Updated: Apr 20, 2026
Location and Projects
Address
Columbia, MD, 21044
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Michael Phillip Ehrhardt Plumber
Michael Phillip Ehrhardt, Columbia, MD holds a Plumbers license and 2 other licenses according to the Maryland license board.
Their BuildZoom score of 113 ranks in the top 3% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Michael Phillip Ehrhardt, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Michael Phillip Ehrhardt Contact Information
Phone Number: (410) 997-8414
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Building Permits by Michael Phillip Ehrhardt
This is a sample of this contractor's permits. Click here to access their complete permit history.
Customer has 2 water heaters the electric unit is existing and customer said was installed 5 years ago. today we repalced the unit that was beside that backup the 75 gallon power vent natural gas unit replaced with a new and brought up to code by switching out the expansion tank but adding a pan and connections to the unit as per code
Valuation:
N/A
Permit #:
P25002485
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Remove existing 50 gallon electric and furnish and install a hybrid heat pump electric water heater 50 gallon addition louver venting to room addition expansion tank pan mixing valve & condensation line as required per installation manual and code
Valuation:
N/A
Permit #:
P25001056
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Sfth replaced existing 50-gal atmospheric wh with like model brought up to code with exp tank and pan. connected gas line and flue vent to furnace (set in place by others) installed new 1 dual check valve on sprinkler system
Valuation:
N/A
Permit #:
P25002256
Status:
complete
Fee:
$111
Permit Type:
N/A
Building Type:
N/A
Remove existing 50 gallon electric and upgrade the space and water lines to accommodate a larger hybrid heat pump electric unit 80 gallon capacity. addition expansion tank and pan as required per code. in basement of home
Valuation:
N/A
Permit #:
P25001112
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace approx. 40 ft of cellular core with schedule 40 vent pipe as per code. addition expansion tank and pan as per code. replaced existing 50 gallon power vent water heater with new unit as per code
Valuation:
N/A
Permit #:
P25001257
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace 2 electric water heaters with new and bring both up to code with expansion tank and safety drip pans with connections to nearby drain. 1 in main home and 1 in mother in law suite
Valuation:
N/A
Permit #:
P25002486
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Remove 40 gallon natural gas water heater natural draft and replace with another 40 gallon natural draft natural gas water heater addition expansion tank and drip pan as per code
Valuation:
N/A
Permit #:
P25001008
Status:
issued
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Diagnostic work to get new water heater up to code added aluminum safety drip pan expansion tank and straps as needed per code. replacement of natural gas heater with same in kind
Valuation:
N/A
Permit #:
P25000684
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace existing direct vent water heater with same in kind unit upgraded to newest model addition expansion tank mixing valve drip pan and replace piping as needed as per code
Valuation:
N/A
Permit #:
P25001410
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Remove existing 75 gallon natural gas power vent. downsize and install new water heater 50 gallons in size and bring up to code with an expansion tank and drip pan as per code
Valuation:
N/A
Permit #:
P25000373
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Remove existing standard tanked electric unit and upgrade/replace with a new hybrid heat pump ao smith unit 66 gallon with all code connections and expansion tank and pan
Valuation:
N/A
Permit #:
P25001152
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Remove existing 50 gallon natural gas power vent and replace with another 50 gallon natural gas power vent unit addition expansion tank and aluminum drip pan as per code
Valuation:
N/A
Permit #:
P25001009
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace existing natural gas water heater power vent unit with new same in kind replacement replace expansion tank and addition drip pan with connections as per code
Valuation:
N/A
Permit #:
P25000827
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Furnish and install a new 50 gal atmospheric natural vent natural gas water heater in place of existing same size bring up to code with expansion tank and pan
Valuation:
N/A
Permit #:
P25002103
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace existing natural gas atmospheric water heater with new unit and bring up to code with expansion tank and pan. replace heater only everything existing
Valuation:
N/A
Permit #:
P25001740
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace standard electric unit with a hybrid heat pump unit addition expansion tank and pan to bring up to code. addition venting to room to give more air
Valuation:
N/A
Permit #:
P25001709
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Replace existing 40 gallon natural gas atmospheric vent water heater with same kind just replace with new addition expansion tank and pan to get up to code
Valuation:
N/A
Permit #:
P25001111
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Removed 75 gallon natural gas natural draft heater and replaced with a smaller unit at 50 gallons with an aluminum drain pan and expansion tank as per code
Valuation:
N/A
Permit #:
P25001007
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
Taco bell/new restaurant- (3) flush tank toilets (2) lavy sinks (1) flush valve urinal (4) floor sinks (1) open site drain (5) floor drains (4) hand sinks (1) 1"(t) backflow to yard sprinkler (1) 1 1/4 (t) backflow preventor (2) hose-bibs gas-- (2) fryers (3) rooftop units (2) tankless water heaters (1) rethermolizer **6.18.24 amendment request to addition **outside utilities (sewer/g... see more
Valuation:
N/A
Permit #:
P24001786
Status:
complete
Fee:
$1,107
Permit Type:
N/A
Building Type:
N/A
Customer had a 75 gallon water heater and (1) storage tank. downsized to just (1) water heater with no storage tank. repipe to accommodate new water heater 75 gallon natural gas (same btu's as before). get up to code with expansion tank and pan
Valuation:
N/A
Permit #:
P24000928
Status:
complete
Fee:
$55
Permit Type:
N/A
Building Type:
N/A
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120
BZ Score
-
Avg Project
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Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
120
BZ Score
$1.5K
Avg Project
-
Projects
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Verified License
BuildZoom confirmed this contractor's license
Michael Phillip Ehrhardt License info
Verified License
| License # | 20060 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Michael Phillip Ehrhardt 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 # | 20060 |
| Status | Active |
| State | Maryland |
- When BuildZoom last verified this license, it had an expiration date of December, 2022. Check the current license status of Michael Phillip Ehrhardt with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| City | Annapolis |
| Type | Plumbing Cont |
- 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 Michael Phillip Ehrhardt at the The City of Annapolis, MD.
This is a sample of licensing data; click here to access a complete history.
113
BuildZoom Score
Insured
| Insurer | Atlantic States |
1K
Permits
- Building permit records show that Michael Phillip Ehrhardt has worked on 1030 permitted projects.
Michael Phillip Ehrhardt Employees
ME
Michael Phillip Ehrhardt
Owner