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ContractorsRanked

John Sylvain DesignGeneral contractor in Vallejo, CA

John Sylvain Design is a general contractor in Vallejo, CA, rated 5.0 from 1 Google review. Open Monday to Friday.

Vallejo, CA0 paid placements in any rankingHow we rank

Call (707) 980-0116

Key facts

Key facts about John Sylvain Design
Phone(707) 980-0116
HoursMonday to Friday: 8 AM – 7 PM
Google rating5.0 from 1 Google review

Trades

Each trade shows the evidence we matched it on.

  • General Contractingmain tradeGoogle main category
  • Home Builderadditional Google category

Service area

Serves Vallejo and 11 towns within 25 miles: American Canyon, Rodeo, Hercules, Pinole, Tara Hills, El Sobrante, Benicia, San Pablo, Napa, Novato and Sonoma.

Based in Vallejo, CAView on map

Opening hours

Opening hours for John Sylvain Design
DayHours
Monday8 AM – 7 PMevening
Tuesday8 AM – 7 PMevening
Wednesday8 AM – 7 PMevening
Thursday8 AM – 7 PMevening
Friday8 AM – 7 PMevening
SaturdayClosed
SundayClosed
  • Open evenings (after 6 PM)
  • Open Saturdays — no
  • 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

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Google

5.0from 1 Google reviews

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Questions about John Sylvain Design

What are John Sylvain Design’s hours?

John Sylvain Design is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 7 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does John Sylvain Design serve?

Serves Vallejo and 11 towns within 25 miles: American Canyon, Rodeo, Hercules, Pinole, Tara Hills, El Sobrante, Benicia, San Pablo, Napa, Novato and Sonoma. 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 John Sylvain Design?

John Sylvain Design has a rating of 5.0 from 1 Google review. 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.

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