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A Lancaster technician servicing a furnace

HVAC Service · Niagara

Professional HVAC Service in St Catharines

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Look no further than Lancaster Heating and Cooling for prompt, reliable, professional, and trustworthy HVAC service in St. Catharines. Whether you live in Port Dalhousie, Old Glenridge, Merritton, Western Hill, Grapeview, Martindale Heights, or the North End, we provide a full range of HVAC services to residential and commercial clients in your neighbourhood.

Our licensed technicians handle repairs, replacements and routine maintenance across St. Catharines, with 24/7 emergency service when something can’t wait. Book a service call or request a free quote.

A Lancaster technician servicing a furnace

Heating and cooling in St. Catharines homes

St. Catharines, the Garden City, has a mature housing stock: according to the 2021 Census, about 71% of homes were built before 1981 and almost a third before 1961. Lake-moderated winters and humid summers shape what works best here.

  • Older homes in Merritton, Downtown and Port Dalhousie: we upgrade old boilers, chimney-vented furnaces and water heaters to high-efficiency, PVC-vented equipment.
  • Mild-winter advantage: lake-moderated winters make a heat pump or hybrid system very effective here, and they qualify for rebates.
  • Humid summers: right-sized air conditioning and a whole-home dehumidifier keep homes comfortable.

Local service

HVAC service across St. Catharines

We serve homes and businesses across St. Catharines, including:

  • Downtown
  • Port Dalhousie
  • Merritton
  • Grantham
  • Western Hill
  • Glenridge
  • Martindale
  • Power Glen
  • Vansickle
  • North End
  • Port Weller
  • Secord Woods
  • Oakdale
  • Burleigh Hill

HVAC services in St. Catharines

Postal codes
L2M, L2N, L2P, L2R, L2S, L2T, L2W
Electricity
Alectra Utilities
Natural gas
Enbridge Gas
From our office
About 54 km

What we see in St. Catharines homes

  • About 71% of St. Catharines homes were built before 1981, and 32% before 1961. (source)
  • St. Catharines' climate is moderated by Lakes Ontario and Erie, with frequent winter thaws, occasional heavy lake-effect snow and humid summers. (source)

Electricity is supplied by Alectra Utilities and natural gas by Enbridge Gas.

Thinking about a heat pump? See current heat pump rebates for St. Catharines homeowners.

Also serving nearby

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Products we install

Recommended furnaces

Compare all furnaces
  • Trane Premier 96 M – 96 Modulating Variable Speed Gas Furnace Premium
    Trane

    Furnace

    Trane Premier 96M Modulating Gas Furnace

    Model TUHMB060 / TUHMB080 +6

    AFUE rating of up to 97.3%. Fully modulating gas heat with variable-speed blower for consistent, precise warmth. Formerly the Trane XC95m.

    AFUE
    97.3%
    Stages
    Modulating
    Blower
    Variable
    View details
  • Goodman GRVM97 Modulating Gas Furnace Premium
    Goodman

    Furnace

    Goodman GRVM97 Modulating Gas Furnace

    Model GRVM97 / GDVM97

    Self-calibrating modulating gas valve. Integrated communicating ComfortBridge™ Technology.

    AFUE
    97%
    Stages
    Modulating
    Blower
    Variable
    View details
  • Trane Premier 97 – 97 Two-Stage Variable Speed Gas Furnace Premium
    Trane

    Furnace

    Trane Premier 97 Two-Stage Variable-Speed Gas Furnace

    Model S9V2B040D3VSB* / S9V2B040U3VSB* +9

    97% AFUE. Two-stage gas valve runs on 'low' as often as possible for quieter, more even heat. Formerly the Trane S9V2-VS.

    AFUE
    97%
    Stages
    Two-stage
    Blower
    Variable
    View details

St. Catharines heating and cooling questions

Do I need a permit for HVAC work in St. Catharines?

The City of St. Catharines lists installing or altering HVAC systems among work requiring a building permit. Requirements for a straight replacement can vary, so we'll confirm for your project. See the City of St. Catharines permit page.

Is a heat pump a good fit for a St. Catharines home?

Often, yes. St. Catharines' climate is moderated by Lake Ontario and Lake Erie, so a cold-climate heat pump can handle most or all of the heating season, with a furnace as backup in a hybrid system.

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What Our Customers Say

I had a furnace and A/C installed this past Thursday. I can’t say enough about Lancaster. The service rep Cassandra was the best…knowledgeable, kind very personable. The technicians installing my furnace and a/c were excellent as well..they went out of their way for me and they were just the best too!! I would give Lancaster a 10 out of 10 and I will be recommending Lancaster from now on!! Thank you for a great experience!.

Karen Paget Google review · February 2025

Lancaster Heating & Cooling never disappoints! Our family has been dealing with them for a number of years and every experience is a WOW moment! My AC stopped working last night and of course I called Lancaster. Today it is working again – thanks to Rob, who has done an excellent job every time when I need something, whether it is diagnosing, fixing or installing a new AC or furnace. This is THE COMPANY you can trust for all your heating and cooling needs! Thank you again Lancaster for your great service and customer experience!.

Hannele Lavemaa Google review · June 2025
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