Recent Jobs and Reviews
Job Locations and Reviews
Review
Amazing service as usual!!!
Qwentin G.
Reset the service reminder.
Merrimack, NH 03054
Qwentin G.
Completed the plumbing maintenance today. I started off with completing the maintenance on the Rinnai tankless water heater. I ran a cleaner through it for 35 minutes. I then flushed 10 gallons of water through it. I cleaned the inlet screen. I checked incoming gas pressure and that was according to manufacturer specifications. Next I checked all the fixtures and drains in the house and everything looked great except for the master bedroom sink. I ended up having to take apart the plunger and run drain cleaner through the sink drain. After that the water drained really nicely.
Londonderry, NH 03053
Qwentin G.
Completed the oil fired water heater maintenance today. I started off with replacing the oil filter, the nozzle, and the pump strainer. Next I drained down the tank. I pulled out the anode rod and it was almost completely gone. After filling the water heater back up I ran the burner. I performed a combustion analyzer test that checks the unit CO, CO2 and oxygen levels and it was running great. I also performed a smoke test and got zero smoke. I noticed that one of the connections going towards the circulator pump is corroded and starting to drip water so I will add that to the estimate. The slop sink in the garage is leaking water from the hose connection that attaches to the handle so those will need to be replaced.
Amherst, NH 03031
Adam P.
Replaced indirect temp sensor.
Barrington, NH 03825
Review
Professional service
Qwentin G.
Found that the thermocouple was starting to go. Replaced and tested operation and worked as it should. The expansion tank had failed so there was water pouring out the relief valve. Replaced the expansion tank and made sure the return came back hot.
Nashua, NH 03060
Jack D.
Tighten shower head mount. I applied blue loctite to the screw. Thank you!
Nashua, NH 03062
Qwentin G.
Flushed the water tank.
Barrington, NH 03825
Qwentin G.
Completed the indirect hot water tank maintenance. I drained down the tank and filled it up about halfway then flushed it again to get the rest of the sediment out. I pulled the anode rod and it was in very good condition. Everything went great today!
Barrington, NH 03825
Adam P.
Project Scope: We will install a complete makeup air solution to balance the new high-CFM kitchen hood. Following approval from the Mechanical Inspector, this system will be installed in the basement and integrated directly into the existing HVAC return ductwork, eliminating the need for a separate floor register in the kitchen. Equipment & Operation: We will install the Fantech MUAS 750 Makeup Air System. Capacity: This unit provides up to 750 CFM of fresh air to match the Thermador Hood exhaust rate. Intelligent Modulation: The unit utilizes a pressure transducer to sense the hood speed and automatically modulates the intake fan. This ensures we only bring in the exact amount of air needed to balance the home pressure. Mandatory Pre-Conditioning (Electric Heater): Per the Mechanical Inspector's requirement for injecting outside air into a forced air heating system, we will install an Electric Duct Heater inline with the makeup air unit. Function: This heater will temper the inco
Manchester, NH 03104
Qwentin G.
Replaced a leaking boiler drain cap at the Verizon store.
Nashua, NH 03060
Review
Qwentin, once again, did a exceptional job. He is always professional, courteous and gets the job done right and quickly. Qwentin and GSMS never let me down!
Review
Full explanation of the work to be completed and suggestions for future services . Answered all my questions. Very professional and knowledgeable.
Review
Qwentin is professional, friendly, and efficient! Excellent service.
Review
Both guys very helpful & solved the problem
Review
Fantastic service
Review
Very knowledgeable & very helpful
Review
Quentin arrived in time, was courteous and professional and answered all my questions.
Review
Excellent and professional work , all great
Love dealing with this company. Their techs are always prompt, efficient and courteous. We've been happy to be their customer since 2010.
Response from GSMS Air•Heating•Plumbing:
Thank you so much for the kind words and for being part of the GSMS family since 2010! It means the world to us to have earned your trust over the years. I’m proud of our team for continuing to deliver the kind of service that keeps clients like you coming back. We truly appreciate your loyalty and support. – Zak D., Second-Generation Owner
Qwentin was on time, very friendly and professional. He was able to identify the issue, communicate it effectively, and then fix it. Highly recommend.
Response from GSMS Air•Heating•Plumbing:
Thank you so much for the kind words and for trusting GSMS to take care of your home. Qwentin is a rising star on our team, and it means a lot to hear that his professionalism and communication made a strong impression. As a local, family-run business, we’re grateful for your recommendation and honored to have earned your trust. – Zak D., Second-Generation Owner
Great water heater service. On time and professional l He gave me some helpful tips on other water related issues. Highly recommend GSMS.
Response from GSMS Air•Heating•Plumbing:
Thank you for the great review! I’m glad to hear our Specialist was able to get your water heater squared away and offer some extra tips while he was there. We always aim to go beyond just the repair, and I really appreciate you taking the time to share your experience. Thanks for choosing GSMS — it means a lot to our family and our team. – Zak D., Second-Generation Owner
top notch service, always professional. would recommend to anyone needing HVAC service, repair or install.
Response from GSMS Air•Heating•Plumbing:
It was a pleasure serving you and your family. Thank you for sharing your kind words with us. It means the world to us and to our entire team!
Had an issue with our heat pump. Reached out for assistance and they had someone on site that afternoon. Problem was resolved quickly. Super friendly service. The tech was exceptionally friendly and an excellent communicator. Highly recommend
Response from GSMS Air•Heating•Plumbing:
It was a pleasure serving you and your family. Thank you for sharing your kind words with us. It means the world to us and to our entire team!
Adam, Quin and Mark did a wonderful job installing my replacement oil boiler and oil tank. I have trusted GSM for 3 installs at my house because of their professionalism, workmanship, honesty, transparency and integrity for how they conduct their family business. Everyone who has worked at my house has always been informative, on time and respectful. I would recommend GSM to anyone who needs to have major plumbing or heating/cooling done in their home. Gina in customer service is the best at relaying information and gets back to you in a timely fashion. Zak is wonderful to work with and the entire team at GSM treats you with kindness. Thank you again for another wonderful experience because when it comes to your home it is one of the largest investments you will make in your life, and I trust GSM to be there for me in the future.
Response from GSMS Air•Heating•Plumbing:
We thank you for sharing your positive experience. It made our day.
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