How do I know if my water heater needs to be repaired or replaced in Mississauga?

As a general rule, if your unit is under 10 years old and the issue is isolated to a single component, a repair is usually the more cost-effective option. If your unit is older, leaking from the tank itself, or has needed multiple repairs in a short period, replacement is likely the better long-term choice for your Mississauga home.

How long does a water heater repair take in Mississauga?

In Mississauga, most standard repairs, such as replacing a thermostat, heating element, or pressure relief valve, can be completed within one to two hours. More involved work, such as a gas valve replacement or leak repair, may take longer depending on the complexity and accessibility of the unit.

Can I use my water heater while it's being repaired in Mississauga?

In most cases, a professional will need to shut off the unit to carry out repairs safely. Your pro will let you know what to expect before work begins, including how long you can expect to be without hot water.

What are the most common signs that a water heater needs repair in Mississauga?

The most common indicators include inconsistent water temperature, discoloured or rust-tinged water, unusual noises such as rumbling or popping, and visible leaks around the unit. If you notice any of these in your Mississauga home, it's worth having a professional take a look before the issue gets worse. Post your job on HomeStars to connect with local water heater repair pros in Mississauga today.

What warranty coverage should I expect for hot water heater repairs in Mississauga?

Warranty coverage in Mississauga varies depending on the unit, the part being replaced, and the professional carrying out the work. Most manufacturers offer parts warranties ranging from one to several years, while labour warranties are typically provided separately by the pro. It's worth confirming both before work begins so you know what's covered if an issue comes up again.

Do I need a permit for water heater repairs in Mississauga?

Minor repairs such as replacing a thermostat or heating element generally do not require a permit in Mississauga. However, work involving gas lines, electrical connections, or venting modifications may be subject to local permit requirements. If you're unsure, the professionals on HomeStars are familiar with local code requirements and can advise you on what applies to your specific repair.

Find Water Heater Repair Pros in Mississauga

Name: Water Heater Repair Specialist
Brand: HomeStars
SKU: water-heater-repair
Rating: 5 (9 reviews)

