Number 1: Hassanpuri Construction & Renovation
Best overallConstruction company based in Brampton, Ontario, taking on home additions.
- Rated 4.9 from 36 Google reviews
- Its services include home additions and construction
Home additions
The 10 Best Home Addition Contractors in Brampton, ON
This list ranks 10 home addition contractors in Brampton, ON. It starts from Google Maps searches for home additions and related building work in Brampton: 126 firms were checked, and building and renovation firms with their own website and an open Google listing went forward. Firms are weighed on their Google rating, the number of reviews behind it, how closely their services match home addition work, and their portfolio. The strongest firm overall sits at place 1, places 2 to 4 carry a badge for what each suits best, and places 5 to 10 run in order. Ratings and review counts are Google's, checked October 14, 2026. How we rank
Number 2: KS Builders
Best for additions and new homesBrampton home builder taking on home additions and new home construction.
- Rated 4.8 from 32 Google reviews
- Its services include home additions and new home construction
Number 3: Prime X Construction
Best for additions with legal basementsBrampton general contractor doing commercial fit-outs for offices, restaurants and stores, and home additions, legal basements and custom homes.
- Builds out restaurants, law and realtor offices, daycares, dental offices and grocery stores.
- Its team brings architects and designers together with contractors on each job.
- Commercial fit-outs include metal framing, T-bar ceilings, office glass, custom millwork and freezer and cooler installation.
- Lays out legal basements to local building codes, as home offices, guest suites or game rooms.
- Home additions, custom homes, kitchens and washrooms make up its residential work across the GTA.
Number 4: King Build Homes
Best for in-law suite additionsBrampton custom home builder that also does home additions, renovations and light commercial construction across the GTA.
- Has been designing, building and renovating for more than 25 years.
- Builds additions such as in-law suites, second storeys and attached garages.
- Keeps design and project management in-house as a design-build firm.
- Completed work includes custom detached homes on Falstaff Avenue and Nineteenth Street in Toronto.
- Also builds and renovates clinics, retail shops and offices.
Number 5: The Epic Builders
Family-run custom home builder and renovation company doing custom homes, full-home renovations, additions, kitchens and bathrooms in Hamilton and Toronto.
- Founded by lifelong tradesman and cabinet maker Isaac, the firm is now led by his son Kam, in full-time management since 2016.
- Kitchens are a core specialty, drawing on Isaac's 17 years of building custom cabinets.
- Its design-build service handles major projects such as full-home renovations, additions and custom homes through one team.
- Addition work includes second storeys, rear additions and garage expansions.
Number 6: Eagle Eye Home Renovations
Brampton-area renovation company doing kitchens, bathrooms, basements, garden suites and second units across the GTA and Southern Ontario.
- Counts 1,000+ completed projects and 600+ clients across eight years of work.
- Works from Barrie to London and from Oshawa to Niagara, as well as throughout the GTA.
- Builds garden suites and legal second units, along with basements, kitchens and commercial fit-outs.
- Keeps design in-house, with its own designers preparing the drawings.
- Backs its labour with a warranty, set out at project handover.
- Its gallery is heavy on basement kitchens, plus a basement home theatre and a basement steam shower.
Ranks 07 to 10
Number 7: Padda Construction Group
Number 8: Halifax Renovation
Number 9: Big Dog Renovations
Number 10: Karry Home Solutions
Compare the firms
| Rank | Firm | Best for | Services | Google rating | Area |
|---|---|---|---|---|---|
| 02 | KS Builders | Additions and new homes | Home additions · New home construction | Rated 4.8 out of 5 from 32 Google reviews | Brampton |
| 03 | Prime X Construction | Additions with legal basements | Home additions · Commercial renovations · Legal basements · Custom homes · Kitchen renovations | Rated 5.0 out of 5 from 14 Google reviews | Brampton |
| 04 | King Build Homes | In-law suite additions | Home additions · Custom homes · Home renovations · Design-build · Light commercial construction | Rated 5.0 out of 5 from 4 Google reviews | Brampton |
| 05 | The Epic Builders | Family-run design-build homes and additions | Custom homes · Full home renovations · Home additions · Kitchen renovations · Design-build | Rated 5.0 out of 5 from 4 Google reviews | Brampton |
| 06 | Eagle Eye Home Renovations | Basement suites and second units in Southern Ontario | Bathroom renovations · Kitchen renovations · Basement finishing · Garden suites · Epoxy flooring | Rated 5.0 out of 5 from 45 Google reviews | Brampton |
| 07 | Padda Construction Group | Garden suites and custom homes | Custom homes · Home additions · Garden suites · Basements · Restoration | Rated 4.9 out of 5 from 62 Google reviews | Brampton |
| 08 | Halifax Renovation | Interior and exterior renovations across the GTA | Home renovations · Legal basements · Custom homes · Additions · Decks and fencing | Rated 5.0 out of 5 from 34 Google reviews | Brampton |
| 09 | Big Dog Renovations | Legal basement apartments and condo remodels | Home renovations · Basement finishing · Legal basement apartments · Condo remodelling · Landscaping | Rated 5.0 out of 5 from 26 Google reviews | Brampton |
| 10 | Karry Home Solutions | Kitchens, closets and built-ins with custom millwork | Home additions · Kitchen renovations · Bathroom renovations · Custom closets · Basement renovations | Rated 4.8 out of 5 from 73 Google reviews | Brampton |
What to check before hiring a home addition contractor in Brampton
Five things to confirm with any firm, on this list or not, before you sign. The rules below are Ontario's and Brampton's.
