Their BuildZoom score of 108 ranks in the top 5% of 65,686 Illinois licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Dial One Midwest Mechanical Service, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Ductwork extension/reconfiguration hydronic piping extension/reconfiguration repair/replacement affecting 2 systems : 1 split system(raucc604bt03a0d000020) 1 single package dx unit(prak720s7a4dfjj0m3b64aaf0000000c000000000s10000a0be00 on rooftop). electrical work under this permit = yes. locations: 0 residential unit(s) 1 non-residential unit(s) 1 interior common areas exterior work r... see more
Repair/replacement affecting 1 systems : 2 make up air unit(vts avs230 4th & 37th floor mechanical rooms). electrical work under this permit = no. locations: 0 residential unit(s) 0 non-residential unit(s) 4 interior common areas exterior work 4th & 37th mechanical rooms/rooftop units
Repair/replacement affecting 1 systems : 2 rooftop packaged unit(trane remote terminal unit rooftop). electrical work under this permit = no. locations: 0 residential unit(s) 2 non-residential unit(s) exterior work rooftop
Repair/replacement affecting 1 systems : 1 rooftop packaged unit(carrier 48v2uq50a2-6b8c3s0 roof). electrical work under this permit = no. locations: 0 residential unit(s) 1 non-residential unit(s) exterior work repair remote terminal unit serving the 3rd floor tech building
Ductwork extension/reconfiguration gas piping extension/reconfiguration repair/replacement affecting 3 systems : 1 make up air unit(reznor rpbl400 roof) 3 unit heater(reznor qty 1- m# rzudxc350 on 2nd fl qty 2 m#rzudcx225 on 3rd fl.) 1 split system(synergy duct furnace m# s9x2xd120us air conditioning m# 5tta3048a ). electrical work under this permit = yes. locations: 0 residential uni... see more
Hydronic piping extension/reconfiguration repair/replacement affecting 1 systems : 3 heat exchanger(dch-02-s-30-5-4). electrical work under this permit = yes. locations: 0 residential unit(s) 3 non-residential unit(s) 1 interior common areas exterior work cooling tower room on the roof of the john hancock
Spr 2019 cbrc: tenant buildout of hair product production/operations space in existing white box tenant space within existing 5 story building. partitions to create rooms associated mep. (occupancy group f-1; type ib construction) (**conditional permit subject to field inspections)
Repair/replacement affecting 1 systems : 2 rooftop packaged unit(trane ych480c4k*2a3mf4a0c rooftop trane ych600c4k*2a4pf4a0c rooftop). electrical work under this permit = no. locations: 0 residential unit(s) 2 non-residential unit(s) 2 interior common areas exterior work rooftop
Repair/replacement affecting 1 systems : 1 make up air unit(daikin cah062gdgm 3rd floor mechanical room). electrical work under this permit = yes. locations: 0 residential unit(s) 0 non-residential unit(s) 1 interior common areas 3rd floor mechanical room
Hydronic piping extension/reconfiguration repair/replacement affecting 1 systems : 1 chiller(trane model sehmf404v*45e5ad8l01d0we000000rw0m8a0). electrical work under this permit = yes. locations: 0 residential unit(s) 1 non-residential unit(s) exterior work rooftop
Gas piping extension/reconfiguration repair/replacement affecting 1 systems : 1 rooftop packaged unit(carrier 48fcea05a2a5-0a0a0 roof). electrical work under this permit = yes. locations: 0 residential unit(s) 1 non-residential unit(s) exterior work the roof
Ductwork extension/reconfiguration hydronic piping extension/reconfiguration repair/replacement affecting 1 systems : 10 fan coil unit(carrier). electrical work under this permit = no. locations: 0 residential unit(s) 1 non-residential unit(s) 1 interior common areas business
Dds 2019 cbrc: interior 2nd floor alterations to an existing commercial space to convert to a religious assembly as per plans (occupancy a-3 type iiib construction) consultant reviewer: v3 companies of il
Repair/replacement affecting 1 systems : 1 make up air unit(engineered air mua m# jx140 on roof). electrical work under this permit = no. locations: 0 residential unit(s) 1 non-residential unit(s) exterior work replacing heat exchangers on the roof's mua unit
New heat pump or refrigeration equip electrical work under this permit = no. locations: 0 residential unit(s) 0 non-residential unit(s) 1 interior common areas exterior work mechanical room and roof
BuildZoom verified this license was active as of February 2026.
