# 8 Best General Contractors in Ajax (2026)

The 8 best general contractors in Ajax for 2026, ranked on checked Google ratings, with Durham Region reno prices, Ajax permit fees and a checklist.

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

- **Author:** [Elena Porter](https://www.prohousemaintenance.com/authors/elena-porter/), Renovation Writer
- **Published:** 2026-11-04

Google ratings and registry licences checked November 4, 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 Ajax in 2026 are Pro House Maintenance, AKMA Design & Build and Level Q Renovation & Design, then five more top-rated local firms. Our Google Maps searches found 95 businesses for Ajax. Only 14 were Ajax contractors with a website and 4.5 stars from 10 or more reviews. A mid-range Durham Region kitchen runs $40,000 to $70,000 in 2026, one local guide says.

Key takeaways

- Only 14 of the 95 businesses our Ajax general contractor search found met our bar of 4.5 stars from 10 or more reviews.
- AKMA Design & Build leads the Ajax list with a 5.0 Google rating from 66 reviews, the most of any ranked firm.
- Ajax charges $7.16 per square metre to permit a house alteration in 2026, and $14.22 per square metre for a house addition.
- Ramsauer Renovations puts a Durham Region basement at $27,000 to $90,000 or more and a full bathroom at about $10,750 to $22,500.
- Wilworks Renovations, which names Ajax among its project areas, puts a full gut Durham Region kitchen at $65,000 to $110,000 or more.

**The best general contractors in Ajax at a glance (ratings and licences checked Nov 4, 2026)**

| Rank | Company | Best for | Credentials | Google rating | Based in |
| --- | --- | --- | --- | --- | --- |
| 1 | [Pro House Maintenance](https://www.prohousemaintenance.com/best/general-contractors/ajax/#pro-house-maintenance) | Comparing vetted general contractors for free | Every pro: licences, WSIB, insurance, references, background | Not applicable (matching service) | Serves Ajax |
| 2 | [AKMA Design & Build](https://www.prohousemaintenance.com/best/general-contractors/ajax/#akma-design-and-build) | Basements and full-home renovations | Insurance stated (company-stated) | 5.0 (66 reviews) | Ajax |
| 3 | [Level Q Renovation & Design Inc.](https://www.prohousemaintenance.com/best/general-contractors/ajax/#level-q-renovation-and-design-inc) | Design-led kitchen and main-floor remodels | None stated on its website | 5.0 (40 reviews) | Ajax |
| 4 | [Jarvis Contracting](https://www.prohousemaintenance.com/best/general-contractors/ajax/#jarvis-contracting-home-renovation-company) | Home additions | None stated on its website | 5.0 (29 reviews) | Service area only |
| 5 | [Jajio Renovation Inc.](https://www.prohousemaintenance.com/best/general-contractors/ajax/#jajio-renovation-inc) | A long-established renovation crew | Founded 2008 (company-stated) | 4.9 (36 reviews) | Ajax |
| 6 | [Datis Design Build Inc](https://www.prohousemaintenance.com/best/general-contractors/ajax/#datis-design-build-inc) | Kitchen, bathroom and basement packages | None stated on its website | 5.0 (15 reviews) | Ajax |
| 7 | [House of Quayson](https://www.prohousemaintenance.com/best/general-contractors/ajax/#house-of-quayson) | Renovations with interior design | None stated on its website | 5.0 (15 reviews) | Service area only |
| 8 | [Buildara group](https://www.prohousemaintenance.com/best/general-contractors/ajax/#buildara-group) | Larger design-build projects | None stated on its website | 5.0 (11 reviews) | Ajax |

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

The best general contractors in Ajax in 2026 are Pro House Maintenance, AKMA Design & Build and Level Q Renovation & Design. Five more firms round out the top eight. Six of the seven firms we rank hold a 5.0 Google rating, and they have 11 to 66 reviews each.

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

Pro House Maintenance is a free way for Ajax homeowners to compare general contractors. Before any pro joins our network, we check WSIB clearance, liability insurance, references and background. You describe the project once, get several written quotes and pick a pro, backed by our satisfaction guarantee.

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 Ajax](https://www.prohousemaintenance.com/contact/)

## 2. AKMA Design & Build: best for basements and full-home renovations

- Google rating [5.0 from 66 reviews](https://www.google.com/maps/search/?api=1&query=AKMA%20Design%20%26%20Build&query_place_id=ChIJo_r3YWkf1YkR9DvBMuNGRO4) checked Nov 4, 2026
- Based in Ajax
- [Visit the AKMA Design & Build website](https://akmadnb.com/)

AKMA Design & Build has a Rumbellow Crescent address in Ajax and a 5.0 Google rating from 66 reviews. Its site cites “over 200 completed projects across Durham Region.” It lists full home remodels, kitchens, bathrooms, basement finishing and custom home builds, and it names Ajax, Pickering, Whitby and Oshawa as its core area.

