Describe your job with details to view a tailored list of pros.
Post your job

HVAC contractors in Thornhill, Ontario

Planning an HVAC project doesn’t have to be complicated. Post the details of your heating or cooling needs on HomeStars, and we’ll match you with HVAC contractors and companies in Thornhill, Ontario. Explore their previous projects, browse real reviews, compare quotes, and hire the pro who’s right for your home.

Some of our top rated hvac contractors in Thornhill, Ontario

1095 Results

Sort by:

  • HVAC contractor in Thornhill, Ontario

    Experienced master electrician With 15 years experience specializing in all Residential ,commercial andindustrial work

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    At Elite Renovations Plus, we are dedicated to providing reliable, high-quality services for all your home and property needs. With a focus on professionalism and attention to detail, our experienced team is equipped to handle everything from minor repairs to extensive renovations. We take pride in our craftsmanship and commitment to customer satisfaction, ensuring that each project is completed to your expectations. Whether you need interior or exterior services , trust Elite Renovations Plus to keep your space in top condition. Your home is our priority.

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    At OLU HVAC, our goal is simple: solve your problem the right way. We are not here to sell you equipment you don’t need. We focus on diagnosing the issue, explaining the best options, and providing reliable heating and cooling solutions that fit your needs and budget. With hands-on experience in residential and commercial HVAC systems, we specialize in installation, repair, maintenance, and troubleshooting of furnaces, air conditioners, heat pumps, and ventilation systems. We believe in honest service, quality workmanship, and fair pricing. Our priority is making sure your system runs efficiently, safely, and comfortably for your home or business. When you call OLU HVAC, you’re getting a technician who cares about fixing the problem properly, not just selling a service.

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    Need a Painter, HVAC contractor, Plasterer, General contractor, Window Contractor, Security specialist and business services, Flooring Contractor, Electrician, Handyman, Landscaping Company, Carpenter, Paving Contractor, Roofing specialist, Tiler, Upholsterer, Bathroom Renovation Company, Cleaning company, Mirrors & Glass specialist, Appliance repair specialist, Pool company, Drywall specialist, Locksmith, Concrete Specialist, Garage Specialist, Countertops Specialist, Fences & Gates Specialist, Gutters & Eavestroughs Specialist, Home Electronics Specialist, Siding Specialist, Condominium/Apartment Specialist, Plumber, Refrigeration specialist, Cabinet maker, Mason, Excavation Specialist, Metal worker, Kitchen Renovation Company & Stairmaker based in Richmond Hill or nearby? JJs Garage Renovation Services can help you. We pride ourselves on the quality work that we deliver to each and every client. Contact us to talk about your job and get a quote.

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    This is family Business company with 23 years Experience and established in Canada at 2015 with fully license trades work on it. We have Gas technician license ,ESA license ,Master Plumber license and Architect license in our family business member who work with each other almost 11 years. we do quality work with all budgets but we DONT do the formal or CHEAP work All projects Have Minimum 6 Month limited Warranty we do Residential ,Commercial , and Insurance jobs Expert

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    ASMIMA Flooring Inc is a professional flooring company dedicated to providing high-quality flooring solutions for residential, commercial spaces. We specialize in installation, and maintenance of a wide range of flooring materials, including hardwood, laminate, vinyl, tile, carpet. Our priority is customer satisfaction. ASMIMA Flooring Inc, we are committed to delivering durable, stylish, and cost-effective flooring solutions tailored to meet our clients' unique needs. We ensures precise installation, exceptional craftsmanship, and outstanding customer service, making us a trusted choice for flooring projects of any size. We give 2 years workmanship warranty for our work. We have experience for floor heating and Schluter heating and tile products. I attach certificates as well..

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    With over 30 years of experience, we are a trusted and fully licensed plumbing and heating company proudly serving both residential and commercial clients across the GTA. Whether it’s a new construction project or a renovation, we specialize in delivering high-quality workmanship, reliable service, and long-lasting results. We are also proud to offer green energy solutions for residential properties. Our team installs 15KW solar systems that power your home’s heating and hot water through electric systems using indirect hot water tanks and air handlers.

