Diversified Home Improvements
General · Longview, WA · License #DIVERHI783PU
Diversified Home Improvements is one of 536 General contractors registered in Longview, registered with WA L&I since 2022. Registered longer than roughly 25% of General contractors in Longview. Current filings: $30,000 surety bond (continuous) and $1,000,000 liability coverage through Jan 16, 2027.
How confident can you be in Diversified Home Improvements?
Are they licensed, bonded, and insured?
Active license, $30,000 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 — Diversified Home Improvements 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 Longview.
Do they have jobs on record?
Not yet measured — Diversified Home Improvements 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
- Oct 31, 2022
- Expiration date
- Feb 1, 2027
- UBI
- 601600378
- Business type
- Individual
- Phone
- (360) 749-3862
- Location
- Longview, WA 98632
Source: WA L&I contractor registration — checked Sep 29, 2026. Applies to every row above.
Registration is current through Feb 2027.
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 |
|---|---|---|---|
| Ohio Cas Ins Co | $30,000 | Jan 30, 2025 | Continuous — until canceled |
| Ohio Cas Ins Co | $12,000 | Sep 15, 2022 | Canceled Dec 2, 2024 |
| Insurance company | Amount | Agency | Effective | Expiration |
|---|---|---|---|---|
| Atlantic Casualty Ins Co | $1,000,000 | ARTHUR STRAND INS INC | Jan 16, 2026 | Jan 16, 2027 |
| Atlantic Cas Ins Co | $1,000,000 | ARTHUR STRAND INS INC | Jan 16, 2025 | Jan 16, 2027 |
What the bond and insurance requirements mean for homeowners
Registration as a general contractor in Washington requires a $30,000 surety bond on file with the Department of Labor & Industries. This contractor's current filing shows a $30,000 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 |
|---|---|
| Mark C Coscia | Oct 31, 2022 |
What is a General contractor licensed to do in Washington?
A general contractor in Washington is registered with the Department of Labor & Industries to perform or oversee work in multiple building trades. General contractors can take on whole projects — remodels, additions, new construction — and can hire specialty subcontractors for individual trades. A $30,000 surety bond and general liability insurance, filed with WA L&I, are required for this registration. Washington currently lists 536 General contractors registered in Longview.
Looking for reviews of Diversified Home Improvements?
Subser doesn't have reviews or star ratings. This page shows Diversified Home Improvements's WA L&I record — registration status, bond and liability coverage, and principals on file — plus any endorsements from other licensed contractors.
Own Diversified Home Improvements? Claim the listing free. Worked with Diversified Home Improvements? Endorse them from your own listing.
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Built from Washington State L&I public records, updated Sep 29, 2026. Subser doesn't do star ratings or reviews — just verified records.