COMPANY RECORD · DETROIT, MI
Denny's Heating Cooling & Refrigeration — permit history in Detroit, MI
Denny's Heating Cooling & Refrigeration appears on 108 Detroit permit records from 2020 through 2026, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 108 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2020 | 10 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 57 |
| 2024 | 14 |
| 2025 | 13 |
| 2026 | 3 |
Busiest year on record: 2023, with 57 permits. One project can account for several filings, so read this as filing activity rather than workload.
Where they worked
| Address in source | Most recent permit |
|---|---|
| 234 Piquette St | 2026-08-24 |
| 1528 Woodward Ave | 2026-04-09 |
| 3439 Woodward Ave | 2026-01-16 |
| 14901 Kercheval St | 2025-11-20 |
| 7303 W Seven Mile | 2025-11-12 |
| 9301 Kercheval St | 2025-08-22 |
| 2900 E Grand Blvd | 2025-07-10 |
| 1545 Woodward Ave | 2025-04-11 |
| 3740 2nd Ave | 2025-04-02 |
| 3031 Porter St | 2025-02-27 |
| 1700 MT ELLIOTT | 2024-11-21 |
| 577 E Larned St | 2024-09-26 |
| 9101 E Jefferson Ave | 2024-04-23 |
| 1456 Woodward Ave | 2024-04-17 |
37 distinct addresses on record; the 14 most recent are shown. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
108 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| MEC2026-03816 | 2026-08-24 | Mechanical / HVAC | 234 Piquette St | Install new commercial HVAC equipment, ductwork, piping, and associated mechanical systems. | |
| MEC2026-01699 | 2026-04-09 | Mechanical / HVAC | 1528 Woodward Ave | Relocate existing water source heat pumps. Install a new water source heat pump. Duct motification and new duct for heat pump. Kitchen hood, MUA and exhaust | |
| MEC2026-00266 | 2026-01-16 | Mechanical / HVAC | 3439 Woodward Ave | install self contained rtu/ac with related duct and VAV boxes, gas piping and exhaust fans | |
| MEC2025-07203 | 2025-11-20 | Mechanical / HVAC | 14901 Kercheval St | Install the kitchen hood and Exhaust Fan, install 2 Roof top units and 7 furnace/ AC and 1 mini split | |
| MEC2025-07079 | 2025-11-12 | Mechanical / HVAC | 7303 W Seven Mile | Install HVAC equipment , controls, insulation, fire dampers | |
| MEC2025-05631 | 2025-08-22 | Mechanical / HVAC | 9301 Kercheval St | HVAC Install | |
| MEC2025-05189 | 2025-07-28 | Mechanical / HVAC | 3439 Woodward Ave | Install self contained RTU/AC Already have a permit but need to add smoke detectors | |
| MEC2025-05017 | 2025-07-17 | Mechanical / HVAC | 3439 Woodward Ave | Install RTU, ERV , Ductwork, VAV and controls | |
| MEC2025-04875 | 2025-07-10 | Mechanical / HVAC | 2900 E Grand Blvd | Install of (8) RTU with ducts. (1) Furnace & AC split with duct. (1) ERV (2) Exhaust Fans. | |
| MEC2025-04417 | 2025-06-17 | Mechanical / HVAC | 7303 W Seven Mile | HVAC demolition including boiler complete, ductwork, ACR piping, condensate piping, install HVAC equipment provided by Owner, HVAC insulation, stand-alone controls, fire damper, CT | |
| MEC2025-04217 | 2025-06-05 | Mechanical / HVAC | 3439 Woodward Ave | Install Self Contained RTU/AC with Related Duct and VAV Boxes, Gas Piping, 2 Exhaust Fans | |
| MEC2025-02752 | 2025-04-11 | Mechanical / HVAC | 1545 Woodward Ave | Installing 6 Furnace/ AC systems DOAS Packaged Unit with Duct Work Gas Piping System with gas pressure test Condensate Pipe System | |
