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Qwentin G.

Qwentin G.

Service Specialist

Rating

Reviews

Qwentin is a dedicated Service Specialist with 4 years in the HVAC industry and a year at GSMS. His hands-on background, honed through working on dirt bikes, drives his enthusiasm for tackling technical challenges and delivering exceptional service. Outside of work, Qwentin stays active by going to the gym and riding dirt bikes.

Qwentin values the supportive and collaborative environment at GSMS, which he considers the best workplace he’s ever experienced. Known for his light-hearted, fun-loving nature, Qwentin is committed to providing high-quality work and treating each client with the care and respect they deserve.

Name: Qwentin Gauvin

Recent Jobs and Reviews

Rated 5.0 out of 5 stars based on 125 customer reviews

Customers say: The overall sentiment across these reviews is overwhelmingly positive, reflecting high levels of customer satisfaction and appreciation. Customers consistently express enthusiasm about the quality of service they received, with recurring praise for professionalism, expertise, and efficiency. A dominant theme throughout is the technical skill and knowledge demonstrated by the service team, with many reviewers highlighting how thoroughly problems were diagnosed and resolved. The interpersonal qualities of the technicians emerge as another strong positive trend, with customers frequently describing them as friendly, personable, pleasant, and respectful. Communication stands out as a particularly valued aspect, with reviewers appreciating clear explanations, patience in answering questions, and being kept informed throughout the service process. Timeliness and punctuality are consistently mentioned as strengths, alongside respect for customers' property and maintaining clean, orderly work practices. Many customers express strong loyalty and trust in the company, with several indicating they are repeat customers or plan to continue using the service. The tone is enthusiastic and grateful, with multiple reviewers offering strong recommendations and expressing genuine happiness with the results. Overall, these reviews paint a picture of a service provider that excels in both technical competence and customer care, creating consistently positive experiences that foster long-term customer relationships.

At a glance

GSMS Air•Heating•Plumbing has completed 25 jobs in September 2026.

The 15 customer reviews shown here average 5.0 out of 5.

The most recent job was on September 29, 2026.

Recent work covers Bedford, NH, Nashua, NH, Londonderry, NH, Stratham, NH and Amherst, NH.

