Updated: Jun 23, 2026
Location and Projects
Address
PO BOX 158, Mukilteo, WA, 98275
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KLB Construction Plumber
KLB Construction Inc, Mukilteo, Po Box 158, Mukilteo, WA (Employees: BOSA, KELLY LYNN, CHRISTENSEN, COREY THOMAS, and Corey Christensen) holds a Construction Contractor, General license and 6 other licenses according to the Tukwila license board.
Their BuildZoom score of 110 ranks in the top 4% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring KLB Construction Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
KLB Construction Inc Services
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KLB Construction Inc Contact Information
Phone Number: (425) 355-7335
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Address: PO BOX 158, Mukilteo, WA 98275
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KLB Construction Inc Mukilteo
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
KLB Construction Inc has a BuildZoom score of 110, which places them above 96% of 128,670 contractors in Washington.
Activity
|
4 projects
|
2025 |
|
9 projects
|
2024 |
|
8 projects
|
2023 |
Our building permit records indicate that KLB Construction Inc has worked on at least
21.0 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.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
6 projects
|
New Constructions |
|
4 projects
|
Plumbing projects |
|
3 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that KLB Construction Inc mostly works on
new construction
and plumbing project
projects.
Pricing
|
1 project
|
$100k-$250k |
|
1 project
|
$1mil+ |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Klb construction - storm connection 1 trails project: sanitary to existing park's sanitary sewer. storm and footings directed to receiving waters. osm including: dispersion. all per approved plans under 7058004-cn
Valuation:
$6,000,000
Permit #:
7085568-SS
Status:
issued
Fee:
$750
Permit Type:
New
Building Type:
Industrial
High street collection ph. 2 street extension of ne federal drive from 9th avenue ne to 8th avenue ne. including curb and gutter sidewalk channelization utility improvements
Valuation:
N/A
Permit #:
SW24-00033
Status:
issued
Fee:
$66,370
Permit Type:
N/A
Building Type:
N/A
Repair and replacement of storm pipe from storm structure in sedimentation pond down to storm structure on lake washington blvd bus loop on the other side of i405. method of replacement includes auger boring and trenching. auger boring operations will affect the storm structure on city of bellevue property and is the subject of this permit
Valuation:
N/A
Permit #:
22 116758 UE
Status:
issued
Fee:
$1,190
Permit Type:
N/A
Building Type:
N/A
Install 12 looped main hydrants and relocate pse storm pipe for southport hotel early utility plan #3772. includes installation of a restraint system on an existing valve and relocation of a hydrant
Valuation:
$4,500,000
Permit #:
U14005809
Status:
complete
Fee:
$22,263
Permit Type:
N/A
Building Type:
N/A
Widen lake washington blvd. south of southport entrance roadway. correct pavement and curb defect at the se corner of lwb and houser way constructed under phase 1 of the southport lwb improvements. install storm drainage box or bridge for routing of existing storm drainage culverts under lwb. phase 3/3 of the southport lwb improvements. repair gabian basket wall
Valuation:
N/A
Permit #:
C17004398
Status:
complete
Fee:
$30,820
Permit Type:
N/A
Building Type:
N/A
Install box culvert for john's creek under southport entrance roadway. widen southport entrance roadway. complete intersection improvements from southport site to coulon park. complete stream restoration. phase 2/3 of the southport lwb improvements
Valuation:
$504,425
Permit #:
U16002823
Status:
complete
Fee:
$64,631
Permit Type:
N/A
Building Type:
N/A
Construction permit for the construction of twelve (12) new attached townhome units (la fortuna building configuration). the subject site is located off of 127th pl se between se 172 st and se petrovitsky rd and includes the following parcels: 3956200010 3956200020 3956200030 3956200040 3956200080 and 3956200080. reference lua19-000263
Valuation:
N/A
Permit #:
C20000611
Status:
issued
Fee:
$12,130
Permit Type:
N/A
Building Type:
N/A
Bryan binder 5/29/20 -atr: extended expration date through 5/31/21. vsp: extended thru 06/01/20. st side sewer and storm drainage work for one parent project (6470080) and two associated child permits (6470089 and 6470097.) east of 1st ave ne from ne 103rd st to n end of st parking garage. approved drainage sheets are in revision 6470080-cn-016
Valuation:
$174,000,000
Permit #:
6669465-SS
Status:
issued
Fee:
$6,976
Permit Type:
New
Building Type:
Commercial
Installation of city utilities (water sewer storm) and roadway improvements due to the widening of i-405. the wsdot renton to bellevue project has multiple existing agreements with the city including the utility agreement utb - 1296. as portions of this project are rfc (released for construction) the design building team will upload the files to: https://flatironcorp.box.com/s/aar2lzh... see more
Valuation:
N/A
Permit #:
C20002949
Status:
issued
Fee:
$65,975
Permit Type:
N/A
Building Type:
N/A
Construct utilities for southport office towers. (project #3878)
