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Heating, Cooling and Heat Pump Service in Markham

From heritage homes in Unionville and Old Markham Village to newer streets in Cornell, Berczy Village and Cathedraltown, Markham has a wide range of HVAC setups. We work on furnaces, ACs, heat pumps, ductless systems, combi boilers and water heaters.

  • TSSA licensed & insured
  • 20+ years in the GTA
  • 24/7 emergency service
  • 1-year labour warranty
  • Registered Home Renovation Savings contractor

No heat, no cooling, or planning a replacement?

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What do you need in Markham?

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Furnace repair and replacement in Markham

Heat not working or a furnace that is 15+ years old? We diagnose, repair and install high-efficiency furnaces.

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Central air and AC repair in Markham

Installation, repair and seasonal tune-ups so every room stays cool.

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Heat pumps, including ductless in Markham

One system for heating and cooling, sized for your home. Ask us about rebates.

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Tank and tankless water heaters in Markham

Repair and replacement, including converting a rental to an owned unit.

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Boilers and combi boilers in Markham

Installation, servicing and repair for hydronic heating.

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Gas piping in Markham

Gas lines for BBQs, ranges, dryers and fireplaces, installed to code.

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Common Markham setups

  • Townhouses with combi or air handler systems. Many newer townhomes heat with hot water from a combi boiler or water heater feeding an air handler. When heat and hot water both get weak, the heating appliance is usually the place to start.
  • Larger detached homes with high hot water demand and several bathrooms. Tankless water heaters and recirculation pumps are common, and they need regular descaling.
  • Heritage and older homes in Unionville and Old Markham with limited space for ductwork. Ductless heat pumps are often the cleanest way to add cooling or improve comfort in specific rooms.

Ductless heat pumps

Ductless mini-splits work well for additions, basements, home offices and older houses without ducts. Cold-climate models heat well into the winter, and many homeowners use them alongside their existing furnace or boiler. Our post on ductless mini-splits in Markham explains where they make sense.

Tip: rinse the filters in a ductless indoor unit every month or two when it’s running a lot. Dirty filters are the main reason they lose airflow or start to smell musty.
Wall-mounted ductless mini-split heat pump
A ductless mini-split we installed.

Rebates

We’re a registered contractor with Home Renovation Savings, so qualifying heat pump and high-efficiency upgrades can come with rebates. Programs and amounts change during the year, so we check what applies to your home when we quote. Estimates for new installations are free, and financing is available.

Areas we cover in Markham

  • Unionville
  • Old Markham Village
  • Cornell
  • Berczy Village
  • Cathedraltown
  • Angus Glen
  • Wismer
  • Greensborough
  • Box Grove
  • Milliken Mills
  • Markham side of Thornhill
  • Buttonville

What our customers say

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Ivan Travel profile picture
Ivan Travel
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Ehsan do everything precisely as planed!!! The only thing he is not so good is with shovel 😂 I recommend his company!!!
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Ginkgo Ocean
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I had a very positive experience with Ehsan from Aurora Star Tech. I hired him to perform maintenance and safety inspections on multiple gas furnaces and gas fireplaces, including some older and less common equipment. Ehsan was thorough and spent considerable time on each unit rather than rushing through the job. He cleaned and tested the equipment, took operating measurements, and communicated with me frequently throughout the service. I especially appreciated that he explained what he was checking, shared his findings and readings with me, and showed me how some of the older fireplaces operate. At the end of the visit, he completed an individual written maintenance and inspection report for each units, including key measurements and findings. I really value this kind of documentation for future maintenance. Overall, I found Ehsan knowledgeable, patient, communicative and conscientious. He took the time to do the work properly and to help me understand the condition of the equipment. I would be happy to use Aurora Star Tech again and highly recommend Ehsan and his company.
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Jordan Michael profile picture
Jordan Michael
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Was quick. Responsive and professional. Was really honest as well when task was easier then originally thought
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Ryan G profile picture
Ryan G
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Ehsan was efficient and professional with our AC repair. Thank you!
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Brian Tang profile picture
Brian Tang
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Ehsan was incredibly helpful in resolving our furnace issue. We thought we had a gas leak, but Ehsan investigated and determined that there fortunately no gas leak in our case. Instead, we had a thermostat signal issue which he resolved. Ehsan was very responsive and accommodating, and we will be using his services moving forward!
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Sena Pathiraja
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Excellent customer service. Verdy caring, knowledgeable,.honest and efficient. Eshan and his team installed our A/C unit within 3 hours upon very short notice. Highly recommended and will not hesitate to hire him any time again. Thank you Eshan and his team.
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Fred Norbaran
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Aviv Aynes profile picture
Aviv Aynes
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Eshan and his partner did a great job installing my AC unit. The installation was clean, efficient, and completed on time. Price stayed exactly as quoted with no hidden fees or surprise charges. I’m happy with the service and would definitely recommend Eshan to anyone looking for reliable HVAC work!
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Mike Lee profile picture
Mike Lee
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I had a leaky gas pipe behind my gas stove, and Ehsan took care of the repairs very promptly and professionally. He was friendly, knowledgeable, and patiently answered all the questions I had about the repair. Service quote was also very reasonably priced, and I was extremely satisfied with the service I was provided. I would 100% recommend him to anyone looking for a professional technician, and would definitely contact Ehsan again myself for any repairs in the future.
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Ron Lepofsky profile picture
Ron Lepofsky
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Essan was very helpful and professional. I appreciate Aurora Star Tech Inc excellent service. I am confident, my furnace will continue to work well now!!
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Questions we get in Markham

Can a ductless heat pump heat my home in winter?

Cold-climate models keep heating well below freezing, but output drops in deep cold. Many homes use them with a furnace or boiler as backup.

My townhouse heat and hot water are both weak. What is wrong?

In a combi or air handler setup, both come from the same appliance. Scale, a failing pump or a control issue on that appliance is the usual cause.

Do you service Rinnai and Navien units?

Yes. We are Rinnai Pro certified and service most tankless and combi brands.

Ready to book in Markham?

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📍 Nearby Service Areas

Aurora Star Tech also serves these communities near Markham:

Emergency HVAC Service

647-657-2977