Furnace Repair, Heating Installation, HVAC Duct Cleaning, Insulation, Mold Removal & Crawlspace Experts in Waco, NC

GSM Services has set itself apart with superior customer service, reliability, and quality of work for over 97 years in Waco, NC!

We are your one stop shop for home comfort solutions. We're a licensed & insured heating & air conditioning contractor, hvac duct cleaning, crawl space experts, & insulation pros in Waco. We help people live better through improved home comfort, air quality, and energy efficiency.

If you are in need of repair, installation, tune up, or any other heating & cooling, crawl space, insulation, home mold solutions, or air duct cleaning services you are in the right place!

Get an Online Quote for HVAC Installations & Duct Cleaning Services in Waco

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We Offer The Following Home & HVAC Service Calls in Waco, NC

• FREE Furnace Service Calls with Repair
• FREE Home Energy Audits
• FREE Crawl Space Evaluations
• FREE Insulation Evaluations
• FREE Instant Quote On New HVAC Systems

HVAC Services Provided in Waco, NC

• Furnace Installation
• Furnace Repair
• Furnace Safety Check
• Heating & Furnace Tune Ups & Maintenance
• AC Installation
• Air Conditioner Repair
• AC Tune Ups & Maintenance
• Heat Pump Repair, Installation, & Service
• Ductless Mini Splits
• Thermostat Installation, Repair & Replacement
• Ductwork Repair, Replacement, Installation
• Freon & AC Recharge
• Air Duct Cleaning
• Ductless Mini Split Installation & Repair
• Instant Quote on New HVAC System

Crawl Space, Mold Solutions, Insulation & Other Home Comfort Services Offered in Waco, NC

• Insulation Services
• Dryer Vent Cleaning
• Dryer Vent Replacement
• FREE Home Energy Audits
• Air Quality Services
• Crawl Space Repair
• Crawl Space Encapsulation
• Mold Check, Mold Remediation & Removal
• Whole Home Dehumidifiers
• Generator Repair
• Home Generator Installation

Fast & Affordable Heating Service Specialists in Waco, NC

If your furnace won't turn on, if there's a leak, if the blower isn't working or if you want regularly scheduled maintenance, then you're in the right place! GSM Services has a dedicated and devoted team of furnace service professionals with decades of combined experience. Our trained technicians can provide a prompt and thorough inspection of your unit to determine the problem and suggest the solution. Our furnace service team provides FREE written estimates for all potential furnace repairs so you will never be surprised by the bill. Also, we provide furnace service for all types and models, including natural gas, oil, electric and propane. Don’t hesitate to contact us today, call or click to schedule your furnace service appointment with GSM Services!

Benefits of regular furnace service:

• Optimal home comfort
• Reliable performance
• Better furnace efficiency
• Extended life
• Lower repair costs & increased energy savings

Proven Furnace Installation Experts

If your furnace is old or your bills seem too high, replacing your furnace will be the best option. Basic usage compromises your unit over time and keeping a damaged or old furnace may be costing you more money than installing a new unit. Our certified and highly trained team of furnace installation professionals can provide a thorough inspection of your unit to help you make that decision. Our skilled experts can replace all types of units with high-quality and energy efficient models that are guaranteed to lower your energy bills by as much as 30%. Trust our furnace installation professionals to provide you with reliable services every step of the way. Call or click today to schedule your FREE furnace installation estimate!

We install a variety of furnace types:

• Gas furnaces
• Oil furnaces
• Electric furnaces
• Propane furnaces
• Heat pump systems

Waco's Dependable Home Insulation Professionals

We specialize in a variety of home insulation services that are aimed to lessen your home's carbon footprint and save energy and money each month! We offer it all, from air sealing to ductwork to various types of insulation services such as blown in fiberglass, cellulose, injection foam, and more in Waco, NC. We understand that you need to use the correct type of insulation in your home, and it needs to be placed in the correct areas.

Before we perform any insulation work in your home, we first take the time to conduct a custom home energy audit. The audit is used to figure out what the root cause of your energy woes, and gives us an idea of what the best method would be to fix it. At GSM Services, we not only test and investigate your home's energy usage, but we will discuss and prioritize the proper repairs. You'll know which ones will save you the most energy and why. This will also help direct you in making the best decision for you and your family.

