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ContractorsRanked

Best General Contractors in San Lorenzo, CA (2026)

1,180 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in San Lorenzo: Closets by Design - Northern California, CR Score 66/100; 4.8★ from 998 Google reviews; open 7 days a week.

  2. 2

    Best for emergencies (open 24/7): Ocean Remodel, posts 24/7 hours; ranked #2 of 1,180.

  3. 3

    Most-reviewed: Closet World - Northern California, 775 Google reviews at 4.4★, the most of 1,180 ranked after Closets by Design - Northern California; ranked #3.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

1,180 San Lorenzo general contractors are ranked here by CR Score, from ten published factors. 67 are open 24/7, 439 open Saturdays and 231 open Sundays, based on posted hours. The median Google rating is 5.0★ across 1,180 rated businesses.

Top 10 general contractors in San Lorenzo at a glance

Top 10 general contractors in San Lorenzo at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Closets by Design - Northern California664.8★ (998)Hayward, 2 mi awaySat · Sun · EveningsOverall
2Ocean Remodel634.9★ (107)Castro Valley, 2 mi away24/7Emergencies
3Closet World - Northern California634.4★ (775)Hayward, 2 mi awaySat · Sun · EveningsMost reviews
4R & S Erection North Peninsula625.0★ (233)South San Francisco, 16 mi away24/7—
5Method Remodeling General Contractor605.0★ (69)Burlingame, 13 mi away24/7—
6Ehret Co Plumbing & Heating604.6★ (52)Oakland, 7 mi away24/7—
7Lockworks Unlimited604.7★ (144)Redwood City, 15 mi away24/7—
8GMBC Construction Inc594.7★ (50)Hayward, 3 mi awaySat · Sun—
9Synergy Enterprises594.8★ (341)Hayward, 5 mi away——
10MasterPro Installs594.9★ (163)San Leandro, 2 mi away——

The 1,180 best general contractors in San Lorenzo, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 Ocean Remodel

    Based in Castro Valley, 2 mi away

    63/100CR Score

    Ranked #2 because of its Google rating and trade focus: 4.9★ from 107 Google reviews, listed on Google as “General contractor”.

    • 4.9★ from 107 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2811 Castro Valley Blvd #111, Castro Valley, CA 94546
    View profile for Ocean Remodel(510) 520-9934

  7. #7 Lockworks Unlimited

    Based in Redwood City, 15 mi away

    60/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.7★ from 144 Google reviews, listed on Google as “Contractor”.

    • 4.7★ from 144 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2671 El Camino Real, Redwood City, CA 94061
    View profile for Lockworks Unlimited(650) 299-9126

  9. #9 Synergy Enterprises

    Based in Hayward, 5 mi away

    59/100CR Score

    Ranked #9 because of its Google rating and trade focus: 4.8★ from 341 Google reviews, listed on Google as “Contractor”.

    • 4.8★ from 341 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    28436 Satellite St, Hayward, CA 94545
    View profile for Synergy Enterprises(510) 259-1700

  10. #10 MasterPro Installs

    Based in San Leandro, 2 mi away

    59/100CR Score

    Ranked #10 because of its Google rating and trade focus: 4.9★ from 163 Google reviews, listed on Google as “Contractor”.

    • 4.9★ from 163 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat–Sun closed
    Address
    3055 Alvarado St Ste 127, San Leandro, CA 94577
    View profile for MasterPro Installs(510) 588-5058

  12. #12 Y Group Remodeling

    Based in San Ramon, 11 mi away

    59/100CR Score

    Ranked #12 because of its Google rating and trade focus: 4.8★ from 85 Google reviews, listed on Google as “Construction company”.

