What services does GSMS offer?

GSMS is a full-service heating, cooling, and plumbing company that provides a wide range of services, including AC repair, AC installation, furnace installation, furnace repair, boiler installation, heat pump and mini-split installation, ductwork services, water heater replacement, water heater repair, tankless water heater installation, and kitchen and bathroom plumbing.

What is the GSMS service area?

GSMS serves the following cities in New Hampshire: Manchester, Barrington, Hollis, Hooksett, Merrimack, and Nashua. They are dedicated to serving the local community and supporting the New Hampshire family-owned business.

What financing options does GSMS offer?

GSMS offers financing options to make their services more accessible to their customers. They have a special GSMS Home Club program that provides discounts and benefits to members.

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GSMS Air Heating Plumbing

$4.0M revenue • 20 employees • 724 E Industrial Park Dr Unit 16, Manchester, NH, 03109, United States

Last Updated Jun 3, 2026

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Company Overview

Company Name

GSMS Air Heating Plumbing

Address

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

Website

gsmsnh.com

Phone

(603) 634-9948

Approx. Annual Revenue

$4.0M

Employees

Established

2005

Google Reviews

5.0 (270 reviews)

Google Business Category

HVAC contractor

About GSMS Air Heating Plumbing

GSMS is a family-owned HVAC and plumbing company based in Manchester, New Hampshire, with approximately 2 employees. They offer a range of services, including heating, cooling, and plumbing solutions for homes and businesses in the local area, with over 35 years of experience and a commitment to providing excellent customer service.

Business Profile

Read from the GSMS Air Heating Plumbing website on Nov 4, 2026. Hover an item to see the exact wording it came from.

How GSMS Air Heating Plumbing works

Financing availableⓘ
Online bookingⓘ

Licenses, certifications & awards

Lennox Premier DealerManufacturer certified

Brands carried or installed

Ownership (as declared by the business)

About the website

Website quality (AI-assessed): 8/10 · Current copyright 2026; Detailed services and reviews

Recent changes

What changed on the GSMS Air Heating Plumbing website and Google listing, as detected by Coldlytics on each visit.

Nov 6, 2026
Google Business category is now HVAC contractor
Nov 4, 2026
Google Business category is now Plumber
Nov 4, 2026
Estimated headcount moved from 21-50 to 11-20 employees
Oct 30, 2026
Google reviews went from 266 to 270
Oct 30, 2026
Google Business category is now Plumber
Oct 15, 2026
Google Business category is now Plumber
Oct 13, 2026
Google Business category is now HVAC contractor

Coldlytics tracks changes like these across millions of businesses, so you can reach companies the moment they add a pixel, start hiring, or switch software.

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HVAC Companies near Manchester, NH

Browse all HVAC companies in New Hampshire →

Frequently Asked Questions about GSMS Air Heating Plumbing

Technologies Used

Social Profiles

Key Decision Makers

Cheryl Downing Co-Owner

Mark Downing Owner

Jack Downing Co-Owner