Markham homeowners
Fix uneven temperatures, weak airflow, noisy equipment, or an aging furnace and AC before it fails on the worst day of the year.
Explore residential HVAC services
Furnace + AC combo bonus: free smart thermostat and humidifier with qualifying installs.
HVAC Contractor Serving Markham, Ontario
Furnace, AC, and ductwork help for Markham homes hitting replacement age.
Navraj Air Systems installs, replaces, and repairs heating, cooling, and ventilation across Markham — Unionville, Wismer, Berczy Village, Cornell, Markham Village, Milliken, and the Highway 7 corridor. Straight answers on repair vs replace, then clean work.
- Free, no-obligation quotes with the full scope explained before we start.
- Honest repair-or-replace guidance on equipment in the 15-year window.
- 24/7 emergency furnace and AC repair support across Markham.
22Years of experience
1,167Projects completed
24/7Emergency support
HVAC services in Markham at a glance
Navraj Air Systems is an HVAC contractor serving Markham and York Region. We handle furnace installation and repair, air conditioning, heat pumps, ductwork, tankless water heaters, smart thermostats, gas lines, commercial HVAC, and new construction HVAC for homeowners, builders, and business owners.
- Serving
- Markham & York Region
- Works with
- Homeowners, builders, and commercial properties
- Phone
- 647-669-5009
- Emergency
- 24/7 furnace and AC repair support
- Quotes
- Free, with the scope explained first
22+ years of GTA HVAC experience
Certified, licensed, and insured techs
Free quotes, no obligation
Clean installs, respectful of your property
Heating, Cooling & Ventilation in Markham
HVAC services we provide in Markham.
One team for repairs, replacements, ductwork, gas lines, commercial systems, and new builds. Pick the service you need, or tell us the symptom and we will point you to the right fix.
Furnace Installation & Repair
Furnace replacement, installation, and repair for Markham homes.
Furnace service in Markham →Air Conditioning
AC installation, replacement, and repair to keep Markham homes cool.
AC service in Markham →Heat Pump Systems
Efficient heating and cooling in one system for Markham properties.
Heat pumps in Markham →Ductwork Installation & Repair
Better airflow, balanced rooms, and cleaner duct layouts in Markham.
Ductwork in Markham →Tankless Water Heaters
On-demand hot water sized for your Markham home.
Tankless water heaters in Markham →Smart Thermostats
NEST and ECOBEE setup for easier control and scheduling.
Smart thermostat setup →Gas Line Installation
Gas line work for HVAC equipment and appliances in Markham.
Gas lines in Markham →Old Home Retrofit
Modern comfort planned around older Markham layouts and access.
Retrofit HVAC in Markham →New Construction HVAC
Complete mechanical systems for Markham builders and custom homes.
New construction HVAC in Markham →Commercial HVAC
Heating, cooling, and ventilation for Markham offices, retail, and plazas.
Commercial HVAC in Markham →All HVAC Services
Every heating, cooling, and ventilation service we offer in Markham.
See all services →Not sure which one applies? See all HVAC services or call 647-669-5009 and describe what you are noticing.
Local Knowledge
A lot of Markham is due at the same time.
Large parts of Markham — Wismer, Berczy Village, Greensborough, Cathedraltown — were built through the late 1990s and 2000s. The original furnaces and air conditioners in those homes are now in the window where parts get harder to source and efficiency drops off. That is where an honest repair-or-replace conversation saves the most money.
Markham Village and Unionville hold older properties with duct layouts that were never planned for finished basements, additions, or the way families use the space now. Fixing airflow and returns there often changes comfort more than new equipment alone.
In Cornell and the newer townhome pockets, mechanical closets are tight and shared walls carry sound, so clean layout and quiet operation matter. Along Highway 7 and Warden, offices, retail, and plazas need commercial HVAC scheduled around business hours.
Unionville
Markham Village
Wismer
Berczy Village
Cornell
Greensborough
Cathedraltown
Angus Glen
Milliken Mills
Box Grove
Thornhill (Markham)
Highway 7 Corridor
What Markham customers usually call about
- ✓Original equipment now 15 to 20 years old
- ✓A hot second floor and a cold finished basement
- ✓Weak airflow in rooms farthest from the furnace
- ✓Humidity that feels off in spring and fall
- ✓Noisy equipment in a tight townhome mechanical closet
- ✓Commercial units that cannot afford downtime during business hours
Who We Help in Markham
Homes, builds, and business spaces.
Comfort problems look different in every property. We start with the space, airflow, access, and goals — then recommend the right system.
Builders and contractors
Coordinated ductwork, heating, cooling, ventilation, and gas systems planned around the drawings and the build schedule.
Explore new construction HVACMarkham businesses
Offices, retail, plazas, warehouses, and light industrial spaces that need dependable comfort without costly downtime.
Explore commercial HVACHow It Works
A clear 3-step process.
No guesswork, no pressure, and no surprise scope. You know what is happening before anyone touches equipment.
Tell us what you need
Share the issue, the project, and your Markham address through the quote form or by phone.
