24/7 Emergency Hotline (548) 761-8418

Members

Offers

Heating and Cooling Services Guelph Homeowners Count On

For over 45 years, Oosterveld Heating and Air Conditioning has delivered trusted heating and cooling services that Guelph families rely on. Our certified technicians ensure your home stays comfortable through every Ontario season.

Whether you need a furnace installation, AC repair, or a full HVAC system upgrade, our experienced team provides fast, professional service with guaranteed results, backed by decades of local expertise and care. Don’t let system failures disrupt your comfort—choose Oosterveld for dependable HVAC solutions backed by our satisfaction guarantee.

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

Spring BOGO

Buy a Furnace, Get an Air Conditioner FREE**

Get this deal
Front view of a Oosterveld HVAC condenser unit with a metallic grille design, shown isolated on a transparent background. Front view of a Oosterveld HVAC condenser unit with a metallic grille design, shown isolated on a transparent background.
current promotion

$0 Diagnostic

when proceeding with completed HVAC or Plumbing repair*

Get this deal
Google Guaranteed
4.8
Based on 1380 reviews
powered by Google

For more details, read our reviews:

Read our reviews

Heating Services

We install, maintain, and repair furnaces, heat pumps, centralized systems, and boilers to ensure your home stays warm, safe, and energy-efficient through the winter.

Air Conditioning Services

We offer full-service air conditioning solutions—including maintenance, repairs, and installations—so you can beat the summer heat with reliable cooling and clean indoor air.

Heat Pumps

Enjoy energy-efficient comfort year-round with our high-performance heat pump systems. Our team ensures proper sizing, expert installation, and long-term efficiency.

Plumbing

From water heater installs and drain cleaning to sump pump setups and fixture repairs, our licensed plumbers keep your water systems running reliably.

Drains & Sewer Systems

We clear clogs, repair damaged lines, and provide proactive maintenance to protect your home from backups and drainage issues.

Water Heaters

Our team installs both traditional and tankless water heaters, ensuring consistent, efficient hot water and professional connection to your home systems.

Find a home HVAC technician near you:

Serving Guelph and surrounding communities for over 45 years, Oosterveld Heating and Air Conditioning delivers dependable HVAC, plumbing, and home comfort services right where you need them.

  • Acton
  • Elora
  • Fergus
  • Guelph
  • Cambridge
  • Belwood
  • Puslinch
  • Rockwood
Oosterveld technician standing by our famous green trucks in a residential neighbourhood.

We know that time is critical when things go wrong.

When something goes wrong, you can count on us to respond quickly. Our certified team handles HVAC, plumbing, and water system emergencies 24/7. We’ll be at your door within hours—ready to help.

From emergency furnace fixes to late-night AC issues or urgent pipe repairs, our experts work fast to restore comfort without delay. You won’t wait around, our trucks are fully stocked, and our team is always ready.

Find the Right HVAC Solution

We help you choose the right system for your home’s size, layout, and energy goals. Whether it’s a first-time install or seasonal maintenance, we guide you every step of the way.

Fast Service & Savings

Need service now and want to save in the process? Our responsive team ensures you’re never waiting long, while offering efficient service that helps protect your HVAC investment. Expect timely appointments and practical advice that keeps your home comfortable—and your wallet happy.

Experienced, Skilled & Ready to Help

Our technicians service all major HVAC brands and stay up to date with the latest technology. With 45 years of experience in Guelph homes, we know how to get it right—on time and on budget.

Proudly serving Guelph and nearby communities, Oosterveld Heating and Air Conditioning provides dependable heating, cooling, and whole-home comfort solutions wherever you call home.

Ready for fast, reliable heating and cooling services in Guelph? Call us at (548) 761-8418 to speak with our local team, or schedule your service online today!

Schedule a consultation for heating & cooling services in Guelph.

