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Manchester, NH – HVAC & Plumbing Service

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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.

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 best, our team will walk you through your options and recommend the ideal choice for your home.

Air Conditioning Repair and Installation Service

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  • AC Replacement: If your current air conditioning unit is outdated or beyond repair, we’ll help you choose the best system for your home, ensuring optimal performance and energy efficiency.

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.

Ductwork Installation and Cleaning Service

  • Duct Cleaning: Improve your indoor air quality and HVAC system efficiency. We use advanced Roto Brush technology to remove dust, allergens, and other contaminants from your ductwork.
  • Duct Installation: Properly installed ductwork is essential for efficient heating and cooling. Our expert technicians design and install custom ductwork systems to optimize airflow and enhance comfort.

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—it's in our DNA!

Water Heater 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.

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.

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 32 customer reviews

Customers say: The provided content describes the overall sentiment of the reviews as positive. The reviewers consistently express satisfaction with the services provided by Granite State Mechanical Services (GSMS). They mention factors such as responsiveness, dependability, fair pricing, thoroughness, cleanliness, use of technology, and the quality of the work. Positive reviews highlight the friendliness, expertise, efficiency, and reliability of the technicians, as well as their integrity, honesty, and performance. Customers appreciate the prompt and effective resolution of issues, the professionalism, and the trust they have in the GSMS team. The positive reviews also mention the range of services offered, including plumbing, HVAC, and air quality testing, as well as the positive experiences with scheduling, communication, and the overall customer service. Overall, the sentiment expressed in the reviews is overwhelmingly positive, with customers expressing high levels of satisfaction and recommending GSMS to others.

Our Local Reviews by City

Job Locations and Reviews

Jack D.
Jack D. Checked in
Hookup gas stove. New flexible connector. Check for leaks with electronic detector and bubble spray. Fabricated and installed anti-tip brackets for the oven. Pull and reset toilet that was leaking around base.
Manchester, NH 03102
Qwentin G.
Qwentin G. Checked in
I found that the first and second floor systems both have leaks. I also found that the Bosch heat pump had a cover over the top of it so I removed it. I talked to the owner about everything that I found and he would like us to come back in mid May to recharge the first and maybe second floor system. He also wanted an estimate to replace the whole second floor system. Also, when we come back in May, he wanted the first maintenance done on the Bosch heat pump unit.
Manchester, NH 03104
Mark D.
Mark D. Checked in
New waste&overflow,tub&shower valve and finish work
Manchester, NH 03104
Qwentin G.
Qwentin G. Checked in
.
Manchester, NH 03104
Qwentin G.
Qwentin G. Checked in
Upon arrival, there was water on the floor next to the furnace and the condensate pump was constantly running. I figured out that the pump is good and the condensate tubing is plugged the whole entire way. I had to run a new line and dump it outside of the house. I couldn’t access the old drain that the line went into. It was buried in the wall. After installing the new vinyl tubing and PVC I tested operation. I cleaned the beads in the condensate pump and ran cleaner through the pump and everything worked perfect. The client was interested about the Home Club so I gave her our brochure and said the office would reach out with some more information on it. I recommended that the condensate pump be flushed with cleaner at least twice a year because there is a furnace, air conditioner, water heater and dehumidifier running into the pump which causes a lot of growth buildup in the lines.
Manchester, NH 03104
Mark D.
Mark D. Checked in
Adjusted hot water temp
Manchester, NH 03104
Jack D.
Jack D. Checked in
FA-2: Complete maintenance completed. I reccomend treating the evaporative sump because of algae growth. The system is designed for drain downs but it doesn't drain completely down due to drain location. The supply air fan motor needs a new bearing. It is the inside bearing that needs to be replaced so I reccomend replacing both since both bearings will be removed from the shaft. The SAF wheel is filthy and should be deep cleaned when it is disassembled. FA-5: Complete maintenance finished. The Facilities manager mentioned that the unit is not recognized on the BMS.
Manchester, NH 03104
Review
Mark Downing completed a routine plumbing/hot water tank service today. He was kind enough to change out the water filter from the whole house filtration system. I appreciate his consideration. GSMS has always delivered consistently thoughtful service from both plumbing and HVAC services technicians.
Satisfied customer - Manchester, NH 03104
Mark D.
Mark D. Checked in
Plumbing vist undermount kitchen sink neede hanger reinstalled.Told customer they could try expoy from home depot
Manchester, NH 03104
Mark D.
Mark D. Checked in
Hot water pm home club
Manchester, NH 03104
Qwentin G.
Qwentin G. Checked in
I called Rinnai tech-support when I got to the clients house. We ran through a couple tests while we had the hot water on and we were not able to recreate the problem it was having. We did find there to be a stored error code, code 10, which possibly indicates that the burners are dirty. I talked to the client and we are going to go through with cleaning the burners out.
Manchester, NH 03104
Jack D.
Jack D. Checked in
There is an issue related to the controls with humidity in FA-2. I looked over the trends and took tests on the unit and mechanically everything looks to be working as it is supposed to be. I reccomend calling ECNH to look at the issue as it seems like in the trencds the humidity changes are aggressive when there is an issue.
Manchester, NH 03104
Jack D.
Jack D. Checked in
FA7 chilled water coil burst during winter freezeup. I repaired a total of 37 leaks on the coil. Approximately 25 were major bursts and the remaing were unnoticeable to the eye. It passed a pressure test. I filled the coil back up with water, purged the air with the new vent. I then shut the isolation valves to keep the coil under water pressure. We will be back on site in two days to examine the coil and ensure there are no more leaks. We will then reassemble the air handler and get it turned back online.
Manchester, NH 03104
Mark D.
Mark D. Checked in
Reset toilet and replaced fill gasket
Manchester, NH 03104
Qwentin G.
Qwentin G. Checked in
Gas valve was left off by accident.
Manchester, NH 03104
Qwentin G.
Qwentin G. Checked in
I found the furnaces high limit safety switch to be broken internally causing it to sometimes work and others not. I also noticed that the air filter was very dirty causing there to be a high temp rise. I replaced the 20x25x5 air filter and replaced the high limit switch. I cycled the furnace multiple times and it was operating as it should. I started off with a 70° temp rise and after replacing the filter it is around 55°. I noticed also that the flame had a lot of yellow in it so I checked the manifold gas pressure and it was low. I adjusted the gas valve to manufacture specifications.
Manchester, NH 03104
Review
Jack is the best. He goes out of his way to make sure we are taken care of and have what we need. He’s great
Currier - Manchester, NH 03104
Response from GSMS Air•Heating•Plumbing:

