Water heater repair and installation in London, Ontario
Reliable hot water starts here
Donaldson Home Services repairs, replaces and installs tank and tankless water heaters for homes in London and surrounding communities, from a water heater that suddenly stops working to an aging system that’s ready to be replaced. You’ll get upfront pricing before any work begins.
Is it time to repair or replace your water heater?
Losing hot water doesn’t automatically mean you need a new water heater. Some problems can be repaired, while an older or increasingly unreliable system may make replacement the better investment.
Your water heater may need attention if:
Donaldson can assess what’s happening, explain whether repair or replacement makes sense and help you choose the right next step for your home.
Reach out today!
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No hot water? We can help.
A failed water heater can disrupt everything from showers and laundry to dishes and cleaning. If you’ve suddenly lost hot water or found a leaking water heater, don’t wait. We offer 24/7 emergency service. Call us now and we’ll work to get a technician to your home the same day, subject to availability.
Professional water heater repair and installation
The right solution depends on what’s wrong with your current water heater, its condition and what your household needs from a replacement. Donaldson’s licensed technicians assess the system first, explain what they find and recommend the appropriate next step.
We’ll help you make an informed decision without pushing you toward a replacement you don’t need. We service all makes and models, including systems we didn’t install. For leaks elsewhere in the house, see plumbing repair, and if hard water is leaving scale buildup, ask about water treatment. We serve homes in London and surrounding communities.
What to expect
Whether we’re troubleshooting your existing system or installing a new water heater, we’ll make the process straightforward and keep you informed.
Step one
Schedule service
Call us now, fill out the form, text us or schedule online, whatever’s easiest. Tell us what’s happening with your current water heater or what you’re considering for a replacement, and we’ll arrange a convenient time to visit.
Step two
Assessment
We’ll inspect the existing system and relevant connections to determine what’s causing the problem. If you’re considering replacement, we’ll also look at your current setup, available utilities and household hot water needs.
Step three
Review options
We’ll explain what we found and whether repair or replacement makes sense. If you’re replacing the system, we’ll walk you through appropriate water heater options and provide upfront pricing before work begins.
Step four
Repair or install
Once you’ve approved the work, we’ll complete the repair or professionally install your new water heater. We’ll test the system and make sure you understand anything you need to know about your equipment before we leave.
Water heater brands we install
Donaldson installs tank water heaters from A. O. Smith, John Wood, Rheem, and Bradford White, and tankless water heaters from A. O. Smith, Navien, and Rinnai, with options for different homes, hot water needs and existing setups.
Water heater repairs backed by our 90-day repair guarantee
When Donaldson repairs your water heater, we stand behind the work. If we’ve been in your home within 90 days and you’re still experiencing the same problem, we’ll come back and take another look with no additional trip charge.
And when you proceed with your technician’s professional repair recommendation, that qualifying repair may be backed by our Lifetime Repair Guarantee for added peace of mind.
Why homeowners choose Donaldson
Honest advice, expert craftsmanship and a commitment to treating every home like our own, backed by 4.9 stars from 3,000+ Google reviews.
Local and family-owned
We’re not a franchise. Donaldson has been owned and run by Jamie and Anna Donaldson since 2013, and our reputation matters to us personally.
Honest recommendations
We explain every option in plain language and help you choose what’s right for your home and your budget, never simply what’s most expensive.
Upfront pricing
We give you the full price before any work begins, and what you’re quoted is what you pay. No hidden fees or unexpected invoice charges.
True Care protection
True Care brings parts and labour, diagnostics, annual maintenance and priority service together on qualifying new furnaces and air conditioners.
What your neighbours are saying about us
Which type of water heater is right for your home?
The right water heater depends on more than how much hot water your household uses. Your existing utilities, venting, available space, efficiency goals and budget can all influence which system makes the most sense.
Donaldson installs five types of water heaters and can help you compare them based on your home and how you use hot water.
Conventional water heaters
Traditional tank water heaters heat and store a supply of water so it’s ready when you need it. Natural-draft models can be a straightforward choice for homes with a compatible gas and venting setup.
Power vent water heaters
Power vent water heaters also store hot water in a tank but use a powered fan to move exhaust gases outside. This allows for more flexibility in how the system is vented compared with a conventional natural-draft model.
