
HVAC and Plumbing Service in Hooksett
When your home needs dependable heating, cooling, or plumber services in Hooksett, NH, you deserve a team that delivers expert solutions with energy efficiency in mind. Whether you're looking for boiler installation, a ductless mini split system, or furnace installation, our skilled plumbing, heating and AC technicians ensure your home stays comfortable year-round.
Boiler Installation & Replacement
If your current boiler isn’t keeping up with New England’s harsh winters, it may be time for a boiler replacement. We specialize in high-efficiency boiler install services, helping you choose the best unit for your home’s heating needs. Whether you need a traditional boiler setup, or an energy efficient installation, our team ensures a seamless process from start to finish.
Furnace Installation & Heating System Services
A properly installed furnace is essential for a warm and energy-efficient home. We offer local furnace repair and installation services tailored to your home’s layout and heating needs. From choosing the right system to professional setup, we ensure your furnace replacement is done right the first time.
Heat Pump Solutions
Heat pumps offer year-round comfort with energy-efficient heating and cooling. If you’re considering switching to a heat pump, we can help you select, install, and maintain the perfect system for your home.
AC Repair and Installation Service
If your cooling system isn’t performing, our air conditioning repair service team is ready to restore comfort to your home. Upgrading your HVAC system can qualify you for HVAC energy rebates, reducing upfront costs while improving energy efficiency. We help homeowners navigate available incentives to maximize their savings.
Don't let heating and cooling issues disrupt your comfort—call GSMS today at 603-424-8258 to schedule your HVAC service in Hooksett and experience the difference of working with trusted local professionals.
Ductless Mini Split Installation & Costs
A ductless mini split is a great solution for homes without traditional ductwork. These systems provide zoned cooling and heating, offering comfort and efficiency. If you’re wondering about mini split system cost, our team can guide you through options that fit your budget.
Mitsubishi Diamond Contractor Services
As a Mitsubishi Diamond Contractor, we install and service high-performance ductless heating and cooling systems. These energy-efficient units provide exceptional climate control while reducing utility bills.
Local Plumbers Serving Hooksett
Our expert 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.
Tankless Water Heater Installation
If you're tired of running out of hot water, a tankless water heater installer can provide a more efficient solution. Tankless water heaters heat water on demand, saving energy and providing endless hot water. Our team specializes in Rinnai tankless water heater installation, ensuring top-tier efficiency and performance.
Don't let plumbing issues disrupt your daily routine—call GSMS today at 603-424-8258 to schedule your plumbing service in Hooksett, NH, and experience the peace of mind that comes with working with trusted local professionals.
Get the Best Plumbing, Heating and Cooling Service in Hooksett
Since 1987, GSMS has been proud to offer top-notch HVAC and plumbing services to residents of Hooksett, NH. With over three decades of experience, our family-owned business has built a reputation for excellence, reliability, and outstanding customer service.
We use only the highest quality products from leading manufacturers, guaranteeing efficient and long-lasting solutions for your home comfort 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.
Call 603-424-8258 today to schedule your HVAC and plumber service in Hooksett or contact us online with any questions. We're available 24 hours a day.
Recent Jobs and Reviews in Hooksett, NH
Customers say: The recent reviews exhibit a predominantly positive sentiment, with recurring themes of satisfaction, professionalism, and expertise. Customers express gratitude, recommend the company, and acknowledge the quality of the work performed. Positive reviews frequently mention friendly and knowledgeable technicians, timely responses, and efficient service. Negative reviews are minimal and do not represent a clear, recurring trend. Overall, the reviews suggest a positive experience with the company, with many customers expressing satisfaction with their HVAC and plumbing needs.
