DouxProcess Directory

Ask for any business in the US.

NAICS 238220 · Plumbing, Heating, and Air-Conditioning Contractors

you asked:

Heating and air conditioning in Langley, WA

Heating and air conditioning in Langley, WA; 245 within 30 miles. Every listing checked against the issuer's record, in the published order.

  1. Ap Mechanical

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Langley, WA

    Proof for Ap Mechanical
    License
    L&I APMECM*799RF
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Dec 9, 2027
    Checked
    Nov 6, 2026
    Where
    Langley, WA · serves Washington
    Phone
    (360) 321-6914
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  2. A & D Mechanical

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Marysville, WA · 9 mi away

    Proof for A & D Mechanical
    License
    L&I DMECHDM902CD
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Apr 25, 2028
    Checked
    Nov 6, 2026
    Where
    Marysville, WA · serves Washington
    Phone
    (425) 923-5923
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  3. Air Systems LLC

    ActiveConstruction contractor, general

    Marysville, WA · 9 mi away

    Proof for Air Systems LLC
    License
    L&I AIRSYSL767CL
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, general
    Expires
    Feb 13, 2028
    Checked
    Nov 6, 2026
    Where
    Marysville, WA · serves Washington
    Phone
    (425) 314-8210
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  4. All Points Heating & Fireplace

    ActiveConstruction contractor, general

    Mukilteo, WA · 10 mi away

    Proof for All Points Heating & Fireplace
    License
    L&I ALLPOPH904QK
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, general
    Expires
    Sep 9, 2027
    Checked
    Nov 6, 2026
    Where
    Mukilteo, WA · serves Washington
    Phone
    (425) 241-2256
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  5. Bel-Red Energy Solutions Llccpi Plumbing & Heating Inc

    ActivePrivate motor carrier

    Mukilteo, WA · 10 mi away

    Proof for Bel-Red Energy Solutions Llccpi Plumbing & Heating Inc
    USDOT registration
    FMCSA 4370400
    Issuer
    FMCSA
    Status
    Active
    Class
    Private motor carrier
    Checked
    Nov 1, 2026
    Where
    Mukilteo, WA · serves Washington
    Phone
    (206) 792-7495
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → FMCSA record
  6. Cascade Boiler Services Inc

    ActiveConstruction contractor, boiler/steam fit/proc piping

    Mukilteo, WA · 10 mi away

    Proof for Cascade Boiler Services Inc
    License
    L&I CASCABS147JT
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, boiler/steam fit/proc piping
    Expires
    Dec 10, 2027
    Checked
    Nov 6, 2026
    Where
    Mukilteo, WA · serves Washington
    Phone
    (425) 775-5002
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  7. Chill Mechanical LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Mukilteo, WA · 10 mi away

    Proof for Chill Mechanical LLC
    License
    L&I CHILLML753Q4
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Dec 18, 2027
    Checked
    Nov 6, 2026
    Where
    Mukilteo, WA · serves Washington
    Phone
    (605) 270-3985
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  8. Coastal Mechanical LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Tulalip, WA · 9 mi away

    Proof for Coastal Mechanical LLC
    License
    L&I COASTML746ML
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Jul 13, 2028
    Checked
    Nov 6, 2026
    Where
    Tulalip, WA · serves Washington
    Phone
    (360) 333-3048
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  9. Corey's Heating and Air LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Mukilteo, WA · 10 mi away

    Proof for Corey's Heating and Air LLC
    License
    L&I COREYHA852NQ
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Oct 10, 2027
    Checked
    Nov 6, 2026
    Where
    Mukilteo, WA · serves Washington
    Phone
    (206) 313-5831
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  10. Dunsmore Heating & Gas Piping

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Clinton, WA · 6 mi away

    Proof for Dunsmore Heating & Gas Piping
    License
    L&I DUNSMHG946C8
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Feb 28, 2028
    Checked
    Nov 6, 2026
    Where
    Clinton, WA · serves Washington
    Phone
    (360) 221-8567
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  11. Island Ductless Solutions LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Freeland, WA · 6 mi away

