0% Interest Financing and Lennox Rebates Up to $1,800
Request Service Call Now Contact Us Coupons

Litchfield, NH

Your Local Plumbing & HVAC Experts in Litchfield, NH

Homeowners in Litchfield, NH, count on GSMS for dependable plumbing, heating, and cooling services. As a family-owned company, we bring decades of experience and a neighborly approach to every service call. Whether you’re looking to upgrade to a ductless system, need a new water heater, or have a plumbing emergency, our licensed team is here to make your home comfortable again.

Schedule your service today by calling 603-424-8258 or request an appointment online.

Ductless Mini-Splits: The Smart Choice for Litchfield Homes

As a Mitsubishi Electric dealer, we specialize in high-efficiency ductless mini-split systems designed for New England homes.

If you’re in Litchfield and looking for a modern, efficient alternative to traditional systems, our team can recommend the ideal Mitsubishi ductless solution for your space.

Plumbing Services for Litchfield, NH

Plumbing problems can disrupt daily life quickly. That’s why GSMS offers full-service plumbing solutions designed to keep your home’s water flowing smoothly and reliably.

Water Heater Repair & Installation

Our plumbers service both traditional and tankless water heaters, restoring hot water fast when you need it.

Whole-Home Water Filtration

Protect your plumbing and enjoy better-tasting water with custom water filtration and reverse osmosis systems built for your home.

Plumbing Repairs & Installations

From leaky faucets to broken fixtures, our licensed plumbers provide reliable solutions for any issue.

Heating & Cooling Services in Litchfield

Keeping your home comfortable in New Hampshire’s changing seasons means having reliable heating and cooling systems. Our technicians are here to handle everything from urgent repairs to complete system replacements.

Furnace & Boiler Services

Stay warm in Litchfield winters with expert furnace and boiler repair, replacement, and maintenance.

Air Conditioning Repair & Installation

Beat the summer heat with AC repairs and replacements designed to keep your home cool and efficient.

Indoor Air Quality Solutions

From air purifiers to humidity control, we help you create a healthier home environment.

Why Litchfield Homeowners Choose GSMS for Home Comfort

As a family-owned business serving Southern New Hampshire, GSMS is trusted by homeowners throughout Litchfield, NH for honest, reliable service. Whether you’re near Campbell High School or along Albuquerque Avenue, our technicians know the unique needs of the community and deliver solutions that last.

When you need comfort restored fast or want to upgrade your home systems, turn to GSMS — the local team your neighbors trust. Call us today at 603-424-8258 or request service online to get started.

