DeMarco Mechanical offers residential and commercial HVAC installation, repair, replacement, maintenance services, and more across the GTA and York Region: Downtown Toronto, North York, Etobicoke, Scarborough, Thornhill, Markham, Richmond Hill, Vaughan, Concord, Aurora, Woodbridge, Maple, King City, Newmarket, Stouffville, Pickering, Ajax, Whitby, Oshawa, and the surrounding areas.
Reviews ( 226 )
Fast, professional, and clean – Adrian installed a gas oven and new AC with no damage to our home. Honest pricing and stress‑free experience.
This was our second experience with DeMarco. They not only fixed a botched HVAC job from another contractor, but also proposed energy-efficient improvements that reduced our monthly bills. No high-pressure sales—just fair advice and excellent work. We’ll be using them for all future HVAC needs.
When a section of our gas line needed urgent repair, Adrian came out within 48 hours with a competitive quote. He worked diligently and tested every part. The job was completed on schedule, with no surprises. Super professional, friendly, and highly recommended."
Our A/C decided to act up unexpectedly. Most companies quoted weeks out and expensive parts. Adrian came the same day, fixed it quickly, and charged a very reasonable price. He cleaned up afterward and made sure we understood everything. Great service!!
Our water heater failed and flooded the basement. Adrian recommended a tankless heater, installed it neatly, and did the job impeccably. His pricing was fair, and his workmanship was clearly top quality. Couldn’t be happier with the outcome
Adrian engineered and installed a multi‑head ductless heat pump system in our home—completely concealing the mechanical work and delivering flawless performance. He also took care of our aging boiler, recommending an upgrade and handling everything professionally. Highly skilled and reliable.
I couldn't have been more pleased with every aspect of Demarco Mechanical Services' excellent furnace repair. They arrived within the scheduled window, were very well-mannered, and quick and efficient in their diagnosis and skillful solution to the problem.
DeMarco Mechanical Services crew were able to do the installation of our A/C the next day after our call. They were prompt, professional, and courteous. They also provided me with important information about other products that should be considered for upgrade or replacement.
I had a new air conditioning system installed by DeMarco Mechanical Services, and the experience was seamless. The technicians were knowledgeable, courteous, and ensured the installation was done correctly. They even took the time to explain the system's features and maintenance tips.
I recently replaced my Air conditioning unit with DeMarco services. Adrian was very professional and did an amazing job. The service was great...he is easy to deal with and very accommodating. I highly recommend them.
DeMarco Mechanical Services consistently delivers top-notch HVAC solutions. Their team is always on time, professional, and efficient. Whether it's routine maintenance or emergency repairs, they handle every job with expertise. I trust them for all my heating and cooling needs."
DeMarco Mechanical Services was knowledgeable, efficient, and very professional. They performed quality work while explaining everything to us, so we could understand the issues and repairs. We will definitely hire them again and highly recommend them to anyone with HVAC issues.
My teenage son hit the garage door with his bike, knocking it off the track. Their roller and track repair service had it back to normal within 2 hours.
I’ve dealt with many contractors, but Adrian stands out. He’s knowledgeable, transparent, and takes pride in his work. DeMarco Mechanical is now our go-to.
Adrian did a full HVAC installation for us, and it was flawless. He was organized, neat, and made sure we understood how everything worked. Highly recommended!
Adrian was fantastic! He arrived on time, explained the problem clearly, and had our AC running in no time. Friendly, honest, and professional—couldn’t ask for better service.
Adrian replaced our old AC unit, and it’s working perfectly now. He answered all our questions and made sure we were comfortable before he left. Great service!
We love working with Adrian at DeMarco Mechanical. He’s trustworthy, punctual, and always leaves the space clean. Quality work every single timem
We booked DeMarco Mechanical for a spring HVAC tune-up and were really impressed. Adrian was polite, knowledgeable, and very thorough. The whole experience was smooth and stress-free.
Nguyen Phuong Hai Quynh
James Ralston
D Smith
Mark Willdosen
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Michael L Breen
Margarita Jose
Adrian came out promptly to fix a dangerous gas leak and had our cooking and hot water back in hours. He communicated clearly the issues and resolved everything with skill and care. Friendly, fast, and seriously professional service.