Tankless water heaters
Tankless water heaters heat water on demand rather than keeping a tank of water continuously heated. They take up less space and can be an efficient option, but proper sizing is important to make sure the system can keep up with your household’s hot water needs. Tankless tends to suit homes where space is limited or the household uses a lot of hot water. Keep in mind that a tankless unit won’t shorten the wait for hot water at a tap that’s far from the heater.
Electric water heaters
Electric water heaters use electric heating elements rather than a gas burner. They can be a practical option depending on your home’s existing utilities, available space and hot water requirements.
Heat pump and hybrid water heaters
Heat pump water heaters use heat from the surrounding air to help warm the water in the tank, with electric heating available when needed. They can offer an efficient electric option when the installation location and conditions are suitable.
Buy or rent your water heater
Buying a water heater usually costs less over its lifetime, while renting trades ownership for a predictable monthly payment. We’ll compare the upfront and long-term costs with you so you can choose what suits your home. Ask us whether a rental option applies to your project.
Not sure which option is right for you? We’ll assess your existing system, household hot water needs and installation requirements and recommend water heaters that make sense for your home and budget.
Membership Plans for every home
Choose how many pieces of equipment you want Donaldson to maintain year-round with our simple 10, 20 & 30 plans. A little care now means fewer surprises later.
Best value
Whole-Home Care
Furnace, AC, water heater, humidifier, HRV & fireplaces
$30
/Month
Furnace + AC Care
Both units covered, 2 maintenance visits per year
$20
/Month
Furnace or AC Care
Coverage & 1 maintenance visit per year for one unit
$10
/Month
Waived Diagnostic Fee
15% repair discount
Priority booking
Serving London, Ontario and surrounding areas
Locally based, with technicians across Southwestern Ontario. Don’t see your town? Give us a shout. Chances are we’re nearby.
Schedule a 2-hour arrival window for any home heating, air conditioning, or plumbing service. You’ll receive a text when we’re on the way, plus a photo of your technician so you know exactly who’s coming. Book now and experience service you can trust.
Water heater FAQs
Have more questions? We’ve got the answers.
Little or no hot water, inconsistent temperatures, hot water running out faster than usual, unusual noises, leaks or recurring problems can all mean your water heater needs attention. Donaldson can diagnose the problem and tell you whether repair or replacement makes more sense, with upfront pricing before any work begins. Book water heater repair.
It depends on the age and condition of the water heater, what’s causing the problem, the cost of repair and how reliably it meets your household’s needs. A newer system with a straightforward issue may be worth repairing, while replacement can make more sense for an older unit with recurring or significant problems. In some cases, home insurance may not cover damage caused by an older water heater, so it’s worth asking your insurer. Book an assessment.
Water heater lifespan varies with the type of equipment, installation, usage, water conditions and maintenance. Many traditional tank water heaters last around 10 years, but age alone doesn’t decide when replacement is necessary; condition, performance and repair history matter too. Regular maintenance helps, and our Whole-Home Care plan covers water heaters: compare our Membership Plans.
If you notice water around your water heater, call us promptly. The leak may be coming from a valve, connection or another component, but a leaking tank may need replacing. If a lot of water is escaping, avoid electrical components and limit further damage only if it’s safe. We offer 24/7 emergency service. Call us now and we’ll work to get a technician to your home the same day, subject to availability. See also emergency plumbing.
A traditional water heater heats and stores a supply of hot water in a tank, while a tankless system heats water as it’s needed. Tankless systems take up less space and don’t keep a tank of water hot all day, but they must be sized to keep up with your household’s demand, and the right choice depends on your utilities and installation. Read our tank vs. tankless guide.
In many homes, yes, but switching to tankless isn’t always a direct swap. Changes to gas supply, venting, electrical service or plumbing may be needed, depending on the home and equipment. Donaldson can assess your setup, size a tankless unit to your household’s hot water use and explain what’s involved, with upfront pricing before any work begins. Book a tankless assessment.
Water heater costs vary depending on whether you need a repair or replacement, the type and size of system selected and the work required for installation. Donaldson will assess what’s needed and provide upfront pricing before any work begins. You can also ask us whether a rental option applies to your project. Financing is available on approved credit: see our financing options.
Helpful resources
Everything you need to make confident decisions about your home.
Need some assistance?
Let’s get started
Reliable home service from a trusted local team: honest advice, upfront pricing, and True Care coverage that keeps us in your corner long after the job is done.
Call (519) 439-4328 or schedule your service online.
