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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.

A water heater installer wearing overalls wraps plumbing tape around a fitting on a water heater.

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

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  • Water Heater Installer 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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  • Water Heater Installer in Thornhill, Ontario
    • 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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  • Water Heater Installer 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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  • Water Heater Installer 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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  • Water Heater Installer 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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  • Water Heater Installer 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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  • Water Heater Installer in Thornhill, Ontario

    Drain Hero Inc. – Professional Drain & Plumbing Services At Drain Hero Inc., we specialize in fast, reliable, and professional drain and plumbing solutions for residential, commercial, condominium, property management groups, and plumbing companies across the Greater Toronto Area. With over 25 years of hands-on experience, Drain Hero Inc. delivers dependable plumbing and drain solutions. We are a hands-on company where the owner is actively involved on-site to guarantee quality service. Our work is backed by a lifetime warranty for your peace of mind. Our team is committed to providing high-quality workmanship, honest pricing, and dependable service. Whether it’s a simple drain blockage or a complex plumbing repair, we take pride in diagnosing the problem quickly and delivering effective long-term solutions. Our services include: • Drain power cleaning and flushing • Drain Power jet flushing • Video/CCTV camera drain inspections • Advanced efficient drain locating technology to accurately pinpoint plumbing issues and determine the exact depth for excavations. • Kitchen and bathroom drain repairs. •Specialized confined space stack cutting to install proper maintenance access for stacks. •Stack cleaning and maintenance. • Cleanout installations. • P-trap repairs and replacements. • Main drain and drain services. • Water line and plumbing repairs. • Preventive drain maintenance for condominiums, buildings, and homes. • New plumbing roughing for residential and commercial. At Drain Hero Inc., we believe in accurate diagnosis the first time. We use professional equipment and modern technology and ensure long-lasting results. Customer satisfaction is our priority. From small residential repairs to large building maintenance projects, you can count on our team to deliver professional service, transparent communication, and quality results every time. Serving Toronto and the Greater Toronto Area.

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  • Water Heater Installer in Thornhill, Ontario

    At Climate Source we strive to provide customers with professional, personable and reliable service. We are a family owned and operated business providing our clients with the best quality service. Skilled service technicians provide a wide range of services from at home installations and repairs, to commercial installations and service. Our high efficiency products aim to reduce energy consumption, a benefit for both the client and the environment. Climate Source is a fully licensed TSSA contractor and upholds the highest standards in product safety and function.

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  • Water Heater Installer in Thornhill, Ontario
    • Best of the Best 2023
    • Best of Awards 2026

    HVAC experts provide sales and service for all types of Furnaces/Air Conditioners/Heat Pump /Water Heaters/Insulation /Water treatment services/ energy rebates, and more

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  • Water Heater Installer in Thornhill, Ontario

    PK Heating & Cooling Inc. is a trusted HVAC company serving Toronto and the Greater Toronto Area since 2010. We specialize in the installation, maintenance, and repair of furnaces, air conditioners, boilers, water heaters, tankless systems, and custom ductwork for both residential and commercial clients. Fully licensed and TSSA certified, we are committed to delivering high-quality workmanship and exceptional customer service. Our services come with a 10-year parts and 1-year labor warranty, ensuring peace of mind for our clients. Whether it's a new installation or routine maintenance, we're here to keep your indoor environment comfortable year-round.

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  • Water Heater Installer in Thornhill, Ontario

    At Division Air Heating & Cooling, our mission is to install and maintain safe, comfortable and reliable heating, ventilation and air conditioning systems for our customers. We aspire to carry an excellent reputation for our clientele in the residential market across the Greater Toronto Area. We strive to achieve and perfect this by having our team of licensed technicians constantly updating their skills through frequent manufacturer training seminars in order to provide our customers with the best service and the newest technology. We offer our services at a reasonable cost which will satisfy customer needs, while never sacrificing excellence in workmanship and customer satisfaction.

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  • Water Heater Installer in Thornhill, Ontario

    Providing top-quality HVAC installation services with Great Professional Technicians (GPT). We specialize in furnaces, boilers, heat pumps, ductless air-conditioners, tankless water heaters, and water tanks, ensuring comfort and efficiency. Trust us for reliable solutions and expert craftsmanship in every job we do!

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  • Water Heater Installer in Thornhill, Ontario

    Experienced custom home electrician.

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  • Water Heater Installer in Thornhill, Ontario

    Wintrup Property Management and Construction provides professional groundworks, excavation, drainage and waterproofing services for residential and commercial properties throughout the GTA. With extensive experience in construction and real estate development, we understand how water, grading, drainage and foundation issues can affect a property—and how to fix them properly. Our services include foundation excavation, exterior waterproofing, foundation membrane installation, weeping tile replacement and repair, drainage improvements, grading, trenching, sump and water-management solutions, concrete removal and site preparation. We can also coordinate excavation equipment, material removal, backfilling and restoration. We focus on identifying the source of the problem rather than simply covering up the symptoms. Whether you have a leaking basement, wet foundation wall, poor drainage, damaged weeping tile or need excavation for a construction project, our goal is a practical, durable solution. Clear communication, professional workmanship and respect for your property come standard.

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  • Water Heater Installer in Thornhill, Ontario

    Welcome to BricksByBaz 🧱 We specialize in brick painting, restoration, waterproofing, and masonry repair across the GTA. Our focus is simple—clean finishes, proper preparation, and results that last. Every project includes pressure washing, crack repair, and detailed prep before any coating is applied. No shortcuts. Just quality work backed by a warranty.

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  • Water Heater Installer in Thornhill, Ontario

    Welcome to our ideal, mechanical With over five years of experience serving the GTA and surrounding areas, we specialize in the installation, maintenance, and repair of furnaces, air conditioners, heat pumps, hot water tanks, HRV/ERV systems, tankless water heaters, combi boilers, ductwork, and commercial and residential gas lines. We are fully licensed, insured with $5 million liability insurance, and WSIB covered. Our team is also certified for working at heights and lift operation, ensuring safety and quality in every job.”

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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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