# 8 Best General Contractors in Mississauga (2026)

The 8 best general contractors in Mississauga for 2026, ranked on checked Google ratings, with GTA renovation costs, permit fees and a hiring checklist.

_Source: https://www.prohousemaintenance.com/best/general-contractors/mississauga/_

- **Author:** [Elena Porter](https://www.prohousemaintenance.com/authors/elena-porter/), Renovation Writer
- **Published:** 2026-10-18

Google ratings and registry licences checked October 18, 2026.

**Disclosure:** Pro House Maintenance publishes this list and ranks its own free matching service first. Every other business is ranked by the published method below, and no business paid to be listed.

The best general contractors in Mississauga in 2026 are Pro House Maintenance, 3M Renovations and A-Z Property Improvement & Remodeling, then five more top-rated local firms. Our Google Maps searches found 120 businesses for Mississauga. Only 26 were Mississauga renovation contractors with a website and 4.5 stars from 10 or more reviews. General West Contractors puts a GTA contractor's fee at 15% to 25% of hard costs.

Key takeaways

- Only 26 of the 120 businesses our Mississauga general contractor search found met our bar of 4.5 stars from 10 or more reviews.
- All 7 ranked Mississauga general contractors hold a 4.9 or 5.0 Google rating, from 24 to 147 reviews each.
- General West Contractors puts a focused single-room GTA renovation at $50,000 to $110,000 in 2026 (CAD).
- Mississauga charges $13.96 per square metre for a residential addition permit in 2026, with a $244 minimum.
- Ontario requires a written contract for any home renovation worth more than $50.

**The best general contractors in Mississauga at a glance (ratings and licences checked Oct 18, 2026)**

| Rank | Company | Best for | Credentials | Google rating | Based in |
| --- | --- | --- | --- | --- | --- |
| 1 | [Pro House Maintenance](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#pro-house-maintenance) | Comparing vetted general contractors for free | Every pro: licences, WSIB, insurance, references, background | Not applicable (matching service) | Serves Mississauga |
| 2 | [3M Renovations Inc.](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#3m-renovations-inc) | Legal basements plus steel and wood framing | None stated on its website | 5.0 (76 reviews) | Mississauga |
| 3 | [A-Z Property Improvement & Remodeling](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#a-z-property-improvement-and-remodeling) | Basement finishing with engineered drawings | None stated on its website | 5.0 (62 reviews) | Mississauga |
| 4 | [Greater Toronto General Construction](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#greater-toronto-general-construction) | Full renovations plus windows, doors and decks | Founded Serving the GTA for over 8 years (company-stated) | 5.0 (41 reviews) | Service area only |
| 5 | [Dream Timbers Construction](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#dream-timbers-construction) | Permit-managed renovations from a builder since 2009 | Founded 2009 (company-stated) | 5.0 (40 reviews) | Mississauga |
| 6 | [Ace Build Contracting](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#ace-build-contracting) | Additions and custom homes with a 2-year warranty | Founded 2018, Insurance stated (company-stated) | 4.9 (147 reviews) | Mississauga |
| 7 | [Topline Home Pros](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#topline-home-pros) | Full home remodels, basements and outdoor projects | None stated on its website | 5.0 (24 reviews) | Service area only |
| 8 | [Mike's KDM Renovation and Construction Inc.](https://www.prohousemaintenance.com/best/general-contractors/mississauga/#mike-s-kdm-renovation-and-construction-inc) | Bathroom and basement jobs with a 2-year warranty | None stated on its website | 4.9 (60 reviews) | Service area only |

_Quote form: this page has a form to request free quotes from local pros. Open https://www.prohousemaintenance.com/best/general-contractors/mississauga/ to use it._

## Who are the best general contractors in Mississauga in 2026?

The best general contractors in Mississauga in 2026 are Pro House Maintenance, 3M Renovations and A-Z Property Improvement & Remodeling. Next come Greater Toronto General Construction, Dream Timbers, Ace Build Contracting, Topline Home Pros and Mike’s KDM Renovation. All seven firms we rank hold a 4.9 or 5.0 Google rating.

## 1. Pro House Maintenance: best for comparing vetted general contractors for free

Pro House Maintenance is our free matching service, and it ranks first because it does the screening for you. The pros we match in Mississauga have passed WSIB, insurance, reference and background checks. You describe the job once, get several written quotes and pick the one you want. Our satisfaction guarantee covers the pro you hire.

Mississauga has plenty of firms that build and renovate homes, but few pass a basic bar. Our searches found 120 of them, and only 26 held a 4.5-star rating from 10 or more reviews. Tell us if you plan an addition in Erin Mills or a basement in Streetsville.