| MEC2025-02471 | 2025-04-02 | Mechanical / HVAC | 3740 2nd Ave | Provide plus/minus 40' of 22"x20" duct with 1" liner or 1.5" wrap insulation from the first floor ceiling space to above the roof. The bottom of the duct will be capped. Provide | |
| MEC2025-02340 | 2025-03-27 | Mechanical / HVAC | 1545 Woodward Ave | Duct Alteration | |
| MEC2025-02288 | 2025-03-26 | Mechanical / HVAC | 9301 Kercheval St | Install Packaged RTU with Duct Distribution, Gas Pipe, Smoke Detector and Exhaust Fan | |
| MEC2025-01478 | 2025-02-27 | Mechanical / HVAC | 3031 Porter St | Provide and install 8 radiant heaters for outdoor spot heating. | |
| MEC2024-06634 | 2024-11-21 | Mechanical / HVAC | 1700 MT ELLIOTT | Installing 4) RTUS w/ductwork, 2) Furnaces/AC w/ductwork, Minisplit, Toilet Fans (4) and Gas Piping System. | |
| MEC2024-05420 | 2024-09-26 | Mechanical / HVAC | 577 E Larned St | -Relocate supply & return air registers -Provide new supply & return air registers -Provide new in-line EXF ducted to outside -Air balance (for systems affected by renovations) | |
| MEC2024-03368 | 2024-06-19 | Mechanical / HVAC | 9301 Kercheval St | Installed Packaged RTU with Cooling, Duct Distribution, Gas Piping/Pressure Test, Toilet Fans and Smoke Detector. | |
| MEC2024-03361 | 2024-06-19 | Mechanical / HVAC | 9301 Kercheval St | Install 6-Ton packaged unit with Cooling, Duct Distribution, Gas Pipe/Pressure Test, Toilet Fan and Smoke Detector. | |
| MEC2024-02126 | 2024-04-23 | Mechanical / HVAC | 9101 E Jefferson Ave | Add on to MEC2023-04263 (4 RTUS). 4) Self Contained Refrigeration, 4) Duct Distribution, 2) Exhaust Fans and 3) Smoke Detectors. Gas piping. | |
| MEC2024-02075 | 2024-04-19 | Mechanical / HVAC | 9101 E Jefferson Ave | Installed Rooftop unit with cooling and duct distribution | |
| MEC2024-01991 | 2024-04-17 | Mechanical / HVAC | 1456 Woodward Ave | Installed Walk in Cooler | |
| MEC2024-01786 | 2024-04-04 | Mechanical / HVAC | 9301 Kercheval St | Add 1 Exhaust Fan | |
| MEC2024-01754 | 2024-04-03 | Mechanical / HVAC | 9301 Kercheval St | STE 3 FEES PAID UNDER ORIGINAL PERMIT MEC2023-01907. SEPARATING FROM ORIGINAL PERMIT | |
| MEC2024-01753 | 2024-04-03 | Mechanical / HVAC | 9301 Kercheval St | STE 3 FEES PAID UNDER ORIGINAL PERMIT MEC2023-01907. SEPARATING FROM ORIGINAL PERMIT | |
| MEC2024-01761 | 2024-04-03 | Mechanical / HVAC | 9301 Kercheval St | Add 2 exhaust fans | |
| MEC2024-01719 | 2024-04-02 | Mechanical / HVAC | 9301 Kercheval St | Adding missing refrigeration permit to attach to MEC2023-01907 | |
| MEC2024-01281 | 2024-03-12 | Mechanical / HVAC | 9301 Kercheval St | Install Exhaust Fan | |
| MEC2024-01245 | 2024-03-11 | Mechanical / HVAC | 12101 Mack Ave | Installing 2) Waste Oil Fired furnaces, 2 Duct Distribution systems, 7 exhaust fans and AC System with remote refrigeration. | |
| MEC2023-05850 | 2023-11-29 | Mechanical / HVAC | 1265 Parkview St | Reference Permit MEC2023-02926 | |
| MEC2023-05700 | 2023-11-16 | Mechanical / HVAC | 9301 Kercheval St | Installed 2 Smoke Detectors | |
| MEC2023-05704 | 2023-11-16 | Mechanical / HVAC | 9301 Kercheval St | 2) Roof Top Units with Self Contained Refrigeration, 2) Duct Distribution and 2) Smoke Detectors | |
| MEC2023-05699 | 2023-11-16 | Mechanical / HVAC | 2220 24th St | Replace 9 Radiant Tube Heaters and 4 High Intensity Radiant Unit Heaters. Reconnect gas piping and replace old gas pipe as needed. | |
| MEC2023-05337 | 2023-11-03 | Mechanical / HVAC | 9301 Kercheval St | 2 Refrigeration systems missed on original permit MEC2023-02591 | |
