ContractorHistory

Washington contractor

MECHANICAL TECHNICAL SERVS LLC

Registered in Washington for 5 years

License number
MECHATS794DU
UBI
604631881
Trade
HVAC(all hvac contractors in Washington)
L&I license type and specialty
CONSTRUCTION CONTRACTOR · Heating/Vent/Air-Conditioning and Refrig (HVAC/R)
City
DARRINGTON, WA(all contractors in Darrington)
Phone
(425) 231-2904

Current verification

  • Found: Active Washington contractor registration
  • Found: Current bond record found
  • Found: Current liability insurance record found
  • Found: No Attorney General complaint records found

From the state records below; each section shows its source and when it was last synced.

Registration

Status
ACTIVE
Effective date
April 2, 2021
Expiration date
April 30, 2028

Source: L&I Contractor License Data - General, Washington State Department of Labor & Industries. Last synced October 7, 2026.

Bond

Current bond

  • Bond company
    Westfield Insurance Co
    Bond number
    540651Y
    Amount
    $15,000
    Effective date
    April 23, 2026
    Expiration date
    Until canceled

Bond history

  • Bond company
    Western Surety Co
    Bond number
    67039213
    Amount
    $6,000
    Effective date
    April 23, 2024
    Expiration date
    Not on record
    Cancellation date
    May 21, 2026
  • Bond company
    Western Surety Co
    Bond number
    65421505
    Amount
    $6,000
    Effective date
    March 8, 2021
    Expiration date
    Not on record
    Cancellation date
    April 10, 2022

Source: L&I Contractor License Data - Bond, Washington State Department of Labor & Industries. Last synced October 9, 2026.

Liability insurance

Current policy

  • Carrier
    Liberty Mutual Ins Co
    Policy number
    BKS69083006
    Coverage amount
    $1,000,000
    Effective date
    April 8, 2025
    Expiration date
    April 8, 2027

L&I publishes only the policy currently on file. Earlier policies are kept from our own nightly syncs, which began October 6, 2026.

Source: L&I Contractor License Data - Insurance, Washington State Department of Labor & Industries. Last synced October 9, 2026.

People

Principals L&I lists for this license.

  • Miller, Brandi LinSince March 11, 2021
  • Miller, Eric OliverSince March 11, 2021

Source: L&I Contractor License - Principal Data, Washington State Department of Labor & Industries. Last synced October 9, 2026.

Attorney General complaints

No Attorney General complaint records found.

Matched on business name and city: MECHANICAL TECHNICAL SERVS in DARRINGTON. Complaints filed under another name or city are not included.

A complaint record does not establish that the business violated the law.

Source: Attorney General Consumer Complaints, Washington State Attorney General's Office. Last synced October 9, 2026.

Record history

Changes to this contractor's state records since we began tracking them. The state's current-status tools do not show these.

No changes recorded since our records began on October 6, 2026.

Sources

Record last synced October 7, 2026.

Check this record against the state directly on L&I's Verify a Contractor page (search by license number MECHATS794DU).