Flatline Roofing LLC
Roofing · Vancouver, WA · License #FLATLRL827OG
Flatline Roofing LLC is one of 51 Roofing contractors registered in Vancouver, registered with WA L&I since 2018. Registered longer than roughly half of Roofing contractors in Vancouver. Current filings: $15,000 surety bond (continuous) and $1,000,000 liability coverage through Jul 22, 2027.
How confident can you be in Flatline Roofing LLC?
Are they licensed, bonded, and insured?
Active license, $15,000 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 — Flatline Roofing LLC 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 Vancouver.
Do they have jobs on record?
Not yet measured — Flatline Roofing LLC 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
- Sep 7, 2018
- Expiration date
- Sep 17, 2028
- UBI
- 604292923
- Business type
- Limited Liability Company
- Phone
- (360) 980-2636
- Location
- Vancouver, WA 98685
Source: WA L&I contractor registration — checked Sep 27, 2026. Applies to every row above.
Registration is current through Sep 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 |
|---|---|---|---|
| Nationwide Mutual Ins Co | $15,000 | Aug 20, 2026 | Continuous — until canceled |
| Old Republic Surety Co | $15,000 | Jul 1, 2024 | Canceled Oct 4, 2026 |
| Old Republic Surety Co | $6,000 | Aug 20, 2018 | Sep 17, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Admiral Insurance Co | $1,000,000 | ELITE CONT INS SERVICES | Jul 22, 2026 | Jul 22, 2027 |
What the bond and insurance requirements mean for homeowners
To register as a specialty contractor in Washington, a business must file a $15,000 surety bond with the Department of Labor & Industries; general contractors file $30,000. This contractor's current filing shows a $15,000 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 |
|---|---|
| Christopher Lee Sonnengberg | Sep 7, 2018 |
| Martin Phillip Alexander | Sep 7, 2018 |
What is a Roofing contractor licensed to do in Washington?
A roofing specialty contractor is registered with WA L&I to install and repair roofs — shingles, membrane, metal, and other roofing systems, along with associated flashing and underlayment work. The registration covers roofing only. As a condition of registration, contractors in this category file a $15,000 surety bond and proof of general liability insurance with WA L&I. Washington currently lists 51 Roofing contractors registered in Vancouver.
Looking for reviews of Flatline Roofing LLC?
Subser doesn't have reviews or star ratings. This page shows Flatline Roofing LLC's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Flatline Roofing LLC? Claim the listing free. Worked with Flatline Roofing LLC? Endorse them from your own listing.
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Built from Washington State L&I public records, updated Sep 27, 2026. Subser doesn't do star ratings or reviews — just verified records.