| MEC2023-04906 | 2023-10-12 | Mechanical / HVAC | 1411 15th St | AKA 1402 14th Street - Trojan Cement Rooftop, Exhaust Fans and Radiant Heaters | |
| MEC2023-04263 | 2023-08-31 | Mechanical / HVAC | 9101 E Jefferson Ave | Install 5) Packaged Rooftop Units | |
| MEC2023-04091 | 2023-08-21 | Mechanical / HVAC | 17231 Moran St | Install 2 Radiant Infra-red heaters, 2 Bathroom Exhaust Fans and 1) Ducted Mini Split and 2) Inline exhaust fans | |
| MEC2023-03987 | 2023-08-14 | Mechanical / HVAC | 3439 Woodward Ave | Install 4) Ducted Minisplits and 3) Exhaust fans | |
| MEC2023-02926 | 2023-06-22 | Mechanical / HVAC | 1265 Parkview St | 3) Packaged Combination HVAC Units with ductwork | |
| MEC2023-02642 | 2023-06-08 | Mechanical / HVAC | 3439 Woodward Ave | Cooking Hoods, Rooftops, Makeup Air Unit, Exhaust fans with related ductwork and gas pipe. | |
| MEC2023-02591 | 2023-06-07 | Mechanical / HVAC | 9301 Kercheval St | 2) Rooftops and 2) Exhaust fans | |
| MEC2023-01907 | 2023-04-21 | Mechanical / HVAC | 9301 Kercheval St | Heating/Cooling Units and Ductwork. This permit has been separated (MEC2024-01753 & 01754) | |
| MEC2023-00709 | 2023-02-10 | Mechanical / HVAC | 1401 Vermont St | Install two furnaces/remote refrigeration systems with distribution system and gas piping | |
| MEC2023-00506 | 2023-02-01 | Mechanical / HVAC | 1652 BAGLEY | Original permit pulled for 22 remote refrig & 22 installation. Will be separating permits to 1650 BLD A units 1-8. 1652 BLD B units 17-19 1640 BLD A units 9-16 1642 BLD B 20-22 | |
| MEC2023-00521 | 2023-02-01 | Mechanical / HVAC | 1640 Bagley St | Original permit pulled for 22 remote refrig & 22 installation. Will be separating permits to 1650 BLD A units 1-8. 1652 BLD B units 17-19 1640 BLD A units 9-16 1642 BLD B 20-22 | |
| MEC2023-00490 | 2023-02-01 | Mechanical / HVAC | 1650 Bagley St | Original permit pulled for 22 remote refrig & 22 installation. Will be separating permits to 1650 BLD A units 1-8. 1652 BLD B units 17-19 1640 BLD A units 9-16 1642 BLD B 20-22 | |
| MEC2023-00492 | 2023-02-01 | Mechanical / HVAC | 1650 Bagley St | Original permit pulled for 22 remote refrig & 22 installation. Will be separating permits to 1650 BLD A units 1-8. 1652 BLD B units 17-19 1640 BLD A units 9-16 1642 BLD B 20-22 | |
| MEC2023-00509 | 2023-02-01 | Mechanical / HVAC | 1650 Bagley St | Original permit pulled for 22 remote refrig & 22 installation. Will be separating permits to 1650 BLD A units 1-8. 1652 BLD B units 17-19 1640 BLD A units 9-16 1642 BLD B 20-22 | |
| MEC2023-00495 | 2023-02-01 | Mechanical / HVAC | 1640 Bagley St | Original permit pulled for 22 remote refrig & 22 installation. Will be separating permits to 1650 BLD A units 1-8. 1652 BLD B units 17-19 1640 BLD A units 9-16 1642 BLD B 20-22 |
Fields appear as the issuing authority published them, including spelling and blanks. Scope text is the applicant's description of intended work, not an inspection finding.
Source and limits
Public Detroit permit records through 2026, counted by distinct permit number. This is a historical filing record: it cannot show current backlog, pricing, crew availability, licensing or insurance, and a quiet period may only mean work was filed elsewhere. Confirm anything commercial with the company and with the issuing authority before acting. How we build these records, and what we withhold →