Boiler RepairService & Repair
Expert boiler repair for radiator and hydronic heating systems. Emergency service available.
Boilers require specialized knowledge that many HVAC contractors lack. Air Source Home Comfort technicians have deep expertise in all types of boilers—from classic cast iron to modern condensing units. We diagnose and repair boiler issues that others can't solve.
Need Emergency Boiler Repair?
24/7 same-day emergency service
Professional Boiler Repair Services
Boiler heating systems are different from forced-air furnaces, and they require specialized expertise to diagnose and repair properly. Many HVAC contractors focus primarily on forced-air systems and lack genuine boiler experience. Air Source Home Comfort is different. Our technicians are trained on all types of boilers—from the cast iron radiator systems common in older Barrie and Orillia homes to modern high-efficiency condensing boilers. We understand hydronic heating, pressure systems, zone valves, circulator pumps, and all the components that make boiler systems work. When your boiler fails or underperforms, we have the knowledge to fix it.
Many heritage homes throughout our service area—downtown Barrie, Orillia, Collingwood, and older Muskoka properties—were built with boiler heating systems. These beautiful homes deserve contractors who understand and appreciate their heating systems. We've been repairing boilers throughout Central Ontario for years, maintaining the comfortable radiant heat that homeowners love while solving problems that less experienced contractors might miss or misdiagnose.
Common Boiler Repair Issues We Fix
- No heat from radiators or baseboards
- Boiler not firing or igniting
- Low water pressure in the system
- Water leaking from boiler or pipes
- Strange noises (kettling, banging, gurgling)
- Radiators not heating evenly or at all
- Pilot light problems or repeated outages
- Circulator pump failure
- Zone valve not opening or closing
- Pressure relief valve discharging
Signs You May Need Replacement
- Boiler is over 20-25 years old
- Increasing energy bills despite similar usage
- Repairs becoming more frequent and costly
- Visible rust, corrosion, or deterioration
- Inconsistent heating throughout the home
- Strange smells when system operates
- Difficulty finding replacement parts
- Comfort declining compared to previous years
Book Your Repair Today
Our technicians are ready to diagnose and repair your boiler repair issue quickly and professionally.
Flexible payments available through Klarna—pay in 4 interest-free installments.
Schedule RepairOr call 705.606.4328
Why Choose Air Source for Boiler Repair?
Boiler problems require a contractor with real hydronic heating expertise. Air Source Home Comfort delivers:
Our Boiler Repair Process
From first call to completed repair, here's what to expect:
Contact Us
Call or book online. Describe your symptoms—type of boiler, radiators vs. in-floor, what's happening—so we can prepare appropriately.
Expert Evaluation
Our boiler technician arrives and thoroughly inspects your system—boiler, expansion tank, circulator, zones, and distribution.
Accurate Diagnosis
We identify the exact problem, whether it's in the boiler itself, the piping, the controls, or the distribution system.
Clear Options
We explain what we found and provide repair options with pricing. For older systems, we honestly discuss repair vs. replacement considerations.
Professional Repair
Once approved, we complete the repair professionally. We test the entire system to ensure proper operation throughout your home.
"We have an old cast iron boiler in our downtown Barrie home that most companies don't want to touch. Air Source understood the system, diagnosed a failing circulator pump, and had it working again the same day. They actually appreciate older heating systems!"— Catherine & Robert W., Downtown Barrie
Boiler Repair Questions Answered
Common questions about boiler repair from homeowners throughout Central Ontario.
Why is my boiler losing pressure?
Pressure loss indicates a leak somewhere in the system—either in the boiler itself or in the piping, radiators, or fittings. Small leaks can be hard to find. We systematically inspect to locate and repair the leak.
What is kettling and is it serious?
Kettling is a rumbling or banging sound caused by limescale buildup or sludge restricting water flow in the heat exchanger. It reduces efficiency and can eventually damage the boiler. It should be addressed before it causes expensive failures.
How long do boilers last?
A well-maintained boiler can last 20-30 years. Cast iron boilers often last even longer. However, efficiency declines with age, and parts for very old units can be difficult to source. We provide honest advice on repair vs. replacement.
One of my radiators isn't heating. Why?
Single-radiator problems often indicate air trapped in that radiator (needs bleeding), a failed zone valve, blocked circulation, or a closed valve. We can diagnose and fix the specific issue.
Do you service steam boilers?
Yes, we service both hot water (hydronic) and steam boiler systems. Steam systems are less common today but still found in some older homes. Our technicians understand both technologies.
Can you get parts for my old boiler?
In most cases, yes. We have sources for parts for older boiler systems. However, for very old units, some parts may be unavailable or prohibitively expensive. We'll be honest about what's possible.
Boiler Repair Maintenance Tips
- Schedule annual professional maintenance before heating season
- Bleed radiators if they feel cool at the top but warm at the bottom
- Monitor boiler pressure gauge and add water if needed
- Listen for unusual sounds and address promptly
- Keep the area around your boiler clear and accessible
- Test zone valves periodically to ensure proper operation
Boiler Repair Service Areas
Professional boiler repair services throughout Central Ontario
Boiler Repair Problems? We Can Help.
Don't wait—get your system repaired by certified technicians. 24/7 emergency service available throughout Central Ontario.