Boiler Repair
Diagnosis and part replacement for older boilers.
Explore RepairBOILER REPAIR · REPLACEMENT · 24/7
Boiler repair Hamilton homeowners call for older, out-of-warranty boilers — from century homes in the Lower City to newer builds on the Mountain.
WHAT WE DO
One local team for every boiler job — a 15-year-old combi that stopped heating or a brand-new installation.
Diagnosis and part replacement for older boilers.
Explore RepairAn honest repair-or-replace answer.
Repair or Replace?New combi and heat-only boilers, sized for your home.
Explore InstallationYearly tune-ups that catch problems early.
Explore MaintenanceNo heat at night or on a holiday? A person answers.
Boiler under 5 years old or still under the manufacturer's warranty? Their authorized service is your first call. Rental boiler? Your rental company handles repairs.
SIGNS SOMETHING'S WRONG
Most boiler repairs Hamilton homeowners call us for start with one of these signs — usually on boilers 10 years or older.
Usually caused by: A failed circulator pump, ignition fault or issue with the boiler controls.
What we do: Test the heating components, identify the failed part and explain the repair before work begins.
Usually caused by: A sticking diverter valve, faulty flow sensor or a problem with hot-water control.
What we do: Check the combi's changeover operation and replace the defective component when practical.
Usually caused by: A leak, expansion tank problem or pressure relief valve that is not sealing properly.
What we do: Test the boiler's pressure-related components and locate the cause of repeated pressure loss.
Usually caused by: A leaking connection, relief valve, condensate line or internal seal.
What we do: Trace the water to its source and assess which boiler component or connection needs attention.
Usually caused by: Restricted water flow, mineral deposits or a circulation issue inside the boiler.
What we do: Check circulation and heat transfer to identify the reason for the unusual noise.
Usually caused by: Worn ignition electrodes, flame detection faults or a problem with combustion air supply.
What we do: Test the ignition and safety sequence to determine why the boiler shuts itself down.
Usually caused by: A sensor, pressure, ignition or control fault identified by the boiler's diagnostics.
What we do: Read the fault history and test the affected system rather than replacing parts based on the code alone.
Usually caused by: A control setting, temperature sensor fault or poor circulation that leads to short cycling.
What we do: Check the boiler's operating cycle, controls and circulation to find why it restarts repeatedly.
Smell gas or hear a CO alarm? Leave the house and call 911 first.
Searching for boiler repair near me? Call (111) 111-1111 or book online.
Book Boiler Repair →
BOILER REPAIR
We repair older wall-mounted boilers that are past the manufacturer's warranty — 10, 15, even 20 years old. Most repairs are done on the first visit.
Parts for older and discontinued models sourced when available.
We test the boiler and identify the fault rather than guessing.
We explain the necessary work and the price. You approve before repairs begin.
Common replacement parts are carried in the van, subject to model and availability.
We work on homeowner-owned boilers past the manufacturer's warranty. Newer boiler? Call the manufacturer's authorized service. Rental? Call your rental company. Radiators and floor loops aren't part of our service — the boiler is.
REPAIR OR REPLACE
An old boiler doesn't always need replacing. Here's how we help you decide.
Before
After
Under 5 years old? Contact the manufacturer's authorized service first.
Comparing boiler replacement near me? We'll tell you honestly if a repair will do.
Get an Honest Opinion →NEW BOILERS
Looking for boiler installation near me? We size, install and set up new boilers for Hamilton houses — with radiators, in-floor heating or both.
Book a Home Visit →
Your new boiler comes with the manufacturer's warranty — we register it for you.
BOILER TYPES
Three common residential boiler configurations found in Hamilton homes. Choose a type to learn how it works and where it fits.
Around 95% efficient, vented through the wall with PVC pipe.
All three work with radiators or in-floor heating. We work on the boiler itself, not the radiators or floor loops.
BRANDS
Most residential boiler brands found in Hamilton homes — including older and discontinued models. We inspect faults, carry out maintenance and check replacement part availability.
We service most residential boilers, including many older and discontinued models. If your brand is not shown, call us and we'll check your model and parts availability.
Brand names and logos belong to their owners. We are an independent boiler service company.
(111) 111-1111MAINTENANCE & CLEANING
Searching for boiler maintenance near me? One visit a year — ideally September or October — keeps an older boiler safe and ready for winter.