- **Strengths:** Its site says its team is licensed and “fully insured,” so ask for the certificate with your quote.
- **Watch-outs:** We found no warranty terms on its site, so ask for the workmanship warranty in writing.
- **Best for:** Finishing a basement or redoing a whole Ajax home under one contract.

## 3. Level Q Renovation & Design Inc.: best for design-led kitchen and main-floor remodels

- Google rating [5.0 from 40 reviews](https://www.google.com/maps/search/?api=1&query=Level%20Q%20Renovation%20%26%20Design%20Inc.&query_place_id=ChIJxeZKdvEf1YkRsyNplNXmHv0) checked Nov 4, 2026
- Based in Ajax
- [Visit the Level Q Renovation & Design Inc. website](http://www.levelq.ca/)

Level Q Renovation & Design has a Harwood Avenue North mailing address in Ajax and a 5.0 Google rating from 40 reviews. Its site calls it “an award winning custom renovation and design firm.” It says it handles kitchens, bathrooms and whole-home renovations, pairing project management with design.

- **Strengths:** Design and construction sit with one firm, which helps when a layout change drives the job.
- **Watch-outs:** Its site does not name the award or list warranty terms, so ask about both before you sign.
- **Best for:** Opening up a kitchen to the rest of the main floor.

## 4. Jarvis Contracting: best for home additions

- Google rating [5.0 from 29 reviews](https://www.google.com/maps/search/?api=1&query=Jarvis%20Contracting%20%7C%20Home%20Renovation%20Company&query_place_id=ChIJUdULbdPf1IkReg1rvPM8o6w) checked Nov 4, 2026
- Based in Service-area business (no public street address)
- [Visit the Jarvis Contracting website](http://jarviscontracting.ca/)

Jarvis Contracting has a 5.0 Google rating from 29 reviews, and Google shows no street address for it. Its site says it builds “home additions & renovations in Ajax and across Durham Region.” James runs construction and his wife runs design, working from one plan.

- **Strengths:** Its site shows whole-storey additions, including a Whitby bungalow taken to two storeys.
- **Watch-outs:** It is a small family practice, so confirm start dates and who supervises your site.
- **Best for:** Adding a second floor or a rear extension to an Ajax home.

## 5. Jajio Renovation Inc.: best for a long-established renovation crew

- Google rating [4.9 from 36 reviews](https://www.google.com/maps/search/?api=1&query=Jajio%20Renovation%20Inc.&query_place_id=ChIJgaEJHHYg1YkRXyVXHv2jo_4) checked Nov 4, 2026
- Founded 2008 company website
- Based in Ajax
- [Visit the Jajio Renovation Inc. website](http://www.jajiorenovation.com/)

Jajio Renovation has a Dakin Drive address in Ajax and a 4.9 Google rating from 36 reviews. Its site says it “has been serving the GTA since 2008, but has been in the construction trade since 1995.” That makes it the longest-running firm on this list by its own account.

- **Strengths:** Nearly two decades of GTA work gives you a long record to check through references.
- **Watch-outs:** Its site is a single page with no service list, warranty or insurance details, so ask for all three.
- **Best for:** A homeowner who wants a contractor with a long local track record.

## 6. Datis Design Build Inc: best for kitchen, bathroom and basement packages

- Google rating [5.0 from 15 reviews](https://www.google.com/maps/search/?api=1&query=Datis%20Design%20Build%20Inc&query_place_id=ChIJSdYj4xnh1IkRMtgT6wdZDu0) checked Nov 4, 2026
- Based in Ajax
- [Visit the Datis Design Build Inc website](http://www.datisgroup.ca/)

Datis Design Build has an Andrea Road address in Ajax and a 5.0 Google rating from 15 reviews. Its site focuses on three rooms: “your perfect kitchen, bathroom or basement.” It cites “11+ Years of Experience” and offers a free video consultation before a site visit.

- **Strengths:** The video consult lets you test fit and scope before booking an in-home visit.
- **Watch-outs:** Its home page headline targets Toronto, so confirm it schedules Ajax jobs with the same crew.
- **Best for:** A kitchen or bathroom remodel with a clear, fixed scope.

