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Heating and Cooling Services Oshawa Homeowners Depend On

For over 60+ years, Limcan Certified Heating and Air Conditioning has delivered dependable heating and cooling services that Oshawa families rely on. Our licensed technicians keep homes comfortable and efficient year-round, through the coldest winters and hottest summers.

From furnace installation to air conditioner repair and complete HVAC system upgrades, our experienced team delivers fast, professional HVAC service with guaranteed results. When comfort matters, Limcan Certified Heating and Air Conditioning is the reliable name homeowners turn to.

Limcan team member in his white uniform, smiling broadly with teeth visible.
Front view of a Limcan Certified HVAC condenser unit with a metallic grille design, shown isolated on a transparent background. Front view of a Limcan Certified HVAC condenser unit with a metallic grille design, shown isolated on a transparent background.
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Heating Services

We specialize in installing, maintaining, and handling emergency repairs for heat pumps, boilers, furnaces, and central heating systems—ensuring your Oshawa home stays efficient and comfortable throughout the year.

Air Conditioning Services

Our technicians offer reliable installation, seasonal maintenance, and fast repairs for air conditioners, heat pumps, UV air purifiers, humidifiers, and duct systems, ensuring your home stays cool and the air stays clean.

Heat Pumps

Limcan’s high-efficiency heat pump solutions offer seamless heating and cooling, adjusting to seasonal changes for consistent year-round comfort in Oshawa’s unique climate.

Plumbing

From faucet installations and sump pump repairs to emergency service and drain maintenance, our licensed plumbers ensure clean water, reliable flow, and better quality in every room.

Drains & Sewer Systems

Our drain and sewer experts provide advanced solutions for clogs, root intrusion, waterproofing, and more, protecting your basement, foundation, and peace of mind.

Water Heaters

We install, maintain, and repair both tank and tankless water heaters for consistent hot water supply and improved energy efficiency across your entire home.

Find a Home HVAC Technician Near You:

Proudly serving Oshawa and nearby communities, Limcan Certified’s HVAC technicians offer reliable heating, cooling, and indoor air quality solutions wherever you call home.

  • Oshawa
  • Whitby
  • Bowmanville
  • Pickering
  • Ajax
  • Brooklin
  • Millbrook
  • Campbellcroft
  • Clarington
  • Newcastle
  • Newtongville
  • Orono
  • Courtice
  • Mitchell Corners
  • Kirkby
  • Vanier
  • Windfields
  • Samac
  • Taunton
  • Eastdale
  • Kawartha Lakes
  • Peterborough
Limcan technician standing by our famous green trucks in a residential neighbourhood.

We know that time is critical when things go wrong.

We understand that time is critical when something goes wrong. That’s why the team at Limcan Certified Heating and Air Conditioning is always prepared to respond quickly to any heating, cooling, plumbing, or electrical emergency in Oshawa and surrounding areas. Whether it’s day or night, a weekend or a holiday, you can count on us to be there within hours.

Our licensed technicians are experienced professionals who specialize in HVAC, plumbing, and electrical services. From furnace breakdowns to air conditioner installations, we handle every job with precision and care. We know that unexpected problems can disrupt your day, which is why we’re committed to providing fast, reliable solutions that last. You’ll never wait long when you call Limcan—we’re always ready to help.

Find the Right HVAC Solution

Unsure which heating or cooling setup is right for your home? Our expert team will assess your home and recommend energy-efficient options that fit your comfort needs and budget. Whether you’re installing a new HVAC system or scheduling seasonal maintenance, we’ll help you make the right call.

Fast Service & Savings

Choosing the right HVAC system doesn’t have to be overwhelming. We’ll inspect your home and recommend the best solution based on your unique needs and budget. Whether it’s a brand-new install or a tune-up to keep things running well, we’ll be there in no time.

Experienced, Skilled & Ready to Help

We work with all makes and models of HVAC equipment and continue to train on the latest technologies to deliver the best service in Oshawa. From emergency service calls to long-term system care, Limcan Certified Heating and Air Conditioning is your go-to team for dependable heating, cooling, plumbing, and electrical solutions.

