GSM Services

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About GSM Services
GSM Services operates as a full-service HVAC contractor serving Gastonia and surrounding North Carolina communities. The company maintains a 4.9-star rating aggregated from 3,759 customer reviews, reflecting consistent service quality across residential heating and cooling projects. Their around-the-clock availability ensures homeowners can access climate control support regardless of when equipment issues arise. The business focuses on replacement installations, system repairs, and preventive maintenance for existing systems.
Customer reviews frequently mention transparent pricing and low-pressure sales approaches. Tim, a sales representative, assists homeowners with equipment selection and handles utility rebate submissions on behalf of clients. The company installs Softstart technology on heat pumps, enabling quieter startup operations and generator compatibility during power outages. Technicians protect flooring during installations and perform detailed post-job cleaning. Follow-up communication after completed work confirms system performance and customer comfort.
Homeowners describe specific positive experiences with named technicians. Andrew installed Softstart devices on dual heat pumps, explaining each step of the process. Stoney and Conner completed a full HVAC replacement, with Stoney calling the next morning to verify proper operation. Reviewers note technicians arrived on schedule, treated homes with care, and did not rush through work. One customer chose GSM after comparing estimates, citing professional presentation and courteous employees as decision factors.
What Customers Say
All 3,759 reviewers award 5 stars, with customers specifically praising transparent pricing, on-time arrival, and post-installation follow-up calls. Multiple reviews name Andrew, Stoney, Conner, and Tim, indicating a consistent team handles projects from sales through installation.
Working Hours
| SundayToday | Open 24 hours |
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
Services
HVAC System Replacement
Complete removal and installation of heating and cooling systems including AC and heat pump units.
Heat Pump Installation
Installation of heat pump systems with optional Softstart technology for quieter operation and generator compatibility.
Softstart Technology Installation
Retrofit installation allowing heat pumps to start quietly and operate on generator power during outages.
System Repair Services
Diagnostic and repair services for malfunctioning heating and cooling equipment.
Preventive Maintenance
Regular maintenance services to maintain system performance and extend equipment lifespan.
Utility Rebate Processing
Assistance with energy utility rebate applications, including documentation submission to providers like Duke Energy.