KNIGHT CONST / SUPPLY INC
Deer Park, WA
Knight Const. & Supply, Inc. is an active Washington corporation (UBI 600074664) specializing in heavy industrial and hydroelectric construction, dam maintenance, plant rehabilitation, fire suppression systems, and marine construction. Founded in 1968 by Jim and Fern Knight, the company operates from 2601 E 6th St, Deer Park, WA 99006, with a secondary address at 28308 N Cedar Road, Deer Park. The company has 40-51 employees and works primarily for the USACE, PUD Districts, USBR, and US Fish and Wildlife on projects throughout the Missouri, Snake, and Columbia River systems. Principal: Douglas J. Knight. Licensed and bonded since 1972-09-15; registration active through 2028-08-22.
License facts verified August 22, 2026 · Web research from August 22, 2026. Reports refresh automatically as they age.
Hard facts
- WA contractor registrationOK
ACTIVE
source ↗ — retrieved August 22, 2026
- License numberOK
KNIGHCS281ON
source ↗ — retrieved August 22, 2026
- License typeOK
CONSTRUCTION CONTRACTOR
source ↗ — retrieved August 22, 2026
- Registered sinceOK
1972-09-15
source ↗ — retrieved August 22, 2026
- Registration expiresOK
2028-08-22
source ↗ — retrieved August 22, 2026
- BondOK
$30,000 — Western Surety Co
Effective 2024-08-09, expires Until Canceled. Claims against the bond aren't in this dataset — check the L&I verify page.
source ↗ — retrieved August 22, 2026
- Liability insuranceOK
$1,000,000 — Cincinnati Ins Co
source ↗ — retrieved August 22, 2026
- Business entityOK
Corporation — UBI 600074664
source ↗ — retrieved August 22, 2026
- PrincipalOK
KNIGHT, DOUGLAS J
source ↗ — retrieved August 22, 2026
Reputation
Knight Const / Supply Inc maintains a generally positive reputation within industrial and infrastructure sectors, with moderate review presence reflecting its focus on heavy industrial rather than residential work. The company is active and in good standing with Washington L&I. However, it is not positioned as a typical residential home-rebuild contractor.
Reviews by platform
| Platform | Rating | Reviews | Notes |
|---|---|---|---|
| Google (via Birdeye) ↗ | 4.7 out of 5 | 16 | Positive reviews praise craftsmanship and reliability. One negative review from a subcontractor alleges the company took a subcontractor's estimate and performed work in-house without further engagement. |
| Chamber of Commerce ↗ | 4.6 out of 5 | 14 | Listing includes the same negative subcontractor complaint found on Google. |
| BBB (Deer Park, WA) ↗ | — | — | Business is not BBB Accredited. BBB reports insufficient information to issue a rating on this business. |
| BuildZoom ↗ | 100 (top 13% of 128,670 WA contractors) | 0 | No reviews received, but BuildZoom score of 100 ranks in top 13% of licensed Washington contractors. 12 building permits listed for $590,000. |
| Yelp, Angi, HomeAdvisor | — | — | No listings or reviews found on these platforms. |
Complaints
- One subcontractor complaint alleges that after multiple meetings and paperwork filing, Knight Construction took the subcontractor's estimate to the client and performed the job in-house, characterized as 'very shady.' — source ↗
Home-state license
Washington: Active, bonded ($30,000 Western Surety Co.), insured ($1,000,000 Cincinnati Ins Co.), registered since 1972-09-15, expires 2028-08-22 — source ↗
Moderate-to-high confidence that the company website, Deer Park address, LinkedIn profile, and Spokane Journal of Business references all refer to the same entity as WA license KNIGHCS281ON. Cross-references align on address, ownership (Douglas J. Knight), and license number. However, this is primarily an industrial/heavy-construction contractor focused on dam maintenance, hydroelectric projects, and utility infrastructure—not a residential home-rebuild contractor. Homeowners should verify directly whether the company undertakes single-family residential rebuild work. Care should be taken not to confuse this entity with similarly-named but distinct companies in Nebraska, Mississippi, Minnesota, or the Spokane-area 'Black Knight Construction LLC.'
Before you sign
Get a written, detailed contract before work starts or money changes hands
A handshake deal or a one-page estimate leaves a lot unwritten — get the full scope, price, schedule, and payment terms into one signed document. It's commonly recommended you get a written agreement that spells out the scope of work, materials, start and completion dates, total price, and the payment schedule — and that you don't let work begin, or hand over money, until both sides have signed it. If a contractor resists putting terms in writing, treat that reluctance as information in itself.
Be cautious about large upfront deposits
Asking a homeowner for a large deposit or full payment before any work begins is one of the most common patterns in post-disaster contractor scams. It's commonly recommended you keep any upfront deposit small — enough to cover initial materials or permit costs, not the bulk of the contract — and get the exact payment schedule in writing. L&I's hiring-a-contractor guidance covers current specifics; treat pressure for a large deposit as a reason to slow down.
Pay by completed milestone, never ahead of the work
Structuring payment around finished stages — foundation poured, framing complete, roof on — instead of a calendar schedule gives you leverage if something goes wrong partway through. It's commonly recommended you inspect each milestone yourself, or have someone you trust inspect it, before releasing that portion of payment. The final payment shouldn't be due until you're satisfied the work is complete and has passed any required inspections.
Get lien releases from subcontractors and suppliers before final payment
In Washington, subcontractors and material suppliers who aren't paid by your general contractor can potentially place a lien on your property, even if you already paid the general contractor in full. Before making the final payment, it's commonly recommended you ask for signed lien releases (sometimes called lien waivers) from every subcontractor and supplier who worked on the job, so you aren't at risk of paying twice for the same work.
Get a certificate of insurance that names you
A certificate of insurance from the contractor's liability insurer, ideally naming you as an additional interest, is commonly recommended before work starts — it gives you documentation of coverage if a worker is injured on your property or the contractor damages something during the rebuild. Confirm the policy is active and matches what's on file with L&I rather than taking a photocopy at face value.
Verify the license and bond yourself at L&I — don't take their word for it
Every fact in this report links back to its source so you can double-check it, and it's commonly recommended you also look the contractor up directly at L&I's own verification tool (secure.lni.wa.gov/verify) before signing anything, since license and bond status can change after this report was generated. A license number printed on a business card or truck door doesn't confirm the registration is current, active, and actually belongs to the company you're about to hire.
Ask for local references from the last two years, and call them
References from jobs completed in the last two years, ideally similar in scope to yours, are commonly recommended over older or out-of-area references — a lot can change at a company in a few years, especially one that has recently expanded into disaster-rebuild work. Call the references yourself and ask specifically about timeline, communication, change orders, and whether they'd hire the contractor again.
Never sign an assignment of insurance benefits without review
An assignment of benefits (AOB) signs over your right to your own insurance claim payout directly to the contractor — once signed, you can lose much of your ability to control or dispute how that money is handled. It's commonly recommended you have your own insurer review any assignment-of-benefits document before signing, and consider having a lawyer review it too, rather than signing one a contractor hands you on the spot.
This report was assembled automatically from public records and web sources on August 22, 2026. It may contain errors or miss information, and it can go out of date. It is not legal advice, not a recommendation for or against hiring anyone, and not affiliated with any government agency. Always verify at the linked official sources.