    Proof for Island Ductless Solutions LLC
    License
    L&I ISLANDS892ND
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Aug 12, 2027
    Checked
    Nov 6, 2026
    Where
    Freeland, WA · serves Washington
    Phone
    (360) 321-4252
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  12. Janes Company Inc, the

    ActiveConstruction contractor, boiler/steam fit/proc piping

    Mukilteo, WA · 10 mi away

    Proof for Janes Company Inc, the
    License
    L&I JANESCI079D2
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, boiler/steam fit/proc piping
    Expires
    Dec 15, 2027
    Checked
    Nov 6, 2026
    Where
    Mukilteo, WA · serves Washington
    Phone
    (425) 267-0202
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  13. Orca Heating & A/C

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Quil Ceda Village, WA · 9 mi away

    Proof for Orca Heating & A/C
    License
    L&I ORCAHC*993DH
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Oct 31, 2027
    Checked
    Nov 6, 2026
    Where
    Quil Ceda Village, WA · serves Washington
    Phone
    (425) 359-9208
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  14. Parker Bros Htng & Cllng LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Marysville, WA · 9 mi away

    Proof for Parker Bros Htng & Cllng LLC
    License
    L&I PARKEBH775K3
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    May 30, 2027
    Checked
    Nov 6, 2026
    Where
    Marysville, WA · serves Washington
    Phone
    (425) 239-6116
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  15. Rain City Mechanical LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Tulalip, WA · 9 mi away

    Proof for Rain City Mechanical LLC
    License
    L&I RAINCCM745OQ
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Sep 25, 2028
    Checked
    Nov 6, 2026
    Where
    Tulalip, WA · serves Washington
    Phone
    (425) 299-6532
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  16. Seatown Electric Heating and Air Corp

    ActivePrivate motor carrier

    Mukilteo, WA · 10 mi away

    Proof for Seatown Electric Heating and Air Corp
    USDOT registration
    FMCSA 3538458
    Issuer
    FMCSA
    Status
    Active
    Class
    Private motor carrier
    Checked
    Nov 1, 2026
    Where
    Mukilteo, WA · serves Washington
    Phone
    (206) 905-4946
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → FMCSA record
  17. Stephen Rice Plumbing

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Tulalip, WA · 9 mi away

    Proof for Stephen Rice Plumbing
    License
    L&I STEPHRP853NK
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Dec 16, 2026
    Checked
    Nov 6, 2026
    Where
    Tulalip, WA · serves Washington
    Phone
    (206) 920-8829
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  18. Whidbey Heating & Stoves LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Greenbank, WA · 8 mi away

    Proof for Whidbey Heating & Stoves LLC
    License
    L&I WHIDBHS934L6
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Nov 14, 2026
    Checked
    Nov 6, 2026
    Where
    Greenbank, WA · serves Washington
    Phone
    (360) 661-5376
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  19. Aarden Air Service LLC

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Marysville, WA · 12 mi away

    Proof for Aarden Air Service LLC
    License
    L&I AARDEAS928KW
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Apr 28, 2027
    Checked
    Nov 6, 2026
    Where
    Marysville, WA · serves Washington
    Phone
    (866) 559-9174
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record
  20. Absolute Gas Services

    ActiveConstruction contractor, heating/vent/air-conditioning and refrig (hvac/r)

    Mill Creek, WA · 15 mi away

    Proof for Absolute Gas Services
    License
    L&I ABSOLGS002BU
    Issuer
    Washington State L&I
    Status
    Active
    Class
    Construction contractor, heating/vent/air-conditioning and refrig (hvac/r)
    Expires
    Mar 8, 2027
    Checked
    Nov 6, 2026
    Where
    Mill Creek, WA · serves Washington
    Phone
    (425) 743-3747
    Listing
    Built from public records. Not claimed yet, so call them directly.
    Proof → Washington State L&I record

More cities in Washington

Free for people · nobody pays to rank. Run one of these businesses? Claim it free.

Checked facts from public license files · Answers may be worded by Claude, an AI model from Anthropic; it never decides facts or order · How ranking works