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Location and Projects

Address
31833 Kent Black Diamond Rd, Renton, WA, 98058
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Westwater Construction Company

The past jobs and permits shown are just the electrical permits for larger public works construction projects we do. We do not do residential building or remodeling. This site has our description totally wrong.

From BuildZoom: Westwater Construction Company, 31833 Kent Black Diamond Rd, Renton, WA (Owned by: Tom Caplis) holds a Construction Contractor, General license and 1 other license according to the Tukwila license board.

Their BuildZoom score of 104 ranks in the top 9% of 128,670 Washington licensed contractors.

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

Westwater Construction Company Services

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Sewer Laterals Other Commercial New Constr...

Westwater Construction Company Contact Information

Phone: (425) 891-3362
Address: 31833 Kent Black Diamond Rd, Renton, WA 98058

Westwater Construction Company Renton

Quality

104
91st percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Westwater Construction Company has a BuildZoom score of 104, which places them above 91% of 128,670 contractors in Washington.

Activity

3 projects
 2025
1 project
 2023
Our building permit records indicate that Westwater Construction Company has worked on at least 4.0 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

1 project
 $20k-$50k
1 project
 $50k-$100k
Value Not Public: 1.0 project
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 Westwater Construction Company

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.

Stormwater vault permit
2989 Da Vinci Ave NE, Redmond, WA, 98052
2025-02-21
Cip project - vault - 2021 ibc - existing vault to remain. project will remove and dispose of existing concrete removable slab and replace with a double leaf aluminum hatch
Valuation:
$100,000
Permit #:
BLDG-2024-07555
Status:
issued
Fee:
$3,503
Permit Type:
N/A
Building Type:
N/A
Side sewer permit
1400 E Prospect St, Seattle, WA, 98112
2023-12-05
Volunteer park drinking fountain install drain for new drinking fountain to connect to existing on-site combined sewer drain at volunteer park near the seattle asian art museaum (sam) per attached plans. no associated building permit
Valuation:
$75,000
Permit #:
6998301-SS
Status:
issued
Fee:
$375
Permit Type:
None
Building Type:
Institutional
Building - commercial
16426 128th Ave SE, Renton, WA, 98058
2025-06-30
Lindbergh high school - pedestrian ada ramp - demolition of existing asphalt sidewalk and replace with ada ramp
Valuation:
$21,509
Permit #:
B25001950
Status:
complete
Fee:
$1,140
Permit Type:
N/A
Building Type:
N/A
Civil
503 39th Ave SW, Puyallup, WA, 98373
2022-05-03
Civil ~ pierce transit at south hill mall
Valuation:
N/A
Permit #:
E-21-0111-1
Status:
final
Fee:
$14,228
Permit Type:
Not applicable
Building Type:
N/A
Stormwater permit
1601 Lake Youngs Way SE, Renton, WA, 98058
2021-06-25
Pavement improvements associated with school parking lots including re-paving overlays seal coat curbing ada parking curb ramps signage channelization striping and drainage improvements. condition: comply with all conditions of restriping building permit b21-001985. construction cannot begin until issuance of both this stormwater permit and the restriping permit
Valuation:
N/A
Permit #:
SW21001880
Status:
issued
Fee:
$394
Permit Type:
N/A
Building Type:
N/A
Building Permit
10833 NE 2nd St, Bellevue, WA, 98004
2021-02-11
Survey utility locates and potholing within right-of-way
Valuation:
N/A
Permit #:
20 119875 TJ
Status:
issued
Fee:
$6,533
Permit Type:
N/A
Building Type:
N/A
Building permit
22901 106th Ave W, Edmonds, WA, 98020
2016-06-23
Re-configuration of pick-up/drop off zones removal of 1 driveway and the addition of a new driveway. storm drainage alterations. installation of 160 sf storage shed
Valuation:
$249,479
Permit #:
BLD20150490
Status:
final
Fee:
$17,236
Permit Type:
N/A
Building Type:
46 – paving/parki...
Building Permit
152 Nd Ave SE, Bellevue, WA, 98006
2012-03-01
Project name: westwater construction - cob util vasa creek culvert (152nd ave se) traffic control plan to grout voids in the 117 lf of newly installed, cured-in-place liner at the 48" cmp vasa creek culvert, located on 152nd ave se approx. 260' s c/l se newport way. work to be performed the week of april 8, 2012. see special conditions and attachments. **pi rev. 1 - change to work hou... see more
