Updated: Jul 31, 2026
Location
Address
PO BOX 111616, Tacoma, WA, 98411
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Certified Backflow Testing Construction
Certified Backflow Testing Inc, Tacoma, Po Box 111616, Tacoma, WA (Owned by: Poff, Monica Jane) holds a Construction Contractor, General license and 6 other licenses according to the Tukwila license board.
Their BuildZoom score of 94 ranks in the top 24% of 128,670 Washington licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Certified Backflow Testing Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
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Certified Backflow Testing Inc Contact Information
Phone Number: (877) 380-7904
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Address: PO BOX 111616, Tacoma, WA 98411
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Certified Backflow Testing Inc License info
Verified License
| License # | CERTIBT788R2 |
| 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 Certified Backflow Testing Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CERTIBT788R2 |
| Status | Active |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Certified Backflow Testing Inc 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 # | CERTIBT781PC |
| Status | Inactive |
| City | Tukwila |
| Type | Plumbing Contractor, Backflow Specialty |
| Class | Corporation |
| Business Type | Corporation |
- 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 Certified Backflow Testing Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CERTIBT905DU |
| Status | Inactive |
| City | Tukwila |
| Type | Construction Contractor, Plumbing |
| Class | Corporation |
| Business Type | Corporation |
- 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 Certified Backflow Testing Inc at the The City of Tukwila, WA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CERTIBT781PC |
| Status | Inactive |
| State | Washington |
| Type | Plumbing Contractor, Plumbing Contractor |
| Business Type | Corporation |
- 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 Certified Backflow Testing Inc 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 # | CERTIBT905DU |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- 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 Certified Backflow Testing Inc 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 # | CERTIBT973DS |
| Status | Inactive |
| State | Washington |
| Type | Construction Contractor, Construction Contractor |
| Business Type | Corporation |
- 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 Certified Backflow Testing Inc at the Washington State Department of Labor & Industries.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Insured
| Insurer | Ohio Security Ins Co |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Lexon Ins Co |
| Bond Value | $6,000 |
Certified Backflow Testing Inc Employees
AH
Amy Hanson
Vice President
AH
Any Hanson
Member
HR
Hanson, Loren Ross
Owner
LH
Loren Hanson
Member
MP
Monica Poff
Member
PJ
Poff, Monica Jane
Owner
SP
Stephen Poff
Member