Updated: Apr 07, 2026
Location and Projects
Address
8801 MYLANDER LAND, Towson, MD, 21286
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Calvert Plumbing & Heating, Inc
Calvert Plumbing & Heating, Inc, 8801 Mylander Ln, Towson, MD (Owned by: John Carter Smyth) holds a Home Improvement license and 2 other licenses according to the Maryland license board.
Their BuildZoom score of 98 ranks in the top 16% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Calvert Plumbing & Heating, Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Calvert Plumbing & Heating, Inc Services
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Calvert Plumbing & Heating, Inc Contact Information
Phone Number: (410) 323-5400
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Address: 8801 MYLANDER LAND, Towson, MD 21286
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Calvert Plumbing & Heating, Inc Towson
Quality
98
84th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Calvert Plumbing & Heating, Inc has a BuildZoom score of 98, which places them above 84% of 58,058 contractors in Maryland.
Activity
|
24 projects
|
2025 |
|
3 projects
|
2024 |
|
10 projects
|
2023 |
Our building permit records indicate that Calvert Plumbing & Heating, Inc has worked on at least
37.0 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
|
Commercial Renovations |
|
3 projects
|
Home Additions |
|
4 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Calvert Plumbing & Heating, Inc mostly works on
hvac project
and home addition
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
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 Calvert Plumbing & Heating, Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Installation of new hvac. (2) units ductwork and exhaust fans approved for work only. subject to the permitted uses and regulations under the provisions of the zoning ordinance
Valuation:
N/A
Permit #:
BCCM-25-000498
Status:
rejected
Fee:
N/A
Permit Type:
Interior trades only
Building Type:
N/A
Job description: addition bathroom and personal bar sink to 2nd level of detached garage. groundwork: extend pre-exsiting sewer from garage to exsiting houses sewer rough-in: install necessary water and sewer piping to future water closet lavotroy shower and bar sink install water heater trim: complete trim out of bathroom and bar sink
Valuation:
N/A
Permit #:
P02315372
Status:
complete
Fee:
$75
Permit Type:
N/A
Building Type:
Accessory structure
Unit 21 - perform gas test on existing gas piping to confirm no leaks. repair leaks found as needed. all work on 1st floor of a single-story building. all units are located in the ceiling of the warehouse. bge work order #19251712
Valuation:
N/A
Permit #:
P24000866
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Receive final inspection of gas piping repair. furnace and stove pressure test was inspected and passed under permit com2024-53578
Valuation:
N/A
Permit #:
BRCM-25-002103
Status:
complete
Fee:
$78
Permit Type:
Interior trades only
Building Type:
N/A
Install underground and above ground plumbing for bathroom. install condensate drains for hvac units
Valuation:
N/A
Permit #:
BCCM-25-000496
Status:
rejected
Fee:
N/A
Permit Type:
Interior alterati...
Building Type:
N/A
Commercial plumbing addition alteration permit
2022-08-22
Suite 100 kennedy kreiger institute install plumbing fixtures: (first fl): 6- lavs 5- water closets 4- kitchen sinks 1- washing machine conn 1- dishwasher 1- ice maker 1- sill cock 1- floor drain 1- electrical water heater
Valuation:
N/A
Permit #:
P22003439
Status:
complete
Fee:
$265
Permit Type:
N/A
Building Type:
N/A
Perform plumbing per approved building permit. addition licensed plumbing contractor license # 6863 to permit bccm-25-001062
Valuation:
N/A
Permit #:
BCCM-25-002198
Status:
closed - void
Fee:
N/A
Permit Type:
Interior trades only
Building Type:
N/A
Replace existing sanitary waste and vent piping above and below grade
Valuation:
N/A
Permit #:
BCCM-25-001311
Status:
complete
Fee:
$4,303
Permit Type:
Interior trades only
Building Type:
N/A
Install low voltage controls for hvac 9 -- thermostats 20 -- co2 sensors
Valuation:
N/A
Permit #:
E02411471
Status:
filed
Fee:
$112
Permit Type:
N/A
Building Type:
N/A
Single family dwelling replace and install piping for gas and plumbing fixtures that were damaged in fire: 1 - lav 1- water closet gas: 1 - furnace *standard low pressure*
Valuation:
N/A
Permit #:
P22000873
Status:
complete
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
Replace water service from house to meter
Valuation:
N/A
Permit #:
BRCM-25-004485
Status:
complete
Fee:
$52
Permit Type:
Interior trades only
Building Type:
N/A
Disconnect all gas appliances perform gas pressure test and repair leaks as found for renewal of gas service with bge
Valuation:
N/A
Permit #:
P24000131
Status:
canceled
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace 10-foot section of sanitary sewer line in rear of home (no row work)
Valuation:
N/A
Permit #:
BRCM-25-015217
Status:
complete
Fee:
$52
Permit Type:
Exterior trades a...
Building Type:
N/A
Suite 400 existing equipment to remain. test existing natural gas piping bge to replace gas meter wo#19161256
Valuation:
N/A
Permit #:
P23005296
Status:
expired
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Suite 300a existing equipment to remain. test existing natural gas piping bge to replace gas meter wo#19161256
Valuation:
N/A
Permit #:
P23005295
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Wade architecture install 1-single bowl kitchen sink & faucet
Valuation:
N/A
Permit #:
P23002286
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Suite 200/vacant rough in for future single bowl sink
Valuation:
N/A
Permit #:
P23001333
Status:
complete
Fee:
$105
Permit Type:
N/A
Building Type:
N/A
Replace for an existing tenant replace existing packaged booster pumps
Valuation:
N/A
Permit #:
E02377299
Status:
filed
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Building 10-a jhu-apl install plumbing & gas fixtures 1-sink/1-sewer ejector/1-elec water heaters/1-roof top unit
Valuation:
N/A
Permit #:
P20001272
Status:
complete
Fee:
$221
Permit Type:
N/A
Building Type:
N/A
Riderwood village neighborhood 3 phase 3 - 3138 gracefield rd
Valuation:
N/A
Permit #:
PFG-1241638-2018
Status:
final
Fee:
$70,427
Permit Type:
N/A
Building Type:
N/A
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Calvert Plumbing & Heating, Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Calvert Plumbing & Heating, Inc License info
Verified License
| License # | 11608 |
| Status | Active |
| State | Maryland |
| Type | Home Improvement |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Calvert Plumbing & Heating, Inc 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 # | 6863 |
| Status | Active |
| State | Maryland |
| Type | Plumbing Contractors |
- BuildZoom has not verified this license since January, 2010.
Verify this license's status for Calvert Plumbing & Heating, 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 # | 11608 |
| Status | Active |
| State | Pennsylvania |
| Type | Contractor |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of Calvert Plumbing & Heating, Inc with the Pennsylvania Office of the Attorney General
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
251
Permits
- Building permit records show that Calvert Plumbing & Heating, Inc has worked on 251 permitted projects.
Calvert Plumbing & Heating, Inc Employees
JS
John Carter Smyth
Owner