Updated: May 08, 2026
Location and Projects
Address
333 E Blackburn Rd, Mount Vernon, WA, 98273
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Foss Heating & Cooling
Foss Heating & Cooling is the trusted choice for HVAC services in Mount Vernon, WA and the surrounding area. We offer installation, repair and maintenance services on heating and air conditioning systems including boilers, furnaces, fireplaces, stoves, radiant heating systems, heat pumps, central air conditioners, geothermal systems and more. Whether you need a repair on your heating system or are looking to install a new air conditioner in your home, we have you covered! Give us a call today to schedule heating and air conditioning services in Mount Vernon, WA and the surrounding area. Visit our website at www.fossheating.com to learn more about our services.
From BuildZoom: Foss Heating & Cooling, 333 E Blackburn Rd, Mount Vernon, WA (Employees: Lawrence Pirkle, Roger Foss, and William Gravely) holds a Construction Contractor, General license and 3 other licenses according to the Tukwila license board.
Their BuildZoom score of 114 ranks in the top 2% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Foss Heating & Cooling, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Foss Heating & Cooling Services
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Foss Heating & Cooling Contact Information
Phone Number: (360) 336-1517
Address: 333 E Blackburn Rd, Mount Vernon, WA 98273
Foss Heating & Cooling Mount Vernon
Quality
114
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Foss Heating & Cooling has a BuildZoom score of 114, which places them above 98% of 128,670 contractors in Washington.
Activity
|
2 projects
|
2026 |
|
142 projects
|
2025 |
|
107 projects
|
2024 |
|
116 projects
|
2023 |
Our building permit records indicate that Foss Heating & Cooling has worked on at least
367.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
4 projects
|
Home Additions |
|
340 projects
|
Mechanical projects |
|
324 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Foss Heating & Cooling mostly works on
mechanical project
and hvac project
projects.
Pricing
|
10 projects
|
< $5k |
|
6 projects
|
$5k-$20k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Foss Heating & Cooling
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace 80% efficient tankless in a downstairs utility room with 90% efficient tankless water heater
Valuation:
N/A
Permit #:
PLMR-2025-0018
Status:
expired
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning unit with furnace and heat pump. replace electric water heater with like in kind. replace electric baseboard heater with oil based baseboard unit
Valuation:
N/A
Permit #:
BP23-0419
Status:
expired
Fee:
$152
Permit Type:
N/A
Building Type:
N/A
Ma: replace existing 80% gas boiler with new high efficiency boiler for radiant heating only
Valuation:
N/A
Permit #:
MECR-2025-0191
Status:
final
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace existing gas furnace in garage with like in kind addition coil and heat pump
Valuation:
N/A
Permit #:
MECR-2025-0158
Status:
final
Fee:
$180
Permit Type:
N/A
Building Type:
N/A
Addition mini-split heat pump to club house building on thousand trails property
Valuation:
$11,157
Permit #:
MECC-2025-0006
Status:
issued
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace existing 50 gal gas tank water heater in garage with like in kind
Valuation:
N/A
Permit #:
PLMR-2025-0049
Status:
final
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace existing 90% gas furnace in an interior closet with like in kind
Valuation:
N/A
Permit #:
MECR-2025-0049
Status:
final
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Installing a 1:1 heat pump minisplit in a commercial salon space
Valuation:
$10,373
Permit #:
FLOOD-2025-0011
Status:
issued
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Replace existing gas furnace in mechanical closet with like in kind
Valuation:
N/A
Permit #:
MECR-2025-0127
Status:
final
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Install 2 new separate ductless mini-split systems. 1:1 and 3:1
Valuation:
N/A
Permit #:
MECR-2025-0071
Status:
final
Fee:
$180
Permit Type:
N/A
Building Type:
N/A
Replace existing heat pump and air handler with like in kind
Valuation:
N/A
Permit #:
MECR-2025-0153
Status:
expired
Fee:
$180
Permit Type:
N/A
Building Type:
N/A
Replace ducted electric furnace with heat pump/air handler
Valuation:
N/A
Permit #:
MECR-2025-0131
Status:
final
Fee:
$180
Permit Type:
N/A
Building Type:
N/A
Replace existing heat pump/furnace with heat pump/air handler
Valuation:
N/A
Permit #:
MECR-2025-0028
Status:
final
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replacing gas furnace with heat pump system. adding additional heat pump system. replacing 75 gal water heater with like in kind
Valuation:
N/A
Permit #:
BP23-0175
Status:
final
Fee:
$86
Permit Type:
N/A
Building Type:
N/A
Replace 40 gal lp tank water heater with like in kind
Valuation:
N/A
Permit #:
PLMR-2025-0060
Status:
expired
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace existing tankless water heater with like in kind
Valuation:
N/A
Permit #:
PLMR-2025-0029
Status:
expired
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace existing high efficiency boiler with like in kind
Valuation:
N/A
Permit #:
FLOOD-2025-0036
Status:
issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Replace existing high efficiency boiler with like in kind
Valuation:
$0
Permit #:
MECR-2025-0086
Status:
expired
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace existing gas furnace in garage with like in kind
Valuation:
$0
Permit #:
MECR-2025-0079
Status:
expired
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace existing gas shop heater with like in kind
Valuation:
$7,854
Permit #:
MECC-2025-0005
Status:
final
Fee:
$357
Permit Type:
N/A
Building Type:
N/A
Foss Heating & Cooling Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Foss Heating & Cooling License info
Verified License
| License # | FOSSHCI983QA |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Corporation |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Foss Heating & Cooling at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FOSSHCI9858A |
| Status | Active |
| City | Tukwila |
| Type | Electrical Contractor, Hvac/Rfrg |
| Class | Corporation |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Foss Heating & Cooling at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FOSSHCI983QA |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Foss Heating & Cooling 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 # | FOSSHCI9858A |
| Status | Active |
| State | Washington |
| Type | Electrical Contractor, Electrical Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Foss Heating & Cooling at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
114
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Lexon Ins Co |
| Bond Value | $12,000 |
840
Permits
- Building permit records show that Foss Heating & Cooling has worked on 840 permitted projects.
Foss Heating & Cooling Employees
LP
Lawrence Pirkle
Agent
RF
Roger Foss
President
WG
William Gravely
Treasurer
WG
William Gravley
Vice President