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Londonderry, NH

Your Trusted Heating, AC & Plumbing Experts in Londonderry, NH

Since 1987, GSMS has been proud to offer top-notch HVAC services to residents of Londonderry, NH. With over three decades of experience, our family-owned business has built a reputation for excellence, reliability, and outstanding customer service. We provide a comprehensive range of HVAC services, including air conditioning repair, replacement, and maintenance, as well as heating services for furnaces and boilers. Our expert technicians are also skilled in installing and maintaining ductless mini-split systems, ensuring that your home stays comfortable year-round. At GSMS, we use only the highest quality products from leading manufacturers, guaranteeing efficient and long-lasting solutions for your HVAC needs. Whether you need a quick repair, a complete system installation, or regular maintenance, our team is dedicated to providing personalized service tailored to your specific requirements. Don’t let HVAC issues disrupt your comfort—call GSMS today at 603-424-8258 to schedule your HVAC service in Londonderry, NH, and experience the difference of working with trusted local professionals.

In addition to our heating and air conditioning services, we offer top-quality plumbing services to the residents of Londonderry, NH. With over three decades of experience, our family-owned business has established a reputation for trust, reliability, and exceptional customer care. Our comprehensive plumbing services include water heater repair, replacement, and maintenance for both tank and tankless models, ensuring your home has a consistent supply of hot water. We also specialize in kitchen plumbing, from faucet and sink installations to dishwasher and water line services. In the bathroom, our expert plumbers handle everything from toilet and shower repairs to vanity plumbing and pipe replacement. At GSMS, we use only the highest quality materials and the latest techniques to provide efficient and long-lasting solutions for your plumbing needs. Whether you require a quick repair, a complete installation, or regular maintenance, our team is committed to delivering personalized service tailored to your home’s unique requirements. Don’t let plumbing issues disrupt your daily routine—call GSMS today at 603-424-8258 to schedule your plumbing service in Londonderry, NH, and experience the peace of mind that comes with working with trusted local professionals.

Recent Jobs and Reviews in Londonderry, NH

Rated 5.0 out of 5 stars based on 2 customer reviews

Job Locations and Reviews

Mark D.
Mark D. Checked in
Removed burners to clean them
Londonderry, NH 03053
Jack D.
Jack D. Checked in
I found the shop ventilation exhaust blower motor to be seized. I reached out to our motor supplier for a motor quote. We will also have to rent a lift to safely access the fan.
Londonderry, NH 03053
Jack D.
Jack D. Checked in
The maintenance on your Goodman propane furnace went great. There are no recommended repairs at this time. Thank you.
Londonderry, NH 03053
Adam P.
Adam P. Checked in
Installed gas piping to the generator
Londonderry, NH 03053
Review
Excellent service
Alison - Londonderry, NH 03053
Review
Excellent Service
Frank - Londonderry, NH 03053
Jack D.
Jack D. Checked in
I found that the outdoor unit needs both control boards and a thermistor replaced.
Londonderry, NH 03053
Jack D.
Jack D. Checked in
The GSMS HomeClub heating visit went great today. We completed a maintenance on your Concord warm air propane furnace. We replaced the Trion AirBear air filter as well as the humidifier media for your AprilAire humidifier. The old media was disgusting and there was organic growth inside of the humidifier. We disassembled the humidifier and thoroughly cleaned it. Your system is ready for another dependable and safe season of heating. We also installed the Smart AC home kit.
Londonderry, NH 03053
Jack D.
Jack D. Checked in
Replace s30 with s40. Thermostat covered under warranty. Labor warranty expired.
Londonderry, NH 03053
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