Welcome to Firmbuilt Contracting & Design

Kitchen, Bathroom, Basement Renovation & Interior Design in Mississauga

​Do you have big plans but don't quite know where to start? Start by giving us a call! We can help you navigate through the process of floor plans, permits, construction, and design options. With our years of experience and reliable network of trades, architects, engineers and suppliers we can help you take the guess work out of your renovation project. Your Interior Design Consultant will work with you to create a plan that suits your lifestyle and design preferences, and will then implement that plan along with the Construction Project Manager. Whether you are looking to transform one room or a whole home, our design build services are available to help you achieve that perfect space!

At Firmbuilt, we will help you design and remodel the bathroom, kitchen or basement of your dreams with the latest and highest quality materials, installed by experienced and knowledgeable craftsmen, supervised by engineers working with professional plans.

Firmbuilt Contracting &  Design

Interior Design

Benefit from our on-staff designer to assist from concept to completion.

Renovation Experts

Take advantage of our highly trained and knowledgeable staff for your project.

Highly Reviewed & Recommended

Client satisfaction is our highest priority.

Our Services

From initial design concept to complete renovation, Firmbuilt will exceed your expectations.

Kitchen Renovation

It is said that the kitchen is the heart of the home, and we would have to agree. The kitchen is increasingly becoming the most 'lived in' room of the house - not just a place to cook, but also a place to eat, to learn, to socialize and more! Let us help you create a kitchen that is both functional and beautiful - so that you can create delicious meals and wonderful memories!

Bathroom Shower

Bathroom Renovation

Ever dreamed of having that spa-like bathroom that you could escape to after a long day? Let us make your dreams a reality! We are certified installers of Lux Elements shower systems and certified installers of Flextherm in-floor heating systems, and have extensive experience in intricate tile design installations. With our years of design experience, preferred supplier relationships and on-staff skilled trades, we can help you create a serene and relaxing retreat, right in your own home!

Basement Finishing

Finishing your basement is a great way to extend your home's living space. Let us help you create that entertainment oasis you've always wanted. Or add that spare bedroom and bathroom for guests you've always wished you had. Or maybe that separate play area for the kids. The possibilities are endless!

Fireplace Remodelling

Whole Home Renovations & Additions

Whether you just need some advice on how to refresh an old space, or you want detailed plans and assistance to complete a major overhaul, we can help. With an on-staff design consultant and a network of engineers and architects, we can address all of your home renovation needs, such as structural modifications, additions, and outdoor projects. And don't forget to inquire about our decorating and home staging services too!

Get Your Project Started Today!

When you choose Firmbuilt you can rest assured that the work done in your home will be of the highest quality; completed only by knowledgeable industry professionals.

416-888-0097     Get in Touch

Why Choose Us?

Firmbuilt Contracting and Design serves the GTA
and is based in Mississauga


Over 15 Years of Home Renovation Experience

From initial design concept to complete renovation, Firmbuilt
Contracting and Design will exceed your expectations.


Efficient, Reliable, High Quality Work

Firmbuilt was established with a very clear goal in mind: provide the highest quality of work, in the most efficient and reliable manner.


Designer & Contractor

Enjoy the benefits of working with one company to design, renovate, decorate (and warranty!) all work completed in your home.


2-Year Warranty

You can be confident in the quality of work in your home, with our 2-year warranty.


Fully Insured & WSIB Compliant

Rest easy knowing that you are fully covered in the event of an accident.



Stay up to date on your project's schedule, selections and budget with our online portal.

Before vs.After Photos

View Gallery Page

Take a quick peek at some of our renovation before and after images below.

Make Your Renovations Dreams a Reality

Get the best of both worlds! Having both your designer and contractor on the same team just makes sense.

Enjoy the benefits of working with one company to design, renovate and decorate your perfect space, plus warranty all work completed in your home.

Before After


FREE Estimate

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Our Mission & Vision

Firmbuilt Contracting and Design was established with a very clear goal in mind: provide the highest quality of work, in the most efficient and reliable manner. Servicing the GTA and surrounding areas we can meet all your home renovation needs.

Interior Solutions

  • Framing & structural modifications, including creating open concept layouts
  • Additions
  • Complete home renovations
  • Kitchen renovation
  • Bathroom renovation
  • Basement Finishing

  • Drywall and plastering
  • Painting
  • Finish Carpentry
    (baseboards, trim, crown moulding)
  • Flooring
    (hardwood, laminate, tile, vinyl)
  • Electrical & Plumbing
  • Tiling & Backsplash


  • Decks & Fences
  • Driveways
    (interlocking & asphalt)
  • Siding/Stucco/Brick
  • Roofing
  • Window & door installation
  • Exterior caulking
  • General repairs/maintenance

What Some of Our Clients Have to Say:

Marie A. Home Owner - Mississauga

"Firmbuilt was recommended to me by a friend when I decided to have renovations done on my bathroom and kitchen. I was so pleased with the work that Larry and his team did that I also had them do further renovations throughout my condo. When running into complications they were able to turn the challenge into a lovely ending. At the end of each day, they took the time to clean up before leaving. They were friendly, creative, helpful, and they did an amazing job. I love the new look and the increased value of my home. I would not hesitate to recommend them to anyone wishing to do renovations in any part of their home. "
Work Done: Kitchen, Bathroom, Flooring, Paint, Custom Built-ins for Bedroom and Closet.


Sara G. Home Owner - Toronto, ON

"We have an older house (1957) and the piping in the bathroom on the second floor started leaking. We took it as a sign to have a long-overdue renovation done. Larry and his team were wonderful. They were always on time, and took care to leave the house clean each day before they left. They offered advice and guidance as I made of the finishing decisions. Larry himself even ran out to the store a time or two to grab something I had forgotten. He went over and above. If you are looking for someone who really exemplifies the meaning of Customer Service then call Firmbuilt. They are honest and talented, and did I mention fun!"

Get Started on your project today.
Firmbuilt Contracting & Design

Enjoy the benefits of working with one company to design, renovate and decorate your perfect space.

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