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

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.

These guys are really nice and knowledgeable. I texted (thank you for communicating in a way that…read moreI had to) and got a response really quickly. They ended up coming really quickly to service my boilers and some radiators and I felt really good about the price. I think I spoke to Sam who was really friendly and smart as he explained everything that they were doing or had to do. I hope I can use them again in the Future..

BEWARE of Albortz: **Sabotaged my HVAC to Create Repeat Business**…read more If you're in the market for HVAC services, I strongly urge you to steer clear here. Over the course of a couple of years, I've encountered multiple incidents that seem to point to deliberate sabotage of my heating and cooling system. I also have PROOF in my pictures. I'm somewhat handy, and if I was not, I would have been taken advantage of even more. Here's my story: **Incident 1:** It all started when my AC unit broke down during a heatwave. I had a newborn at home, so I needed help fast. Despite being on the pricier side ($500 for the visit), they were the only ones available quickly. The technician "fixed" the issue and tried hard to sell me a brand-new unit--despite the fact that my current one was still functioning. I brushed it off as a sales tactic. However, when the weather turned cold, I realized my **heat wasn't working**. I'm a bit handy, so I took a panel off to inspect the unit, and what do I find? The **gas line had been turned off at the panel**! It's important to note that the heater worked just fine before this service, so the only possible culprit was the technician. Had I not caught this myself, I would have likely been convinced that the entire system needed replacing--costing me even more money. **Incident 2:** Later, I did end up getting a new HVAC system (from a different company). However, my diverters (which control airflow) stopped working, blowing a fuse. Once again, no one else was available, so I had to call Alborz again. I was skeptical after last time, but thought maybe it was possibly an accident... This time, I was on high alert and watched him closely. He fiddled around and had me go check the thermostat downstairs while he "worked on the unit." Reluctantly, I complied. Sure enough, when summer arrived, **the AC stopped working again**. **Proof of Sabotage:** After some investigation, I discovered the technician **deliberately disconnected a wire** in my unit, which is why the AC wasn't working. I have photographic proof showing the disconnected wire and the work area, demonstrating this malicious action. --- **Final Warning:** It's clear to me this company has a pattern of **sabotaging equipment to generate more business**. These aren't simple mistakes; they're calculated actions designed to mislead homeowners into believing their systems need more work or replacement than is necessary. If you're considering hiring them, think twice--you may end up paying more than you bargained for, both in money and frustration.

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.

i usually like to call for 2-3 quotes but only did 1 with with Renato and he seem like a fair…read morestraight shooter with reasonable prices so i just went with him. got my water heater replaced, he prompted me that my pipes have not been in compliant since i bought my condo, also recommended to install automatic shut off valve. all the recommendations makes sense so i went with him. he was out the next day and finished job same day. no issues so far so would recommend him if you are looking for a good plumber who knows what he's doing. i got my property inspected as a new unit and the house inspector did not make any comment on the proper pipe that should be installed on a water heater.

These folks are awesome! They came out and replaced my hot water heater the next day. The folks…read morewho did the work were nice. They were reasonably priced and knowledgeable.

Had an absolutely amazing experience with Max Heating and Cooling! My old steam boiler developed a…read morecracked heat exchanger, and Max Heating was prompt, informative, and willing to do the replacement during the New Year holiday. Dan and Sam have been stand-out with the depth of their answers to my questions. I appreciate that immensely as a demonstration of how much they care about the subject matter, and how much they care about ensuring I'm properly informed on what is happening. Sam and his crew were out all day yesterday dismantling the old boiler and installing the new one. They were friendly and engaged the whole time letting me observe the process. Sam called me over throughout to show me up close what had corroded in my old boiler, and to explain to me how it happened. He did the same during install of the new boiler to demonstrate all the critical aspects for maintenance--including letting me unscrew and rescrew a piece to practice for future cleaning. The new boiler is running smoothly right now. I feel like I understand its pieces. Sam even took an interest in diagnosing why my bathroom heating panel (which has never worked) wasn't heating. He cleaned out its vent and it has heat now. My cat is very happy to be warm right now. From the way Sam and his crew talked through all the aspects of the work they were doing, it was clear they take pride in the quality of the work. This wasn't just a job to get over and done with. And what's more, they did it for $2k cheaper than my competing quote. Max Heating and Cooling will be the first people I call for any plumbing projects I have going forward.

Dan and his team did an excellent job replacing our old central air system. The entire process was…read moresmooth from start to finish. Everyone was easy to work with, responsive, and professional. The installation was done promptly and at a fair price, offering good value for the quality of work. They made sure the system was running perfectly before wrapping up. Highly recommend.

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.

Responsive and good service. I thought it was a good value. Ron took care of everything quickly.read more

Ron responded quickly, found the problem and fixed the faulty control board on our 15 year old…read moreCarrier condenser for a reasonable price. I definitely recommend his service.

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!