Expert Furnace Repair, HVAC Installation, Insulation, Crawlspace and Duct Cleaning Services in Belmont

For over 98 years, GSM Services has made home comfort easy with trusted service, reliable solutions, and top-quality work in Belmont. As a licensed and insured home comfort specialist, we offer heating & cooling, insulation, air duct cleaning, crawlspace services to improve comfort, air quality, and energy efficiency. Enjoy easy online booking, instant quotes, and free service calls with any repair!

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Why Locals Choose GSM Services:

✅ Fast, Affordable & Reliable
✅ Licensed and Insured
✅ Locally Owned for 98+ Years
✅ Voted Best Heating & Cooling Company
✅ 100% Guaranteed Satisfaction
✅ Outstanding Warranties
✅ Unbeatable Financing for Any Budget
✅ FREE HVAC Service Calls with Repairs
✅ FREE System Quotes
✅ FREE Insulation, Crawlspace and Home Energy Audits

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New HVAC System Cost & Duct Cleaning Prices in Belmont

Need HVAC or duct cleaning? Get your free instant quote online in just 30 seconds!

HVAC INSTALLATION

DUCT CLEANING

DRYER VENT CLEANING

Heating & Cooling Services in Belmont:

Crawl Space, Insulation, Generators & Other Home Services in Belmont:

Furnace Repair in Belmont

If your Heater isn’t working, trust GSM Services for fast, affordable Furnace repair in Belmont. Our licensed HVAC technicians service all makes and models, provide expert solutions, and offer clear, upfront pricing with no hidden fees. We also include a free service call with any repair.

HVAC Replacement & Install Experts

Looking for a New Heating System? Our licensed HVAC installers in Belmont are certified experts in energy-efficient heating & cooling systems that can lower your energy bills by up to 30%. We’ll walk you through the latest AC options and help you choose the right system for improved comfort, quieter operation, and cleaner indoor air. Call or book online today for a free, no-obligation consultation and quote!

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Certified on All Types of Heating & Cooling Systems

Central Heating & Air Conditioning Systems
Ductless Mini Splits
Package Systems
Heat Pump Systems
Gas furnaces
Oil furnaces
Electric Furnaces

Belmont Crawl Space Repair & Service Contractors

GSM Services provides professional crawl space services in Belmont. Our team protects your home from moisture damage and mold, enhancing air quality, boosting energy efficiency, and reducing pests. A well-maintained crawl space also strengthens structural stability and overall comfort. Book a free crawl space inspection and quote online today!

Crawl Space Solutions:

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Duct Cleaning Services in Belmont:

Our duct cleaning services thoroughly clean your entire duct system—not just the air vents—to ensure optimal air quality and system efficiency. We start with a full inspection, checking for tears, leaks, or any issues that could affect performance. Our comprehensive cleaning service includes a special disinfectant spray treatment to leave your ducts fresh and sanitized. Get a free, instant online quote in seconds and breathe cleaner air with our professional duct cleaning services!

Insulation Service Company in Belmont:

GSM Services is your trusted local insulation company in Belmont. We provide high-quality, affordable home insulation for attics, walls, crawl spaces, basements, floors, garages and more. Our certified experts use various insulation types to fit your home and budget, helping reduce energy bills and improve comfort and air quality year-round. Experiencing uneven temperatures or high utility costs? Schedule your free insulation inspection today! We’ll assess current insulation, check for air leaks or moisture issues, and provide a custom, no-obligation quote for your home. Call or book online now!

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Photo Galleries From Belmont

new door installed to ensure air sealed and insulated on an exterior brick wall

new door - installed to ensure air sealed and insulated from the outside.

insulated and air sealed

crawlspace interior with the ground floor sealed

all ground floor sealed

News & Events From from Belmont

pie chart breakdown of home energy usage statistics

Start 2017 with saving Energy, Money, & the Planet!

Home improvements are a great way to start off your new years resolution of "saving money". Take a look at your heating and cooling costs and have a Whole Home Energy Evaluation done.... [Read more]

Is a wifi thermostat right for your home?

Do you need a wifi thermostat in your home? How much does a wifi thermostat cost? What makes a wifi thermostat smart? How much money can you save with a wifi thermostat?.... [Read more]

Save Energy on Heating with This List

High energy bills can come as a surprise in the winter. In our service area, air conditioners see a lot more use than heaters. When temperatures drop, homeowners might feel relieved as bills start to lower as well-until the heater becomes more and more of a necessity.... [Read more]

More News & Events

Work Requests From Belmont, NC

Project Location: Belmont, NC
Moved into a new house and would like the HVAC inspected.
Project Location: Belmont, NC
I need an estimate for a new AC system.
Project Location: Belmont, NC
Replacing original 30 year old system, a/c and gas pack and probably duct work. 1650 sq. ft. ranch on crawl space, good head room. 12 registers, two returns.
Project Location: Belmont, NC
Schedule my Cooling System Service.
Project Location: Belmont, NC
Spring AC check
Project Location: Belmont, NC
Set up Spring tune-up
Project Location: Belmont, NC
Schedule Spring maintenance
Project Location: Belmont, NC
I need to replace my heating and air unit. As far as I know, the duct work is ok, but would need to be checked. House is 800-900 sq feet.
Project Location: Belmont, NC
Our heat pump needs to be replaced. I am interested in pricing a geothermal heat pump.
Project Location: Belmont, NC
Would like to get an estimate on running duct work into screened in porch from existing unit. We are making it into an all seasons porch.
Project Location: Belmont, NC
Filter changes, preparing for winter with heat check and new home, refrigerator leak
Project Location: Belmont, NC
Need a tune up
Project Location: Belmont, NC
Insulate detached garage attic and garage door
Project Location: Belmont, NC
Want to set up maintenance program for HVAC system
Project Location: Belmont, NC
Inspection
Project Location: Belmont, NC
Fan not spinning on outside unit.
Project Location: Belmont, NC
Looking for general tune-up plus making sure the ac drain lines in the crawl space are sloped correctly. Looks like there are some bows in the drain lines. Furnace pvc exhaust pipe also needs repair at the exterior wall where someone (landscaper?) previously broke the end of the pipe.
Project Location: Belmont, NC
Need to schedule ac check. Not cooling
Project Location: Belmont, NC
I would like a quote on fixing my crawlspace and i need my dryer vent cleaned
Project Location: Belmont, NC
I have a home air-conditioning unit that is about 12 years old that I would like to replace. The unit, I was told the last time it was repaired, uses Freon 22 and is considered as being closed to its end of life. The unit is currently operational although is not cooling as fast as I believe it should. In a recent mailing I received from GSM there is a "Home Health Confort Care Package" advertised that got me to consider replacing the air-conditioning unit I am concerned about.