HVAC company · Marietta, GA

E. Dennis Heating, Cooling, Plumbing & Electrical

4.9 from 5,684 Google reviews#8 of 49 HVAC companies near Marietta Last updated Nov 1, 2026
83SCORE

About E. Dennis Heating, Cooling, Plumbing & Electrical

E. Dennis Heating, Cooling, Plumbing & Electrical serves Marietta and the western Atlanta suburbs with home and business services. Its HVAC work includes AC repair and installation, heating service, and indoor air quality solutions. Plumbing services cover repairs and other residential and commercial needs, while electrical work includes panel upgrades and repairs. The company says its certified technicians are available for emergency service and extended hours. E. Dennis also offers financing and online scheduling. Its service area extends beyond Marietta to communities including Sandy Springs, Acworth, Alpharetta, Atlanta, Austell, Canton, Cartersville, Dallas, Douglasville, and Hiram. The company reports more than 200 years of combined team experience.

At a glance

Trades
HVAC, Plumbing, Electrical
Service area
Marietta, Sandy Springs, Acworth, Alpharetta, Atlanta, Austell, Canton, Cartersville, Dallas, Douglasville, Hiram
Address
425 Franklin Gateway SE #530, Marietta, GA 30067
Highlights
Financing availableEmergency service

Services

  • AC repair
  • AC installation
  • Heating service
  • Indoor air quality
  • Plumbing repair
  • Residential plumbing
  • Commercial plumbing
  • Electrical service
  • Electrical panel upgrades
  • Electrical panel repair

How the 83 score breaks down

Rating quality40.5 / 45
Review volume25.0 / 25
Review recency15.0 / 15
Years in business2.5 / 10
Verified license0.0 / 5

Scores are calculated the same way for every company. See the method.

What customers say

5★
5,429
4★
85
3★
33
2★
21
1★
116

I have been doing business with this company for 8 years. They are local and all employees I have met have years experience with this company. That says volumes.

Google review, Oct 31, 2026

Ernesto Ferro went above and beyond for our family! He was proficient, professional and incredibly kind!!!

Google review, Oct 30, 2026

Allen was a nice and professional young man. He provided my 6 month maintenance on my HVAC system.

Google review, Oct 30, 2026

Read all 5,684 reviews on Google

Rating distribution and reviews from the company's public Google listing.

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