Washington L&I Data · Updated Oct 30, 2026Independent and Up to Date · Not a Government Site

HVAC contractor · Seattle, WA

Neudorfer Engineers LLC

Active  Washington registration NEUDOEL787LN · per L&I records

LicensedBondedInsured

Is Neudorfer Engineers LLC Licensed?

Washington L&I records list Neudorfer Engineers LLC with registration number NEUDOEL787LN and status ACTIVE, valid until Jun 15, 2028. The business address on file is in Seattle, WA 98108.

License Details

License #
NEUDOEL787LN
Status
ACTIVE
License type
Construction Contractor
Specialty
Heating/Vent/Air-Conditioning and Refrig (HVAC/R)
First effective
Jun 15, 2022
Expires
Jun 15, 2028
Business type
Limited Liability Company
UBI (state business ID)
600389316
City
Seattle, WA 98108

Bond and Insurance on File

Surety bond
$15,000 · RLI Ins Co
Effective May 28, 2025 · Until Canceled
Liability insurance
$1,000,000 · Continental Insurance Co
Expires Aug 1, 2027

What Active Status Means

The registration is current: L&I has a bond and liability insurance on file and the term has not ended. ACTIVE is necessary but not sufficient, so also check the expiry date, the bond and the insurance below.

Can this business work under this registration? Can work while it stays active.

The registration has 587 days left before it expires on Jun 15, 2028. Check that date against your project timeline.

All status codes are explained in Washington Contractor License Statuses Explained.

How This Record Compares in Seattle

Neudorfer Engineers LLC has held registration NEUDOEL787LN for 4.4 years. The median for the 29 active HVAC contractors with a Seattle address is 5.2 years, and 12 of them have held their registration for 10 years or more, so this registration is newer than most in Seattle. 5 of them registered in the last 12 months.

97% of these Seattle records have a surety bond on file and 100% have liability insurance on file. The median insurance amount on file is $1,000,000; this business lists $1,000,000, which is equal to that median. Insurance amounts are what the insurer reported to L&I; they are not a rating of the business.

Record Timeline

  • Jun 15, 2022: Current registration NEUDOEL787LN took effect.
  • May 28, 2025: $15,000 surety bond with RLI Ins Co took effect.
  • Oct 30, 2026: Our copy of the L&I record was taken.
  • Aug 1, 2027: Continental Insurance Co liability policy on file expires.
  • Jun 15, 2028: Registration expires unless renewed.

Other L&I Registrations Under UBI 600389316

The L&I file lists 1 other contractor registration under the same state business ID (UBI). Older numbers usually reflect renewals under a new number, name changes or a change of business structure.

  • NEUDOEI164PD · Neudorfer Engineers Inc · RE-LICENSED · effective Oct 4, 1984, expires Aug 29, 2022

Checks for HVAC Contractors

How to Verify This Contractor

  1. Use the Confirm on L&I Verify button and search registration NEUDOEL787LN or UBI 600389316. The status there is the official one.
  2. Check that the name on your bid or contract matches Neudorfer Engineers LLC exactly (a limited liability company).
  3. On L&I Verify, look for bond claims, lawsuits and any newer registration.
  4. Ask for a certificate of insurance sent directly by the insurer, and compare it with the Continental Insurance Co policy on file.

A full walkthrough is in How to Check a Contractor License in Washington.

Record data as of , from the Washington L&I contractor file.

Other HVAC Contractors in Seattle

Active hvac contractor registrations with a Seattle address in the same L&I file. Listing here is not an endorsement.

Accuracy notice. Data from Washington L&I open data (public domain, PDDL), not affiliated with any government. Records change; confirm on the official L&I Verify tool before hiring. Search other businesses with the Washington contractor license lookup.

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