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The GSMS Difference™

The GSMS Difference.

Peace of Mind, from the Service Specialists™.

What should it boil down to when you have to make the final decision? It can be a difficult challenge determining the right contractor to hire. Your home is the biggest investment you have made and you want to make the right call without any regrets later on.

A lot of home service companies see our job as fixing the problem at stake. However, we identify a different problem. What happens before and after the actual job? We think about your journey and understand the concern many face in making a decision. In doing so, we have developed a bundle of guarantees that we call The GSMS Difference™. 

The GSMS Difference™ is our worry free promise that every job we complete will come with an upfront & honest price, a technician who is specialized & certified, a commitment to providing the most advanced products & services possible, and that all our work we complete will last.

With our worry free promise, we can build trust with you from the start. This helps ease the concerns up front and eliminate any regrets later on, as you are protected by our GSMS Difference™ set of guarantees.

GSMS Truprice™

No coupons, rebates, or haggling experience needed. We make it simple.

We offer our best, competitive price every single day and guarantee that our quoted price will be your total. We don't change the price because something didn't go as planned.

Service Specialist™ Promise

Our technicians have over 30 years of experience backing them up. 

We promise the technician entering your home is prepared & trained. Thanks to manufacturer training and continuing education, no one can quite compare to a Service Specialist™.

Modern Approach Guarantee

Envisioning the home of tomorrow, for today's comfort & efficiency.

With smart equipment comes greater efficiency and control. We guarantee that our team is able to offer products that help save you energy, without sacrificing comfort.

Start-Right Promise™

It isn't just a labor warranty, it's a promise on our craftsmanship.

When we start your new equipment we guarantee zero issues. If anything happens within the first two years, our team will make it right. No questions asked.

Schedule a Visit

Schedule an estimate, service visit, or maintenance visit.

All backed up by the GSMS Difference™.

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Call The Service Specialists: 603-424-8258

©2019 Granite State Mechanical Services, LLC.  NH LIC#: MBE0003276

724 East Industrial Park Drive, Unit 16, Manchester, NH 03109

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