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Location and Projects

Address
1200 Mt Diablo Blvd, Walnut Creek, CA, 94596
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Astounding Construction Inc

Astounding Construction Inc. | Building Dreams in the Bay Area

Welcome to Astounding Construction Inc., where innovation meets craftsmanship!
As your premier construction partner in the Bay Area, we take pride in turning visions into reality. With a commitment to excellence and a passion for quality, we specialize in a wide range of construction services, from new builds to renovations.

✨ Why Choose Astounding Construction:

Expert Craftsmanship: Each project is a testament to our dedication to precision and detail.
Client-Centric Approach: Your vision guides our process, ensuring a personalized and seamless experience.
Proven Track Record: With a portfolio of successful projects, we've earned the trust of our Bay Area community.
Timely Delivery: We understand the value of your time; our team ensures projects are completed on schedule.

Our Services:

New Construction
Kitchen/bathroom Remodeling
Roofing
Room Addition
ADU (Accessory Dwelling Unit)
Framing
Foundation
Garage conversion
Full House Remodeling

Let Astounding Construction Inc. be your partner in building the extraordinary. From concept to completion, we're here to exceed your expectations. Contact us today and let's bring your vision to life! ? #AstoundingConstruction #BayAreaBuilders #BuildingExcellence

From BuildZoom: Astounding Construction Inc, 1200 Mt Diablo Blvd, Walnut Creek, CA (Employees: Isidro Chavez Arroyo and Vanessa Sainz) holds a General Building license and 1 other license according to the California license board.

Their BuildZoom score of 105 ranks in the top 8% of 336,931 California licensed contractors.

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

Astounding Construction Inc Contact Information

Phone: (925) 430-9768
Address: 1200 Mt Diablo Blvd, Walnut Creek, CA 94596

Astounding Construction Inc Walnut Creek

Quality

105
92nd percentile
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Astounding Construction Inc has a BuildZoom score of 105, which places them above 92% of 336,931 contractors in California.

Activity

2 projects
2025
3 projects
2024
3 projects
2023
Our building permit records indicate that Astounding Construction Inc has worked on at least 8.0 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.

Pricing

3 projects
< $5k
2 projects
$5k-$20k
1 project
$20k-$50k
1 project
$50k-$100k
1 project
$250k-$500k
Value Not Public: 1.0 project
The typical size of their permits is approximately $15,000. 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.

Astounding Construction Inc Reviews
4.5 out of 5 stars, based on 4 reviews

  • By Devin W.
    March 9, 2025
    roof replacement
    $15,500

    I cant recommend enough, pricing came in below what I thought I would be spending, roof replacement plus some extra work done sooner then I thought they would be able to, Isidro is easy to talk to and work with, will definitely be recommending Astounding construction to my friends

  • By David M.
    December 20, 2023
    Complete rebuild
    $1,150,000

    Our project scope was a complete rebuild of an old home and Astounding Construction managed 90 percent of this project. Isidro and Vanessa are amazing people to work with and always respond to calls and requests promptly. They are easy and fun to work with The quality of all the work was exceptional and exceeded our expectations beyond our extremely high standards. The work was delivered on time and on budget. We 100% recommend this company for any home project of any scale, Super positive experience

  • By Hodori T.
    November 30, 2023
    Considered for Insulation Work

    The bid only included two of the four ask. I wanted plywood installed in the attic and the attic sealed off from rodent infestation.

  • By Ashley
    April 10, 2022

    My experience with Astounding Construction was fabulous. They were very professional and did not waste time. I bought a property on a hill in Los Gatos and they built the home from the ground up just in time for my child to go to school in one of the best school districts in Silicon Valley. Definitely would recommend and use again.

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Building Permits by Astounding Construction Inc