What we check before a general contractor joins our network

- **Trade licences.** Renovations and additions often include electrical and gas work, so we confirm ESA and TSSA licences for the trades that need them.
- **WSIB clearance and liability insurance.** We confirm a current WSIB clearance and commercial general liability insurance before a pro joins our network.
- **Reviews and references.** We read public reviews and speak with past clients before a pro is accepted, looking for patterns, not one-off complaints.
- **Background checks.** We run background checks before a pro is matched with homeowners, because the people in your home matter as much as the work.

How working with Pro House Maintenance works

1. **Tell us about the job.** Share the project and your address through the free quote form. It takes about a minute.
2. **Get matched with vetted pros.** We match you with several pros who have already passed our checks and serve your area.
3. **Compare written quotes.** Each pro gives you a written quote, so you can compare price, scope and timing side by side.
4. **Hire with a guarantee behind you.** You choose who to hire. Work from a pro we matched you with is backed by our satisfaction guarantee; ask us for the terms before you sign.

**Cost to you:** Free for homeowners. There is no charge to request quotes or to be matched.

[Get matched with vetted general contractors in Mississauga](https://www.prohousemaintenance.com/contact/)

## 2. 3M Renovations Inc.: best for legal basements plus steel and wood framing

- Google rating [5.0 from 76 reviews](https://www.google.com/maps/search/?api=1&query=3M%20Renovations%20Inc.&query_place_id=ChIJhW8agWQsy2wRtZR_Nbb2lzQ) checked Oct 18, 2026
- Based in Mississauga
- [Visit the 3M Renovations Inc. website](https://www.3mrenovations.com/?utm_source=google&utm_medium=wix_google_business_profile&utm_campaign=7187327247789475826)

3M Renovations lists a Torbram Road address in northeast Mississauga and holds a 5.0 Google rating from 76 reviews. Its site covers kitchens, baths and basements, and it says it also does legal basement work and steel and wood framing.

- **Strengths:** The site names legal basement work, which needs a permit and inspections.
- **Watch-outs:** We found no WSIB or licence note on its site, so ask for both in writing.
- **Best for:** A basement unit or a job that moves inside walls.

## 3. A-Z Property Improvement & Remodeling: best for basement finishing with engineered drawings

- Google rating [5.0 from 62 reviews](https://www.google.com/maps/search/?api=1&query=A-Z%20Property%20Improvement%20%26%20Remodeling&query_place_id=ChIJwwkI5WhDK4gRxoK_n3DV-cM) checked Oct 18, 2026
- Based in Mississauga
- [Visit the A-Z Property Improvement & Remodeling website](https://azreno.ca/)

A-Z Property Improvement & Remodeling lists a Ridgeway Drive address in west Mississauga and holds a 5.0 Google rating from 62 reviews. Its site says it has over 18 years of experience, and that its own team draws the plans for each job.

- **Strengths:** Plans drawn in-house mean you do not need a separate designer for the permit.
- **Watch-outs:** Its site leans toward basements, kitchens and floors, so ask if it builds additions.
- **Best for:** A full basement finish in Erin Mills or Churchill Meadows.

## 4. Greater Toronto General Construction: best for full renovations plus windows, doors and decks

- Google rating [5.0 from 41 reviews](https://www.google.com/maps/search/?api=1&query=Greater%20Toronto%20General%20Construction&query_place_id=ChIJF8FWtm0RJG8RV3mRk321V3k) checked Oct 18, 2026
- Founded Serving the GTA for over 8 years company website
- Based in Service-area business (no public street address)
- [Visit the Greater Toronto General Construction website](https://www.gtgc.ca/)

Greater Toronto General Construction serves Mississauga with no public street address on Google and holds a 5.0 rating from 41 reviews. Its site says it has served the GTA for over 8 years. It lists full renos, kitchens, baths, windows, doors, decks, interlock, trim and drywall.

- **Watch-outs:** Google shows no street address, so ask where its office is and who runs your job.
- **Best for:** A whole-house refresh that also needs new doors or a deck.

## 5. Dream Timbers Construction: best for permit-managed renovations from a builder since 2009

- Google rating [5.0 from 40 reviews](https://www.google.com/maps/search/?api=1&query=Dream%20Timbers%20Construction&query_place_id=ChIJQR9eTMYXK4gRnBk5RpQpTVI) checked Oct 18, 2026
- Founded 2009 company website
- Based in Mississauga
- [Visit the Dream Timbers Construction website](https://dreamtimbers.com/)

Dream Timbers Construction lists a Britannia Road East address in Mississauga and holds a 5.0 Google rating from 40 reviews. Google lists it as a construction firm and custom home builder. Its site says it has built since 2009, and that it gets the permits and books the trades on each job.

