GSM Services
Gastonia, NC Indoor Air Quality · #3 of 4 · 99+ yrs
ⓘVouched Score is calculated from publicly available signals: Google rating & review count, Yelp rating, BBB grade, review sentiment, years in business, local search ranking, and provider website content. Not a guarantee of service quality.Embed this score
At a glance
- Google rating
- 4.9★ from 3,765+ reviews
- In business
- 99+ years
- Yelp
- 3.3★ from 30+ reviews
- Services
- 1 Indoor Air Quality service
- Service area
- Gastonia, NC + 1 nearby
Overview
Editorial review
ERV/HRV ventilation systems and whole-home humidity control are listed under specializations. GSM Services notes family ownership since 1927. The company advertises free estimates and instant online quotes. Gastonia homeowners face humid summers, so dehumidification and ventilation matter locally. Reviews show frequent praise for fast repairs and transparent pricing.
Whole-home IAQ installs in Gastonia, focusing on ERV/HRV ventilation and humidity control. ERV/HRV ventilation is listed under their specializations. Family-owned since 1927, with long local tenure. The site advertises free estimates and instant online quotes.
Vouched Score breakdown — 79/100
Gastonia, NC Indoor Air Quality average is 82/100. Ranks #3 of 4 listed Indoor Air Quality providers in Gastonia, NC.
Editorial Review
76
44%
Yelp Rating
58
3%
Google Rating
97
16%
Local Search Rank
92
9%
Review Sentiment
50
14%
Years in Business
100
4%
Google Review Volume
97
9%
Composite of public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment of provider profile. See full methodology →
How GSM Services compares to the Gastonia average
| Signal | GSM Services | Gastonia avg | Delta |
|---|---|---|---|
| Vouched Score | 79/100 | 82/100 | -3 vs avg |
| Google rating | 4.9★ | 4.9★ | matches city average |
| Review volume | 3,765+ | 1,570+ | +2196 vs avg |
| Years in business | 99+ | 54+ | +44 vs avg |
What customers say
Where they stand on this page:
Largest review base on the page (3,765+ reviews vs next 1,148)
Pros & cons
Pros
Verified strengths
- High Google rating (4.9★ across 3,765+ reviews)
- Long-established (99+ years in business)
Self-reported on their website — not independently verified.
- Emergency response: 24/7
- Financing available
- Free estimates
- Flat-rate, upfront pricing
punctualitytransparent pricingfast repairsclean job sites
Cons
- Lower Yelp rating than Google (3.3★ vs 4.9★)
- Mixed customer sentiment (score 50/100)
yelp low ratingrating divergence
When to choose them — and when to consider alternatives
Choose them if
- You need same-day or after-hours service
- You need to finance the work
- You prefer a family-owned operation
- You want a top-rated provider with substantial review history (4.9★, 3,765+ reviews)
- You value a long-tenured local operator (99+ years in business)
Consider alternatives if
- Reports of rating divergence would be a deal-breaker for you
- Reports of yelp low rating would be a deal-breaker for you
- You want a BBB-rated firm specifically
Services
- Emergency HVAC Service
Service area
Gastonia, NC home · Services Gastonia, NC home
What GSM Services publishes about pricing
Pricing model
-
Upfront pricing
As published: Upfront pricing"…icians deliver fast, reliable service and honest, upfront pricing. We're proud to have been voted Best HVAC Company…" -
No hidden fees
As published: No hidden fees"…solutions, and offer clear, upfront pricing with no hidden fees. We also include a free service call with any rep…"
Estimates
-
Free estimates
As published: Free estimates"…’s why we provide you with plenty of ways to save Free Quotes We offer free consultations and no-obligation quo…"
Guarantees & credentials
- Licensed and Insured
- Licensed
Sourced from the provider's own website. We surface these as published; we do not independently verify each license or warranty.
Contact & hours
Frequently asked questions
What are the pros of GSM Services?
Based on public records and customer reviews: High Google rating (4.9★ across 3,765+ reviews); Long-established (99+ years in business); Emergency response: 24/7; Financing available; Free estimates; Flat-rate, upfront pricing.
What are the cons of GSM Services?
Concerns flagged from public records and reviews: Lower Yelp rating than Google (3.3★ vs 4.9★); Mixed customer sentiment (score 50/100).
When should I choose GSM Services?
Choose them if: You need same-day or after-hours service; You need to finance the work; You prefer a family-owned operation; You want a top-rated provider with substantial review history (4.9★, 3,765+ reviews); You value a long-tenured local operator (99+ years in business).
When should I consider alternatives to GSM Services?
Consider alternatives if: Reports of rating divergence would be a deal-breaker for you; Reports of yelp low rating would be a deal-breaker for you; You want a BBB-rated firm specifically.
What is the Vouched Score for GSM Services?
79/100. Top contributing signals: Years In Business 100/100, Google Rating 97/100, Google Review Count 97/100. The score blends public-record signals (BBB, license records), customer review signals (Google, Yelp), and editorial assessment.
How long has GSM Services been in business?
GSM Services has been operating for 99+ years in Gastonia, NC.
What does indoor air quality service typically cost when working with a Gastonia, NC provider like GSM Services?
Whole-house HEPA air purifier typically runs $1,300–$3,500, and UV-C germicidal lamp runs $260–$1,050 in Gastonia, North Carolina. These are area-wide market estimates, not GSM Services's quotes. For an exact price, request a written estimate from GSM Services.
What pricing terms does GSM Services publish on their website?
GSM Services's website publishes: Upfront pricing, Free estimates. Promotions and plans change — confirm currently-available terms with GSM Services before acting.
Does GSM Services do Emergency HVAC Service in Gastonia, NC?
Yes. GSM Services lists Emergency HVAC Service among its services and serves Gastonia, NC and Services Gastonia, NC.
Compare with nearby providers
| Provider | Vouched | Years | BBB | Yelp | Our picks | |
|---|---|---|---|---|---|---|
GSM Services (this company) |
79/100 | 4.9★ (3,765+) | 99+ | — | 3.3★ | — |
| 86/100 | 4.9★ (1,145+) | 53+ | — | — | Highest Vouched Score Best for Humidity Control |
|
| 79/100 | 4.9★ (500+) | 47+ | — | 3.9★ | — | |
| 84/100 | 4.9★ (870+) | 19+ | — | — | — |
Listed in
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Profile last updated July 5, 2026.