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Dundas Mechanical (Dundas Mechanical Inc)

Heating · Cooling · Refrigeration

Comfort in Control

Heating, cooling and refrigeration repairs and installations for homes, businesses and farms. Serving the Dundas area for more than 20 years.

About

Dundas Mechanical

Dundas Mechanical repairs and installs heating, cooling and refrigeration equipment in homes and commercial buildings, and looks after refrigeration systems for farms and businesses. We keep the heat on through the winter and the cooling running through the summer.

Call us for an emergency repair, day or night, or to plan an upgrade to high-efficiency equipment. We look after the heating, cooling and refrigeration so you can get on with running your home or your business.

I have been in the HVAC service industry for over 20 years. I enjoy repairing & installing HVAC & Mechanical Systems and have the equipment operate again, knowing that I made a difference. This also applies to Clients that have a furnace or AC system not working and they need my help so they can be comfortable in their own space.

I believe that a fair price for services offered is what my Clients want. I have built up my Customer base by making them happy “One Customer at a Time, and I will do what it takes to achieve this GOAL”.

No job is too small or too large, ONE CALL DOES IT ALL. Call me and I will provide you with the right services for your needs at a Reasonable Cost.

— Thomas Racz, Dundas Mechanical

Our Services

Repairs, installation and gas lines

From a home furnace to a commercial refrigeration system, we repair it, install it and connect the gas to it.

A refrigeration rack with gauges and valves, photographed by Dundas Mechanical (Instagram, March 2026)

Repairs

We repair furnaces, air conditioners, heat pumps, refrigerators and refrigeration systems, gas lines and tankless water heaters. When something fails after hours, our team is on call for emergency repairs.

A crane lifting a rooftop unit onto a brick building, photographed by Dundas Mechanical (Instagram, January 2025)

Installation

We install high-efficiency heating, cooling and refrigeration systems in homes and businesses, including HVAC units, radiant heaters, tankless water heaters and the gas lines that supply them. Efficient equipment burns less fuel for the same comfort, so it costs less to run.

Black iron gas piping with a shutoff valve and a flexible appliance connector (representative image)

Gas lines

Gas work is where a mistake is dangerous, so ours is done by certified technicians. We run new gas lines and connect furnaces, water heaters, pool heaters and other new appliances to them.

A gas furnace in a basement with its black iron gas line and metal venting (representative image)

What we install

New installations

We install new equipment in homes and commercial buildings, including:

  • Furnaces
  • Air conditioners
  • Heat pumps
  • Ductless mini-split air conditioners
  • Water heaters
  • Tankless (on-demand) water heaters
  • Gas pool heaters
  • Exhaust fans
  • Refrigeration systems
  • Gas lines and connections to new appliances

Who we serve

Residential, commercial and agriculture

An air-conditioning condenser installed beside a house by Dundas Mechanical (Instagram, January 2025)

Residential

Furnaces, air conditioners, heat pumps and water heaters repaired and installed, so your house stays warm in January and cool in July.

Heat pump outdoor units on stands beside a commercial building, installed by Dundas Mechanical (Instagram, January 2025)

Commercial

Heating, cooling and refrigeration for commercial buildings, from rooftop units to refrigeration systems. A failed cooler or rooftop unit costs a business money every hour it is down, which is why we take emergency calls around the clock.

A refrigeration installation in progress inside an arch-roof building, photographed by Dundas Mechanical (Instagram, January 2025)

Agriculture

Refrigeration and climate control for farm buildings, including refrigeration systems and exhaust fans. If a system fails, the emergency line is open 24/7.

A snow-covered house at night with one lit window and vapour from the furnace vent (representative image)

24/7 Emergency

On call after hours

A furnace that quits on a January night, or a cooler that fails on a Saturday, cannot wait until Monday. Our team is on call after hours for emergency repairs. Call any time, day or night.

Get in touch

Contact Us

(289) 768-866024/7 Emergency · Non-Emergency

dundasmechanical@gmail.com

1481 Old Hwy 99Dundas, ON L9H 5E3

Send a message

Tell us what the equipment is and what it is doing, and we will get back to you. For an emergency, call (289) 768-8660.