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Heating & Cooling Hamilton, ON since 1955.

Our #1 priority is customer satisfaction, servicing in all weather.

Serving Your Neighbourhood in Hamilton-Niagara

Here at Lancaster Heating and Cooling, we truly care about our community. Our Hamilton-Niagara based HVAC technicians provide locals with the time, products, and comfort their homes deserve. We try our best to support local charities and associations. Most recently helping to transform a train car into a quiet reading library for kids to enjoy in the north end of Hamilton. Our team donated their time and materials for its heating and cooling.

Call us today for quality HVAC services in Hamilton-Niagara and find out why customers have been coming back to Lancaster Heating and Cooling for over 65 years.

Let Lancaster Heating and Cooling take care of your heating and cooling needs in the greater Hamilton-Niagara area. Contact us today at 905 388 3333.

New Heating and Cooling Systems Installed

The team at Lancaster Heating and Cooling takes pride in being your go-to HVAC system installation company in the greater Hamilton area. As an authorized dealer of Trane and Carrier, we can help you choose the best new system for your home or property.

A Trane air conditioner for home cooling

Trane company logoTrane Air Conditioners

Designed to give you a cooler, happier space, Trane air conditioners allow you to rest comfortably day or night while eliminating the worry about your next utility bill.
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Trane company logoTrane Furnaces

Whether you are looking for a variable-speed gas furnace or single- or two-stage heating, we have you covered with an energy-efficient furnace from Trane.
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A Trane heat pump for home heating and cooling

Trane company logoAir Source Heat Pumps

Heat pumps offer efficiency improvements up to five times that of most current home-heating methods in Canada. Ask our tech experts how a heat pump could work for you.
Carrier air conditioner

carrier company logo

Carrier Air Conditioners

Carrier air conditioners are meticulously designed to keep you cool when summer temperatures climb. Choose from the Infinity, Performance and Comfort Series.
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A carrier furnace for home heating

carrier company logo

Carrier Furnaces

Keep your home warmer, your bills lower, and those cold winter months more enjoyable with a furnace from Carrier. Choose from the Infinity, Performance and Comfort Series.
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carrier company logo

Ductless Units

Ductless heat pump units deliver air into specific areas and are the perfect replacement for in-window air conditioners and space heaters.

New Indoor Air Quality Systems Installed

As an authorized dealer of AprilAire, the #1 manufacturer of Indoor Air Quality products, systems, and technologies, our expert team can help you choose the best new indoor air quality system suited to your needs.

Humidifier products from April Aire

Whole Home Humidifiers

Choose from a selection of AprilAire whole-home humidifiers to help replenish the moisture in your home’s air.
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Dehumidifier products from April Aire

Whole Home Dehumidifiers

Dehumidifiers are a great tool to balance the humidity in your home and fight specific and unique comfort issues.
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Air Purifier products from AprilAire

UV Air Purifiers

AprilAire UV Air Purifiers trap and kill bacteria, viruses, mould spores, allergens and other indoor air pollutants.
Financing is available. Ask us about making it affordable with an easy monthly or biweekly payment plan.
HVAC technician performing planned maintenance on a Hamilton resident's furnace.

Want to save more? Prolong the life of your HVAC system by having it regularly maintained by a qualified professional. Sign up for one of our preventative maintenance service plans and enjoy the cost-saving benefits that go with it!

Service Plans

Hear What Our Customers Have To Say


“This is the second time I have had Lancaster Heating and Cooling install an HVAC item. This time it was a split system. The guys were fantastic and did a great job. Couldn’t ask for a better team. Thank you.” – Jen, Google, October 2024

HVAC technician putting on boot covers to enter a customer's home“We recently had our furnace, AC and hot water heater replaced by the team from Lancaster. I use the word team deliberately, as they worked as a team. From our initial contact with Cassandra to the install group of Pat, Ben and Austin. The installers worked quickly, efficiently and cleanly over the two days it took to remove the old systems and install the new ones. A minor issue was dealt with a couple of days later by Rob. While we were at it, we decided to have the ducts cleaned as well. Would happily recommend this company after this experience.” – Rod Crombie, Google, August 2024

“The team at Lancaster took care of our new furnace, and the service was outstanding. Great job!” – Bryan, Google, March 2025

A Lancaster Duct Cleaning vehicle

Duct Cleaning, Duct Installation & Duct Repair

We have all your needs covered to ensure the air ducts in your home are clean, clear and last a long time.
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Water Heaters

Whether it’s a Storage or Tankless water heater system you prefer, our expert team can help you decide which system best suits your needs for hot water in your home.
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Indoor and Outdoor Fireplaces

Choose from a wide selection of new electric and gas fireplaces to create a memorable focal point for all your indoor and outdoor gatherings.

Expert Commercial HVAC Service for Your Hamilton-Niagara Area Business 

Productivity is key when it comes to running a successful business operation. That’s why having a failure in your commercial HVAC system can be so costly – lost productivity due to heating and cooling issues.

Lancaster Heating and Cooling brings the expert commercial HVAC experience you need to keep your business running smoothly—whether you need maintenance, repair services or new HVAC equipment—we’ve got you covered with our quality HVAC services.

Commercial HVAC Service

Don’t suffer in extreme weather conditions. Our expert technicians are available 24/7 to address any HVAC emergencies.

Reach out for immediate assistance by calling:

(905) 388-3333

Our Partners in Heating and Cooling

Keeping Ahead of COVID-19

Lancaster Heating and Cooling is open for business and following COVID-19 safety measures. Please be assured that our employees are wearing the required PPE and following the suggested safety measures.

Lancaster Heating & Cooling