
Basement renovation and finishing in Toronto
Maximize your home’s square footage with custom basement finishing, from modern legal suites to a family room everyone uses.
A finished basement is the most affordable way to add living space. We turn underused lower levels into rooms that work: legal basement apartments, home theatres, private gyms and home offices. We handle the whole process, from moisture proofing and insulation to framing, electrical and plumbing, so the new space is warm, dry and compliant with the Ontario Building Code.
Because we focus on one project at a time, every corner gets attention, from smooth drywall to the flooring. Whether you want rental income in Toronto or a guest suite in Oakville, the result should feel like a natural extension of the floors above.
Basement Finishes
What we do
- Legal basement apartments
- Family rooms and home theatres
- Gyms and home offices
- Basement bathrooms and kitchenettes
- Stairs and railings
How it is built
- Moisture proofing and insulation
- Framing and drywall
- Electrical and pot lights
- Plumbing
- Laminate, vinyl plank or carpet floors
From first visit to final walk-through
- 01
Visit and quote
We come to see the space, listen to what you want and what you want to spend, and give you a clear quote in person.
- 02
Plan and permits
We plan the layout with you and take care of the drawings and permits a basement needs.
- 03
Protect the house
Floors are covered from the door to the work area, dust is contained and the site is cleaned at the end of every day.
- 04
Updates as we go
You get regular updates by phone or WhatsApp, and any surprise behind the walls is discussed with you before we decide anything.
- 05
Final walk-through
We walk the finished space together and take care of every touch-up you point out before we call the job done.
Basement Finishes we have done
What clients say about our basement finishes
Basement Finishes: common questions
Can you build a legal basement apartment?
Will my finished basement be dry and warm?
Can you add a bathroom or a kitchenette downstairs?
How long does a basement take?
More from Montemayor
Custom cabinetry, quartz and stone counters, open layouts and lighting.

Kitchen Renovations
Custom tile, spa-grade showers, waterproofing and fixtures, done right.

Bathroom Renovations
Whole-home renovations: new layouts, structural changes and premium finishes.

Home Renovations

Ready for your basement finishe?
Tell us about your space. We will come to see it and give you a clear quote in person.


