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Granite State Mechanical Services

Service is a specialty at GSMS. Since 1987 we have been providing New Hampshire's residential and commercial communities with heating, cooling, and plumbing installations, servicing, and repairs. Give us a call to have a member from our team meet with you and show you how you can take advantage of energy savings, indoor air quality, and efficiency of your home's comfort system. We offer all of our customers with free estimates, competitive, honest, and straight forward pricing; all with courteous and professional service. We always put our customers first. We have technicians on call 24 hours a day, 7 days a week in order to keep our customers comfortable 24/7 as well.

  • BBB Accredited Business

Answers from contractors near Merrimack, NH

What should homeowners be asking a contractor before making a hiring decision?

Wilson Valvez of Master Roof PRO answered:

May 23, 2017
I believe that the most important thing besides the cost is a Warranty and a detailed list of materials and work that needs to be done in writting. 
Builders - How do you maintain a clean building process? Especially if you have had a rough winter?
May 22, 2014
We have an 11 Point Jobsite Cleanup Roster that all of our employees need to sign when they become employed by us. It lets them know of the expectation prior to starting work. It also holds them accou ... read more

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