    • 4.8★ from 85 Google reviews
    Hours
    Mon–Sun 7 AM–8 PM
    Address
    2010 Crow Canyon Pl Suite 100, San Ramon, CA 94583
    View profile for Y Group Remodeling(510) 899-1053

  18. #18 Wellmade

    Based in San Leandro, 3 mi away

    58/100CR Score

    Ranked #18 because of its Google rating and trade focus: 5.0★ from 110 Google reviews, listed on Google as “Construction company”.

    • 5.0★ from 110 Google reviews
    Hours
    Mon–Fri 9 AM–5 PM · Sat–Sun closed
    Address
    2371 Verna Ct, San Leandro, CA 94577
    View profile for Wellmade(510) 606-1706

  22. #22 A Tamam Construction

    Based in Fremont, 14 mi away

    58/100CR Score

    Ranked #22 because of its Google rating and trade focus: 4.9★ from 167 Google reviews, listed on Google as “Construction company”.

    • 4.9★ from 167 Google reviews
    Hours
    Mon–Fri 9 AM–6 PM · Sat closed · Sun 9 AM–4 PM
    Address
    41060 High St, Fremont, CA 94538
    View profile for A Tamam Construction(408) 478-3111

  24. #24 Geico Builders

    Based in Oakland, 12 mi away

    58/100CR Score

    Ranked #24 because of its Google rating and trade focus: 5.0★ from 87 Google reviews, listed on Google as “General contractor”.

    • 5.0★ from 87 Google reviews
    Hours
    Mon–Fri 9 AM–7 PM · Sat closed · Sun 9 AM–6 PM
    Address
    1901 Harrison St Ste 1100, Oakland, CA 94612
    View profile for Geico Builders(510) 800-6202

  25. #25 Sky Automatic Gates

    Based in Pleasanton, 12 mi away

    58/100CR Score

    Ranked #25 because of its Google rating and trade focus: 4.9★ from 22 Google reviews, listed on Google as “General contractor”.

    • 4.9★ from 22 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    4900 Hopyard Rd Suit 100, Pleasanton, CA 94588
    View profile for Sky Automatic Gates(925) 453-0009

General contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 1,180 ranked general contractors here; the rest are on their profiles.

general contractors in San Lorenzo, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26CSA Home and Business Services585.0★ (58)21 mi
27PTR REMODELING SERVICES585.0★ (22)13 mi
28The Container Store584.4★ (336)17 mi
29Renovation Sells East Bay575.0★ (27)15 mi
30Sima574.3★ (11)5 mi
31THE HOUSE DOCTOR INC.575.0★ (23)14 mi
32United Constructors Inc.574.9★ (48)13 mi
33Inspired Builders Inc575.0★ (116)22 mi
34AGH Commercial Inc.574.9★ (47)13 mi
35My Pure Environment575.0★ (212)15 mi
36LRL Builders, Inc.575.0★ (24)15 mi
37AIF Construction Inc575.0★ (28)4 mi
38Green Living Remodeling574.9★ (67)10 mi
393G Builders and Renovation575.0★ (160)17 mi
40Construction Remodeling In Bay Area575.0★ (60)3 mi
41Home prep services575.0★ (22)3 mi
42DevArt8 Builders575.0★ (101)23 mi
43Finest Builders575.0★ (52)12 mi
44LB Construction & Remodeling574.6★ (38)4 mi
45PremierGarage of the Bay Area574.5★ (49)11 mi
46Sunny Design & Construction575.0★ (43)17 mi
47SBC CONSTRUCTION575.0★ (43)17 mi
48Hannah Construction Inc.575.0★ (35)15 mi
49BH Construction & Development565.0★ (87)23 mi
50Masterful Construction - Design & Build565.0★ (63)14 mi

