Contract Rating

General Contractors in Waterloo Region

19 general contractors serving Waterloo Region, ranked by Google rating weighted for review volume. No business can pay to rank higher.

Based in Kitchener, North Dumfries, Waterloo, working across the region.

Ratings retrieved from Google just now.

Businesses listed: 19
Average rating: 4.93
Google reviews behind them: 678

19 businesses listed

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GWC General Contractors Ltd

General ContractorKitchener, ON

103 Google reviews

Phone listedWebsiteHours published

Top Level Construction Inc

General ContractorWaterloo, ON

79 Google reviews

Phone listedWebsiteHours published

Covach Bros Inc

General ContractorKitchener, ON

64 Google reviews

Phone listedWebsiteHours published

Eagleview Construction

General ContractorKitchener, ON

55 Google reviews

Phone listedWebsiteHours published

All-In Contracting

General ContractorKitchener, ON

39 Google reviews

Phone listedWebsiteHours published

Gluzman Contractors

General ContractorKitchener, ON

39 Google reviews

Phone listedWebsiteHours published

King Street Construction

General ContractorKitchener, ON

34 Google reviews

Phone listedWebsiteHours published

SMART HOME MECHANICAL & RENOVATIONS

General ContractorWaterloo, ON

37 Google reviews

Phone listedWebsiteHours published

Custom Contracting Group

General ContractorWaterloo, ON

33 Google reviews

Phone listedWebsiteHours published

Borman Construction Renovation Contractors

General ContractorWaterloo, ON

29 Google reviews

Phone listedWebsiteHours published

Executive Contracting

General ContractorWaterloo, ON

26 Google reviews

Phone listedWebsiteHours published

Duane Erb Construction Inc

General ContractorWaterloo, ON

28 Google reviews

Phone listedWebsiteHours published

Superior Finish Contracting

General ContractorKitchener, ON

25 Google reviews

Phone listedWebsiteHours published

Blossom Hills Construction

General ContractorKitchener, ON

29 Google reviews

Phone listedWebsiteHours published

Caryndale Contracting Inc.

General ContractorNorth Dumfries, ON

19 Google reviews

Phone listedWebsiteHours published

Sonnarc Homes Ltd.

General ContractorWaterloo, ON

17 Google reviews

Phone listedWebsiteHours published

Menno S Martin Contractor Limited

General ContractorWaterloo, ON

13 Google reviews

Phone listedWebsiteHours published

Prestige Home Construction

General ContractorWaterloo, ON

5 Google reviews

Phone listedHours published

ZHACO General Contracting

General ContractorWaterloo, ON

4 Google reviews

Phone listedWebsiteHours published

Hiring a general contractor in Ontario

No provincial licence exists for general contracting on existing homes. New home construction is different - those builders must be HCRA licensed.

Typical costs

GC fee as a percentage of project cost: 10% – 20%
Cost plus a fixed management fee: $5,000 – $30,000
Project management only, no trades supplied: 6% – 12%
Design-build, including drawings: 15% – 25%

Full hiring guide

Working in this area

Two-tier municipal structure
Building permits come from the City, while some servicing and road-related approvals sit with the Region. Confirm who is issuing what.
Century homes downtown
Older core neighbourhoods carry the usual pre-war issues: original wiring, plaster walls, limited insulation.

More about hiring in Waterloo

Why a region, not just your town

Contractors work across municipal boundaries. Listing only businesses registered in one town would hide plenty that serve it. How we rank these.

What general contracting work costs in Ontario

GC compensation comes in three shapes and they behave very differently when things change. Fixed price puts the risk on the contractor and is the simplest for you. Cost plus a percentage rewards the contractor for spending more, which is worth being aware of. Cost plus a fixed fee removes that incentive and is often the fairest structure on projects where the scope genuinely cannot be pinned down in advance.

Job	Typical range
GC fee as a percentage of project costLower on large projects, higher on small or complex ones.	10% – 20%
Cost plus a fixed management feeCommon on renovations where the scope is uncertain at the outset.	$5,000 – $30,000
Project management only, no trades suppliedYou hold the trade contracts; the GC coordinates them.	6% – 12%
Design-build, including drawingsBundles design and construction under one contract and one point of accountability.	15% – 25%

Planning estimates for Ontario, not quotes. Always get written quotes against the same written specification.

Questions to ask before you hire

Is this fixed price, cost plus percentage, or cost plus fixed fee - and what is the fee calculated on?
Will you pull the permits in your company name?
Which trades are your own crews and which are subcontracted?
Do you collect WSIB clearance certificates from your subcontractors?
How many active projects will you be running while mine is open, and who is my day-to-day contact?
What is your change order process, and will nothing proceed without my written approval?
What happens to my deposit and my project if you become insolvent mid-job?
Can I see a project of similar size and speak to that homeowner?

Warning signs

Reluctance to explain the fee structure plainly.
Cost plus percentage with no cap and no budget.
A GC who wants the permit in your name.
No named site supervisor.