Updated: Apr 18, 2026
Location and Projects
Address
PO BOX 52921, Bellevue, WA, 98015
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Mawer Brothers Construction
Mawer Brothers LLC, Bellevue, Po Box 52921, Bellevue, WA (Employees: James Burke, Mason Mawer, and Mawer, Mason Lancaster) holds a Construction Contractor, General license and 1 other license 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 Mawer Brothers LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Mawer Brothers LLC Services
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Mawer Brothers LLC Contact Information
Phone Number: (425) 417-7819
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Address: PO BOX 52921, Bellevue, WA 98015
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Mawer Brothers LLC Bellevue
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Mawer Brothers LLC has a BuildZoom score of 111, which places them above 96% of 128,670 contractors in Washington.
Activity
|
7 projects
|
2025 |
|
8 projects
|
2024 |
|
9 projects
|
2023 |
Our building permit records indicate that Mawer Brothers LLC has worked on at least
24.0 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
|
9 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Mawer Brothers LLC mostly works on
home addition
projects.
Pricing
|
1 project
|
$250k-$500k |
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.
Remove replace existing rear deck and patio with newly designed deck and patio. addition new plantings rock outcroppings and minor rockery to existing planted areas. re-sod lawn area 24-103787 tg
Valuation:
N/A
Permit #:
24 105054 GA
Status:
final
Fee:
$1,095
Permit Type:
N/A
Building Type:
N/A
A single family residential alteration to existing structure none project involving (1 dryer exhaust duct 3 bathroom fan 1 laundry fan 1 appliance vent only 1 duct work only) 21 129384br
Valuation:
N/A
Permit #:
22 114160 BK
Status:
final
Fee:
$227
Permit Type:
N/A
Building Type:
N/A
Cannon-deck repair (swo)
Valuation:
N/A
Permit #:
BLD2023-1333
Status:
issued
Fee:
$453
Permit Type:
N/A
Building Type:
N/A
Interior remodel and main level covered deck addition includes clear & grade insp for drains. does not include mechanical electrical or plumbing
Valuation:
N/A
Permit #:
21 129384 BR
Status:
final
Fee:
$9,223
Permit Type:
N/A
Building Type:
N/A
Rev1-remodel primary great room & 2nd bathroom. addition 48 sf
Valuation:
N/A
Permit #:
2504-011
Status:
issued
Fee:
$7,874
Permit Type:
N/A
Building Type:
N/A
Demo/rebuild 3751 sf single family residence attached 857 sf garage
Valuation:
N/A
Permit #:
2502-129
Status:
issued
Fee:
$26,716
Permit Type:
N/A
Building Type:
N/A
Cannon-interior remodel plumbing not incl. (inv), non-structural interior renovation (resulting in no additional square footage)
Valuation:
N/A
Permit #:
BLD2023-0158
Status:
final
Fee:
$4,302
Permit Type:
N/A
Building Type:
N/A
Install sewer water and/or storm -no lane closure
Valuation:
N/A
Permit #:
2509-181
Status:
issued
Fee:
$752
Permit Type:
N/A
Building Type:
N/A
Tear down existing house building new construction single family residence with attached adu
Valuation:
N/A
Permit #:
25 116878 BS
Status:
plancheck
Fee:
$15,949
Permit Type:
N/A
Building Type:
N/A
Demolish single family residence to rebuild
Valuation:
N/A
Permit #:
2509-182
Status:
issued
Fee:
$420
Permit Type:
N/A
Building Type:
N/A
Interior renovation of an existing daylight rambler home. some alteration to exterior wall window and door location and sizes. all interior remodel work is non-structural. there will be no change in existing footprint roof configuration patio/deck locations or impervious surfaces. **add on plumbing mechanical or electrical
Valuation:
N/A
Permit #:
19 107607 BU
Status:
final
Fee:
$11,189
Permit Type:
N/A
Building Type:
N/A
Connecting new addition to existing side sewer. connection will take place within property lines/setbacks. no work will be performed outside of the property for this connection 19 124443 br
Valuation:
N/A
Permit #:
20 110698 UA
Status:
final
Fee:
$660
Permit Type:
N/A
Building Type:
N/A
Addition to rear of home for elevator
Valuation:
N/A
Permit #:
2503-028
Status:
issued
Fee:
$3,952
Permit Type:
N/A
Building Type:
N/A
A single family residential repair or replacement none project involving (1 air conditioner) 22 102003 bu
Valuation:
N/A
Permit #:
22 104668 BK
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
N/A
Addition of a 500 sf +/- exterior covered deck space in rear yard in place of an existing uncovered deck in roughly the same location. also a new nanawall door system to access deck in place of existing sliding glass door. does not include clear and grade plumbing mechanical or elect
Valuation:
N/A
Permit #:
19 112595 BR
Status:
final
Fee:
$2,750
Permit Type:
N/A
Building Type:
N/A
Demolish existing detached garage-build open carport
Valuation:
N/A
Permit #:
2204-083
Status:
issued
Fee:
$4,121
Permit Type:
N/A
Building Type:
N/A
Repair fire damage. does not include mechanical electrical or plumbing
Valuation:
N/A
Permit #:
22 102003 BU
Status:
final
Fee:
$5,555
Permit Type:
N/A
Building Type:
N/A
Remove and replace driveway. no change to layout. no sidewalk impact. ** approved for parking in the row only. construction to take place within private property
Valuation:
N/A
Permit #:
24 103787 TG
Status:
final
Fee:
$788
Permit Type:
N/A
Building Type:
N/A
Demolish existing single family residence & building 3336 sq ft single family residence w 649 sq ft garag
Valuation:
N/A
Permit #:
2006-188
Status:
final
Fee:
$12,044
Permit Type:
N/A
Building Type:
N/A
Remove 4 trees rpl with 8 trees
Valuation:
N/A
Permit #:
2210-228
Status:
canceled
Fee:
$462
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
173
BZ Score
-
Avg Project
-
Projects
165
BZ Score
-
Avg Project
-
Projects
164
BZ Score
$32.4K
Avg Project
-
Projects
Mawer Brothers LLC Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Mawer Brothers LLC License info
Verified License
| License # | MAWERBL980RP |
| 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 Mawer Brothers LLC at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MAWERBL980RP |
| 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 Mawer Brothers LLC at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
111
BuildZoom Score
Insured
| Insurer | United Specialty Insurance Com |
| Insured up to | $2,000,000 |
Bonded
| Bonded Agent | Wesco Insurance Co |
| Bond Value | $12,000 |
54
Permits
- Building permit records show that Mawer Brothers LLC has worked on 54 permitted projects.
Mawer Brothers LLC Employees
JB
James Burke
Partner/Member
MM
Mason Mawer
Partner/Member
ML
Mawer, Mason Lancaster
Partner/Member