Updated: May 12, 2026
Location and Projects
Address
PO BOX 65, Redmond, WA, 98073
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Gs Mechanical LLC
Gs Mechanical LLC, Redmond, Po Box 65, Redmond, WA (Owned by: Smalling, Gregory Gary) holds a Plumbing Contractor, Journey Level license and 4 other licenses according to the Tukwila license board.
Their BuildZoom score of 111 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 Gs Mechanical LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Gs Mechanical LLC Contact Information
Phone Number: (206) 372-0332
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Address: PO BOX 65, Redmond, WA 98073
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Gs Mechanical LLC Redmond
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Gs Mechanical LLC has a BuildZoom score of 111, which places them above 96% of 128,670 contractors in Washington.
Activity
|
14 projects
|
2025 |
|
16 projects
|
2024 |
|
15 projects
|
2023 |
Our building permit records indicate that Gs Mechanical LLC has worked on at least
45.0 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
|
6 projects
|
Commercial Renovations |
|
4 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Gs Mechanical LLC mostly works on
commercial renovation
and new construction
projects.
Pricing
|
1 project
|
< $5k |
|
4 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
The typical size of their permits is approximately $6,500. This graph shows the distribution of these job values.
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.
Eden health tenant improvement suite 315|when submitting an application please ensure you have attached all required documents.|certification: by using this p-ortal to apply for permits i certify i am the owner of the property or the owner's authorized agent. if acting as an authorized agent i further certify that i have full power and authority to file this application and to perform... see more
Valuation:
N/A
Permit #:
PG25-0093
Status:
issued
Fee:
$988
Permit Type:
Non-residential
Building Type:
N/A
Opeiu local 8|when submitting an application please ensure you have attached all required documents.|certification: by using this p-ortal to apply for permits i certify i am the owner of the property or the owner's authorized agent. if acting as an authorized agent i further certify that i have full power and authority to file this application and to perform on behalf of the owner all... see more
Valuation:
N/A
Permit #:
PG25-0053
Status:
issued
Fee:
$192
Permit Type:
Non-residential
Building Type:
N/A
Lifecenter nw- plumbing for tenant improvement. bld2024-0583
Valuation:
N/A
Permit #:
BLD2025-0240
Status:
issued
Fee:
$129
Permit Type:
N/A
Building Type:
N/A
Plumbing rough-in & fixtures for office tenant improvement. including sanitary waste & vent & domestic water. (1) dishwasher (1) drink fountain (3) bathroom sinks (2) kitchen sinks (3) toilets 2021 upc
Valuation:
$35,000
Permit #:
PLUM-2024-03715
Status:
final
Fee:
$570
Permit Type:
N/A
Building Type:
N/A
New plumbing consists of the installation of new plumbing fixtures and modification of existing sanitary and water lines to accommodate the spaces being added: a single occupancy toilet room locker room with showers toilets and lavatories route setting room and a janitors closet. floor drains and a hot water heater are being added in the route setting room 19123773bb
Valuation:
N/A
Permit #:
23 105859 BO
Status:
final
Fee:
$597
Permit Type:
N/A
Building Type:
N/A
Radiant logistics suite 410 - plumbing associated with tenant improvement rough-in and fixtures for one (1) breakroom sink with tankless electric heater and floor drain for ice machine
Valuation:
$6,000
Permit #:
P23002906
Status:
complete
Fee:
$201
Permit Type:
N/A
Building Type:
N/A
A nonresidential alteration to existing structure none project involving (1 dishwasher)
Valuation:
N/A
Permit #:
25 105245 BN
Status:
final
Fee:
$68
Permit Type:
N/A
Building Type:
N/A
Interior tenant improvement of existing edgework''s space with a new garage door opening on exterior facade. interior renovations include new locker rooms yoga room weight room retail and office spaces 22 116744 bz
Valuation:
N/A
Permit #:
22 117276 BO
Status:
final
Fee:
$651
Permit Type:
N/A
Building Type:
N/A
Plumbing rough-in & fixtures for new restrooms janitor's closet & lounge areas
Valuation:
N/A
Permit #:
25 106097 BO
Status:
issued
Fee:
$1,066
Permit Type:
N/A
Building Type:
N/A
E22-52044 lmj tenant improvement, : (revised description for accuracy). plumbing garage drain service lines w/cleanout and trap primer fire riser room 106
Valuation:
N/A
Permit #:
PNR2022-32630
Status:
final
Fee:
$1,819
