Guardian Mechanical Services, LLC (GMS)

Licensed

$89/on-site estimate

(waived if hired)

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Zip code

Type of heating system

Total square footage of property

Building height

Responds within a day

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About

At GMS Refrigeration & HVAC, we take pride in delivering top-notch industrial, commercial, and residential services tailored to meet the unique needs of our clients. Whether you're a homeowner facing a no-heat emergency or a commercial business in need of reliable cooling solutions, our expertly trained technicians are equipped with the latest technology and adhere to the highest standards to ensure optimal efficiency. We offer free estimates and stand behind our work with warranties on services and applicable purchases. No job is too big or too small for us—whether it’s thermostat services, addressing loud noises, or fixing leaks, we're here to help. Choose GMS for quality and peace of mind!

Overview

Hired 3 times

Serves Andover, MA

Background checked

License verified

3 employees

3 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Apple Pay, Cash, Credit card, PayPal, Square cash app, Venmo, and Zelle.

Credentials

License verified

Refrigeration Technician

License state: MA

Background checked

Passed by Kurt Barnes on Jan 6, 2026.

Services offered

Service needed

Installation of heating systems

Removal of heating systems

Installation of ducts and vents

Other

Type of heating system

Furnace

Boiler

Heat Pump

Pellet/Wood Stove

Fuel source

Natural gas

Propane gas

Electricity

Other

Projects and media

Reviews

Customers rated this pro highly for professionalism, value, and work quality.

Exceptional 5.0

5 reviews

5

100%

4

0%

3

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2

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1

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Eric C.

Feb 2, 2026

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Hired on Thumbtack

On time, fast, friendly and reasonably priced. Will hire again for future needs

Details: Routine maintenance • Routine maintenance • Attic • Outside • Townhouse

Central Air Conditioning Repair or Maintenance

lawtownrep1

Jan 30, 2024

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From Google

Guardian Mechanical Services, LLC (GMS)'s reply

Charlene F.

Feb 9, 2024

•

From Google

Boiler replaced Excellent job done! Kurt is knowledgeable, patient, friendly and professional. The problem was explained in detail and the boiler replacement with an auto-water feed [a must have] was done efficiently at a fair price. 4-months later, I remain grateful and pleased with the work performed!

Guardian Mechanical Services, LLC (GMS)'s reply

We at GMS are glad to be at your service, It was a pleasure servicing your Air needs Ms. Foster. Thank you! GMS

Nicholas R.

Jul 11, 2024

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From Google

Professional and very knowledgeable 5 star HVAC service .Quick response and HELP in a Heat Wave. Saved the Day !!!!

Guardian Mechanical Services, LLC (GMS)'s reply

It was a pleasure servicing your Air needs Mr. Rice. Thank you! GMS

MELINDA M.

Feb 8, 2024

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From Google

Guardian Mechanical Services, LLC (GMS)'s reply