Recent Jobs and Reviews in , NH

Job Locations and Reviews

Na
Na
Qwentin G.
Qwentin G. Checked in
Na
Dover, NH 03820
Mark D.
Mark D. Checked in
This proposal outlines the replacement of your failed 40-gallon Bradford White power-vented natural gas water heater. Because your tank is currently covered under the manufacturer's warranty, the physical cost of the new tank itself is covered. The pricing in this proposal strictly covers the professional labor, the distributor's warranty processing fee, the necessary structural plumbing modifications, and the required safety code upgrades to properly install the new unit. Scope of Work 1. Demolition & Warranty Processing Removal: We will safely drain, disconnect, and remove your existing failed water heater. Warranty Handling: GSMS will handle the logistics of returning the failed tank and will cover the $100 warranty processing fee charged by the distributor on your behalf. 2. Equipment Installation & Code Upgrades The New Tank: We will supply and install your new warranty-replacement 40-gallon Bradford White power-vented natural gas water heater in the exact same footprint. Conn
Amherst, NH 03031
Qwentin G.
Qwentin G. Checked in
Removed the dip tube and the anode rod. Cleaned the threads on the tank really well. Taped and used pipe sealant on the threads. I let the client know that the wet sensor got a little bit of water on it so I left it unplugged so it can dry out.
Bedford, NH 03110
Completed the Central AC maintenance and the mini split maintenance. Everything went great! I found inside of the furnace two gas leaks and a gas leak below the shut-off for the furnace. After repairing the leaks I gas sniffed all lines with my electronic sniffer and everything was good. No more leaks. Please see the attached form as well.
Completed the Central AC maintenance and the mini split maintenance. Everything went great! I found inside of the furnace two gas leaks and a gas leak below the shut-off for the furnace. After repairing the leaks I gas sniffed all lines with my electronic sniffer and everything was good. No more leaks. Please see the attached form as well.
Qwentin G.
Qwentin G. Checked in
Completed the Central AC maintenance and the mini split maintenance. Everything went great! I found inside of the furnace two gas leaks and a gas leak below the shut-off for the furnace. After repairing the leaks I gas sniffed all lines with my electronic sniffer and everything was good. No more leaks. Please see the attached form as well.
Milford, NH 03055
Review
very courteous, efficient. a pleasure to work with.
Peter - Merrimack, NH 03054
Qwentin G.
Qwentin G. Checked in
Installed new thermostat. Tested operation and everything was working as it should.
Windham, NH 03087
Jack D.
Jack D. Checked in
This proposal outlines the rapid replacement of your existing, failed Fujitsu multi-zone system. Because your current system has suffered a refrigerant leak, we will completely remove the old equipment and replace it with a highly reliable Mitsubishi 2-zone ductless system. Based on our load calculations, your current capacities are perfectly sized for the spaces. We will be installing a standard Mitsubishi heat pump (non-Hyper Heat), which acts as a direct equivalent to your previous system. This will provide you with excellent, reliable air conditioning throughout the summer, as well as highly efficient supplemental heating during the milder spring and fall shoulder seasons. Scope of Work 1. Demolition & Equipment Removal Safe Extraction: We will safely recover any remaining refrigerant, disconnect the electrical components, and completely remove the existing Fujitsu outdoor condenser and the two indoor wall heads. 2. Indoor Equipment (2 Zones) We will supply and install two (2
Merrimack, NH 03054
Review
CALL BACK IS IN THE WORKS- THERMOSTAT IS BLACK - NO REPSOPONSE.
Montcalm - Nashua, NH 03060
Mark D.
Mark D. Checked in
Found overflow switch off.Looks like air was blowing on it from door cover moved switch .
Nashua, NH 03060
Mark D.
Mark D. Checked in
Removing vent and relocate drain line under sink and install atm vent.We will do temperaily cap on roof flange.Home owner to do have roofer do permanent patch.Will cut vent pipe and leave inside wall unless owner has sheetrock removed than we can remove pipe.
Manchester, NH 03102
Jack D.
Jack D. Checked in
Installation of a stand-alone dehumidifier rated for crawlspaces. Unit will be installed in crawl with a condensate pump which will take moisture away from the air and transfer it through a condensate pump to the outside. Outside, a 3/4" PVC drain line will be seen to dispose of the moisture. Unit will sit on blocks. Unit will require 120V standard outlet. We can coordinate with our electrical team, listed as a line item, or you can hire your own electrician to install a outlet for use.
Sanbornton, NH 03269
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
Qwentin G.
Qwentin G. Checked in
Found that the unit was low on R22 refrigerant. I added 1 and a half pounds of refrigerant. The unit is running and cooling now. Zak can come out and schedule a free estimate for a system replacement.
Chester, NH 03036
Qwentin G.
Qwentin G. Checked in
Found that the fan blade was broken in half and bent. We will send over an estimate by the end of today.
Londonderry, NH 03053
Qwentin G.
Qwentin G. Checked in
Replaced the failing expansion tank.
Manchester, NH 03102
Jack D.
Jack D. Checked in
Water leak in basement by the water heater was actually from the toilet upstairs. It had a very bad waste water leak at the toilet flange connection. I pulled the toilet and disinfected everything. I then reset the toilet with new hardware and a new gasket. I flushed it multiple times and it is not leaking.
New Boston, NH 03070
To provide highly efficient cooling and supplemental heating for your sunroom, we have engineered a dedicated single-zone Mitsubishi system. As we discussed, this system is perfectly sized to handle the summer cooling load while extending the usability of the room well into the cooler months.

Performance Expectations

Summer Cooling: This system is specifically sized to easily handle the heavy cooling load of the sunroom's Florida-style windows.

Winter Heating Limitations: While this unit provides excellent, reliable heating during the fall, spring, and milder winter days, it is limited based on the room it's installed in (i.e. the windows). We do not guarantee its ability to maintain the room's temperature during the true, deep winter months. The outdoor temperature must remain above 20 to 30 degrees Fahrenheit for this system to effectively maintain the set temperature in this specific sunroom environment. This aligns perfectly with your goals for the space, but we want to ensure e
To provide highly efficient cooling and supplemental heating for your sunroom, we have engineered a dedicated single-zone Mitsubishi system. As we discussed, this system is perfectly sized to handle the summer cooling load while extending the usability of the room well into the cooler months.