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    Renovation by Doma Craft— we create perfect interiors for your home and office. Fast, reliable, quality.

    Get in touch
  • We work on everything essential for your home. Home Automation Home Security Security Cameras Systems Structured wiring – Internet, Tv,Satellite & Telephone connections Central Vacuum system Audio system Video systems Theatre Room installation Low Voltage Nest and Eco Bee thermostat installations Office Network Wiring Office Server Setup Office Wireless Access Point Setup Office Conference Room Installation Etc

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    We’re a minority owned family electrical company trying to make change in the industry. Serving the entire GTA, we're your one-stop electrical contractor—specializing in panel upgrades, EV chargers, fire alarms, and large-scale installations for homeowners, businesses, and beyond. Homeowners trust our family-run team to bring comfort, efficiency, and safety under one roof-modernizing your wiring, lighting, and power systems so you can enjoy a smart, secure home, our family-run, fully licensed electricians deliver everything code-compliant, on time, and on budget, so you gain lasting peace of mind and lower energy bills.

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    I’m licensed and insured plumber Handyman Pool mechanic part specialist

    Get in touch
  • Infinite Mechanical Solutions Inc. provides professional plumbing and mechanical services for residential and commercial clients across York Region, Durham Region, and the Greater Toronto Area (GTA). We specialize in renovations and new construction, sewer and drain repairs, drain unclogging, fixture installations, and leak diagnostics and repairs. Our work also includes water supply and drainage systems, water heater installations, water treatment systems, and sewer main and drainage system work for both new installations and renovations. Whether you’re dealing with a clogged drain, upgrading plumbing fixtures, or planning a larger mechanical project, we deliver reliable workmanship, clear communication, and code-compliant solutions from start to finish. Contact Infinite Mechanical Solutions Inc. today to discuss your project and receive a detailed quote.

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    We provide fast and professional residential plumbing Services.No job is too small-here to help with all your plumbing needs. Services We Offer: • Drain cleaning & unclogging • Toilet repair & replacement • Sink, faucet, and shower repairs • Leak detection & pipe repairs

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    We specialize in reliable, high-quality HVAC services for residential and commercial customers. From installation and maintenance to repairs and emergency service, our certified technicians are committed to keeping your home or business comfortable year-round. We work with all major heating and cooling systems, including furnaces, air conditioners, heat pumps, and ventilation systems. Whether you need a seasonal tune-up, a system upgrade, or fast repairs, we deliver efficient solutions tailored to your needs and budget. Customer satisfaction is our top priority. We pride ourselves on honest pricing, prompt service, and expert workmanship you can depend on. Services include: • Furnace installation & repair • Air conditioning installation & repair • HVAC system maintenance & tune-ups • Heat pumps & ductless systems • Indoor air quality solutions • Emergency HVAC services

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    Professional and licensed master electrician More than 10 year experience, Data and low current system Security and control

    Get in touch
  • HVAC contractor in Thornhill, Ontario

    I have over 4 years of experience working with residential and commercial swimming pools. I specialize in pool installation, repairs, maintenance, seasonal opening and closing, equipment replacement, leak detection, troubleshooting, and water balancing. I take pride in providing reliable, high-quality service and making sure every pool is safe, clean, and operating efficiently. Customer satisfaction and attention to detail are always my top priorities.

    Get in touch

4.8

Top rated HVAC contractors

Our HVAC contractors in Thornhill, Ontario, are rated 4.8 out of 5 based on 440 reviews from homeowners like you.

Quality screening

Easily find verified local pros. Just post your job to get quotes from pros near you across Canada.

What services are offered by HVAC contractors and companies in Thornhill, Ontario?

HVAC contractors and companies in Thornhill, Ontario provide a range of services to keep your indoor environment comfortable year-round.

Popular HVAC services in Thornhill, Ontario include:

  • Fitting air cleaners and humidifiers to improve indoor air quality

  • Setting up a solar water heater to provide energy-efficient, sustainable hot water for your home or business

  • Repairing or replacing water heaters to ensure reliable hot water supply

  • Installing or servicing furnaces and heat pumps to ensure reliable heating during harsh winters

  • Upgrading or replacing air conditioning systems to keep indoor spaces cool, comfortable, and energy-efficient

  • Modernizing boilers to provide consistent heating and hot water while improving energy efficiency and system reliability

Searching for heating and air conditioning contractors in Thornhill, Ontario? Save yourself time and by posting your project on HomeStars. Compare profiles and request quotes from your preferred Thornhill, Ontario HVAC contractors and companies before making your final hiring decision.

