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About Limcan Certified Heating and Air Conditioning

Reliable Heating, Cooling & Plumbing Services Since 1964

At Limcan Certified Heating and Air Conditioning, we’ve been providing dependable HVAC and plumbing services throughout Oshawa and surrounding areas since 1964. From the beginning, our goal has been to respond fast, fix problems thoroughly, and provide skilled service that keeps your household comfortable.

From a malfunctioning furnace to AC breakdowns or plumbing concerns, our professionals are on call 24/7 to assist. We offer same-day service, support all makes and models, and deliver smooth, efficient service focused on your home’s needs.

Limcan service van parked by a brick home highlighting trusted plumbing, heating & electrical expertise since 1964

Modern Solutions Backed by Decades of Experience

From coal-fired systems in the 1960s to today’s cutting-edge, energy-saving HVAC systems, Limcan Certified Heating and Air Conditioning has kept pace with every major industry advancement. Our licensed HVAC and plumbing technicians keep up with the latest systems, offering clear and effective solutions designed around your needs and budget.

Whether you need a new furnace installed, your drains cleared, or a heat pump repaired, you can count on a team that brings experience, up-to-date training, and a commitment to getting it done right.

Smiling Limcan technician standing confidently in front of their green service van, wearing their white issued uniform.

Locally Based. Professionally Driven.

We’re more than a service company—we’re part of the Oshawa community. Our locally-based team serves surrounding areas including Whitby, Courtice, and Bowmanville. Every job is handled by knowledgeable HVAC and plumbing experts focused on providing a smooth experience from first call to final check.

With Limcan Certified Heating and Air Conditioning, you’ll always work with experienced pros who value your home, your schedule, and your time.

What Sets Limcan Certified Heating and Air Conditioning Apart

Same-day repairs and next-day installations

24/7 emergency service available

Licensed, experienced technicians and plumbers

Clear communication and fair, upfront pricing

Solutions tailored to your home and comfort needs

All-in-one expertise: heating, cooling, plumbing & more

Serving the surrounding areas with a proud local presence since 1964

What Homeowners Are Saying

See what residents across the Oshawa region are saying about their experiences with Limcan Certified Heating and Air Conditioning. Whether it’s a last-minute furnace issue, an AC tune-up, or a quick plumbing repair, we’re proud to offer efficient solutions that help keep your home comfortable, fast.

Connie Overland profile pictureConnie Overland
18:49 31 Aug 26
Furnace maintenance
Leonard Rogers profile pictureLeonard Rogers
23:53 29 Aug 26
Great experience from start to finish.
pentaman24 profile picturepentaman24
14:32 28 Aug 26
Christopher performed my annual AC and furnace checks. His work was thorough and cheerful. Good advice. Great job!
Bob White profile pictureBob White
15:03 26 Aug 26
The installers were right on time. They were friendly and answered all questions politely.
Removal of the old water heater and new installation was very professional. I highly recommend the Limcan team.
Joan profile pictureJoan
19:33 01 Aug 26
Heat pump service
Kishor Solanki profile pictureKishor Solanki
23:34 31 Jul 26
Nice work and people.
r h profile picturer h
19:46 31 Jul 26
We recently had a new furnace and AC installed. We could not have asked for a better experience. From sales, customer service and installation nothing but superb!! Chris and Jamie the technicians were extremely professional, friendly and courteous. We’d be delighted to recommend your company to anyone looking to purchase a new furnace or AC. With warmest greetings. Rudy H Whitby

July 31st, 2026

Christopher A. cleaned our furnace today as well as serviced our AC, tankless water tank and humidifier.

He did a fantastic job. He was courteous, polite, friendly and professional.

We could not be happier.

Thanks so much Christopher

Rudy H
Whitby
Paula Dawson profile picturePaula Dawson
18:33 02 Jul 26
Service was promt, and professional. Thank you
Bruce Milliken profile pictureBruce Milliken
17:36 02 Jul 26
Excellent service
Steven P profile pictureSteven P
15:27 01 Jul 26
Eric came to diagnose an issue with my heat pump. He was very professional, friendly and informative. He provided excellent service and I would highly recommend him.
Sharron Flewell profile pictureSharron Flewell
18:09 03 Jun 26
Carter S came last week to service my air conditioner. He found the problem and it is now working fine. Carter was a pleasant knowledgeable technician with great customer service skills
Dave Ruston profile pictureDave Ruston
14:37 03 Jun 26
Was very helpful and informative
Flora Conforti profile pictureFlora Conforti
14:24 03 Jun 26
I highly recommend Limcan Certified Heating and Air Conditioning! Geoffrey G.'s attention to detail and professionalism is unmatched! He is knowledgeable and kind when providing expert advice! I trust Limcan Certified Heating and Air Conditioning in maintaining my home!
Deanna MacDonald profile pictureDeanna MacDonald
21:23 02 Jun 26
Great experience with Chris who showed up first thing in the morning after gas was shut off during the Neptune meter exchange. Was honest, fast and very friendly.
Ian Phillips profile pictureIan Phillips
12:26 02 Jun 26
Carter was very efficient and friendly
Marcia Myers profile pictureMarcia Myers
20:17 03 May 26
Ted was fantastic!
Wendy Evelyn profile pictureWendy Evelyn
02:23 03 May 26
Eric was prompt, friendly, and was very diligent in trying to solve my gas fireplace emission issue. He explained well what he did and was sympathetic when it was discovered it could not be repaired. Very personable, professional, and informative.
Christian Mariani profile pictureChristian Mariani
23:44 02 May 26
Davage did a great job replacing our AC switch. Arrived on time, did the job, cleaned up, was polite and informative. All expectations met. Much thanks!
Leslie McMillan profile pictureLeslie McMillan
19:18 02 May 26
Geoffrey great
Bryan Grove profile pictureBryan Grove
13:46 02 May 26
Geoffrey was great! On time, pleasant and very knowledgeable.
Limcan technician standing by our famous green trucks in a residential neighbourhood.

Areas We Serve

Limcan Certified Heating and Air Conditioning is proud to offer professional HVAC, plumbing, and indoor air quality services throughout the following areas:

  • Oshawa
  • Whitby
  • Bowmanville
  • Pickering
  • Ajax
  • Brooklin
  • Millbrook
  • Campbellcroft
  • Clarington
  • Newcastle
  • Newtongville
  • Orono
  • Courtice
  • Mitchell Corners
  • Kirkby
  • Vanier
  • Windfields
  • Samac
  • Taunton
  • Eastdale
  • Kawartha Lakes
  • Peterborough

Let’s Get Your Home Back on Track

When your home systems need attention, Limcan Certified Heating and Air Conditioning is ready to help. Our team is available 24/7 with quick response times and flexible scheduling, because your comfort should never be delayed.
Call us at (289) 274-4367 or book online today.

Limcan Certified HVAC technicians standing beside their service van in Whitby