Updated: Jul 06, 2026
Location and Projects
Address
606 Cedar St, Saint Charles, IL, 60174
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Tdh Mechanical, Heating and Cooling Contractors Photos
Tdh Mechanical, Heating and Cooling Contractors
TDH Mechanical, Inc. is a heating and AC company based out of St Charles. We provide several services including not only air conditioner service but boiler and furnace repair as well. Our company proudly services Saint Charles, Batavia, and Elgin.
From BuildZoom: Tdh Mechanical, Heating and Cooling Contractors, 606 Cedar St, St. Charles, IL holds a license and 8 other licenses according to the Illinois license board.
Their BuildZoom score of 102 ranks in the top 11% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Tdh Mechanical, Heating and Cooling Contractors, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Tdh Mechanical, Heating and Cooling Contractors Contact Information
Phone Number: (630) 200-6201
Address: 606 Cedar St, St. Charles, IL 60174
Tdh Mechanical, Heating and Cooling Contractors St. Charles
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Tdh Mechanical, Heating and Cooling Contractors has a BuildZoom score of 102, which places them above 89% of 65,686 contractors in Illinois.
Activity
|
1 project
|
2025 |
|
2 projects
|
2024 |
|
4 projects
|
2023 |
Our building permit records indicate that Tdh Mechanical, Heating and Cooling Contractors has worked on at least
7.0 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 Tdh Mechanical, Heating and Cooling Contractors mostly works on
hvac project
projects.
Pricing
|
1 project
|
< $5k |
|
1 project
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
1 project
|
$250k-$500k |
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 Tdh Mechanical, Heating and Cooling Contractors
This is a sample of this contractor's permits. Click here to access their complete permit history.
Self-cert 2019 cbrc: interior buildout of existing 2 494 sf commercial building for use as office. (occ. group b cons. type iii-a)
Valuation:
$350,000
Permit #:
101039305
Status:
issued
Fee:
$998
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc - renovations to existing single family brick house. project includes lowering basement slab new interior stairs new plumbing work new electrical work and new radiant heat in basement. (occupancy group r-5 construction type 3a)**certified corrections subject to field inspections & audit **
Valuation:
$75,000
Permit #:
100977230
Status:
suspended
Fee:
$1,184
Permit Type:
N/A
Building Type:
N/A
Spr 2019 cbrc - interior renovation at 2-story single family brick & frame house w basement located as per plans**certified corrections subject to field inspections & audit **
Valuation:
$30,000
Permit #:
101008835
Status:
complete
Fee:
$850
Permit Type:
N/A
Building Type:
N/A
Interior remodel - bathroom owner: demetria giannisis # 773-551-0885 email: [email protected] 1st permit extension exp 2/28/2022 (free) 2nd permit extension exp 08/28/2022 (250) 3rd permit extension exp 02/28/2023 ($250)
Valuation:
$25,000
Permit #:
BHVC-20-04395
Status:
issued
Fee:
$152
Permit Type:
N/A
Building Type:
N/A
Convert from existing 3du to 5 du addition two dwelling units in basement in an existing three story 3b building - interior renovation to all floors and rear porch replacement as per plans existing a-2 occupancy.**certified corrections- - subject to field inspections & audit **
Valuation:
$100,000
Permit #:
100863279
Status:
complete
Fee:
$4,220
Permit Type:
N/A
Building Type:
N/A
Revision to permit no. 100957248 to change plumbing contractor to j plumbing co vent/refrig contractor to tdh mechanical inc
Valuation:
$85,000
Permit #:
100969582
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Kitchen remodel with wall removal
Valuation:
N/A
Permit #:
PM24-0388
Status:
issued
Fee:
N/A
Permit Type:
Alteration kitchen
Building Type:
N/A
Revision to permit #100729710 provide new fire separations between common and residential areas provide (4) new staircases in existing shafts revision to mep occupancy a-2 to remain
Valuation:
$450,000
Permit #:
100797006
Status:
complete
Fee:
$1,575
Permit Type:
N/A
Building Type:
N/A
Interior renovation to existing 80 d.u layouts to remain upgrade plumbing and electrical systems existing occupancy a-2 to remain existing construction type 1a garage 3b residential to remain no change
Valuation:
$450,000
Permit #:
100729710
Status:
complete
Fee:
$16,915
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for a new distillery on first floor of existing two story building including; new toilet rooms work area barrel storage grain storage and distilling area. new mechanical electrical and plumbing work
Valuation:
$100,000
Permit #:
100719394
Status:
complete
Fee:
$2,387
Permit Type:
N/A
Building Type:
N/A
Unit 115: furnace (replacement only): qty 1
Valuation:
$3,800