Permit Type:
N/A
Building Type:
N/A
Plumbing- for tenant improvement bld2022-0789, plumbing rough-in and fixtures for clinical space remodel including exam rooms toilet and break room
Valuation:
N/A
Permit #:
BLD2022-1587
Status:
final
Fee:
$365
Permit Type:
N/A
Building Type:
N/A
(1) shower/valve replacement (1) bathroom sink (1) toilet 2021 upc - plumbing rough-in & fixtures new ada shower room
Valuation:
$10,000
Permit #:
PLUM-2025-05982
Status:
final
Fee:
$287
Permit Type:
N/A
Building Type:
N/A
601 monster rd sw warehouse. plumbing underground including sanitary waste vent and drainage fixtures. 52 floor drains
Valuation:
$250,000
Permit #:
P20004108
Status:
complete
Fee:
$898
Permit Type:
N/A
Building Type:
N/A
Cline jewelers- plumbing for tenant improvement bld2023-04, plumbing rough-in and fixtures for restrooms break area and jewelers room
Valuation:
N/A
Permit #:
BLD2023-0477
Status:
final
Fee:
$655
Permit Type:
N/A
Building Type:
N/A
E22-52839 plumbing rough in and fixtures for restrooms and break area associated with tenant improvement for suite 102 thyssenkrupp (1st time) 21, 972 sq ft. tenant improvement. (suite b)
Valuation:
N/A
Permit #:
PNR2022-32667
Status:
final
Fee:
$1,624
Permit Type:
N/A
Building Type:
N/A
A nonresidential alteration to existing structure none project involving (1 toilet 1 bathroom sink 2 sink) na
Valuation:
N/A
Permit #:
25 118772 BN
Status:
final
Fee:
$119
Permit Type:
N/A
Building Type:
N/A
One cold waterline for tenant provided water cooler -
Valuation:
N/A
Permit #:
BLD2025-0862
Status:
final
Fee:
$129
Permit Type:
N/A
Building Type:
N/A
A nonresidential alteration to existing structure none project involving (4 toilet 4 bathroom sink 1 kitchen sink 1 water heater electric
Valuation:
N/A
Permit #:
24 112371 BN
Status:
final
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Project tiger. plumbing permit for new food processing facility
Valuation:
$900,000
Permit #:
P20002550
Status:
complete
Fee:
$2,252
Permit Type:
N/A
Building Type:
N/A
Type: plumbing non residential class: alteration to structure or system, , nortal us: project installing (2) hot water heater; (1) bar sink; (1) kitchen sink
Valuation:
N/A
Permit #:
PNR21-04829
Status:
final
Fee:
$104
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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Avg Project
-
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129
BZ Score
$11.6K
Avg Project
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Projects
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BZ Score
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Avg Project
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Projects
Gs Mechanical LLC Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Gs Mechanical LLC License info
License Not Verified
| License # | GSMECML795RW |
| Status | Active |
| City | Tukwila |
| Type | Plumbing Contractor, Journey Level |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- When BuildZoom last verified this license, it had an expiration date of December, 2025. Check the current license status of Gs Mechanical 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 # | GSMECML795RW |
| Status | Active |
| State | Washington |
| Type | Plumbing Contractor, Plumbing Contractor |
| Business Type | Limited Liability Company |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Gs 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 # | GSMECML928RK |
| Status | Inactive |
| City | Marysville |
| Type | Contractor |
| Business Type | 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 Gs Mechanical LLC at the The City of Marysville, Washington.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | GSMECML928RK |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction 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 Gs 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 # | GSMECML928RK |
| Status | Inactive |
| City | Tukwila |
| Type | Construction Contractor, General |
| Class | Limited Liability Company |
| Business Type | Limited Liability Company |
- According to the The City of Tukwila, WA, 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 Gs Mechanical LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
111
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Cbic |
| Bond Value | $12,000 |
232
Permits
- Building permit records show that Gs Mechanical LLC has worked on 232 permitted projects.
Gs Mechanical LLC Employees
GS
Gary Smalling
Partner/Member
GS
Greg Smalling
Partner/Member
GS
Gregory Smalling
Partner/Member
SG
Smalling, Gary
Partner/Member
SL
Smalling, Gary L
Governing Persons
SG
Smalling, Greg
Partner/Member
SG
Smalling, Gregory Gary
Owner