COMPANY RECORD · DETROIT, MI
Guideline Mechanical, Inc. — permit history in Detroit, MI
Guideline Mechanical, Inc. appears on 65 Detroit permit records from 2019 through 2026, most often plumbing (67.7% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Plumbing | 44 | 67.7% |
| Mechanical / HVAC | 21 | 32.3% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2019 | 3 |
| 2020 | 12 |
| 2021 | 11 |
| 2022 | 13 |
| 2023 | 6 |
| 2025 | 10 |
| 2026 | 10 |
Busiest year on record: 2022, with 13 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 |
|---|---|
| 500 Woodward Ave, Fl 23 | 2026-07-21 |
| 1326 Saint Antoine St | 2026-07-08 |
| 1322 Broadway St | 2026-05-27 |
| 1151 Holden St | 2026-04-23 |
| 1 Cadillac Sq | 2026-04-15 |
| 18445 Cathedral St | 2026-01-13 |
| 2901 Grand River Ave | 2025-12-16 |
| 2500 E Grand Blvd | 2025-09-24 |
| 1001 Woodward Ave | 2025-07-22 |
| 1208 Woodward Ave | 2025-06-09 |
| 2799 W Grand Blvd | 2025-02-27 |
| 555 E Lafayette St | 2023-10-18 |
| 13200 W Outer Dr | 2023-05-15 |
| 1200 Saint Antoine St | 2023-01-05 |
25 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
65 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| PLM2026-02561 | 2026-07-21 | Plumbing | 500 Woodward Ave, Fl 23 | Domestic Water, Sanitary Waste, Plumbing fixtures | |
| MEC2026-03142 | 2026-07-08 | Mechanical / HVAC | 1326 Saint Antoine St | Gas Piping System | |
| PLM2026-02341 | 2026-07-08 | Plumbing | 1326 Saint Antoine St | Fixtures, Floor drains, stacks, water distribution | |
| PLM2026-01802 | 2026-05-27 | Plumbing | 1322 Broadway St | PLUMBING PERMIT RESIDENTIAL AT 1322 BROADWAY | |
| MEC2026-01945 | 2026-04-23 | Mechanical / HVAC | 1151 Holden St | Install gas piping system | |
| PLM2026-01228 | 2026-04-15 | Plumbing | 1 Cadillac Sq | Underground Domestic Water | |
| MEC2026-01783 | 2026-04-15 | Mechanical / HVAC | 1 Cadillac Sq | Underground natural Gas | |
| PLM2026-00512 | 2026-02-12 | Plumbing | 1151 Holden St | Water distribution, 1 sink | |
| PLM2026-00211 | 2026-01-26 | Plumbing | 1151 Holden St | Water distribution, stacks, urinal, sinks, floor drain | |
| MEC2026-00193 | 2026-01-13 | Mechanical / HVAC | 18445 Cathedral St | Temp gas connection ATTACH TO ORIGINAL MECH PERMIT MEC2025-06957 | |
| PLM2025-10589 | 2025-12-16 | Plumbing | 2901 Grand River Ave | Renovate Bar - Dishwasher, sinks, drains, ice machine, water distribution line, water heater, garbage disposals | |
| PLM2025-09884 | 2025-11-05 | Plumbing | 18445 Cathedral St | Fixtures, floor drains, | |
| MEC2025-06957 | 2025-11-05 | Mechanical / HVAC | 18445 Cathedral St | Gas Piping system, Water Heaters | |
| MEC2025-06131 | 2025-09-24 | Mechanical / HVAC | 2500 E Grand Blvd | Gas Pressure Test | |
| PLM2025-08045 | 2025-07-22 | Plumbing | 1001 Woodward Ave | Bathroom Fixtures | |
