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Find water heater installation pros in Thornhill, Ontario

It’s not always easy to find the right specialist to replace or install your new water heater. With HomeStars, you can compare multiple quotes, read real reviews, and make the hire all in one place! Find available water heater installation pros in Thornhill, Ontario who are ready to take on the job.

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Some of our top rated water heater installers in Thornhill, Ontario

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  • Water Heater Installer in Thornhill, Ontario

    Experienced HVAC professional specializing in residential service and installations. Skilled in furnace and AC diagnostics, electrical troubleshooting, refrigeration handling, and system performance optimization. Operates a fully equipped service van and manages tools, equipment, and business operations independently. Strong understanding of: • Furnace and air conditioning systems • Electrical diagnostics and control wiring • Refrigeration tools and procedures • Job site efficiency and safety Focused on delivering reliable service, practical solutions, and professional workmanship.

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  • Water Heater Installer in Thornhill, Ontario

    At Top Comfort, we are dedicated to keeping your home comfortable all year round. As a licensed and insured residential HVAC company, we specialize in the installation, repair, and maintenance of furnaces, air conditioners, heat pumps, water heaters, gaslines and ductless systems.

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  • Water Heater Installer in Thornhill, Ontario

    We do all type of renovations we provide best quality

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  • Water Heater Installer in Thornhill, Ontario

    ThermoPeak Heating and Cooling is the Greater Toronto Area’s (GTA) premier choice for high-efficiency climate control and precision gas piping. Unlike sales-driven franchises that rely on subcontractors, we operate on a strict Owner-Operator model. Led by licensed G2 Gas Technician, you deal directly with the expert. This ensures transparent pricing, accountability, and elite craftsmanship with zero middleman markups. ​As a TSSA registered contractor (FS-R-53856), safety is our absolute baseline. Every project strictly follows the Ontario CSA B149.1 gas code. We use first-principles troubleshooting to find the true root cause of mechanical failures, repairing what can be saved and replacing only what is necessary to save you money. ​Our Core Services: ​Furnaces: High-efficiency installation, emergency repair, and proper BTU sizing. ​AC & Heat Pumps: Central cooling and dual-fuel hybrid systems. ​Water Heaters: Tankless, hydronic, and conventional retrofits. ​Gas Piping: Custom CSST & black iron drops for stoves, BBQs, and heaters. ​Ductwork: Custom sheet metal fabrication for optimal airflow. ​We provide guaranteed 24/7 Same-Day Emergency Service across the GTA.

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  • Water Heater Installer in Thornhill, Ontario

    parwen constructers LTD can help you with your install or replace water supply and drainage, unclog drain and sewage pipes, install or repair faucets, repair toilet or toilet flush, install or repair bathroom fixtures, stop leakage, build or renovate well, install or replace water treatment station, install or replace septic tank or grease trap, clean or maintain septic tank or grease trap, install, replace or repair sewer main, install or replace drainage system, install or repair water heaters & install or replace garbage disposal request in Mississauga and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with parwen constructers LTD now to discuss your needs and arrange a quote.

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  • Water Heater Installer in Thornhill, Ontario

    Hello, my name is Cody. I’m here to take care of any heating, ventilation, air conditioning, and refrigeration (HVAC/R) needs you may have. I have been in the commercial and residential heating and cooling industry for over 8 years working for some of the largest companies in the Durham and GTA region. I am venturing out on my own to offer competitive rates and honest work. I will not do band aid fixes or cut corners to put more money in my pocket. Your comfort and safety is my priority. I am always looking to advance my reputation. Giving quality advice for your equipment. Service, maintenance, installation, and new construction. Have a great day!

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  • Water Heater Installer in Thornhill, Ontario
    • Best of Awards 2026

    Your hometown heroes for reliable 24 hour plumbing and drain services! At Red Leaf Plumbing and Drain, we pride ourselves on treating every job as if it's our own. Led by a local expert, our team is committed to delivering top-notch plumbing and drain solutions with a touch of family hospitality. Give us a call - 905-301-6788

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  • Water Heater Installer in Thornhill, Ontario

    At Hydrotech Development, we specialize in delivering reliable, high-quality HVAC solutions for residential and commercial clients. With years of hands-on experience in heating, ventilation, and air conditioning systems, we are committed to providing efficient, cost-effective services tailored to your needs. We offer a full range of HVAC services, including installation, maintenance, and repair of furnaces, boilers, water heaters, heat pumps, air conditioners, fireplaces, and ventilation equipment. Whether it’s a new system installation or renovation of an existing, we ensure every job is completed with precision and attention to detail. Customer satisfaction is at the core of our business. We take pride in honest communication, transparent pricing, and dependable service you can trust. We are proud to offer very budget-friendly pricing without compromising on quality, making professional HVAC services accessible and affordable to more homeowners and businesses. At Hydrotech Development, we stand behind our work and strive to build long-term relationships through professionalism, quality workmanship, and exceptional service.

