Basement renovation and finishing in Laval and the North Shore

A well-finished basement means an extra family room, bedroom or office without building an addition. We handle everything, from planning to finishing.

Our services

More living space without adding on

Before finishing a basement, you need to be sure it is dry and healthy. During the visit, we look for signs of moisture, the condition of the visible foundation, the available ceiling height and the plumbing and electrical entries. That is what lets us propose a layout that will last.

From Blainville, we renovate basements in Laval, Montreal, Blainville and on the North Shore, in bungalows as well as newer homes. Our team has more than 20 years of experience and the company holds RBQ licence 5816-8295-01.

We carry out this work in Laval, Montreal, Blainville and on the North Shore.

Complete finishing

Walls, insulation, ceiling, flooring, lighting and doors: we turn an unfinished basement into living space.

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Family room, bedroom or office

We plan the rooms around your needs, following your city’s rules, including those for bedroom windows.

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Bathroom and laundry room

Adding a bathroom or redoing the laundry room in the basement: we check the existing plumbing and coordinate the work.

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How we work

The steps of your project

1. Call us at 514-298-7286 or fill out the quote form.

2. We visit the site to understand your needs and identify what needs checking.

3. You receive a clear, detailed quote, free of charge.

4. We plan the schedule, materials and required permits with you.

5. We coordinate the work and keep you informed until handover.

Request a quote · 514-298-7286

Floating wooden staircase with glass railing

Frequently asked questions

Your basement renovation questions

Answers to the questions we are asked most often before this type of project.

How much does it cost to finish a basement?

The price depends on the area, the current condition of the basement and the rooms you want (bedroom, bathroom, family room). We visit your basement before giving you a detailed, free quote.

Do I need a permit to finish a basement?

In most cities, yes, especially if you add a bedroom or bathroom or change the plumbing. Requirements vary between municipalities and we take them into account from the start.

What if the basement is damp?

The source of the moisture must be fixed before the walls are closed. We look for signs of moisture during the visit and discuss them with you before planning the finishing.

Can I add a bedroom in the basement?

Yes, if the space allows it and your city’s requirements are met, including those for the bedroom window. We check these points before proposing a plan.

Get your free quote

Tell us about your project and we will get back to you as soon as possible.

Our other services

Kitchen renovation

A more open kitchen, more storage and the finishes you want, delivered by one team.

Learn more

Bathroom renovation

Tiled shower, tub, vanity and plumbing: a complete bathroom makeover with no bad surprises.

Learn more

Commercial renovation

Stores, offices and business premises: a space suited to your business, delivered on schedule.

Learn more

Do you have any questions?

Find all our contact details to reach us easily and quickly.

Les Constructions R.B.J

Bring your projects to life with confidence: quality renovation, project management and construction on the North Shore, Laval and Montreal.

Address

  • 515 Frontenac Street
  • Blainville, QC J7C 3E3

Opening hours

  • Monday to Friday
  • Saturday and Sunday
  • 7 a.m. to 5 p.m.
  • CLOSED
@ Les Constructions R.B.J
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Careers

Join our team, apply now!

You can also email your resume to info@lesconstructionsrbj.com.