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Phantom BuildersGeneral contractor in Castro Valley, CA

Phantom Builders is a general contractor in Castro Valley, CA, rated 4.9 from 10 Google reviews.

Castro Valley, CA0 paid placements in any rankingHow we rank

Call (510) 935-2185Website ↗

Key facts

Key facts about Phantom Builders
Phone(510) 935-2185
Websitephantombuilders.co
Google rating4.9 from 10 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • General Contractingmain tradebusiness name

Service area

Serves Castro Valley and 11 towns within 25 miles: Union City, Hayward, Fairview, Cherryland, San Lorenzo, Ashland, Newark, Fremont, San Leandro, Dublin and East Palo Alto.

Based in Castro Valley, CAView on map

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.

Reviews

ContractorsRanked reviews

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Google

4.9from 10 Google reviews

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Questions about Phantom Builders

What areas does Phantom Builders serve?

Serves Castro Valley and 11 towns within 25 miles: Union City, Hayward, Fairview, Cherryland, San Lorenzo, Ashland, Newark, Fremont, San Leandro, Dublin and East Palo Alto. 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 Phantom Builders?

Phantom Builders has a rating of 4.9 from 10 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 Phantom Builders?

Call Phantom Builders on (510) 935-2185. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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