Company Facts
Alerte Fissure Inc at a Glance
The work
- Best for
- Homes with foundation cracks, settlement and water seepage together
- Primary service
- Waterproofing
Where
- Headquarters
- Montreal, QC
- Service area
- Montreal
- Emergency service
- Not advertised
Money and guarantees
- Free estimates
- Yes
- Financing
- Not advertised
- Workmanship warranty
- 10 years against water coming through foundation walls where a drain and membrane were installed; 25 years on pile stability; 5 years on crack repair from the outside; 1 year on temporary interior crack injection (as stated on the company FAQ).
Credentials
- APCHQ certified
- APCHQ certified (reported by the company, not verified)
Editorial Review
Our Take on Alerte Fissure Inc
Alerte Fissure earns its place by being a piling specialist that also does the water work properly, with a Delta-MS membrane, French drain and written 10 year warranty. Its 4.8 from 167 Google reviews is strong, though most praise is for structural jobs. Confirm its RBQ licence yourself, since the site does not publish the number.
Best forHomes with foundation cracks, settlement and water seepage together
What We Like
- Exterior waterproofing with a Delta-MS drainage membrane tied to a new French drain
- 10 year stated warranty against water coming through foundation walls
- 25 years in foundation work and piling, per the company's own site
- Google rating of 4.8 from 167 reviews, read October 21, 2026
- Staffed Pointe-aux-Trembles office serving Montreal, Plateau Mont-Royal and Dorval
Things to Consider
- Piling is the core trade, so most reviews describe structural jobs rather than drain-only work
- The site does not state an RBQ licence number, so check rbq.gouv.qc.ca before signing
- Office hours are weekdays only, 8:30 to 4:30 with a lunch break, and no emergency service is listed
Customer Ratings
Google Reviews for Alerte Fissure Inc
Customer ratings shown here come from Google. They are separate from our editorial review above.
Rating Distribution
- 5 stars93%
- 4 stars2%
- 3 stars2%
- 2 stars1%
- 1 star3%
iAbout this distribution
The distribution reflects the 167 Google reviews available when this profile's review data was last refreshed on October 28, 2026. Ratings and counts change continuously on Google, so figures here may lag the live profile slightly. We publish only the values returned by the source, never estimates for missing bands.
Recent Google Reviews
Editorial Ranking
Why Alerte Fissure Inc Made Our Top 7
It holds position 4 in 7 Best Waterproofing Companies in Montreal, QC (2026).
Areas Served
Based in Montreal, QC.
iAbout service coverage
Coverage is as the business describes it, cross-checked against where its recent documented work is. A company will often travel beyond the areas listed here for a large job and decline a small one at the same distance, so confirm your address before scheduling.
Company Background
About Alerte Fissure Inc
Alerte Fissure Inc is a Montreal foundation specialist best known for hydraulic piling (pieutage), which means its waterproofing and drain work comes from a crew that spends most days under houses that have already moved. The company works from 4005 Boulevard Saint-Jean-Baptiste in Pointe-aux-Trembles, on the east end of the island, and its site says it has been repairing foundations and installing piles for more than 25 years.
For this ranking, the relevant side of the business is the water work. Its exterior waterproofing (imperméabilisation) uses a Delta-MS dimpled drainage membrane that bridges cracks and sends water down to a new French drain (drain français). The site also describes the double-layer Delta-Drain for buildings near waterways or with heavy water buildup. Crack repair is offered from the outside with a 5 year warranty, or as a temporary interior injection with a 1 year warranty. Drain and membrane work carries a 10 year warranty against water coming through the foundation walls, and the pile work is guaranteed for 25 years.
Reviews back up the pitch. Alerte Fissure has 4.8 from 167 Google reviews, read October 21, 2026. One couple who bought in Cartierville in 2025 had stabilization, waterproofing, crack repair and a French drain done together, with backfill and new soil to finish. Other reviewers name Michel, the foreman, and Martin for explaining the job from start to finish, and Stephane and Jerome for repairing two cracks in a single morning at a price the customer called fair. Most of the detailed praise concerns piling projects, so drain-only buyers have fewer examples to read.
The site lists Montreal, Plateau Mont-Royal, Pointe-aux-Trembles, Dorval, Brossard and Terrebonne among its service areas. It says the company is APCHQ certified and recommended by CAA Habitation, and the office is open weekdays only, from 8:30 to 4:30 with a lunch break.
This company suits owners whose house shows cracks, seepage and possibly settlement at once, since one crew can judge all three. It suits less well someone shopping only for a sump pump or an interior drain, which the site does not list. Before booking, check the contractor on the free Régie du bâtiment du Québec (RBQ) lookup at rbq.gouv.qc.ca, because the site does not state a licence number. Also ask about CNESST clearance, insurance, and the written terms of each warranty.
iWhere this information comes from
Company history, ownership and capability details on this page are provided by the business and reviewed by our editors for plausibility and consistency. They are not the same as the credentials block, where each item carries its own verification status and source.
