Updated: Jul 10, 2026
Location and Projects
Address
90 WALSH COURT, Saint Charles, MO, 63301
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Thermal Refrigeration HVAC/Mechanical Contractor
Thermal Refrigeration, Inc, 90 Walsh Ct, St. Charles, MO (Owned by: William Muehling) holds a Mechanical license and 4 other licenses according to the St Louis County license board.
Their BuildZoom score of 106 ranks in the top 7% of 23,328 Missouri licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Thermal Refrigeration, Inc, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Thermal Refrigeration, Inc Contact Information
Phone Number: (636) 928-6608
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Address: 90 WALSH COURT, St. Charles, MO 63301
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Thermal Refrigeration, Inc St. Charles
Quality
106
93rd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Thermal Refrigeration, Inc has a BuildZoom score of 106, which places them above 93% of 23,328 contractors in Missouri.
Activity
|
10 projects
|
2025 |
|
4 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Thermal Refrigeration, Inc 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
|
16 projects
|
Mechanical projects |
|
12 projects
|
HVAC projects |
Analyzing permits over the last 4 years shows that Thermal Refrigeration, Inc mostly works on
mechanical project
and hvac project
projects.
Pricing
|
2 projects
|
< $5k |
|
7 projects
|
$5k-$20k |
|
7 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
3 projects
|
$100k-$250k |
The typical size of their permits is approximately $19,411. 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 Thermal Refrigeration, Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Rbo print logitix - to change a total of 10 like for like rooftop units. 5- 3 ton units 2- 4 ton units 1- 6 ton unit 1- 7.5 ton unit 1- 10 ton unit
Valuation:
$130,913
Permit #:
25MEC-01677
Status:
issued
Fee:
$425
Permit Type:
Replacement
Building Type:
N/A
Pizza hut - replacing a like for like giles free standing ventless recirculating hood description: hood fsh-2-ph 208-240/60/3 model# fsh-2-ph serial# 71340 070124 20 vac/vca: 208-240 hz: 60 phase: 3 amps: 50 emissions: 0.0000425 lower air flow limit: 493
Valuation:
$1,840
Permit #:
24MEC-06446
Status:
issued
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Penn station-to replace a like for like 4ton remote terminal unit as well as replace a like for like 5 ton remote terminal unit
Valuation:
$25,000
Permit #:
25MEC-00689
Status:
complete
Fee:
$158
Permit Type:
Replacement
Building Type:
N/A
St. lukes hospital - to replace 2 like for like walk in freezer refrigeration systems
Valuation:
$46,905
Permit #:
25MEC-01311
Status:
issued
Fee:
$158
Permit Type:
Replacement
Building Type:
N/A
Mechanical commercial mechanical
2023-06-21
***duct work requires plan review. resubmit and reference the permit that plans were reviewed under or resubmit and mark yes to plans will be submitted to upload plans***alter and extend duct work
Valuation:
$6,875
Permit #:
23MEC-05628
Status:
canceled
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Papa john's-to replace 1 like for like walk in cooler condensing unit and evaporator coil
Valuation:
$14,304
Permit #:
25MEC-04080
Status:
issued
Fee:
$91
Permit Type:
Replacement
Building Type:
N/A
Beleaf - to install a 14x14x12 wif box and two refrigeration units that will be 100% redundant
Valuation:
$106,056
Permit #:
25MEC-07817
Status:
issued
Fee:
$861
Permit Type:
Alteration
Building Type:
N/A
Moto mart earth city-to replace a like for like 7.5 ton remote terminal unit
Valuation:
$21,899
Permit #:
25MEC-00419
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Hydromat - to change a like for like 15 ton remote terminal unit
Valuation:
$32,251
Permit #:
25MEC-04832
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
To change 2 like for like rooftop units. 1 5 ton and 1 6 ton unit
Valuation:
$31,990
Permit #:
25MEC-03159
Status:
issued
Fee:
$126
Permit Type:
Replacement
Building Type:
N/A
Hydromat-to change a like for like 7.5 ton remote terminal unit
Valuation:
$19,411
Permit #:
25MEC-01450
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Hydromat-to change a like for like 3 ton remote terminal unit
Valuation:
$13,185
Permit #:
25MEC-00884
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
To install 6 new rooftop hvac units. 4 20 ton units and 2 10 ton units
Valuation:
$230,974
Permit #:
23MEC-09970
Status:
canceled
Fee:
N/A
Permit Type:
Addition
Building Type:
N/A
To install 6 new rooftop hvac units. 4 20 ton and 2 10 ton units
Valuation:
$230,974
Permit #:
23MEC-11246
Status:
complete
Fee:
$1,650
Permit Type:
Alteration
Building Type:
N/A
Mechanical commercial mechanical
2023-06-22
Allphazze painting and floors-alter and extend duct work. allphazza has a current permit: 23bld-00497
Valuation:
$6,875
Permit #:
23MEC-05679
Status:
complete
Fee:
$223
Permit Type:
Alteration
Building Type:
N/A
St. lukes-to replace a like for like mini split system air conditioning unit for the guard shack at st. lukes
Valuation:
$8,060
Permit #:
24MEC-10162
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Replacing 2 7.5 ton remote terminal unit with 2 15 ton remote terminal unit addition extension curbs (deutsche precision llc)
Valuation:
N/A
Permit #:
22MEC-05628
Status:
complete
Fee:
$544
Permit Type:
Alteration
Building Type:
N/A
Hydromat - to change 1 like for like 3 ton split system air conditioning unit
Valuation:
$14,638
Permit #:
25MEC-05737
Status:
issued
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Hydromat inc-hydromat cu#3 to replace a like for like rooftop air conditioning unit
Valuation:
$35,004
Permit #:
24MEC-09397
Status:
complete
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
Deutsche precision-to change a like for like 10 ton rooftop unit
Valuation:
$22,808
Permit #:
25MEC-07188
Status:
issued
Fee:
$79
Permit Type:
Replacement
Building Type:
N/A
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Thermal Refrigeration, Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Thermal Refrigeration, Inc License info
Verified License
| License # | X0121 |
| Status | Active |
| County | St Louis County |
| Type | Mechanical |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Thermal Refrigeration, Inc 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
| Status | Active |
| County | St Louis County |
| Type | Mechanical Contractor |
- When BuildZoom last verified this license, it had an expiration date of December, 2020. Check the current license status of Thermal Refrigeration, Inc with the Saint Louis County Department of Public Works
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | M224 |
| Status | Active |
| County | Jefferson County |
| Type | Mechanical |
- BuildZoom has not verified this license since February, 2016.
Verify this license's status for Thermal Refrigeration, Inc at the Jefferson County Building Division.
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 A) |
- 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.
106
BuildZoom Score
89
Permits
- Building permit records show that Thermal Refrigeration, Inc has worked on 89 permitted projects.
Thermal Refrigeration, Inc Employees
JK
John Kolisch
WM
William Muehling
Owner