Updated: May 12, 2026
Location and Projects
Address
700 NW GILMAN BLVD E-103-313, Issaquah, WA, 98027
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Furnace Aid
Furnace Aid, 700 NW Gilman Blvd, Issaquah, WA (Owned by: Owner) holds a Electrical Contractor, Hvac/Rfrg license and 10 other licenses according to the Tukwila license board.
Their BuildZoom score of 110 ranks in the top 4% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Furnace Aid, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Furnace Aid Contact Information
Phone Number: (360) 568-7029
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Address: 700 NW GILMAN BLVD E-103-313, Issaquah, WA 98027
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Furnace Aid Issaquah
Quality
110
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Furnace Aid has a BuildZoom score of 110, which places them above 96% of 128,670 contractors in Washington.
Activity
|
8 projects
|
2025 |
|
5 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Furnace Aid has worked on at least
18.0 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
|
16 projects
|
Mechanical projects |
|
16 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Furnace Aid mostly works on
hvac project
and mechanical project
projects.
Pricing
|
1 project
|
< $5k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Peoples mechanical a (single family residential) (repair or replacement) project involving 1 furnace 100 000 btu or less interior
Valuation:
N/A
Permit #:
MEC24-00423
Status:
final
Fee:
$62
Permit Type:
N/A
Building Type:
N/A
Miller mechanical, a (single family residential) (repair or replacement) project involving 1 furnace 100, 000 btu or less 1 air conditioner
Valuation:
N/A
Permit #:
MEC22-00366
Status:
final
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2025-03370
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2025-02317
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2025-01049
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(1) gas water heater 2021 imc water tank swap out like for like
Valuation:
$4,000
Permit #:
MECH-2025-06524
Status:
final
Fee:
$189
Permit Type:
N/A
Building Type:
N/A
A single family residential repair or replacement none project involving (1 furnace
Valuation:
N/A
Permit #:
24 112100 BK
Status:
final
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
A single family residential repair or replacement none project involving (1 furnace
Valuation:
N/A
Permit #:
22 114001 BK
Status:
expired
Fee:
$107
Permit Type:
N/A
Building Type:
N/A
Bergamaschi building residential a (single family residential) (repair or replacement) project involving 1 furnace
Valuation:
N/A
Permit #:
BLD2021-00660
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
A single family residential repair or replacement none project involving (1 air conditioner)
Valuation:
N/A
Permit #:
23 117922 BK
Status:
issued
Fee:
$66
Permit Type:
N/A
Building Type:
N/A
A single family residential repair or replacement none project involving (1 air conditioner)
Valuation:
N/A
Permit #:
23 117194 BK
Status:
issued
Fee:
$66
Permit Type:
N/A
Building Type:
N/A
Tremper building residential a (single family residential) (repair or replacement) project involving 1 furnace 1 air conditioner
Valuation:
N/A
Permit #:
BLD2020-03328
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2023-02909
Status:
issued
Fee:
$0
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2023-01750
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2023-00724
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Hiebert building residential a (single family residential) (repair or replacement) project involving 1 water heater - gas less than 60 gallons
Valuation:
N/A
Permit #:
BLD2019-03063
Status:
issued
Fee:
$114
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2025-04508
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2025-03840
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2025-03828
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building residential
Valuation:
N/A
Permit #:
BLD2024-02423
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Furnace Aid Reviews
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Verified License
BuildZoom confirmed this contractor's license
Furnace Aid License info
Verified License
| License # | FURNAAL860LO |
| Status | Active |
| City | Tukwila |
| Type | Electrical Contractor, Hvac/Rfrg |
| Class | Limited Liability Company |
| Business Type | Individual, Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Furnace Aid at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FURNAAL867L3 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, Heating/Vent/Air Conditioning And Refrig (Hvac/R) |
| Class | Limited Liability Company |
| Business Type | Individual, Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Furnace Aid at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | FURNAAL860LO |
| Status | Active |
| State | Washington |
| Type | Electrical Contractor, Electrical Contractor |
| Business Type | Individual, Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Furnace Aid 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 # | FURNAAL867L3 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Limited Liability Company |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Furnace Aid at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | FURNAA*066PW |
| Status | Active |
| City | Sammamish |
| Type | Contractor |
| Business Type | Individual, Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of December, 2021. Check the current license status of Furnace Aid with the The City of Sammamish, WA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | FURNAA*066PW |
| Status | Active |
| City | Sammamish |
| Type | Contractor |
| Business Type | Individual, Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of Furnace Aid with the The City of Sammamish, WA
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | FURNAA 002L7 |
| Status | Active |
| State | Washington |
| Type | Electrical Contractor, Hvac/Rfrg |
| Business Type | Individual, Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of Furnace Aid with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | FURNAA 066PW |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Heating/Vent/Air-Conditioning And Refrig Hvac/R |
| Business Type | Individual, Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of June, 2016. Check the current license status of Furnace Aid with the Washington State Department of Labor & Industries
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | ELECTI*226BW |
| Status | Inactive |
| City | Marysville |
| Type | Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the The City of Marysville, Washington, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Furnace Aid at the The City of Marysville, Washington.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | FURNAA*002L7 |
| Status | Inactive |
| State | Washington |
| Type | Electrical Contractor, Electrical Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Furnace Aid at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | FURNAA*066PW |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Individual, Limited Liability Company |
- According to the Washington State Department of Labor & Industries, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Furnace Aid at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
110
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Contractors Bonding & Insurance Co |
| Bond Value | $6,000 |
89
Permits
- Building permit records show that Furnace Aid has worked on 89 permitted projects.
Furnace Aid Employees
CG
Cody Gustafson
Partner/Member
DG
Diane Gustafson
Partner/Member
GK
Gustafson, Diane K
Owner
GS
Gustafson, Leonard Skip
Owner
JG
Jordan Gustafson
Partner/Member
LG
L Gustafson
Owner
LG
Leonard Gustafson
Partner/Member
O
Owner
Owner