Some of our top rated boiler repair specialists in Thornhill, Ontario
Sort by:
- Get in touch
We offer full plumbing and gas service, maintenance and installations. Gas appliance maintenance, repair and installations. New construction, renovations, repair and maintenance
- Get in touch
Twin Spark Mechanical Inc. is a licensed HVAC company based in Toronto, providing professional installation, repair, and custom design services for both residential and commercial applications. Our expertise spans heating, air conditioning, radiant floor systems, heated driveways, and commercial refrigeration systems such as walk-in coolers and freezers. The company was founded by Philip Ou, a licensed G2 and 313A technician with a Master’s Degree in Mechanical Engineering from University of Toronto. With over a decade of experience as a Senior Product Design Engineer at a leading HVAC manufacturer, Philip brings deep technical expertise in commercial system development, energy optimization, and system reliability. Our Mission is to deliver reliable, energy-efficient, and customized HVAC solutions with engineering-grade precision and a strong commitment to long-term client satisfaction. Our Service Promise includes fully licensed and certified technical execution, tailored system designs for every project, prompt response and reliable after-service, use of premium-grade equipment for durability as well as honest pricing with no hidden costs. Twin Spark Mechanical Inc. is your trusted partner for high-performance HVAC solutions.
- Get in touch
We are proud to announce we do the best, fast and reliable service and install. we are expert in diagnostic and troubleshooting. knowledge and experience on big, complex units are BAY TECH HEATING AND COOLING INC uniqueness. give us a call at 647-309-0195.
- Boiler repair specialist in Thornhill, OntarioGet in touch
Best of the Best 2025
Best of Awards 2025
From the first day that we opened our doors, our mission at Temp-A-Sure has always been to help our customers and their families stay comfortable no matter what the weather looks like outside! As heating and air conditioning specialists based in Toronto and serving the GTA, we take our role seriously; after all, your home is a big investment, and your heating and cooling systems should run smoothly year-round. All of our Tempasure team members are trained heating and air conditioning specialists… and this include our top management. We know that it can be a challenge to decide which people to bring into your home to work on your furnace, air conditioner, hot water tank and/or gas line. That’s why we’ve built a reputation in the Toronto region for excellence.
- Boiler repair specialist in Thornhill, OntarioGet in touch
Pro Renovations & Custom Home Builders can help you with your house renovation, build new house, install or renovate bathroom, install or renovate kitchen, build sunroom, extension, build garage, build or renovate basement, build pergola, gazebo or garden house, build carport, install or replace beam, install or repair lift/elevator, build shed, general contractor service, structural work for construction, build shelter or outbuilding, carpentry framing, install, repair or replace caulking & accessibility modifications request in Woodbridge and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with Pro Renovations & Custom Home Builders now to discuss your needs and arrange a quote.
- Get in touch
Need a HVAC contractor, Flooring Contractor, Handyman, Plumber, Cleaning company, Appliance repair specialist, Renewable Energy Specialist, Home Electronics Specialist, Fireplace and BBQ Specialist, Refrigeration specialist, Electrician & Excavation Specialist based in Toronto or nearby? Aircare mechanical solutions inc 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
Need a General contractor, Window Contractor, Kitchen Renovation Company, Electrician, Handyman, Carpenter, Plumber, Tiler, Bathroom Renovation Company, Interior designer, Concrete Specialist, Condominium/Apartment Specialist, Interior decorator, HVAC contractor & Architect based in Richmond Hill or nearby? Shun Tat 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
I have over 10 years of experience in this trade, providing reliable and professional HVAC services across the GTA and surrounding areas. Our company specializes in the installation, repair, and maintenance of both commercial and residential HVAC systems, including gas lines and ductwork. We take pride in our workmanship and customer satisfaction — feel free to check our Google reviews to see what our clients say about us.
- Get in touch
Installation, maintenance, and repair of HVAC equipment including furnaces, air conditioners, and ventilation systems. Running gas lines and performing leak testing to ensure safety and compliance with codes. Fabrication and installation of ductwork systems to ensure proper airflow and system performance.
