Updated: Apr 21, 2026
Location and Projects
Address
4707 WARDS CHAPEL ROAD, Owings Mills, MD, 21117
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Sean B Klein Architect
Sean B Klein, 4707 Wards Chapel Rd, Owings Mills, MD (Employees: Michael B. Klein and Michael Francis Klein) holds a Plumbers license and 3 other licenses according to the Maryland license board.
Their BuildZoom score of 107 ranks in the top 6% of 58,058 Maryland licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Sean B Klein, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Sean B Klein Services
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Sean B Klein Contact Information
Address: 4707 WARDS CHAPEL ROAD, Owings Mills, MD 21117
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Sean B Klein Owings Mills
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Sean B Klein has a BuildZoom score of 107, which places them above 94% of 58,058 contractors in Maryland.
Activity
|
36 projects
|
2025 |
|
4 projects
|
2024 |
|
11 projects
|
2023 |
Our building permit records indicate that Sean B Klein has worked on at least
51.0 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
|
4 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Sean B Klein mostly works on
new construction
projects.
Pricing
|
5 projects
|
< $5k |
|
9 projects
|
$5k-$20k |
|
1 project
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $7,528. This graph shows the distribution of these job values.
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Complete installing hvac equipment. the dwelling has already had all rough in inspections and that work was done by others
Valuation:
N/A
Permit #:
BRCM-25-009212
Status:
complete
Fee:
$151
Permit Type:
Interior trades only
Building Type:
N/A
Install (1) 1.5 ton air conditioning (2) 3 ton air conditioning (1) 40k gas furnace and (2) 80k gas furnaces and duct work for new single family dwelling. gas by others
Valuation:
N/A
Permit #:
BRCM-25-012035
Status:
complete
Fee:
$293
Permit Type:
Interior trades only
Building Type:
N/A
Replacement of 60k btu gas furnace 3 ton air conditioning and reconfigure some ductwork. gas by others
Valuation:
N/A
Permit #:
BRCM-25-017330
Status:
complete
Fee:
$125
Permit Type:
Interior trades only
Building Type:
N/A
Install new gas furnace and air conditioning with duct work in renovation house. gas piping by others
Valuation:
N/A
Permit #:
BRCM-25-005198
Status:
complete
Fee:
$115
Permit Type:
Interior trades only
Building Type:
N/A
New residential int lp fixture (80, 00 btu gas furnace) for <font color="#b3000c">05/16/22- revised from natrual gas to lp gas</font><div><span>single
Valuation:
N/A
Permit #:
202202458
Status:
issued
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
New residential heating and air conditioning system for <div><span style="background-color: rgb(229 229 229);">single family dwelling with atta
Valuation:
N/A
Permit #:
202202466
Status:
issued
Fee:
N/A
Permit Type:
Hvacr
Building Type:
N/A
New residential heating and air conditioning systems for <div><span style="background-color: rgb(229 229 229);">single family dwelling with attach
Valuation:
N/A
Permit #:
202202465
Status:
issued
Fee:
N/A
Permit Type:
Hvacr
Building Type:
N/A
New residential lp fixture (80, 000 btu furnace) for <font color="#b3000c">05/16/22- cm revised from natrual gas to lp gas</font><span> </span><di
Valuation:
N/A
Permit #:
202202457
Status:
issued
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
Direct replacement of 2 ton air conditioning and gas furnace 60 000 btus
Valuation:
N/A
Permit #:
BRCM-25-006348
Status:
complete
Fee:
$88
Permit Type:
Interior trades only
Building Type:
N/A
Install new hvac equipment and ductwork for single family dwelling being renovated. gas work by others
Valuation:
$12,900
Permit #:
BRCM-25-019826
Status:
complete
Fee:
$115
Permit Type:
Trade work only
Building Type:
N/A
Install 3 ton air conditioning 80k btu gas furnace and ductwork. gas piping by others
Valuation:
N/A
Permit #:
BRCM-25-011779
Status:
complete
Fee:
$115
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of 2 ton air conditioning with equipment of same size and location
Valuation:
N/A
Permit #:
BRCM-25-012202
Status:
complete
Fee:
$57
Permit Type:
Interior trades only
Building Type:
N/A
Install (1) 36000 btu air-con system heat pump as per code
Valuation:
N/A
Permit #:
COM2024-87993
Status:
expired
Fee:
$57
Permit Type:
Other
Building Type:
N/A
Direct replacement of air conditioning and gas furnace. no new gas piping
Valuation:
N/A
Permit #:
BRCM-25-012703
Status:
complete
Fee:
$88
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of 2.5 ton heat pump with equipment of same size and location
Valuation:
N/A
Permit #:
BRCM-25-012082
Status:
complete
Fee:
$57
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of 2 ton air conditioning with equipment of same size and location
Valuation:
N/A
Permit #:
MECH-240441
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace all water supply piping for house being renovated
Valuation:
N/A
Permit #:
BRCM-25-016666
Status:
complete
Fee:
$367
Permit Type:
Interior trades only
Building Type:
N/A
Direct replacement of 3 ton heat pump with equipment of same size and location
Valuation:
N/A
Permit #:
MECH-240037
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential replacement of heating & air conditioning
Valuation:
N/A
Permit #:
202300101
Status:
issued
Fee:
N/A
Permit Type:
Hvacr
Building Type:
N/A
Replacement of 3 ton heat pump and 80k btu gas furnace
Valuation:
N/A
Permit #:
MECH-230182
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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License # 14646
Columbia, MD
125
BZ Score
-
Avg Project
-
Projects
127
BZ Score
$42.5K
Avg Project
-
Projects
128
BZ Score
$1
Avg Project
-
Projects
Sean B Klein Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Sean B Klein License info
Verified License
| License # | 6522 |
| Status | Active |
| State | Maryland |
| Type | Plumbers |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Sean B Klein 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 # | 2488 |
| Status | Active |
| State | Maryland |
| Type | Heating, Ventilation, Air Conditioning And Refrigeration |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Sean B Klein 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 # | 15643 |
| Status | Active |
| State | Maryland |
| Type | Architect Architects |
- When BuildZoom last verified this license, it had an expiration date of December, 2014. Check the current license status of Sean B Klein with 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 # | 78909 |
| Status | Active |
| State | Maryland |
- When BuildZoom last verified this license, it had an expiration date of February, 2015. Check the current license status of Sean B Klein with the Maryland Department of Labor, Licensing & Regulation
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
152
Permits
- Building permit records show that Sean B Klein has worked on 152 permitted projects.
Sean B Klein Employees
MK
Michael B. Klein
Owner
MK
Michael Francis Klein
Owner
SK
Sean B Klein
Owner