Updated: Dec 05, 2025
Location and Projects
Address
2971 Stone Bridge Trl SW, Conyers, GA, 30094
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Gd & B3 One Source Mechanical
Their BuildZoom score of 106 ranks in the top 7% of 84,062 Georgia licensed contractors.
If you are thinking of hiring Gd & B3 One Source Mechanical, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Gd & B3 One Source Mechanical Contact Information
Phone Number: (404) 914-6498
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Address: 2971 Stone Bridge Trl SW, Conyers, GA 30094
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Gd & B3 One Source Mechanical Conyers
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Gd & B3 One Source Mechanical has a BuildZoom score of 106, which places them above 93% of 84,062 contractors in Georgia.
Activity
|
13 projects
|
2025 |
|
14 projects
|
2024 |
|
10 projects
|
2023 |
Our building permit records indicate that Gd & B3 One Source Mechanical has worked on at least
37.0 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
|
Home Additions |
|
24 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Gd & B3 One Source Mechanical mostly works on
hvac project
and home addition
projects.
Pricing
|
2 projects
|
< $5k |
|
5 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $40,000. 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 Gd & B3 One Source Mechanical
This is a sample of this contractor's permits. Click here to access their complete permit history.
**12/12/2023 gc called with hvac contractor re email that was just rec'd today; explained to gc and hvac contractor that license was expired even went to secretary of state website and his license had not been renewed and explained that he would not be able to schedule. hvac contractor stated that he did not want to talk to me and hung up.....kac **12/11/2023 gc sent letter to remove ... see more
Valuation:
$180,000
Permit #:
2023-004244
Status:
final
Fee:
$2,988
Permit Type:
N/A
Building Type:
N/A
City of duluth exterior modifications to four single-story office buildings. work includes painting the exterior facades and the addition of fiber cement entry features. all masonry and aluminum storefront are existing to remain
Valuation:
N/A
Permit #:
COMBLD2023-00388
Status:
triage
Fee:
$500
Permit Type:
N/A
Building Type:
N/A
Interior finish suite q interior finish suite q (name changed from talpa supermarket to supermercado talpa 12 llc 8/9/2022 see documents for letter from architect)
Valuation:
$850,000
Permit #:
COMBLD2021-02598
Status:
final
Fee:
$5,180
Permit Type:
N/A
Building Type:
N/A
Installing two 3 ton hvac systems<br >***see notes in log*** <br > gas line pressure test
Valuation:
$8,000
Permit #:
3166363
Status:
complete
Fee:
$130
Permit Type:
D-HVAC
Building Type:
N/A
Adding 2 story addition to home and 3 car garage - 4 bedrooms 3 bathrooms extending master bedroom and living room on 2nd story of new garage adding a covered deck (10x24) and a front porch (5.3x3710)
Valuation:
$201,625
Permit #:
RESBLD2021-02830
Status:
expired
Fee:
$1,390
Permit Type:
N/A
Building Type:
N/A
Installing two 3 ton hvac systems bathroom fans dryer vent and gas line pressure test
Valuation:
$8,000
Permit #:
3166362
Status:
complete
Fee:
$295
Permit Type:
D-HVAC
Building Type:
N/A
Installing two 3 ton hvac systems bathroom fans dryer vent and gas line pressure test
Valuation:
$8,000
Permit #:
3166361
Status:
complete
Fee:
$195
Permit Type:
D-HVAC
Building Type:
N/A
Addition to residence 22.5x16 addition of mastersuite and bathroom 24.7x12.2 covered deck with stairs remove old deck and sunrun addition new 16x25 mastersuite with bathroom addition new 12 x 20 deck
Valuation:
$40,000
Permit #:
RESBLD2023-00629
Status:
final
Fee:
$246
Permit Type:
N/A
Building Type:
N/A
Remodel to a bp gas station
Valuation:
$452,550
Permit #:
COMBLD2023-00338
Status:
final
Fee:
$2,913
Permit Type:
N/A
Building Type:
N/A
Installation of 1 (2 and half tons heat pump)
Valuation:
N/A
Permit #:
BM-202500872
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
N/A
Interior finish suite a day care office - ageless day program (cag). suite a
Valuation:
$45,000
Permit #:
COMBLD2023-01144
Status:
complete
Fee:
$835
Permit Type:
N/A
Building Type:
N/A
Building/residential/basement finish/application
2023-04-17
10/24/23 1st time renewal - lw **left message with hvac contractor tro per ah..kac** 06/22/2023 received a revision for plum.jf 05/22/23- no hvac work being done per contractor - gm basement finish to include kitchen - pantry - new ofcs
Valuation:
N/A
Permit #:
2023-003387
Status:
final
Fee:
$1,023
Permit Type:
N/A
Building Type:
N/A
Installation of 2.5 ton hvac system
Valuation:
N/A
Permit #:
BM-202501036
Status:
issued
Fee:
$225
Permit Type:
N/A
Building Type:
N/A
Installation of 1.5 heat pump system
Valuation:
N/A
Permit #:
BM-202501035
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
Existing
Kitchen remodel replace few windows master remodel resurface flooring painting first floor
Valuation:
$30,000
Permit #:
2024-004069
Status:
final
Fee:
$263
Permit Type:
N/A
Building Type:
N/A
Commercial - new tenant - moving into new space and need co
2019-02-22
Plan revision for pex piping approved subject to code limitations 01/15/2019 d.g. environmental field compliance needed before co...hawthorne plaza...ste 42
Valuation:
$350,000
Permit #:
2018-006697
Status:
final
Fee:
$2,538
Permit Type:
N/A
Building Type:
N/A
Installing (1) two and a half heat pump system with new duct work and one dryer vent
Valuation:
N/A
Permit #:
BM-202402322
Status:
issued
Fee:
$175
Permit Type:
N/A
Building Type:
Existing
Installing (1) two ton straight cool system and a three ton straight cool hvac system
Valuation:
N/A
Permit #:
BM-202401240
Status:
issued
Fee:
$255
Permit Type:
N/A
Building Type:
N/A
8 feet grease hood installation duct work for existing (2) five tons air handlers and gas line pressure test
Valuation:
N/A
Permit #:
BM-202304980
Status:
issued
Fee:
$305
Permit Type:
N/A
Building Type:
Existing
Building/residential/basement finish/application
2023-08-23
Lock box 8601 converting laundry room in main level $7000. finish basement with 2 bedroom 1 bathroom and living room
Valuation:
$7,000
Permit #:
2023-008244
Status:
final
Fee:
$753
Permit Type:
N/A
Building Type:
N/A
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Gd & B3 One Source Mechanical Reviews
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Gd & B3 One Source Mechanical License info
License Not Verified
| License # | GACN210066 |
| Status | Active |
| State | Georgia |
| Type | Conditioned Air Non-Restricted |
- When BuildZoom last verified this license, it had an expiration date of November, 2025. Check the current license status of Gd & B3 One Source Mechanical with the Georgia Department of Professional Licensing
This is a sample of licensing data; click here to access a complete history.
106
BuildZoom Score
170
Permits
- Building permit records show that Gd & B3 One Source Mechanical has worked on 170 permitted projects.
Gd & B3 One Source Mechanical Employees
GB
George Barcolleh
GB
George D Barcolleh
Owner