GHI Design&BuildGeneral contractor in Concord, CA

GHI Design&Build is a general contractor at 965 Detroit Ave, Concord, CA 94518. Open Monday to Saturday.

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Key facts

Key facts about GHI Design&Build
Address	965 Detroit Ave, Concord, CA 94518Get directions
Phone	(925) 877-5729
Website	ghidesignbuild.com
Hours	Monday: 8 AM – midnight; Tuesday: 12 AM – 8 PM; Wednesday to Saturday: 8 AM – 8 PM

Trades

Each trade shows the evidence we matched it on.

General Contractingmain tradeGoogle main category

Service area

Serves Concord and 11 towns within 25 miles: Pleasant Hill, Waldon, Contra Costa Centre, Walnut Creek, Clayton, Saranap, Bay Point, Lafayette, Alamo, Martinez and Danville.

Based in Concord, CAView on map

Opening hours

Opening hours for GHI Design&Build
Day	Hours
Monday	8 AM – midnightevening
Tuesday	12 AM – 8 PMevening
Wednesday	8 AM – 8 PMevening
Thursday	8 AM – 8 PMevening
Friday	8 AM – 8 PMevening
Saturday	8 AM – 8 PMevening
Sunday	Closed

Open evenings (after 6 PM)
Open Saturdays
Open Sundays — no

Typical general contracting prices

Typical general contracting prices
Job	Low	Typical	High
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.

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Questions about GHI Design&Build

What are GHI Design&Build’s hours?

GHI Design&Build is open Monday to Saturday. Its listed hours are Monday, 8 AM – midnight; Tuesday, 12 AM – 8 PM; Wednesday to Saturday, 8 AM – 8 PM. On Saturdays it is open 8 AM to 8 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does GHI Design&Build serve?

Serves Concord and 11 towns within 25 miles: Pleasant Hill, Waldon, Contra Costa Centre, Walnut Creek, Clayton, Saranap, Bay Point, Lafayette, Alamo, Martinez and Danville. 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.

How do I contact GHI Design&Build?

Call GHI Design&Build on (925) 877-5729. The business is at 965 Detroit Ave, Concord, CA 94518. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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