Extremely happy with the services provided by James. He installed a 6 unit/2 compressor heat pump…read moresystem in our 150+ year old house in about two days, demonstrating superior knowledge of the system and suggesting actually aesthetically pleasing choices for ducting etc. that many other contractors ignored. Price was reasonable for the scope and system specs, and James was extremely responsive and patient throughout the whole process. We also really appreciate James's help coordinating with MassSave (including some truly terrible inspections), ultimately enabling us to claim our full rebate. I'd highly recommend working with James, and we will continue to reach out to him for all our HVAC needs!

After a 3-yr search and MANY bids for a new HVAC, we settled on James Wu, who installed our system…read morelast month and proved the research paid off. Below are things I wanted to know before choosing a contractor; maybe it will be helpful for you. Our situation: 100+ yr old home with current boiler in basement. We recently insulated our walk-up attic - that would both freeze and melt items stored there - with closed-cell spray foam (more research there), added drywall and will use it for storage. This is where the air handler and ERV (for ventilation) went. Our upstairs is now ducted, with one vent running through a closet on the 2nd floor to 1st floor. We also added a Mitsibishi floor mount unit and a ceiling cassette on 1st floor. So, we had a VARIETY of equipment installed, requiring a contractor experienced in not only ducting, but mini-split installs with both a ceiling cassette and floor mount unit. We did not want the large wall mount mini split units. Our walls/ceilings are PLASTER, (metal wire mesh and cement-based): cutting them is a JOB. And, we wanted the floor mount unit RECESSED. COST - James was in-line with our other bids, which came in between 27k and 39k, largely depending on equipment recommended, with ceiling cassettes costing more. Many contractors simply would not install them, and wanted to run ducts in the corners of all upstairs rooms to first floor, which to us was a last resort. COMMUNICATION - James is very responsive to texts, emails, and even more importantly, he is a fantastic communicator. He is very calm, not pushy, explains things in an easy-to-understand way that clearly shows he knows his business. I actually told my husband after he left for the first time, "I think we may have found our guy" just based on his personality and knowledge. He's likeable, which isn't a requirement, but definitely helps. EXPERTISE - This is what truly sets James apart. Our needs were fairly complex, requiring interior ducting, 2 outside units with exterior line sets, and recessed ceiling units, but also RECESSING the inside floor unit into an interior wall. We've overseen several renovation projects recently and could tell these guys knew what they were doing. Also, they were perfectionists, and paid attention to details you don't often find with contractors. DEPENDABILITY - Not a single missed appt. Showed up on time with clear communication. The job took a week. He also helped with Masssave paperwork. They cleaned up after themselves each day, which we appreciated. KNOWLEDGE - Extremely versed in Mitsibishi equipment. He's a Diamond Contractor, which extends our warranty, but we'd have chosen him regardless. Every question I had about these units (cassette and floor unit operation, air handler, ERV, outdoor units, thermostats...) he knew the answer to. When I researched anything specific online, from multiple and trusted sources, I found the info he'd given me to be correct. I trust his knowledge and I don't automatically do that. One example: our ceiling cassette has an internal thermostat and it's off by several degrees regularly. I researched it and found we likely need an external thermostat separate from the unit to measure the room's temp. I texted James a photo showing the inaccurate reading and his immediate reply, "you need an external thermostat. I'll install one." That's what I'm talking about. INTEGRITY - Example: After the permit inspector left, James explained his philosophy on inspections. Each city apparently has different requirements. He learned several years ago how strict one particular city was, requiring a blower test to determine air tightness and the passing score was 4% or less. He got 4.1% and city wouldn't pass it. This required a lot more time/energy to go through everything and another test and more $$. So, now James says to his guys, "We install to the strictest inspection every time, regardless of the specific city's requirements, so we don't ever have to redo anything." In our case, the city didn't need a blower test but if they did, I feel confident we would have passed! I don't often take time to write reviews, esp this lengthly, but I felt it was warranted here. Finding an HVAC contractor is HARD; it's time-consuming and complicated. And a lot of money. Three years of research finally led us to James and now, looking back, it was worth the wait and headaches in research. I would highly recommend anyone in the market for a new HVAC, especially if it involves Mitsibishi and especially ESPECIALLY if it involves recessing any equipment like ceiling cassettes or wall units, to consider James Wu. He and his team are uniquely skilled in their work.

My central AC stopped blowing air so I reached out to a handful of companies…read more Alex got back to me quickly and worked with my busy schedule to agree on a day. I have a very old AC unit that's in the attic and I wasn't very optimistic but after about an hour of working on it Alex got it working again by replacing a fan and installing a new thermostat that was compatible with new part. He has to work hard as it was warm that day and probably 90 degrees on the attic . Alex was very professional and personable. Price was incredibly fair . I would recommend and I will use Alex and his company again.

Alex and his team did a wonderful job replacing our two gas funaces that were probable 70 years old…read moreat this point, no exaggeration. They were responsive, straight to the point with their estimates, knowledgeable, and very helpful with any questions we had. Very good experience front to back.

Jason serviced my 22 year old furnace. He was great and explained everything involving the…read moredifferent parts that would most likely need to be replaced within the next year or so. He also gave an estimate for the parts and for a new unit.

