Updated: Apr 19, 2026
Location and Projects
Address
19003 80TH AVE NE, Bothell, WA, 98028
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Capstone Mechanical LLC
Capstone Mechanical LLC, 19003-80 Th Ave NE, Bothell, WA (Owned by: Espinoza, Giovanny) holds a Electrical Contractor, General license and 4 other licenses according to the Tukwila license board.
Their BuildZoom score of 103 ranks in the top 10% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Capstone Mechanical LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Capstone Mechanical LLC Contact Information
Phone Number: (425) 591-6914
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Address: 19003 80TH AVE NE, Bothell, WA 98028
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Capstone Mechanical LLC Bothell
Quality
103
90th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Capstone Mechanical LLC has a BuildZoom score of 103, which places them above 90% of 128,670 contractors in Washington.
Activity
|
9 projects
|
2025 |
|
2 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Capstone Mechanical LLC has worked on at least
12.0 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
|
3 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Capstone Mechanical LLC mostly works on
mechanical project
projects.
Pricing
|
1 project
|
$20k-$50k |
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 Capstone Mechanical LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Converting an existing amenity space to a new r-2 dwelling unit. addition of (1) new wshp heat pump (with airside economizer) (1) new bathroom exhaust fan (1) new erv (1) dryer exhaust system (1) domestic range exhaust. outside air and exhaust air through existing louvers. 25-106712 by
Valuation:
N/A
Permit #:
25 110685 BL
Status:
issued
Fee:
$823
Permit Type:
N/A
Building Type:
N/A
Provide through wall assemblies for review as part of permit corrections issued to electrical-telecomm permit construction. no additional construction within the building 2024 116987 000 00 bf
Valuation:
N/A
Permit #:
25 101686 BZ
Status:
issued
Fee:
$631
Permit Type:
N/A
Building Type:
N/A
A multifamily residential alteration to existing structure. project involving (6 bathroom fan). see previous permit(s) 25 106395 bk (for units 406 407). 25 106221 bk (unit 1408)
Valuation:
N/A
Permit #:
25 109229 BK
Status:
issued
Fee:
$92
Permit Type:
N/A
Building Type:
N/A
A single family condo unit alteration to existing structure electrical project involving (1 heat pump 1 added or altered branch circuits)
Valuation:
N/A
Permit #:
25 107764 BF
Status:
final
Fee:
$211
Permit Type:
N/A
Building Type:
N/A
A multifamily residential alteration to existing structure. project involving (24 bathroom fan). see previous permit 25 106395 bk
Valuation:
N/A
Permit #:
25 109537 BK
Status:
final
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
A single family condo unit alteration to existing structure none project involving (1 ductless heat pump)
Valuation:
N/A
Permit #:
25 106221 BK
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Type: electrical single family class: alteration to structure or system, , jackson/vanvalkenberg (bsf23-02602): installing 1 range or oven - circuit; 27 light fixture - circuit; 32 receptacle - circuit; 27 switch - circuit
Valuation:
N/A
Permit #:
ESF23-05422
Status:
final
Fee:
$616
Permit Type:
N/A
Building Type:
N/A
A multifamily residential repair or replacement none project involving (1 water heater
Valuation:
N/A
Permit #:
25 111470 BK
Status:
issued
Fee:
$125
Permit Type:
N/A
Building Type:
N/A
Remodel in kitchen dining primary bed and downstairs laundry bedrooms. (1) generator + (3) low voltage + (6) circuits - 2023 nec
Valuation:
$26,000
Permit #:
ELEC-2024-07441
Status:
final
Fee:
$455
Permit Type:
N/A
Building Type:
N/A
A multifamily residential alteration to existing structure none project involving (10 bathroom fan)
Valuation:
N/A
Permit #:
25 124285 BK
Status:
issued
Fee:
$158
Permit Type:
N/A
Building Type:
N/A
Adding a new unit level 5. includes new panel
Valuation:
N/A
Permit #:
25 110570 BG
Status:
issued
Fee:
$812
Permit Type:
N/A
Building Type:
N/A
A multifamily residential alteration to existing structure none project involving (1 dryer exhaust duct)
Valuation:
N/A
Permit #:
23 105455 BK
Status:
final
Fee:
$66
Permit Type:
N/A
Building Type:
N/A
A multifamily residential alteration to existing structure none project involving (1 bathroom fan)
Valuation:
N/A
Permit #:
23 108487 BK
Status:
final
Fee:
$96
Permit Type:
N/A
Building Type:
N/A
Provide a new heat recovery unit for ventilation only for new maintenance shop.; 22 112042 by
Valuation:
N/A
Permit #:
23 102818 BL
Status:
final
Fee:
$399
Permit Type:
N/A
Building Type:
N/A
A nonresidential alteration to existing structure none project involving (15 diffusers or grilles =
Valuation:
N/A
Permit #:
21 118312 BK
Status:
final
Fee:
$172
Permit Type:
N/A
Building Type:
N/A
Type: mechanical single family - msf class: alteration to structure or system, , diaconu residence: installing exhaust fan with ducts
Valuation:
N/A
Permit #:
MSF19-07068
Status:
final
Fee:
$89
Permit Type:
N/A
Building Type:
N/A
Install ductless split system to new package room. install outside air ventilation
Valuation:
N/A
Permit #:
20 102519 BL
Status:
final
Fee:
$677
Permit Type:
N/A
Building Type:
N/A
Type: plumbing single family - psf class: alteration to structure or system rich suite 202-replace water heater (electric) in same location
Valuation:
N/A
Permit #:
PSF18-00850
Status:
Issued
Fee:
$46
Permit Type:
N/A
Building Type:
N/A
Type: mechanical single family - msf class: alteration to structure or system rich-suite 202-replace air handler (in unit 202)
Valuation:
N/A
Permit #:
MSF18-00851
Status:
Issued
Fee:
$45
Permit Type:
N/A
Building Type:
N/A
Electrical circuit project
Valuation:
N/A
Permit #:
2307-221
Status:
expired
Fee:
$237
Permit Type:
N/A
Building Type:
N/A
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Capstone Mechanical LLC Reviews
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Verified License
BuildZoom confirmed this contractor's license
Capstone Mechanical LLC License info
Verified License
| License # | CAPSTML770LM |
| Status | Active |
| City | Tukwila |
| Type | Electrical Contractor, General |
| 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 Capstone Mechanical LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CAPSTML895D9 |
| Status | Active |
| City | Tukwila |
| Type | Construction Contractor, General |
| 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 Capstone Mechanical LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CAPSTML770LM |
| Status | Active |
| State | Washington |
| Type | Electrical Contractor, Electrical Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Capstone Mechanical 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 # | CAPSTML895D9 |
| 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 Capstone Mechanical LLC 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 # | CAPSTML894LP |
| Status | Inactive |
| State | Washington |
| Type | Electrical Contractor, Electrical Contractor |
| Business Type | 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 Capstone Mechanical LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
103
BuildZoom Score
Insured
| Insurer | Liberty Northwest Ins Corp |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | American Contractors Indem Co |
| Bond Value | $12,000 |
39
Permits
- Building permit records show that Capstone Mechanical LLC has worked on 39 permitted projects.
Capstone Mechanical LLC Employees
EG
Espinoza, Giovanny
Owner
EF
Espinoza, Giovanny Francisco
Owner
GE
Giovanny Espinoza
Partner/Member