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Uni Construction + DesignGeneral contractor in Diamond Bar, CA

Uni Construction + Design is a general contractor at 1142 S Diamond Bar Blvd, Diamond Bar, CA 91765, ranked #17 of 1,243 general contractors in Diamond Bar and rated 5.0 from 14 Google reviews. Open 7 days a week.

Diamond Bar, CAUpdated 0 paid placements in any rankingHow we rank

Call (213) 282-8212Website ↗

Key facts

Key facts about Uni Construction + Design
Address1142 S Diamond Bar Blvd, Diamond Bar, CA 91765Get directions
Phone(213) 282-8212
Websiteuni-cm.com
HoursMonday to Sunday: 9 AM – 5 PM
Google rating5.0 from 14 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

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

Based in Diamond Bar, CAView on map

Opening hours

Opening hours for Uni Construction + Design
DayHours
Monday9 AM – 5 PM
Tuesday9 AM – 5 PM
Wednesday9 AM – 5 PM
Thursday9 AM – 5 PM
Friday9 AM – 5 PM
Saturday9 AM – 5 PM
Sunday9 AM – 5 PM
  • Open evenings — no
  • Open Saturdays
  • Open Sundays

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

Uni Construction + Design compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Uni Construction + Design (this business)—575.0 (14)—YesYes
Cloud City Construction Inc.#15575.0 (20)—YesYes8.4 mi
Palm Construction#16574.8 (154)—NoYes9.1 mi
Fitzhauer Construction Inc.#18574.9 (433)—NoNo10.4 mi

See all 1243 ranked general contractors in Diamond Bar

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 14 Google reviews

Hired Uni Construction + Design? Write a review

Questions about Uni Construction + Design

How is Uni Construction + Design ranked in Diamond Bar?

Uni Construction + Design is ranked #17 of 1,243 general contractors in Diamond Bar by CR Score, with 57 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 Uni Construction + Design’s hours?

Uni Construction + Design is open 7 days a week. Its listed hours are Monday to Sunday, 9 AM – 5 PM. On Saturdays it is open 9 AM to 5 PM, and on Sundays 9 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

What areas does Uni Construction + Design serve?

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

Uni Construction + Design has a rating of 5.0 from 14 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 Uni Construction + Design?

Call Uni Construction + Design on (213) 282-8212. The business is at 1142 S Diamond Bar Blvd, Diamond Bar, CA 91765. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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