## 7. House of Quayson: best for renovations with interior design

- Google rating [5.0 from 15 reviews](https://www.google.com/maps/search/?api=1&query=House%20of%20Quayson&query_place_id=ChIJD77KIs_PgIwRRo3sm8-NQNY) checked Nov 4, 2026
- Based in Service-area business (no public street address)
- [Visit the House of Quayson website](https://www.houseofquayson.com/?utm_source=google&utm_medium=wix_google_business_profile&utm_campaign=17466859783436483489)

House of Quayson has a 5.0 Google rating from 15 reviews, and Google shows no street address for it. Its site covers “home renovation & interior design in Ajax & GTA.” It lists complete home remodels, kitchen upgrades, bathroom renovations, interior design and flooring.

- **Strengths:** It pairs renovation with interior design, which suits jobs where finishes matter most.
- **Watch-outs:** Its site gives no address, warranty or insurance details, so ask for proof of each in writing.
- **Best for:** A room-by-room refresh where you want design help on finishes.

## 8. Buildara group: best for larger design-build projects

- Google rating [5.0 from 11 reviews](https://www.google.com/maps/search/?api=1&query=Buildara%20group&query_place_id=ChIJA7jaFVTpPmoRPImvJV03hlk) checked Nov 4, 2026
- Based in Ajax
- [Visit the Buildara group website](https://www.buildaragroup.ca/)

Buildara Group has a Thorp Crescent address in Ajax and a 5.0 Google rating from 11 reviews. Its site describes “a full-service renovation and construction company with experience across commercial and residential projects.” It lists custom homes, major renovations and home additions.

- **Strengths:** Its commercial work includes restaurants, offices and dealerships, so it is used to managed build schedules.
- **Watch-outs:** It has the fewest reviews here, and its site lists a Toronto address and Vaughan service pages, so confirm it takes Ajax jobs.
- **Best for:** A large addition or full renovation that needs design and build in one firm.

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

A mid-range Durham Region kitchen costs $40,000 to $70,000 in 2026, says Wilworks Renovations, a firm not ranked here that names Ajax among its project areas. Ramsauer Renovations, an Oshawa firm, puts a full bathroom at about $10,750 to $22,500 and a basement at $27,000 to $90,000 or more. Most general contractors build their fee into those totals.

**Ajax and Durham Region renovation costs (2026, CAD)**

| Job | Typical cost (CAD) | Source |
| --- | --- | --- |
| Kitchen refresh (doors, fronts, counters) | $15,000 to $30,000 | [Wilworks Renovations](https://wilworksreno.com/kitchen-renovation-cost-durham-region/) |
| Kitchen, mid-range | $40,000 to $70,000 | [Wilworks Renovations](https://wilworksreno.com/kitchen-renovation-cost-durham-region/) |
| Kitchen, full gut | $65,000 to $110,000+ | [Wilworks Renovations](https://wilworksreno.com/kitchen-renovation-cost-durham-region/) |
| Full bathroom | About $10,750 to $22,500 | [Ramsauer Renovations](https://www.ramsauerreno.ca/guides/renovation-cost-guide/) |
| Finished basement | $27,000 to $90,000+ | [Ramsauer Renovations](https://www.ramsauerreno.ca/guides/renovation-cost-guide/) |
| Ajax house alteration permit | $7.16 per m² | [Town of Ajax](https://ajax.ca/wp-content/uploads/2026/07/Building-By-law-48-2023-Sch_A-Jan-01-2026.pdf) |
| Ajax house or addition permit | $14.22 per m² | [Town of Ajax](https://ajax.ca/wp-content/uploads/2026/07/Building-By-law-48-2023-Sch_A-Jan-01-2026.pdf) |

Scope drives the price more than the permit does. Wilworks says layout changes, such as moving a drain or gas line, are the single biggest kitchen cost driver, and it suggests a 10 to 15 percent contingency. Ramsauer puts a legal basement apartment example at $90,000 to $120,000, and decks and fences from about $4,500.

Our [general contractor cost guide](https://www.prohousemaintenance.com/blog/general-contractor-cost/) breaks fees and markups down, and the [general contractor statistics](https://www.prohousemaintenance.com/blog/general-contractor-statistics/) cover Ontario job data. Planning more space? [Get free home addition quotes in Ajax](https://www.prohousemaintenance.com/services/home-additions/ontario/ajax/) from screened pros.

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

To choose an Ajax general contractor, check its WSIB clearance and liability cover. Ask who pulls each permit, then compare written quotes for the same scope. 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. **Ask about city licences and permits.** Ask Ajax whether the job needs a municipal licence or building permit before work starts.
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.

Ajax adds 25% to the permit fee if work starts after you apply, and 50% if work starts before any application. Name the permit holder in the contract. Ontario also says, “The final price for all goods and services cannot be more than 10% over the original estimate unless you have agreed to new work or a new price.”