Crawl Space Repair & Service Contractors

Welcome to GSM Services – the leading experts in crawl space restoration and repair. Is your crawl space causing issues such as moisture, mold, or structural damage? Don't worry; you're in the right place. We specialize in turning crawl space nightmares into healthy, functional, and energy-efficient spaces. We offer FREE Crawl Space Inspections. We will check the humidity level, look for any mold or growth, inspect your home's insulation and air duct system, air leakage, air quality and more! We can provide you different solutions to create a healthy, comfortable, and safe environment under and inside your home. Some of the crawl space services we offer are Whole Home Dehumidifiers, Crawl Space Encapsulations, Vapor Barrier, Crawl Space Insulation, Crawl Space Cleaning & Air Sealing, Sump Pumps, Crawl Space Mold Removal, Crawl Space Door Replacements, and much more. Schedule your Free Inspection today!

Air Conditioning Repair, Installation, & Service Company

Here at GSM Services, our skilled technicians can inspect your air conditioning system and provide the right services to prolong the life of your cooling system and keep your home comfortable. We provide repair and maintenance services for all brands and models of central and ductless air conditioners.

Our Air Conditioning Services Include:

• Air conditioning tune-ups & maintenance
• Air conditioning repair
• Air conditioning system replacement
• Refrigerant replacement
• Thermostat repair & replacement
• Ductless air conditioning
• Central air conditioning

Comprehensive Home Energy Audits

Our team of home energy take the time to carefully examine your home and can provide comprehensive home energy audits that identify the areas that need improvement. Once we finalize the test, we will sit with you and show you exactly what was found and giving you a prioritized list of list of home energy tasks. Our custom home energy audits allow us to help homeowners improve the overall energy efficiency of their home's and can help save you money!

Evaluations Include:

• Air Leak Inspection
• Thermal Scanning
• Detailed Explanation
• Blower Door (Infiltrometer) Test
• Insulation Level Check
• Appliance & Lighting Checks

Photo Galleries From Waco

GSM Sevices installed a thermostat in Waco, North Carolina.

Products & Services

HVAC Systems

• air conditioning company
• air conditioning systems
• central air conditioning
• ductless air conditioning
• gas furnace
• geothermal heating and cooling
• HVAC tune ups
• high-efficiency HVAC systems
• ductless heating systems
• HVAC companies
• furnace installation
• furnace repair
• air conditioning installation
• air conditioning repair
• heat pump installation
• heat pump repair

Crawl Space Repairs

• crawl space encapsulations
• crawl space vapor barrier
• crawl space cleanings
• mold removal
• dehumidifers
• crawl space inspections

Home Energy Audits

• energy efficiency audit
• air leakage testing
• blower door testing
• crawl space inspection
• attic inspection
• insulation inspection

Home Generators

• generator installation
• generator repair
• generator service

Home Insulation Services

• attic insulation
• insulation installation
• insulation inspections
• insulation removal
• insulation company
• blown in insulation
• cellulose insulation
• duct insulation
• green insulation
• insulation contractors
• pipe insulation
• reflective insulation
• rigid foam insulation
• roof insulation
• wall insulation
• window insulation
• Crawl Space Insulation
• radiant barrier insulation

Air Sealing

• sealing air leaks
• air duct leakage
• air duct sealing
• air leakage testing
• door air seal
• window air leakage

Air Duct Cleaning

• duct cleaning services
• duct disinfectant spray treatment
• air vent cleaning

Ductwork

• ductwork repair
• ductwork installation
• ductwork cost
• furnace ductwork
• HVAC ductwork
• duct cleaning

Dryer Vent Cleaning

• dryer vent cleaning services
• dryer vent replacement

Company Awards

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2025 Best Heating & Cooling Company

GSM Voted 2025 Community Choice Award Winner.

2024 Community Choice Award Winner

Voted Best Local HVAC Company in 2024.

2023 Community Choice Award Winner

Voted Best Heating & AC Company & Best Home Service Provider in the county.

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Best of Gaston 2022

GSM Services won Best Heating & Cooling Company and Top Place To Work in the County!

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Best Contractor to Work For - ACHR News

Named Best Contractor to Work For by ACHR News, a leading national industry publication in 2021.

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Top Place to Work in Charlotte

GSM was recognized as one of the Top Places to Work in 2019 by The Charlotte Observer.