Recent Jobs and Reviews
At a glance
GSMS Air•Heating•Plumbing has completed 10 jobs in November 2026.
The 25 customer reviews shown here average 5.0 out of 5.
The most recent job was on November 6, 2026.
Recent work covers Manchester, NH, Merrimack, NH, Nashua, NH, Amherst, NH and Barrington, NH.
Job Locations and Reviews
2 furnace PM's. The York furnace needs new inducer + collector seals.
RTU Maintenance. New filters + Belts. Replace inducer motor and exhaust piece due to a hole caused by corrosion.
Lennox sent me the wrong part. I found that it most likely is another part causing the issue so we will get the parts ordered as soon as possible.
Qwentin did the annual maintenance on our furnaces. He is professional and thorough. Any concerns that require follow up were noted and photos sent to illustrate what will need to be repaired on a specific furnace.
Oil boiler PM.
Completed the gas furnace maintenance. Everything went great. I replaced the air filter.
Completed the gas boiler maintenance for apartment 42-C. Everything went great.
Furnace PM.
Completed the gas boiler maintenance for apartment 42-A. Everything went great.
Replaced shower cartridge
Replaced basket strainer and order brass basket strainer
On time professional
Great service, friendly and excellent pricing
As always very easy to work with GSMS, professional and timely with no unexpected issues or problems.
Excellent service!
GSMS was quick to respond to my heater issue and scheduled a technician, Jack. He was very knowledgeable and thorough in diagnosing the problem and explained what he did to resolve it.
Friendly and knowledgeable, gets the job done right.
In the twelve years that zI have had the ductless mini splits, never has a cleaning been done that I just experienced. I cannot say enough regarding this young man who went above and beyond and paid attention to every detail. It was a pleasant experience and he had incredible patience with my pup who followed him throughout the house.
Good service and very efficient. Easy to address issues and coordinate appointments.
Qwentin always provides knowledgeable and friendly service.
Wow! I'm so excited to become a GSMS Air Heating Plumbing Home Club Member! Qwentin Gauvin is absolutely fabulous. So kind and talented and dedicated. I am so grateful!!
Welcome to the club, Rachel!! Qwentin is one of our amazing Specialists and I'm so grateful we can take care of you and your home! -Zak
GSMS has been the most professional and helpful company we have worked with. They have helped with a handful of small project with plumbing and heating issues leading up to them installing a brand new boiler into our home. They were always willing to answer any questions I had and even made noise visits to talk about the project which was greatly appreciated. Every person that has come to help us out has been so knowledgeable, friendly, and helpful which makes the project so much better. The new installation of the boiler went smoothly and they were able to explain everything going on to me when I asked and left me feeling so great with the new unit that was put In. We will continue use GEMS due to their fair pricing, great quality of work, and the personal care you can feel from everyone that you work with.
Wow, I am so appreciative of you sharing your experience Brian! We work so hard each and every day to ensure we deliver this experience. Thank you for trusting my team and I with your home and we welcome you to the GSMS Family! -Zak
Love dealing with this company. Their techs are always prompt, efficient and courteous. We've been happy to be their customer since 2010.
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.
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 service again. On time and professional. I highly recommend GSMS.
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
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Amherst, NH -
Atkinson, NH -
Auburn, NH -
Barrington, NH -
Bedford, NH -
Bow, NH -
Candia, NH -
Chester, NH -
Concord, NH -
Deerfield, NH -
Derry NH -
Durham NH -
East Kingston, NH -
Epping, NH -
Epsom, NH -
Exeter, NH -
Goffstown, NH -
Greenland, NH -
Hampstead, NH -
Hampton, NH -
Henniker, NH -
Hillsborough, NH -
Hooksett, NH -
Hopkinton, NH -
Hudson, NH -
Lee, NH -
Litchfield, NH -
Londonderry, NH -
Madbury, NH -
Manchester, NH -
Merrimack, NH -
Nashua, NH -
New Boston, NH -
Newmarket, NH -
Northwood, NH -
Pelham, NH -
Pembroke, NH -
Raymond, NH -
Sandown, NH -
Strafford, NH -
Stratham, NH -
Tilton, NH -
Warner, NH -
Weare, NH -
Windham, NH
