HVAC Technicians in Hamilton

Browse 56 HVAC technicians in Hamilton, Ontario.

AirPro Heating & Cooling

Hamilton, ON

5(142 reviews)

AirTemp HVAC Furnace and Air Conditioner of Hamilton

Hamilton, ON

5(165 reviews)

Bill Welmers & Sons Heating & Air Conditioning Inc

Hamilton, ON

5(5 reviews)

D.A.D. HVAC

Hamilton, ON

5(55 reviews)

DHEM Heating & Cooling

Hamilton, ON

5(15 reviews)

Dynamic Heating & Cooling

Hamilton, ON

5(751 reviews)

Express Heating and Cooling

Hamilton, ON

5(49 reviews)

Four Seasons Heating and Cooling

Hamilton, ON

5(3 reviews)

Hamilton HVAC Inc

Hamilton, ON

5(2 reviews)

J C Heating & Cooling

Hamilton, ON

5(2 reviews)

LLPP HVAC

Hamilton, ON

5(15 reviews)

MDM Mechanical

Hamilton, ON

5(130 reviews)

Meadowlands Heating and Cooling

Hamilton, ON

5(27 reviews)

MY HVAC Guy

Hamilton, ON

5(66 reviews)

PRO Wave Solutions Inc.

Hamilton, ON

5(45 reviews)

Rosati HVAC

Hamilton, ON

5(7 reviews)

Smith Heating & Cooling

Hamilton, ON

5(78 reviews)

Super Air Heating & Cooling

Hamilton, ON

5(82 reviews)

Superior HVAC Service, Heating & Air Conditioning

Hamilton, ON

5(75 reviews)

Advanced Mechanical

Hamilton, ON

4.9(41 reviews)

Family HVAC Inc

Hamilton, ON

4.9(143 reviews)

Gas Fitter Complete HVAC Service Inc.

Hamilton, ON

4.9(69 reviews)

Mt. Hope Heating and Cooling Ltd.

Hamilton, ON

4.9(80 reviews)

Nik Heating N Cooling

Hamilton, ON

4.9(58 reviews)

Spurr Heating & Air Conditioning

Hamilton, ON

4.9(1192 reviews)

A Plus Air Systems

Hamilton, ON

4.8(262 reviews)

Bullet Proof Heating & Cooling

Hamilton, ON

4.8(117 reviews)

Dr. Furnace Heating & Cooling

Hamilton, ON

4.8(33 reviews)

Guest Plumbing & HVAC Ancaster & Hamilton- Commercial & Residential Services

Hamilton, ON

4.8(459 reviews)

HAMCO Heating and Cooling Ltd.

Hamilton, ON

4.8(648 reviews)

Hamilton Heating and Cooling

Hamilton, ON

4.8(18 reviews)

Hamilton Home Comfort

Hamilton, ON

4.8(364 reviews)

Lancaster Heating & Cooling

Hamilton, ON

4.8(206 reviews)

Shipton's Heating & Cooling Ltd

Hamilton, ON

4.8(2251 reviews)

Adam's Air Systems - Heating and Air Conditioning

Hamilton, ON

4.7(175 reviews)

Aire One West Heating & Cooling

Hamilton, ON

4.7(731 reviews)

B & G Heating & Cooling

Hamilton, ON

4.7(64 reviews)

Boonstra Heating and Air Conditioning

Hamilton, ON

4.7(4671 reviews)

Bosanac Heating & Electric Ltd

Hamilton, ON

4.7(205 reviews)

Elevate HVAC

Hamilton, ON

4.7(38 reviews)

Fox Refrigeration & HVAC

Hamilton, ON

4.7(60 reviews)

Archie Horn & Son

Hamilton, ON

4.6(302 reviews)

Canadian Heating and Air Conditioning Inc.

Hamilton, ON

4.6(270 reviews)

Scott Refrigeration H V A C Ltd

Hamilton, ON

4.6(9 reviews)

Johnstone Supply

Hamilton, ON

4.5(13 reviews)

Protech Inc

Hamilton, ON

4.4(13 reviews)

Wilson Air Ltd

Hamilton, ON

4.4(50 reviews)

All Mechanical HVAC/R

Hamilton, ON

4.3(23 reviews)

Dr HVAC Hamilton

Hamilton, ON

4.2(5 reviews)

Langton Mechanical

Hamilton, ON

4.2(39 reviews)

Ashland Heating And Air Conditioning Inc

Hamilton, ON

4(25 reviews)

Burloak Heating and Air Conditioning

Hamilton, ON

3.7(12 reviews)

Heating & Cooling Hamilton

Hamilton, ON

3.3(11 reviews)

All weather heating and cooling

Hamilton, ON

Maple Air - Heating, Cooling & Electrical

Hamilton, ON

Shipton's Heating & Cooling Stoney Creek

Hamilton, ON

Frequently Asked Questions

When should I service my furnace?

Most manufacturers recommend an annual tune-up before the heating season — late summer or early fall in most of Canada. A licensed technician will inspect the heat exchanger, clean the burners, check gas pressure, and replace the filter.

How much does HVAC installation cost in Hamilton?

Costs vary widely by system, home size, and province. A new central AC typically runs from a few thousand dollars; a high-efficiency furnace or cold-climate heat pump is more. Ask a licensed technician for a written quote that includes equipment, labour, permits, and any rebate processing.

Should I repair or replace my old air conditioner?

If your AC is 12+ years old, uses R-22 refrigerant, or the repair quote is more than half the cost of replacement, replacement is usually the better long-term value. A licensed technician can run a load calculation and quote both options.

What's the difference between SEER and AFUE ratings?

SEER (Seasonal Energy Efficiency Ratio) measures cooling efficiency for AC and heat pumps — higher is better. AFUE (Annual Fuel Utilization Efficiency) measures heating efficiency for gas, oil, and propane furnaces, expressed as a percentage. Higher AFUE means more of your fuel becomes heat.

Do HVAC technicians need to be licensed in my province?

Yes — gas work in particular is regulated everywhere in Canada. Always ask for a gas-fitter ticket (G2 or G1 in Ontario, equivalent elsewhere), refrigerant handling certification (ODP card), and proof of insurance before any work begins.

How often should I change my furnace filter?

Standard 1-inch filters: every 1–3 months during heating and cooling season. Thicker 4-inch or 5-inch media filters: every 6–12 months. If you have pets or allergies, change more often. A clogged filter wastes energy and stresses the blower motor.

What is a heat pump and is it right for my climate?

A heat pump is an electric system that moves heat instead of generating it — providing both heating and cooling. Modern cold-climate heat pumps work efficiently down to -25°C, making them viable across most of Canada. Many provinces and the federal Greener Homes program offer rebates.

How long does an HVAC system typically last?

Furnaces: 15–20 years. Central AC: 12–15 years. Heat pumps: 12–15 years. Ductwork: 30+ years if properly sealed. Annual maintenance extends life on every component. Replace before failure to avoid emergency-rate pricing.