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Granite State Mechanical Services Llc

Heating and Air Conditioning, Water Heaters, Plumbing,

About us

It's important to choose a local plumber, heating & A/C contractor that you can depend on. GSMS has over three decades of experience, holds an A+ rating with The Better Business Bureau of NH, is fully licensed, and has factory trained technicians. Our GSMS Difference will complete your checklist when it comes to finding the right contractor. With our Start-Right Promise (which comes with every new installation) we promise that you'll have no issues in the first two years or we'll make it right.

Business highlights

37 years of trusted experience
Emergency Services Offered

Services we offer

Residential and light commercial, plumbing, heating, cooling, high efficiency installs, warranted service, new installations & retrofits.

Services we don't offer

Drain clearing.

Amenities

Free Estimates
Yes
Warranties
Yes
Emergency Services
Yes


Accepted payment methods

American Express
Check
Discover
MasterCard
Visa

Reviews

5.05 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%


Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0
Showing 1-5 of 5 reviews

Deb A.
02/2019
5.0
heating & air conditioning/hvac
  + -1 more
Fantastic job and professional service from the time I contacted GSMS to make an appointment to the promptness of providing a report and invoice for their services. Their website is well designed and very easy to use. I received a call shortly after I submitted a request to book an appointment. Zak was friendly and an appointment was booked in no time! Mark was punctual and provided professional service while explaining the type of furnaces we have. I will definitely use GSMS again and highly recommend them.
Description of Work: Furnace tune up

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$125

Response from Granite State Mechanical Services Llc
Thank you for your review, [Member Name Removed]! I'm so glad to hear that you are joining our growing family of lifelong clients. We work hard to make sure our team of Service Specialists deliver the exact experience you described. We look forward to working with you in the near future. Have a "Granite" Day! -Zak

Joe L.
10/2018
5.0
heating & air conditioning/hvac, plumbing, water heater repair
  + 1 more
I have used GSMS for several projects over the years. The are always professional and provide excellent service. This service was for the replacement of a gas forced hot air furnace with a high efficiency gas forced hot air furnace. Over the years I have used GSMS during a kitchen remodel, a master bath remodel, upgrade of Air Conditioning and the installation of an on-demand gas water heater. I highly recommend them!
Description of Work: Furnace Replacement & Upgrade

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$5,000

Response from Granite State Mechanical Services Llc
Thank you for speaking so highly of us, [Member Name Removed]! We're glad to have a client like you. Stay warm and I hope you're enjoying your new heating system. -Zak

Lori B.
01/2016
5.0
heating & air conditioning/hvac, plumbing, water heater repair
  + 1 more
My experience with GSMS was very good. They are punctual and I can count on the job being completed professionally. Water leaks can be a challenge to identify and resolve, but through careful analysis and checking multiple areas that could be the source of the problem, they were able to address the situation and take care of the problem.
Description of Work: Replaced a hot water tank. Also diagnosed & made the necessary repair to resolve a water leak coming through the ceiling.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$1,800

Response from Granite State Mechanical Services Llc
Thank you for sharing your GSMS experience with the Angie's List community. We greatly appreciate your kind and honest words. -Zak

Suzanne E D.
02/2015
5.0
heating & air conditioning/hvac
  + -1 more
unknown
Description of Work: New furnace----great

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$4,000

Cheryl F.
06/2014
5.0
heating & air conditioning/hvac
  + -1 more
Our high velocity air-conditioner system was serviced 3 weeks ago for it's annual check by another company we have used, but had little confidence in, and lo and behold, it has not been working properly. Granite State Mechanical was referred to us by our contractor, and we are so appreciative of that! Mark and Zack were extremely responsive, and accommodated my and quot;cry for helpand quot; with same-day service. They provided an estimate of arrival time, then called as they were leaving the prior job to let us know that they were en-route, and arrived right on-time. After putting shoe-coverings on as soon as they entered the house (thank you so much for your kind consideration!), they immediately got to work, promptly assessed the problem, took the time to explain what needed to be done and why, and worked very efficiently. Their pricing was reasonable, and we are very pleased with their work. They kindly took us on as new customers, and we look forward to working with them for years to come. Thank you so much for your professionalism, expertise, and a great experience! :)
Description of Work: Replaced faulty wiring in compressor unit.

Rating CategoryRating out of 5
quality
5.0
value
5.0
professionalism
5.0
responsiveness
5.0
punctuality
5.0

Yes, I recommend this pro
$267

    Contact information

    724 E Industrial Park Dr Unit 16, Manchester, NH 03109

    http://www.gsmsnh.com

    Service hours

    Sunday:
    Open All Day
    Monday:
    Open All Day
    Tuesday:
    Open All Day
    Wednesday:
    Open All Day
    Thursday:
    Open All Day
    Friday:
    Open All Day
    Saturday:
    Open All Day

    Licensing

    Insured

    Licensed*

    Eco-friendly Accreditations

    LEED Accredited Professional
    No
    Energy Star Partner
    No
    EPA Lead-Safe Certified
    No
    Use Green Products or Work Practices
    Yes
    State Contractor License Requirements

    All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our State Contractor License Requirements page.

    *Contact business to see additional licenses.


    Service Categories

    Heating and Air Conditioning,
    Water Heaters,
    Plumbing,
    Natural Gas Lines,
    Air Duct Cleaning

    FAQ

    Granite State Mechanical Services Llc is currently rated 5 overall out of 5.

    Sunday: Open All Day

    Monday: Open All Day

    Tuesday: Open All Day

    Wednesday: Open All Day

    Thursday: Open All Day

    Friday: Open All Day

    Saturday: Open All Day

    Granite State Mechanical Services Llc accepts the following forms of payment: American Express,Check,Discover,MasterCard,Visa
    Yes, Granite State Mechanical Services Llc offers free project estimates.
    Yes, Granite State Mechanical Services Llc offers eco-friendly accreditations.
    No, Granite State Mechanical Services Llc does not offer a senior discount.
    Yes, Granite State Mechanical Services Llc offers emergency services.
    Yes, Granite State Mechanical Services Llc offers warranties.
    Granite State Mechanical Services Llc offers the following services: Residential and light commercial, plumbing, heating, cooling, high efficiency installs, warranted service, new installations & retrofits.
    Drain clearing.

    Contact information

    724 E Industrial Park Dr Unit 16, Manchester, NH 03109

    http://www.gsmsnh.com

    Service hours

    Sunday:
    Open All Day
    Monday:
    Open All Day
    Tuesday:
    Open All Day
    Wednesday:
    Open All Day
    Thursday:
    Open All Day
    Friday:
    Open All Day
    Saturday:
    Open All Day