Sigma Tremblay

Wappingers Falls, NY Owner / Principal: John Tremblay

Sigma Tremblay provides residential and light commercial HVAC services, including heating, cooling, system installation, repairs, maintenance, and indoor air quality solutions.

About

About Sigma Tremblay

Based in Wappingers Falls, Sigma Tremblay has provided HVAC services for 50 years to residential and light commercial customers. Its work includes heating and air-conditioning installation, repair, and maintenance, along with boilers, furnaces, heat pumps, ductless systems, geothermal HVAC, radiant floor heating, and oil-to-gas conversions. The company also handles duct repair and maintenance, indoor air quality, Wi-Fi and smart thermostats, energy audits, insulation and weatherization, and maintenance plans. Additional services include standard and tankless water heaters. For commercial and new-construction projects, Sigma Tremblay provides HVAC installation and related system work. The company serves Beacon, Fishkill, Hopewell Junction, Hyde Park, Myers Corner, Newburgh, Poughkeepsie, Red Oaks Mill, Spackenkill, and Wappingers Falls, as well as customers elsewhere in Dutchess and Orange counties.

Google reviews

Featured Google Reviews

A selection of recent reviews currently displayed from this contractor's Google Business Profile.

4.8average on Google Maps · 38 ratings via Google Maps
  • Gary Strait★★★★★October 16, 2026

    2 years ago I had John Tremblay stop by to quote a possible heat pump install. We had a good discussion, and the quote was fair, but in the end I decided not to invest in the heat pump, it was going to be a big project and I decided the investment wasn't worth it. I already have an efficient (23 year old) EK System 2000 heating system. John mentioned that they could service that for me if I ever needed it. Recently, that system developed a minor issue that needed service, so I decided to give Sigma-Tremblay a call. The person who answered my call was very helpful and knowledgeable, and we discussed the symptoms over the phone. She set me up with an appointment, then called back after checking with one of their techs, who confirmed what the likely issue was. They sent out a tech with the parts it might need, and arrived close to the scheduled time. The tech was also helpful, and confirmed the diagnosis, and completed the repair quickly, at a reasonable and fair price. I was very satisfied with the service, both with the office, and the tech who made the repair. If I ever decide to install that heat pump, I'll be back in touch. Thanks for doing a great job, and I'll also be back in touch for any future service.

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  • Robert Natale★★★★★October 6, 2026

    Always great service from the office and all the technicians Wouldn’t use anyone else

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  • Eric Gulliksen★★★★★September 16, 2026

    Friendly, informative, intently listened to the details of error, codes, and other past history concerning the heat pump apparatus outside very polite, And showed up for the appointment right on time. Enjoyed our exchange of information with each other.

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  • Lori Lear★★★★★August 4, 2026

    Consistently excellent service. Quick response time. Hot water on demand Heater was leaking. Fixed quickly same day

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  • aubrey Nugent★★★★★July 29, 2026

    This company is great. The ladies in the office have great customer service, aswell as the guys that do the maintenance. I highly recommend them!

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Sigma Tremblay(845) 210-6535