HVAC Services in Markham
24/7 furnace repair, AC installation & HVAC services for Unionville, Cornell, Milliken, Angus Glen & all of Markham. Same-day service, no overtime charges.
Markham's Reliable HVAC Contractor
EcoFrost serves the entire City of Markham, from the charming heritage streets of Unionville to the modern master-planned communities of Cornell and Cathedraltown. Markham's diversity means we work with all types of homes: older bungalows built in the 1970s, large executive homes in Angus Glen, and brand-new builds throughout Wismer and Berczy Village.
From the mature trees and older homes of Old Markham Village to the sprawling new subdivisions of Cornell and Box Grove, our technicians have worked on HVAC systems in every Markham community. We understand York Region's building codes, work closely with local suppliers for fast parts availability, and know how to get permits processed quickly through Markham's municipal system.
Why Markham Chooses EcoFrost
- Serving all Markham communities and subdivisions
- Experience with Markham's wide range of home ages
- Fast parts availability through local York Region suppliers
- Familiar with York Region Energy Efficiency Programs
- Bilingual service available (English/Cantonese/Mandarin)
Markham Cold Snaps
York Region winters can be harsh, with cold winds sweeping down from the Oak Ridges Moraine. When your furnace fails at -20°C, you need a local technician who can get to you fast. Our 24/7 team is always on call.
Hot, Humid Summers
Markham summers are hot and humid. With so many newer builds featuring tighter insulation, proper AC sizing is critical. We match every cooling system exactly to your home's needs.
Furnace or AC emergency in Markham? Our technicians cover all of York Region and can reach you quickly.
Call (416) 835-4775HVAC Services in Markham
We repair, install, and maintain every heating and cooling system in Markham: furnaces, AC, heat pumps, water heaters, and more.
Furnace Repair in Markham
Same-day furnace repair, installation, and tune-ups across Markham. Gas, electric, and oil furnaces.
AC Repair in Markham
Air conditioner repair, installation, and tune-ups to keep Markham homes cool through the summer.
Emergency HVAC Repairs
Fast, reliable repairs for all heating and cooling systems. Same-day emergency service available.
Maintenance Plans
Preventive maintenance to extend equipment life and prevent costly breakdowns.
Popular Markham services
Why Markham Homeowners Choose EcoFrost
Same-Day Service
We understand HVAC emergencies can't wait. That's why we offer same-day service for urgent repairs.
Workmanship Stand-Behind
If something installed by us is not right when we leave, we come back and fix it at no charge. Covered by our 10-year labour warranty on all installations.
Licensed & Insured
Our technicians are fully licensed, insured, and trained to handle any HVAC challenge.
Neighborhoods We Serve in Markham
Our team of experienced HVAC technicians provides fast, reliable service throughout Markham and surrounding communities. No matter where you're located, we're just a phone call away.
Call (416) 835-4775Areas We Cover
Typical Markham HVAC Costs
Markham prices reflect York Region labour and equipment costs. Every job is quoted flat before work begins, with no overtime charges on evenings or weekends. Here is what most Markham homeowners can expect.
Estimates before rebates. Free on-site quote available.
Markham Rebate Reminder
Markham homeowners can claim up to $7,500 on a cold-climate air-source heat pump through the Ontario Home Renovation Savings Program (HRS) in a non-gas home, or up to $2,000 in a natural-gas home. Income-qualified homes may get a no-cost heat pump through Save on Energy. We file all the paperwork.
See all available rebates →Not sure what you need?
Use our free sizing calculator to estimate the right furnace, AC, or heat pump capacity for your Markham home, then book a no-charge in-home assessment to confirm.
Try the HVAC sizing calculator →HVAC Service Across Markham Neighbourhoods
Markham spans heritage villages, established suburbs, and brand-new master-planned communities. Our TSSA-certified technicians know the housing stock and equipment in each, so we match the right service to your home.
Unionville
Markham's historic heart. Heritage homes along Main Street Unionville often have original ductwork and aging furnaces due for replacement, so we handle careful installs that respect older layouts.
Cornell
A master-planned east-Markham community of newer builds. Tight, well-insulated homes here are ideal candidates for a right-sized high-efficiency AC or a cold-climate heat pump.
Cathedraltown
One of Markham's newest neighbourhoods. New-build equipment here is prime for smart thermostats, heat pumps, and HRS rebate upgrades.
Angus Glen
Executive homes on larger lots in north Markham. Bigger homes need carefully staged furnaces and multi-zone cooling, which we size on site.
Milliken
Established southwest Markham near the Toronto border, with 1980s detached homes and townhomes where furnace and AC replacements are common.
Markham Village
The original village core with mature trees and older housing stock. Ductless mini-splits are a popular fit for homes without central ductwork.
HVAC Services Markham - FAQs
What HVAC services does EcoFrost offer in Markham?
We offer furnace repair, furnace installation, AC repair, AC installation, heat pump installation, heat pump repair, and tankless water heater services throughout Markham. All technicians are TSSA-certified.
Does EcoFrost serve all Markham communities including Unionville, Cornell, and Milliken?
Yes. We serve all of Markham: Unionville, Markham Village, Milliken, Cornell, Cathedraltown, Buttonville, Berczy Village, Angus Glen, Wismer, Box Grove, and Swan Lake.
How quickly can EcoFrost respond to a heating or cooling emergency in Markham?
We offer 24/7 emergency service with same-day dispatch to all Markham neighbourhoods. There are no overtime surcharges for evenings, weekends, or holidays.
Is EcoFrost certified to do gas work in Markham?
Yes. All EcoFrost technicians are TSSA-certified for natural gas work in Ontario. We are familiar with York Region and City of Markham permit requirements and handle permits for every installation.
Are there rebates for HVAC upgrades for Markham homeowners?
Yes. Qualifying heat pump installations can earn Markham homeowners up to $7,500 from the current Home Renovation Savings Program (HRS) for an air-source cold-climate heat pump (legacy Canada Greener Homes Grant $6,500 closed Jan 20 2026; legacy Enbridge HER+ $1,000 ended Dec 31 2025). Heat-pump water heaters qualify for a $500 HRS rebate; conventional tankless units have no active 2026 rebate. We file all paperwork.
Can EcoFrost install ductless mini-splits in older Markham homes?
Yes. Ductless mini-split systems work well for older homes in Unionville and Markham Village that lack central ductwork, as well as for home additions and secondary suites. We install Lennox, Mitsubishi, and Daikin ductless systems.
Does EcoFrost offer financing for Markham homeowners?
Yes. We offer 0% financing for 6 months on qualifying furnace, AC, and heat pump installations via Financeit (standard rate applies after the promo period). Ask about current promotions when booking your free in-home estimate.
What HVAC brands does EcoFrost install in Markham?
We are a Lennox authorized dealer and recommend Lennox systems for most Markham homes. We also install Carrier, Goodman, Daikin, Mitsubishi Hyper-Heat, Bosch IDS, Navien, and Rinnai equipment.
HVAC Services in Markham
Specialized service pages for every HVAC need in Markham.
Gas furnace · Emergency service · TSSA-certified · $0 overtime
Central AC · Ductless mini-split · All brands
- Heat Pump Installation Markham
- Heat Pump Repair Markham
- Water Heater Installation Markham
- Water Heater Repair Markham
Cold-climate · HRS rebate · Tankless & tank
Markham HVAC pricing and rebate guides
Pricing pillars and rebate guides for Markham homeowners.
Ready for Reliable HVAC Service in Markham?
Contact EcoFrost today for a free quote. Our friendly team is ready to help with all your heating and cooling needs.