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Typical your area range for this kind of work, from regional averages — not a quote from SAM Mechanical. 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
A homeowner writing in July 2026 described SAM Mechanical replacing an air-conditioning system just before the Fourth of July, with the house already cooling shortly after the crew finished. The customer said the project took two days and cost more than $10,000. They praised Sandy’s handling of the initial call and service manager Kevin’s accessibility, saying both responded to texts within minutes. Kevin had also arranged to return the following week to check on the installation. SAM Mechanical’s website describes a Merrimack-based contractor serving residential, commercial and industrial customers across New Hampshire. It says the company installs, repairs and maintains heating, cooling, plumbing and piping systems and has 30 years in business. Its New Hampshire mechanical business entity licence, MBE0006359, is active under SAM Mechanical Services LLC. BBB gives the company an A+ grade and lists it as accredited, with a Hooksett address. Google displays 4.4 stars from 59 ratings. In an April 2025 Google review, a customer who hired SAM to install a home mini-split system praised the technicians’ speed, knowledge and politeness. The crew kept the customer informed, cleaned up and demonstrated how to use the system. A July 2024 reviewer described technician Tim repairing a broken HVAC system and teaching maintenance tips. A June 2023 reviewer praised customer service and called the rates reasonable. In an October 2026 r/newhampshire thread, a commenter recommended SAM Mechanical after it replaced their oil boiler when they switched to gas. One April 2022 customer described a different experience with after-hours billing. They had previously used SAM for furnace and air-conditioning replacements, maintenance and repairs, and praised the technical work. When the furnace stopped on a Friday evening, the caller said the office offered a Monday appointment or a visit that night with a $60 surcharge. The technician diagnosed a faulty oil-tank gauge and an empty tank in under 20 minutes; the reviewer explicitly said the fuel shortage was not SAM’s fault. They later received a $265 invoice and said repeated requests for a breakdown brought explanations of a flat after-hours rate and one-hour minimum, but left them dissatisfied with the office’s communication. Their complaint concerned the calls, invoicing and emails, rather than the technician’s work.
“Check SAM Mechanical out of manchester. They did an amazing job replacing my oil boiler when I switched to gas”
“SAM Mechanical in Hooksett is a local company and if they can't do the job can give you recommendations.”
Best experience with a service provider I’ve ever had. Customer service was outstanding from the moment I called. Sandy answered—she felt like a close friend immediately. They prioritized my residential installation 2 days before a major holiday (4th of July) and it was 100 degrees outside! Kevin, the service manager, was also extremely friendly, professional, sincere and honest. The AC replacement and installation cost over $10k, which was terrible news, but it was the most favorable experience I’ve ever had with a service provider despite having to spend that kind of money unexpectedly. They did project in 2 days and Kevin’s coming back to check on things next week. Kevin gave men his cell and is super accessible. Same with Sandy. I can text them and they respond within minutes. My house is already cooling down and they finished the project 20 minutes ago! BTW, I feel very safe having them in my home whether or not I’m there. Finally, I’ve worked with the same small, family-owned service provider (heating and plumbing group) in Manchester that my family has worked with for 40+ years—and they’re family friends—but I’m switching to SAM for all my AC (and almost certainly my heating and plumbing) needs now because my service and experience was that outstanding. Big thanks to Sandy, Kevin, and the rest of the crew for prioritizing my project and for making the process so easy. I genuinely enjoyed working with you all and look forward to working together in the years to come.
My wife and I hired Sam Mechanical to install a Mini Split System in our home. We could not believe how quick and proficient the install was. I am an extremely picky person and usually do everything myself. I was super impressed with the tech’s professionalism, knowledge and how polite they were. They kept me informed on what they were doing and asked multiple times if I had any questions. When the install was complete, they cleaned up after themselves, and showed me how to use the system. As I said I am very picky so when they left I inspected all of their work and could not be happier if I did it myself. I would recommend Sam in the future. In fact my son is now looking to have them do an install for him. Kevin
Amazing company. One of their tech’s Tim came to our house this morning to fix our broken hvac. He was friendly, professional and did great work. He also taught me some maintenance tips I was unaware of that will save me in the future. Highly recommend SAM mechanical, not just for great service but looking out for your best interest. Thank you!
Great customer service and reasonable rates. Would recommend highly.
I've used SAM Mechanical for a furnace and an AC replacement, plus maintenance and fixes since I moved to the area a couple years ago. USUALLY they tend to be a little pricier, but provide reliable, professional, and quality service. However, in my latest interaction I was disappointed. I'm 6 months pregnant and the furnace died about 8 PM on a Friday, given my condition I was more worried than normal about going without heat. We'd recently had SAM out to fix what seemed like this same problem, so that was our first call. The person on the line didn't seem to pleased to be getting an after hours call. They offered us a Monday apt, but then I'd have had to go all weekend with no heat. We were told we'd pay a $60 upcharge if we insisted on having someone out that night. My husband and I figured fine, let's do it for some heat. The service tech arrived and in <20 min identified that the issue was a faulty gauge on the oil tank and an empty tank despite our automatic delivery agreement (not SAM's fault). So we felt a little dumb and had to go the whole night without heat anyway. A few days later, we receive a $265 single line item invoice. Sticker shock for me, thinking worst case scenario $150 hour + $60 upcharge x 20 min was only going to be like $84. I figured even if it wasn't communicated, we might get hit with a 1 hour minimum... still that would be closer to $200 bucks. I went back and forth with the office by email. I have to say even a little empathy would have soothed my ruffled feathers. But when I asked for help understanding the breakdown of my bill, I got a side-step response "I asked [your husband] if he wanted to wait, and he said to me, no, my wife would like someone to come tonight." A repeated attempt to understand how the charges were calculated got no response. A follow up request got sent to the office manager who just kept repeating that there's always been a flat hourly after hours rate, with a one hour min. Decent customer service in this situation would be a "sorry for the miscomm," or a gesture like "let's take $10 off your next service for the confusion," or even a basic "I can understand how that might have come as a surprise; we'll follow up and ensure we explain the flat rate and hourly minimum charges in the future." I am disappointed in how this was handled. I historically pay a little extra for SAM because I've received a higher caliber of customer service and this didn't feel the same. Service tech was still great mind you. My issue here is solely with the office staff handling calls, invoicing, and emails - not the work itself.
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3 changes recorded — last scanned Sep 30, 2026.
Active plumber license4.4
Mini-split installation4.3
36 years in businessNot yet rated