- **Watch-outs:** It also builds shops and offices, so ask who leads home jobs day to day.
- **Best for:** A legal second suite, garden suite or full house job.

## 6. Ace Build Contracting: best for additions and custom homes with a 2-year warranty

- Google rating [4.9 from 147 reviews](https://www.google.com/maps/search/?api=1&query=Ace%20Build%20Contracting&query_place_id=ChIJ95_ygsz8uUkRl6PJNJn6Upg) checked Oct 18, 2026
- Founded 2018 company website
- Warranty 2-year workmanship warranty company website
- Based in Mississauga
- [Visit the Ace Build Contracting website](https://acebuildcontracting.ca/)

Ace Build Contracting lists a Bonhill Road address in Mississauga and holds a 4.9 Google rating from 147 reviews, the most on this list. Its site says it was founded in 2018 and builds major renos, additions and custom homes. It states a 2-year warranty on its work.

- **Strengths:** The site says it is WSIB-covered with $5M liability coverage and holds an ESA/ECRA licence.
- **Watch-outs:** Our registry check did not match that ESA licence, so look it up in the ESA Contractor Locator.
- **Best for:** A rear addition or second storey run by one team from permit to final walk.

## 7. Topline Home Pros: best for full home remodels, basements and outdoor projects

- Google rating [5.0 from 24 reviews](https://www.google.com/maps/search/?api=1&query=Topline%20Home%20Pros&query_place_id=ChIJCaMPP_HynyURxCUbF8E_p-Q) checked Oct 18, 2026
- Based in Service-area business (no public street address)
- [Visit the Topline Home Pros website](https://toplinehomepros.com/)

Topline Home Pros serves Mississauga with no public street address on Google and holds a 5.0 rating from 24 reviews. Google lists it as a general contractor, and its one-page site lists full home remodels, basements, kitchens, baths, outdoor jobs, and decks and fences.

- **Watch-outs:** Its site has few details on warranty or insurance, so ask for both in writing.
- **Best for:** A mid-sized remodel, or a deck and fence job, with one contact.

## 8. Mike's KDM Renovation and Construction Inc.: best for bathroom and basement jobs with a 2-year warranty

- Google rating [4.9 from 60 reviews](https://www.google.com/maps/search/?api=1&query=Mike's%20KDM%20Renovation%20and%20Construction%20Inc.&query_place_id=ChIJ_R0c92ZWHm0RjAN0c11349I) checked Oct 18, 2026
- Warranty 2-year workmanship warranty company website
- Based in Service-area business (no public street address)
- [Visit the Mike's KDM Renovation and Construction Inc. website](https://tools.kdmrenoconinc.com/home-renovations?utm_source=gmb&utm_medium=referral)

Mike’s KDM Renovation and Construction serves Mississauga with no public street address on Google and holds a 4.9 rating from 60 reviews. Its site lists bath and kitchen jobs, basements and general building work. It says a 2-year warranty covers its work.

- **Strengths:** The site says if work fails due to workmanship, the crew comes back to fix it.
- **Watch-outs:** Ask for the full warranty terms in the contract, since the site gives only a short note.
- **Best for:** Bathroom and basement jobs across Peel.

## How much does a general contractor cost in Mississauga?

A Mississauga general contractor charges a fee of 15% to 25% of hard costs in 2026, says General West Contractors. Its GTA guide puts a one-room job at $50,000 to $110,000, and a full gut or mid-size addition at $220,000 to $400,000. Capable Group puts a one-storey GTA addition at $350 to $450 per square foot.

**Mississauga and GTA general contractor cost benchmarks (2026, CAD)**

| Job | Typical cost (CAD) | Source |
| --- | --- | --- |
| GC management fee | 15% to 25% of hard costs | [General West](https://generalwestcontractors.ca/cost-guide/general-contracting) |
| Focused single-room renovation | $50,000 to $110,000 | [General West](https://generalwestcontractors.ca/cost-guide/general-contracting) |
| Whole-floor or multi-room renovation | $110,000 to $220,000 | [General West](https://generalwestcontractors.ca/cost-guide/general-contracting) |
| One-storey rear or side addition | $350 to $450 per sq ft | [Capable Group](https://capablegroupinc.ca/home-addition-cost-calculator/) |
| Second storey on top | $400 to $550 per sq ft | [Capable Group](https://capablegroupinc.ca/home-addition-cost-calculator/) |
| Mississauga addition permit | $13.96 per m2 ($244 minimum) | [City of Mississauga](https://www.mississauga.ca/wp-content/uploads/2026/03/03153640/Schedule-B-2026-Classes-of-Permits-and-Fees.pdf) |

Scope moves the price more than the fee does, and General West says touching pipes, wires and ducts often adds $15,000 to $40,000, and it tells you to hold back 10% to 15% for surprises. Capable Group adds 15% to 25% for drawings, engineering and permits.