| MEC2025-04281 | 2025-06-09 | Mechanical / HVAC | 1208 Woodward Ave | Gas piping system, Gas burners | |
| PLM2025-04952 | 2025-04-17 | Plumbing | 1208 Woodward Ave | Plumbing - Fixtures | |
| PLM2025-02680 | 2025-02-27 | Plumbing | 2799 W Grand Blvd | Med gas, install a sink | |
| PLM2025-01856 | 2025-02-11 | Plumbing | 2500 E Grand Blvd | Roof drains, underground storm, aboveground storm, natural gas, | |
| MEC2025-01132 | 2025-02-11 | Mechanical / HVAC | 2500 E Grand Blvd | Gas piping, gas burner | |
| PLM2023-03297 | 2023-10-18 | Plumbing | 555 E Lafayette St | Plumbing remodel | |
| MEC2023-05045 | 2023-10-18 | Mechanical / HVAC | 555 E Lafayette St | Renovation of gas piping system | |
| MEC2023-02266 | 2023-05-15 | Mechanical / HVAC | 13200 W Outer Dr | HEATING | |
| PLM2023-00716 | 2023-04-13 | Plumbing | 2901 Grand River Ave | ||
| MEC2023-01721 | 2023-04-13 | Mechanical / HVAC | 2901 Grand River Ave | ||
| MEC2023-00075 | 2023-01-05 | Mechanical / HVAC | 1200 Saint Antoine St | HTG | |
| MEC2022-06022 | 2022-12-21 | Mechanical / HVAC | 2764 GRAND | Gas Burners | |
| PLM2022-01421 | 2022-07-06 | Plumbing | 555 E Lafayette St | Plumbing | |
| PLM2022-01238 | 2022-06-10 | Plumbing | 1501 Church St | Plumbing | |
| PLM2022-00793 | 2022-04-28 | Plumbing | 1151 Holden St | ||
| MEC2022-01931 | 2022-04-28 | Mechanical / HVAC | 1151 Holden St | ||
| PLM2022-00752 | 2022-04-26 | Plumbing | 2901 Grand River Ave | Plumbing | |
| PLM2022-00394 | 2022-03-08 | Plumbing | 611 Woodward Ave | ||
| MEC2022-00541 | 2022-02-01 | Mechanical / HVAC | 1250 Library St | ||
| PLM2022-00103 | 2022-01-18 | Plumbing | 2500 E Grand Blvd | BARREL STORAGE BLDG PERMIT# BLD2021-00220 | |
| PLM2022-00107 | 2022-01-18 | Plumbing | 2500 E Grand Blvd | 534 BLDG PERMIT #BLD2021-06724 | |
| PLM2022-00104 | 2022-01-18 | Plumbing | 2500 E Grand Blvd | BODY / GEN / HIGH BAY / ASRS & BATTERY | |
| PLM2022-00106 | 2022-01-18 | Plumbing | 2500 E Grand Blvd | 444 BLDG PERMIT #BLD2021-02502 | |
| PLM2022-00105 | 2022-01-18 | Plumbing | 2500 E Grand Blvd | ADMIN BLDG PERMIT # BLD2021-01551 | |
| PLM2021-01626 | 2021-08-20 | Plumbing | 2901 Grand River Ave | Plumbing | |
| PLM2021-01363 | 2021-07-19 | Plumbing | 1526 Broadway St | ||
| MEC2021-03266 | 2021-07-19 | Mechanical / HVAC | 1526 Broadway St | ||
| PLM2021-01350 | 2021-07-16 | Plumbing | 2799 W Grand Blvd | ||
| PLM2021-01352 | 2021-07-16 | Plumbing | 1750 Porter St | ||
| PLM2021-01176 | 2021-06-22 | Plumbing | 2500 E Grand Blvd | ||
| PLM2021-01075 | 2021-06-07 | Plumbing | 2901 Grand River Ave | BROOKLYN GARAGE | |
| PLM2021-00995 | 2021-05-26 | Plumbing | 1200 Saint Antoine St | ||
| MEC2021-01872 | 2021-04-26 | Mechanical / HVAC | 1225 Woodward Ave | ||
| PLM2021-00734 | 2021-04-26 | Plumbing | 1225 Woodward Ave | ||
| PLM2021-00018 | 2021-01-06 | Plumbing | 2764 GRAND |
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 →
