Best HVAC in Marietta, GA (2026)
Last updated: May 2026
Marietta has the widest HVAC contractor coverage of any city in our North Atlanta market — Cobb County's size and density means strong competition among local companies. Innovative Mechanical is Marietta-based (Cumberland Point Dr) and handles both HVAC and solar. Reliable Heating and Air, one of Atlanta's most recognized HVAC companies since 1978, serves Marietta extensively. North Atlanta's summer heat is felt strongly here — 47 days above 90°F with high humidity. Spring and fall maintenance visits prevent summer and winter emergency calls.
Reliable Heating and Air
4.3/5 · 999 reviews (Best Pick Reports) · Verified Marietta reviewsSince 1978 | Award-winning | Strong Marietta presence · From $89 tune-up
Reliable service, transparent pricing, and consistently strong reviews from Marietta customers.
See this contractor →Compare top providers
| Provider | Monthly cost | Details | Why we recommend | Link |
|---|---|---|---|---|
| Innovative Mechanical | From $89 tune-up | Marietta-based | HVAC + solar | 50+ yrs combined experience | Marietta-based (Cumberland Point Dr) · 50+ yrs combined experience | View → |
| Reliable Heating and Air | From $89 tune-up | Since 1978 | Award-winning | Strong Marietta presence | 4.3/5 · 999 reviews (Best Pick Reports) · Verified Marietta reviews | View → |
Credentials verified June 2026 via BBB, TrustDALE, Best Pick Reports, Carrier Factory Authorization, and Google Reviews.
Pros & cons: Reliable Heating and Air
Pros
- Nearly 50 years serving Marietta area
- Multiple customer service awards
- Comprehensive maintenance plans
Cons
- High demand in summer — book spring maintenance in March
- Larger company than neighborhood-level firms
Frequently asked questions
Find Google Guaranteed HVAC contractors in Marietta
Google Guaranteed contractors have passed Google's background check process and carry verified reviews. Click below to see licensed, background-checked HVAC companies serving Marietta, GA.
Search Google Guaranteed contractors →Ready to compare?
Need HVAC service in Marietta? Find Google Guaranteed, background-checked contractors near you.
Find local contractors →