Robert M.
2/14/2024
Dave and crew do a great job and I would highly recommend. Had another HVAC company come out and the young kid did not know what he was doing. Experience matters.
Sigma Mechanical Services
Closed
(21)
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25 Rockwood Rd
Marshfield, MA 02050
Sigma Mechanical Services is a full-service heating, ventilation, air conditioning, and refrigeration company based in Marshfield, MA, serving the South Shore and surrounding areas. They specialize in commercial HVAC installations and plumbing services, employing state-of-the-art technology to ensure systems run smoothly and effectively.
The company prides itself on its team of fully trained technicians who provide 24-hour emergency service and customized scheduled maintenance checks. With a commitment to customer satisfaction, Sigma Mechanical Services has earned a reputation as the most trusted HVAC company in the region.
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Reviews
3.521 reviewsErin O.
3/13/2025
Don't use!! We've used them as our service provider for heating. Woke up to a massive flood and water shooting out of our unit at 5am ( I suspect they didn't inspect or fix it appropriately...
RJ R.
12/1/2022
Filed a complaint with the Better Business Business after Sigma-installed fittings leaked, leaving us without AC cooling for 2 months of the summer. Company didn't return multiple calls about...
Jane M.
7/19/2020
I had two companies come to my house to look over my 3year old air conditioning unit that was not working both companies said they would return the next day and neither ever showed up. I really...
Pauline I.
6/9/2022
Don't use them.......even if you're desperate! My 90 year old mother used Sigma for 13 years and thought she was receiving great care. Unfortunately, this was not the case. She requested a new...
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