Updated: Jun 10, 2026
Location and Projects
Address
13119 Weatherfield Dr., Saint Louis, MO, 63146
Use our bidding system to
request a quote
Kdya Group Usa HVAC/Mechanical Contractor
Kdya Group Usa LLC, 13119 Weatherfield Dr, St. Louis, MO (Owned by: Kunlun Tang) holds a Mechanical license and 5 other licenses according to the St Louis County license board.
Their BuildZoom score of 105 ranks in the top 8% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Kdya Group Usa LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Kdya Group Usa LLC Contact Information
Phone Number: (314) 504-6448
Edit
Address: 13119 Weatherfield Dr., St. Louis, MO 63146
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Kdya Group Usa LLC St. Louis
Quality
105
92nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Kdya Group Usa LLC has a BuildZoom score of 105, which places them above 92% of 23,328 contractors in Missouri.
Activity
|
11 projects
|
2025 |
|
7 projects
|
2024 |
|
12 projects
|
2023 |
Our building permit records indicate that Kdya Group Usa LLC has worked on at least
30.0 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
|
29 projects
|
Mechanical projects |
|
28 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Kdya Group Usa LLC mostly works on
mechanical project
and hvac project
projects.
Pricing
|
9 projects
|
< $5k |
|
19 projects
|
$5k-$20k |
The typical size of their permits is approximately $5,876. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Not illuminated attached sign wall area: (20) (13)x (70) (92)= 2750 sq. ft sign area: 30x232.75=48.48 sq. ft percentage of wall area: 1.76%
Valuation:
$5,178
Permit #:
25-1670
Status:
complete
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Replacement of 2ton outdoor unit and indoor coil with 40k btu gas furnace
Valuation:
$6,500
Permit #:
25MEC-03876
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replace a 4ton outdoor unit and indoor coil with 96% high energy efficient 100k btu gas furnace
Valuation:
$9,000
Permit #:
25MEC-06300
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replacing 60k btu gas furnace. requiring air conditioning system inspection at same time due to concerned may non-inspected from previous owner
Valuation:
$2,280
Permit #:
22MEC-02262
Status:
issued
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replaced 3.5ton outdoor air conditioning unit and indoor coil with 100k btu up flow gas furnace
Valuation:
$7,500
Permit #:
22MEC-12167
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replace 2.5ton outdoor unit and indoor coil with 60k btu up flow 80% gas furnace
Valuation:
$6,600
Permit #:
25MEC-08814
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replace 2ton outdoor unit and indoor coil with 60k btu 80% up flow gas furnace
Valuation:
$6,600
Permit #:
25MEC-06938
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
(npr) replacement of 5ton cooling air conditioning systems and 120k btu 96% high efficiency gas furnace
Valuation:
$8,930
Permit #:
ME24-000333
Status:
complete
Fee:
N/A
Permit Type:
Single family repair
Building Type:
N/A
3ton outdoor air conditioning and indoor coil with 79k btu gas furnace inspection required
Valuation:
$4,000
Permit #:
23MEC-02635
Status:
complete
Fee:
$126
Permit Type:
Replacement
Building Type:
N/A
Replace 2.5ton outdoor unit and indoor coil with 10kw electric furnace
Valuation:
$5,000
Permit #:
23MEC-02603
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replacement of 4 ton outdoor condenser unit and indoor coil with 100k btu 80% gas furnace
Valuation:
$9,800
Permit #:
24MEC-03465
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replace 4ton outdoor unit and indoor coil with 100k btu gas furnace
Valuation:
$7,500
Permit #:
23MEC-03286
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replacing 2.5ton outdoor air conditioning unit and indoor coil
Valuation:
$3,950
Permit #:
23MEC-03896
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replaced 4ton outdoor air conditioning unit and indoor coil with 100k btu gas furnace
Valuation:
$6,500
Permit #:
22MEC-11749
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Outdoor 2ton air conditioning and indoor coil with 80% gas furnace installation
Valuation:
$4,500
Permit #:
24MEC-02741
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replace and install 4ton cooling systems and 100k btu 80% gas furnace
Valuation:
$6,600
Permit #:
24MEC-06188
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replacement of outdoor 3.5 air conditioning and indoor coil with 80% 100k btu up flow gas furnace
Valuation:
$8,500
Permit #:
23MEC-09465
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replaced 1st floor outdoor air conditioning unit and indoor coil with gas furnace
Valuation:
$4,100
Permit #:
22MEC-08135
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replaced 5ton air conditioning and indoor coil with 120k btu 80% gas furnace replaced 3ton air conditioning and indoor coil with 60k btu 80% gas furnace
Valuation:
$13,000
Permit #:
20MEC-10060
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replacement of 3ton outdoor condenser and indoor coil with 80% gas furnace
Valuation:
$4,100
Permit #:
22MEC-05906
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Similar Contractors See more
119
BZ Score
$8K
Avg Project
-
Projects
122
BZ Score
$4.5K
Avg Project
-
Projects
License # P7241
Saint Louis, MO
119
BZ Score
$7K
Avg Project
-
Projects
Recent Buildzoom Projects
Let us find you an HVAC pro in your area today
We'll search our vast network of HVAC Pros and connect
you with one that meets your needs today.
Verified License
BuildZoom confirmed this contractor's license
Kdya Group Usa LLC License info
Verified License
| License # | HVR-5669 |
| Status | Active |
| County | St Louis County |
| Type | Mechanical |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Kdya Group Usa LLC at the Saint Louis County Department of Public Works.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | MEC5868579 |
| Status | Active |
| City | University City |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of July, 2024. Check the current license status of Kdya Group Usa LLC with the City of University City
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| Status | Active |
| City | Town And Country |
- When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Kdya Group Usa LLC with the City of Town and Country
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | MEC4736248 |
| Status | Inactive |
| City | University City |
| Type | Mechanical Contractor |
- According to the City of University City, 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 Kdya Group Usa LLC at the City of University City.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | St. Charles County |
| Type | Mechanical |
- According to the St. Charles County Department of Development & Business Services, 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
| Status | Inactive |
| County | St. Charles County |
| Type | Hvacr Contractor (Class B) |
- According to the St. Charles County Department of Development & Business Services, 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.
105
BuildZoom Score
64
Permits
- Building permit records show that Kdya Group Usa LLC has worked on 64 permitted projects.
Kdya Group Usa LLC Employees
KT
Kunlun Tang
Owner
TT
Tony Tang
Owner
I have been having heating and cooling issues with my house, and have called over 5 different HVAC companies to diagnose and provide quotes for installing a new system. In the end I decided to use KDYA Group USA, LLC (also known as KDYA Heating and Cooling) to install a new central air conditioning system for my home. They were very professional and knowledgeable. They didn't just install it, they studied my entire house's vents, airflow, air circulation, etc. After they installed it, my house suddenly felt like one, comfortable and the temperature was so even and balanced everywhere. I highly recommend KDYA company for installation and repairs.