Updated: May 19, 2026
Location and Projects
Address
7 Gaston St, Dorchester, MA, 02121
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General Air Conditioning
General Air Conditioning, 7 Gaston St, Dorchester, MA (Owned by: Leroy Alexander) holds a Sheet Metal Business license and 9 other licenses according to the Massachusetts license board.
Their BuildZoom score of 99 ranks in the top 15% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring General Air Conditioning, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
General Air Conditioning Contact Information
Phone Number: (617) 427-7370
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Address: 7 Gaston St, Dorchester, MA 02121
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General Air Conditioning Dorchester
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
General Air Conditioning has a BuildZoom score of 99, which places them above 85% of 139,240 contractors in Massachusetts.
Activity
|
3 projects
|
2025 |
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that General Air Conditioning has worked on at least
5.0 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
|
HVAC projects |
Analyzing permits over the last 4 years shows that General Air Conditioning mostly works on
hvac project
projects.
Pricing
|
3 projects
|
$5k-$20k |
|
1 project
|
$1mil+ |
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 General Air Conditioning
This is a sample of this contractor's permits. Click here to access their complete permit history.
Total hvac system upgrade which included minor carpentry work
Valuation:
$3,449,000
Permit #:
BLD242532
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolition and cap one (1) existing toilet in suite 110 and install two new hand sinks (lavatories) in suite 220
Valuation:
$16,000
Permit #:
P-25-0273
Status:
complete
Fee:
$320
Permit Type:
Renovation
Building Type:
N/A
Demolition and cap one (1) existing toilet in suite 110 and install two new hand sinks (lavatories) in suite 220
Valuation:
$16,000
Permit #:
P-25-0273
Status:
complete
Fee:
$320
Permit Type:
Renovation
Building Type:
N/A
Installation of outdoor water meter
Valuation:
N/A
Permit #:
P25-000254
Status:
complete
Fee:
N/A
Permit Type:
Residential 1-2 f...
Building Type:
N/A
Relocation of one (1) toilet an one (1) hand sink (lavatory)
Valuation:
$8,000
Permit #:
P-25-0274
Status:
complete
Fee:
$160
Permit Type:
Renovation
Building Type:
N/A
Patch and repair roof; block all windows with wood install new fencing around building's perimeter; and install interior//exterior lighting and cameras
Valuation:
$45,000
Permit #:
BP-2023-0852
Status:
issued
Fee:
$562
Permit Type:
Repair roof
Building Type:
N/A
Welding for installation of fuel oil piping and tank for emergency generator for duration of new work associated with new addition and renovation of bldg. (dpl) *** bfd paid detail required
Valuation:
$0
Permit #:
CBW290335
Status:
Closed
Fee:
$60
Permit Type:
N/A
Building Type:
N/A
Enclose existing deck to create vestibule addition 9 x 6 (app189624)(z20230138) - single family house
Valuation:
$8,000
Permit #:
A20230316
Status:
issued
Fee:
$75
Permit Type:
Residential addit...
Building Type:
N/A
Burning, welding & soldering of steel & copper pipe in rooms 831, 804, 807, 835 & storage rm 663 & kitchen work being done @ 900 boylston st**1-firefighter required for each area of work*** bfd paid detail
Valuation:
$0
Permit #:
CBW128811
Status:
Closed
Fee:
$62
Permit Type:
N/A
Building Type:
N/A
Enclose existing deck to construct 9 x 6 1-story addition. no change to footpint
Valuation:
N/A
Permit #:
Z20230138
Status:
issued
Fee:
$25
Permit Type:
Residential zonin...
Building Type:
N/A
Welding and burning of steel pipe for relocation of existing 2" steam condensate piping for renovation project *** bfd paid detail required
Valuation:
$0
Permit #:
CBW167119
Status:
Closed
Fee:
$23
Permit Type:
N/A
Building Type:
N/A
Install two new 20 amp circut install 2 new vfc drives disconnect old roof unit reconnect new unit existing feed
Valuation:
N/A
Permit #:
E-13-0063
Status:
N/A
Fee:
$50
Permit Type:
N/A
Building Type:
Education
All necessary sheet metal work for the installation of two (2) 3-ton air handlers in the attic and one condensing boiler in the basement of the building
Valuation:
$20,000
Permit #:
M-17-0073
Status:
final
Fee:
$240
Permit Type:
Renovation
Building Type:
1to2family
Low voltage - 21 gas fired furnace and condenser - 1st & 2nd floor.
Valuation:
N/A
Permit #:
W000036809
Status:
ISSUED
Fee:
N/A
Permit Type:
Low Voltage Wiring
Building Type:
903 Municipalities
Cutting burning & welding of steel pipe associated with heating & air conditioning system
Valuation:
$0
Permit #:
CBW230192
Status:
Closed
Fee:
$142
Permit Type:
N/A
Building Type:
N/A
Welding only for installation of boilers in boiler room @ samuel mason elementary school (dpl 9-15-2011) *** bfd paid detail required
Valuation:
$0
Permit #:
CBW72068
Status:
Closed
Fee:
$40
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
MECH-055655-2017
Status:
issued
Fee:
N/A
Permit Type:
Replacement
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
MECH-055228-2017
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
GAS-055039-2017
Status:
issued
Fee:
N/A
Permit Type:
New
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
MECH-038635-2016
Status:
issued
Fee:
N/A
Permit Type:
Renovation
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
General Air Conditioning License info
Verified License
| Status | Active |
| State | Massachusetts |
| Type | Sheet Metal Business |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for General Air Conditioning at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 11117 |
| Status | Active |
| State | Massachusetts |
| Type | Electrician |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for General Air Conditioning at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 4774 |
| Status | Active |
| State | Massachusetts |
| Type | Plumbing Business |
- When BuildZoom last verified this license, it had an expiration date of May, 2026. Check the current license status of General Air Conditioning with the Commonwealth of Massachusetts E-Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 11117 |
| Status | Active |
| State | Massachusetts |
| Type | Master Electrician |
- When BuildZoom last verified this license, it had an expiration date of July, 2016. Check the current license status of General Air Conditioning with the Massachusetts Department of Consumer Affairs and Business Regulation
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | MA30955P |
| Status | Active |
| State | Massachusetts |
| Type | Pipefitter - Master License |
- BuildZoom has not verified this license since January, 2010.
Verify this license's status for General Air Conditioning at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 2812 |
| Status | Active |
| State | Massachusetts |
| Type | Plumbing Corporation |
- When BuildZoom last verified this license, it had an expiration date of May, 2016. Check the current license status of General Air Conditioning with the Massachusetts Department of Consumer Affairs and Business Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2378 |
| Status | Inactive |
| State | Massachusetts |
| Type | Electrical Business |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 General Air Conditioning at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 2812 |
| Status | Inactive |
| State | Massachusetts |
| Type | Plumbing Business |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 General Air Conditioning at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 4390 |
| Status | Inactive |
| State | Massachusetts |
| Type | Plumbing Business |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 General Air Conditioning at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 4189 |
| Status | Inactive |
| State | Massachusetts |
| Type | Plumbing Business |
- According to the Commonwealth of Massachusetts E-Licensing Board, 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 General Air Conditioning at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
23
Permits
- Building permit records show that General Air Conditioning has worked on 23 permitted projects.
General Air Conditioning Employees
LA
Leroy Alexander
Owner
LO
Leslie G. Osborne
Owner
WJ
William K. Jenkins