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National Heating and Air ConditioningHVAC contractor in Cincinnati, OH

National Heating and Air Conditioning is an HVAC contractor at 5909 Stewart Ave, Cincinnati, OH 45227, ranked #15 of 376 HVAC contractors in Cincinnati and rated 4.7 from 472 Google reviews. Open 24 hours a day, 7 days a week.

Cincinnati, OHUpdated 0 paid placements in any rankingHow we rank

Call (513) 245-4460Website ↗

Key facts

Key facts about National Heating and Air Conditioning
Address5909 Stewart Ave, Cincinnati, OH 45227Get directions
Phone(513) 245-4460
Websitenationalheatingandac.com
HoursOpen 24 hours, 7 days a week
Google rating4.7 from 472 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Cincinnati and 12 towns within 25 miles: Deer Park, Madeira, Kenwood, The Village of Indian Hill, Norwood, Blue Ash, Reading, Montgomery, Turpin Hills, Wyoming, Milford and Dry Run.

Based in Cincinnati, OHView on map

Opening hours

Opening hours for National Heating and Air Conditioning
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

National Heating and Air Conditioning compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
National Heating and Air Conditioning (this business)—624.7 (472)—YesYes
Knochelmann Service Experts#13634.9 (3,584)—YesYes8.2 mi
Thomas & Galbraith Heating, Cooling, Plumbing & Electrical#14634.7 (6,967)—YesYes10.9 mi
Eco Plumbers, Electricians, and HVAC Technicians#16624.9 (3,250)—YesYes10.3 mi

See all 376 ranked HVAC contractors in Cincinnati

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.7from 472 Google reviews

Hired National Heating and Air Conditioning? Write a review

Questions about National Heating and Air Conditioning

How is National Heating and Air Conditioning ranked in Cincinnati?

National Heating and Air Conditioning is ranked #15 of 376 HVAC contractors in Cincinnati by CR Score, with 62 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 National Heating and Air Conditioning’s hours?

National Heating and Air Conditioning 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 National Heating and Air Conditioning serve?

Serves Cincinnati and 12 towns within 25 miles: Deer Park, Madeira, Kenwood, The Village of Indian Hill, Norwood, Blue Ash, Reading, Montgomery, Turpin Hills, Wyoming, Milford and Dry Run. 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 National Heating and Air Conditioning?

National Heating and Air Conditioning has a rating of 4.7 from 472 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 National Heating and Air Conditioning?

Call National Heating and Air Conditioning on (513) 245-4460. The business is at 5909 Stewart Ave, Cincinnati, OH 45227. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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