Recent Jobs and Reviews
Job Locations and Reviews
Review
GSMS installed my furnace in 2018, Mark and Team are the only service providers that I will use. Mark is very knowledgeable and has shared some knowledge how’s with me.
Mark D.
.
Tilton, NH 03276
Mark D.
Pm on oil boiler everything looks good
Londonderry, NH 03053
Qwentin G.
I found that the cold water inlet line going to the boiler had a leaking 90. I also found that the boilers water filter nut was a little loose. I cut out the old 90 and replaced it with a new one and I tightened up the nut for the filter.
Exeter, NH 03833
Mark D.
Qwentin found a drain line that was chewed up by mice. We will replace the drain line with copper piping as far as we can access the existing drain line. Please note that this is an estimate and could very much change due to the fact that we do not know how far the drain goes into the wall and other undetermined factors.
Salem, NH 03079
Review
Great service! Explains issues well. Thank you
Qwentin G.
I started off with cleaning the outside coils with coil cleaner and water. Next, I checked all the electrical connections, the capacitor and everything looked good. I went inside and I replaced the air filter with a 20x25x5 air bear filter. I cleaned the indoor coil with dawn soap. I then flushed the trap with cleaner. I checked all the electrical connections and the capacitor and everything looked great. Lastly, I checked the systems operating pressures and the system was running very good.
Bedford, NH 03110
Mark D.
Pm on boiler,closet in front of boiler needs louver door if you put door there.Also need louver door on other side of boiler by hot water heater if you put door there.
Nashua, NH 03062
Mark D.
Did plumbing inspection
Hudson, NH 03051
Qwentin G.
I started off with washing the coil from the inside out on the outdoor unit with water. I checked all the wiring connections and everything looked good. Next I went inside and I cleaned all the filters with dawn soap and water. I cleaned the coils on the indoor heads with dawn soap and hot water. I noticed that the living room mini split head was pretty dirty so I recommended to the client to have that deep cleaned. Over all everything looked great!
Merrimack, NH 03054
Mark D.
Hot water heater has refrigerant heat.State will send a replacement
Concord, NH 03301
Review
Great service as always. Turned out grandchildren tired off the emergency gas shutoff when they were playing some game
Review
Mark and Jack did an excellent job cleaning out the very dirty air ducts in an old air exchanger (installed by someone else, back in 1993, and had never been cleaned out). They showed up on time, and worked steadily until finished. I should have had this done a long time ago.
Jack D.
Stair switch was off!
Merrimack, NH 03054
Review
He was very personable and professional. He explained exactly what was wrong and how he was going to make system right.
Review
Mark was onetime and suggested money's b ing tips. Great service
Review
We have had GSMS out for a couple of issues in our home. They are prompt, professional and do an excellent job. We will definitely hire again for future needs!
Review
Mark is just an amazing person! So thorough with the work he delivers. And Gina was wonderful, as she walked me through the entire process! It is always a pleasure to do business with you. Thank you!
Review
Excellent Service!
Review
Excellent Service!
-
Amherst, NH -
Atkinson, NH -
Auburn, NH -
Barrington, NH -
Bedford, NH -
Bow, NH -
Candia, NH -
Chester, NH -
Concord, NH -
Derry NH -
Dover, NH - HVAC & Plumber -
East Kingston, NH -
Epping, NH -
Epsom, NH -
Exeter, NH -
Goffstown, NH -
Hampton, NH -
Henniker, NH -
Hillsborough, NH -
Hollis, NH -
Hooksett, NH -
Hopkinton, NH -
Hudson, NH -
Lee, NH -
Londonderry, NH -
Madbury, NH -
Manchester, NH - HVAC & Plumbing Service -
Merrimack, NH -
Nashua, NH -
New Boston, NH -
Newmarket, NH -
Northfield NH -
Northwood, NH -
Pelham, NH -
Pembroke, NH -
Raymond, NH -
Rochester, NH -
Salem, NH -
Sandown, NH -
Stratham, NH -
Warner, NH -
Weare, NH -
Windham, NH
