Water Heater Service & Repair
When your water heater isn’t working properly — whether it’s leaking, not heating enough, or showing signs of wear — you can count on us for fast, dependable service.
Since 1994, we’ve been Ottawa’s trusted experts for water heater repair, maintenance, and replacement. Our certified technicians help restore your hot water quickly and safely, while extending the life and efficiency of your system.
Reliable Comfort Solutions for Every Season
Committed to customer satisfaction, quality workmanship, and fast, reliable service, count on us for professional furnace installation in Ottawa.


Water Heater Repair in Ottawa
When your hot water unexpectedly goes out, Harding delivers fast, reliable repairs. Our licensed professionals will quickly diagnose your water heater issue, present solutions, and restore your hot water.
Preventative Water Heater Maintenance
Preventative maintenance extends your water heater’s lifespan and ensures peak performance. Beyond preventing emergencies, regular maintenance optimizes efficiency and saves you money.
Have Questions? We’ve Got Answers
What are the signs my water heater needs repair?
How long does a typical water heater last?
Should I repair or replace my water heater?
How often should I schedule water heater maintenance?
Can I perform water heater maintenance myself?
What temperature should my water heater be set to?
Follow these water heater maintenance tips to help extend your tank’s life expectancy, lower energy bills, and minimize damage from leaks.
Keep the Area Around Your Water Heater Clear
Ensure that the space around your water heater is open and easy to access. Gas-powered heaters need proper ventilation to operate safely. Keeping the area clear also allows you to spot signs of leaks or corrosion early.
Lower the Temperature Setting
To effectively inhibit bacteria growth, set your water heater to a minimum of 120°F. Ideally, for optimal sanitation and to actively kill bacteria, you should set the temperature between 130-140°F. In this case, a mixing valve is essential to reduce the water temperature back to 120°F at your fixtures.
Flush the Tank
Over time, minerals and sediment from your water supply settle at the bottom of your tank or cling to the components of your tankless system. This buildup can cause a host of problems like reduced efficiency and even complete system failure. Regular flushes keep your water heater running efficiently, saving you money on energy bills and extending the life of your unit. They also help maintain consistent water temperature and pressure, giving you a more comfortable and reliable hot water supply.
Schedule an Annual Inspection
An annual inspection allows our technicians to clean and assess your water heater. We can detect issues early and make small repairs before they turn into bigger, more expensive problems. Routine maintenance also improves system efficiency and extends its service life.
Reliable Comfort Solutions for Every Season
With decades of experience, Harding delivers reliable heating solutions and expert care to keep your home comfortable year-round.
Top Brands
We carry the top, most reliable HVAC systems to ensure that our customers are getting the best possible products for their home comfort needs.
Professional Advice
High-quality furnace installations using trusted brands like Daikin, Goodman, and Bosch — delivered with precision and care by experienced professionals.
Fair Prices, No Surprises
Choose a furnace installation you can trust and say goodbye to hidden fees. The price you’re quoted is the price you pay - including full, professional installation.
Qualified Technicians
Our technicians are all highly experienced, qualified and fully licensed so they can provide the very best furnace installation and service.
Family Owned & Operated
Proudly serving Ottawa’s home comfort needs since 1994. By working with us, you’re supporting a local business & technicians throughout your community.
Flexible Payment Options
From initiatives, rebates, sales and incentives, to finding the perfect financing program for you, you’ll be able to find the right furnace for your budget.
Request Heating Service Information
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