Skip to content
ContractorsRanked

Underscore Design + BuildGeneral contractor in Petaluma, CA

Underscore Design + Build is a general contractor at 215 Sunnyslope Ave, Petaluma, CA 94952, ranked #35 of 315 general contractors in Petaluma and rated 5.0 from 9 Google reviews. Open Monday to Friday.

Petaluma, CAUpdated 0 paid placements in any rankingHow we rank

Call (707) 785-6595Website ↗

Key facts

Key facts about Underscore Design + Build
Address215 Sunnyslope Ave, Petaluma, CA 94952Get directions
Phone(707) 785-6595
Websiteunderscore.build
HoursMonday to Friday: 7 AM – 3 PM
Google rating5.0 from 9 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves Petaluma and 11 towns within 25 miles: Cotati, Rohnert Park, Novato, Boyes Hot Springs, Sonoma, Lucas Valley-Marinwood, Roseland, Santa Rosa, Sebastopol, Fairfax and San Anselmo.

Based in Petaluma, CAView on map

Opening hours

Opening hours for Underscore Design + Build
DayHours
Monday7 AM – 3 PM
Tuesday7 AM – 3 PM
Wednesday7 AM – 3 PM
Thursday7 AM – 3 PM
Friday7 AM – 3 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical general contracting prices

Typical general contracting prices
JobLowTypicalHigh
Kitchen remodelPer project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.04 Pacific factor (2025 Cost vs. Value Report)$15,240$28,190$43,470
Bathroom remodelPer bathroom: typical range of customer-reported remodels. US national range × 1.06 Pacific factor (2025 Cost vs. Value Report)$7,050$12,880$18,720

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby general contractors

Underscore Design + Build compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Underscore Design + Build (this business)—555.0 (9)—NoNo
Superior Supplies, Inc.#33554.7 (24)—YesNo16.3 mi
Aggo Construction#34554.8 (4)—YesNo20.4 mi
In Service Builders#36555.0 (4)—YesYes8.2 mi

See all 315 ranked general contractors in Petaluma

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 9 Google reviews

Hired Underscore Design + Build? Write a review

Questions about Underscore Design + Build

How is Underscore Design + Build ranked in Petaluma?

Underscore Design + Build is ranked #35 of 315 general contractors in Petaluma by CR Score, with 55 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 Underscore Design + Build’s hours?

Underscore Design + Build is open Monday to Friday. Its listed hours are Monday to Friday, 7 AM – 3 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Underscore Design + Build serve?

Serves Petaluma and 11 towns within 25 miles: Cotati, Rohnert Park, Novato, Boyes Hot Springs, Sonoma, Lucas Valley-Marinwood, Roseland, Santa Rosa, Sebastopol, Fairfax and San Anselmo. The list is based on the business's location and the usual service radius for general contracting. Confirm your address is covered when you call.

What do Google reviews say about Underscore Design + Build?

Underscore Design + Build has a rating of 5.0 from 9 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 Underscore Design + Build?

Call Underscore Design + Build on (707) 785-6595. The business is at 215 Sunnyslope Ave, Petaluma, CA 94952. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

Own Underscore Design + Build? Claim this profile.

Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.

Claim this profile