Get a clear recommendation
We review the space and explain the right repair, upgrade, or system — with the price before work starts.
Get the work done right
We complete the work cleanly, keep you informed, and leave the property the way we found it.
Customer Reviews
Trusted for clean work and reliable service.
Real feedback from homeowners, builders, and professionals across the Greater Toronto Area.
★★★★★
“Would highly recommend for any HVAC needs. This company has helped many of my real estate clients with house projects. Great service and clean work.”
★★★★★
“Highly recommend! Nothing but professional, efficient and friendly. Did an amazing job, got our basement done and couldn’t be happier with the work!”
★★★★★
“Navraj Air System provided excellent HVAC service — prompt, professional, and efficient. Highly recommend them for quality work at a fair price!”
Nearby Service Areas
HVAC service near Markham.
Navraj Air Systems serves Markham and communities across Toronto, York Region, Peel Region, and Halton Region.
Do not see your community? Call 647-669-5009 to confirm service availability.
Markham HVAC Questions & Answers
Answers before you book.
Quick answers about repairs, replacement, pricing, timing, and working with Navraj Air Systems in Markham.
Does Navraj Air Systems provide HVAC services in Markham?
Yes. Navraj Air Systems serves Markham and the surrounding York Region. We handle furnace installation and repair, air conditioning, heat pumps, ductwork, tankless water heaters, smart thermostats, gas lines, commercial HVAC, and new construction HVAC.
How fast can you help with an emergency furnace or AC repair in Markham?
We provide 24/7 emergency HVAC repair support. Call 647-669-5009 and we will confirm availability and the next step for your Markham address.
How much does a new furnace or air conditioner cost in Markham?
Cost depends on the size of the property, the efficiency level you choose, the condition of the existing ductwork, and access to the mechanical room. We quote after we understand the property, and the quote is free with no obligation.
Should I repair or replace my furnace or air conditioner?
Most systems last about 10 to 15 years. If your equipment is in that range, the repair is a major one, or your bills keep climbing, replacement is usually the better long-term value. We show you both paths and what each one actually solves.
Can you fix uneven temperatures and weak airflow in a Markham home?
Yes. Uneven temperatures usually trace back to equipment sizing, duct layout, return air, balancing, or controls. We check those first so you are not paying for larger equipment that does not fix the real cause.
Do you install heat pumps in Markham?
Yes. A heat pump can handle both heating and cooling, and it can be paired with a furnace for the coldest stretches. We will tell you whether your home, ductwork, and electrical setup are a good fit before you commit.
Do you work with builders and commercial properties in Markham?
Yes. We handle new construction HVAC for custom homes and multi-unit projects, and commercial HVAC for offices, retail, plazas, warehouses, and light industrial spaces in Markham.
Are your HVAC technicians certified, licensed, and insured?
Yes. Navraj Air Systems works with certified, licensed, and insured technicians for residential and commercial HVAC work.
Do you serve Unionville, Cornell, Wismer, and Berczy Village?
Yes. We cover all of Markham, including Unionville, Cornell, Wismer, Berczy Village, Greensborough, Markham Village, and Milliken, for residential, commercial, and new construction HVAC work.
Start With a Clear Next Step
Get the right HVAC solution for your Markham property.
Tell us what you need. We will review your request and follow up with practical guidance for your home, construction project, or commercial space.
Free HVAC Quote
Get a fast, free HVAC quote.
One short form. Clear next steps. No pressure.
- Share a few details about your home, project, or commercial space.
- Our team reviews your request and follows up by phone or email.
- You get a clear estimate with no pressure and no hidden fees.
Want to call instead?
Talk to Navraj Air Systems now and tell us what is going on.
Call 647-669-500920+ Years
Hands-on HVAC work across the GTA.
1,100+ Projects
For homes, builders, and businesses.
Clear Quotes
Simple next steps with no pressure.
Customer Reviews
Trusted for clean work and reliable HVAC service.
Real feedback from homeowners, builders, and professionals who trusted Navraj Air Systems with their comfort and projects.
★★★★★
Results people recommend.
Customers mention professional service, fair pricing, clean work, fast help, and jobs completed as promised.
★★★★★
“Highly recommend! Nothing but professional, efficient and friendly. Did an amazing job, got our basement done and couldn’t be happier with the work!”
★★★★★
“They gave me a great friendly experience and did everything as promised over the phone!”
★★★★★
“Navraj Air Systems fixed my air maintenance in my bedroom within 2 hours. Now my room finally gets cold. Thanks to him.”
★★★★★
“Navraj Air System provided excellent HVAC service — prompt, professional, and efficient. Highly recommend them for quality work at a fair price!”
★★★★★
“The team does great work for all my builds. Always on time with competitive rates. The bonus is my city inspections always pass with no issues.”
★★★★★
“Would highly recommend for any HVAC needs. This company has helped many of my real estate clients with house projects. Great service and clean work.”
Need HVAC help you can trust?
Tell us about your home, build, or commercial property and get a clear next step.