Job Locations and Reviews

Completed the second plus third floor boiler maintenance. Everything went great. Please see the attached form.
Completed the second plus third floor boiler maintenance. Everything went great. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the second plus third floor boiler maintenance. Everything went great. Please see the attached form.
Nashua, NH 03064
Qwentin G.
Qwentin G. Checked in
Replaced the air vent and the inducer motor capacitor for apartment 1 boiler. Replaced the air vent, expansion tank and the inducer motor capacitor for apartment 2 and 3 boiler.
Nashua, NH 03064
Completed the oil boiler maintenance today. Everything went great. Please see the attached form.
Completed the oil boiler maintenance today. Everything went great. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the oil boiler maintenance today. Everything went great. Please see the attached form.
Merrimack, NH 03054
Completed the gas furnace maintenance today. Everything went great! Please see the attached form.
Completed the gas furnace maintenance today. Everything went great! Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the gas furnace maintenance today. Everything went great! Please see the attached form.
Exeter, NH 03833
Review
Excellent!
Jeffrey - Stratham, NH 03885
Completed the oil furnace maintenance today. Everything went great. Please see the attached form.
Completed the oil furnace maintenance today. Everything went great. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the oil furnace maintenance today. Everything went great. Please see the attached form.
Stratham, NH 03885
Review
Qwentin seemed knowledgeable, was very personable, efficient
Nancy - Stratham, NH 03885
Qwentin G.
Qwentin G. Checked in
Completed the mini split maintenances today. Everything went great. Please see the attached form.
Stratham, NH 03885
Review
Always wonderful with Quentin
Bonnie - Bedford, NH 03110
Qwentin G.
Qwentin G. Checked in
Needed to connect W wire.
Londonderry, NH 03053
Review
Overall it was a great experience. From getting the appointment to completion of maintenance, all was smooth.
Ali - Bedford, NH 03110
Completed both furnace maintenances today. Everything went great! Please see the attached form.
Completed both furnace maintenances today. Everything went great! Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed both furnace maintenances today. Everything went great! Please see the attached form.
Bedford, NH 03110
Completed both gas furnace maintenances. I replaced the filter on the furnace downstairs and replaced both humidifier pads. Everything went great today! Please see the attached form.
Completed both gas furnace maintenances. I replaced the filter on the furnace downstairs and replaced both humidifier pads. Everything went great today! Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed both gas furnace maintenances. I replaced the filter on the furnace downstairs and replaced both humidifier pads. Everything went great today! Please see the attached form.
Bedford, NH 03110
Review
Great team of technicians keeping my system running both summer and winter
John - Bedford, NH 03110
Completed the furnace maintenance today. Everything went great. The only thing that I noticed was the collector box is starting to leak and the flue tee is really crusty. I'll send over an estimate for those repairs. Please see the attached form.
Completed the furnace maintenance today. Everything went great. The only thing that I noticed was the collector box is starting to leak and the flue tee is really crusty. I'll send over an estimate for those repairs. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the furnace maintenance today. Everything went great. The only thing that I noticed was the collector box is starting to leak and the flue tee is really crusty. I'll send over an estimate for those repairs. Please see the attached form.
Bedford, NH 03110
Checked incoming and outgoing gas pressures and everything looked good. Performed a combustion analyzer test and all my readings were good as well. I noticed that the low pressure switch is faulty and was never hooked up into the circuit from when the unit was installed. We will send over an estimate to replace the low pressure switch.
Checked incoming and outgoing gas pressures and everything looked good. Performed a combustion analyzer test and all my readings were good as well. I noticed that the low pressure switch is faulty and was never hooked up into the circuit from when the unit was installed. We will send over an estimate to replace the low pressure switch.
Qwentin G.
Qwentin G. Checked in
Checked incoming and outgoing gas pressures and everything looked good. Performed a combustion analyzer test and all my readings were good as well. I noticed that the low pressure switch is faulty and was never hooked up into the circuit from when the unit was installed. We will send over an estimate to replace the low pressure switch.
Auburn, NH 03032
Review
Excellent service and very knowledgeable technician.
Michael - Amherst, NH 03031
Replaced the heat exchanger. I checked incoming and outgoing gas pressure and that was according to manufacturing specifications. I performed a combustion analyzer test and the unit was running great. Lastly I used my CO detector and went around all the sealed spots and there was no CO detected.
Replaced the heat exchanger. I checked incoming and outgoing gas pressure and that was according to manufacturing specifications. I performed a combustion analyzer test and the unit was running great. Lastly I used my CO detector and went around all the sealed spots and there was no CO detected.
Qwentin G.
Qwentin G. Checked in
Replaced the heat exchanger. I checked incoming and outgoing gas pressure and that was according to manufacturing specifications. I performed a combustion analyzer test and the unit was running great. Lastly I used my CO detector and went around all the sealed spots and there was no CO detected.
Londonderry, NH 03053
Review
Great service and communication!
Steven - Hollis, NH 03049
Completed the oil boiler maintenance today. Everything went great. Please see the attached form. I also replaced the air vent that had failed.
Completed the oil boiler maintenance today. Everything went great. Please see the attached form. I also replaced the air vent that had failed.
Qwentin G.
Qwentin G. Checked in
Completed the oil boiler maintenance today. Everything went great. Please see the attached form. I also replaced the air vent that had failed.
Amherst, NH 03031
Completed the oil boiler maintenance. Everything went great. Please see the attached form.
