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Manchester, NH

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HVAC & Plumbing Repair, Installation & Maintenance in Manchester, NH

GSMS has been Manchester, NH's trusted provider for air conditioning, heating and plumbingservices since 1987. Our licensed and insured cooling, heating and plumbing technicians deliver top-notch installations, repairs, and maintenance, ensuring your home's comfort and safety year-round.

We specialize in energy-efficient solutions, including heat pumps, mini-splits, and smart thermostats, tailored to meet the unique needs of Manchester residents.

Ready to experience 5 Star Plumbing, Heating and AC services near you?

Contact GSMS online or call 603-424-8258 today for a free estimate.

Gsms Truck At Goldenrod In Manchester

HVAC & Plumbing Service FAQs

What is the most common AC system repair?

One of the most common reasons your AC unit might stop working is a failed capacitor near Manchester. Especially the start capacitor, which is essential for getting your system up and running. Clogged air filters can choke airflow, refrigerant leaks can sabotage cooling efficiency, and drainage problems can cause water damage or system failure.

Why are AC unit repairs so expensive?

HVAC systems are machines that demand specialized tools and parts for proper repairs. These components don’t come cheap, especially when they must be ordered from specific manufacturers or hard-to-find suppliers.

How much does it cost to replace my HVAC system?

If you're planning to install a new HVAC system in the Manchester area, you can expect to invest anywhere from $5,500 to $15,000. Your overall cost will be shaped by important factors like they type of unit you choose, the unit’s cooling capacity, its energy efficiency rating, the condition of your current ductwork, and any upgrades you choose to include.

How much does it cost to replace a water heater?

The cost to replace a water heater typically ranges from $850 to $4,500 near Manchester. Whether you choose a traditional tank or a tankless model, the unit's size, and how complex the installation is will depend how much it cost.

Air Conditioning Repair and Installation Service

  • AC Repair: Our expert technicians provide quick and reliable air conditioning repairs. We handle all types of AC unit issues, and can fix anything from refrigerant leaks to malfunctioning compressors.
  • AC Replacement: If your current cooling unit is outdated or beyond repair, we’ll help you choose the right system for your home, ensuring optimal performance and energy efficiency for your home.

Boiler Installation and Replacement Service in Manchester

If your boiler is on its last leg or you're tired of dealing with constant breakdowns, it’s time for an upgrade. A new, Energy Kinetics boiler doesn’t just keep your Manchester area home warm, it saves you money on energy bills and provides reliable heat when you need it most.

What to Expect During Your Boiler Installation

We know that replacing your boiler might sound like a big job, but we handle everything from start to finish so you don’t have to worry about a thing.

Here’s how it works:

  • Free Consultation & Quote: One of our certified technicians will assess your current heating system, discuss your needs, and provide a transparent quote with no hidden fees.
  • Safe Removal of Your Old Boiler: We disconnect and remove your existing boiler, ensuring all gas and water lines are safely handled. If any upgrades are needed for better efficiency, we’ll let you know upfront.
  • Professional Installation: Our team installs your new boiler, making sure everything is set up correctly, safely, and efficiently. We also test the system to ensure it’s running at peak performance.
  • Cleanup & Final Walkthrough: We respect your home, so we clean up after ourselves and take away your old boiler. Before we leave, we’ll walk you through your new system and answer any questions.

Need a New Boiler? We Make Installation Easy and Hassle-Free

Our professional boiler installation and replacement services make the process simple and stress-free, so you can enjoy a warm, comfortable home without the hassle.

Local Furnace Installation and Repair Service in Manchester

Is your furnace struggling to keep up with the cold? Whether you need a brand-new system or emergency repairs, we’ve got you covered. A properly installed, high-efficiency furnace not only keeps your home warm but also saves you money on energy bills. Our expert team makes the entire process easy, so you can enjoy a cozy, comfortable home without the stress.

Choosing the Right Furnace for Your Home

Not all furnaces are the same, and choosing the right one makes a big difference. We help homeowners find the best fit based on home size, heating needs, and budget.

Here are the main types:

  • Gas Furnaces – The most common and cost-effective option, offering powerful heating and efficiency.
  • Electric Furnaces – A great alternative for homes without gas lines, providing clean and reliable heat.
  • Oil Furnaces – A good option for homes in colder climates that don’t have natural gas access.
  • High-Efficiency Models – Advanced systems that maximize energy savings and performance.

If you’re not sure which system is the type you need, our team will walk you through your options and recommend the ideal choice for your home.

