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Location and Projects

Address
1820 Arnold Industrial Way, Concord, CA, 94520
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Bay Valley Roofing & Solar

Bay Valley Roofing & Solar is family owned and operated company. They specialize in roofing for homeowners throughout Solano, Contra Costa and Alameda Counties. Their goal is to provide quality work in a timely manner with no hidden costs, while building a bridge of trust along the way. By working with each client on a one-on-one basis, they are able to fulfill their needs and provide a finished product that meets all the customer’s financial goals.

From BuildZoom: Bay Valley Roofing & Solar, 1820 Arnold Industrial Way, Concord, CA (Employees: Lynnette Diane Diaz, Raul Diaz, and Ryan Diaz) holds a Renovation license and 3 other licenses according to the Environmental Protection Agency license board.

Their BuildZoom score of 126 ranks in the top 1% of 336,931 California licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Bay Valley Roofing & Solar, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Bay Valley Roofing & Solar Services

Start a project today:
Roofing Solar Installation Siding Gutters and Flashing Skylights

Bay Valley Roofing & Solar Contact Information

Phone: (925) 718-0780
Address: 1820 Arnold Industrial Way, Concord, CA 94520

Bay Valley Roofing & Solar Concord

Quality

126
99th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Bay Valley Roofing & Solar has a BuildZoom score of 126, which places them above 99% of 336,931 contractors in California.

Activity

10 projects
 2025
15 projects
 2024
22 projects
 2023
Our building permit records indicate that Bay Valley Roofing & Solar has worked on at least 47.0 projects over the past 3 years.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Experience

46 projects
 Roofing projects
Analyzing permits over the last 4 years shows that Bay Valley Roofing & Solar mostly works on roofing project projects.

Pricing

3 projects
 $5k-$20k
31 projects
 $20k-$50k
7 projects
 $50k-$100k
1 project
 $100k-$250k
Value Not Public: 5.0 projects
The typical size of their permits is approximately $32,169. This graph shows the distribution of these job values.
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Bay Valley Roofing & Solar Reviews
5 out of 5 stars, based on 3 reviews

  • By a user in Vallejo
    June 3, 2017
    Considered for Custom Home Construction
  • By Sam S.
    May 10, 2017
    Verified Hire

    I recall Bay Valley Roofer replaced the roof. They, being the Master-Elite of GAF, the shingle manufacturer, undoubtedly has better workmanship than the average roofer. We had no issue with their installation. However, that came with higher costs.

  • By Patricia B.
    May 5, 2017
    Verified Hire

    Bay Valley Contractors were very easy to work with and took into consideration my ideas and requirements. Yes, I would recommend them and use them again.
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Building Permits by Bay Valley Roofing & Solar