Doing the lower level? Our [basement finishing cost guide](https://www.prohousemaintenance.com/blog/basement-finishing-cost/) has Ontario prices, or compare [basement renovation quotes in Ajax](https://www.prohousemaintenance.com/services/basement-renovation/ontario/ajax/). Next door, see the [best general contractors in Pickering](https://www.prohousemaintenance.com/best/general-contractors/pickering/), the [best general contractors in Whitby](https://www.prohousemaintenance.com/best/general-contractors/whitby/) and the [top Oshawa general contractors](https://www.prohousemaintenance.com/best/general-contractors/oshawa/).

## How did we rank these Ajax general contractors?

We ranked these firms on public data, and no firm paid for a spot. Our Google Maps searches for Ajax found 95 businesses. Of those, 42 had a builder or contractor listing, and 32 had a website and an Ajax base. Just 14 held 4.5 stars from 10 or more reviews.

**How we narrowed 95 Ajax general contractors to 7 (data checked November 4, 2026)**

| Step | Businesses remaining |
| --- | --- |
| Found on Google Maps | 95 |
| Primary Google category is a general contractor | 42 |
| Open, with a website of its own | 32 |
| In Ajax (by address or Google map pin) | 32 |
| 4.5+ stars from 10+ Google reviews | 14 |
| Website readable when checked | 11 |
| Listed on this page (top ranked) | 7 |

We then read each site. Two sites would not load and one firm does soft washing, so 11 could rank. None matched a licence record in our check, so we make no licence claims. WSIB and insurance proof are the key checks for an Ajax renovation.

The score blends each rating with its review count, so a 5.0 from 66 reviews ranks above a 5.0 from 15. We checked every fact on November 4, 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 Ajax homeowners ask before they hire a general contractor?

Ajax homeowners ask what a renovation costs, what a permit costs and how to compare local contractors. These answers draw on two 2026 Durham Region price guides, the Town of Ajax 2026 permit fee schedule and Ontario consumer rules. Each answer stands alone, so go straight to your question.

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

It depends on scope. Ramsauer Renovations puts a Durham Region kitchen at about $13,500 to $40,500 and a full bathroom at about $10,750 to $22,500 in 2026. Wilworks Renovations, which lists Ajax among its project areas, puts a mid-range kitchen at $40,000 to $70,000. Compare full written quotes for the same scope.

### How much is a renovation permit in Ajax?

The Town of Ajax 2026 fee schedule charges $7.16 per square metre for a house alteration and $14.22 per square metre for a new house or addition. An accessory dwelling unit is $9.68 per square metre, and an unenclosed deck or porch is a flat $146. The minimum fee for a minor permit is $146.

### What happens if work starts in Ajax before the permit?

Ajax adds a surcharge. Under its 2026 fee schedule, the Town charges 25% of the permit fee if construction has begun after an application is in, and 50% if construction has begun with no application at all. Ask your contractor to name the permit holder in the contract.

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

By our count, 11 Ajax general contractors met our bar. Our searches found 95 businesses. Of those, 42 had a contractor listing, 32 had a website and an Ajax base, and 14 held 4.5 stars from 10 or more reviews. Two sites would not load and one firm does soft washing, so 11 could rank.

### Is Pro House Maintenance free for Ajax 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 Ajax?

The closest general contractors lists to Ajax cover Pickering (5 km away), Whitby (8 km away) and Oshawa (13 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 Pickering](https://www.prohousemaintenance.com/best/general-contractors/pickering/) (5 km from Ajax)
- [Best general contractors in Whitby](https://www.prohousemaintenance.com/best/general-contractors/whitby/) (8 km from Ajax)
- [Best general contractors in Oshawa](https://www.prohousemaintenance.com/best/general-contractors/oshawa/) (13 km from Ajax)
- [Compare free home additions quotes in Ajax](https://www.prohousemaintenance.com/services/home-additions/ontario/ajax/) 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. [Ramsauer Renovations, Renovation Cost Guide, Durham Region (2026)](https://www.ramsauerreno.ca/guides/renovation-cost-guide/)
2. [Wilworks Renovations, Kitchen Renovation Cost in Durham Region (2026)](https://wilworksreno.com/kitchen-renovation-cost-durham-region/)
3. [Town of Ajax, Schedule A to Building By-law 48-2023, Permit Fees (January 1, 2026)](https://ajax.ca/wp-content/uploads/2026/07/Building-By-law-48-2023-Sch_A-Jan-01-2026.pdf)
4. [Government of Ontario, Your rights when starting home renovations or repairs](https://www.ontario.ca/page/your-rights-when-starting-home-renovations-or-repairs)
5. [WSIB, eClearance lookup](https://clearances.wsib.ca/Clearances/eclearance/start?lang=en)

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