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  • Water Heater Installer in Thornhill, Ontario

    Air Conditioning Installation Reliable Eco Home provides professional air conditioning installation services designed to keep your home comfortable and energy-efficient throughout the year. Our experienced technicians assess your home’s cooling needs and recommend the right system for optimal performance, comfort, and energy savings. Air Conditioning Repair & Maintenance We offer prompt repair and preventative maintenance services to ensure your AC system operates efficiently and reliably. Regular maintenance helps extend equipment life, improve performance, and reduce energy costs. Heating System Services From furnace installation to repairs and seasonal tune-ups, we help homeowners maintain a comfortable indoor environment during colder months with dependable heating solutions. Indoor Air Quality Solutions Improve the air you breathe with our indoor air quality services, including air purifiers, filtration systems, humidifiers, and ventilation solutions that promote a healthier home environment. Energy-Efficient Home Upgrades Our team specializes in eco-friendly upgrades that help reduce energy consumption, lower utility bills, and enhance overall home comfort while

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  • Water Heater Installer in Thornhill, Ontario

    Currently not taking Jobs.

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  • Water Heater Installer in Thornhill, Ontario

    At Maple Leaf Home Solutions, we may be a newer company—just 1 year in business—but our team brings over 15 years of hands-on experience in the HVAC industry. We’ve worked on a wide range of residential and commercial projects, from simple home furnace repairs to full heating and cooling system installations in large buildings. We proudly serve Mississauga and surrounding areas, offering reliable and efficient HVAC solutions tailored to your needs. Our expertise includes heating and cooling system installation, maintenance, repairs, ductwork, and energy-efficient upgrades. What sets us apart is our commitment to quality, honesty, and customer satisfaction. We treat every home like it’s our own, and we never cut corners. With deep knowledge of HVAC systems, industry certifications, and a true passion for the trade, we make sure the job is done right the first time. Choose us for your next HVAC project and experience friendly service, expert advice, and dependable results. We’re not just here to fix a problem—we’re here to build trust and keep your home comfortable year-round.

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  • Water Heater Installer in Thornhill, Ontario

    Setamin Construction provides reliable home repairs, electrical work, and HVAC services across Toronto and the GTA. Founded by Ali Aein, our team has over 15 years of experience in Iran and more than 6 years in Canada. All projects are completed by skilled professionals who focus on quality, attention to detail, and timely service. From small repairs to full renovations, Setamin Construction ensures your home is in capable and trusted hands.

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  • Water Heater Installer in Thornhill, Ontario

    No job is too small. Service 24 hrs Helping our community with FAIR prices and PROFESSIONAL work. Transparency is how we operate, you will know where your dollar is going every step of the way. Helping for a greener Ontario.

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  • Water Heater Installer in Thornhill, Ontario

    Wasim is a Mississauga based Handyman, Carpenter, Cabinet maker & Kitchen Renovation Company in addition to HVAC certified. Our goal is to provide quality service and excellent workmanship to our customers. If you need help with assemble or disassemble furniture & build furniture, message us so we can assist you and arrange a quote.

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  • Water Heater Installer in Thornhill, Ontario

    DRM Projects is a full-service general and electrical contracting company based in Toronto, Ontario. We specialize in residential, commercial, and light industrial construction and renovation projects, offering end-to-end solutions from planning and project management to high-quality execution. With a strong foundation in electrical contracting and a growing portfolio of full-scale construction work, we bring technical expertise, attention to detail, and a commitment to client satisfaction to every job. Whether it’s a full commercial fit-out, a custom home renovation, or specialized electrical installations, DRM Projects delivers professional, code-compliant, and cost-effective solutions. We’re fully licensed and insured, and we work closely with clients, engineers, and inspectors to ensure every project meets both your vision and Ontario’s building codes. Our team is known for reliability, clear communication, and getting the job done right—the first time.

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  • Water Heater Installer in Thornhill, Ontario

    Ask yourself when was the last time a technician gave you a print out of your combustion analysis or posted it on your furnace? If you’re not testing your guessing. Equipment these days doesn’t last longer than 10 years and everyone says they don’t make them like they used to… wrong, it’s not installed and commissioned properly, if it was they can last a lifetime. What you get with us is: Combustion Analysis for proper fuel combustion, airflow adjustment and static pressure test, both intake and exhaust piping, testing port on flue pipe, neutralizer, surge protector and proper gas sizing for upgrades to tankless which is imperative to proper operation. Look at any other ad and you won’t see any of the things listed. 1 year full parts and labour warranty followed by manufacturer warranty and free maintenance on your furnace and air conditioner after one year even if your only get one unit. Get it done right because you can never fix the damage done once a unit starts up miscalibrated. We only install top of the line modulating, variable speed furnaces, quietest and most efficient on the market.

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4.9

Top rated Water Heater Installers

Our Water Heater Installers in Thornhill, Ontario, are rated 4.9 out of 5 based on 25 reviews from homeowners like you.

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What services are available for water heater installation in Thornhill, Ontario?

Water heater installation pros in Thornhill, Ontario can offer a few different services to ensure your unit is in shape. Whether concerning an old system or a new one, they can advise on what’s best for your home.

