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AIS Heating & Air ConditioningHVAC contractor in Fremont, CA

AIS Heating & Air Conditioning is an HVAC contractor at 4432 Enterprise St suite a, Fremont, CA 94538, ranked #2 of 621 HVAC contractors in Fremont and rated 4.9 from 723 Google reviews. Open 24 hours a day, 7 days a week.

Fremont, CAUpdated 0 paid placements in any rankingHow we rank

Call (510) 738-0252Website ↗

Key facts

Key facts about AIS Heating & Air Conditioning
Address4432 Enterprise St suite a, Fremont, CA 94538Get directions
Phone(510) 738-0252
Websiteaisheatingandair.com
HoursOpen 24 hours, 7 days a week
Google rating4.9 from 723 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Fremont and 11 towns within 25 miles: Newark, Milpitas, Union City, Sunnyvale, Santa Clara, East Palo Alto, Mountain View, Palo Alto, East Foothills, Los Altos and San Jose.

Based in Fremont, CAView on map

Opening hours

Opening hours for AIS 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

AIS Heating & Air Conditioning compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
AIS Heating & Air Conditioning (this business)—654.9 (723)—YesYes
Heating And Air Experts - Affordable HVAC Contractor in Fremont, California#1665.0 (761)—YesYes0.9 mi
Jazz Heating, Air Conditioning and Plumbing#3654.9 (3,438)—YesYes13.5 mi
Service Champions#4654.9 (3,407)—YesYes7.8 mi

See all 621 ranked HVAC contractors in Fremont

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 723 Google reviews

Hired AIS Heating & Air Conditioning? Write a review

Questions about AIS Heating & Air Conditioning

How is AIS Heating & Air Conditioning ranked in Fremont?

AIS Heating & Air Conditioning is ranked #2 of 621 HVAC contractors in Fremont by CR Score, with 65 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 AIS Heating & Air Conditioning’s hours?

AIS 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 AIS Heating & Air Conditioning serve?

Serves Fremont and 11 towns within 25 miles: Newark, Milpitas, Union City, Sunnyvale, Santa Clara, East Palo Alto, Mountain View, Palo Alto, East Foothills, Los Altos and San Jose. 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 AIS Heating & Air Conditioning?

AIS Heating & Air Conditioning has a rating of 4.9 from 723 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 AIS Heating & Air Conditioning?

Call AIS Heating & Air Conditioning on (510) 738-0252. The business is at 4432 Enterprise St suite a, Fremont, CA 94538. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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