Some of our top rated water heater repair specialists in Mississauga

358 Results

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Galaxy Plumbing Inc.
Rating: 4.9 out of 5
Water Heater Repair Specialist in Mississauga
Galaxy Plumbing Inc. is experinced with licensed master plumbers. We are certified with the city of Toronto and Mississauga for any plumbing rebate programs they offer to home owners. We use the most advanced technology to provide customers with the highest quality service. Galaxy Plumbing Inc. uses only premium valves and potable water lines along with over sized 2″ shower & kitchen drains for worry free drain problems in the future! We are a licensed and insured company, committed to always performing high-quality, professional work for our customers with prompt service and complete attention to detail. Galaxy Plumbing Inc. is open and transparent with their clients about every step of the way.
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Latest review:
Rob and his team had to do a superior job when dealing with a residence for a designer and engineer that are perfectionists and have a working knowledge of how to do things ourselves. Time had come to relinquish control if we could find a company to suit our needs. They worked with us when we had specific requests and were very transparent with everything they were doing. Initially we tended to hover but quickly realized they deserved our complete trust. We wanted only quality products and even when we supplied some of our own specialty items they knew exactly how to ensure everything was done perfectly. We've recommended them to friends who were also completely satisfied. Thanks Galaxy
HR Plumbing and Mechanical Services Inc.
Rating: 4.7 out of 5
Water Heater Repair Specialist in Mississauga
Best of Awards 2026
Best of Newly Listed 2025
HR Plumbing and Mechanical Services Inc is a leading provider of comprehensive plumbing solutions, committed to delivering excellence in every aspect of our work. With years of experience and a team of skilled professionals, we specialize in offering top-tier plumbing and mechanical services to residential, commercial, and industrial clients. Contact us today!
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Latest review:
Install or replace water supply and drainage- 30 Jun 2026
Initial contact, professional. Negotiation, respectful. On site appointment. On time. Work completion. Excellent. Recommend? Yes.
Vision to Home Renovations
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
NO DEPOSIT for most jobs. Transform Your Space with Vision to Home Renovations. We shape the unseen into the unforgettable. Serving Mississauga and Surrounding Areas. Whether you're planning interior renovations, need repairs, or want to upgrade your outdoor space with a new deck or fence, Vision to Home Renovations is here to help. Jason is ready to listen, advise, and bring your vision to life — no project is too big or small. Fully insured and licensed. Let’s connect to discuss your needs and arrange a free, no-obligation quote.
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Latest review:
Repair floor- 30 Apr 2026
Excellent! Jason was professional, accurate, punctual and kept us informed and updated on every aspect of the project. The finished floor repair looks amazing and blends in so well with the rest of the floor- you would never know it was a repair. Thank you Jason, it was a pleasure to have you in our home!
ANTA Plumbing
Rating: 4.8 out of 5
Water Heater Repair Specialist in Mississauga
Best of Awards 2020
AnTa Plumbing is experienced Licensed Master Plumbers, Drain Technicians fully licensed and insured. AnTa Plumbing is certified by Municipality to provide services for our customers in plumbing, drain, water supply line services. Our company is certified by City of Toronto, Oakville, Mississuaga, Milton, Brampton, Hamilton to apply for any plumbing, drain REBATE PROGRAM as Back-Water valve installation rebate, sump pump installation rebate, new toilet installation rebate. Find more infomation on our web site! We use the most advanced technology to provide high quality service.
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Latest review:
Install or repair water heaters- 31 Jul 2025
Very professional, excellent job, well fixed. Thank you very much,
Cold Air Comfort
Rating: 4.9 out of 5
Water Heater Repair Specialist in Mississauga
Hot Water Service & Installation Pool Heating and Indoor Dehumifification Air Conditioning Boiler Service & Installation In floor Heating Snow-Melt Driveway Furnace Service & Installation Heat Pump Service & Installation Make-Up Air, Exhaust Fan Service & Installation Rooftop Unit Service & Installation Gas Piping Services & Installation
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Latest review:
Install or repair water heaters- 27 Mar 2025
They completed the job quick. We appreciate the advise given when we didn't know what to do. The we're also reasonably priced. Will recommend to others :)
Mas Air Home Comfort
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
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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Latest review:
Install or repair water heaters- 6 Nov 2025
Andy and Neil’s team were absolutely fantastic! They arrived on time, were super friendly, and handled everything with total professionalism. They took great care to protect our floors and safely remove the old water heater. The installation of the new unit was perfect — clean, efficient, and well-done. I really appreciate their attention to detail and the pride they take in their work. Highly recommended for anyone looking for reliable, professional service!
Allied Connections Electrical Solutions Inc.
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
Lucas is the owner and master electrician of Allied Connections Electrical Solutions Inc. He is deeply passionate about providing quality installations in well designed spaces. With a background in commercial electrical installations on medium to large scale projects, he is capable of following detailed plans on a tight schedule. His attention to detail, cleanliness and excellent customer service makes Allied Connections Electrical Solutions the perfect contractor for your next project. Let's build something!
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Latest review:
Small electrical jobs- 1 Oct 2025
Awesome work. Great communication to help troubleshoot the problem and figure out what I needed, which led to a great finished product.
Calibrated Air Systems Ltd.
Rating: 4.5 out of 5
Water Heater Repair Specialist in Mississauga
For the past 25 years Calibrated Air Systems Ltd. has been servicing and installing Heating / Air Conditioning and Refrigeration for Residential and Light Commercial Equipment. We service all makes and models of Furnaces and Air Conditioners. We supply and install Unit Heaters.We run gas lines as well for bbq's/stoves Fully Licensed /fully insured/Customer Satisfaction is our goal! Sales/repairs/ Maintenance and Installation of residential and Commercial Heating / Air Conditioning and Refrigeration Equipment
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Latest review:
