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Spruce ADU Builders South San FranciscoHome builder in South San Francisco, CA

Spruce ADU Builders South San Francisco is a home builder at 405 Allerton Ave, South San Francisco, CA 94080, ranked #8 of 476 home builders in South San Francisco and rated 5.0 from 3 Google reviews. Open 24 hours a day, 7 days a week.

South San Francisco, CAUpdated 0 paid placements in any rankingHow we rank

Call (951) 612-7160Website ↗

Key facts

Key facts about Spruce ADU Builders South San Francisco
Address405 Allerton Ave, South San Francisco, CA 94080Get directions
Phone(951) 612-7160
Websitespruceadubuilders.com
HoursOpen 24 hours, 7 days a week
Google rating5.0 from 3 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves South San Francisco and 11 towns within 40 miles: San Bruno, Millbrae, Visitacion Valley, Burlingame, Daly City, Hillsborough, Pacifica, Noe Valley, San Mateo, Mission District and San Francisco.

Based in South San Francisco, CAView on map

Opening hours

Opening hours for Spruce ADU Builders South San Francisco
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

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 3 Google reviews

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Questions about Spruce ADU Builders South San Francisco

How is Spruce ADU Builders South San Francisco ranked in South San Francisco?

Spruce ADU Builders South San Francisco is ranked #8 of 476 home builders in South San Francisco by CR Score, with 57 out of 100 as of November 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 Spruce ADU Builders South San Francisco’s hours?

Spruce ADU Builders South San Francisco 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 Spruce ADU Builders South San Francisco serve?

Serves South San Francisco and 11 towns within 40 miles: San Bruno, Millbrae, Visitacion Valley, Burlingame, Daly City, Hillsborough, Pacifica, Noe Valley, San Mateo, Mission District and San Francisco. The list is based on the business's location and the usual service radius for home building. Confirm your address is covered when you call.

What do Google reviews say about Spruce ADU Builders South San Francisco?

Spruce ADU Builders South San Francisco has a rating of 5.0 from 3 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 Spruce ADU Builders South San Francisco?

Call Spruce ADU Builders South San Francisco on (951) 612-7160. The business is at 405 Allerton Ave, South San Francisco, CA 94080. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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

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Compare nearby home builders

Spruce ADU Builders South San Francisco compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Spruce ADU Builders South San Francisco (this business)—575.0 (3)—YesYes
HomeShield Pest Control#6584.9 (549)—YesNo9.3 mi
The San Francisco Shipyard#7584.2 (141)—YesYes5.1 mi
HomeShield Pest Control#9574.9 (1,832)—YesNo25.1 mi

See all 476 ranked home builders in South San Francisco