Updated: Jun 02, 2026
Location and Projects
Address
PO Box 3004, Boulder, CO, 80307
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Matthew Sean Mayfield Plumber
Matthew Sean Mayfield, Boulder, Po Box 3004, Boulder, CO (Employees: Matthew Mayfield and Mayfield Plumbing & Backflow) holds a Plumbing Contractor license and 13 other licenses according to the Colorado license board.
Their BuildZoom score of 99 ranks in the top 15% of 55,949 Colorado licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Matthew Sean Mayfield, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Matthew Sean Mayfield Services
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Matthew Sean Mayfield Contact Information
Phone Number: (720) 505-0731
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Address: PO Box 3004, Boulder, CO 80307
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Matthew Sean Mayfield Boulder
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Matthew Sean Mayfield has a BuildZoom score of 99, which places them above 85% of 55,949 contractors in Colorado.
Activity
|
3 projects
|
2025 |
|
2 projects
|
2023 |
Our building permit records indicate that Matthew Sean Mayfield has worked on at least
5.0 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
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Matthew Sean Mayfield mostly works on
plumbing project
projects.
Pricing
|
1 project
|
$500k-$1mil |
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 Matthew Sean Mayfield
This is a sample of this contractor's permits. Click here to access their complete permit history.
New duplex
Valuation:
$560,000
Permit #:
2025-ZONE-0002094
Status:
filed
Fee:
$495
Permit Type:
N/A
Building Type:
N/A
Interior remodel - kitchen and laundry room remodel including relocating gas water heater - removing walls kitchen/living room. replace shower fixture and addition lights & fan
Valuation:
$65,000
Permit #:
B201902395
Status:
complete
Fee:
$2,759
Permit Type:
N/A
Building Type:
N/A
Demolish
Valuation:
N/A
Permit #:
2025-DEMO-0000320
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New duplex
Valuation:
N/A
Permit #:
2025-SUDP-0001907
Status:
issued
Fee:
$7,045
Permit Type:
New
Building Type:
N/A
Void-180 days no activity replace leaking cleanout pvc fitting in wall 2 inch
Valuation:
N/A
Permit #:
PLB2023-00064
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
192 sf remodel of kitchen install tankless water heater in crawl space-new gas line for range replace cabinet and counters and hood. remove portions of wall that separates the lr from kitchen relocate electrical and lighting to support kitchen
Valuation:
$40,000
Permit #:
RES-0248-2017
Status:
final
Fee:
$1,854
Permit Type:
N/A
Building Type:
N/A
Remodel of existing basement bathroom. no mechanical work. no electrical work beyond replacing fixtures. plumbing to be done by licensed contractor
Valuation:
$3,000
Permit #:
RES-0757-2020
Status:
final
Fee:
$231
Permit Type:
N/A
Building Type:
N/A
Remodel and addition to a single family residence. scope includes kitchen and living room remodel vaulting existing ceilings bathroom remodel with 10 sf rear addition and front porch alterations
Valuation:
N/A
Permit #:
PLB2018-00039
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace water heater and bring up to code
Valuation:
N/A
Permit #:
MEC2022-02114
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of a replacement instantaneous gas fired, 9.8 gallon water heater with 0.92 uef. install thermal expansion device, service outlet and carbon monoxide detector(s) per code.
Valuation:
N/A
Permit #:
PMT2018-00598
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Single Family Det...
Installation of a replacement instantaneous gas fired 9.8 gallon water heater with 0.92 uef. install thermal expansion device service outlet and carbon monoxide detector(s) per code
Valuation:
N/A
Permit #:
PMT2018-00598-MEC
Status:
complete
Fee:
$249
Permit Type:
N/A
Building Type:
N/A
Kitchen/living room renovation with vaulted ceilings. installing a sub panel
Valuation:
$20,000
Permit #:
RES-0566-2019
Status:
final
Fee:
$1,074
Permit Type:
N/A
Building Type:
N/A
Basement finish - 1344 sq ft
Valuation:
$32,000
Permit #:
RES20-00824
Status:
final
Fee:
$1,339
Permit Type:
Basement finish
Building Type:
N/A
Replace leaking 2 inch pvc drain fitting in wall
Valuation:
N/A
Permit #:
PLB2023-00073
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tankless water heater install
Valuation:
$5,000
Permit #:
RES21-01959
Status:
final
Fee:
$334
Permit Type:
N/A
Building Type:
N/A
Remodel in kitchen remodel. no structural changes
Valuation:
$31,000
Permit #:
RES-0442-2018
Status:
final
Fee:
$1,497
Permit Type:
N/A
Building Type:
N/A
Install tankless water heater
Valuation:
$4,500
Permit #:
BP-20-1272
Status:
complete
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
MEC2020-01381
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Water heater replacement
Valuation:
$1,500
Permit #:
B201904812
Status:
complete
Fee:
$74
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
MEC2020-00126
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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Avg Project
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BZ Score
$293K
Avg Project
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Avg Project
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Verified License
BuildZoom confirmed this contractor's license
Matthew Sean Mayfield License info
License Not Verified
| License # | 3551 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2021. Check the current license status of Matthew Sean Mayfield with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 189679 |
| Status | Active |
| State | Colorado |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2021. Check the current license status of Matthew Sean Mayfield with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 189679 |
| Status | Active |
| State | Colorado |
| Type | Plumber |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Matthew Sean Mayfield at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 3551 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Matthew Sean Mayfield at the Colorado Division of Professions and Occupations.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | LIC-0011204-PLBG |
| Status | Active |
| City | Boulder |
| Type | Plumbing |
| Class | Plumbing |
| Date Issued | 01-24-2026 |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Matthew Sean Mayfield at the Boulder Licensing Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | LIC-0011204 |
| Status | Active |
| City | Boulder |
| Type | Plumbing |
- When BuildZoom last verified this license, it had an expiration date of December, 2018. Check the current license status of Matthew Sean Mayfield with the Boulder Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | PC.0003551 |
| Status | Active |
| State | Colorado |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Matthew Sean Mayfield with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MP.00189679 |
| Status | Active |
| State | Colorado |
| Type | Master Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2019. Check the current license status of Matthew Sean Mayfield with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MP-189679 |
| Status | Active |
| State | Colorado |
| Type | Master Plumber |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of Matthew Sean Mayfield with the Colorado Division of Professions and Occupations
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | AEC8731 |
| Status | Inactive |
| City | Arvada |
| Type | Contractor |
- According to the The City of Arvada, Colorado, 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 Matthew Sean Mayfield at the The City of Arvada, Colorado.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | Plbg A |
- According to the City and County of Denver Community Planning and Development, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | P180250 |
| Status | Inactive |
| County | Douglas County |
| Type | Plumbing |
- According to the Douglas County Building Division, 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 Matthew Sean Mayfield at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Denver |
| Type | Plbg A |
- According to the City and County of Denver Community Planning and Development, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 160631007 |
| Status | Inactive |
| City | Westminster |
| Type | Plumbing Contractor |
- According to the City of Westminster, Colorado, 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 Matthew Sean Mayfield at the City of Westminster, Colorado.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
30
Permits
- Building permit records show that Matthew Sean Mayfield has worked on 30 permitted projects.
Matthew Sean Mayfield Employees
MM
Matthew Mayfield
MM
Matthew Sean Mayfield
Owner
MB
Mayfield Plumbing & Backflow
SM
Sean Mayfield
Responsible Person
He is the best plumber I have ever experienced.