Skip to content
ContractorsRanked

Castor Star ConstructionGeneral contractor in Diamond Bar, CA

Castor Star Construction is a general contractor at 957 Silvertip Dr, Diamond Bar, CA 91765, rated 5.0 from 6 Google reviews. Open Monday to Saturday.

Diamond Bar, CA0 paid placements in any rankingHow we rank

Call (909) 999-3113Website ↗

Key facts

Key facts about Castor Star Construction
Address957 Silvertip Dr, Diamond Bar, CA 91765Get directions
Phone(909) 999-3113
Websitecastorstarconstruction.com
HoursMonday to Friday: 8 AM – 5 PM; Saturday: 8 AM – 3 PM
Google rating5.0 from 6 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • General Contractingmain tradeGoogle main category

Service area

Serves Diamond Bar and 11 towns within 25 miles: Chino Hills, Pomona, Walnut, Los Serranos, Chino, South San Jose Hills, La Verne, Rowland Heights, San Dimas, Charter Oak and Claremont.

Based in Diamond Bar, CAView on map

Opening hours

Opening hours for Castor Star Construction
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 PM
Saturday8 AM – 3 PM
SundayClosed
  • Open evenings — no
  • Open Saturdays
  • 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.

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 6 Google reviews

Hired Castor Star Construction? Write a review

Questions about Castor Star Construction

What are Castor Star Construction’s hours?

Castor Star Construction is open Monday to Saturday. Its listed hours are Monday to Friday, 8 AM – 5 PM; Saturday, 8 AM – 3 PM. On Saturdays it is open 8 AM to 3 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Castor Star Construction serve?

Serves Diamond Bar and 11 towns within 25 miles: Chino Hills, Pomona, Walnut, Los Serranos, Chino, South San Jose Hills, La Verne, Rowland Heights, San Dimas, Charter Oak and Claremont. 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 Castor Star Construction?

Castor Star Construction has a rating of 5.0 from 6 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 Castor Star Construction?

Call Castor Star Construction on (909) 999-3113. The business is at 957 Silvertip Dr, Diamond Bar, CA 91765. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

Own Castor Star Construction? 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