Our Local Reviews by City
- Amherst, NH (10)
- Atkinson, NH (2)
- Auburn, NH (1)
- Barrington, NH (22)
- Bedford, NH (28)
- Candia, NH (2)
- Chester, NH (2)
- Concord, NH (7)
- Deerfield, NH (1)
- Derry, NH (3)
- Dover, NH (1)
- Durham, NH (2)
- Epping, NH (1)
- Gilford, NH (1)
- Gilmanton, NH (1)
- Goffstown, NH (8)
- Greenland, NH (2)
- Hampstead, NH (2)
- Henniker, NH (3)
- Hillsborough, NH (1)
- Hollis, NH (17)
- Hooksett, NH (16)
- Hudson, NH (7)
- Lee, NH (1)
- Litchfield, NH (3)
- Londonderry, NH (14)
- Manchester, NH (60)
- Merrimack, NH (52)
- Milford, NH (8)
- Moultonborough, NH (1)
- Nashua, NH (58)
- New Boston, NH (4)
- Newbury, NH (1)
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- Northfield, NH (1)
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- Sandown, NH (2)
- Strafford, NH (1)
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- York, ME (1)
Job Locations and Reviews
Replaced the failed indirect water tank. Checked for leaks and there was none. Replaced the domestic water expansion tank. Completed the maintenance on the boiler. I started off with checking all the wiring connections and everything looked good. Next I pulled the flame sensor and cleaned it. I vacuumed out the burners and the burner box. I checked incoming and outgoing gas pressure and those were accordance to manufacturer specifications. I inspected all the boiler accessories and the only thing that I found was that the high vent was leaking water. Lastly I ran the unit and performed a combustion analyzer test. This checks the unit CO, CO2 and oxygen levels. The boiler was running good. I bled the air from the hot and cold water lines before I left.
Found a huge crack in the bottom of the indirect water tank. The supply valve is shut. I also found that the domestic water expansion tank has failed. The water tank is from 1998. I will send over an estimate to replace the hot water tank and the expansion tank. I would also recommend a maintenance to be done on the boiler if it hasn't been done recently.
Adam & Quinn just left after finishing the installation of my new Lennox Air Conditioning unit. As always, they are very personable and professional. Adam explains everything to me before he leaves and I am very comfortable with my new system. I would not hesitate to recommend GSMS and have done so in the past.
We will replace the original system with a new high-efficiency Lennox system, upgrading from the existing 80% efficient furnace to a 90+% efficient model. The existing furnace vent will be capped off, and a new vent will be installed to exit through the side wall of the garage. This will be white PVC, which can be painted to match the exterior of the home. We can provide a photo of the proposed vent location for condo association approval if needed. The new system will be installed in the same location, with any necessary modifications to ensure a proper fit. Outside, a new condensing unit will be installed. The existing lineset will be flushed and re-used due to the limited accessibility of the installation path. A final site visit will be needed to confirm the most appropriate location for the outdoor unit. A new Wi-Fi thermostat will be installed, offering user-friendly control at home and the ability to monitor and adjust your system remotely while traveling.
Completed the plumbing maintenance today. I started off with flushing the hot water tank. I flushed it a few times because it was pretty dirty inside. The client had the temperature and pressure relief valve and the pressure reducing valve for the house replaced 3 months ago and the relief valve is still leaking water out of it. The expansion tank is starting to fail so I will send over an estimate for that. I pulled the anode rod and it was almost completely disintegrated so I will send over an estimate to replace that as well. I checked all the fixtures and drains in the house and everything looked great!
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!
Replaced the deteriorating anode rod. Bled all the air out of the lines. Tested and made sure there was no leaks, everything went great.
Completed the plumbing maintenance and inspection today. I started off with draining down the water heater. All the water heater accessories looked good other than the anode rod is almost gone. I'll send over an estimate if you would like to replace that. I checked all the drains and fixtures and everything looked good.
