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Alliance Room Addition & ADU ContractorsConcrete contractor in Atherton, CA

Alliance Room Addition & ADU Contractors is a concrete contractor at 3201 El Camino Real #776, Atherton, CA 94027, ranked #22 of 255 concrete contractors in Atherton and rated 4.9 from 48 Google reviews. Open 7 days a week.

Atherton, CAUpdated 0 paid placements in any rankingHow we rank

Call (650) 420-6626

Key facts

Key facts about Alliance Room Addition & ADU Contractors
Address3201 El Camino Real #776, Atherton, CA 94027Get directions
Phone(650) 420-6626
HoursMonday to Sunday: 5 AM – 9:30 PM
Google rating4.9 from 48 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves Atherton and 11 towns within 25 miles: North Fair Oaks, Menlo Park, Redwood City, Woodside, East Palo Alto, Stanford, San Carlos, Palo Alto, Redwood Shores, Belmont and Foster City.

Based in Atherton, CAView on map

Opening hours

Opening hours for Alliance Room Addition & ADU Contractors
DayHours
Monday5 AM – 9:30 PMevening
Tuesday5 AM – 9:30 PMevening
Wednesday5 AM – 9:30 PMevening
Thursday5 AM – 9:30 PMevening
Friday5 AM – 9:30 PMevening
Saturday5 AM – 9:30 PMevening
Sunday5 AM – 9:30 PMevening
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays

Typical concrete work prices

Typical concrete work prices
JobLowTypicalHigh
Concrete drivewayPer driveway: typical range of customer-reported projects (about $8 to $20 per sq ft). US national range$2,700$6,400$14,500

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

Compare nearby concrete contractors

Alliance Room Addition & ADU Contractors compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Alliance Room Addition & ADU Contractors (this business)—564.9 (48)—YesYes
Valley Concrete Company#20575.0 (27)—YesYes18.9 mi
Sunnyvale Asphalt Co#21565.0 (11)—YesYes11.2 mi
Walters & Wolf#23564.4 (31)———12.4 mi

See all 255 ranked concrete contractors in Atherton

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 48 Google reviews

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Questions about Alliance Room Addition & ADU Contractors

How is Alliance Room Addition & ADU Contractors ranked in Atherton?

Alliance Room Addition & ADU Contractors is ranked #22 of 255 concrete contractors in Atherton 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 Alliance Room Addition & ADU Contractors’ hours?

Alliance Room Addition & ADU Contractors is open 7 days a week. Its listed hours are Monday to Sunday, 5 AM – 9:30 PM. On Saturdays it is open 5 AM to 9:30 PM, and on Sundays 5 AM to 9:30 PM. Hours come from the business listing; holiday hours may differ.

What areas does Alliance Room Addition & ADU Contractors serve?

Serves Atherton and 11 towns within 25 miles: North Fair Oaks, Menlo Park, Redwood City, Woodside, East Palo Alto, Stanford, San Carlos, Palo Alto, Redwood Shores, Belmont and Foster City. The list is based on the business's location and the usual service radius for concrete work. Confirm your address is covered when you call.

What do Google reviews say about Alliance Room Addition & ADU Contractors?

Alliance Room Addition & ADU Contractors has a rating of 4.9 from 48 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 Alliance Room Addition & ADU Contractors?

Call Alliance Room Addition & ADU Contractors on (650) 420-6626. The business is at 3201 El Camino Real #776, Atherton, CA 94027. Ask for a written estimate before any work starts.

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