Updated: May 06, 2026
Location and Projects
Address
5275 Stowe Ln, Waldorf, MD, 20601
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Calvary Mechanical Co Inc
Calvary Mechanical Co Inc at 5275 Stowe Ln, Waldorf, MD 20601, held a HVAC/Mechanical Contractor license (#410515000287) with the District of Columbia contractors license board with an expiration date of 06-29-2021. We last verified the license was inactive on 05-05-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 58,058 Maryland contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Calvary Mechanical Co Inc Contact Information
Phone Number: (301) 274-9100
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Address: 5275 Stowe Ln, Waldorf, MD 20601
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Building Permits by Calvary Mechanical Co Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Bob's transport & storage/install water and sewer piping install plumbing fixtures: 1- bfp (watts lf009m2qtk) for domestic water * plumbing fixtures already installed by modular manufacturer
Valuation:
N/A
Permit #:
P20001474
Status:
complete
Fee:
$435
Permit Type:
N/A
Building Type:
N/A
Freedom way baptist church - 001266 benning rd
Valuation:
N/A
Permit #:
PFG-1247053-2019
Status:
issued
Fee:
N/A
Permit Type:
Additional fixtur...
Building Type:
N/A
Gas test - gas meter replaced or relocated
Valuation:
N/A
Permit #:
SFP-1249292-2019
Status:
issued
Fee:
N/A
Permit Type:
Gas
Building Type:
N/A
Board of education - 014400 berry rd
Valuation:
N/A
Permit #:
PFG-1246901-2019
Status:
final
Fee:
N/A
Permit Type:
Replacement struc...
Building Type:
N/A
Re-inspect fee re-inspect fee
Valuation:
N/A
Permit #:
SFP-1250629-2019
Status:
final
Fee:
N/A
Permit Type:
plumbing gas
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PFG-1249553-2019
Status:
final
Fee:
N/A
Permit Type:
Additional fixtur...
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
PFG-1249288-2019
Status:
final
Fee:
N/A
Permit Type:
Additional fixtur...
Building Type:
N/A
Mechanical for substantial improvement install two (2) hvac systems 2 ton in attic and 2 5 ton in basement
Valuation:
N/A
Permit #:
M02153940
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Mechanical for white box ductwork exhaust fans insulation two oahu vav boxes w/elec heater one ductless split rdg's
Valuation:
$125,000
Permit #:
M02177395
Status:
complete
Fee:
$727
Permit Type:
N/A
Building Type:
N/A
Install plumbing & gas in new single family dwelling 4-bathtubs/1-shower/7-lavs/5-water closets/1-kitchen sink/1-disposal/1-dishwasher/1-wash mach conn/1-laundry tray/1-sump pump gas - 1-water heater/2-furnaces/1-fireplace
Valuation:
N/A
Permit #:
P08000294
Status:
complete
Fee:
$243
Permit Type:
N/A
Building Type:
N/A
Family life center reconstruct plumbing for 2 restrooms install new water/fire service 2-lavs/2-water closets/1-kitchen sink/1-water heater/1-sill cocks/1-watts 4000ss
Valuation:
N/A
Permit #:
P08000293
Status:
complete
Fee:
$408
Permit Type:
N/A
Building Type:
N/A
Replace (1) beth kitechen laundry hose bibbs hot water heater * addition 1 bathroom w/extra lavatory
Valuation:
N/A
Permit #:
P02207797
Status:
complete
Fee:
$115
Permit Type:
Substantial impro...
Building Type:
Single family dwe...
Install plumbing in new single family dwelling 1-bathtub/2-showers/4-lavs/3-water closets/1-kitchen sink/1-disposal/1-dishwasher/1-wash mach conn/1-water heater/1-sump pump
Valuation:
N/A
Permit #:
P08000137
Status:
complete
Fee:
$210
Permit Type:
N/A
Building Type:
N/A
Plumbing for 1 full bathroom and one bar sink
Valuation:
N/A
Permit #:
P02253831
Status:
complete
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Consultation/courtesy inspection
Valuation:
N/A
Permit #:
SFP-1299994-2020
Status:
final
Fee:
$103
Permit Type:
N/A
Building Type:
N/A
Gas furnace/gas water heater
Valuation:
N/A
Permit #:
SFP-1239611-2018
Status:
final
Fee:
N/A
Permit Type:
plumbing gas
Building Type:
N/A
Mechanical for substantial improvement install 3 ton heat pump system downstairs and 2.5 ton heat pump system upstairs
Valuation:
N/A
Permit #:
M02160091
Status:
complete
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
[none] - 001305 ray rd
Valuation:
N/A
Permit #:
PFG-1238700-2018
Status:
final
Fee:
N/A
Permit Type:
Additional fixtur...
Building Type:
N/A
Ppis permit 1148293
Valuation:
N/A
Permit #:
PFG-1148293-2016
Status:
issued
Fee:
N/A
Permit Type:
New construction nr
Building Type:
N/A
Ppis permit 1148292
Valuation:
N/A
Permit #:
PFG-1148292-2016
Status:
issued
Fee:
N/A
Permit Type:
New construction nr
Building Type:
N/A
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Calvary Mechanical Co Inc License info
Inactive License
| License # | 410515000287 |
| 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. If this is your business, please update your license status.
Check this license's status for Calvary Mechanical Co Inc at the Department of Consumer and Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Calvary Mechanical Co Inc, click “This is My Business” to update your information.
20
Permits
- Building permit records show that Calvary Mechanical Co Inc has worked on 20 permitted projects.