What are the average costs of HVAC services in Thornhill, Ontario?

When hiring HVAC services in Thornhill, Ontario, prices vary depending on the type of system and the complexity of the installation or repair. Typical labour charges for furnace installations often run between $75 and $150 per hour, with most installations requiring 8 to 16 hours of work.

For a full heating/cooling system installation, homeowners generally pay between $4,000 and $7,500 for standard systems.

For common HVAC jobs in Thornhill, Ontario, expect to pay:

Find heating and cooling contractors in Thornhill, Ontario on HomeStars

Finding HVAC contractors and companies in Thornhill, Ontario doesn’t have to be stressful. Just post your project on HomeStars’ free and easy to use platform, and we’ll match you with pros ready to help.

How to hire Thornhill, Ontario heating and air conditioning contractors on HomeStars:

  1. Start by posting your project. Provide a clear description of your heating and cooling requirements and include photos to get precise quotes.
  2. Compare profiles, browse previous work history and get quotes from HVAC contractors and companies in Thornhill, Ontario.
  3. Connect with multiple HVAC contractors in Thornhill, Ontario to discuss your project, request quotes and ask any questions.
  4. Hire the right pro to get the job done and leave a review based on your experience. Our review system ensures that pros are rewarded for good work and held accountable for any problems.

All of the HVAC contractors and companies in Thornhill, Ontario who register with our platform undergo verification, including ID and company checks, so you can hire with confidence and peace of mind through HomeStars.

What to ask an Thornhill, Ontario HVAC contractor before hiring?

Looking for a HVAC contractor in Thornhill, Ontario? These questions can help you find a pro who’s the right fit for your heating, cooling, or ventilation project.

Are you licensed and insured in Thornhill, Ontario?

Most HVAC work, especially gas, boiler, or high-capacity heating systems, requires pros to be licensed. Ask your preferred HVAC contractors in Thornhill, Ontario for proof of licences and liability insurance to protect yourself in case of accidents or damage.

Will you handle permits and inspections if required?

Some HVAC installations or replacements, like gas-fired boilers, require municipal permits and inspections. Confirm the Thornhill, Ontario HVAC company will handle this so your installation is compliant.

What types of HVAC systems do you work on?

Some Thornhill, Ontario HVAC contractors specialize in furnaces, boilers, air conditioning, or heat pumps. Confirm they have experience with your system type to ensure proper installation or repair.

Do you offer maintenance or service plans?

Regular maintenance improves efficiency and extends system life. Check if your Thornhill, Ontario HVAC contractor offers annual inspections, filter changes, or seasonal tune-ups as part of a service plan.

How do you handle unexpected issues during installation?

Older homes or complex systems can reveal surprises, like outdated wiring or plumbing conflicts. Ask your heating and cooling contractor in Thornhill, Ontario how they communicate additional costs or changes to avoid surprises.

FAQ: Common questions about HVAC in Thornhill, Ontario

Can HVAC companies in Thornhill, Ontario remove old equipment?

Many Thornhill, Ontario HVAC companies include removal and disposal of old units as part of the installation service, though it’s best to confirm in advance.

How long do HVAC installations by Thornhill, Ontario HVAC contractors typically take?

Installation times vary depending on system type and home size. Furnaces or air conditioning systems usually take 1 to 2 days, while more complex setups may take longer.

Do heating and cooling contractors in Thornhill, Ontario offer energy audits?

Some Thornhill, Ontario HVAC contractors provide home energy assessments to identify ways to improve efficiency and reduce heating or cooling costs.

How do Thornhill, Ontario HVAC contractors handle refrigerant disposal?

Thornhill, Ontario HVAC contractors follow Canadian environmental regulations to safely recover, recycle, or dispose of refrigerants during air conditioning or heat pump servicing.

Other pros in Thornhill, Ontario

Cities