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Johnston General EngineeringConcrete contractor in Napa, CA

Johnston General Engineering is a concrete contractor at 3599 Twin Oaks Dr, Napa, CA 94558, ranked #11 of 120 concrete contractors in Napa and rated 4.3 from 6 Google reviews. Open Monday to Saturday.

Napa, CAUpdated 0 paid placements in any rankingHow we rank

Call (707) 337-8032Website ↗

Key facts

Key facts about Johnston General Engineering
Address3599 Twin Oaks Dr, Napa, CA 94558Get directions
Phone(707) 337-8032
Websitejohnstonexcavation.com
HoursMonday to Friday: 7 AM – 5 PM; Saturday: 8 AM – 5 PM
Google rating4.3 from 6 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • Concretemain tradeGoogle main category
  • Landscapingadditional Google category
  • Demolitionadditional Google category

Service area

Serves Napa and 11 towns within 25 miles: Sonoma, Boyes Hot Springs, American Canyon, Vallejo, Saint Helena, Petaluma, Fairfield, Suisun, Novato, Rodeo and Rohnert Park.

Based in Napa, CAView on map

Opening hours

Opening hours for Johnston General Engineering
DayHours
Monday7 AM – 5 PM
Tuesday7 AM – 5 PM
Wednesday7 AM – 5 PM
Thursday7 AM – 5 PM
Friday7 AM – 5 PM
Saturday8 AM – 5 PM
SundayClosed
  • Open evenings — no
  • Open Saturdays
  • Open Sundays — no

Typical concrete work prices

Typical concrete work prices
JobLowTypicalHigh
Concrete drivewayPer driveway: typical range of customer-reported projects (about $8 to $20 per sq ft). US national range$2,700$6,400$14,500

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby concrete contractors

Johnston General Engineering compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Johnston General Engineering (this business)—554.3 (6)—YesNo
J&C Concrete Restoration Inc.#9555.0 (46)—NoNo12.1 mi
Innovative Concrete Solutions Inc#10555.0 (26)—YesNo15.8 mi
NorCal Foundation Support#12544.1 (31)—NoNo5.7 mi

See all 120 ranked concrete contractors in Napa

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.3from 6 Google reviews

Hired Johnston General Engineering? Write a review

Questions about Johnston General Engineering

How is Johnston General Engineering ranked in Napa?

Johnston General Engineering is ranked #11 of 120 concrete contractors in Napa by CR Score, with 55 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 Johnston General Engineering’s hours?

Johnston General Engineering is open Monday to Saturday. Its listed hours are Monday to Friday, 7 AM – 5 PM; Saturday, 8 AM – 5 PM. On Saturdays it is open 8 AM to 5 PM and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Johnston General Engineering serve?

Serves Napa and 11 towns within 25 miles: Sonoma, Boyes Hot Springs, American Canyon, Vallejo, Saint Helena, Petaluma, Fairfield, Suisun, Novato, Rodeo and Rohnert Park. The list is based on the business's location and the usual service radius for concrete work. Confirm your address is covered when you call.

What do Google reviews say about Johnston General Engineering?

Johnston General Engineering has a rating of 4.3 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 Johnston General Engineering?

Call Johnston General Engineering on (707) 337-8032. The business is at 3599 Twin Oaks Dr, Napa, CA 94558. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.

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