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Comfort shouldn't mean juggling three different companies for design, installation, and repair on the same system. Northumberland HVAC brings 20 years of hands-on experience to every project, handling everything from custom design through installation and ongoing maintenance under one roof. When you need HVAC in Ajax, our team designs a system that fits your home's age, layout, and the town's building code requirements before a single duct is ever installed.
Get your Ajax home comfort project started
What HVAC Services Do We Offer Ajax Homeowners and Businesses?
Our services cover the full range a modern Ajax property might need, including furnace and air conditioning swaps and whole-home duct system design. As a licensed HVAC contractor in Ajax
homeowners and small builders already trust, we handle heat pumps, HRV units, water heaters, and gas lines alongside standard furnace and AC work. If you're planning a renovation or new build, our custom HVAC design services for local homes
page walks through exactly how we size and lay out a system, and every HVAC in Ajax
project we take on starts with that same design-first process.
Are You Licensed and Registered to Design and Install HVAC Systems in Ontario?
Every job we take on is backed by our HRAI licensing and BCIN registration, so the paperwork protects you as much as the workmanship does. We handle everything from a simple furnace and air conditioning in Ajax
replacement to full commercial rooftop unit installations, and we provide every document and drawing needed for your building permit along the way. Since Ajax's permit process runs mostly through an online portal, our HVAC in Ajax
customers appreciate that we manage that paperwork for them, and you can see our full HVAC installation process
for a closer look at how each project comes together.
Why Does Ajax's Mix of New Builds and Older Homes Need a Local HVAC Team?
Ajax's streets run from established bungalows near the lake to brand new homes in subdivisions like Audley North and Southwood, and no single system size fits all of them. We size systems just as carefully for a small business as we do for a house, and our experience with commercial HVAC in Ajax
storefronts and offices means rooftop units get the same attention to detail as a furnace replacement in an older bungalow. No matter if your HVAC in Ajax
system is a decade-old furnace calling for a fix or a brand-new heat pump still under warranty, our team treats every repair call with the same urgency, and our fast HVAC repair service
page details exactly what you can expect.
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Reach out to our Ajax HVAC team today
HVAC Ajax: Everything Included When You Book Our Team
One call gets you a crew that handles design, installation, and everything after, without passing you off to a subcontractor. Here's what's on the table when you bring us into your project.
HVAC Design: We run heat loss calculations and lay out a duct system sized specifically for your home's square footage and layout.
Furnace and Air Conditioning: Every unit we install carries a 10-year warranty on parts, so you're covered long after the install truck leaves.
HRV Systems: We install heat recovery ventilators that keep fresh air circulating without letting your heating and cooling bills climb.
Water Heater Installation: From tankless units to traditional tanks, we size and install water heaters that match your household's actual usage.
Commercial Rooftop Units: Our team handles rooftop unit installations for storefronts and offices with the same precision we bring to residential jobs.
HVAC Design: We run heat loss calculations and lay out a duct system sized specifically for your home's square footage and layout.
Furnace and Air Conditioning: Every unit we install carries a 10-year warranty on parts, so you're covered long after the install truck leaves.
HRV Systems: We install heat recovery ventilators that keep fresh air circulating without letting your heating and cooling bills climb.
Water Heater Installation: From tankless units to traditional tanks, we size and install water heaters that match your household's actual usage.
Commercial Rooftop Units: Our team handles rooftop unit installations for storefronts and offices with the same precision we bring to residential jobs.
Ready to Make Your Ajax Home More Comfortable?
We treat every project like it's going in our own home, whether that's a full duct redesign or a simple water heater swap. Twenty years in this business taught us that HVAC in Ajax
homes needs to hold up through humid summers and long winters alike, and our 10-year warranty backs that up. For a closer look at how we handle everything from heat pumps to gas lines once the install is done, check out our ongoing maintenance and repair services
.
Book your free Ajax HVAC consultation
