This was our second time using DeMarco. They promptly corrected poor HVAC work left by another contractor and offered energy‑efficient upgrades tailored to our needs. Reliable, honest, and cost‑saving—exactly what we wanted!

DeMarco Mechanical first fixed a gas line leak in a few hours, and later installed a brand‑new air conditioner flawlessly. They protected our walls, kept the workspace tidy, communicated clearly and left no drywall damage. Excellent result, excellent team!

Our furnace died during a heatwave and DeMarco showed up next day, identified the issue fast, and restored everything without delay. Friendly service, knowledgeable techs, and transparent cost estimates. Highly recommend their services!

From gas line repair to AC installation, Adrian and the DeMarco Mechanical team provided top-tier service with unmatched professionalism. They arrived on time, explained every step clearly, and worked cleanly and efficiently. Pricing felt very fair, and the entire process was stress‑free. Would absolutely hire them again!

Adrian resolved the issue in a few hours… came on time, answered promptly… very pleasant, friendly and professional.” They delivered same‑day service at a reasonable rate.

They came out and did a really good job on installation. Not only does it run good, it looks really nice… cleaned up after themselves and showed me how to use the system and all the energy saving options.

Came in to correct previous HVAC issues left behind by another company… resolved the issue quickly, and suggested another smart and energy‑efficient solution to a complex problem that will save our family $$ every month.

Had a gas leak… called up DeMarco and they were able to service the next day. Adrian showed up on time, very professional… walked me through everything while solving the issue. Great service.

I was so impressed with Adrian professionalism, knowledge and the fact he took additional precautions to protect our property… the whole process stress free and seamless. Competitive pricing too—highly recommend for HVAC installs.

Engineered a custom HVAC plan for our house, provided a quality install, and left the space pristine. Couldn’t ask for more.

Adrian is always prompt, clean, and honest—trusted him with HVAC and gas work, and he exceeded expectations!!

I called DeMarco for quotes on a new furnace and AC. Adrian took time to engineer an efficient set-up tailored to our home. The install was clean, exactly on schedule, and we feel confident in the system’s performance. Worth every dollar.

Our tankless heater failed, flooding the basement. DeMarco was the only one who suggested a tankless replacement and delivered a beautiful, efficient installation at a reasonable rate. The finished job looked clean and professional—no regrets choosing them.

When our gas abruptly shut off, Adrian arrived same day, located multiple leaks, and had us cooking again in hours. He explained everything clearly, stayed calm under pressure, and restored service fast. Professional and courteous from start to finish.

We’d struggled for years with an old ductless AC system, and finally hired DeMarco for a full heat pump upgrade. Their installation team engineered the layout perfectly, hid all mechanicals cleanly, and left the house spotless. The system heats and cools flawlessly. Excellent workmanship!

For over a decade, DeMarco Mechanical has been our trusted HVAC provider. Whether it’s maintenance or a new install, their team is experienced, efficient, and always provides excellent service!!

Adrian spent real time helping us choose the right furnace and AC — no upsells, just clear, honest guidance. The installation was flawless, price fair, and the system has been running beautifully since. Best HVAC experience we’ve had in years.

I discovered a gas leak at home and phoned DeMarco Mechanical Services—they scheduled a visit the next day. Adrian arrived exactly on time, wore full PPE, and explained each step as he fixed the issue. He was calm, professional, and reassuring. Truly excellent service during a stressful situation.

Our traditional water heater died in the basement, and we chose DeMarco to install a tankless system. Adrian was the only one who suggested this efficient option. The installation was neat and careful, and the price was reasonable. We now have endless hot water—and peace of mind.

After struggling through an entire summer with a broken ductless unit, we called DeMarco. They engineered a new split system, installed it barely a day later, coordinated everything seamlessly—including electrician work—and left the place spotless. The unit runs whisper-quiet and cools like a dream!