Professional Hot Water Tank Repair & Maintenance
We provide reliable repairs, and regular maintenance for water heaters to ensure they work all year round.
Trusted By
+50,000 Customers
Professional Water Heater Servicing Across the GTA
Hot Water Tank Service and Repair
Diagnosis & FixUnfortunately, hot water tanks occasionally break down. High Efficiency is here for you! We have a fully equipped team of emergency specialists to assist you with any hot water tank problems. Day or night, winter, summer, spring, or fall, we are ready to take your call!
Hot Water Tank Maintenance
Seasonal & Annual PlansWe always recommend regular maintenance appointments for your hot water tank to ensure optimal functionality. Ensuring your hot water tank is serviced regularly will give your unit better longevity and fewer operational mishaps.
Common Hot Water Tank Problems
If you encounter a hot water tank failure in the deep cold of winter, High Efficiency is here to help. One phone call to our office and one of our licensed technicians is on their way to resolve the problem for you!
Here are some of the most commonly seen problems with hot water tanks:
Book AppointmentAre you experiencing inconsistent water temperatures in your heater? Is the water too hot or not hot enough, regardless of how you adjust the thermostat? These issues may indicate problems with your thermostat. Replacing or cleaning your thermocouple may be necessary to ensure precise temperature sensing. This will help restore its accuracy and maintain optimal performance.
The thermocouple is a critical part of the water heater, and any problems with it can lead to malfunctioning thermostats. That's why regular unit maintenance is essential, as it helps ensure that all components are in working order.
Leaking tanks are one of the most common issues with water heaters. If left unattended, a leaking tank can cause significant damage to your home. It's essential to check your unit regularly for any signs of corrosion or rust, and if you do see any evidence, contact a professional immediately.
If your water heater makes noises that it doesn't usually make, this may indicate a problem with the system. Common culprits are air in the lines, sediment buildup, or even loose connections inside the unit.
In older homes, the primary factor restricting water pressure is the smaller ½" plumbing, which was the standard for construction for many decades. Unlike modern homes that utilize larger ¾" plumbing, capable of handling greater water throughout, resolving this issue in an older home requires a complete repiping.
If your hot water tank has difficulty heating up, it could be due to a clogged burner. This can occur over time as dirt, dust, and lint accumulate on the burner, eventually blocking its ability to heat up properly. It's important to have this checked out as soon as possible to avoid further damage or a complete failure of the unit.
Sediment buildup can hinder the performance of your hot water tank by reducing its efficiency. As sediment accumulates over time, it will block cold water intake, leading to inadequate heating capacity and potential clogging in the unit.
The High Efficiency Difference?
Our customers choose High Efficiency because of the commitment in quality service, and predictable fair pricing. Our team is comprised on licensed and experienced professionals and our work is backed by multi-year warranty. With High Efficiency, customers get a peace of mind that the job is done right, even when you don't know where to look.
Licensed And NATE Certified Technicians
Our technicians are licensed, insured, and NATE certified, giving you complete peace of mind. Licensed with additional in-house training, our team is prepared to deal with various HVAC equipment issues and failures.
Continuous Care Made Easy
We know your equipment, service history, and maintenance needs—so every visit is convenient, informed, and proactively managed.
20+ Years Serving the GTA
Founded in Markham in 2005, we know GTA homes, condo buildings, and commercial properties inside and out.
Stellar Reputation, 5 Star Reviews
Our reputation is built one honest job at a time. Read what your neighbours are saying on Google.
See our Google ReviewsReady to Get Started?
Our four-step process makes your project as easy as can be!
Our team will evaluate your space or troubleshoot your existing equipment to discuss your specific needs, budget, and system requirements.
We'll provide you with a detailed, upfront quotation and agreement outlining the complete scope of the installation or repair work.
Our team of experienced technicians will perform the installation or repair quickly, efficiently, and to the highest industry standards.
Once the job is complete and tested, you can enjoy the reliable comfort, safety, and convenience of your fully functioning HVAC system!
Proudly Serving Toronto
and the Greater Toronto Area
High Efficiency provides professional HVAC services to homeowners, condominium communities, and businesses across the GTA, including same-day and next-day appointments in many service areas.
What GTA Homeowners Are Saying






Contact Us With Your HVAC Needs
High Efficiency Cooling and Heating offers reliable HVAC that meet your needs and budget. Our experienced team ensures you get the perfect system for your home or business, from consultation to installation. We look forward to helping you find the best cooling & heating solution for your needs.