Boiler repair & installation in London, Ontario
Reliable heat, right when you need it
Donaldson Home Services repairs, maintains and installs boilers for homes in London and surrounding communities. From troubleshooting heating problems to replacing an aging system, our team will help keep your boiler operating safely and reliably, with upfront pricing before any work begins.
Do you need boiler service?
Boilers are built to provide dependable heat, but changes in performance can be a sign that your system needs attention. If you’ve noticed any of the following, it may be time to have your boiler professionally inspected.
Not sure whether you need a repair or replacement? We’ll inspect your system, explain what we find, and recommend the appropriate next step.
Reach out today!
"*" indicates required fields
Boiler service. Done with care.
Boiler systems require a different approach than forced-air heating. Our team takes the time to understand your existing system, diagnose the problem properly, and recommend a solution based on your home’s heating needs, not a one-size-fits-all answer.
Whether your boiler needs attention today or you’re considering a new system, we’ll help you make an informed decision about what’s right for your home. Boiler service is part of our heating services, alongside furnace repair, heat pumps and water heaters, for homes in London and surrounding communities.
What to expect
Whether your boiler needs a repair, routine maintenance, or it’s time to consider replacement, we’ll take the time to understand your system, explain what we find, and recommend the right next step for your home.
Step one
Schedule Service
Call, text, book online, or fill out the form and tell us what’s happening with your boiler. We’ll ask a few questions about your system and any issues you’re experiencing, then arrange a service visit at a time that works for you.
Step two
Inspect system
A licensed technician will assess your boiler and heating system, checking its condition, operation, and any symptoms you’ve noticed. If there’s a problem, we’ll diagnose what’s causing it rather than simply treating the symptom.
Step three
Explain options
Once we understand your system, we’ll explain what we found and walk you through the appropriate options. That could mean maintenance, a recommended repair, or discussing replacement if your existing boiler is no longer the best long-term choice.
Step four
Service/repair/ replace
With your approval, we’ll complete the recommended work and test the system to make sure it’s operating properly. If replacement is the right choice, we’ll help you select an appropriately sized system and complete the installation.
We install trusted boiler systems
We install high-efficiency boilers from Navien, Rinnai and NTI for homes with radiators, baseboard heaters or in-floor hydronic heating. From replacing an aging boiler to matching a new one to your existing system, we’ll help you choose properly sized equipment that fits your comfort needs, home and budget.
Boiler repairs backed by our 90-day guarantee
Donaldson stands behind our boiler repair 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 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
Get more from your boiler
Boiler systems can provide reliable, comfortable heat for years, but getting the most from yours starts with understanding how it works and when it may need attention. Whether you’re maintaining an existing system or considering replacement, a few key factors can help you make the right decision for your home.
How boiler heating works
Boilers heat water and circulate it through your home to provide consistent, comfortable warmth through radiators, baseboards, or in-floor hydronic heating. Because the system heats your home without relying on forced air, proper operation depends on both the boiler itself and the components that distribute heat throughout your home.
Repair or replace your boiler?
Not every boiler problem means you need a new system. Depending on the age and condition of your boiler, the cause of the problem, repair costs, and overall efficiency, a repair may be the most practical choice. If replacement makes more sense, Donaldson will explain why and help you compare your options.
Choosing the right boiler
Boilers aren’t one-size-fits-all. The right system depends on your home’s heating requirements, existing hydronic system, layout, and other factors. Donaldson will assess your home and current equipment before recommending a properly sized boiler designed to provide reliable, efficient heat.
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.
Boiler FAQs
Have more questions? We’ve got the answers.
Common signs include inconsistent heating, unusual banging or knocking noises, leaks around the system, frequent cycling, or a boiler that isn’t producing enough heat. If you notice a change in how your boiler is operating, Donaldson can inspect the system, identify the problem and recommend the right next step, with upfront pricing before any work begins. Book a boiler inspection.
It depends on the age and overall condition of your boiler, the cost and frequency of repairs, and how well the system is performing. A repair may be the most practical option for a system that is otherwise in good condition. If replacement makes more sense, we’ll explain your options and help you decide. Many homeowners also ask about heat pumps.
Once a year. Annual professional maintenance keeps your boiler running reliably and catches potential concerns before they become larger problems. Your technician can also advise you on maintenance requirements specific to your equipment. To have the visit booked for you every year, see our Membership Plans.
The right boiler depends on your home’s heating requirements, existing hydronic system, layout and current equipment. Donaldson will assess your home and recommend a properly sized system based on your heating needs, so it heats your home evenly without wasting energy. To start with an assessment of your current system, contact our team.
Yes. 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. If your boiler stops working and you’re left without heat, don’t wait. See all of our heating services.
We service all makes and models, including systems we didn’t install. Boiler repair, maintenance and replacement are all part of our heating services. If you’re unsure about your equipment, send us the boiler’s make and model and we’ll let you know what to expect. Contact our team.
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.