Performance Expectations

Summer Cooling: This system is specifically sized to easily handle the heavy cooling load of the sunroom's Florida-style windows.

Winter Heating Limitations: While this unit provides excellent, reliable heating during the fall, spring, and milder winter days, it is limited based on the room it's installed in (i.e. the windows). We do not guarantee its ability to maintain the room's temperature during the true, deep winter months. The outdoor temperature must remain above 20 to 30 degrees Fahrenheit for this system to effectively maintain the set temperature in this specific sunroom environment. This aligns perfectly with your goals for the space, but we want to ensure e
Adam P.
Adam P. Checked in
To provide highly efficient cooling and supplemental heating for your sunroom, we have engineered a dedicated single-zone Mitsubishi system. As we discussed, this system is perfectly sized to handle the summer cooling load while extending the usability of the room well into the cooler months. Performance Expectations Summer Cooling: This system is specifically sized to easily handle the heavy cooling load of the sunroom's Florida-style windows. Winter Heating Limitations: While this unit provides excellent, reliable heating during the fall, spring, and milder winter days, it is limited based on the room it's installed in (i.e. the windows). We do not guarantee its ability to maintain the room's temperature during the true, deep winter months. The outdoor temperature must remain above 20 to 30 degrees Fahrenheit for this system to effectively maintain the set temperature in this specific sunroom environment. This aligns perfectly with your goals for the space, but we want to ensure e
Nashua, NH 03063
Qwentin G.
Qwentin G. Checked in
Checked out the thermostat and it was working, nothing was broken on it. Me and the client both agreed that putting the lock bx on it wasn't a good idea.
Bedford, NH 03110
Review
First time using this company, and I was very impressed with the service as well as the knowledge of the Technician
Eileen - Hooksett, NH 03106
Qwentin G.
Qwentin G. Checked in
Completed the mini split maintenance today. I recommended all three heads be deep cleaned. She approved a deep cleaning for the bedroom head which is the worst one. Other than that the system is running great! Please see the attached forms.
Hooksett, NH 03106
Jack D.
Jack D. Checked in
Today I assessed the existing water treatment system. Also, I took a comprehensive + radon water test. Once we receive the results from the laboratory, we will report back to you with the results.
Amherst, NH 03031
Jack D.
Jack D. Checked in
Replace dielectric feed tube on system 2000 hot water tank. Replace anode rod.
Bedford, NH 03110
Qwentin G.
Qwentin G. Checked in
Found that the drain line was getting clogged. I cleaned out the drain pan and line with cleaner and hot water. I also blew out the line with a CO2 cartridge. After putting it all back together I tested operation and everything was working great.
Manchester, NH 03102
Qwentin G.
Qwentin G. Checked in
I was there for about 40 minutes and everything was operating normally. I didn't hear any abnormal noises when the units were turning on, running or shutting off. I let the client know if he hears it again to try to get it on video and send it over to us.
Manchester, NH 03102
Qwentin G.
Qwentin G. Checked in
Replaced the indoor blower motor, board and blower wheel bearing. Tested operation and it was running quietly now.
Bedford, NH 03110
Outdoor unit making noise.Checked amp, capacitor and charge everything is fine.outdoor coil is in bad shape.By listening to recording it sounds like bearings are wearing out causing noise
Outdoor unit making noise.Checked amp, capacitor and charge everything is fine.outdoor coil is in bad shape.By listening to recording it sounds like bearings are wearing out causing noise
Mark D.
Mark D. Checked in
Outdoor unit making noise.Checked amp, capacitor and charge everything is fine.outdoor coil is in bad shape.By listening to recording it sounds like bearings are wearing out causing noise
Merrimack, NH 03054
Mark D.
Mark D. Checked in
Replaced sprayer under warranty
Newmarket, NH 03857
Manchester, NH - This proposal outlines the direct replacement of your existing 30-gallon atmospheric natural gas water heater. We will safely remove the old unit and install a brand-new, high-efficiency 40-gallon natural gas water heater.

In addition to the equipment replacement, this installation includes all necessary plumbing modifications to ensure the new system is 100% compliant with current Manchester, NH building and plumbing codes.