Ductless Mini Split Installation

  • Mini-Split Heat Pumps: Our team installs and services mini-split heat pumps, providing efficient heating and cooling solutions for homes without ductwork.
  • Mitsubishi Mini-Splits: We are experienced in installing and maintaining Mitsubishi mini-splits, ensuring your home benefits from the latest in ductless technology.

Plumbing Service in Manchester

From leaky faucets to full-scale pipe replacements, we handle it all. Our expert plumbers provide fast, reliable service to keep your home's plumbing running smoothly. Whether you need an urgent repair, a fixture upgrade, or a complete repiping, we’re here to help with top-quality workmanship and upfront pricing. No surprises! Just expert service you can trust.

We understand the importance of reliable and efficient plumbing in maintaining a comfortable home. Our skilled plumbers are dedicated to delivering great service because it's in our DNA!

Water Heater Replacement, Repair and Tankless Water Heater Installation

If you're tired of running out of hot water or looking for a more energy-efficient way to heat your home's water, a tankless water heater could be the perfect solution. GSMS offers professional tankless water heater installation, repair, and maintenance services in Manchester. Whether you're upgrading your system or need a quick repair, we're here to help.

Common Issue We Fix

If you notice these things happening with your water heater, give us a call!

  • No Hot Water: Diagnosing and fixing issues that cause a lack of hot water.
  • Leaking Tank: Repairing leaks to prevent water damage and ensure efficient operation.
  • Strange Noises: Addressing unusual sounds from your water heater, which could indicate sediment buildup or other problems.
  • Inconsistent Temperature: Resolving issues that lead to fluctuating water temperatures.

Upgrading to a tankless water heater is a smart investment, but it's important to get the right size and model for your home's needs. Our experts will assess your hot water usage and recommend the best system to keep your household comfortable. We install top brands like Rinnai, ensuring you get reliable performance and maximum energy savings.

Kitchen and Bathroom Plumbing Solutions

  • Faucet and Sink Installation: Installing new faucets and sinks to enhance your kitchen and bathroom.
  • Dishwasher and Garbage Disposal Installation: Ensuring your kitchen appliances are properly connected and functioning efficiently.
  • Toilet Repair and Installation: Fixing leaks, unclogging blockages, and installing new toilets.
  • Shower and Tub Services: Repairing leaks, replacing fixtures, and installing new showers and bathtubs.
  • Pipe Repair and Replacement: Addressing leaks and damaged pipes to prevent water damage and maintain optimal plumbing performance.

Get the Best Local Plumbing, Heating and Air Experts near Manchester, NH

When it comes to maintaining a comfortable and efficient home, GSMS is your trusted local expert. With over three decades of experience, our family-owned business has built a reputation for delivering top-quality HVAC service tailored to the unique needs of homeowners in the area.

Need a quick repair, total replacement, or maintenance for your HVAC or Plumbing system? Call 603-424-8258 today!

