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All Phase Heating & Air ConditioningHVAC contractor in Grass Valley, CA

All Phase Heating & Air Conditioning is an HVAC contractor at 731 S Auburn St, Grass Valley, CA 95945, ranked #10 of 43 HVAC contractors in Grass Valley and rated 4.9 from 145 Google reviews. Open Monday to Friday.

Grass Valley, CAUpdated 0 paid placements in any rankingHow we rank

Call (530) 274-9955Website ↗

Key facts

Key facts about All Phase Heating & Air Conditioning
Address731 S Auburn St, Grass Valley, CA 95945Get directions
Phone(530) 274-9955
Websiteallphasecomfort.com
HoursMonday to Friday: 8 AM – 5 PM
Google rating4.9 from 145 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Grass Valley and 3 towns within 25 miles: North Auburn, Auburn and Lincoln.

Based in Grass Valley, CAView on map

Opening hours

Opening hours for All Phase Heating & Air Conditioning
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

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

All Phase Heating & Air Conditioning compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
All Phase Heating & Air Conditioning (this business)—604.9 (145)—NoNo
Omid Heating & Air Conditioning#8605.0 (24)—YesYes22.8 mi
ABT Plumbing, Electric, Heat & Air#9604.8 (973)—YesYes0.1 mi
ABT Plumbing, Electric, Heat & Air#11594.9 (346)—YesYes19.8 mi

See all 43 ranked HVAC contractors in Grass Valley

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 145 Google reviews

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Questions about All Phase Heating & Air Conditioning

How is All Phase Heating & Air Conditioning ranked in Grass Valley?

All Phase Heating & Air Conditioning is ranked #10 of 43 HVAC contractors in Grass Valley by CR Score, with 60 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 All Phase Heating & Air Conditioning’s hours?

All Phase Heating & Air Conditioning is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does All Phase Heating & Air Conditioning serve?

Serves Grass Valley and 3 towns within 25 miles: North Auburn, Auburn and Lincoln. 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 All Phase Heating & Air Conditioning?

All Phase Heating & Air Conditioning has a rating of 4.9 from 145 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 All Phase Heating & Air Conditioning?

Call All Phase Heating & Air Conditioning on (530) 274-9955. The business is at 731 S Auburn St, Grass Valley, CA 95945. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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