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Nicholson is a big Holliston outfit, with 4.8 stars from 3134 ratings on Google and 4.6 from 513 on Angi, and the recent reviews pull in two directions: praise for individual technicians, and anger at scheduling and diagnosis. The company describes itself as family-owned, offering plumbing, heating, air conditioning and electrical work across Metrowest with 24/7 emergency service. The technicians get the credit. A July 2026 customer said Guilherme came within 2.5 hours for a dead central A/C, found the capacitor and fixed it within 20 minutes. In a January 2026 review, a household whose heat broke in bitterly cold weather said Luis traced a thermostat that wasn't communicating and a furnace board stuck in A/C mode without ordering expensive parts. A September 2025 reviewer with a burst pipe called at 830PM and had a plumber on the way by 730AM. An August 2025 customer said Jimmy Silver came on a Sunday morning to replace a leaking water heater, adding an expansion tank and an auto shut off. In a March 2024 r/framinghamma Reddit thread, a commenter said Nicholson had the tank on hand and was able to do their replacement on a moment's notice. The complaints in summer 2026 are sharp. A July 2026 reviewer whose 8-head mini split compressor failed on June 30 still had no air conditioning on July 22. Two July 2026 reviewers said technicians jumped to recommending a full system replacement, one adding that they were charged $520 after a thermostat swap that fixed nothing. June 2026 reviewers described maintenance-plan visits pushed to December or cancelled at the last minute, and a June 2026 customer said a valve replacement was quoted at $597 before discounts brought it to $457.45. A 2026 Reddit commenter said Nicholson wanted about 40k for a heat pump system. The company's Massachusetts plumbing license 3531-PL-C is expired.
“Nicholson wanted ~40k off me for a similar system 🤣”
“Add Nicholson Plumbing and Heating to the list. They used to be small, local, reliable.”
“Nicholson Heating and Plumbing replaced mine recently. In and out. They had the tank so they were able to do it on a moments notice.”
“You are missing an exceptional provider - Nicholson. They provide service close to Malden. They are super knowledgeable, do exceptional work and are very price competitive.”
“The majority of the employees are pleasant and willing to help when needed. I felt valued and was able to learn the ins and outs of the plumbing and heating industry because of the support I received by both the technicians and the office staff.”
“Nicholson Plumbing, Heating & Air Conditioning prides itself on customer service, earning an A+ rating with the Better Business Bureau (BBB)”
“What sets Nicholson apart is that we look for a lifetime customer, not a one-time customer.”
Tyler did an excellent job of explaining what was wrong and what my options were. Service was quick and Tyler was courteous and professional.
Mini split annual maintenance.
Our water heater broke and we needed it replaced ASAP. Derek came out on a Saturday and checked out the situation. He went to the plumbing supply store right away before they closed to pick up the new water heater and when he got back to the house, after opening the container, discovered that the heater was damaged. By that time, the supply store had closed. He made it a point to come back on Monday even though it was his scheduled day off because he wanted to finish the job and make sure we had hot water. He spoke with his office about returning and was able to pick up the new unit on Monday and install it. Great job and I am very pleased with Nicholson’s response to the situation. Thank you!
I cannot say Enough good things about Luis, service representative from Nicholson. He was knowledgeable, conscientious, and kind, in helping to diagnose the issue in our house. I couldn’t recommend him enough.
I have been a customer for 4 years, paying for regular HVAC maintenance. My long planned and scheduled spring maintenance appointment was canceled by Nicholson the day before and I was told it could be rescheduled for October. I asked to be put on a waiting list to have the A/C maintenance before the fall. I never heard back, so I called service in late July and scored a cancellation that week- but only after I took the initiative. On the day of the work I was given a 4 hour window- and when I called for an update on time I was lied to about when to expect the technician. Finally, at 4 pm on Friday Luis Andrade showed up and did the work with amazing dedication and perception. Luis made me stay with him as he explained each task and system - how they work and what they needed. In short- poor performance by the company- great work by Luis. 2 stars for the company, 5 stars for Luis.
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3 changes recorded — last scanned Sep 27, 2026.
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Nicholson Plumbing, Electrical, Heating, and Air Conditioning. 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
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Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
Ownership
Certified attributes are verified against the public registry. Others are the business's own statement.
Multi-zone mini-split heat pump installs4.2
Central A/C replacement with a humidifier added3.0