Verify this license's status for Dial One Midwest Mechanical Service at the Village of Palatine Registered Contractors.
This is a sample of licensing data; click here to access a complete history.
Verified License
License #
TGC134819
Status
Active
City
City Of Chicago
Type
General Contractor (Class A)
BuildZoom verified this license was active as of July 2026.
Verify this license's status for Dial One Midwest Mechanical Service at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
License #
ECC94030
Status
Active
City
City Of Chicago
Type
Electrical Contractor (General)
BuildZoom verified this license was active as of July 2026.
Verify this license's status for Dial One Midwest Mechanical Service at the City of Chicago Data Portal.
This is a sample of licensing data; click here to access a complete history.
Verified License
License #
CR0002977
Status
Active
County
Dupage County
Type
General Contractor W/Trades, Other Hvac
BuildZoom verified this license was active as of July 2026.
Verify this license's status for Dial One Midwest Mechanical Service at the County of Dupage Contractor Registration Information.
This is a sample of licensing data; click here to access a complete history.
Verified License
Status
Active
County
Cook County
Type
Hvac
Date Issued
01-28-2026
BuildZoom verified this license was active as of July 2026.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
License #
CL-3520
Status
Active
Town
Bartlett
Type
{U'license Type': U'heating/Air Conditioning'}
When BuildZoom last verified this license, it had an expiration date of December, 2024. Check the current license status of Dial One Midwest Mechanical Service with the Contractors Licensed in Bartlett
This is a sample of licensing data; click here to access a complete history.
License Not Verified
License #
07-00007936
Status
Active
City
Aurora
Type
Electrical Contractor License
When BuildZoom last verified this license, it had an expiration date of December, 2012. Check the current license status of Dial One Midwest Mechanical Service with the The City of Aurora, IL
This is a sample of licensing data; click here to access a complete history.
License Not Verified
License #
08-00001955
Status
Active
City
Aurora
Type
Heating Contractor
When BuildZoom last verified this license, it had an expiration date of December, 2012. Check the current license status of Dial One Midwest Mechanical Service with the The City of Aurora, IL
This is a sample of licensing data; click here to access a complete history.
License Not Verified
License #
14-00029007
Status
Active
City
Aurora
Type
Heating Contractor
When BuildZoom last verified this license, it had an expiration date of September, 2016. Check the current license status of Dial One Midwest Mechanical Service with the The City of Aurora, IL
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
CON-009158-2026
Status
Inactive
Town
Palatine
Type
Mechanical/Hvac Contractor Registration
Class
Mechanical/HVAC
According to the Village of Palatine Registered Contractors, 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 Dial One Midwest Mechanical Service at the Village of Palatine Registered Contractors.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
25LICC-0105
Status
Inactive
City
Evanston
Type
Gc Commercial
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. If this is your business, please update your license status.
Check this license's status for Dial One Midwest Mechanical Service at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
ECC94030
Status
Inactive
City
Evanston
Type
Electrical
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. If this is your business, please update your license status.
Check this license's status for Dial One Midwest Mechanical Service at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
09LICH-0361
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. If this is your business, please update your license status.
Check this license's status for Dial One Midwest Mechanical Service at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
CL-24-25626
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. If this is your business, please update your license status.
Check this license's status for Dial One Midwest Mechanical Service 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
County
Cook County
Type
Electrical
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. 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
License #
09LICH-0361
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. If this is your business, please update your license status.
Check this license's status for Dial One Midwest Mechanical Service at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
ECC94030
Status
Inactive
City
Evanston
Type
Electrical
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. If this is your business, please update your license status.
Check this license's status for Dial One Midwest Mechanical Service at the City of Evanston Building and Inspection Services.
This is a sample of licensing data; click here to access a complete history.
Inactive License
License #
CL-22-25626
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. If this is your business, please update your license status.
Check this license's status for Dial One Midwest Mechanical Service 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
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. If this is your business, please update your license status.
This is a sample of licensing data; click here to access a complete history.