On-Site Testing
Plumbing Specialty · Bellingham, WA · License #ONSITT*014CR
Re-licensed per WA L&I — this registration was replaced.
WA L&I status: RE-LICENSED
On-Site Testing is one of 14 Plumbing Specialty contractors registered in Bellingham, registered with WA L&I since 1999. Registered longer than roughly 75% of Plumbing Specialty contractors in Bellingham.
How confident can you be in On-Site Testing?
Are they licensed, bonded, and insured?
Registration not currently active per WA L&I.
Are they who they say they are?
Not yet verified — On-Site Testing hasn't claimed this listing. Own this business? Claim it free.
Do other pros stand behind them?
No endorsements yet from other licensed contractors in Bellingham.
Do they have jobs on record?
Not yet measured — On-Site Testing hasn't run jobs through Subser. Performance data comes from real jobs, not reviews.
Subser doesn't do star ratings or reviews — just verified records. What do these mean?
License facts
- License type
- CONSTRUCTION CONTRACTOR
- Effective date
- Feb 19, 1999
- Expiration date
- Feb 19, 2023
- UBI
- 600242074
- Business type
- Individual
- Phone
- (360) 671-1557
- Location
- Bellingham, WA 98225
Source: WA L&I contractor registration — checked Sep 26, 2026. Applies to every row above.
Is this your business? Claim it free to verify ownership — takes about two minutes.
Claim this free listingBond & insurance on file
| Bond firm | Amount | Effective | Expiration |
|---|---|---|---|
| TRAVELERS CAS & SURETY CO | $6,000 | Feb 19, 2002 | Canceled Jun 6, 2023 |
What the bond and insurance requirements mean for homeowners
A $15,000 surety bond, filed with the Department of Labor & Industries, is a condition of registration for specialty contractors in Washington (general contractors file $30,000).
The bond is a limited fund a homeowner (or subcontractor or supplier) can make a claim against, through the courts, if a registered contractor fails to meet its obligations on a job. Contractors must also keep general liability insurance on file — at least $50,000 in property damage and $200,000 in public liability coverage, or a $250,000 combined single limit — which covers damage the contractor causes, not workmanship disputes. The rows above are the bond and insurance filings L&I publishes for this registration; whether a specific filing applies to a specific project depends on its dates and terms.
What is a Plumbing Specialty contractor licensed to do in Washington?
A plumbing specialty contractor registration with WA L&I covers plumbing installation and repair work. Individual plumbers in Washington are additionally certified through a separate state plumber-certification program; the contractor registration shown here is the business-level registration. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 14 Plumbing Specialty contractors registered in Bellingham.
Looking for reviews of On-Site Testing?
Subser doesn't have reviews or star ratings. This page shows On-Site Testing's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own On-Site Testing? Claim the listing free. Worked with On-Site Testing? Endorse them from your own listing.
Other Plumbing Specialty contractors in Bellingham, WA
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Barkley Plumbing
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Ben The Plumber INC
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Built from Washington State L&I public records, updated Sep 26, 2026. Subser doesn't do star ratings or reviews — just verified records.