Basement · Garage · Storage

Basement Cleaning Services

Deep cleaning for basements, garages and storage areas — concrete floors scrubbed, moisture addressed, mould prevented and every forgotten corner restored to a usable condition.

✓ Insured & Bonded✓ Background-Checked✓ Eco-Friendly✓ Since 2004
Insured & BondedEvery team member covered
Background-CheckedVetted before hiring
Eco-FriendlyGreen products on request
Since 200420+ years in Quebec

Below the Surface, Above Expectations

Basement cleaning is a comprehensive deep-clean service for below-grade spaces: concrete floor scrubbing, moisture and mould treatment, storage area organization, dust and debris removal, and sanitization of areas that accumulate neglect over years.

Basements are the most neglected spaces in most homes — dark, damp and out of sight until the musty smell reaches the upper floors or the stored items emerge covered in dust and grime. Montreal's climate makes basement moisture and mould a particular concern.

Our basement cleaning teams tackle concrete floors, foundation walls, storage areas and mechanical rooms with industrial equipment designed for below-grade conditions. We scrub, deodorize, treat moisture-prone areas and transform forgotten basements into clean, usable spaces.

Professional basement cleaning service in Montreal
Basement deep cleaning and restoration

Why Basement Cleaning Is Critical

Mould prevention. Montreal basements are moisture magnets. Professional cleaning and treatment stops mould growth before it reaches your walls, furniture or air quality.

Air quality improvement. Basement air circulates upward through the house. A dirty, mouldy basement contaminates every floor above it.

Usable space recovery. A clean basement becomes a gym, office, playroom or guest suite — reclaiming square footage you are already paying for.

Structural protection. Moisture and grime on foundation walls can signal or cause deterioration. Cleaning reveals problems early.

What's Included

Clean and organized basement space after service
Basement floor scrubbing and finishing

How It Works

  1. Moisture AssessmentIdentify damp areas, mould risk zones and storage priorities before cleaning begins.
  2. Clear and SweepRemove loose debris, cobwebs and surface dust from all areas.
  3. Deep ScrubIndustrial floor scrubbing, wall washing and surface treatment throughout.
  4. Treat and ProtectMoisture-prone areas treated, deodorizer applied, baseline established for maintenance.

Transparent Pricing

Basement cleaning priced by size and condition: standard basement from $180, large or finished basement from $280, garage from $120. Heavy moisture or mould conditions quoted after assessment.

Seasonal basement cleaning recommended for Montreal homes — spring and fall visits keep moisture and mould under control year-round.

Basement Care Add-Ons

Storage organization and labeling during cleaning

Garage floor scrubbing combined with basement service

Dehumidifier maintenance and filter cleaning

Pre-paint foundation wall preparation

Frequently Asked Questions

How do I know if my basement has mould?

Musty odour, visible spots on walls, or allergy symptoms that worsen when downstairs are common signs. Our assessment identifies problem areas during the cleaning.

Can you clean a flooded basement?

We handle water-damage cleanup and drying — not just surface cleaning. Emergency service available for flood situations.

Should I clean my basement before or after renovation?

Both — pre-renovation cleaning removes dust and debris for contractors; post-renovation cleaning removes construction residue.

How often should basements be cleaned?

At minimum annually. Montreal's freeze-thaw cycles make spring and fall checks especially valuable for moisture control.

What areas do you serve?

All of Montreal island, Laval, Longueuil and the South Shore.

Related Services

Deep CleaningPressure WashingSpring & Fall Cleaning

Reclaim Your Basement

Free moisture assessment included with every basement cleaning quote.

Get a Free Quote Call (514) 654-4988
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