Updated: May 06, 2026
Location
Address
4701 Sangamore Rd, Bethesda, MD, 20816
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Peterson & Collins Construction
Peterson & Collins Inc, 4701 Sangamore Rd, Bethesda, MD (Owned by: Edward Charles Peterson) holds a Home Improvement license and 10 other licenses according to the Maryland license board.
Their BuildZoom score of 94 ranks in the top 24% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Peterson & Collins Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Peterson & Collins Inc Services
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Custom Home Build
New Home Construction
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Drafting
ADU
Small Multi-Family New Cons...
Small Multi-Family Remodel ...
Whole Home Remodel
Modular Home Construction
Pool House
Sunrooms and Greenhouses
Other Secondary Structure N...
Addition
Vertical Addition
Horizontal Addition
Vertical and Horizontal Add...
Attic Remodel
Single Room Remodel
Cosmetic Remodel
Building Design
Addition Design
ADU Design
Basement Design
Bathroom Design
Custom Home Design
Healthcare Facility Design
Hotel Design
Industrial Building Design
Kitchen Design
Modular Home Design
Peterson & Collins Inc Contact Information
Phone Number: (202) 437-0361
Address: 4701 Sangamore Rd, Bethesda, MD 20816
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Verified License
BuildZoom confirmed this contractor's license
Peterson & Collins Inc License info
Verified License
| License # | 20522 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Peterson & Collins Inc 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 # | 420322000228 |
| Status | Active |
| City | District Of Columbia |
| Type | Home Improvement Salesman |
- When BuildZoom last verified this license, it had an expiration date of January, 2026. Check the current license status of Peterson & Collins Inc with the Department of Consumer and Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 410519000289 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Gen Contr Construction Mngr |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 40000103 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Home Improvement Contractor |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 39005814 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Home Improvement Contractor |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 40000104 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Home Improvement Salesman |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 70101806 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Gen Contr Construction Mngr |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 410518000211 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Gen Contr Construction Mngr |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 420319000167 |
| Status | Inactive |
| City | District Of Columbia |
| Type | Home Improvement Salesman |
- According to the Department of Consumer and Regulatory Affairs, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 20522 |
| 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.
Check this license's status for Peterson & Collins Inc 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 # | NAT-95824-2 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- According to the United States Environmental Protection Agency, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Peterson & Collins Inc at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Peterson & Collins Inc Employees
EP
Edward Charles Peterson
Owner
RI
Raymond Carl Slifka Ii
Owner
SW
Susan S. Wodatch
SW
Susan Wodatch