Recently had our Central Air system replaced. The workmanship was outstanding, and they left our…read morehome clean when the job was finished. The new system runs quietly, cools the house perfectly, and has made a huge difference in our comfort. It's clear they take pride in their work and care about customer satisfaction. Peter

My mother's condenser stopped working at worst possible time this summer. This company also…read moreinstalled my home air-conditioning system so I knew they were reliable and trustworthy. I was able to get them scheduled for a couple days out, on a Friday afternoon end of day no less, and the technician was able to diagnose and fix the unit within 10 minutes. Matt was very professional and explained everything. Appreciate the service from this company. Thank you.

This would be 5 stars if they didn't end up price gouging for a routine maintenance visit…read more I've used them before, once for a routine service visit and once when a radiator pipe was leaking (they ended up also doing our next service on the boiler at that time). The first time they did the maintenance, they didn't drain and refill the boiler, which was always done by any previous service techs. The second time I asked them to (after they replaced the bolt on the leaking pipe) and they did. In June of this year when they came for the maintenance, I mentioned that I'd like the boiler drained/filled again. Steve starts talking about how if I want the boiler drained, there are separate charges since they are different jobs, the burner and the water. This is news to me; every reputable tech has always drained the boiler as part of the service, even when we had an oil boiler, and the charge includes both services. After spending no more than 15 min total on my boiler, I go to write a check ($125 a year ago) and he says he needs to call the office to get the price. Red flag. They did not quote me when I called, but I also had used them before for the same service and knew that if the price went up, say to $150, I would have been fine with that. He returns and says it's $325 and does this song and dance about how their costs have gone up and he's not going to charge me the $125 fee to come out. What? It would have been $450 for a 15-minute scheduled routine maintenance call? I followed up with the office a few times to get an invoice with the 2 "charges" broken out. You guessed it, a month later they have ignored the request. I try to keep my business local rather than go with the big companies. Top Mechanical gave me a great lesson on how the little guy will choose to rip you off if he feels he can get away with it. Go with the big company is the takeaway if you don't want to be ripped off.

From start to finish, this company delivered outstanding service. Their team was professional,…read moreknowledgeable, and extremely respectful of our home. They walked us through every step of the installation, answered all of our questions clearly, and explained how to use and maintain our new heating system so we can get the most out of it for years to come. The installation itself was done with great attention to detail -- they arrived on time, worked efficiently, protected our floors, and cleaned up so well it looked like they were never here. The difference in our home's comfort is incredible, and you can tell the work was done right. It's rare these days to find a company that combines fair pricing, quality craftsmanship, and exceptional customer care, but they truly delivered on all three. We highly recommend them to anyone looking for reliable heating services. We are beyond satisfied!

Immaculate install and follow up and they navigated the rebates process for me…read moreThey installed a dual fuel system with propane and Heat pump and smart thermostat that works beautifully

Not reliable, unprofessional! Having problems with a new system they installed. The heat went out…read moremultiple times over the winter, and now the AC flooded the basement. We called and they were supposed to come for a service call, but they no-showed, and we never heard from them again. We have called multiple times, over weeks and weeks and they never return any calls. I would absolutely NOT recommend. They seemed great at first, but now I'm sorry we used them!

West Side oil installed a gas burner in my little fireplace. The price for the whole thing was…read morewell within my budget. But that's not the best part. After it was installed, and a gas tank position in a discreet place on my property, the technicians came back twice to make sure I was comfortable using it. John was especially helpful, gave me more information and showed me how to use some features. I got an invoice this morning- $0.00. Surprised and grateful. Thanks WSO- Jackie

Service from West Side Oil is phenomenal, both Oil Service and plumbing. Employees are the nicest,…read moremost considerate business people I know in the business. My promo stopped working in the morning of December 26. They were at my place within 40 minutes, and also arranged for an oil delivery at the same time. That Alec is eye candy doesn't hurt either.