Replace filters on reverse O system
Repair leaking tub. It appears the seal of the drain has rotted out and needs to be repaired. The first attempt will be to apply new sealant and re-tighten the drain flange. This estimate includes this service. If this fails, the next attempt would be to replace the drain and that would be an additional task. Repair shower hot water issue. Based on our diagnosis, we recommend to replace in the two showers noted, the cartridge. A new cartridge will allow for correct temperature control to bring hot water temperatures back. Repair faucet aerator. We will install a new Kohler aerator in the sink as the old one appears to be stripped out on the threads. - No charge for this since it's only a $5 part.
Very nice and personable person. Explained everything to me in a way I could understand
Completed the water heater maintenance today. I drained down the water heater. Next I pulled out the annod rod and I wiped it down with a rag. The anode rod was in very good condition. I adjusted the clients mixing valve to 120°F. I completed the plumbing inspection and I found that the first floor shower drain was leaking really badly. I also found that the first floor and second floor shower was coming out at 98°F. We will have to replace the shower cartridges. The aerator on the first floor bathroom got plugged up. After cleaning it I went to put it back in and the threads were stripped on it, so we will have to replace that as well. Other than that all the water lines, drain lines and fixtures looked great.
The water pipes that go to the shower valve pass through a floor ontop of a concrete slab. The joist bays are in-fact insulated. I would reccomend putting heat tape on the pipes. I suggest contacting your property management company first. If they will not do it please give us a call. Thank you!
Installed toilet flange and replaced mixing valve on hot water heater
Very happy with the service. Technician was great!!!!
I completed the gas furnace maintenance today. I started off with replacing the air filter that the client supplied. I pulled and cleaned the flame sensor. I checked all the wiring connections and the capacitor and everything was good. I noticed that the inducer motor had a big crack in it, which can be very dangerous so I informed the client about it. I ended up replacing the inducer with a new OEM one. When installing the new inducer, I noticed that most of the vent pipe didn’t have any sheet metal screws in it so I added some. I checked incoming and outgoing gas pressures and those were in spec. I performed a combustion analyzer test that checks for CO, CO2 and oxygen levels and it was running great. The client was looking into getting a smart thermostat so I told her about the ecobee’s and sent over an estimate for an ecobee pro. The client also mentioned that her pipes in the bathroom tend to freeze in the winter time so she would like us to come back out to figure out a solution
Completed the gas boiler maintenance today. Cleaned the burner tubes off. Cleaned the flame sensor. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. Ran the unit and performed a combustion analyzer test to check for CO, CO2 and oxygen levels and everything was running great.
Completed maintenance on your gas furnace and replaced the air filter. Welcome to Home Club! We will reach out to you for your next visit to take care of your plumbing and water heater maintenance.
Completed the gas furnace maintenance. Started off with checking all the wiring connections and everything looked good. I cleaned the flame sensor. I flushed the trap and condensate pump with cleaner. I replaced the air filter with a 16 x 25 x 5 air bear filter. I vacuumed out the inside of the unit and the filter box. I checked incoming and outgoing gas pressures and everything was within manufacturer specifications. Lastly, I ran the unit and I checked the CO, CO2 and oxygen levels. Everything was within manufacturer specifications.
GSMS is my go to for all my air, heating and plumbing! Great service, great price and great people. Qwentin Gauvin has done the last three services at my home and he is always happy, professional and does a fantastic job!
Completed the gas boiler maintenance today. I checked all the wiring connections and everything looked good. I pulled out the burners and cleaned them and the burner box. All the boiler accessories looked new and there was no leaks anywhere. I ran the unit and I checked incoming and outgoing gas pressures and those were within manufacturer specifications.
Performed a maintenance on ideal boiler. Cleaned out the condensate pump and trap. Cleaned the flame sensor and spark igniter. Checked incoming gas pressure and was inspec. Lastly ran the unit on low and high fire and was within manufacture specifications. We noticed the water heater’s pressure and temperature gauge was leaking so I sent the client over an estimate to replace.
Once again, GSMS hit it out of the park. Such great service, fast, efficient. Qwentin was great, as always. Knows his stuff, polite, great customer service. GSMS is my go to!