- Get in touch
We're an HVAC Company servicing Toronto and the GTA. We pride ourselves on offering a life-time unit replacement warranty, price match guarantee, and transparent service.
- Get in touch
- Best of the Best 2024
- Best of Awards 2024
Pacific Home Comfort Experts has been a trusted name in the heating and cooling industry for over 25 years. We specialize in the sale, service, and installation of high-quality furnaces, air conditioners, and indoor air quality systems. Our comprehensive HVAC solutions cover everything from ductwork and gas line installations to forced air and high-velocity hydronic systems. We’re dedicated to delivering high-performance systems and expert installations to meet every customer need. Our team of licensed, insured, and highly skilled professionals is committed to your satisfaction. We are fully covered by the Workplace Safety & Insurance Board (WSIB), operate under the Technical Standards & Safety Authority (TSSA), and are proud members of the Heating, Refrigeration & Air Conditioning Institute of Canada (HRAI). At Pacific Home Comfort Experts, we recognize that your HVAC system is a significant investment. That's why we ensure transparent communication and take the time to address all of your concerns. Whether you're installing a new forced air system, or a high-velocity hydronic system, or need customized ductwork and gas line work, we use the highest-quality products and materials for reliable, optimal performance. We take pride in our work and are dedicated to providing integrity-driven, top-tier service with no compromise on quality. Our reputation for quality workmanship and customer satisfaction has earned us loyal clients who continue to return and refer others to us.
- Get in touch
- Best of Awards 2021
For over a decade, Extel Gas has been delivering high-quality heating and cooling solutions to residential and commercial properties across the Greater Toronto Area. Whether you're upgrading an existing system or installing a new one, our expert team ensures seamless design, installation, maintenance, and repair services. We specialize in a variety of heating systems, including gas boilers, hybrid systems, and high-efficiency natural gas furnaces from trusted brands like York, Lennox, Keeprite, Goodman, and more. Our air conditioning services feature split and ductless systems designed to keep your space comfortable all year round. In addition to heating and cooling, we offer reliable hot water tank solutions with premium products from brands like Johnwood, Rheem, Bradford White, and GSW. We also provide combi boilers and hybrid systems from leading names like Navien and Rinnai. Our HVAC installation and maintenance services cover both small commercial buildings and residential homes, including custom sheet metal duct installations and high-quality air handlers. Whether you're looking for a furnace to stay warm in the winter or an air conditioner to beat the summer heat, we ensure every system we install or service is efficient and built to last. At Extel Gas, we believe in offering transparent pricing and excellent value for your investment. We provide in-home cost estimates and are happy to approve price matches for quotes, ensuring you get the best deal possible. We offer weekend appointments for your convenience, and if we're not busy, we can often complete the job on the same day you call. With our 24/7 availability and same-day service options, we're here when you need us most. Our energy-efficient solutions are designed to lower your utility bills while delivering comfort and peace of mind with every service.