Limcan Certified Heating and Air Conditioning proudly serves Oshawa and the surrounding communities with expert HVAC technicians, delivering dependable heating, cooling, and indoor comfort solutions—wherever you call home.

Ready for fast, reliable service in Oshawa? Call Limcan Certified Heating and Air Conditioning today at (289) 274-4367 or schedule your appointment online.

Schedule a consultation for heating & cooling services in Oshawa.

Two Limcan Certified technicians smiling in front of their green service van, wearing issued jackets during an on-site consultation.

Our HVAC Services

Maintaining a stable indoor climate goes beyond comfort—it’s essential for protecting your family and your home through Oshawa’s extreme seasonal shifts. At Limcan Certified Heating and Air Conditioning, we offer a full range of HVAC services tailored to meet the unique needs of homeowners in Oshawa and surrounding communities. Our experienced, factory-trained technicians are equipped to handle every aspect of heating and cooling—from professional installation and preventative maintenance to fast repairs and 24/7 emergency service. No matter the season, we’re here to keep your home running smoothly and comfortably.

A Limcan heating technician inspecting internal wiring during a service check on a residential heating unit.

Heating Services

Boilers

Installation, maintenance, and 24/7 emergency repair services for both hot water and steam boiler systems.

Centralized Heating Systems

Full-service solutions for centralized systems, ensuring balanced and consistent heating across your home.

Furnace Installation

Expert furnace sizing, installation, and configuration to ensure optimal performance and long-term reliability.

Furnace Repair

Skilled repair services for all furnace models, with around-the-clock emergency assistance when needed.

Heat Pumps

Installation and maintenance of energy-efficient heat pump systems that deliver both heating and cooling throughout the year.

A Limcan HVAC specialist wearing glasses and gloves uses a diagnostic tool to service an outdoor AC unit beside a brick wall.

Air Conditioning Services

AC Installation

Accurate sizing, placement, and professional setup of air conditioning units to ensure peak performance and energy savings.

AC Inspection

Detailed inspections that identify problems early and help prevent mid-season breakdowns.

AC Repair

Prompt, expert repair services for all makes and models of AC systems, including emergency repair options.

Heat Pumps

Year-round comfort with efficient heat pump systems that provide both cooling and heating functions.

UV Air Purifiers

Installation and upkeep of UV air purification systems designed to reduce airborne contaminants and integrate with existing HVAC setups.

Humidifiers

Whole-home humidifier installation and service to help maintain ideal indoor humidity levels all year.

A Limcan technician adjusts the control module on a residential water heater, verifying proper operating settings.

Water Heaters

Water Heater Repairs

Troubleshooting and repair for all types and brands of water heaters to restore hot water fast.

Water Heater Installation

Full-service installation of new, energy-efficient water heaters—including removal of your old system and proper hookup of the new one.

Using two pipe wrenches, a Limcan professional plumber services a pipe connection near a vertical flue or vent pipe.

Plumbing Services

Faucets

Repairs and new installations of faucets in kitchens, bathrooms, and utility areas.

Emergency Plumbing Service

24/7 rapid-response plumbing services for urgent repairs and water issues.

Kitec Plumbing

Complete replacement of outdated Kitec piping systems to ensure safe, code-compliant plumbing.

Plumbing Repairs

Full-spectrum plumbing repairs, from small leaks to major pipe failures.

Sinks

Installation and servicing of all types of sinks, including kitchen, bathroom, and laundry room fixtures.

Sump Pumps

Installation, repair, and routine service of sump pump systems to help prevent basement flooding.

Toilets

Fast, clean toilet repairs and replacements with minimal disruption to your routine.

Water Quality

Advanced water filtration and softening solutions to improve your home’s water and protect plumbing fixtures.

Hydro-Jetting

Powerful water jetting technology that clears stubborn clogs and buildup from inside plumbing lines.

drains

Drain and Sewer Systems

Water Cleanup & Restoration

Emergency services to clean up, dry, and restore your home after flooding or plumbing issues.

Waterproofing & Foundation Repair

Total solutions for waterproofing and structural foundation repairs to prevent water damage.

