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Typical Greater Boston range for this kind of work, from regional averages — not a quote from Designed Temperatures. Use it to sanity-check bids, then get the real number in writing.
Estimated range
$5,000 – $11,400
Typical HVAC project around $8,200
Designed Temperatures is a New Bedford HVAC and refrigeration company that, according to a 2012 newspaper interview with the owner, has been running since 1981. Its reviews split hard on one question: whether the company follows through. On the good side, a 2022 review describes a same-day emergency heating call — the crew arrived about two hours after being contacted and phoned updates on their way. Another customer credits a technician named Matt with tracking down a used compressor instead of ordering an expensive custom part, and a Fairhaven neighborhood association's website lists Designed Temperatures as who services its furnace. On the other side, three separate reviews from 2022 and early 2023 describe real problems: a customer says leak-stop sealant put into a Mitsubishi mini split led the manufacturer to say the whole system needed replacing, with an estimate of $3,200 for labor alone; another describes staff arguing with each other during an emergency call at a medical facility; and a third says a promised estimate never arrived despite repeated calls. Because the experiences split so sharply, get any diagnosis and repair recommendation in writing before authorizing work, and get a second opinion before signing off on something as costly as a mini-split repair.
“I have owned and managed Designed Temperatures Inc. a Design and Build HVAC and Refrigeration contractor from 1981.”
“Designed Temperatures (servicing our furnace) 27 Veranda Avenue, Fairhaven”
They came to my place in May and told me they could do the job, they will call me with an estimate and never did. I called many types and left messages and when spoken to by secretary she says they will call me and never do. I just spoke to them today and they said they no longer do jobs in new bedford yet they are located in New bedford. Lack of communication and respect. Awful customer service. They should of told me that back in May not tell me otherwise leading me on I've been waiting almost a year now. Why is it so hard to find someone to install mini splits.
If you're looking for a friendly company that behaves in a professional a prompt manner, I would highly suggest you take your business elsewhere. We had an emergency job at a medical facility and contracted out for this company to be there to investigate the issue. Their service manager called us several hours after they were due to arrive to let us know that they would not being doing this job today and, in fact, had no intention of ever doing this job. Had I known that their employees would be this rude and incompetent, I never would have reached out to them in the first place.
They stand buy there work when issues arise, and make things right! Very happy with there service department
Beware of this company they came and put leak stop in my mitsubishi mini split. According to the manufacturer they ruined my whole system and now it needs to be replaced they gave me an estimate of 3200 dollars saying that was just for labor I am getting estimates between $3500-$4100 for whole new system plus labor. I have all my receipts from previous years showing they put the leak stop and the last technician invoice saying that they put the leak stop and now unit needs to be replaced per manufacture. I will be filing a claim at the courts asap.
Matt was super helpful and very professional. Fit me into his very busy schedule and found me a used compressor so we didn't have to pay for a custom order since our system is older. Great work.
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2 changes recorded — last scanned Sep 12, 2026.
Fast water-heater work4.8
Handles complex diagnostics4.8
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