Mayster Heating & Air

Is Mayster Heating & Air Licensed?

Washington L&I records list Mayster Heating & Air with registration number MAYSTHA757DQ and status ACTIVE, valid until Mar 25, 2027. The business address on file is in Lakewood, WA 98499.

License Details

License #

MAYSTHA757DQ

Status

ACTIVE

License type

Construction Contractor

Specialty

General

First effective

Mar 25, 2025

Expires

Mar 25, 2027

Business type

Limited Liability Company

UBI (state business ID)

604408134

City

Lakewood, WA 98499

Bond and Insurance on File

Surety bond

$30,000 · Nationwide Mutual Ins Co
Effective Mar 19, 2026 · Until Canceled

Liability insurance

$1,000,000 · Ohio Security Ins Co
Expires Mar 19, 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 145 days left before it expires on Mar 25, 2027. Check that date against your project timeline.

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

How This Record Compares in Lakewood

Mayster Heating & Air has held registration MAYSTHA757DQ for 1.6 years. The median for the 244 active general contractors with a Lakewood address is 4.6 years, and 69 of them have held their registration for 10 years or more, so this registration is newer than most in Lakewood. 44 of them registered in the last 12 months.

100% of these Lakewood 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

• Mar 25, 2025: Current registration MAYSTHA757DQ took effect.
• Mar 19, 2026: $30,000 surety bond with Nationwide Mutual Ins Co took effect.
• Oct 30, 2026: Our copy of the L&I record was taken.
• Mar 19, 2027: Ohio Security Ins Co liability policy on file expires.
• Mar 25, 2027: Registration expires unless renewed.

Other L&I Registrations Under UBI 604408134

The L&I file lists 2 other contractor registrations under the same state business ID (UBI). Older numbers usually reflect renewals under a new number, name changes or a change of business structure.

• SMPLYEH749K1 · Simply Efficient Htng & Ac LLC · ACTIVE · effective Jun 10, 2026, expires Jun 10, 2028
• SIMPLEH816DR · Simply Efficient Htg & A/C LLC · RE-LICENSED · effective Mar 19, 2019, expires Mar 20, 2027

Checks for General Contractors

• General contractors must file a $30,000 surety bond (RCW 18.27.040, effective July 1, 2024). This record lists a $30,000 bond. See General vs Specialty Contractor Registration in Washington.
• Use a general contractor when the project involves more than one trade. Subcontractors on your job must be registered too.
• Compare bids on scope, schedule and payment terms, not just the total.
• More detail: How to Choose a General Contractor in Washington.

How to Verify This Contractor

1. Use the Confirm on L&I Verify button and search registration MAYSTHA757DQ or UBI 604408134. The status there is the official one.
2. Check that the name on your bid or contract matches Mayster Heating & Air 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 Ohio Security Ins Co policy on file.

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

Record data as of Oct 30, 2026, from the Washington L&I contractor file.

Other General Contractors in Lakewood

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

• 24/7 Roofing Installation LLC · General · expires Feb 26, 2028
• 365 Homes · General · expires Oct 8, 2028
• 4 Seasons Solutions LLC · General · expires Apr 8, 2028
• A & Z Services Inc · General · expires Jan 13, 2027
• A&J Construction · General · expires Mar 4, 2028
• A&R Hernandez Gen Contractor · General · expires Jul 9, 2027
• A&Z Construction Service LLC · General · expires Sep 17, 2027
• A9 Construction LLC · General · expires Apr 22, 2028

Something wrong or want this profile removed? Use the correction or removal request form.