Updated: Aug 22, 2025
Location and Projects
Address
2135 Flat Rock Rd, Stockbridge, GA, 30281
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Gng Mechanical Services
Gng Mechanical Services, 2135 Flat Rock Rd, Stockbridge, GA (Employee: Gregory Gissendanner) holds a license according to the Georgia license board.
Their BuildZoom score of 106 ranks in the top 7% of 84,062 Georgia licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Gng Mechanical Services, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Gng Mechanical Services Services
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Gng Mechanical Services Contact Information
Phone Number: (770) 870-4308
Address: 2135 Flat Rock Rd, Stockbridge, GA 30281
Gng Mechanical Services Stockbridge
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Gng Mechanical Services has a BuildZoom score of 106, which places them above 93% of 84,062 contractors in Georgia.
Activity
|
5 projects
|
2025 |
|
9 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Gng Mechanical Services has worked on at least
18.0 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
|
Home Additions |
|
16 projects
|
HVAC projects |
|
4 projects
|
Mechanical projects |
Analyzing permits over the last 4 years shows that Gng Mechanical Services mostly works on
hvac project
and mechanical project
projects.
Pricing
|
2 projects
|
< $5k |
|
4 projects
|
$5k-$20k |
|
1 project
|
$100k-$250k |
|
2 projects
|
$250k-$500k |
The typical size of their permits is approximately $8,000. 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.
Building Permits by Gng Mechanical Services
This is a sample of this contractor's permits. Click here to access their complete permit history.
To install two six foot kitchen hood ventilation system complete. gng will provided hoods exhaust fans make-up air fans curbs caps stainless steel wall panels divider bars and fire suppression system all labor all duct work and hood skirt. also included is gas lines for cooking equipment only. permit will be provided for hood work only. hoods are 60 inches low profile. plans are chang... see more
Valuation:
$8,000
Permit #:
25-06209-MC
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
3/27/24 hvac submitted updated/revised subform (onbased)- jj 02/07/2024 revised to check the hvac box.jf 12/11/23 tpr on file - cemc needs to revise permit to reflect added 224 sq heated sunroom per matt anthony fire damage see permit 2023-010169. repair from fire to include. rebuild the framing of roof mechanical repairs masonry finishes trims flooring walls window and doors also the... see more
Valuation:
$382,506
Permit #:
2023-011123
Status:
final
Fee:
$2,714
Permit Type:
N/A
Building Type:
N/A
Job 1: to install one (10)ten foot kitchen hood ventilation system gng will provided hood exhaust fan make-up air fan job 2: gas line installation included for all cooking and heating equipment with 2lb pressure vales included for all equipment. job 3: gng will include all hvac equipment all duct work return air ducts with setting and mounting of inside and outside units. 13 seer 208/... see more
Valuation:
N/A
Permit #:
BM-202402563
Status:
issued
Fee:
$375
Permit Type:
N/A
Building Type:
Existing
Move furnace from garage to attic. install one 100k btus gas furnace with 5ton coil supply box and return box. reattach existing ductwork and addition 5 new supply vents with 3 returns with one 5 ton 410a unit
Valuation:
$7,000
Permit #:
3149575
Status:
issued
Fee:
$170
Permit Type:
D-HVAC
Building Type:
N/A
Permit voided - need to apply for mechanical permit (stand alone) to install one type1 12 foot kitchen ventilation hood system with duct work and fans with gas lines
Valuation:
$8,000
Permit #:
25-06179-BC
Status:
revoked
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
To install one type1 kitchen ventilation hood system complete with exhaust duct work
Valuation:
N/A
Permit #:
BM-202502017
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
To install one low profile kitchen ventilation hood system with duct work and fans and gas lines for cooking equipment only
Valuation:
$5,500
Permit #:
3169887
Status:
complete
Fee:
$225
Permit Type:
D-HVAC
Building Type:
N/A
New single family dwelling. on septic. waterpointe lot 23. zoned rs-180. floodplain
Valuation:
$496,966
Permit #:
BRES0622-04645
Status:
expired
Fee:
$2,700
Permit Type:
N/A
Building Type:
N/A
** 11/19/2024 second tpr scanned on file homeowner instructed by inspector to fill out another tpr...kac** 11/1/24 tpr rcvd via electrician- ga pwr- jj revision to include remodeling of two bathrooms and kitchen 01/03/2024 dg. new framing new electrical new hvac new plumbing new bathroom; see voided permit # 2023-010089
Valuation:
$8,000
Permit #:
2023-010388
Status:
expired
Fee:
$1,290
Permit Type:
N/A
Building Type:
N/A
To install one type1 kitchen ventilation hood system
Valuation:
N/A
Permit #:
BM-202501416
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
Existing
Added 224 sq ft heated sunroom. see permit 2023-011123. inq-f-2023-00361. zoned r-20. ok for addition in rear of property within required setbacks. max imperv 35%
Valuation:
$4,000
Permit #:
2023-011595
Status:
final
Fee:
$215
Permit Type:
N/A
Building Type:
N/A
To install a 16 foot commercial kitchen ventilation system complete with exhaust fan and make up air fan including ductwork. also to include the installation for gas line
Valuation:
N/A
Permit #:
BM-202100832
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
Existing
To install one new 10 foot commercial kitchen ventilation hood system with exhaust fan and make up air fan
Valuation:
N/A
Permit #:
BM-202401291
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
Existing
Interior finish ste a & b
Valuation:
$120,000
Permit #:
COMBLD2024-00183
Status:
final
Fee:
$1,250
Permit Type:
N/A
Building Type:
N/A
Hvac duct alterations- removing insulated duct and replacing with spiral duct
Valuation:
N/A
Permit #:
BM-202204867
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
Existing
To install one heat pump package unit
Valuation:
N/A
Permit #:
BM-202206084
Status:
issued
Fee:
$275
Permit Type:
N/A
Building Type:
N/A
To install one 2ton air handler and two 3ton air handlers
Valuation:
N/A
Permit #:
BM-202206112
Status:
filed
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
07/16/24 - permit voided already on existing permits 2023-011123 & 2023-011595 - gm to change out a 5ton air conditioning gas system
Valuation:
$2,200
Permit #:
2024-000486
Status:
canceled
Fee:
$65
Permit Type:
N/A
Building Type:
N/A
New single family on acreage lot of record water receipt in file
Valuation:
N/A
Permit #:
BLD2020-05078
Status:
final
Fee:
$643
Permit Type:
Complete building
Building Type:
N/A
Commercial ventilation kitchen hood installations (1) 8 captiveaire: 6630-ndi-acpsp-f (1) 7'6 captiveaire: 166-misc-psp lic#=cr109054 type=hvac2 exp dt=15-nov-19 id=ac895305
Valuation:
$0
Permit #:
953149
Status:
suspended
Fee:
$280
Permit Type:
D-HVAC
Building Type:
N/A
Gng Mechanical Services Reviews
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Gng Mechanical Services License info
Verified License
| License # | GACR109054 |
| Status | Active |
| State | Georgia |
- BuildZoom has not verified this license since March, 2015.
Verify this license's status for Gng Mechanical Services at the Georgia Department of Professional Licensing.
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
96
Permits
- Building permit records show that Gng Mechanical Services has worked on 96 permitted projects.
Gng Mechanical Services Employees
GG
Gregory Gissendanner