Registration with the WSIB
Ask the firm for a clearance certificate from the WSIB, which confirms it is registered for workers' compensation and its account is in good standing. The certificate confirms the firm is registered with the WSIB and up to date on its premiums, so check its dates cover your job.
Liability insurance
Ask for a certificate of insurance that names the firm and shows commercial general liability coverage in force for the dates of your job, and check that the subcontractors it brings in are covered too.
The building permit from Brampton
Building permits for homes in Brampton come from the City of Brampton, and every addition needs one, and often a zoning review first. Agree in writing who applies for the permit and books the inspections.
A written contract
Get the scope of work, the payment schedule tied to stages of the work, start and finish dates, how changes are agreed and priced, and who handles permits and cleanup, all in one signed contract before any work starts.
The warranty
A renovation is not a new home, so the new home warranty rules usually do not apply: get the firm's own workmanship warranty in writing, with what it covers and for how long. Renovators in RenoMark, the Canadian Home Builders' Association program, offer a minimum two-year warranty on their work.
Types of home addition contractor in Brampton
The 10 firms on this list fall into 4 groups, read from what each firm's own site says it does and how it is listed on Google.
Home builders4
Home builders build new houses as their main work, and some take on additions and major renovations too.
General contractors2
General contractors run building projects of many kinds and bring in the trades each job needs.
Design-build firms2
Design-build firms design the project and build it under one contract, so one firm answers for the drawings and the work.
Renovation companies2
Renovation companies renovate existing homes, one room at a time or all of it at once.
Home additions in Brampton: common questions
Do I need a permit for a home addition?
Yes. An addition changes the footprint or height of the house, so it needs a building permit and often a zoning review for setbacks and lot coverage. Plans are usually drawn by a designer or architect before the permit application goes in.
Can I add a second storey to my house?
Often, but the existing foundation and walls have to carry the new load. An engineer checks the structure before design starts, and the contractor builds to those drawings.
What happens before an addition is built?
A survey of the lot, a check of the zoning rules for setbacks, height and lot coverage, drawings by a designer or architect, an engineer's review where the structure is affected, and the building permit. Ask the firm which of these steps it handles and which it expects from your designer.
Can I live in my house while an addition is built?
Often. Most of the work happens outside the existing walls until the new space is joined to the house. Expect noise and dust, and a few days without power or water when the addition is tied in.
How do I check that a contractor in Brampton is registered with WSIB?
Ask the firm for a clearance certificate from the WSIB. The certificate confirms the firm is registered with the WSIB and up to date on its premiums, so check its dates cover your job.
Who issues building permits in Brampton?
Building permits for homes in Brampton come from the City of Brampton. For home addition work, every addition needs one, and often a zoning review first. Many firms apply for the permit as part of the job, so agree who does it before you sign.
Before you get quotes
Second Storey Addition: Cost, Structure and What's Involved
What a second storey costs by scope, whether the house can carry it, permits and zoning in Toronto, Vancouver, Calgary and Edmonton, the stages from design to move-in, and the months living elsewhere.
Home Addition Cost in Canada: Prices by Addition Type
Addition prices by type, a 400 sq ft addition costed line by line, the soft costs and permit fees in Toronto, Calgary and Edmonton, and how long it takes.
Multigenerational Home Renovation Tax Credit: Who Qualifies
Who qualifies for the federal multigenerational home renovation tax credit, what the secondary unit must include, which costs count, the 2026 rate and how to claim it on line 45355.
Has something on this list changed?
Send the detail that is out of date, or the name and website of a firm that belongs here.