“Reliable, affordable, and trustworthy. I won't call anyone else for HVAC.”
AN
Aisha N.Newmarket, ON
Services
Boiler Service Markham, ON
Markham Heating & Cooling: Boiler repair, installation, and maintenance for Markham and York Region homes. We service condensing and natural-draft boilers, fix no-heat calls, leaks, and pressure faults, and install high-efficiency replacements sized to your home.
Why Homeowners Call Us
Boiler not heating, leaking, or losing pressure?
From a cast-iron gas boiler in an older Markham home to a condensing unit in a new build, we repair no-heat, leak, and pressure faults fast, with upfront pricing and the same crew each visit.
Fast No-Heat and Leak Repairs
Cold radiators, a leaking relief valve, or a boiler losing pressure are common as systems age. We find the real fault, igniter, circulator, or expansion tank, and repair it without pushing an unnecessary replacement.
High-Efficiency Boiler Installation
When an old boiler is past saving, we install right-sized high-efficiency condensing gas boilers matched to your radiators or in-floor loops, sized so the whole Markham home heats evenly and efficiently.
Annual Maintenance and System Flush
A yearly service and hydronic flush keep your boiler efficient and catch corrosion before it fails. We service gas boilers across Markham and the surrounding area so your system is ready for winter.
Reviews
What Markham Homeowners Say
Real feedback from neighbours we've helped stay comfortable year-round.
“Excellent response time and very knowledgeable technicians. Our home was comfortable again by morning.”
MZ
Mark Z.Aurora, ON
“Professional service, fair pricing, and no surprises. They made the whole process simple and stress-free.”
KH
Kevin H.Vaughan, ON
We Can Help Solve Your Boiler Service Needs
Don't let a comfort problem disrupt your home. Get fast, reliable service from a licensed, insured Markham HVAC team.