisture out and leaves the room clean, dry and usable again.

Cold Cellar Pro serves every Markham neighbourhood — Unionville, Milliken, Cornell, Berczy and Thornhill — with free quotes and workmanship built for below-grade rooms.

We're not a general contractor that also does cold rooms — cold cellar restoration is the only service we offer, using a six-step system developed specifically for cold, below-grade concrete rooms.

The process

The 6-layer restoration system

Every cold room gets the full system — six layers engineered to remove the cause of condensation, not paint over it.

Vapour Barrier Installation

We start by installing a professional-grade vapour barrier over the interior surfaces of your cold cellar. This is the critical first layer that stops warm, humid air from reaching the cold concrete and condensing into water.

Polymer Cement Installation

A base coat of polymer-modified cement is applied over the barrier. Polymer cement bonds aggressively, resists moisture and creates a solid foundation for the insulation system.

EPS Insulation Foam Installation

Rigid EPS insulation foam panels thermally break the cold concrete from the room. Surfaces stay above the dew point — the root cause of condensation is eliminated, not painted over.

Fibre Mesh Installation

A reinforcing fibre mesh is embedded across the insulation. It ties the entire system together, prevents cracking and gives the finish coats long-term structural strength.

Skim Coat of Polymer Cement

A smooth skim coat of polymer cement is trowelled over the mesh, levelling the surface and sealing the system into one continuous, moisture-resistant shell.

Acrylic Finish Coat Installation

Finally, a durable acrylic finish coat is applied in the colour of your choice from our 92-colour chart. The result: a clean, bright, dry cold cellar that stays that way.

Before & after

Results from real GTA cold cellars

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FAQ

Markham questions, answered

01 Do you repair cold cellars in Markham?
Yes — Markham is part of our core GTA service area. Cold Cellar Pro serves every Markham neighbourhood — Unionville, Milliken, Cornell, Berczy and Thornhill — with free quotes and workmanship built for below-grade rooms.
02 How much does cold cellar repair cost in Markham?
It depends on the size of the room and the extent of the moisture damage, so we quote every Markham job individually after a free on-site assessment. See our cost guide for what drives the price.
03 My cold room ceiling drips — can you fix that permanently?
That dripping is condensation forming on the cold concrete, sometimes combined with water seeping through the porch slab. Our 6-step system insulates and seals the room so the moisture cycle stops for good — no repainting every spring.
04 Do you handle mould and white stains too?
Yes. Mould and efflorescence (the white powdery stains) are both moisture symptoms. We treat the surfaces and then rebuild the room with vapour barrier, insulation, polymer cement and an acrylic finish so they don’t come back.
Free quotes in Markham

Reach us

Call or send the form — photos of your cold room help us quote faster. We usually reply the same day.

+1 647 296-4200

Free quote — Markham

Usually same-day reply · no obligation

So we can confirm you're in our GTA service area.

No obligation. Prefer to talk? Call +1 647 296-4200