Updated: Apr 26, 2026
Location and Projects
Address
30 Pelczar Ave, Laurel, MD, 20709
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Sean Underwood Plumber
Sean Underwood, 30 Pelczar Ave, Laurel, MD (Employees: Michael Alan Underwood and Sean John) holds a Plumbers license and 8 other licenses according to the Maryland license board.
Their BuildZoom score of 102 ranks in the top 11% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Sean Underwood, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Sean Underwood Services
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Sean Underwood Contact Information
Phone Number: (443) 414-9582
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Address: 30 Pelczar Ave, Laurel, MD 20709
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Sean Underwood Laurel
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sean Underwood has a BuildZoom score of 102, which places them above 89% of 58,058 contractors in Maryland.
Activity
|
8 projects
|
2025 |
|
8 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Sean Underwood has worked on at least
20.0 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
|
14 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Sean Underwood mostly works on
plumbing project
projects.
Pricing
|
2 projects
|
< $5k |
|
1 project
|
$5k-$20k |
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.
Run gas lines from propane tank. (1) gas line to the right side of the house for the fireplace - (1) gas line to the rear of the house for the water heater - (1) 1” poly gas line back between the garage and shed and t off to provide heat for both buildings
Valuation:
N/A
Permit #:
PG00033591
Status:
expired
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Install 1000 gal underground propane tank with (1) gas line to the right side of the house for the fireplace; (1) gas line to the rear of the house for the water heater; (1) 1” poly gas line back between the garage and shed and t off to provide heat for both buildings
Valuation:
N/A
Permit #:
PG00033361
Status:
expired
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Relocate kitchen sink and dishwasher. relocate (1) existing shower faucet. replace (2) shower pans. all other fixtures in unit are not part of this project
Valuation:
$3,000
Permit #:
PLUMR-2024-00348
Status:
issued
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Run gas line from tanks to pool heater w/regulators
Valuation:
N/A
Permit #:
PG00039101
Status:
complete
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Ste 4/rosie’s delicatessen/install (2) 120 gal above ground dot propane tanks w/1/2 line to (2) commercial kitchen appliances (stub up only interior lines by others)
Valuation:
N/A
Permit #:
P23003584
Status:
complete
Fee:
$161
Permit Type:
N/A
Building Type:
N/A
Verano set customer supplied package units install ductwork and assist with factory startup
Valuation:
N/A
Permit #:
M25001357
Status:
issued
Fee:
$351
Permit Type:
N/A
Building Type:
N/A
Sfd//run 1/2 lines from ex tank to (1) pool heater 400 000 btu & (1) grill 50 000 btu
Valuation:
N/A
Permit #:
P22004593
Status:
issued
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
Residential plumbing addition alteration permit
2022-05-10
Single family dwelling install 100 gal dot tank w 1/2 line to house stub 80 000 btu
Valuation:
N/A
Permit #:
P22001938
Status:
complete
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Single family dwelling relocate (1) existing 1 000 gallon underground propane tank
Valuation:
N/A
Permit #:
B22001273
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Run line from ex propane tank to grill & fire pit
Valuation:
N/A
Permit #:
PG00016411
Status:
expired
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install (1) 1 000 gallon underground propane tank
Valuation:
N/A
Permit #:
B22002043
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Install (1) 500 gal underground propane tank with line to house stub
Valuation:
N/A
Permit #:
PG00033371
Status:
expired
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install (1) 1000 gal underground propane tank
Valuation:
N/A
Permit #:
B22002303
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install (1) 1000 gal underground propane tank
Valuation:
N/A
Permit #:
B22002040
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install (1) 1000 gal underground propane tank
Valuation:
N/A
Permit #:
B22002039
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install (1) 1 000 gal underground propane tank
Valuation:
N/A
Permit #:
B22002038
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Single family dwelling install (1) 500 gal underground propane tank
Valuation:
N/A
Permit #:
B22004486
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Residential plumbing addition alteration permit
2022-05-16
Sfd: install gas line to gas fixture: 1- generator (325 000 btu's)
Valuation:
N/A
Permit #:
P22002019
Status:
complete
Fee:
$128
Permit Type:
N/A
Building Type:
N/A
Single family dwelling run 1/2 line from dot cylinder to stub out
Valuation:
N/A
Permit #:
P22001118
Status:
complete
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
Install (2) 420lb above ground propane tanks
Valuation:
N/A
Permit #:
PG00039081
Status:
filed
Fee:
$88
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
120
BZ Score
-
Avg Project
-
Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
Sean Underwood Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Sean Underwood License info
Verified License
| License # | 79745 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Sean Underwood at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 89650 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Sean Underwood at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 79745 |
| Status | Active |
| State | Maryland |
- When BuildZoom last verified this license, it had an expiration date of November, 2023. Check the current license status of Sean Underwood with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 92503 |
| Status | Active |
| State | Maryland |
- When BuildZoom last verified this license, it had an expiration date of February, 2016. Check the current license status of Sean Underwood with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 60029 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- When BuildZoom last verified this license, it had an expiration date of April, 2019. Check the current license status of Sean Underwood with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 66894 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- When BuildZoom last verified this license, it had an expiration date of December, 2017. Check the current license status of Sean Underwood with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CON-4799 |
| Status | Inactive |
| City | Annapolis |
| Type | Gas Fitter |
- According to the The City of Annapolis, MD, 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 Sean Underwood at the The City of Annapolis, MD.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 60029 |
| Status | Inactive |
| State | Maryland |
| Type | Plumbers |
- According to the Maryland Department of Labor, Licensing & Regulation, 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 Sean Underwood at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 66894 |
| Status | Inactive |
| State | Maryland |
| Type | Plumbers |
- According to the Maryland Department of Labor, Licensing & Regulation, 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 Sean Underwood at the Maryland Department of Labor, Licensing & Regulation.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
247
Permits
- Building permit records show that Sean Underwood has worked on 247 permitted projects.
Sean Underwood Employees
MU
Michael Alan Underwood
Owner
SJ
Sean John
Owner
SU
Sean Underwood
Owner