Hamilton, ON

Find the Best Contractors in Hamilton

Discover top-rated home service professionals in Hamilton, Ontario. Browse 200 verified contractors for roofing, HVAC, plumbing, and more.

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Hamilton, ON

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Top Contractors in Hamilton, ON

Showing 1-20 of 200 contractors

St. Aubin Morrison Refrigeration

St. Aubin Morrison Refrigeration

STN MAIN, Caledonia, ON L8W 3K4

5(12 reviews)

"these guys came and repaired it in one day for a fraction of the cost."

HVAC
Hours
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J C Heating & Cooling

J C Heating & Cooling

108 Colin Crescent, Hamilton, ON L9A 5H8

5(2 reviews)

"We ended up going with the duct cleaning as well and could not be happier."

HVAC
Hours
JDS Mechanical

JDS Mechanical

112 Prince George Ave, Hamilton, ON L9C 3E2

5(3 reviews)

"Great service and reasonable cost"

HVAC
Hours
KANATA HVAC

KANATA HVAC

Hamilton, ON

5(11 reviews)

"They were professional, reliable, and very knowledgeable."

HVAC
Hours
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Madek Mechanical

Madek Mechanical

Hamilton, ON

5(85 reviews)

"Excellent AC install - courteous, professional and prompt service."

HVAC
Hours
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Harley Air

Harley Air

735 Glancaster Rd, Mount Hope, ON L0R 1W0

5(115 reviews)

"John came and fixed the problem l had had for two days in freezing cold."

HVAC
Hours
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Morgans Metal & HVAC

Morgans Metal & HVAC

Hamilton, ON

5(18 reviews)

"Jeff was very professional, prompt, courteous, knowledgeable, and efficient."

HVAC
Hours
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Repairus Commercial Refrigeration Services Hamilton Inc

Repairus Commercial Refrigeration Services Hamilton Inc

1053 Barton St E, Hamilton, ON L8L 3E2

5(6 reviews)

"Excellent service!!!"

HVACInsulation
Hours
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Celsius Heating & Cooling Inc.

Celsius Heating & Cooling Inc.

Hamilton, ON

5(16 reviews)

"Professional work done on time, at a great price."

HVAC
Hours
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Haven Heating and Cooling Ltd.

Haven Heating and Cooling Ltd.

Hamilton, ON

5(59 reviews)

"They replaced my furnace on a tight timeline for a fair price."

HVAC
Hours
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All Season Mechanical Services

All Season Mechanical Services

Hamilton, ON

5(29 reviews)

"They diagnosed the problem right away and repaired my furnace fast."

HVAC
Hours
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"Quality work at an affordable price was great to have these days."

Windows
Hours
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Air Joy Duct Cleaning

Air Joy Duct Cleaning

Hamilton, ON

5(22 reviews)

"Service was great, efficient and very affordable."

HVAC
Hours
Jonspainting

Jonspainting

25 Shadyglen Dr, Stoney Creek, ON L8J 3W7

5(33 reviews)

"We had Jon’s painting crew at our home for a week!"

Painting
Hours
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Absolute HVAC & Diversions

Absolute HVAC & Diversions

Hamilton, ON

5(5 reviews)
HVAC
Hours
Expert Exteriors

Expert Exteriors

Hamilton, ON

5(6 reviews)

"And he did it at a great price."

Siding
Hours
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Iron Air Home Comfort

Iron Air Home Comfort

Hamilton, ON

5(14 reviews)

"Very prompt , and professional and knowledgeable , best prices around !"

HVAC
Hours
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PRO Wave Solutions Inc.

PRO Wave Solutions Inc.

329 Fennell Ave E, Hamilton, ON L9A 1T5

5(44 reviews)

"Jaime did an excellent job installing new ductwork in our century home."

HVAC
Hours
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QEW Windows & Doors

QEW Windows & Doors

Hamilton, ON

5(4 reviews)

"What really made QEW stand out, however, was their pricing;"

Windows
Hours
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Sunly Energy

Sunly Energy

21 King St W 5th floor unit a, Hamilton, ON L8P 4W7

5(6 reviews)

"The install was very clean and I am very happy with it."

Solar
Hours
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Top Rated Contractors 2026

Hamilton, ON

Every contractor shown for Hamilton, Ontario is listed with the rating and review count from its public Google Business Profile, so you can compare local professionals on the same basis. Businesses marked as claimed have confirmed their own details, which is not the same as a licence or insurance check. Confirm licensing and insurance directly, then request at least three written estimates before you hire in Hamilton.

Frequently Asked Questions

Common questions about finding contractors in Hamilton

Prices in Hamilton depend on the trade, the size and complexity of the job, and the materials you choose. Small repairs often start in the low hundreds of dollars, while full replacements such as a roof, HVAC system, or kitchen can run from several thousand dollars upward. Request at least three written estimates for the same scope so you can compare local pricing fairly.

Start with the listings on this page, then confirm the licence directly with the licensing board that covers Ontario. Requirements vary by trade: some states license general contractors, while others license only electrical, plumbing, and HVAC work. Ask for the licence number and verify it yourself before signing anything.

Most listings in Hamilton are aggregated from public business data, including the Google Business Profile rating and review count shown on each page, and are not individually inspected by us. A listing marked as claimed simply means the owner has confirmed control of the business record; it is not a licence or insurance check. Always verify licensing, insurance, and references before you hire.

Costs in Ontario depend heavily on the trade and the project. Labour rates vary by region, licensed trades such as electrical and plumbing usually cost more per hour than general labour, and emergency or after-hours work carries a premium. Statewide averages are only a starting point; get itemized quotes from local contractors for your exact scope.

Permit rules are set by the local authority that covers Hamilton. Structural work, additions, and most electrical, plumbing, HVAC, and roofing replacements require a permit, while some cosmetic work does not. Ask who is pulling the permit and confirm it is issued in the correct name before work starts, because unpermitted work can complicate resale and insurance.

A deposit of roughly 10-30% of the contract price to cover materials is common in Hamilton, with the balance tied to milestones in a written contract. Be cautious of anyone demanding full payment up front, large cash-only payments, or payment before the work is scheduled. A written payment schedule protects both sides.

Compare quotes on the same written scope of work, not on the bottom line alone. Check that each quote lists materials and brands, labour, permits, cleanup, and exclusions, and ask how change orders are priced. A bid that is far below the others usually means something has been left out.

A contractor contract in Ontario should state the full scope, materials, total price and payment schedule, estimated start and completion dates, the licence number, how changes will be approved and priced, the warranty, and who handles permits and cleanup. Read it before signing and keep a copy.

Timelines in Hamilton vary widely by trade and scope, from a same-day repair to several months for a major remodel. Weather, permit queues, and material lead times all affect the schedule. Ask each contractor for a written timeline and confirm how they handle weather or inspection delays.

Read the Google review excerpts shown on each listing for patterns rather than judging only by the star average. Also check the state or provincial licensing board for complaints, ask the contractor for recent local references, and confirm they carry insurance. A single bad review matters less than a consistent theme.

Pricing in Hamilton reflects local labour rates, cost of living, demand, and how far crews have to travel. Dense metro areas and high-cost regions usually run above the state average, while smaller markets can be below it. The only accurate comparison is like-for-like quotes from contractors who work in Hamilton.

Document everything in writing first, including photos, dates, and the contract. Ask the contractor to fix the issue under the warranty, and if they refuse, file a complaint with the Ontario licensing board or consumer-protection office. You can also contact us so we can review the listing associated with that business.