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Larsen Energy SystemsHVAC contractor in Santa Rosa, CA

Larsen Energy Systems is an HVAC contractor at 7870 Foothill Ranch Rd, Santa Rosa, CA 95404, ranked #45 of 112 HVAC contractors in Santa Rosa and rated 4.9 from 19 Google reviews. Open Monday to Friday.

Santa Rosa, CAUpdated 0 paid placements in any rankingHow we rank

Call (707) 486-3757Website ↗

Key facts

Key facts about Larsen Energy Systems
Address7870 Foothill Ranch Rd, Santa Rosa, CA 95404Get directions
Phone(707) 486-3757
Websitelarsenenergysys.com
HoursMonday to Friday: 7 AM – 6 PM
Google rating4.9 from 19 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Santa Rosa and 11 towns within 25 miles: Larkfield-Wikiup, Calistoga, Windsor, Roseland, Saint Helena, Sebastopol, Healdsburg, Rohnert Park, Cotati, Boyes Hot Springs and Sonoma.

Based in Santa Rosa, CAView on map

Opening hours

Opening hours for Larsen Energy Systems
DayHours
Monday7 AM – 6 PM
Tuesday7 AM – 6 PM
Wednesday7 AM – 6 PM
Thursday7 AM – 6 PM
Friday7 AM – 6 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

Larsen Energy Systems compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Larsen Energy Systems (this business)—564.9 (19)—NoNo
Constantini's Heating & Air Conditioning Service#43565.0 (6)———2.5 mi
Apes Plumbing Heating Sewer and Drain Services#44564.9 (90)—YesNo18.9 mi
Hulbert Heating & Air Conditioning Inc#46565.0 (54)—NoNo13.1 mi

See all 112 ranked HVAC contractors in Santa Rosa

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 19 Google reviews

Hired Larsen Energy Systems? Write a review

Questions about Larsen Energy Systems

How is Larsen Energy Systems ranked in Santa Rosa?

Larsen Energy Systems is ranked #45 of 112 HVAC contractors in Santa Rosa by CR Score, with 56 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 Larsen Energy Systems’ hours?

Larsen Energy Systems is open Monday to Friday. Its listed hours are Monday to Friday, 7 AM – 6 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Larsen Energy Systems serve?

Serves Santa Rosa and 11 towns within 25 miles: Larkfield-Wikiup, Calistoga, Windsor, Roseland, Saint Helena, Sebastopol, Healdsburg, Rohnert Park, Cotati, Boyes Hot Springs and Sonoma. 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 Larsen Energy Systems?

Larsen Energy Systems has a rating of 4.9 from 19 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 Larsen Energy Systems?

Call Larsen Energy Systems on (707) 486-3757. The business is at 7870 Foothill Ranch Rd, Santa Rosa, CA 95404. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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