Atmospec
Open around the clock, the business handles water damage restoration, mould remediation and rebuilding after fire and smoke damage. Founded in 2018, it works in Montréal.
- Website checked
Water damage and mould remediation in Greater Montréal
Restoration firms for drying and mould removal.
24 pros in Greater Montréal
These companies serve Greater Montréal and say on their own websites that they dry out water damage or remove mould. Speed matters: Health Canada says a home dried within 48 hours is less likely to grow mould. After the Debby storm, Laval's door-to-door visits found mould indicators in one affected household in four, one to two months later.
Construction & Restauration inc.
Based in Saint-Hubert, the masonry contractor offers mould remediation and rebuilding after damage, with emergency service and free estimates. It works in Montréal and Saint-Hubert.
- Website checked
Finition Magistrale Inc. / Entrepreneur Général
Water damage restoration is one part of a renovation practice that also covers basement finishing, with free estimates. Open weekday evenings and Saturdays, it serves Saint-Laurent and Montréal.
- Website checked
Restoration Avenue
Burst pipe damage, sewage clean-up and fire and smoke damage are handled alongside mould removal. Financing is available, and the business serves Verdun and Montréal.
- Website checked
Restornet
Bilingual in English and French, the company is open day and night, seven days a week. It focuses on mould remediation in basements and attics, and serves Pointe-Claire, Dorval, Kirkland and Beaconsfield.
- Website checked
Septi-Plus Inc.
Family-owned since 2013, the septic company handles sewage clean-up through drain clearing and septic tank pumping. It is open on weekdays and serves Mascouche and Terrebonne.
- Website checked
Solution air ventilation
Family-owned and based in Laval, the firm cleans ventilation ducts and dryer vents, and decontaminates ducts where mould is suspected. Asbestos work is also offered in Laval and Montréal.
- Website checked
Décontamine-Action
The business is based in Repentigny and serves Montréal. Mould remediation and asbestos work are offered.
- Website checked
KBS Maintenance inc
Water extraction and structural drying are offered alongside mould remediation and fire and smoke damage. Running day and night, every day, it serves Terrebonne and Longueuil.
- Website checked
MoldXperts
A building inspector, the business detects and decontaminates mould in homes and buildings. Open every day until evening, it serves Montréal, Laval and Pointe-Claire.
- Website checked
The Attic Army
Mould remediation and asbestos abatement are offered alongside air sealing and insulation work, under one house-care package. Open seven days a week, it serves Pointe-Claire, Dorval, Kirkland and Beaconsfield.
- Website checked
Constructco
Operating since 2010, the company extracts water, handles mould remediation and rebuilds after damage, with free estimates. Open around the clock Monday to Thursday, it serves Saint-Laurent, Lasalle, Anjou and Verdun.
- Website checked
Mold Busters Montreal
French-language service is available around the clock, every day, for mould remediation, structural drying and water damage restoration. The company, founded in 2005, works across Laval, Brossard, Pierrefonds and Dorval.
Also serves Ottawa
- Website checked
QUALINET Nettoyage Urgence Sinistre — Rive-Sud de Montréal
Structural drying and rebuilding after damage are offered with mould remediation, and service runs around the clock. Active since 1994, the firm covers Saint-Laurent, Laval, Boucherville and Longueuil.
Also serves Sherbrooke
- Website checked
Royal Nettoyage
Founded in 1998, the company handles water damage restoration and mould remediation, with emergency work open round the clock every day. It also serves Anjou, Boisbriand and Saint-Eustache.
- Website checked
Steri Mobile
Mould is removed from surfaces and air, with attic mould removal among its services. Open weekdays, the company has operated since 2011 and serves Kirkland, Pointe-Claire and Montréal.
- Website checked
Atlas Après Sinistre
Available 24 hours a day, seven days a week, the company handles water damage restoration, structural drying and fire and smoke clean-up. It serves Montréal and Laval.
- Licence checked
- Website checked
Beauregard Expert en après-sinistre
Alongside post-damage cleaning and construction work, this restoration specialist does mould remediation and rebuilding after damage.
- Licence checked
- Website checked
CT Restore
Around the clock, every day, the restoration company handles water damage from burst pipes and sewer backups, along with mould decontamination and structural drying. It covers Montréal and Toronto.
- Licence checked
- Website checked
Décontamination Sporetek
Mould decontamination covers attics and concrete basement walls, and air and mould testing is offered. The company works in Montréal, Laval and the Rive-Nord.
- Licence checked
- Website checked
Show 4 more
Groupe RPL
After-disaster firm with a 24/7 line for drying, cleanup and rebuilding, plus mould and asbestos removal.
- Licence checked
- Website checked
On Side Après-Sinistre
Since 1979, the firm has covered water damage restoration, rebuilding after damage and fire and smoke damage. Open at all hours, every day, it serves Laval, Sainte-Catherine and Montréal.
- Licence checked
- Website checked
Renovco
Rebuilding after damage, mould remediation and asbestos work are offered, with emergency service. The company, active since 2002, serves Dorval and Montréal.
- Licence checked
- Website checked
Tandem Service Après Sinistre
After-disaster firm with 24/7 water-damage response, and mould and asbestos decontamination.
- Licence checked
- Website checked
Not yet verified. We checked each one’s own website for this work, and the licence in the public register where one applies, but we haven’t contacted them yet. How a business gets listed
Know a good one we’re missing? Suggest one
What to know in Greater Montréal
After the Debby storm of 9 August 2024, Laval's door-to-door visits in two hard-hit sectors found indicators of fungal contamination in one household in four, one to two months later; about 45% of affected households had not cleaned the water-damaged materials they kept.
Ville de Laval, Bureau de la résilience municipale (source, opens in a new tab) (in French)
Health Canada says a house and its furnishings are less likely to grow mould if they are dried within 48 hours, and that bleach is not necessary to clean up mould.
Before you hire
Rebuilding walls or floors for you is construction work: the company doing it needs an RBQ licence. Check it in the register.
Source: Régie du bâtiment du Québec (source, opens in a new tab)
Questions about hiring in Greater Montréal
Does a water damage or mould company need a licence?
We found no Québec licence specific to drying or mould removal. But anyone who carries out construction work for someone else for profit must hold an RBQ licence, and restoration usually ends with rebuilding walls and floors. Ask for the RBQ number and check it in the register. Industry certifications such as IICRC are what the company itself states; ask to see them. Régie du bâtiment du Québec (source, opens in a new tab)
When should I hire a professional for mould?
Health Canada calls mould extensive when a single patch is larger than 3 m² (32 square feet), and says to consider professional help in that case. It also says bleach is not necessary to clean up mould. If floodwater reached the wall cavities, have the walls opened and checked rather than cleaning only the surface. Health Canada (source, opens in a new tab)
What does Montréal advise after a basement flood?
Montréal advises pumping water out gradually, because pumping too fast can damage foundation walls; ventilating and dehumidifying until every surface is dry; and removing wet drywall and wall materials to at least 50 cm above the water line, leaving the walls open until dry, which can take weeks. Vulnerable people should stay elsewhere during the cleanup. Ville de Montréal (source, opens in a new tab)
What should a restoration contract include?
The Office de la protection du consommateur says the contract should give the contractor’s name and address, the licence and any permit numbers, start and end dates, the liability insurer and policy number, and the total with payment terms, with the estimate attached. For water damage, also ask how drying will be measured and which materials will be removed. opc.gouv.qc.ca (source, opens in a new tab)