I started off by cleaning the two indoor coils with coil cleaner. I washed the air filters as well. I noticed that the condensate pump for the unit in the basement was really nasty inside so I cleaned the screen and the reservoir. Outside, I cleaned the outdoor units coil with water. I washed the outside of the unit with soap and water. I checked all the electrical connections and everything looked great!
Oil furnace maintenance went great. We replaced the humidifer pad.
Performed a leak search on the AC system. I found that the indoor coil has multiple leaks. Outside it was hard to tell if the coil itself had leaks. I ran the system to check the charge and the charge was perfect.
First of all I would like to thank Mark for taking care of this plumbing issue. My 2nd floor toilet was leaking down to the ceiling on the first floor. He arrived on time, diagnosed the problem and fixed it in a timely manner for a fair price. I would highly recommend GSMS for their professionalism and excellent service.
Removed toilet and installed new flange spacer and wax gasket
Jack was very helpful and informative.
Frozen evap coil. We will come back. Leaving fan on.
Incorrect termination screen. Removed. Client will add wire screen.
*************FURNACE & GAS PIPING************* Replacement of existing gas furnace to serve the home with energy-efficient heating. Existing A/C system (10 years old) will remain in place. Indoor coil will be supported as we remove the old furnace and install the new furnace. Adapting ductwork will be installed as needed. Return base and return drop will be re-worked to accommodate the installation of our new 5" thick air filtration system. A neutralizing condensate pump will be installed to meet code for drainage. New venting will be installed, following the same path as existing. Gas lines currently enter the home as CSST with a manifold approach, not to our standards for safety or professionalism. We will remove all CSST gas piping and install solid black iron piping to feed the gas furnace, new water heater, and potential gas generator. Incoming gas piping will be sized properly to allow for future expansion. The other two feeds for a former gas grill and a gas fireplace will b
GSMS always goes above and beyond. I have a broken elbow and Mark even helped carrying my vacuum cleaner up stairs for me so I could vacuum whilst he was here!
Check plumbing everything was fine
Qwentin did a great job! He was very thorough in cleaning my AC unit (which hadn’t been done in years) and did it with a smile on his face! Very personable as well, I enjoyed talking to him and he explained everything that he was doing. Getting to my AC unit was not easy but he loved the challenge. 🙂
From my first meeting with Zak to the install with Adam, everything went exceptionally well! Very professional, great communication, and a competitive price. I highly recommend GSMS if you’re looking for a ductless mini-split installation or any other heating or plumbing needs for that matter. Thanks guys for the great job!
Thank you so much for this 5-star review. We really appreciate you being a customer and helping to share the word about us. We’re here for you anytime.
I called GSMS for a second opinion and overall inspection of my system and I am so glad I did! Jack went over everything with me and eased my mind about the overall condition of my furnace And what I should/should not have to do now. I will definitely be a lifelong customer and will be recommending Them to everyone I know!
We are so grateful to have you join our GSMS family, Deb! Our team is trained based on our values of trust and craftsmanship; we'll never sell you something you do not need. Thank you for your trust!
I am a huge fan of GSMS. All the team are so helpful and kind. Jack did an amazing job and I’m very grateful!
We are incredibly grateful that you took the time out to leave us a 5-Star review.
Prompt. Professional. Caring.
My mini split needed to be recharged last month during the long heat wave we had. During that service call, they injected something To check for leaks and came back yesterday to see results. They found a small leak and promptly sent my invoice and a quote to repair. No hassles, no waiting.
Thank you for your review, Cheryl! We pride ourselves on training our team to take care of you and your home. Qwentin does a superb job of living up to our GSMS values!
GSMS had been nothing but exceptional. They installed my mini splits 2 years ago and have continued to provide exceptional service. Qwentin was polite, professional and efficient and did an excellent job. GSMS is my go to!
We’re delighted to hear about your recent experience with us and we’re so pleased that you recommend our services. Thank you for taking the time to share your experience and we look forward to welcoming you back soon!