Here are some of the most common services carried out by pros who offer water heater installation in Thornhill, Ontario:

  • Water heater installation: Setting up new tank or tankless water heaters
  • Water heater replacement: Swapping out old or failing units
  • Water heater repairs: Fixing leaks, faulty thermostats, or heating elements
  • System changes: Moving from a tank to a tankless system, or between gas and electric

A professional will be able to recommend which service you need. No matter your water heater needs, it’s easy to find a water heater installer in Thornhill, Ontario. Just post your project on HomeStars now, and available contractors in your area will register their interest!

What are the average costs of water heater installation in Thornhill, Ontario?

Water heater installation costs depend on several factors, including the type of unit (tank or tankless), the energy source, and your home's existing plumbing and electrical or gas setup.

Labour for a standard tank installation in Thornhill, Ontario generally ranges from $450 to $600, while tankless installations tend to run higher due to additional venting and connection requirements. Additional costs such as permits, disposal of the old unit, or upgrades to gas lines or electrical panels can also add to the overall project total.

Typical costs for common water heater installation services in Thornhill, Ontario include:

  • Water heater installation costs: $1,000 to $3,500
  • Water heater replacement costs: $1,000 to $3,500, with labour alone typically running $450 to $600 for a standard tank
  • Water heater repairs: minor repairs typically run $150 to $350; more involved work such as a gas valve replacement or leak repair can range from $300 to $750 or more
  • System changes: $2,000 to $5,000 on average, though costs can run higher depending on whether gas lines, electrical panels, or venting need to be upgraded

HomeStars tip: To ensure you get the most accurate costs for Thornhill, Ontario, make sure to get everything written down in an itemized quote. This avoids misunderstandings and supports transparency and clear communication for both you and the contractor.

How to get services for water heater installation in Thornhill, Ontario with HomeStars

Finding a pro who can help you with your water heater installation needs in Thornhill, Ontario can be challenging, but it doesn’t have to be. HomeStars allows you to skip the cold-calling and endless searching by connecting you with available contractors in Thornhill, Ontario who can help with water heater installation, replacement, and more.

Just follow these simple steps:

  1. Start by posting your project. Provide a clear description of your water heater installation needs and, if possible, include photos to get precise quotes.
  2. Receive offers from available pros, review work history, and read customer feedback for water heater installation in Thornhill, Ontario.
  3. Connect with water heater installation pros in Thornhill, Ontario to discuss your project, request and compare quotes, and ask any questions.
  4. Hire the right pro to get the job done and leave a review based on your experience.

HomeStars tip: Once your project is done, make sure to leave a review. Our review system ensures that pros are rewarded for good work and held accountable for any problems.

Pros on HomeStars undergo checks at registration – such as ID documents, company details, and certifications for regulated jobs and skill assessments – allowing you to hire with confidence.

Extra peace of mind with the HomeStars Confidence Program

The HomeStars Confidence Program is designed to give you added confidence when hiring through our platform. If your job qualifies under the Program and we determine that a claim meets the Program requirements, HomeStars may cover what you owe the Pro on an eligible job with a quote of up to CAD $10,000, in line with our terms and conditions.

FAQ: Common questions about water heater installation services in Thornhill, Ontario

How long does a water heater installation take in Thornhill, Ontario?

A standard tank water heater installation in Thornhill, Ontario typically takes two to four hours, assuming no major changes to existing plumbing or connections are needed.

Tankless installations or system conversions can take longer, particularly if venting, gas lines, or electrical panels require upgrading.

How do I know if I need a new water heater or just a repair?

Minor issues such as a faulty thermostat, a worn heating element, or sediment buildup can often be resolved with a repair. However, if your unit is over 10 years old, leaking from the tank itself, or requiring frequent service calls, replacement is usually the more cost-effective path forward.

Do I need a permit for water heater installation in Thornhill, Ontario?

A permit is usually required for water heater installation in Thornhill, Ontario, particularly when the work involves gas lines, electrical connections, or venting. It's worth confirming with your local building department before work begins.

You can find pros on HomeStars who are familiar with local code requirements and who can help ensure your installation is completed properly and up to standard.

What size water heater do I need for my Thornhill, Ontario home?

The right size depends on the number of people in your household and your daily hot water usage. As a general rule, a tank of 150 to 190 litres suits most households of two to four people, while larger households may need 270 litres or more.

Tankless units are sized by flow rate rather than tank capacity, so the right fit will depend on how many fixtures or appliances may be running at the same time.

Can a water heater installation pro in Thornhill, Ontario also help with cooling needs?

Many water heater installation pros also work across broader heating and cooling systems. If you need help beyond your water heater, HVAC contractors near you can assist with a range of home comfort needs.

Are there rebates available for water heater installation in Thornhill, Ontario?

Depending on the unit you choose, you may be eligible for rebates through federal or provincial programs, particularly for high-efficiency or heat pump water heaters. It's worth checking your eligibility with your local utility provider or energy efficiency office before making a decision.

Post your project on HomeStars to connect with local professionals who can help you choose a unit that meets both your household needs and any applicable rebate requirements.

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