Avoid this business at all costs! They use deceptive hidden fees and bait-and-switch pricing. Avoid…read morethis business at all costs! They use deceptive hidden fees and bait-and-switch pricing. On July 9 2026, I had a terrible experience with Alvin's Plumbing and Heating LLC. Before scheduling, I called to ask about their diagnostic fees to estimate a under-sink filter leak repair. A representative told me it would cost $60 to send a technician, who would then give me a price estimate. However, when the technicians arrived, they never mentioned a hidden baseline fee of $195 just to touch the plumbing. One technician immediately began working without providing an upfront estimate. He cut one inch of a small 1/4" plastic pipe, which fixed the leak. When I asked for the total, he revealed the $195 charge. I was outraged by this hidden fee. Since he was already there, I asked about replacing a bathroom faucet. I explicitly asked if the $195 would be separate or if it would roll into the cost of the new job. They told me, "No, the $195 is going to roll into the cost of the additional job." The office quoted a total price of $225. I agreed to this. After the work was done, they wanted charge my credit card $420 ($195 + $225), completely going back on their word. I requested the manager's number to dispute this overcharge, but the owner refused to honor the agreed upon price. Despite multiple phone calls, I have not received a refund. This company uses misleading sales tactics, hides fees until the work is done, and takes advantage of old citizens. I am submitting an official complaint with Better Business Bureau

I found them to be very trustworthy. Excellent service from my 1st call all the way to Rick coming…read moreand doing my repairs. Price was very reasonable. I hope I don't need a plumber anytime soon. But if I do they will be my 1st call.

I'm not very happy with Noonan Energy right now. The price of oil has increased by 18.5% since the…read morewar with Iran started, yet Noonan has increased their priced over 30%. It went from $3.58/gallon to $4.58/gallon. I feel that was a little excessive. PS I'm not from San Francisco. I live in western MA. Can't change it.

I've been dealing with this company for a year and a half and I can tell you the customer service…read moreis not there. The woman in the office has a horrible attitude. Every time I call, whether it's regarding an oil order or service for the system she is not a nice person. If you hate tire job you should quit! The guys that have come out to my home have been nice, both serving and oil delivery. Unfortunately, the woman answering the phone is the "face" of the company and ruining the reputation. I won't be ordering oil or service from here again thanks to her bad attitude and disrespect. Too many companies to deal with bad service. Find a company that is welcoming and wants your business, Nonnan doesn't.

Simply the best. I needed my boiler replaced and caught Gary at the right time as I'm in the…read moreBoston area which is not where he typically works, but we chatted and he agreed to drive to my house. I knew of his reputation from a heating help board I had been on in the past and knew he was the guy I wanted for my install. When Gary says he'll be there at 7am you better believe him. He showed up on time and went right to work. His lead plumber came shortly after and drove what I'd call a mobile plumbing shop. These guys don't mess around, they had every tool and fitting imaginable and I couldn't have been more impressed, except for the fact they were heads down all business the whole time they were here. Gary was here from 7am to 6:30pm and spent the time to make sure everything was perfect and that I knew all of the features available before he left. The quality of the work was beyond impressive and we couldn't be happier! Btw, the boiler is a Viessmann and it's awesome, I can monitor it from my phone and on a recent trip I was able to lower the domestic hot water while we were away which saved us gas.

Wilson Services come by for two jobs in the past month, replacing a hot water heater and updating a…read morepart of the heating system. The crew did an excellent job in both cases. Definitely a cut above the competition.

We had central air but we have a sunroom that is mostly windows. The room gets extremely hot in…read moresummer even with shades down. The room has ac ducts but the central unit works really hard to cool house. most of the time the sunroom heats up the house. Diamond comfort put a minisplit in Sunroom. I think it is really efficient. Only because the big central unit only comes on at a certain temp. It's like now that the sunroom is cooled the bigger one is not on as much. Diamond did a great job handling everything from install to paperwork. I am very happy with this unit.

Several years ago, we engaged Diamond Comfort to install 2 mini-spilts in our home. They did a…read moregreat job and handled all of the paperwork for the various rebates available to us. We have since moved, and in the new house we have two pre-existing mini-splits, whose last service was unknown. I called Diamond Comfort to come out and service the units. The technician (Aleisha) was prompt and efficient. She asked a few questions about how the units had been operating to ensure she addressed our concerns, and performed the maintenance, giving us peace of mind for the winter. She also cleaned up, leaving no trace of any equipment or cleaning supplies. We highly recommend Diamond Comfort for installation and servicing.