Sort by: Notable Notable | Date Date | Job Value Job Value
Multiple attached dwellings
2025-10-15
Unit #3 and unit #4 for a fourplex scope of work: -replace with a new stair railing the exterior stairs -replace with a new guard railing the exterior stairs -fix all dry rot issues -demolition of cement landing pad -add 1 cement pad over waterproofing material
Valuation:
$1,324
Permit #:
2025 135173 MF
Status:
issued
Fee:
$488
Permit Type:
Apartment
Building Type:
N/A
Building - residential re-roof
2024-05-08
The following is the proposal and/or contract to do: roof remodeling in strict accordance with the specifications contained in the approved quote: phase 1 -remove shingles -remove vents - -remove flashings - -remove gutters - -dispose of debris phase 2 remove and replace damaged plywood remove and replace damaged boards in eaves remove and replace damaged facia pass in progress inspec... see more
Valuation:
$44,000
Permit #:
BIRR24-004745
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
1 & 2 family detached dwellings
2023-03-06
Scope of work: - convert (e) detached garage to a (n) 427 sq ft adu at front lot of (e) main residence - adu consist of 1 bedroom 1 bathroom kitchen living room and a 62 sq ft patio - install (n) mini split hvac & water heater for adu
Valuation:
$64,421
Permit #:
2022 673982 RS
Status:
issued
Fee:
$1,533
Permit Type:
2nd unit added
Building Type:
N/A
Re-roofing certificate - separate obstruction permit required for curbside parking, obstruction of sidewalk/street (scaffolding, fencing, dumpsters, etc.). separate building permit required for any structural changes. separate paint permit required for paint disturbance on any structure built before 1978. insulation certificate - separate obstruction permit required for curbside parki... see more
Valuation:
$15,000
Permit #:
R2301386
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Re-roofing certificate - separate obstruction permit required for curbside parking, obstruction of sidewalk/street (scaffolding, fencing, dumpsters, etc.). separate building permit required for any structural changes. separate paint permit required for paint disturbance on any structure built before 1978. description of work: existing shingles removal and new shingles place... see more
Valuation:
$16,000
Permit #:
R2301374
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Re-roof - residential
2020-08-26
Re-roof: tear off using existing sheathing (must have pre-roof inspection) install synthetic felt cool roof comparable 30 sq @ single family residence no patio. crrc 0668-0072. must meet all cool roof requirements
Valuation:
$6,300
Permit #:
RERF-000755-2020
Status:
final
Fee:
$182
Permit Type:
N/A
Building Type:
N/A
Combination m.f. dwelling - new building
2025-02-11
Single story triplex with 1 attached garage 2 detached garages and site improvements. included plumbing mechanical and electrical. units 101 102 103. 16 t24
Valuation:
$493,607
Permit #:
CMBM-001086-2019
Status:
expired
Fee:
$8,215
Permit Type:
N/A
Building Type:
N/A
New entry door covering roof and remodel restroom ada to commercial building
Valuation:
$35,000
Permit #:
A1902021
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Building Permit
2020-03-06
Room addition
Valuation:
$50,000
Permit #:
20200459
Status:
complete
Fee:
$1,047
Permit Type:
Re add/alt
Building Type:
N/A
Re-roof permit
2021-01-22
Single family residence tear off comparable 18 sq
Valuation:
N/A
Permit #:
B19-12996
Status:
issued
Fee:
$256
Permit Type:
N/A
Building Type:
N/A
Building Permit
2019-10-30
Room addition
Valuation:
$50,000
Permit #:
20192257
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building Permit
2019-06-17
Tear off and re-roof - 30 squares
Valuation:
$6,500
Permit #:
20191160
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building Permit
2019-08-29
Tear off and re-roof - 7 squares
Valuation:
$3,300
Permit #:
20191783
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-roof permit
2019-11-01
Single family residence tear off comparable 18 sq and plumbing fix't
Valuation:
N/A
Permit #:
B19-14524
Status:
issued
Fee:
$348
Permit Type:
N/A
Building Type:
N/A
O/l comparable cool roof
Valuation:
N/A
Permit #:
DV18-2891-RMOL-0-0-0
Status:
issued
Fee:
$123
Permit Type:
N/A
Building Type:
N/A
O/l comparable cool roof
Valuation:
N/A
Permit #:
DV18-2890-RMOL-0-0-0
Status:
issued
Fee:
$123
Permit Type:
N/A
Building Type:
N/A
Re-roof permit
2018-04-03
Tear off (e)sht'g cool roof
Valuation:
N/A
Permit #:
DV18-3207-RRSF-0-0-0
Status:
final
Fee:
$173
Permit Type:
N/A
Building Type:
N/A
Over lay comparable
Valuation:
N/A
Permit #:
B18-07600
Status:
canceled
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
Combination s.f. dwelling - alteration
2009-05-15
Hvac/electrical: 3 ton 13 seer 70, 000 heating btu dual pack roof mount ducting. hers test is required. includes service panel change out new 125 amp
Valuation:
$6,700
Permit #:
09-0871
Status:
final
Fee:
$235
Permit Type:
N/A
Building Type:
N/A
Re-roof permit
2019-01-17
O/lay tpo
Valuation:
N/A
Permit #:
B19-00624
Status:
issued
Fee:
$134
Permit Type:
N/A
Building Type:
N/A