Recent Jobs and Reviews in Manchester, NH

Rated 5.0 out of 5 stars based on 53 customer reviews

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

Job Locations and Reviews

Jack D.
Jack D. Checked in
Unit heater not staying on. I tested thermocouple and it was reading low. I replaced it with a new one and tested operation. You're all set thank you!
Manchester, NH 03109
Jack D.
Jack D. Checked in
I found a loose wire in the connector to the inducer motors. I was able to repair it and the furnace is now working. Thank you!
Manchester, NH 03104
Jack D.
Jack D. Checked in
Replace existing failed water heater with new direct replacement unit.
Manchester, NH 03104
Jack D.
Jack D. Checked in
I did not find any issues with the hot water system.
Manchester, NH 03104
Manchester, NH - Replace broken basket strainer. Test for leaks. All set thank you!
Jack D.
Jack D. Checked in
Replace broken basket strainer. Test for leaks. All set thank you!
Manchester, NH 03102
I completed the condensing gas boiler maintenance today. I started off checking all the electrical connections, everything looked good. I pulled the flame sensor out and I cleaned it. I checked all accessories and everything looked great. I pulled the trap out and I cleaned it and primed it. I flushed the condensate pump with cleaner. I cleaned out the boiler magnet and I added in Fernox Protector F1. Lastly, I ran the boiler in low and high fire and performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels. The boiler was running great.
I completed the condensing gas boiler maintenance today. I started off checking all the electrical connections, everything looked good. I pulled the flame sensor out and I cleaned it. I checked all accessories and everything looked great. I pulled the trap out and I cleaned it and primed it. I flushed the condensate pump with cleaner. I cleaned out the boiler magnet and I added in Fernox Protector F1. Lastly, I ran the boiler in low and high fire and performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels. The boiler was running great.
Qwentin G.
Qwentin G. Checked in
I completed the condensing gas boiler maintenance today. I started off checking all the electrical connections, everything looked good. I pulled the flame sensor out and I cleaned it. I checked all accessories and everything looked great. I pulled the trap out and I cleaned it and primed it. I flushed the condensate pump with cleaner. I cleaned out the boiler magnet and I added in Fernox Protector F1. Lastly, I ran the boiler in low and high fire and performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels. The boiler was running great.
Manchester, NH 03102
Jack D.
Jack D. Checked in
Replace thermostatic mixing valve. The previous one was gunked up with minerals. That part only has a one year warranty on it. I did not have that style toilet handle on my truck. We will order a replacement. I ziptied the toilet handle to the bar for now. I replaced the hair wash faucet. The new shower head did not fit to the regulator threads. I have to get an adapter fitting. We will do everything else when we come back to complete the furnace maintenance.
Manchester, NH 03103
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added sheet metal screws to it. Also, the draft hood didn’t have any sheet metal screws in it so I added three. I found that both high vents are leaking water.
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added sheet metal screws to it. Also, the draft hood didn’t have any sheet metal screws in it so I added three. I found that both high vents are leaking water.
Qwentin G.
Qwentin G. Checked in
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added sheet metal screws to it. Also, the draft hood didn’t have any sheet metal screws in it so I added three. I found that both high vents are leaking water.
Manchester, NH 03104
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I found that both high vents have been leaking water.
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I found that both high vents have been leaking water.
Qwentin G.
Qwentin G. Checked in
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I found that both high vents have been leaking water.
Manchester, NH 03104
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added three sheet metal screws to it. I found both high vents have been leaking. I found that the pressure relief valve is leaking.
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added three sheet metal screws to it. I found both high vents have been leaking. I found that the pressure relief valve is leaking.
Qwentin G.
Qwentin G. Checked in
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added three sheet metal screws to it. I found both high vents have been leaking. I found that the pressure relief valve is leaking.
Manchester, NH 03104
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added three sheet metal screws to it. I checked all the boiler accessories and found that one of the high vents is leaking water. I found that the pressure relief valve has been leaking water as well.
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added three sheet metal screws to it. I checked all the boiler accessories and found that one of the high vents is leaking water. I found that the pressure relief valve has been leaking water as well.
Qwentin G.
Qwentin G. Checked in
Completed the gas boiler maintenance today. I started off with checking all the electrical connections and everything looked good. I pulled the burner tubes out and I cleaned them. I vacuumed out the boiler and the boiler tube tray. I cleaned the thermocouple. Checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and the boiler was running great. I noticed that the vent pipe wasn’t screwed onto the collar of the boiler so I added three sheet metal screws to it. I checked all the boiler accessories and found that one of the high vents is leaking water. I found that the pressure relief valve has been leaking water as well.
Manchester, NH 03104
Completed all six gas furnace maintenances. I checked all the wiring connections and the capacitors on all of them and everything looked good. I cleaned the flame sensors on all of them. I replaced the filters on all the units. I vacuumed out the inside of the furnaces. I checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and all the units were running great. On unit four I found that the coupling that connects the inducer to the flue pipe was leaking CO inside of the furnace cabinet. I used high temp silicone and vent tape to make a temporary repair. I tested after and no more CO was present. Unit seven I also found that the coupling that connects the inducer to the flue pipe was leaking CO inside of the furnace cabinet. I repaired it the same way and tested it after. I also noticed that the drain line on the outside of the unit was leaking water
