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Location and Projects

Address
2112 COLFAX WAY, Antioch, CA, 94509
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Kelly-Son & Associates Construction

Serving Antioch, California, and surrounding communities, Kelly-Son & Associates brings over three decades of experience to residential and light commercial construction projects. The company handles a range of construction services, including new home building, home additions, remodels, and property upgrades. With 36 years in the industry, Kelly-Son & Associates is equipped to manage both ground-up construction and improvements to existing structures. Their portfolio reflects work on single-family homes, multi-family residential buildings, and small commercial properties. Clients in the East Bay area rely on their practical knowledge and established methods throughout all phases of construction, from initial planning to project completion. Kelly-Son & Associates works directly with homeowners, property managers, and business owners seeking reliable general contracting services in Contra Costa County.

Kelly-Son & Associates Contact Information

Phone: (415) 672-0280 Edit
Address: 2112 COLFAX WAY, Antioch, CA 94509 Edit

Kelly-Son & Associates Antioch

Quality

107
94th percentile
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Kelly-Son & Associates has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.

Activity

4 projects
2025
6 projects
2024
3 projects
2023
Our building permit records indicate that Kelly-Son & Associates has worked on at least 13.0 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
6 projects
$5k-$20k
5 projects
$20k-$50k
1 project
$50k-$100k
Value Not Public: 5.0 projects
The typical size of their permits is approximately $17,000. 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.

Building Permits by Kelly-Son & Associates

Sort by: Notable Notable | Date Date | Job Value Job Value
Residential alteration permit
2025-08-12
R&r shower pan shower surround shower faucet exhaust fan in master and hall bathroom install new hot & cold water supply lines install new electrical sub panel - 60 amp located in garage r&r 3 single-sided wall furnaces - located in living room dining room and hallway all components to remain in existing locations no relocation
Valuation:
$70,000
Permit #:
BRALT-25-0326
Status:
complete
Fee:
$2,067
Permit Type:
Interior remodel
Building Type:
N/A
Express bathroom like-for-like remodel permit - residential
2025-03-17
*master bath:* remove and replace existing shower pan shower surround and shower faucet. *only bathroom at the house*
Valuation:
$20,000
Permit #:
CBW25-0052
Status:
issued
Fee:
$1,642
Permit Type:
N/A
Building Type:
N/A
Express reroof permit - residential
2025-01-18
Re-roof using class a fire rated dimensional fiberglass shingles gaf - timberline hdz
Valuation:
$19,000
Permit #:
RW25-0022
Status:
final
Fee:
$599
Permit Type:
N/A
Building Type:
N/A
Express plumbing permit - residential
2025-01-18
Replace hot and cold waterlines throughout **add water heater to scope work**
Valuation:
$5,000
Permit #:
PW25-0020
Status:
final
Fee:
$699
Permit Type:
N/A
Building Type:
N/A
Replace blower motor on water heater and install secondary loop (in existing conditioned space) on existing hydronic system with pumps and draining connecting to manifold. repair damaged drywall at interior wall for single family. dry wall repair is approximately 1 foot x 1 foot
Valuation:
$7,000
Permit #:
B2021-05644
Status:
issued
Fee:
$676
Permit Type:
N/A
Building Type:
N/A
Upgrade electrical from 100 to 200 amps re-wire home r&r windows in dining and living rooms r&r bathtub shower surround and shower faucet
Valuation:
$40,000
Permit #:
B2024-00363
Status:
issued
Fee:
$797
Permit Type:
N/A
Building Type:
N/A
Residential remodel/repair/maintenance
2024-02-05
Remove and replace roof remove and replace electrical sub-panel remove and replace bathtub shower surround and shower faucet
Valuation:
$30,000
Permit #:
BL-RES-2024-00033
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove & replace windows same sizes & locations. upgrade main service panel from 100 amps to 200 amps & rewire home
Valuation:
$40,000
Permit #:
B2024-02392
Status:
issued
Fee:
$2,422
Permit Type:
N/A
Building Type:
N/A
Building/residential/al/alteration
2021-02-09
Remodel in-kind same location: new bathtub shower/walls shower faucet **3/9/21 per paul hodge tile work & plumbing ok to redo same location as origional permit & recall for inspection #113 or #115 misc-bushra toma**
Valuation:
N/A
Permit #:
BIAL21-001510
Status:
final
Fee:
$624
Permit Type:
N/A
Building Type:
N/A
Residential hvac
2025-02-13
Replace existing forced air furnace with new properly sized 90 percent afue efficient model
Valuation:
$19,275
Permit #:
BLD2025-03261
Status:
complete
Fee:
$149
Permit Type:
N/A
Building Type:
N/A
Bathroom remodel new shower vanity toilet & exhaustfan. relocate electrical sub panel
Valuation:
$25,000
Permit #:
202201856
Status:
complete
Fee:
$420
Permit Type:
Remodel - complet...
Building Type:
N/A
8/f: relocate 6 heads addition 6 heads total 12 heads ref t.i.pa# 202208231103
Valuation:
$7,200
Permit #:
202305258550
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Install new automatic fire sprinkler system through-out building per nfpa 13 & 24 with new-2-inch fire service off of 6-inch main on 34th ave. total sprinklers installed is 26
Valuation:
$13,200
Permit #:
201808167476
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
26 - misc group r...
Building/residential/al/alteration
2020-03-09
Remove and replace shower pan shower walls shower faucet; two vanties with new faucets; all in kind replacement. no electrical mechanical or structural per contractor
Valuation:
N/A
Permit #:
BIAL20-002436
Status:
final
Fee:
$472
Permit Type:
N/A
Building Type:
N/A
Residential - remodel bathroom
2024-06-28
Remove and replace bathtub shower surround and shower faucet in hall bathroom
Valuation:
$7,500
Permit #:
BL-ROVC-2024-00036
Status:
complete
Fee:
$425
Permit Type:
N/A
Building Type:
N/A
8/f: relocating 6 sprinkler head and addition 6 heads
Valuation:
N/A
Permit #:
PP20230525146
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install automatic fire sprinkler system. install stand pipes in stair wells. install new 4 fire service. 354 heads. alarm deferred
Valuation:
$350,000
Permit #:
201611082193
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
R&r water supply lines replace electrical main panel and re-wire home
Valuation:
N/A
Permit #:
B2022-04362
Status:
approved
Fee:
$292
Permit Type:
N/A
Building Type:
N/A
Residential - re-roof
2024-05-10
Remove and replace roof with class a fiberglass shingles
Valuation:
$15,000
Permit #:
BL-ROOF-2024-00045
Status:
complete
Fee:
$548
Permit Type:
N/A
Building Type:
N/A
Residence misc
2022-06-28
Construct new walls to create laundry room & stor for utilites
Valuation:
N/A
Permit #:
B21-1972
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A

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