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Minor permit
2954 Avalon Ave, Berkeley, CA, 94705
2025-01-28
Tear off comparable. shingle. new decking. approx. 25 squares total. installation of approx. 3 squares pvc 60 mil membrane. installation of approx. 22 squares gaf energy timberline solar asphalt and energy shingles
Valuation:
$48,866
Permit #:
B2025-00356
Status:
issued
Fee:
$1,702
Permit Type:
N/A
Building Type:
N/A
Building
837 Laguna Honda Blvd, San Francisco, CA, 94127
2025-08-01
Re roofing: pitched roof approx 65 sq ft tear off comparable. install new comparable flat roof approx 13sq ft tear off rolled. install new pvc no new decking. ( no hot work)
Valuation:
$43,450
Permit #:
202507171074
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Building/residential/al/alteration
3214 Quandt Rd, Lafayette, CA, 94549
2022-05-05
Remove and replace existing trim and battens on siding. install new hardie primed 5/16” x 8.25” shiplap primed siding & 5/4” x 4” hardie primed trim over existing panel siding. dryrot repair as needed on back deck with 24.5’ x 6.5’ trex decking..gs/bb
Valuation:
$135,750
Permit #:
BIAL22-004819
Status:
final
Fee:
$3,079
Permit Type:
N/A
Building Type:
N/A
Building/residential/al/alteration
61 Camino Del Diablo, Orinda, CA, 94563
2022-01-10
Project consists of replacement of converting existing garage roof framing and roofing from hip roof to flat. existing walls & windows to remain replace existing siding on east/north sides and garage door (2) new electric car charging stations
Valuation:
$65,224
Permit #:
BIAL22-000255
Status:
final
Fee:
$2,090
Permit Type:
N/A
Building Type:
N/A
Building - residential re-roof
61 Breaker Dr, Bay Point, CA, 94565
2023-06-12
3/12 1 layer tear off of comparable shingle 17 square installation of comparable shingle hdz rs golden amber white metal sun tunnel **cool roof or coolroof exception is required at final**
Valuation:
$17,313
Permit #:
BIRR23-007131
Status:
final
Fee:
$436
Permit Type:
N/A
Building Type:
N/A
Building - residential re-roof
10 Middle Rd, Lafayette, CA, 94549
2022-11-07
Reroof: 2 squares. tear off. existing mod bit roofing material. install 1/2” dens deck. install new ib 60 mil pvc (white) roof 11/8/2022 **this is only a 2 square flat section on the home. we are not touching any section of solar.** fabdul-rahman
Valuation:
$20,000
Permit #:
BIRR22-012723
Status:
final
Fee:
$459
Permit Type:
N/A
Building Type:
N/A
Building/residential/al/alteration
3210 Quandt Rd, Lafayette, CA, 94549
2021-11-18
Remove and replace existing siding on entire home. paint to match existing color (no change). remove existing fireplace. install new bay window & small roof over bay window in place of removed fireplace
Valuation:
$235,870
Permit #:
BIAL21-013771
Status:
final
Fee:
$4,816
Permit Type:
N/A
Building Type:
N/A
Residential roofing permit
13720 Wake Ave, San Leandro, CA, 94578
2024-11-07
Tear off (e) shingles and reroof (n) built-in photovoltaic shingles replacing the plywood sheathing 25 squares garage attached refer to brsolar-24-0180 for shingle type
Valuation:
$37,717
Permit #:
BRROOF-24-0438
Status:
final
Fee:
$468
Permit Type:
N/A
Building Type:
N/A
Permit
647 Santa Barbara Rd, Berkeley, CA, 94707
2024-01-17
Re-roof installation of gaf energy timberline solar asphalt and energy shingle ( ref: b2023-01671). 36 sq. tear off one layer addition one layer. all new decking
Valuation:
$55,960
Permit #:
B2024-00219
Status:
issued
Fee:
$1,893
Permit Type:
N/A
Building Type:
N/A
Permit submittal
3210 Quandt Rd, Lafayette, CA, 94549
2021-11-17
Remove and replace existing siding on entire home. paint to match existing color (no change). remove existing fireplace (non-structural). install new bay window in place of removed firepalce
Valuation:
$235,870
Permit #:
BISUB21-01687
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Permit
2 Wilson Cir, Berkeley, CA, 94708
2024-01-17
Re-roof permit to go with installation of gaf energy timberline solar asphalt and energy shingle (ref: b2023-01673). 37 squares. new decking
Valuation:
$83,455
Permit #:
B2024-00218
Status:
issued
Fee:
$2,787
Permit Type:
N/A
Building Type:
N/A
Building - residential re-roof
83 Diablo View Dr, Orinda, CA, 94563
2023-05-24
Tear off 27 squares of 1-layer comparable shingle re- deck roof install new roof system of timberline hdz-rs shingle install radiant barrier and in line ventillation ** cool roof or cool roof exempt required. **
Valuation:
$32,269
Permit #:
BIRR23-006396
Status:
final
Fee:
$456
Permit Type:
N/A
Building Type:
N/A
Permit submittal
61 Camino Del Diablo, Orinda, CA, 94563
2022-01-05
Project consists of replacement of existing garage roof framing and roofing. existing walls & windows to remain replace existing siding and garage door (2) new electric car charging stations
Valuation:
$65,224
Permit #:
BISUB22-00034
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building - residential re-roof
1222 Sunset Loop, Lafayette, CA, 94549
2022-10-04
Reroof: 37 squares. tear off. existing comparable roofing material. no new decking. install new gaf comparable roof crrc #0676-0137 **cool roof or coolroof exception is required at final. fabdul-rahman**
Valuation:
$30,412
Permit #:
BIRR22-011254
Status:
final
Fee:
$460
Permit Type:
N/A
Building Type:
N/A
Building Permit
859 Hanlon Way, Benicia, CA, 94510
2022-02-08
Addition 340 sq. ft bedroom bathroom addition electric fireplace insert hvac ducts (n)sub panel water and sewer line/revised 1/17/2023 delete the electric fire place and hvac/ducts
Valuation:
$148,565
Permit #:
BLD-22-184
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building - residential re-roof
310 Valley Hill Dr, Moraga, CA, 94556
2024-04-08
49 square 1 layer off tile all new decking 1 layer on comparable shingle **cool roof or coolroof exception is required at final**
Valuation:
$69,837
Permit #:
BIRR24-003488
Status:
issued
Fee:
$438
Permit Type:
N/A
Building Type:
N/A
Building - residential re-roof
172 Valley Hill Dr, Moraga, CA, 94556
2022-03-08
Reroof: 37 squares. tear off existing comparable. shingle. no new decking. install new tile roof with batten system. **cool roof or cool exception required** -lvisperas
Valuation:
$55,895
Permit #:
BIRR22-002463
Status:
final
Fee:
$438
Permit Type:
N/A
Building Type:
N/A
Single family residential
936 N Camino Alto, Vallejo, CA, 94589
2025-04-11
Tear off comparable. install 23 squares comparable shingle. no new deck
Valuation:
N/A
Permit #:
BP25-00498
Status:
final
Fee:
$248
Permit Type:
Re-roof
Building Type:
N/A
Building - residential re-roof
1330 Vine Ave, Martinez, CA, 94553
2024-03-28
**17 squares***off comparable shingle installation of gaf energy timberline solar asphalt and energy shingles no new decking. *cool roof or cool roof exception is required at final*
Valuation:
$43,488
Permit #:
BIRR24-003170
Status:
payment received
Fee:
$437
Permit Type:
N/A
Building Type:
N/A
Building - residential re-roof
119 Allen Ct, Moraga, CA, 94556
2023-10-12
1 layer tile removal new sheathing on entire roof 1 layer concrete tile installation on a 3700 square foot roof. 1 story building 3/12 pitch **37 squares cool roof or cool roof exceptions are required at final** fabdul-rahman
Valuation:
N/A
Permit #:
BIRR23-012066
Status:
final
Fee:
$462
Permit Type:
N/A
Building Type:
N/A