Scope of Work

1. Demolition & Equipment Removal

Safe Extraction: We will safely drain the existing 30-gallon water heater, disconnect the gas and water lines, and remove the old unit from the property. All job-related debris and the old tank will be professionally disposed of.

2. New Equipment Installation

The Water Heater: We will supply and install a new, reliable 40-gallon natural gas atmospheric water heater in the existing footprint.

Gas Connection: We will safely reconnect the new water heater to your existing natural gas drop and perform a thorough le
Qwentin G.
Qwentin G. Checked in
This proposal outlines the direct replacement of your existing 30-gallon atmospheric natural gas water heater. We will safely remove the old unit and install a brand-new, high-efficiency 40-gallon natural gas water heater. In addition to the equipment replacement, this installation includes all necessary plumbing modifications to ensure the new system is 100% compliant with current Manchester, NH building and plumbing codes. Scope of Work 1. Demolition & Equipment Removal Safe Extraction: We will safely drain the existing 30-gallon water heater, disconnect the gas and water lines, and remove the old unit from the property. All job-related debris and the old tank will be professionally disposed of. 2. New Equipment Installation The Water Heater: We will supply and install a new, reliable 40-gallon natural gas atmospheric water heater in the existing footprint. Gas Connection: We will safely reconnect the new water heater to your existing natural gas drop and perform a thorough le
Manchester, NH 03104
Review
Excellent as usual
John - Hollis, NH 03049
Review
Great service, right on time. Jack did a great job picking out my new faucets.
Lisa - Merrimack, NH 03054
Review
Qwentin was right on time and provided friendly and thorough service for my boiler. He answered all of my questions and the pricing felt very fair. Thanks!
Daniel - Manchester, NH 03102
Review
Arrived quickly to my situation and solved the problem immediately
Kathleen - Merrimack, NH 03054
Review
Excellent service, hard working individual, arrived on time
Kathleen - Merrimack, NH 03054
Review
Great job
Levasseur - Manchester, NH 03102
Review
Great team to work with very knowledgeable and easy-going
Joey - Goffstown, NH 03045
Review
Jack really took care of me and my home today. Not only did he repair a broken system but when I mentioned my AC wasn’t working correctly, he thought to bring a backup panel so when he saw that was the issue, he fixed it right then and there….no “next visit” needed! I could go on but let me just say how well taken care of I feel. Thanks to the whole team but especially Jack today!
Amy - Moultonborough, NH 03254
Review
Great communication, timely responses, good service
Nick - Nashua, NH 03064
Review
Worked with Jack before. He is always professional & does what he has to do to remedy our problem. He’s a great guy & the company should be proud of him.
Steve - Nashua, NH 03064
Review
great service!
Barb - Merrimack, NH 03054
Review
Quentin answered all my questions and reviewed situation and all options re: AC
Susan - Hooksett, NH 03106
Review
A huge shout out to Jack! Jack is an asset to GSMS family. He was prompt, professional and very thorough with the maintenance of my HVAC system. A bonus is that he was easy to talk to and engaging with conversation about a variety of subjects.
Lorralyn - Londonderry, NH 03053
Review
Great job
Read - Merrimack, NH 03054
Review
Qwenten contacted us before his arrival to let us know he was on his way and arrived promptly. He was very knowledgeable and answered all our many questions. He provided different possible solutions for at this time and went with our decision with no pressure. Very friendly and easy to discuss options with.
Peter - Merrimack, NH 03054
Review
We have been very pleased with GSMS services from replacing our central AC & furnace 2 years ago plus a few plumbing issues we have had repaired and regular maintenance services. Jack, Qwentin, Mark and the rest of the team have been very professional and friendly and do a great job the first time and always cleaned up after themselves. They definitely go above and beyond and we highly recommend GSMS and we do. Fair prices as well!
Pamela - Manchester, NH 03109
Review
Extremely professional and on time, great work! Highly recommend their services.
Georgine - Bedford, NH 03110
Review
Excellent, professional, friendly service
Ginger - Hollis, NH 03049
Review
Always willing to help and does an excellent job.
Darlene - Manchester, NH 03109
Review
AC Service
Dean - Bedford, NH 03110
Review
Quen was great! Professional and knowledgeable!
Mike - Weare, NH 03281
Review
Great job. Very courteous and friendly.
Aaron - Manchester, NH 03103
Trusted Quality & Service