Years of deposits make an older boiler work harder for the same heat. If you've been looking for boiler cleaning near me, a yearly visit takes care of it.
24/7 EMERGENCY BOILER REPAIR
No heat on a January night? If you need emergency boiler repair near me right now, call — a person answers 24/7, holidays included.
Smell gas or hear a carbon monoxide alarm? Leave the house immediately and call 911 from outside. Do not attempt to restart the boiler.
If there is no gas smell or carbon monoxide warning, check the thermostat, the boiler's power switch and the pressure gauge. Do not remove the boiler's service cover.
Note the error code on the display and the boiler model. Tell us when the heat stopped and whether the boiler has been locking out repeatedly.
Lost heat in your Hamilton home? Call our boiler service line anytime.
(111) 111-1111 Call NowEmergency calls answered overnight, on weekends and holidays.
WHY US
Hamilton boiler repair from technicians who work on older boilers every day.
Familiar with ageing wall-mounted boilers and discontinued models.
We explain the repair and price before you approve the work.
Gas boiler servicing handled by qualified technicians.
Frequently used components are carried for eligible repairs.
We protect the work area and tidy up after the visit.
Clear findings and practical options without confusing jargon.
REVIEWS
Customer feedback about Hamilton boiler repair, maintenance, installation and emergency service visits.
Our older boiler started making a loud rattling sound and then stopped heating properly. The technician checked the circulator pump, showed us the worn part and explained the price before replacing it. Everything was tested before he left.
Daniel McKenzie
Kirkendall · September 18, 2026
We lost heat late on a Saturday when it was freezing outside. Our call was answered right away, and the technician came out to investigate the ignition fault. He explained what had failed and got the heating running again that night.
Stephanie Collins
Stoney Creek · February 7, 2026
Scheduled maintenance for our nine-year-old boiler before the colder weather. The technician cleaned the burner, checked combustion and inspected the venting. I appreciated the written summary and the time he took to explain the readings.
Andrew Pelletier
Ancaster · August 26, 2026
We replaced our old setup with a wall-mounted combi boiler during a basement renovation. They explained the hot-water capacity, reviewed the pipe layout with us and showed us how to use the controls once installation was complete. Very tidy work.
Rebecca Lawson
Dundas · July 14, 2026
The heating was fine but we had almost no hot water from our combi boiler. I expected a major problem. It turned out to be the diverter valve. The technician explained the diagnosis clearly and repaired it without suggesting a whole new unit.
Jason Bradley
Westdale · April 22, 2026
Our 18-year-old boiler had needed several repairs, and replacement parts were getting difficult to find. We were given a clear comparison between another repair and installing a new unit. We chose replacement and appreciated the straightforward advice.
Nicole Marshall
Hamilton Mountain · June 3, 2026
We bought an older house and didn't know when the boiler had last been serviced. The technician checked its condition, cleaned the heat exchanger and found that the condensate trap needed attention. The whole visit was well organised.
Thomas Henderson
Crown Point · May 11, 2026
Our boiler kept shutting down with an error code on a Sunday morning. The technician arrived prepared, checked the flame sensor and ignition system, then tested several heating cycles after the repair. It was reassuring to have the issue properly investigated.
Christine Foster
Waterdown · January 25, 2026
FAQ
Straight answers about repairs, replacements, installation and service for residential boilers in Hamilton.
BOOK A VISIT
Send a request and we'll call you back to arrange a time. For no heat or a leak, call instead — we answer 24/7.
Residential Boiler Specialists
Repair · Replacement · Maintenance
Leave your contact details and we'll reach out about the issue and available appointments. The price is explained before any work begins.
Thank You!
Your message has been sent successfully. We'll get back to you shortly.
Thank You!
Your boiler service request has been sent successfully. Our Hamilton team will contact you about the details and available appointment times.
Need urgent boiler assistance? (111) 111-1111
SERVICE AREAS
From century homes below the escarpment to newer builds on the Mountain and in the suburbs.
Downtown, Durand, Kirkendall, Strathcona, Corktown, Westdale, Crown Point, Gibson, Stinson.
West Mountain, Central Mountain, East Mountain.
Stoney Creek, Upper Stoney Creek, Fruitland, Winona.
Ancaster Village, Meadowlands.
Dundas, Greensville.
Waterdown.
Binbrook, Mount Hope.
Not sure if we cover your street? Call (111) 111-1111 to confirm.
(111) 111-1111
