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E. Dennis Heating, Cooling, Plumbing & ElectricalHVAC contractor in Marietta, GA

E. Dennis Heating, Cooling, Plumbing & Electrical is an HVAC contractor at 425 Franklin Gateway SE # 530, Marietta, GA 30067, ranked #3 of 498 HVAC contractors in Marietta and rated 4.9 from 4,846 Google reviews. Open 24 hours a day, 7 days a week.

Marietta, GAUpdated 0 paid placements in any rankingHow we rank

Call (770) 501-8620Website ↗

Key facts

Key facts about E. Dennis Heating, Cooling, Plumbing & Electrical
Address425 Franklin Gateway SE # 530, Marietta, GA 30067Get directions
Phone(770) 501-8620
Websiteedennisacinc.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 4,846 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves Marietta and 11 towns within 25 miles: Fair Oaks, Smyrna, Vinings, Sandy Springs, Kennesaw, Mableton, Dunwoody, Roswell, Woodstock, North Atlanta and Brookhaven.

Based in Marietta, GAView on map

Opening hours

Opening hours for E. Dennis Heating, Cooling, Plumbing & Electrical
DayHours
MondayOpen 24 hours
TuesdayOpen 24 hours
WednesdayOpen 24 hours
ThursdayOpen 24 hours
FridayOpen 24 hours
SaturdayOpen 24 hours
SundayOpen 24 hours
  • Open 24/7
  • Open evenings — no
  • Open Saturdays
  • Open Sundays
  • Emergency service

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

E. Dennis Heating, Cooling, Plumbing & Electrical compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
E. Dennis Heating, Cooling, Plumbing & Electrical (this business)—674.9 (4,846)—YesYes
Cool Air Mechanical#1684.9 (10,810)—YesYes4.1 mi
Coolray Heating & Air Conditioning#2674.8 (10,615)—YesYes4.1 mi
E. Smith Heating & Air Conditioning#4664.9 (1,775)—YesYes2.9 mi

See all 498 ranked HVAC contractors in Marietta

Reviews

ContractorsRanked reviews

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Google

4.9from 4,846 Google reviews

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Questions about E. Dennis Heating, Cooling, Plumbing & Electrical

How is E. Dennis Heating, Cooling, Plumbing & Electrical ranked in Marietta?

E. Dennis Heating, Cooling, Plumbing & Electrical is ranked #3 of 498 HVAC contractors in Marietta by CR Score, with 67 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are E. Dennis Heating, Cooling, Plumbing & Electrical’s hours?

E. Dennis Heating, Cooling, Plumbing & Electrical is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

What areas does E. Dennis Heating, Cooling, Plumbing & Electrical serve?

Serves Marietta and 11 towns within 25 miles: Fair Oaks, Smyrna, Vinings, Sandy Springs, Kennesaw, Mableton, Dunwoody, Roswell, Woodstock, North Atlanta and Brookhaven. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about E. Dennis Heating, Cooling, Plumbing & Electrical?

E. Dennis Heating, Cooling, Plumbing & Electrical has a rating of 4.9 from 4,846 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact E. Dennis Heating, Cooling, Plumbing & Electrical?

Call E. Dennis Heating, Cooling, Plumbing & Electrical on (770) 501-8620. The business is at 425 Franklin Gateway SE # 530, Marietta, GA 30067. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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