Completed the oil boiler maintenance. Everything went great. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the oil boiler maintenance. Everything went great. Please see the attached form.
Hollis, NH 03049
Qwentin G.
Qwentin G. Checked in
Added in a leak stop valve on the client's water heater. Tested all operations and checked for leaks and everything was working great!
Newmarket, NH 03857
Completed the oil boiler maintenance. Everything went great. Please see the attached form.
Completed the oil boiler maintenance. Everything went great. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the oil boiler maintenance. Everything went great. Please see the attached form.
Newmarket, NH 03857
Completed the furnace maintenance. Found that the incoming gas pressure was 19.31 inches water column which is way over the max pressure that the gas valve can handle. I red tagged the furnace since it has an open burner box. I adjusted the outside regulator to 11 inchs water column. I informed the client and he contacted the propane company and they are going to come out this week to take a look at the regulator, the gas valve on the furnace, water heater and gas fireplace.
Completed the furnace maintenance. Found that the incoming gas pressure was 19.31 inches water column which is way over the max pressure that the gas valve can handle. I red tagged the furnace since it has an open burner box. I adjusted the outside regulator to 11 inchs water column. I informed the client and he contacted the propane company and they are going to come out this week to take a look at the regulator, the gas valve on the furnace, water heater and gas fireplace.
Qwentin G.
Qwentin G. Checked in
Completed the furnace maintenance. Found that the incoming gas pressure was 19.31 inches water column which is way over the max pressure that the gas valve can handle. I red tagged the furnace since it has an open burner box. I adjusted the outside regulator to 11 inchs water column. I informed the client and he contacted the propane company and they are going to come out this week to take a look at the regulator, the gas valve on the furnace, water heater and gas fireplace.
Auburn, NH 03032
Completed the furnace maintenances and the boiler. Everything went great. Please see the attached forms. We replaced the drain line and in the air gap fitting there is still a small drip. It's improved but keep a eye on it and we will be in touch with a better solution. We also changed the rinse cycle to 12:00 during the day.
Completed the furnace maintenances and the boiler. Everything went great. Please see the attached forms. We replaced the drain line and in the air gap fitting there is still a small drip. It's improved but keep a eye on it and we will be in touch with a better solution. We also changed the rinse cycle to 12:00 during the day.
Qwentin G.
Qwentin G. Checked in
Completed the furnace maintenances and the boiler. Everything went great. Please see the attached forms. We replaced the drain line and in the air gap fitting there is still a small drip. It's improved but keep a eye on it and we will be in touch with a better solution. We also changed the rinse cycle to 12:00 during the day.
Bedford, NH 03110
Completed the furnace maintenance today. Everything went great. Please see the attached form.
Completed the furnace maintenance today. Everything went great. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the furnace maintenance today. Everything went great. Please see the attached form.
Nashua, NH 03062
Completed the furnace maintenance at the Grandma's house. Everything went great. Please see the attached form.
Completed the furnace maintenance at the Grandma's house. Everything went great. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Completed the furnace maintenance at the Grandma's house. Everything went great. Please see the attached form.
Bedford, NH 03110
Nashua, NH - Replaced the inducer motor. Tested all operation after. Used my combustion analyzer to check for carbon monoxide and none was present. Everything is running great.
Qwentin G.
Qwentin G. Checked in
Replaced the inducer motor. Tested all operation after. Used my combustion analyzer to check for carbon monoxide and none was present. Everything is running great.
Nashua, NH 03063
Qwentin G.
Qwentin G. Checked in
Replaced the failing expansion tank. Set the tank and boiler to 15 PSI. Tested operation and both returns were coming back hot.
New Boston, NH 03070
Qwentin G.
Qwentin G. Checked in
Adjusted the mixing valve to around 120 degrees and showed Ralph how to adjust it.
Nashua, NH 03064
Repiped the expansion tank. Completed the furnace maintenance today. I found out the collector box gasket is leaking and the burner tubes are very rusty. I will send over an estimate to replace both parts. Other than that the system is running good. Please see the attached form.
Repiped the expansion tank. Completed the furnace maintenance today. I found out the collector box gasket is leaking and the burner tubes are very rusty. I will send over an estimate to replace both parts. Other than that the system is running good. Please see the attached form.
Qwentin G.
Qwentin G. Checked in
Repiped the expansion tank. Completed the furnace maintenance today. I found out the collector box gasket is leaking and the burner tubes are very rusty. I will send over an estimate to replace both parts. Other than that the system is running good. Please see the attached form.
Litchfield, NH 03052
Completed the furnace maintenance today. Everything went great. Please see the attached forms.
Completed the furnace maintenance today. Everything went great. Please see the attached forms.
Qwentin G.
Qwentin G. Checked in
Completed the furnace maintenance today. Everything went great. Please see the attached forms.
Londonderry, NH 03053
Review
Excellent service and technical work
Phil - Windham, NH 03087
Review
Qwentin was knowledgeable, friendly, & got the job done quickly.
Kelly - Londonderry, NH 03053
Review
Excellent and professional
Shawn - Gilmanton, NH 03237
Review
Fast resolution
Eric - Exeter, NH 03833
Review
Excellent service, neat and professional
Shawn - Gilmanton, NH 03837
Review
As usual everyone from your company is great. Always the best service.
Scott - Merrimack, NH 03054
Review
Professional, knowledgeable and friendly.. Qwentin from GSMS did a great job with our annual maintenance.. Always uses show coverings, cleans up when he’s done- and tolerates our 100 pound Black Lab who insists on helping!
Mark - Bedford, NH 03110
Review
He was extremely polite and knowledgeable. Outstanding service.
Ryan - Lee, NH 03861
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