Thank you for taking the time to leave such a positive review! We're glad to hear you had a great experience with Jack.

Review
Granite State Mechanical Services is the only plumber you will ever need! Friendly, knowledgeable, trustworthy and reliable! They do annual maintenance but also remodels. I first met Mark in 2007, when he worked on my kitchen remodel and added air conditioning to my home. We were so happy with the work, we started using GSMS for our annual service. Since then the business has grown to include his sons. Any plumbing issue I have I get immediate service. You can’t go wrong with GSMS!
Colleen - Manchester, NH 03104
Response from GSMS Air•Heating•Plumbing:

We're thrilled to hear that you enjoyed your experience with us. Thanks for the kind words!

Review
Excellent & Friendly Service
Barry - Manchester, NH 03109
Response from GSMS Air•Heating•Plumbing:

Thanks for sharing your review with us and the community.

Review
Excellent service
Guimont - Manchester, NH 03103
Review
Excellent Service
Guimont - Manchester, NH 03103
Review
Two Thumbs Up
Currier - Manchester, NH 03104
Review
Great service, a pleasure to have service our equipment
Currier - Manchester, NH 03104
Review
Great service and response time
Currier - Manchester, NH 03104
Review
Plumbing review
Colleen - Manchester, NH 03104
Review
Quentin did a great job and was a pleasure to work with. He is typical of all the employees of GSMS. Top quality work and friendly
Barry - Manchester, NH 03109
Response from GSMS Air•Heating•Plumbing:

Thank you, Barry! Qwentin is an excellent addition to our GSMS family and I'm so pleased to hear he took great care of you. Your nest thermostat that was acting up on us, was replaced under warranty with a new generation 4 nest thermostat. Thank you for being a Home Club member!

Review
Excellent Service
Meagan - Manchester, NH 03104
Response from GSMS Air•Heating•Plumbing:

We are so glad to hear that you had a good experience.

Review
Very reliable and trustworthy
Turning Heads - Manchester, NH 03103
Response from GSMS Air•Heating•Plumbing:

Thank you so much for taking the time to leave an excellent rating. We really appreciate your business.

Review
Excellent service
Scott - Manchester, NH 03104
Response from GSMS Air•Heating•Plumbing:

We are incredibly grateful that you took the time out to leave us a 5-Star review.

Review
Great Company
Guimont - Manchester, NH 03102
Response from GSMS Air•Heating•Plumbing:

Thank you so much for taking the time to leave an excellent rating. We really appreciate your business.

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