Steve and his team recently completed a furnace and water tank replacement. They were professional, very competent and efficient. I felt confident with Steve and his team and would highly recommend them.
Avis Heating & Air Conditioning Inc.
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
Complete Heating, Cooling, Ventilation and Gas Services. We are reliable service providers when it comes to installation, service, repair and maintenance of your residential or commercial comfort needs. We repair and service any make and model of furnace, air conditioning, water heaters, air control units and more. Avis also installs the latest in outdoor fire pits, fire tables and pool heating solutions.
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Latest review:
Replaced my Humidifer within 2 hours. Added a new water connection. everything works well. Found them pleasant and efficient.
Seasonal Home Comfort
Rating: 4.9 out of 5
Water Heater Repair Specialist in Mississauga
Best of Awards 2021
Take comfort in knowing who we are and what we stand for. The Seasonal Home Comfort team has a combined 25 years of experience in the HVAC industry. Our service and dedication to exceeding customer expectations is unparalleled. We do what we say we are going to do – it’s called integrity and it’s what Seasonal Home Comfort clients have come to expect. We offer the following services: • Air Conditioners • Heating/Furnaces • Hot Water Tanks • Air Cleaners • Gas Lines • Humidifiers • Tankless • Thermostats • Cleanings • Repairs • Installations and more
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Latest review:
Fantastic service from first visit to installation. Went above and beyond what we expected. Highly recommended.
Nassar plumbing & renovations
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
Best of Awards 2026
Nassar Plumbing & Renovations is a professional plumbing company that prioritizes quality over quantity .With an experience of over 12 year in the the industry, we specialize in all aspects of residential and commercial plumbing in Toronto and all surrounding areas.We strive to provide exceptional customer service and quality workmanship, building long-lasting relationship with our clients by consistently delivering results that exceeds their expectations . Contact us today to schedule an appointment and ask for Azan. Checkout our website.
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Latest review:
Stop leakage- 3 Aug 2026
Fast and timely repair of my faucet leak. Professional, efficient, and everything was fixed properly. Thank you!
Gas Line Installers
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
Best of Awards 2026
Gas Line Installers has been installing and repairing H.V.A.C equipment for 20 years. We are independently owned and operated. We deliver quality service combined with quality products to all our customers. All our technicians are licensed and insured and will take the time to go above and beyond their job description. Call us today for a free quote 647-234-9596 or connect with us through a video call for quicker results.
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Latest review:
Install or replace gas systems and pipes- 24 Jun 2026
Super responsive and dispatched someone extremely fast for a fair price. Great job
Fair HVAC
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
Best of Awards 2026
Fair HVAC can help you with your install or replace heating systems, install or replace airconditioning, repair or maintain airconditioning, repair or maintain heating system, install or replace household appliances, install or replace heatpump, repair or maintain heatpump, install or repair water heaters & air cleaners and humidifiers request in Brampton and its surrounding cities. They’re at your disposal to listen and assist you in all your projects. Get in touch with Fair HVAC now to discuss your needs and arrange a quote.
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Latest review:
Repair or maintain airconditioning- 16 Jul 2026
Joe answered the post immediately, came within the hour, gave me solid options and once I made a decision to repair, was there the next morning. He has since checked in several times to ensure AC is working well. I would highly recommend him, and in fact already have to a friend.
JG Appliances & Refrigeration Repair Inc
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
JG Appliance & HVAC Services specializes in providing professional, affordable installation and servicing for a variety of appliances and HVAC systems. Here’s a breakdown of what we do: Our Services ✅ Appliance Installation • Dishwashers • Washing Machines & Dryers • Refrigerators (including fridge line setup) • Gas Stoves & Ovens ✅ HVAC Installation & Maintenance • Air Conditioners • Furnaces • Humidifiers • Water Tanks (installation and replacement) ✅ Gas Line Services • Gas Line Installation & Relocation • BBQ Gas Line & Hookups ✅ Service & Repairs • Maintenance and repair of gas appliances (stoves, dryers, and more) • Inspection and servicing of HVAC systems Service Areas: Milton, Oakville, Burlington, Hamilton, and Etobicoke. We take pride in delivering reliable, efficient, and customer-focused services, ensuring your home appliances and HVAC systems operate safely and smoothly. We offer: • 1-Year Warranty on all installation jobs • 6-Month Warranty on all servicing and maintenance work And of course, we stand behind the quality of every job we do done right the first time, with care and precision. Reliable. Professional. Guaranteed.
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Latest review:
Repair household appliance- 15 Mar 2025
Great service quick diagnosis. Thanks JG
Airman HVAC services inc
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
Airman Heating and Cooling is a trusted HVAC service provider proudly serving homeowners across Mississauga, Brampton, Milton, Oakville, and Caledon. We specialize in delivering reliable, efficient, and affordable heating, cooling and water heater solutions tailored to your needs.
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Latest review:
I had a great experience with Airman HVAC Services. My furnace stopped working unexpectedly, and they were able to come out the same day and get everything up and running again. The technician was professional, knowledgeable, and took the time to explain what was going on and how they were fixing it. They worked efficiently and made sure my heat was fully restored before leaving, which I really appreciated—especially given how important that is. The whole process was smooth, stress-free, and the quality of their work was excellent. I highly recommend Airman HVAC Services to anyone in need of fast, reliable, and high-quality HVAC service!
Antec Plumbing Limited
Rating: 5 out of 5
Water Heater Repair Specialist in Mississauga
Welcome to Antec Plumbing Limited Commercial-Residential and Industrial experience at your service.
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Latest review:
I am very pleased with work performed by Antec Plumbing on various residential and commercial projects completed by them. Their response times are quick, pricing is fair, and communication and workmanship is excellent. Always a pleasure working with Antec.