Double Check Waterworks
Plumbing · Maple Falls, WA · License #DOUBLCW746KE
Double Check Waterworks is one of 4 Plumbing contractors registered in Maple Falls, registered with WA L&I since 2026. Current filings: $6,000 surety bond (continuous) and $1,000,000 liability coverage through Apr 15, 2027. Principals on record since 2026.
How confident can you be in Double Check Waterworks?
Are they licensed, bonded, and insured?
Active license, $6,000 bond and $1,000,000 liability on file — checked against WA L&I records, updated daily.
Are they who they say they are?
Not yet verified — Double Check Waterworks 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 Maple Falls.
Do they have jobs on record?
Not yet measured — Double Check Waterworks 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
- PLUMBING CONTRACTOR
- Effective date
- May 5, 2026
- Expiration date
- May 5, 2028
- UBI
- 606062937
- Business type
- Limited Liability Company
- Phone
- (425) 281-4836
- Location
- Maple Falls, WA 98266
Source: WA L&I contractor registration — checked Sep 28, 2026. Applies to every row above.
Registration is current through May 2028.
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 |
|---|---|---|---|
| American Contractors Indem CO | $6,000 | Apr 24, 2026 | Continuous — until canceled |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| TOKIO MARINE SPECIALTY INSURAN | $1,000,000 | — | Apr 15, 2026 | Apr 15, 2027 |
What the bond and insurance requirements mean for homeowners
A surety bond and general liability insurance, filed with the Department of Labor & Industries, are a condition of licensing in Washington; the amount varies by license type. This contractor's current filing shows a $6,000 bond.
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.
Principals
| Name | Start date |
|---|---|
| Isaac Keith Colgan | May 5, 2026 |
What is a Plumbing contractor licensed to do in Washington?
A plumbing contractor in Washington holds a plumbing contractor license issued by the Department of Labor & Industries, a separate program from construction contractor registration. Typical work includes water supply and drain, waste and vent piping, fixture installation, water heaters, and repiping. Individual plumbers are additionally certified through the state's plumber certification program; the license shown here is the business-level license. Washington requires a $15,000 surety bond and general liability insurance for this registration. Washington currently lists 4 Plumbing contractors registered in Maple Falls.
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Subser doesn't have reviews or star ratings. This page shows Double Check Waterworks's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
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Built from Washington State L&I public records, updated Sep 28, 2026. Subser doesn't do star ratings or reviews — just verified records.