- Boiler repair specialist in Thornhill, OntarioGet in touch
Fully certified by TSSA , HRAI and Liability Insurance. Reasonable and Fair Prices
- Get in touch
Best of Newly Listed 2025
What We Do ─── At A.C.S. we truly do believe that we maintain the highest standard of service and workmanship. Every element of our business is designed to deliver optimal results to you, the homeowner. From our industry-leading training practices to our comprehensive 120 point inspection, your needs are paramount in everything we do. Installation ─── Providing the optimal combination of energy efficiency and comfort our furnaces and air conditioners will save you more money while also doing their part to help the environment. It doesn’t hurt to consider a furnace with an Annual Fuel Utilization Efficiency, also known as a AFUE rating, and an air conditioner with higher SEER ratings. A higher rating indicates that the furnace and air conditioner are more energy efficient, will last longer and will save you money. But this is only possible if it's installed to A.C.S's high standards. Duct Cleaning ─── Whether you suffer from seasonal allergies, sinus problems, asthma or other respiratory issues, Affordable Climate Solutions superior vent and duct cleaning services are the fastest way to reduce air pollutants. Even cigarette smoke, pet dander and dust can be eliminated to make your heating and air conditioning systems operate more efficiently, saving you money. Don't let HVAC systems fall into disrepair from neglected maintenance. Plus have the benefit of not having to clean up dust and others particles which may be navigating through your duct system. Repair & Maintenance ─── As professional HVAC experts, we are well-versed in both heating and cooling system repairs, and pride ourselves on our expertise, tools, and skilled technicians to ensure a job well done. A.C.S. we keep up with advanced digital technology to accommodate a wide range of brands and equipment repairs. We are dependable and professional. We never cut any corners when it comes to your comfort needs. Discover our commitment to quality with A.C.S.! Attic Insulation ─── As experts we at A.C.S. agree that the majority of heat loss or gain that takes place in a home is done through its attic. This estimated heat loss can be as high as 45% depending on what type of insulation your attic has. With an alarming potential for heat loss like that it’s easy to see why you need to pay special attention to how your attic is insulated. In winter, when you heat your home that heat rises and your attic insulation is the first line of defense to stop that heat loss and save energy. In summer, hot humid air also penetrates into your attic and makes your home harder to cool. Hot Water Heating ─── After home heating, hot water tanks consume the most energy in your home. Control your home energy costs by choosing a more energy-efficient hot water tank . Owning a new Water Tank helps manage cash flow, and comfort! Get a Smart Solution for Hot Water Heating. Old tanks generally contain build- up and sediment that makes it less efficient and water quality suffers. An A.C.S. installed water tank is energy-efficient and can help you start saving money immediately. You can reduce the overall costs of operating your water tank with us. Tank-Less Solutions ─── As professional HVAC experts, we are well-versed in both heating and cooling system repairs, and pride ourselves on our expertise, tools, and skilled technicians to ensure a job well done. At A.C.S., we keep up with advanced digital technology to accommodate a wide range of brands and equipment repairs. We are dependable and professional. We never cut any corners when it comes to your comfort needs. Discover our commitment to quality with A.C.S! Give us a call - 647-717-7282
- Get in touch
- Best of Newly Listed 2025
We are your go-to experts for all things HVAC. Whether you need installation, service, or repair, we've got you covered. From furnaces to air conditioning, heat pumps to tankless water heaters, and everything in between, we ensure your home stays comfortable all year round. Our services also include mini-split systems, traditional water heaters, and top-of-the-line water and air filtration systems. Trust us for quality workmanship and superior service. **Please note that unfortunately we do not service condos/apartments buildings at this time.
- Get in touch
Keeping your home warm in the winter is challenging enough. Now that summer is here, you want your home to be cool and comfortable in the hot weather. The experts at Heating Ontario are qualified air conditioning contractors; they'll help keep you cool in the summer, just like they help keep you warm during the winter. Heating Ontario air conditioning contractors specialize in finding the right system for your home. No matter what size your home is, you can be sure our expert technicians will devise a plan to keep your home cool without breaking the bank. They'll make sure your indoor environment is healthy and comfortable, giving you options for choosing the air conditioning system that is right for your home and your family. Whether you need a brand new air conditioning unit or an assessment of your current system, Heating Ontario's air conditioning contractors are standing by to help you decide which options are best for you. We repair and install cooling systems from the same quality brands as our furnaces, so when you need a new unit, you know you are getting the best. Our affordable installation and service prices make it easy to upgrade or maintain the system you have. We service and install the most energy-efficient cooling systems, so you can chill out without worrying about running up a big hydro bill. Now is the time to make sure your cooling system is in top shape for summer. Our air conditioning contractors service all of Toronto and the GTA. Fill out the form below to inquire about a consultation. Our experts are standing by waiting to hear from you.
