High-Quality Commercial HVAC Service Available to Londonderry, NH and the Surrounding Areas

Great thorough service done for preseason check. Only issue was discrepancy in price for each unit.

Good work done!!!

Mike & Nate were great. They explained everything they were doing and showed me the camera view as they were... read moreMike & Nate were great. They explained everything they were doing and showed me the camera view as they were going. I would definitely recommend Rob Roy for mechanical work. read less

Prompt response, showed up on time completed repair in minimum time. Job well done, professional and cleaned-up leaving area better... read morePrompt response, showed up on time completed repair in minimum time. Job well done, professional and cleaned-up leaving area better than when he arrived ! Thanks, will be calling in the future when need a timely response and quality repair. read less

What good quality! Dimitri was very polite, hard working and explained everything! Would highly recommend this business We had... read moreWhat good quality! Dimitri was very polite, hard working and explained everything! Would highly recommend this business We had our expansion tank replaced and the furnace serviced read less

Professional, quality installation.

Very clean! Excellent work. Very nice people!

Mike was awesome! Would absolutely call them again!

excellent service professional and high quality

Easy, fast, and friendly appointment set up for 2 days later. Technician showed up on time and performed expert work.

We had a leak in the basement coming from a drain pipe. The local plumber said that they could not... read moreWe had a leak in the basement coming from a drain pipe. The local plumber said that they could not do the job and referred Rob Roy. I called and they arrived the next day on time. I knew they were professional when the CS rep who answered the phone explained to me she will call me back with a day and time because she needs to speak with the owner to figure out who was the best crew to send out for this type of job. Mike and Nate came and looked at the pipe and confirmed the leak was coming from above which was in the wall with no access. They took their time to troubleshoot with me and looked at different apartments to locate where they might be able to locate and access the pipe with causing the least amount of damage by opening up walls. When they determined where to access they started with just a small hole to fit a camera through. They were able to do it from just one unit and only opened up a couple of cuts to access the pipe. Long story short, they were amazing! 3.5 hours later the pipe was replaced. The old one had a huge crack in it. Mike and Nate were very professional and nice. Good work quality, they were working the whole time (not standing around smoking and talking like others I have hired from different companies in the past). While they were replacing the pipe, they realized something was still leaking through even after they shut off the water. It turned out to be a faulty flapper in one of the 2nd floor units toilet. Mike replaced it right away. Rob Roy Mechanical is now my go to for all my major plumbing needs! Thank you Mike and Nate, you made a very stressful situation not so stressful. read less

It was the first time using Rob Roy and I will be sure to use there services again. They were... read moreIt was the first time using Rob Roy and I will be sure to use there services again. They were good people, they knew what they were doing, reasonably priced and did a good job. I'd recommend them to other people looking for a plumber. Thank you! read less

Mike was on time. He was very professional as he went about his work. Mike installed a back flow for... read moreMike was on time. He was very professional as he went about his work. Mike installed a back flow for my upcoming sprinkler system. He did a great job. I would highly recommend if you need any work done for plumbing. read less

Came to fix a valve in shower. Replaced pipes put on a new shower head and fixtures. Great work,... read moreCame to fix a valve in shower. Replaced pipes put on a new shower head and fixtures. Great work, great price, and cleaned up after like they where never there. read less

Very good service