Updated: May 11, 2026
Location and Projects
Address
1500 AZALEA CT, Lynden, WA, 98264
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Four Seasons Htg & Cool Construction
Serving homeowners throughout Whatcom, Skagit, and Snohomish Counties, Four Seasons Heating & Cooling, LLC operates from Lynden, WA as a family-owned business founded in 2013. Owner Aaron Nosbusch, a second-generation HVAC journeyman with more than 25 years of experience, leads the company with a focus on residential heating and air conditioning solutions. Four Seasons’ services include furnace repairs during winter months and AC tune-ups and maintenance in the summer, supporting year-round comfort for local families. Over his career, Aaron has completed a range of HVAC work from large commercial projects to detailed home installations and repairs, but now centers his expertise on serving residential clients within the surrounding communities.
Four Seasons Htg & Cool LLC Services
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Four Seasons Htg & Cool LLC Contact Information
Phone Number: (606) 314-0580
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Address: 1500 AZALEA CT, Lynden, WA 98264
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Building Permits by Four Seasons Htg & Cool LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition air conditioning to existing furnace
Valuation:
$5,000
Permit #:
MEC2020-0348
Status:
final
Fee:
$50
Permit Type:
Residential furna...
Building Type:
N/A
Install air conditioning to existing furnace. - scott
Valuation:
$4,500
Permit #:
MEC2018-0476
Status:
final
Fee:
$50
Permit Type:
Residential furna...
Building Type:
N/A
Install ductless heat pump
Valuation:
$4,500
Permit #:
MEC2019-0295
Status:
final
Fee:
$50
Permit Type:
New or altered sy...
Building Type:
N/A
Install ductless heat pump
Valuation:
$4,500
Permit #:
MEC2019-0295
Status:
final
Fee:
$50
Permit Type:
New or altered sy...
Building Type:
N/A
Replace furnace addition air conditioning
Valuation:
N/A
Permit #:
M1405-063
Status:
final
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
T-stat for air conditioning
Valuation:
N/A
Permit #:
E1405-176
Status:
final
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Chomthanat residence - mechanical
Valuation:
$0
Permit #:
CMEC-2150892
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install air conditioning replace & gas furnace
Valuation:
N/A
Permit #:
MEC2017-0281
Status:
final
Fee:
$125
Permit Type:
Residential furna...
Building Type:
N/A
Adding new circuit for air conditioning
Valuation:
N/A
Permit #:
ELE2017-0841
Status:
final
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
20119-SFR-MECH
Status:
expired
Fee:
$164
Permit Type:
N/A
Building Type:
N/A
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Four Seasons Htg & Cool LLC License info
Verified License
| License # | FOURSSH872OK |
| Status | Active |
| City | Tukwila |
| Type | Electrical Contractor, Hvac/Rfrg |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Four Seasons Htg & Cool LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | FOURSSH876LP |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of October, 2025. Check the current license status of Four Seasons Htg & Cool LLC with the The City of Tukwila, WA
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FOURSSH876LP |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Four Seasons Htg & Cool LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FOURSSH872OK |
| Status | Active |
| State | Washington |
| Type | Electrical Contractor, Electrical Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Four Seasons Htg & Cool LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Insured
| Insurer | Nationwide Mutual Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Wesco Insurance Co |
| Bond Value | $4,000 |
7
Permits
- Building permit records show that Four Seasons Htg & Cool LLC has worked on 7 permitted projects.
Four Seasons Htg & Cool LLC Employees
AN
Aaron Nosbusch
Agent
NM
Nosbusch, Aaron M
Owner
NM
Nosbusch, Aaron Michael
Owner