Exterior Basement Waterproofing

Systems designed to block water infiltration at the source—before it reaches your basement.

Sewer Subsidy Programs

Expert guidance to help homeowners access and benefit from available municipal subsidies for sewer and flood protection upgrades.

Drains

Routine maintenance and unclogging of drains to keep water flowing freely.

Oshawa’s Residential HVAC Experts

60+ Years of Proven Experience You Can Count On

Since 1964, Limcan Certified Heating and Air Conditioning has proudly delivered reliable HVAC services to homeowners and businesses across Oshawa. Our long-standing reputation is built on expert craftsmanship, reliable service, and a dedication to customer satisfaction. With thousands of installations and repairs completed, you can count on our experience to keep your property comfortable year-round.

Limcan service van with HVAC, plumbing, and electrical branding parked in a suburban neighborhood, promoting local trust.
Limcan_yrs

24/7 Emergency HVAC Service

Comfort issues can arise at any time—that’s why we offer 24/7 emergency HVAC service in Oshawa. Whether it’s a heating failure on a winter night or a cooling issue during a summer heatwave, our team is ready to respond fast. We’re here to restore your comfort system when it matters most.

Certified, Background-Checked Professionals

Each Limcan technician is fully certified, professionally trained, and background-checked for your peace of mind. When our team enters your home, you can feel confident knowing you’re getting expert service from professionals who are respectful, qualified, and committed to high standards.

Upfront, No-Surprise Pricing

We believe in complete transparency. That’s why we provide detailed estimates before beginning any work. With our upfront pricing, there are no hidden fees or unexpected charges—just fair, straightforward service that respects your time and your budget.

Satisfaction Guaranteed

We back every service with a satisfaction guarantee. If you’re not completely happy with the heating or cooling solution we provide, we’ll do what it takes to address it. Your comfort and peace of mind are always our top priorities.

Complete Home Comfort Solutions

Limcan goes beyond traditional HVAC services. We provide integrated solutions to improve your home’s overall comfort and performance—from plumbing and electrical to indoor air quality and water systems. Our holistic approach ensures every system in your home works seamlessly together.

Hear from Oshawa Homeowners Who Choose Our HVAC Services

Heather Cowan-Moritz
00:57 09 May 25
I had Geoffrey Guerton do my service call, he was fantastic! I love working with Limcan, I have purchased in the past 3 years a propane furnace, and an HVAC system. I am very satisfied with there service and they offer great products for a reasonable price. 👍
Response from the owner 03:57 05 Oct 22
Thank you so much Heather for inviting Limcan Certified Heating & Air Conditioning into your home! We appreciate your positive review. Stay safe and well.
rhonda long
20:52 08 May 25
Gabriel was very professional.
Response from the owner 01:46 11 May 23
Thank you for choosing and putting your trust in us - we appreciate your business!
Margaret Barker
16:08 08 May 25
Gabriel showed up and did an excellent job. Friendly service done quickly
Response from the owner 16:49 08 May 25
Thank you for choosing and trusting us, we genuinely appreciate your business!
Leanne Muller-Cain
22:38 07 May 25
Geoffrey G was very punctual, professional knowledgeable, and friendly. Geoffrey took the time to explain a few questions I had re the gas fireplace and the ventilation system. Always a good experience with Limcan. Thank you Geoffrey!
Response from the owner 18:48 08 May 25
We appreciate your business and look forward to working with you again!
Allison A
19:51 06 May 25
Christopher Alfphonso is a wonderful asset to LimcanClean, tidyArrived on time laid carpets down and booties.Worked as a team and efficiently . Always so professional. Proper use of PPE.
Response from the owner 06:16 22 Jan 20
Thank you Allison! It's great to hear it was a positive experience! We look forward to working with you again!
Richard Blanchet
18:54 06 May 25
Most impressed with job done by Michael S. team in installing my A/C system. Strongly recommend.
Response from the owner 13:43 07 May 25
We appreciate your business and look forward to working with you again!
Haibo Zhang
15:56 05 May 25
Geoffrey is an excellent service provider.
Response from the owner 16:37 05 May 25
Thank you. We hope you have a great day!