Updated: May 15, 2026
Location and Projects
Address
3236 1/2 MOUNTAIN ROAD, Pasadena, MD, 21122
Use our bidding system to
request a quote
20000 Leaks Under the Basement Construction
Serving homeowners throughout Pasadena, MD and the surrounding area, 20000 Leaks Under the Basement specializes in waterproofing solutions focused on basement and foundation protection. With 22 years in business, the company offers services such as basement waterproofing, French drain installation, sump pump systems, and crawl space encapsulation. Their project portfolio includes waterproofing for single-family homes, addressing issues like basement moisture, water intrusion, and mold prevention. 20000 Leaks Under the Basement uses proven waterproofing methods tailored for the local climate and soil conditions, including interior and exterior drainage systems and vapor barriers to address both structural and moisture concerns. The company works directly with property owners to diagnose persistent water problems and provide long-term remediation. Their experience extends to repairs for leaking cracks, bowing walls, and musty odors common in below-grade spaces in Maryland homes.
20000 Leaks Under the Basement Services
Start a project today:
20000 Leaks Under the Basement Contact Information
Phone Number: (443) 261-0555
Edit
Address: 3236 1/2 MOUNTAIN ROAD, Pasadena, MD 21122
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
20000 Leaks Under the Basement Pasadena
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
20000 Leaks Under the Basement has a BuildZoom score of 99, which places them above 85% of 58,058 contractors in Maryland.
Activity
|
2 projects
|
2025 |
|
1 project
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that 20000 Leaks Under the Basement has worked on at least
6.0 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.
Pricing
|
3 projects
|
$5k-$20k |
|
1 project
|
$100k-$250k |
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 20000 Leaks Under the Basement
This is a sample of this contractor's permits. Click here to access their complete permit history.
Demo/rebuild construction with existing foundation and first floor block walls to remain
Valuation:
$150,000
Permit #:
B02428990
Status:
filed
Fee:
$1,161
Permit Type:
N/A
Building Type:
N/A
Residential interior alteration single family dwelling permit
2023-06-26
Single family dwelling install egress window in existing room in finished basement. **smoke detectors required per code if used as a bed room**
Valuation:
N/A
Permit #:
B23002161
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Residential single family dwelling (new addition alteration demolition accessory dwelling unit) perm
2021-10-11
Install 110 lf sub-grade waterproofing drain tile on 3 walls w/submersible pump
Valuation:
$7,900
Permit #:
B02401097
Status:
filed
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Residential single family dwelling (new addition alteration demolition accessory dwelling unit) perm
2021-05-28
114 int sub grade waterproofingh drain tile system incl sump pump & basin
Valuation:
$7,200
Permit #:
B02395925
Status:
filed
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Install basement water management system
Valuation:
$13,995
Permit #:
B02426843
Status:
complete
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
Accessory- egress window
Valuation:
N/A
Permit #:
BLD21-0680
Status:
final
Fee:
$400
Permit Type:
Residential
Building Type:
N/A
Alteration- install interior sub-grade drain tile
Valuation:
N/A
Permit #:
BLD21-0628
Status:
issued
Fee:
$390
Permit Type:
Residential
Building Type:
N/A
Residential single family dwelling (new addition alteration demolition accessory dwelling unit) perm
2020-02-27
Replace 140 of existing drain tile; replace exist ing pit/pump
Valuation:
$6,600
Permit #:
B02380748
Status:
complete
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Residential single family dwelling (new addition alteration demolition accessory dwelling unit) perm
2023-04-13
Install basement egress window well
Valuation:
$8,000
Permit #:
B02416089
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Alteration- egress window
Valuation:
N/A
Permit #:
BLD21-0345
Status:
final
Fee:
$250
Permit Type:
Residential
Building Type:
N/A
Alteration - basement waterproofing & new entrance
Valuation:
N/A
Permit #:
BLD22-0733
Status:
final
Fee:
$431
Permit Type:
Residential
Building Type:
N/A
Install waterproofing
Valuation:
$10,000
Permit #:
B02415997
Status:
filed
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Replace 112 existing drain tile, replace existing pit and pump
Valuation:
$2,500
Permit #:
B02364875
Status:
issued
Fee:
$75
Permit Type:
Alteration
Building Type:
Single family dwe...
Alterations- drain tile waterproofing
Valuation:
N/A
Permit #:
BLD21-0349
Status:
final
Fee:
$250
Permit Type:
Residential
Building Type:
N/A
Residential single family dwelling (new addition alteration demolition accessory dwelling unit) perm
2022-02-14
112lf subgrade interior waterprofing system w/polywall moisture membrane * install submersible pump & polyethxlene sump basin
Valuation:
$10,000
Permit #:
B02404611
Status:
filed
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Residential single family dwelling (new addition alteration demolition accessory dwelling unit) perm
2021-06-10
105lf interior sub-grade waterproofing drain tile system incl submersible pump and basin
Valuation:
$8,400
Permit #:
B02396490
Status:
complete
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Block in basement french doors w/cmv cnstction(80"x65 )flooding issue from low lying retention pond-inst all;new egress wndw in basement and window well
Valuation:
$3,500
Permit #:
B02309004
Status:
Active
Fee:
$85
Permit Type:
Alteration
Building Type:
Single family dwe...
Residential single family dwelling (new addition alteration demolition accessory dwelling unit) perm
2014-09-11
Block in basement french doors w/cmv cnstction(80"x65 )flooding issue from low lying retention pond-inst all;new egress wndw in basement and window well
Valuation:
$3,500
Permit #:
B02309004
Status:
complete
Fee:
$85
Permit Type:
N/A
Building Type:
N/A
Residential accessory structure (detached garage/carport shed pool gazebo)
2015-11-10
Construct attached 24'x28'x7'10"h garage
Valuation:
$10,000
Permit #:
B02324861
Status:
complete
Fee:
$220
Permit Type:
N/A
Building Type:
N/A
Construct attached 24'x28'x7'10"h garage
Valuation:
$32,901
Permit #:
B02324861
Status:
complete
Fee:
$220
Permit Type:
Addition
Building Type:
Residential garage
Similar Contractors See more
139
BZ Score
$25K
Avg Project
-
Projects
142
BZ Score
-
Avg Project
-
Projects
138
BZ Score
$15K
Avg Project
-
Projects
20000 Leaks Under the Basement Reviews
BuildZoom hasn't received any reviews for 20000 Leaks Under the Basement. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
20000 Leaks Under the Basement License info
Verified License
| License # | 81757 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for 20000 Leaks Under the Basement 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 # | CON-4577 |
| Status | Inactive |
| City | Annapolis |
| Type | Contractor |
- 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 20000 Leaks Under the Basement at the The City of Annapolis, MD.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
25
Permits
- Building permit records show that 20000 Leaks Under the Basement has worked on 25 permitted projects.
20000 Leaks Under the Basement Employees
DJ
Donald Cannata Jr
Owner