Other Sources
Reputation by Source
We show each source separately rather than blending them into a single score, because they measure different things.
Pricing
Company Pricing & Estimates
What this company publishes about its own pricing.
- Free estimates
- Yes
- Workmanship warranty
- 10 years against water coming through foundation walls where a drain and membrane were installed; 25 years on pile stability; 5 years on crack repair from the outside; 1 year on temporary interior crack injection (as stated on the company FAQ).
Gallery
Project Photos
Business-submitted, reviewed by our editors
Compare
Similar Waterproofing companies in Montreal
Yvon Aubert Construction Inc
5.0(93 Google reviews)Leaking or widening foundation cracks · MontrealRanked #5View profileSous-Sol Confort
4.9(380 Google reviews)Interior drains, sump pumps and crack repair on the island · MontrealRanked #2View profileAkton Injection
4.9(537 Google reviews)Leaking foundation cracks and French drains on the island and nearby suburbs · MontrealRanked #3View profileLes Fondations Nouvelle Génération Inc.
4.9(140 Google reviews)Foundation cracks, French drains and waterproofing across the island · MontrealRanked #7View profileSystèmes Sous-sol Québec
4.8(1300 Google reviews)Montreal homeowners wanting a drain français and sump system with a lifetime transferable warranty · MontrealRanked #1View profileSolage Solide
4.7(60 Google reviews)West Island and Vaudreuil homeowners needing crack repair or a French drain · MontrealRanked #6View profile
Alerte Fissure Inc FAQs
Is Alerte Fissure licensed in Quebec?
Alerte Fissure does not publish an RBQ licence number on its website, so check it yourself. Construction contractors in Quebec must hold a Régie du bâtiment du Québec (RBQ) licence, and you can look it up free at rbq.gouv.qc.ca using the company name or the address 4005 Boulevard Saint-Jean-Baptiste. The company says on its site that it is APCHQ certified and recommended by CAA Habitation. Also ask for proof of CNESST clearance and liability insurance before signing a quote.
What are Alerte Fissure's hours and do they offer emergency service?
Alerte Fissure is open Monday to Friday, 8:30 to 12:00 and 1:00 to 4:30, and closed on weekends, according to its Google listing. No 24 hour or emergency call-out service is listed on its website. You can call 514-645-6052 or send photos of the problem through the contact form to request a free assessment. If water is actively entering your home outside those hours, plan on a short-term fix first and book the permanent work on the next business day.
What warranty does Alerte Fissure give and which areas does it serve?
Alerte Fissure states a 10 year warranty against water coming through foundation walls where it installed a drain and membrane. Its FAQ also lists 25 years on pile stability, 5 years on crack repair done from the outside and 1 year on a temporary interior injection. The site names Montreal, the Plateau Mont-Royal, Pointe-aux-Trembles, Dorval, Brossard, Terrebonne and other towns around the island as service areas. Ask for the warranty terms in writing, including whether they transfer to a new owner, since the site does not say.
Is Alerte Fissure Inc licensed and insured?
We checked 0 of 2 credentials against the issuing authority. Verified items carry the date we checked; reported items are what the business told us and we could not independently confirm.
What areas does Alerte Fissure Inc serve?
Montreal. Coverage is as the business describes it, cross-checked against where its recent documented work is. Confirm your address before scheduling, particularly at the edge of a service area.
Does Alerte Fissure Inc offer emergency service?
Emergency availability is not listed for this company. If you need an urgent call-out, check the ranking for companies that do list it.
What warranty do they offer?
10 years against water coming through foundation walls where a drain and membrane were installed; 25 years on pile stability; 5 years on crack repair from the outside; 1 year on temporary interior crack injection (as stated on the company FAQ).. There are usually two warranties on a job: the manufacturer covers materials, the contractor covers workmanship. Get both in writing and check whether the workmanship coverage transfers if you sell.
How was this profile built?
Credentials come from issuing authorities, ratings from the company's Google Business Profile with the date we read them, and the editorial take from our own review of estimates, warranty documents and public feedback. Anything the business told us is labelled as reported.
Can a business pay to improve its profile?
A business can subscribe to manage its own listing details, and it can buy a labelled sponsored placement. Neither changes a ranking position or the editorial assessment on this page.
Is Something Incorrect?
Business information changes. Tell us about an address, phone, website, service area, credential or ownership change, or let us know if this company has closed.
Suggest an UpdateOwn Alerte Fissure Inc?
Claim your profile to verify and maintain your business information, services and service area.
iWhat claiming does
Claiming lets you correct and maintain the factual information on this profile. Claiming or upgrading a profile does not guarantee inclusion in a TenBestFind ranking and never affects ranking position, which is decided editorially.
About This Business Profile
- Last reviewed
- October 2026
- Profile last updated
- November 11, 2026
- Google review data updated
- October 28, 2026
- Sources checked
- Issuing authorities, Google Business Profile, Company website
- Could not verify
- APCHQ certified (reported only), insurance, founding year
- Sponsorship status
- No commercial relationship