Completed all six gas furnace maintenances. I checked all the wiring connections and the capacitors on all of them and everything looked good. I cleaned the flame sensors on all of them. I replaced the filters on all the units. I vacuumed out the inside of the furnaces. I checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and all the units were running great. On unit four I found that the coupling that connects the inducer to the flue pipe was leaking CO inside of the furnace cabinet. I used high temp silicone and vent tape to make a temporary repair. I tested after and no more CO was present. Unit seven I also found that the coupling that connects the inducer to the flue pipe was leaking CO inside of the furnace cabinet. I repaired it the same way and tested it after. I also noticed that the drain line on the outside of the unit was leaking water
Qwentin G.
Qwentin G. Checked in
Completed all six gas furnace maintenances. I checked all the wiring connections and the capacitors on all of them and everything looked good. I cleaned the flame sensors on all of them. I replaced the filters on all the units. I vacuumed out the inside of the furnaces. I checked incoming and outgoing gas pressures and everything was according to manufacturer specifications. I performed a combustion analyzer test that checks the units CO, CO2 and oxygen levels and all the units were running great. On unit four I found that the coupling that connects the inducer to the flue pipe was leaking CO inside of the furnace cabinet. I used high temp silicone and vent tape to make a temporary repair. I tested after and no more CO was present. Unit seven I also found that the coupling that connects the inducer to the flue pipe was leaking CO inside of the furnace cabinet. I repaired it the same way and tested it after. I also noticed that the drain line on the outside of the unit was leaking water
Manchester, NH 03104
During boiler maintenance we found a failed expansion and corrosion vent pipe. While attempting to replace the expansion tank the cast iron air eliminator cracked. I had to replace it with a new air eliminator. I replaced the entire section of vent pipe. I also replaced the relief valve as it is good practice due to failed expansion tank and old valve. I replaced the air vent on the 90 fitting as well. While I was testing the system at the end of the repairs I accidentally shorted out the control. We returned with a replacement and covered the expense. Thank you
During boiler maintenance we found a failed expansion and corrosion vent pipe. While attempting to replace the expansion tank the cast iron air eliminator cracked. I had to replace it with a new air eliminator. I replaced the entire section of vent pipe. I also replaced the relief valve as it is good practice due to failed expansion tank and old valve. I replaced the air vent on the 90 fitting as well. While I was testing the system at the end of the repairs I accidentally shorted out the control. We returned with a replacement and covered the expense. Thank you
Jack D.
Jack D. Checked in
During boiler maintenance we found a failed expansion and corrosion vent pipe. While attempting to replace the expansion tank the cast iron air eliminator cracked. I had to replace it with a new air eliminator. I replaced the entire section of vent pipe. I also replaced the relief valve as it is good practice due to failed expansion tank and old valve. I replaced the air vent on the 90 fitting as well. While I was testing the system at the end of the repairs I accidentally shorted out the control. We returned with a replacement and covered the expense. Thank you
Manchester, NH 03102
Preventative maintenance completed on boiler. I needed to replace the expansion tank, relief valve, and tridicator gauge. Thank you.
Preventative maintenance completed on boiler. I needed to replace the expansion tank, relief valve, and tridicator gauge. Thank you.
Jack D.
Jack D. Checked in
Preventative maintenance completed on boiler. I needed to replace the expansion tank, relief valve, and tridicator gauge. Thank you.
Manchester, NH 03104
Jack D.
Jack D. Checked in
Replace faulty boiler expansion tank. Replace sticking relief valve. Replace faulty temperature and pressure gauge.
Manchester, NH 03102
Review
Excellent service!
Darlene - Manchester, NH 03109
Review
👍
Guimont - Manchester, NH 03103
Review
Home club member. Always great customer service from scheduling staff to HVAC technicians. Today, received maintenance furnace service from Qwentin Gauvin. Trustworthy, genuine and service oriented technician. Appreciate his efforts.
Manchester residential customer - Manchester, NH 03104
Review
Service
Guimont - Manchester, NH 03103
Review
Excellent Service!
E Z - Manchester, NH 03102
Review
Qwentin serviced our furnace and installed our new Nest unit. He was friendly, attentive and thorough
Barry - Manchester, NH 03109
Review
Only great service from Jack with GSMS. Longtime customer!
Michelle - Manchester, NH 03104
Review
Great service!
Beth - Manchester, NH 03104
Review
He was great highly recommended
Chris - Manchester, NH 03103
Review
Thank you for caring and making sure that I will not have any problems and thank you for fixing others mistakes.
Darlene - Manchester, NH 03109
Review
Excellent everything
Daniel - Manchester, NH 03102
Review
We are very happy with the whole Team from GSMS. We would highly recommend them and we have. They have done a great job over the last year for us, from replacing a 20 year old furnace / AC & installing the new units. Also we have used them for some plumbing issues and regular yearly maintenance. We are pleased with their great workmanship and the overall experience has been awesome. Great prices as well.
Pamela - Manchester, NH 03109
Review
Excellent Service
26 - Manchester, NH 03102
Review
Very professional service, he arrived on time and was courteous and friendly.
Terry - Manchester, NH 03109
Review
Very professional, knowledgeable, and the issues were repaired. Jack went beyond to make certain our system was at its max performance!
Ray & Di - Manchester, NH 03102
Review
Great work, fair prices.
Tom Grasse - Manchester, NH 03104
Response from GSMS Air•Heating•Plumbing:

We thank you for sharing your positive experience. It made our day.

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