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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

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  • HVAC contractor in Thornhill, Ontario

    hello, I am Master Electician last 10 year, I do my electrical work safely and electrical code, I do my my all work like, install E.V.Charger, pot light, upgrade PANEL (100 amp to 200 amp ) with E.S.A inspection .Run new home wiring .

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  • HVAC contractor in Thornhill, Ontario

    Hi, I run a small construction service focusing on plumbing and HVAC. We also provide full home renovation services including drywall, painting, flooring, sump pump installation, and water filtration systems. We offer reliable service, fair pricing, and clean workmanship. Feel free to contact me anytime for a quote.

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  • HVAC contractor in Thornhill, Ontario

    "Hi, my name is Riazullah,Wafa, and I’m a licensed professional electrician with 10 years of experience. I specialize in [residential/commercial/industrial] electrical work, and I’m committed to delivering safe, high-quality service. I'm here to help with [brief summary of the job], and I’ll make sure everything is done up to code and with minimal disruption to your day."

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  • HVAC contractor in Thornhill, Ontario

    At The Fix Up, we’re here to make your home repairs and improvements as simple and stress-free as possible. Whether it’s fixing a leaky faucet, refreshing your walls with a fresh coat of paint, or tackling a larger project like custom storage solutions, we’ve got you covered. With over a decade of experience and a commitment to quality, we pride ourselves on delivering reliable, professional services tailored to your needs. Explore our range of services and discover how we can help bring your vision to life. No matter the size of the job, we’re here to ensure your home is in great hands!

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  • HVAC contractor in Thornhill, Ontario

    Aegis Roofing is a professional roofing company serving clients across the Greater Toronto Area. We provide a full range of services including new roof installation, re-roofing, repairs, inspections, and maintenance programs. Our team is equipped with roofing specialists who bring more than 20 years of industry experience, guaranteeing high-quality workmanship, safety, and attention to detail. At Aegis Roofing, we are committed to delivering durable and cost-effective solutions tailored to each client’s needs.

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  • HVAC contractor in Thornhill, Ontario

    We are a luxury construction company, we focus on high quality work, with high quality results. We specialize in New Construction, Renovations, Additions and Extensions, Construction for residential and commercial. We build out commercial spaces from retail showrooms to office spaces to restaurants . We are also offering 3D Scanning services and 3D printed buildings, structures and houses. We are a full feature company and offer all services from design to finishing for your projects.

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    • Best of Awards 2026

    Since 2005, Omega Heating & Air Inc has been one of the Greater Toronto Area's reliable provider of heating, ventilation and air conditioning solutions. Our two decades of experience servicing residential and commercial clients across the GTA has help establish us as leaders in preventative maintenance and comprehensive HVAC care. Our satisfaction rate with our customers and legacy of excellence speaks for itself. With our seasonal maintenance programs customers can maximize their HVAC investment while ensuring year round comfort. Contact us today to learn more about our value packed maintenance contracts and comprehensive HVAC solutions

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  • HVAC contractor in Thornhill, Ontario

    You found the right A person who makes you to call again after service

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  • HVAC contractor in Thornhill, Ontario

    Dixie Electric Service (ECRA # 7018475) Hello! I’m Muhammad, the owner and Master Electrician at Dixie Electric Service. We are a fully licensed, registered, and insured electrical contracting company, certified by the ECRA, ESA, WSIB, and IHSA. Bringing over a decade of hands-on industry experience, I am proud to provide premium residential and commercial electrical services across Ontario. Core Services: Panel Upgrades & EV Chargers Outlet & Lighting Installations Custom Homes & Basement Renovations Electrical Troubleshooting & Repairs Commercial Wiring & Fire Alarm Systems Whether you are managing flickering lights, dealing with outdated wiring, or tackling safety concerns, I deliver precise, code-compliant solutions to give you absolute peace of mind. Every project we undertake is executed with maximum professionalism and strict adherence to the Ontario Electrical Code. From start to finish, count on Dixie Electric Service for a dependable, seamless, and stress-free experience.

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  • HVAC contractor in Thornhill, Ontario

    HVAC contractor for residential and light commercial settings. Work on furnaces, air conditioner, water tanks, walk-in coolers/freezers, rooftop units.

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  • HVAC contractor in Thornhill, Ontario

    Dependable HVAC Technician, bringing top-notch customer relations, planning and mechanical repair skills, Competent in independently organizing installation and repair plans. Expert in diagnosing, servicing

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  • HVAC contractor in Thornhill, Ontario

    We are a professional plumbing company providing reliable residential and commercial plumbing services. Our team handles everything from routine plumbing repairs and maintenance to drain cleaning, leak detection, fixture installation, water heater services, and emergency plumbing needs. We focus on quality workmanship, clear communication, and dependable service. Every job is approached with attention to detail, proper tools, and practical solutions designed to solve the problem correctly—not just temporarily. Whether you need a quick repair, ongoing maintenance, or help with a larger plumbing project, our goal is to make the process simple and stress-free. We take pride in arriving on time, keeping customers informed, maintaining a clean work area, and completing each job to a high professional standard. Contact us today to discuss your plumbing needs and get reliable service from a team you can count on.

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  • HVAC contractor in Thornhill, Ontario

    Pristine Plumbing Inc. is a locally owned and operated family plumbing business serving Mississauga and the GTA. Over 15 years of experience. We provide residential and commercial plumbing services, including repairs, renovations, drain and sewer work, water services, repiping, and installations. We take pride in quality workmanship, reliable service, honest pricing, and treating every customer fairly

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  • HVAC contractor in Thornhill, Ontario

    15503175 Canada Inc. can help you with your install or replace airconditioning, repair windows, install or replace interior doors, install or replace exterior or reinforced doors, install or replace shutters, install or replace rolling shutters, install or replace insect screen, repair floor, install or renovate foundation, build pergola, gazebo or garden house, yard maintenance, install or repair electrical sockets and switches, repair household appliance, install or replace thermostats, repair or maintain airconditioning, assemble or disassemble furniture, install or replace household appliances, trim and decorative moldings, build or replace decking, install or renovate swimming pool, clean roof or gutters, mount artwork, tvs or furniture, install or replace garage door, repair door, repair or treat facade, repair or maintain roof or gutter, repair plaster, repair shutters, repair exterior doors, repair wall or floor tiles, sealing / caulking, install or replace window bars and railing, repair or maintain fence, various small jobs, decorative painting, paving, install or replace pool cover, winter services and snow removal, exterior trim, ceiling fan, install or repair bath exhaust fan, opening & closing service for swimming pool, power washing, repair countertops, small staining or painting project, install, repair or replace caulking, install or refurbish mirrors, install or repair acoustic ceiling tiles & accessibility modifications request in East York and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with 15503175 Canada Inc. now to discuss your needs and arrange a quote.

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  • HVAC contractor in Thornhill, Ontario

    Mirza Mechanical — Quality Work. Honest Service. Reliable Results. I have been doing plumbing over 20 years

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4.8

Top rated HVAC contractors

Our HVAC contractors in Thornhill, Ontario, are rated 4.8 out of 5 based on 441 reviews from homeowners like you.

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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.

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