Permit #:
101005554
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
4 story***interior renovation of three story (4 story per czo) 5 unit dwelling as per plan. **certified plan corrections project - conditional permit: subject to field inspections **
Valuation:
$28,000
Permit #:
100701193
Status:
complete
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
Replace three existing split systems with three trane split systems two 4 ton one 2 1/2 ton air cooled r410a.the units serve the overflow room parlor hallway wash room
Valuation:
N/A
Permit #:
100803904
Status:
issued
Fee:
$225
Permit Type:
N/A
Building Type:
N/A
Interior tenant buildout for 2 000 sq ft first floor retail food establishment. self cert project
Valuation:
$100,000
Permit #:
100799217
Status:
complete
Fee:
$825
Permit Type:
N/A
Building Type:
N/A
Interior renovations in an existing 1 story afr w/basement and attic per plans
Valuation:
$75,000
Permit #:
101016612
Status:
suspended
Fee:
$625
Permit Type:
N/A
Building Type:
N/A
Self cert project- deconvert from 2 du to single family- interior alterations to all floors per plan
Valuation:
$45,000
Permit #:
100829102
Status:
complete
Fee:
$550
Permit Type:
N/A
Building Type:
N/A
Interior alteration of second floor unit.(conditional permit subject to field inspections)
Valuation:
$44,800
Permit #:
100860284
Status:
complete
Fee:
$800
Permit Type:
N/A
Building Type:
N/A
Remove/replace air conditioning
Valuation:
N/A
Permit #:
PB21-0285
Status:
final
Fee:
$40
Permit Type:
Air condition
Building Type:
N/A
Replace two rooftop units with two trane 3 ton rooftop units self contained air cooled r410a. the rooftop units serve unit #402
Valuation:
N/A
Permit #:
100792377
Status:
issued
Fee:
$150
Permit Type:
N/A
Building Type:
N/A
Replace furnace and central air conditioner system
Valuation:
$6,600
Permit #:
PM19-0337
Status:
final
Fee:
N/A
Permit Type:
Air conditioning ...
Building Type:
N/A
Tdh Mechanical, Heating and Cooling Contractors Reviews
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Tdh Mechanical, Heating and Cooling Contractors License info
Verified License
| License # | 17-1131 |
| Status | Active |
| State | Illinois |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for Tdh Mechanical, Heating and Cooling Contractors at the Illinois Commerce Commission.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 201601407 |
| Status | Active |
| City | Oak Park |
| Type | Contractor |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Tdh Mechanical, Heating and Cooling Contractors at the Village of Oak Park.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | CR7026 |
| Status | Active |
| County | Dupage County |
| Type | Hvac |
- When BuildZoom last verified this license, it had an expiration date of April, 2022. Check the current license status of Tdh Mechanical, Heating and Cooling Contractors with the County of Dupage Contractor Registration Information
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| County | Cook County |
| Type | Hvac |
- According to the Cook County Department of Building and Zoning, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-2159 |
| Status | Inactive |
| Town | Bartlett |
| Type | {U'license Type': U'heating/Air Conditioning'} |
- According to the Contractors Licensed in Bartlett, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Tdh Mechanical, Heating and Cooling Contractors at the Contractors Licensed in Bartlett.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-19-23320 |
| Status | Inactive |
| Town | Orland Park |
| Type | Hvac/Mechanical Contractor |
- According to the Village of Orland Park Contractor License, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Tdh Mechanical, Heating and Cooling Contractors at the Village of Orland Park Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| Status | Inactive |
| Town | Bartlett |
| Type | Hvac |
- According to the Contractors Licensed in Bartlett, the status of this license was at one point cancelled. However, this information may have changed.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CL-17-23320 |
| Status | Inactive |
| Town | Orland Park |
| Type | Hvac/Mechanical Contractor |
- According to the Village of Orland Park Contractor License, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Tdh Mechanical, Heating and Cooling Contractors at the Village of Orland Park Contractor License.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 11LICH-0041 |
| Status | Inactive |
| City | Evanston |
| Type | Hvac |
- According to the City of Evanston Building and Inspection Services, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Tdh Mechanical, Heating and Cooling Contractors at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
191
Permits
- Building permit records show that Tdh Mechanical, Heating and Cooling Contractors has worked on 191 permitted projects.