Our [home addition cost guide](https://www.prohousemaintenance.com/blog/home-addition-cost/) breaks those numbers down by type, and the [general contractor statistics](https://www.prohousemaintenance.com/blog/general-contractor-statistics/) cover Ontario job data. Then [get free home addition quotes in Mississauga](https://www.prohousemaintenance.com/services/home-additions/ontario/mississauga/) from screened pros.

## How do you choose a general contractor in Mississauga?

To choose a Mississauga general contractor, check its city trade licence, WSIB clearance and liability cover, then compare written quotes. Ontario law says any home reno contract worth more than $50 must be in writing. The province also suggests a deposit of no more than 10% of the price.

1. **Check the licence.** A general contractor hires the trades, and Ontario says no one can run an electrical contracting business without an ESA licence. Check the electrician on your job in [ESA's Contractor Locator](https://licensing.esasafe.com/contractor-locator-tool/).
2. **Confirm WSIB clearance.** Ask for the company’s WSIB account number and confirm a current clearance on [WSIB’s free eClearance lookup](https://clearances.wsib.ca/Clearances/eclearance/start?lang=en).
3. **Ask for proof of liability insurance.** A certificate of commercial general liability insurance should name the company that will do the work.
4. **Check the city licence.** Mississauga requires a trade business licence for building renovation, plumbing and heating (HVAC) work. See the [Mississauga trade business licensing page](https://www.mississauga.ca/services-and-programs/business/licences-and-permits/trades-business-licensing/).
5. **Get it in writing.** Under Ontario law, any home renovation contract worth more than $50 must be in writing, and the final price cannot exceed an estimate by more than 10% unless you agree ([Ontario consumer protection rules](https://www.ontario.ca/page/your-rights-when-starting-home-renovations-or-repairs)).
6. **Keep the deposit small.** Ontario recommends a down payment of no more than 10%, and never paying in full before the work is done.

Permits are your job unless the contract says otherwise. “It’s your responsibility to get building permits and meet any legal requirements you’ll need to renovate,” says the [Ontario home renovation rights guide](https://www.ontario.ca/page/your-rights-when-starting-home-renovations-or-repairs).

If the job is a lower level, compare [basement renovation quotes in Mississauga](https://www.prohousemaintenance.com/services/basement-renovation/ontario/mississauga/). For small fixes, see [the best handymen in Mississauga](https://www.prohousemaintenance.com/best/handymen/mississauga/).

## How did we rank these Mississauga general contractors?

We ranked Mississauga general contractors on public data, and no firm paid for a spot. Our Google Maps searches for Mississauga found 120 businesses, and of those, 58 had a general contractor, construction or remodeler listing, and 51 had a website in Mississauga. Just 26 held 4.5 stars from 10 or more reviews.

**How we narrowed 120 Mississauga general contractors to 7 (data checked October 18, 2026)**

| Step | Businesses remaining |
| --- | --- |
| Found on Google Maps | 120 |
| Primary Google category is a general contractor | 58 |
| Open, with a website of its own | 51 |
| In Mississauga (by address or Google map pin) | 51 |
| 4.5+ stars from 10+ Google reviews | 26 |
| Website readable when checked | 25 |
| Listed on this page (top ranked) | 7 |

Our filter left out demolition, digging, decor, vinyl wrap and one-trade firms. We then dropped one site we could not read, leaving 25 that could rank.

The score blends each rating with its review count, so a 5.0 from 76 reviews ranks above a 5.0 from 24. We checked every fact on October 18, 2026, and we recheck every 90 days. See an error? [Tell our editors about it](https://www.prohousemaintenance.com/contact/) and we will review it.

## What do Mississauga homeowners ask before they hire a general contractor?

Mississauga homeowners ask what a general contractor charges, which licences and permits apply and how to compare local firms. These answers draw on the General West Contractors price guide, City of Mississauga permit fees and our own Mississauga research. Each answer stands alone, so go straight to your question.

