HVAC contractors in Arlington, WA

5 active hvac contractors are registered with Washington L&I at a Arlington, WA address. 17 registrations are on record in all, including expired and other statuses.

By the numbers

Active registrations: 5
Registrations on record, all statuses: 17
Registered in the last 12 months: 1
Median years registered, active: 14
Suspension on record: 3
Complaint records matched: 0

Counts of L&I contractor registration records, computed October 8, 2026. Active means the state's record shows ACTIVE status. Years are counted from each registration's effective date.
Suspension on record: registrations with SUSPENDED status, plus active or re-licensed registrations that carry a suspension date.
Complaint records matched: contractors with at least one Attorney General consumer complaint record under the same business name and city. A complaint record is not a finding of wrongdoing.
Sources: L&I Contractor License Data - General andAttorney General Consumer Complaints. Seehow directory numbers are computed.

Longest registered

CUSTOM FLOOR HEATING LLCRegistered since December 1, 2004
NORTHSHORE HEATING LLCRegistered since April 12, 2005
SERVICE MAX HEATING AND AC LLCRegistered since March 5, 2012
NORTHERN COMFORT HTG & COOLINGRegistered since September 11, 2024
DTM SERVICESRegistered since September 10, 2026

Recently registered

DTM SERVICESRegistered on September 10, 2026
NORTHERN COMFORT HTG & COOLINGRegistered on September 11, 2024
SERVICE MAX HEATING AND AC LLCRegistered on March 5, 2012
NORTHSHORE HEATING LLCRegistered on April 12, 2005
CUSTOM FLOOR HEATING LLCRegistered on December 1, 2004

Active registrations, by the effective date on the state's record.

5 active registrations

Businesses by registered name and license number. Show all 17 registrations on record, including expired.

CUSTOM FLOOR HEATING LLCACTIVE
License CUSTOFH962QP · Registered 21 years
DTM SERVICESACTIVE
License DTMSES*741OS · Registered less than 1 year
NORTHERN COMFORT HTG & COOLINGACTIVE
License NORTHCH762OJ · Registered 2 years
NORTHSHORE HEATING LLCACTIVE
License NORTHHL955JK · Registered 21 years
SERVICE MAX HEATING AND AC LLCACTIVE
License SERVIMH885DE · Registered 14 years