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

Our HVAC Services

Climate control in Guelph isn’t just about keeping your home comfortable. It’s about safeguarding your family, protecting your property, and staying ready for Ontario’s unpredictable seasons. At Oosterveld Heating and Air Conditioning, we provide a full range of residential HVAC services to ensure your home stays warm in winter, cool in summer, and efficient all year long. From complete system installs to routine maintenance and urgent repairs, our certified technicians are trained to work on all major brands and models.

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

Heating Services

Boilers

Professional installation, tune-ups, and emergency repair services for both hot water and steam boiler systems, keeping your home warm and efficient during Ontario’s coldest months.

Centralized Heating Systems

Full-service solutions for centralized heating, delivering balanced heat distribution throughout your entire home.

Furnace Installation

We install high-efficiency furnaces correctly sized for your home’s layout and energy demands, ensuring dependable performance and cost savings.

Furnace Repair

Our team handles repairs for all furnace types and models, with 24/7 emergency support available to restore heat fast.

Heat Pumps

Expert installation and service of modern heat pump systems that heat your home in winter and cool it in summer, all in one unit.

A Oosterveld 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

Proper sizing and installation of air conditioning systems tailored for optimal cooling during Guelph’s humid summers.

AC Inspection

In-depth inspections that catch small issues before they become major breakdowns, boosting efficiency and system lifespan.

AC Repair

Responsive AC repair service for all makes and models, backed by fast dispatch and certified diagnostics.

Heat Pumps

Dual-purpose heat pumps designed to provide both heating and cooling year-round, installed and serviced by our licensed technicians.

UV Air Purifiers

Add-on UV air purifiers integrated with your AC system to eliminate airborne bacteria, viruses, and allergens.

Humidifiers

Whole-home humidifiers that regulate indoor moisture levels to improve air quality and comfort during dry seasons.

Duct Cleaning

We offer professional duct cleaning to remove dust, pollen, and debris, improving airflow and indoor air health.

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

Water Heaters

Water Heater Repairs

We service all water heater brands, including both tank and tankless systems. Fast, reliable repairs restore hot water in no time.

Water Heater Installation

New system installation includes proper sizing, setup, and removal of the old unit.

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

Plumbing Services

Faucets

Installation and repair of kitchen and bathroom faucets, backed by guaranteed workmanship and leak prevention.

Emergency Plumbing Services

Day or night, our team is on-call to handle burst pipes, overflows, or major leaks that can’t wait.

Kitec Plumbing

Safe, code-compliant replacement of outdated Kitec plumbing systems to protect your home’s infrastructure.

Plumbing Repairs

From leaky joints to corroded pipes, we offer lasting plumbing repairs using quality parts and expert tools.

Sinks

Installation and repair of all types of sinks, kitchen, laundry, bathroom with fast turnaround and perfect fitment.

Sump Pumps

We install and repair sump pumps to protect your basement from flooding during Guelph’s rain-heavy months.

Toilets

Fast, clean, and professional toilet repair or replacement with minimal disruption to your home.

Water Quality Systems

We install and maintain filtration systems that improve taste, reduce hardness, and protect your pipes.

Hydro-Jetting

High-pressure drain cleaning that removes stubborn grease, buildup, and root intrusion without damaging pipes.

Oosterveld service personnel inserting a diagnostic tool into a floor drain for a residential drain and sewer service check.

Drain and Sewer Systems

Water Cleanup & Restoration

Post-flood water removal, drying, and repair to restore your home and prevent future damage.

Waterproofing & Foundation Repair

Exterior and interior solutions to stop leaks and protect your basement and foundation from water damage.

Guelph’s Residential HVAC Service Professionals Since 1980

45 Years of Proven Experience You Can Count On

Oosterveld Heating and Air Conditioning has been part of the Guelph community for more than four decades. Our longevity speaks for itself. We’ve earned homeowners’ trust one job at a time. When your comfort is on the line, you can count on us to deliver solutions that work, backed by years of hands-on experience and local know-how.