Also serving San Lorenzo

20 more general contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked general contractors serving San Lorenzo
BusinessGoogle ratingDistance
american services of california5.0★ (2)5 mi
American Star ConstructionIn San Lorenzo
B-Bros Construction Inc5.0★ (2)2 mi
Bay City General Glass3.0★ (2)In San Lorenzo
Castillo Bay Builders, LLC5.0★ (2)5 mi
Chris Turturici Construction3.0★ (2)6 mi
Cold Steel ErectorsIn San Lorenzo
Edwin Sanchez & Son's Construction, Inc.In San Lorenzo
Escon Builders5.0★ (2)6 mi
Evans & Son Inc3.0★ (2)3 mi
Frontline General Engineering Construction5.0★ (1)In San Lorenzo
IGT General Contractors IncIn San Lorenzo
Local Construction5.0★ (2)3 mi
Malcolm Drilling Co., Inc.5.0★ (2)2 mi
Michael Gardner Plumbing5.0★ (94)In San Lorenzo
Montgomery Builders4.0★ (2)4 mi
Omar’s Construction LLC3.0★ (2)2 mi
Palm Construction4.6★ (190)In San Lorenzo
Valiant Construction5.0★ (2)In San Lorenzo
West Coast Sound Solutions3.0★ (2)2 mi

How much do general contractors cost in San Lorenzo?

Typical prices in USD, adjusted for California with a published regional index. Each row names its basis and month.

How much do general contractors cost in San Lorenzo?
JobLowTypicalHighBasisChecked
Kitchen remodel$15,240$28,190$43,470Per 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)October 2026
Bathroom remodel$7,050$12,880$18,720Per bathroom: typical range of customer-reported remodels. US national range × 1.06 Pacific factor (2025 Cost vs. Value Report)October 2026

How to check a general contractor's license in California

In California, Contractors State License Board (CSLB) licenses B General Building contractor license (B-2 for residential remodeling).

Jobs of $1,000 or more in labor and materials (from January 1, 2025).

  1. Search the business name or license number on the Contractors State License Board (CSLB) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

How we ranked San Lorenzo general contractors

We scored 1,180 San Lorenzo general contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn San Lorenzo data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

General contractors in San Lorenzo: frequently asked questions

Who is the best general contractor in San Lorenzo?

By CR Score, the highest-ranked general contractor in San Lorenzo, CA is Closets by Design - Northern California with a CR Score of 66/100. It has 4.8★ from 998 Google reviews. It is open 7 days a week. Ocean Remodel (#2) and Closet World - Northern California (#3) follow. We ranked 1,180 general contractors on ten factors, last updated October 22, 2026.

How many general contractors are there in San Lorenzo?

ContractorsRanked ranks 1,180 general contractors serving San Lorenzo, CA. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which general contractors in San Lorenzo are open 24/7?

67 ranked general contractors in San Lorenzo post 24/7 hours. The highest-ranked are Ocean Remodel (#2), R & S Erection North Peninsula (#4) and Method Remodeling General Contractor (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which general contractors in San Lorenzo work on weekends?

439 of 1,180 ranked general contractors post Saturday hours and 231 post Sunday hours. The highest-ranked open Saturdays are Closets by Design - Northern California (#1), Ocean Remodel (#2) and Closet World - Northern California (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check a general contractor's license in California?

In California, Contractors State License Board (CSLB) handles licensing and covers B General Building contractor license (B-2 for residential remodeling). Search the business or license number at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx. Jobs of $1,000 or more in labor and materials (from January 1, 2025).

How much does kitchen remodel cost in San Lorenzo?

Kitchen remodel typically costs $15,240 to $43,470, with $28,190 typical (Per 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)). The range is adjusted for California. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do San Lorenzo general contractors have?

The median Google rating among 1,180 rated general contractors in San Lorenzo is 5.0★, with a median of 7 reviews. Closets by Design - Northern California has the most, 998 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ContractorsRanked rank general contractors?

Each general contractor gets a 0–100 CR Score from ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Update log for San Lorenzo

  1. October 2026: CR Scores recalculated for 1,180 general contractors serving San Lorenzo.
  2. October 2026: 12 duplicate listings merged.

More general contractors and San Lorenzo pages

Other trades in San Lorenzo