Updated: May 05, 2026
Location and Projects
Address
636 S. Mansfield, Ypsilanti, MI, 48197
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Pat Walters and Sons HVAC/Mechanical Contractor
Pat Walters and Sons, 636 S Mansfield, Ypsilanti, MI (Owned by: Patrick Walters) holds a Mechanical Contractor license and 5 other licenses according to the Michigan license board.
Their BuildZoom score of 0 does not rank in the top 50% of Michigan contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Pat Walters and Sons, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Pat Walters and Sons Contact Information
Phone Number: (734) 483-5811
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Address: 636 S. Mansfield, Ypsilanti, MI 48197
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Pat Walters and Sons Ypsilanti
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Pat Walters and Sons, click “This is My Business” to update your information.
Activity
|
278 projects
|
2025 |
|
331 projects
|
2024 |
|
289 projects
|
2023 |
Our building permit records indicate that Pat Walters and Sons has worked on at least
898.0 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 |
|
3 projects
|
Home Additions |
|
850 projects
|
HVAC projects |
|
712 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Pat Walters and Sons mostly works on
hvac project
and mechanical project
projects.
Pricing
|
11 projects
|
< $5k |
|
1 project
|
$100k-$250k |
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.
Replacing a furnace and air conditioning unit (national comfort) that will be going inside a closet. both furnace and air conditioning will be replacing existing units
Valuation:
N/A
Permit #:
PM25-0329
Status:
final
Fee:
$155
Permit Type:
Mechanical
Building Type:
N/A
Install new air conditioner and rock electrical to do the electrical work and to take the electrical permit
Valuation:
N/A
Permit #:
P24-0208M
Status:
final
Fee:
$148
Permit Type:
Air conditioner
Building Type:
N/A
Replace furnace and air conditioning (install the air conditioning in the spring once weather is warmer)
Valuation:
N/A
Permit #:
MECHR25-0520
Status:
final
Fee:
$165
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install the air conditioning in the spring once weather is warmer)
Valuation:
N/A
Permit #:
MECHR25-0332
Status:
final
Fee:
$275
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install the air conditioning in the spring once weather is warmer)
Valuation:
N/A
Permit #:
ELECR25-0353
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Install new air conditioning (rock electrical to do the electrical and take the electrical permit)
Valuation:
N/A
Permit #:
MECHR25-1289
Status:
final
Fee:
$140
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install the air conditioning in spring when weather is warmer)
Valuation:
N/A
Permit #:
PM24-0752
Status:
final
Fee:
$133
Permit Type:
Heating
Building Type:
N/A
Replace furnace and air conditioning (install air conditioning in the spring once weather is warmer)
Valuation:
N/A
Permit #:
ELECR25-0432
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
*void - wrong workclass* replace furnace and air conditioning (install air conditioning in the spring)
Valuation:
N/A
Permit #:
MECHR25-0051
Status:
voided
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (a/c to be installed in the spring when weather is warmer)
Valuation:
N/A
Permit #:
PM25-0061
Status:
final
Fee:
$105
Permit Type:
Mechanical
Building Type:
N/A
Replace furnace and air conditioning (job will not be completed till spring air conditioning will be finished one weather is warmer)
Valuation:
N/A
Permit #:
PM24-0145
Status:
final
Fee:
$105
Permit Type:
Mechanical
Building Type:
N/A
Replace old furnace with a new furnace and replace old air conditioning in the spring with a new air conditioning. (install air conditioning in the spring when weather is warmer)
Valuation:
N/A
Permit #:
MECHR24-0150
Status:
final
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
Replace old furnace with a new furnace and replace old air conditioning in the spring with a new air conditioning. (install air conditioning in the spring when weather is warmer)
Valuation:
N/A
Permit #:
ELECR24-0128
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install the air conditioning when weather is warmer)
Valuation:
N/A
Permit #:
PM25-0002
Status:
issued
Fee:
$195
Permit Type:
Mechanical
Building Type:
N/A
Install 2 mini splits and rock electrical will be doing the electrical permit
Valuation:
N/A
Permit #:
PM24-0567
Status:
suspended
Fee:
$85
Permit Type:
Mechanical
Building Type:
N/A
Replace furnace and air conditioning (install air conditioning in the spring)
Valuation:
N/A
Permit #:
MECHR25-0108
Status:
final
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install air conditioning in the spring)
Valuation:
N/A
Permit #:
ELECR25-0107
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install air conditioning in the spring)
Valuation:
N/A
Permit #:
MECHC25-0024
Status:
final
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install air conditioning in the spring)
Valuation:
N/A
Permit #:
MECHC25-0022
Status:
final
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Replace furnace and air conditioning (install air conditioning in the spring)
Valuation:
N/A
Permit #:
ELECC25-0020
Status:
final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Pat Walters and Sons License info
Verified License
| License # | 7100199 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Pat Walters and Sons at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7100199 |
| Status | Active |
| State | Michigan |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2025. Check the current license status of Pat Walters and Sons with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 7100199 |
| Status | Active |
| State | Michigan |
| Type | Plumbing Contractor |
- When BuildZoom last verified this license, it had an expiration date of August, 2022. Check the current license status of Pat Walters and Sons with the Michigan Department of Licensing & Regulatory Affairs
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 312277 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & 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 Pat Walters and Sons at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 312277 |
| Status | Inactive |
| State | Michigan |
| Type | Boiler Installer |
- According to the Michigan Department of Licensing & 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 Pat Walters and Sons at the Michigan Department of Licensing & Regulatory Affairs.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CONT-3156 |
| Status | Inactive |
| City | Ann Arbor |
| Type | Contractor |
- According to the The City of Ann Arbor, MI, 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 Pat Walters and Sons at the The City of Ann Arbor, MI.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are Pat Walters and Sons, click “This is My Business” to update your information.
4.6K
Permits
- Building permit records show that Pat Walters and Sons has worked on 4612 permitted projects.
Pat Walters and Sons Employees
PS
Pat Walters & Sons
Owner
PW
Patrick Walters
Owner
PW
Patrick J Walters