Double j constructionGeneral contractor in Ontario, CA

Double j construction is a general contractor at 307 E F St, Ontario, CA 91764. Open 24 hours a day, 7 days a week.

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Key facts

Key facts about Double j construction
Address	307 E F St, Ontario, CA 91764Get directions
Phone	(909) 201-6890
Hours	Open 24 hours, 7 days a week

Trades

Each trade shows the evidence we matched it on.

General Contractingmain tradeGoogle main category

Service area

Serves Ontario and 11 towns within 25 miles: Upland, Montclair, Rancho Cucamonga, Claremont, Chino, Pomona, La Verne, Los Serranos, Chino Hills, Eastvale and Jurupa Valley.

Based in Ontario, CAView on map

Opening hours

Opening hours for Double j construction
Day	Hours
Monday	Open 24 hours
Tuesday	Open 24 hours
Wednesday	Open 24 hours
Thursday	Open 24 hours
Friday	Open 24 hours
Saturday	Open 24 hours
Sunday	Open 24 hours

Open 24/7
Open evenings — no
Open Saturdays
Open Sundays
Emergency service

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 Double j construction

What are Double j construction’s hours?

Double j construction is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

What areas does Double j construction serve?

Serves Ontario and 11 towns within 25 miles: Upland, Montclair, Rancho Cucamonga, Claremont, Chino, Pomona, La Verne, Los Serranos, Chino Hills, Eastvale and Jurupa Valley. 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 Double j construction?

Call Double j construction on (909) 201-6890. The business is at 307 E F St, Ontario, CA 91764. Ask for a written estimate before any work starts.

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