Updated: May 06, 2026
Location and Projects
Address
79 LINDEN AVE., Ossining, NY, 10562
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R&M Air Conditioning
R&M Air Conditioning, 79 Linden Ave, Putnam County, NY (Owned by: John De Christopher) holds a Hvac license and 4 other licenses according to the Putnam County license board.
Their BuildZoom score of 91 ranks in the top 37% of 77,888 New York licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring R&M Air Conditioning, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
R&M Air Conditioning Contact Information
Phone Number: (914) 739-7956
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Address: 79 LINDEN AVE., Putnam County, NY 10562
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install new hydro-air heating & cooling system to service renovated space
Valuation:
$1,600
Permit #:
18187
Status:
issued
Fee:
$455
Permit Type:
N/A
Building Type:
N/A
Install hvac system hydro-air units for entire home as per specifications
Valuation:
$100,000
Permit #:
14328
Status:
issued
Fee:
$1,100
Permit Type:
N/A
Building Type:
N/A
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R&M Air Conditioning Reviews
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Verified License
BuildZoom confirmed this contractor's license
R&M Air Conditioning License info
Verified License
| Status | Active |
| County | Putnam County |
| Type | Hvac |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
Verified License
| Status | Active |
| County | Westchester County |
| Type | Home Improvement Contractor |
- BuildZoom verified this license was active as of May 2026.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Westchester County |
| Type | Home Improvement Contractor |
- According to the Consumer Westchester County, NY, 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.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 17077 |
| Status | Inactive |
| County | Rockland County |
| Type | Plumbing / Hvac |
- According to the Rockland County Consumer Protection Agency, 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 R&M Air Conditioning at the Rockland County Consumer Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 17077 |
| Status | Inactive |
| County | Rockland County |
| Type | Plumbing / Hvac |
- According to the Rockland County Consumer Protection Agency, 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 R&M Air Conditioning at the Rockland County Consumer Protection Agency.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
R&M Air Conditioning Employees
DM
Dechristopher John M.
DM
Dechristopher John Michael
JC
John De Christopher
Owner
TR
Thomas E Rundle
Owner