Oosterveld service van with HVAC, plumbing, and electrical branding parked in a suburban neighborhood, promoting local trust.
Oosterveld, 45+ years serving our community

24/7 Emergency HVAC Service

Heating or cooling failure never happens at a convenient time. That’s why we offer 24/7 emergency HVAC service across Guelph, including weekends and holidays. One call to Oosterveld and we’ll be on our way, ready to fix the issue and restore your home’s comfort with urgency and care.

Certified, Background-Checked Professionals

Every member of the Oosterveld team is fully trained, certified, and background-checked. We don’t send just anyone to your home, only experienced technicians who know their craft, understand your system, and take pride in doing the job right the first time.

Upfront, No-Surprise Pricing

We believe in transparent, up-front pricing. From the start, you’ll receive a clear explanation of the work, your options, and exactly what it will cost, no fine print, no last-minute markups, no stress.

Satisfaction Guaranteed

Your satisfaction matters to us. If something’s not working the way it should after a visit from Oosterveld, we’ll come back and make it right, no extra charge, no hassle. Because comfort isn’t just a result.

Complete Home Comfort Solutions

We do more than just furnaces and ACs. From indoor air quality and water heaters to plumbing and electrical upgrades, we offer full-service solutions that keep your home running the way it should. When everything works together, comfort comes easy.

Hear from Guelph Homeowners Who Choose Our HVAC Services

Amelia Burke-Filewod
21:07 01 May 25
Very professional, great price for a new mid range furnace and A/C. Highly recommend. 🙂
Response from the owner 12:28 02 May 25
Thank you, and we appreciate you sharing the experience.
Ron Hansen
11:18 30 Apr 25
Oosterveld provides great service. Our technician, Zach was professional and friendly. Zach performed a thorough check of our A/C equipment and explained all of the results to assure us that everything was working properly. It was a pleasure to meet and work with Zach. Thanks, Ron and Nancy Hansen
Response from the owner 19:13 01 May 25
Thank you. We hope you have a great day!
Colin Baker
21:23 29 Apr 25
I had a tankless water heater installed by Oosterveld Heating through Costco, and I want to give a big thank-you to Mike and Jackson who handled the installation. They were professional, courteous, and showed real problem-solving skill — finding an innovative way to complete the install without unnecessary disruptions or added costs. The job was completed earlier than expected, and everything was left neat and clean. I really appreciated their workmanship and the great customer service from Matt and Claudia throughout the process. Highly recommended!
Reg McKeen
01:27 29 Apr 25
Erica Manual got the job done to our satisfaction. We would be happy to have her back when required.
Response from the owner 14:02 04 Dec 23
Your support is appreciated Reg. Thank you for choosing Oosterveld Heating and Air Conditioning and for taking the time to share your experience!
Joe Oliveira
15:17 28 Apr 25
Amazing work, clean, showed up on, answered all my questions.
Response from the owner 16:01 28 Apr 25
Thank you. We hope you have a great day!
Patricia Braida
20:02 27 Apr 25
Ryan was very cosiderate and friendly. He was also competent solving the problem quickly,Suggested how to prevent further issues, and even cleaned up the floor.
Response from the owner 19:13 01 May 25
Thank you. We hope you have a great day!
Peter Coome
22:47 25 Apr 25
did a great job
Response from the owner 14:09 22 Nov 24
We appreciate your support, Peter. We’re glad you chose Oosterveld Heating & Air Conditioning and appreciate you sharing your experience!
Ian Cowbrough
21:21 25 Apr 25
The service was excellent and very professional. The technician went above and beyond on this service.
Response from the owner 20:09 26 Apr 25
Thank you for choosing and trusting us, we genuinely appreciate your business!
Naheed Somji
19:55 25 Apr 25
Great service! Matt B. was very helpful and provided expert guidance without sales pressure. Clear communication and a fair price. The installers were also friendly and professional and trustworthy!
Response from the owner 22:32 25 Apr 25
Thank you for taking the time to share your experience. Have a wonderful day!