### How much does a general contractor cost in Mississauga?

General West Contractors says a GTA general contractor's fee is typically 15% to 25% of hard costs in 2026. A focused single-room renovation runs $50,000 to $110,000, and a full gut or mid-size addition runs $220,000 to $400,000 in CAD. Additions run $300 to $550 per square foot in its guide.

### Do general contractors need a licence in Mississauga?

Mississauga lists building renovation among its trade licences, next to plumbing, heating and drain laying. Ask the firm for its city licence and WSIB clearance before you sign. Electrical work also needs an ESA-licensed contractor, and gas work needs a TSSA-registered fuels contractor.

### How much is a building permit for an addition in Mississauga?

Mississauga's 2026 fee schedule charges $13.96 per square metre of floor area for a residential addition and $12.25 for an unheated one. Residential permits cost at least $244. A 50 square metre rear addition works out to about $698 in permit fees, before drawings and engineering.

### How many good general contractors are there in Mississauga?

By our count, 26 Mississauga general contractors met our bar. Our searches found 120 businesses, and 58 had a general contractor, construction company or remodeler Google listing. Of those, 51 had a website in Mississauga, and 26 held 4.5 stars from 10 or more reviews. After a site check, 25 could rank.

### Is Pro House Maintenance free for Mississauga homeowners?

Yes. Pro House Maintenance is free for homeowners. You describe your renovation once, and we match you with several pros who have passed WSIB, insurance, reference and background checks. You compare their written quotes and choose who to hire, and our satisfaction guarantee backs the work.

## Where can you find general contractors near Mississauga?

The closest general contractors lists to Mississauga cover Oakville (14 km away), Brampton (18 km away) and Milton (20 km away). Each list follows the same method: 4.5-star Google ratings from 10 or more reviews, official registry checks where Ontario requires a licence, and free vetted matching from Pro House Maintenance at number one.

- [Best general contractors in Oakville](https://www.prohousemaintenance.com/best/general-contractors/oakville/) (14 km from Mississauga)
- [Best general contractors in Brampton](https://www.prohousemaintenance.com/best/general-contractors/brampton/) (18 km from Mississauga)
- [Best general contractors in Milton](https://www.prohousemaintenance.com/best/general-contractors/milton/) (20 km from Mississauga)
- [Best roofing companies in Mississauga](https://www.prohousemaintenance.com/best/roofing-companies/mississauga/)
- [Best plumbers in Mississauga](https://www.prohousemaintenance.com/best/plumbers/mississauga/)
- [Best electricians in Mississauga](https://www.prohousemaintenance.com/best/electricians/mississauga/)
- [Best HVAC companies in Mississauga](https://www.prohousemaintenance.com/best/hvac-companies/mississauga/)
- [Best kitchen renovation companies in Mississauga](https://www.prohousemaintenance.com/best/kitchen-renovation-companies/mississauga/)
- [Best gutter companies in Mississauga](https://www.prohousemaintenance.com/best/gutter-companies/mississauga/)
- [Best handymen in Mississauga](https://www.prohousemaintenance.com/best/handymen/mississauga/)
- [Compare free home additions quotes in Mississauga](https://www.prohousemaintenance.com/services/home-additions/ontario/mississauga/) from vetted local pros
- [Best general contractors across Ontario](https://www.prohousemaintenance.com/best/general-contractors/), city by city
- [Home Additions statistics and cost data](https://www.prohousemaintenance.com/blog/home-addition-statistics/) from our research team

Sources

1. [General West Contractors, General Contracting Cost Guide (2026)](https://generalwestcontractors.ca/cost-guide/general-contracting)
2. [Capable Group, Home Addition Cost Calculator: Toronto and GTA Prices (2026)](https://capablegroupinc.ca/home-addition-cost-calculator/)
3. [City of Mississauga, Building By-law Schedule B: 2026 Classes of Permits and Fees](https://www.mississauga.ca/wp-content/uploads/2026/03/03153640/Schedule-B-2026-Classes-of-Permits-and-Fees.pdf)
4. [City of Mississauga, Trades business licensing](https://www.mississauga.ca/services-and-programs/business/licences-and-permits/trades-business-licensing/)
5. [Government of Ontario, Your rights when starting home renovations or repairs](https://www.ontario.ca/page/your-rights-when-starting-home-renovations-or-repairs)
6. [ESA, Contractor Locator](https://licensing.esasafe.com/contractor-locator-tool/)
7. [WSIB, eClearance lookup](https://clearances.wsib.ca/Clearances/eclearance/start?lang=en)

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_Pro House Maintenance, https://www.prohousemaintenance.com. Markdown rendering of the page above for AI readers._