Valuation:
N/A
Permit #:
U15005273
Status:
complete
Fee:
$448,535
Permit Type:
N/A
Building Type:
N/A
12541 35th ave ne drainage work for new townhouse project to be completed under 6750444-ss. associated building permit 6669887-cn
Valuation:
$1,800,000
Permit #:
6751178-SS
Status:
issued
Fee:
$375
Permit Type:
Addition/alteration
Building Type:
Multifamily
Type: land surface modification class: site development, , simonds road lsm: groundwork for 12 lot single family residence plat. (vault bno19-07482 soldier pile wall bno19-08805.), , project: simonds road plat (12 lots)
Valuation:
N/A
Permit #:
LSM18-00856
Status:
expired
Fee:
$68,753
Permit Type:
N/A
Building Type:
N/A
Fwle - potholing s 204th st, potholing located on 28th ave s & s 204th st
Valuation:
N/A
Permit #:
ROW20-0026
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Type: building not occupied class: new, , simonds road: construct soldier pile retaining wall. wall will support excavation of landslide hazard soil and will be backfilled with suitable structural fill. (re: lsm18-00856), , project: simonds road plat (12 lots)
Valuation:
N/A
Permit #:
BNO19-08805
Status:
final
Fee:
$3,711
Permit Type:
N/A
Building Type:
N/A
Renovation and upgrade to existing neighborhood park amenities. work to include: new restroom structure two picnic shelters parking lot stormwater drainage improvements including biofiltration facilities new electrical and utility connections pedestrian loop pathways seating areas play area playfields lawn areas half basketball court buffer plantings irrigation sculptural earth elements
Valuation:
N/A
Permit #:
17 115687 GD
Status:
final
Fee:
$5,065
Permit Type:
N/A
Building Type:
N/A
Type: building single family class: new, , simonds road (lot 2): new single family home, , project: simonds road plat (12 lots)
Valuation:
N/A
Permit #:
BSF21-05104
Status:
issued
Fee:
$36,654
Permit Type:
N/A
Building Type:
N/A
Bryan binder install a temporary side sewer from the staging area between i5 sb and corliss ave n. to an existing sanitary mh per plan. side sewer to be used for discharge of process water generated from the sound transit l200 project. water to be treated and tested prior to discharge per terms of cos. side sewer to be removed or abandoned and capped per cos standards prior to final o... see more
Valuation:
N/A
Permit #:
6740655-SS
Status:
issued
Fee:
$1,518
Permit Type:
None
Building Type:
Industrial
Hydrant meter rental for work on 405 renton to bellevue wsdot project. only will use meter on cor hydrants
Valuation:
N/A
Permit #:
W23003169
Status:
complete
Fee:
$2,078
Permit Type:
N/A
Building Type:
N/A
Demolition for project staging and site office area. see permit 17-107790-tk for conditions on use of public right of way. add'l traffic control plan needs to be approved prior to abandonment of water services at the main
Valuation:
N/A
Permit #:
17 103637 BE
Status:
final
Fee:
$866
Permit Type:
N/A
Building Type:
N/A
Southport park ave extension - construction of a private interim roadway through the southport site
Valuation:
N/A
Permit #:
C19002723
Status:
complete
Fee:
$38,034
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
KLB Construction Inc License info
Verified License
| License # | KLBCOCL766OZ |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for KLB Construction Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | KLBCOI*153B8 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Corporation |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for KLB Construction Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | KLBCOCL766OZ |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for KLB Construction Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | KLBCOI*153B8 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for KLB Construction Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | KLBCOI 153B8 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, General |
| Business Type | Corporation |
- When BuildZoom last verified this license, it had an expiration date of June, 2017. Check the current license status of KLB Construction Inc with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | KLBCOI*153B8 |
| Status | Inactive |
| City | Marysville |
| Type | Contractor |
| Business Type | Corporation |
- According to the The City of Marysville, Washington, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for KLB Construction Inc at the The City of Marysville, Washington.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 13764 |
| Status | Inactive |
| City | Pasco |
| Type | Contr General |
| Business Type | Corporation |
- According to the The City of PASCO, WA, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for KLB Construction Inc at the The City of PASCO, WA.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Zurich American Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Fidelity & Deposit Ins Co Of Maryland |
| Bond Value | $12,000 |
178
Permits
- Building permit records show that KLB Construction Inc has worked on 178 permitted projects.
KLB Construction Inc Employees
BL
BOSA, KELLY LYNN
President
CT
CHRISTENSEN, COREY THOMAS
Treasurer
CC
Corey Christensen
Treasurer
GR
GRADY, WILLIAM ROBERT
Secretary
KB
Kelly Bosa
President
WG
William Grady
Secretary