Valuation:
N/A
Permit #:
12-107832 TK
Status:
Closed
Fee:
$149
Permit Type:
N/A
Building Type:
N/A
Building Permit
152nd Ave Se At Vasa Creek, Bellevue, WA, 00000
2011-04-27
Project name: cob util - vasa creek culvert lining trenchless repair of the existing 48" cmp culvert, approx.117 linear feet using a cured-in-place liner, beginning at the catch basin and ending at the end of the culvert. see conditions & attachments. subject to hourly review & inspection fees. **pi rev #1 - permeation grouting of culvert. no cut street; variance granted. grind & over... see more
Valuation:
N/A
Permit #:
11-111573 TK
Status:
Closed
Fee:
$469
Permit Type:
N/A
Building Type:
N/A
Building Permit
3322 102nd Ave NE, Bellevue, WA, 98004
2010-08-11
Project name: cob yarrow creek tributary 102nd ave ne emergency culvert repair emergency culvert and embankment repair, dump trucks and other equipment, install stream by pass across 102nd ave ne. see special conditions and attachments.
Valuation:
N/A
Permit #:
10-120552 TK
Status:
Closed
Fee:
$213
Permit Type:
N/A
Building Type:
N/A
Building Permit
106 148th Ave SE, Bellevue, WA, 98007
2013-02-13
Project name: traffic signal upgrade - cobt replace existing traffic signal, minor storm improvements, grind and overlay roadway, wall repair at 1700 block 148th ave se.
Valuation:
N/A
Permit #:
13-106939 GD
Status:
Expired
Fee:
$795
Permit Type:
N/A
Building Type:
N/A
Building permit
22901 106th Ave W, Edmonds, WA, 98020
2015-06-23
Re-configuration of pick-up/drop off zones removal of 1 driveway and the addition of a new driveway. storm drainage alterations. installation of 160 sf storage shed
Valuation:
N/A
Permit #:
BLD20150490
Status:
ISSUED
Fee:
$17,236
Permit Type:
46 – paving/par...
Building Type:
681 nursery prima...
Building Permit
152 Nd Ave Se South Of Newport Way, Bellevue, WA, 98006
2011-07-25
Project name: westwater construction - cob util 152nd ave se south of newport way tcp for construction required to line 48" culvert (util. d-64). see special conditions and attachments.
Valuation:
N/A
Permit #:
11-119455 TK
Status:
Closed
Fee:
$142
Permit Type:
N/A
Building Type:
N/A
Building Permit
12902 SE 48th Pl, Bellevue, WA, 98006
2007-09-06
Project name: cob transportation - 12902 se 48th pl close lane to install 5 ecology blocks behind sidewalk. (coal creek parkway slide repair) row permit fee $131.00 + realtime hourly inspection fees. see conditions & attachments.
Valuation:
N/A
Permit #:
07-132069 TC
Status:
Closed
Fee:
$183
Permit Type:
N/A
Building Type:
N/A
Right-of-way
200 Kirkland Ave, Kirkland, WA, 98033
1999-07-23
Type: public works class: stand alone, , stucco/wall repair work. re-route ped traffic w/lighted barricades & construction tape/rope in parking area's. 2 permits $35.00 ea. main st & kirkland avenue. approx. 1 week, , project: `r building repair
Valuation:
N/A
Permit #:
PUB98-00179
Status:
final
Fee:
$70
Permit Type:
N/A
Building Type:
N/A
Hydrant meter rental
1601 Lake Youngs Way SE, Renton, WA, 98058
2022-03-10
Hydrant permit for tiffany park elem school site work
Valuation:
N/A
Permit #:
W21003120
Status:
complete
Fee:
$2,078
Permit Type:
N/A
Building Type:
N/A
Clearing & grading
301 116th Ave SE, Bellevue, WA, 98004
2003-07-25
Install concrete curb gutter sidewalk rock wall and storm drainage improvements
Valuation:
N/A
Permit #:
00 227229 GD
Status:
final
Fee:
$367
Permit Type:
N/A
Building Type:
N/A
Clearing/grading
12040 NE 128th St, 260, Kirkland, WA, 98034
2002-03-16
Type: land surface modification - lsm class: import, , utility relocation and grading required for construction of radiation oncology building, , project: evergreen professional center
Valuation:
N/A
Permit #:
LSM99-00006
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building permit
21608 Highway 99, Edmonds, WA, 98026
2010-03-11
Construction of brt platform and installation of bus shelter (400 sf) and amenities
Valuation:
$6,800
Permit #:
BLD20080761
Status:
final
Fee:
$332
Permit Type:
N/A
Building Type:
43 - miscellaneous
Building permit
23727 Highway 99, Edmonds, WA, 98026
2010-03-11
Construction of brt platform and installation of bus shelter (400 sf) and amenities
Valuation:
$6,800
Permit #:
BLD20080760
Status:
final
Fee:
$332
Permit Type:
N/A
Building Type:
43 - miscellaneous

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