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One Hour Heating & Air ConditioningHVAC contractor in Fullerton, CA

One Hour Heating & Air Conditioning is an HVAC contractor at 4060 N Palm St STE. 602, Fullerton, CA 92835, ranked #36 of 1,601 HVAC contractors in Fullerton and rated 4.9 from 52 Google reviews. Open 24 hours a day, 7 days a week.

Fullerton, CAUpdated 0 paid placements in any rankingHow we rank

Call (714) 415-4342Website ↗

Key facts

Key facts about One Hour Heating & Air Conditioning
Address4060 N Palm St STE. 602, Fullerton, CA 92835Get directions
Phone(714) 415-4342
Websiteonehourheatandair.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 52 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Fullerton and 11 towns within 25 miles: Brea, La Habra, La Habra Heights, East La Mirada, Rowland Heights, Placentia, La Mirada, Buena Park, Anaheim, Hacienda Heights and South San Jose Hills.

Based in Fullerton, CAView on map

Opening hours

Opening hours for One Hour Heating & 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

One Hour Heating & Air Conditioning compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
One Hour Heating & Air Conditioning (this business)—614.9 (52)—YesYes
Next Level Heating and Cooling#34614.9 (278)—YesYes5.7 mi
Mike Diamond Plumbing, HVAC & Electrical#35614.6 (195)—YesYes4.7 mi
Happy Camper Heating, Plumbing, and AC Repair#37615.0 (341)—YesYes5.1 mi

See all 1601 ranked HVAC contractors in Fullerton

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 52 Google reviews

Hired One Hour Heating & Air Conditioning? Write a review

Questions about One Hour Heating & Air Conditioning

How is One Hour Heating & Air Conditioning ranked in Fullerton?

One Hour Heating & Air Conditioning is ranked #36 of 1,601 HVAC contractors in Fullerton by CR Score, with 61 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 One Hour Heating & Air Conditioning’s hours?

One Hour Heating & 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 One Hour Heating & Air Conditioning serve?

Serves Fullerton and 11 towns within 25 miles: Brea, La Habra, La Habra Heights, East La Mirada, Rowland Heights, Placentia, La Mirada, Buena Park, Anaheim, Hacienda Heights and South San Jose Hills. 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 One Hour Heating & Air Conditioning?

One Hour Heating & Air Conditioning has a rating of 4.9 from 52 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 One Hour Heating & Air Conditioning?

Call One Hour Heating & Air Conditioning on (714) 415-4342. The business is at 4060 N Palm St STE. 602, Fullerton, CA 92835. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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