
General contractor in Vaudreuil-Dorion — RBQ-licensed
We build your projecttrue to level.
A Vaudreuil-Dorion general contractor since 2020, Construction 3 Lacs renovates bathrooms and kitchens, builds cedar decks and home additions, and handles excavation and foundations — in Vaudreuil-Dorion, Vaudreuil-Soulanges, the West Island and Châteauguay. One point of contact, from plans to handover.
RBQ licence 5788-4918-01Licensed and insured general contractor
100% recommendedBy every review on our Facebook page
Since 2020Based in Vaudreuil-Dorion
Free site visitWritten quote, no obligation
What we build in Vaudreuil-Dorion and nearby
Residential renovation and construction services for homeowners in Vaudreuil-Soulanges, the West Island and Châteauguay. Every project is led by the same general contractor, from the first dig to the final finish.
- 2 to 4 weeks
Bathroom renovation
Walk-in showers, vanities, tile, relocated plumbing — a bathroom fully redone in 2 to 4 weeks.
See this service - 3 to 6 weeks
Kitchen renovation
Kitchen redesigned and rebuilt, from plan to finishes, in 3 to 6 weeks.
See this service - 4 to 8 weeks
Basement finishing
Finished, insulated basement: bedrooms, family room, extra bathroom.
See this service - 1 to 3 weeks
Cedar decks and patios
Custom cedar decks, stairs, glass or aluminum railings, pool surrounds, sheds.
See this service - 2 to 4 months
Home additions
Extensions, added storeys and garages, from design to structure, integrated into the existing home.
See this service - 3 to 10 days
Excavation, French drains and foundations
Excavation, French drains and foundations coordinated with a specialist partner, under one person accountable.
See this service - One contract
Turnkey project management
One contract, one point of contact coordinating every trade through to handover.
See this service Not sure about budget?
The estimator gives an honest range, taxes included, in 30 seconds.
Estimate my project
Also: hardwood and tile flooring, facades, cedar fences, stairs and glass or aluminum railings. All services
Our work
Cedar decks, kitchens, bathrooms, basements, home additions — real renovation projects delivered in Vaudreuil-Dorion, Vaudreuil-Soulanges and the West Island, photographed by our crew.
Estimate your project in 30 seconds
An honest ballpark, taxes included — not a firm price. The final number is confirmed after a free site visit.
Why people around here call us
Construction 3 Lacs inc. is a residential renovation general contractor founded in 2020 in Vaudreuil-Dorion, Québec. The company builds bathrooms, kitchens, cedar decks, home additions and excavation work for homeowners in Vaudreuil-Soulanges, Montreal's West Island and Châteauguay.
RBQ licence & insurance
General contractor licensed by the Régie du bâtiment du Québec (RBQ 5788-4918-01) and fully insured. Verifiable online in the RBQ registry.
100% recommended
Every review received on our Facebook page recommends us — homeowners in Vaudreuil-Dorion, Saint-Lazare, L’Île-Perrot and the West Island.
Excavation, coordinated
Excavation is scheduled with a specialist partner and flows straight into the foundations — no waiting between trades.
Local, for locals
Based in Vaudreuil-Dorion, between the three lakes the company is named after: Lake of Two Mountains, Lake Saint-Louis and Lake Saint-François.

Our approach
How a renovation project with Construction 3 Lacs works: four steps, always in the same order. That's what keeps a project pleasant.
Visit & listen
Free, no-obligation home visit anywhere in our service area: we measure, check site conditions and listen to what you actually want.
Written quote
A detailed written quote, line by line, with a realistic schedule — no surprises halfway through.
Work done to level
Our crew and trusted subcontractors, coordinated by a single person in charge.
Final walkthrough together
We walk the site with you and we don't leave until it's clean.
Service area: Vaudreuil-Soulanges, West Island and Châteauguay
A renovation contractor based in Vaudreuil-Dorion, we travel across the Vaudreuil-Soulanges regional county (Saint-Lazare, Hudson, L'Île-Perrot, Pincourt, Rigaud), Montreal's West Island up to Pointe-Claire, and Châteauguay on the South Shore. Your town isn't listed? Call us — we travel.
Vaudreuil-Soulanges8
- Vaudreuil-Dorion—
- 3 km
- L’Île-Perrot7 km
- Pincourt4 km
- Les Cèdres10 km
- Saint-Lazare8 km
- Hudson11 km
- Rigaud23 km
West Island9
- 6 km
- 7 km
- 9 km
- 14 km
- 14 km
- 15 km
- 17 km
- 20 km
- 18 km
South Shore1
- 22 km
Frequently asked questions
What homeowners ask us most often before renovating in Vaudreuil-Dorion and nearby.
Are the visit and the quote really free?
Yes. We come to your home anywhere in Vaudreuil-Soulanges, the West Island or Châteauguay, assess the project and give you a written quote at no cost and with no obligation.
How much does a bathroom renovation cost in Vaudreuil-Dorion?
As a reference, a complete 50 sq ft bathroom in the standard tier lands around $17,500 before taxes, based on our Québec market reference prices (about $350/sq ft). High-end finishes, relocated plumbing or demolition push the amount up. Use the online estimator for a range, then request a firm quote.
Is the online estimate a firm price?
No — it's a ballpark based on market reference prices. The firm price is set in writing after the visit, once we've seen the site conditions.
Are you an RBQ-licensed contractor?
Yes. Construction 3 Lacs inc. holds RBQ licence 5788-4918-01 from the Régie du bâtiment du Québec and is fully insured. You can verify the licence in the public RBQ registry.
Which towns do you serve?
Vaudreuil-Dorion and the whole Vaudreuil-Soulanges region (Saint-Lazare, Hudson, L'Île-Perrot, Pincourt, Les Cèdres, Rigaud), Montreal's West Island (Sainte-Anne-de-Bellevue, Beaconsfield, Kirkland, Pierrefonds, Dollard-des-Ormeaux, Pointe-Claire) and Châteauguay.
Do you build cedar decks?
Yes, it's one of our specialties: custom cedar decks, stairs, glass or aluminum railings, pool surrounds, covered decks and sheds. We also replace rotted posts and structures.
Do you work in winter?
Yes, most interior work (bathrooms, kitchens, basements) continues year-round. Excavation, foundations and decks follow the season.
Do you handle the permits?
We can guide you through municipal permit applications (Vaudreuil-Dorion, Saint-Lazare, L’Île-Perrot or any other town we serve) and provide the documents needed for your plans.
How long does a typical project take?
A bathroom: 2-4 weeks. A kitchen: 3-6 weeks. An addition: a few months. We set a realistic schedule before starting, and we stick to it.
How do I get a quote?
Call 514-444-2391, email [email protected] or fill in the contact form. We call you back to schedule the free visit.

Tell us about your project
Call, write or send the form to discuss your project.
- 1. We call you backTo understand the project and set the visit.
- 2. Free visitWe measure and check site conditions.
- 3. Written quoteDetailed, line by line, no obligation.
- 514-444-2391
- [email protected]
- Vaudreuil-Dorion, Québec
