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Location and Projects

Address
27208 NE 10TH AVE, unit 110, Ridgefield, WA, 98642
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Seppanen Construction LLC

With more than 25 years of experience in excavation and underground services, Seppanen Construction LLC serves residential and contractor clients throughout Southwest Washington. Based in Ridgefield, the company works across Clark, Cowlitz, Wahkiakum, and Lewis counties. Brian Seppanen, who has operated excavators since high school, leads the business and oversees projects with a focus on septic system installation, septic to sewer conversions, and a range of underground utility work. The team regularly handles both new installations and conversions for homeowners and contractors. Seppanen Construction is known for its knowledge of diverse septic system types and has provided excavation services in the region since 1997.

Seppanen Construction LLC Contact Information

Phone: (602) 637-9500 Edit
Address: 27208 NE 10TH AVE, unit 110, Ridgefield, WA 98642 Edit

Building Permits by Seppanen Construction LLC

Sort by: Notable Notable | Date Date | Job Value Job Value
Route waste lines to new septic system
Valuation:
$2,000
Permit #:
PLM-2018-00883
Status:
complete
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
Approach sidewalk
2025-07-25
Repair or replace existing culvert
Valuation:
N/A
Permit #:
APS-2025-00197
Status:
issued
Fee:
N/A
Permit Type:
Replacement
Building Type:
N/A
Turn plumbingaround under house for new septic system connection
Valuation:
$800
Permit #:
PLM-2017-00351
Status:
complete
Fee:
N/A
Permit Type:
Plumbing
Building Type:
N/A
Plumbing permit
2015-05-01
No Description Available
Valuation:
$2,500
Permit #:
PLB2015-00177
Status:
Final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing permit
2015-10-23
Sewer lateral for tank replacement
Valuation:
N/A
Permit #:
15-05-2880
Status:
final
Fee:
$95
Permit Type:
N/A
Building Type:
N/A
Route plumbing under house from east side to exit the south side - septic system is for temporary modular home
Valuation:
$1,000
Permit #:
PLM-2017-05931
Status:
expired
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A

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