I met Jason, after an AC failure on of the hottest days of Summer. Jason contacted me promptly,…read moreprovided all the details and was upfront about everything including his service fees. He was at my place at promised, and got to work. He explained everything as he motored on and worked the problem. He came fully prepared with every possible part monitor upgrade and suggested only what was required. He was very pleasant to work with and was very easy to talk with. I would definitely recommend using Donovan Mechanical and request for Jason if he is available.

This company was a pleasure to work with. Naomi and Romario provided excellent customer service…read more They provide great value and fixed my oil filters, oil pump and noseil.

Lewis Superior responded on very short notice to my plea for dryer duct cleaning. My new super…read moresensitive dryer doesn't work unless the vent is really clean! I asked on a Friday afternoon and they sent a tech at 8am on Saturday. Romario provided great service, was polite and removed his shoes. It was easy to pay with Zelle and I will definitely use them again in 6 months. Very reasonable price too. We're already under contract for our HVAC cleaning but I know they provide the service and I imagine they are as responsible and polite as they were with this.

When I put in a request on yelp for help with an issue with hot water in our shower, the fastest…read morenon robot response was from Greg. He was patient with me and my questions. He was also able to make sure that I not only got an estimate that sounded fair, but that I also got seen immediately by the other guy that works with him (James.) When you see someone on yelp with no reviews yet (at the time most of the reviews were filtered) you feel apprehensive but based on how communicative Greg was I went for it. James was very knowledgeable and even entertained a few questions I had about potential future jobs. He was expeditious and well prepared for the job (he knew what part I needed and already had it purchased before arriving.) I was very pleased overall and will definitely be hiring them again in the future.

Greg was very knowledgeable and helpful. he helped me purchase a new sink faucet and installed it…read morein no time. I highly recommend him if you have any plumbing needs

Great service and great work. He listened to all my concernsand questions. The price was great.read more

I can't recommend Lance and his partner enough. I had a fairly complex dryer duct issue that they…read moreresolved quickly. So great to have fast and reliable service professionalsl Thank you!

Dan is great. Extremely knowledgeable and quick to diagnose and fix my issues. Saving his number…read morefor future jobs.

Buying a mini-split system is an incredibly difficult process. The Mass Save rebate system is very…read moredifficult to navigate. I got quotes and presentations from 4 different vendors and the pitch and price was exactly the same - hour long presentation and a $30k cost. However, what each vendor tells you is that IF you qualify a $10k rebate is available and your net cost is $20k. Essentially the rebate is a scam - it just gives contractors the ability to inflate the prices and use the rebate to make the system sound cheaper than it really is. I finally met with McIver and he was able to simplify the entire process. He is not a Mass Save contractor. So he does not work the rebate, just offers a strait-up cost to install the system. When he gave me his quote, I quickly figured out that Dan McIver was an honest man and that the whole Mass Rebate program was a scam. His quote with the similar equipment and the same number of mini-splits was $13,500. I hired him for the job and they started within a week. One of my biggest concerns was esthetics - I was worried about too many refrigeration lines running around the outside of the house. Our house is a rental property in Cape Cod that had a lot of charm to it and we did not want to ruin the integrity of it. Dan came up with a brilliant solution and was able to run most of the lines through the basement to minimize the lines on the outside of the house - we were so pleased with this solution. His team did a fantastic job building out the system - they were clean and finished the project on the timeline he quoted. The work was high quality!! Net is that Dan took a very complicated buying process and made it simple and affordable. He is highly recommended for the quality of his work, pricing and his honest and straightforward approach!

This was our first time using an HVAC service technician. Very happy with the service Marc…read moreprovided! He was thorough in inspecting and cleaning all the system parts, filters etc. His pricing was fair and it was super easy scheduling the appointment. Highly recommend him and will continue consulting him for any HVAC issue in the future.

Excellent provider. Good follow through on requests. ATVO has a top notch reputatt FG ion. No chip…read moreon shoulder if circumstances force the customer to pick a different HVAC company.

I can't thank SSM enough. One zone of our house wasn't heating. Our usual company couldn't come for…read moreover a week. (!) Called another company who sent 2 guys for 3 visits because it just didn't get fixed. They charged us ~$2000 for replacing two things + labor, and the problem still wasn't fixed. At that point I decided to pivot. Went on a local FB page to ask for advice/names, and SSM came highly recommended. I called them on a Sunday and got an actual human in the office! (The other company has an AI assistant who sounds real. It's creepy.) Bruno from SSM came today, did a lot of diagnostic work, and figured out that the problem was electrical. We were charged just $232.50. Bruno took the time to explain things to us, and didn't try to sell us things. The only good thing to come out of this frigid situation is finding South Shore Mechanical. Thank you so much for your kindness and integrity! Don't ever change! Will definitely do business with them again.

Have done business with SSM for years and have always found them Reliable, Responsive, and fair. I…read morecan't say enough good things about this company. Special comment for Bruno, the chief technical person, awesome to deal with and extremely knowledgable about all things Heating and Plumbing related. They are definitely my first call when mechanical need presents itself in the future. John Corry, Hingham, Ma