COMPANY RECORD · SEATTLE, WA
Air Systems Engineering — permit history in Seattle, WA
Air Systems Engineering appears on 115 Seattle permit records from 2018 through 2026, most often electrical (52.2% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Electrical | 60 | 52.2% |
| Mechanical / HVAC | 55 | 47.8% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2018 | 5 |
| 2019 | 28 |
| 2020 | 13 |
| 2021 | 11 |
| 2022 | 16 |
| 2023 | 14 |
| 2024 | 14 |
| 2025 | 11 |
| 2026 | 3 |
Busiest year on record: 2019, with 28 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 |
|---|---|
| 4750 25TH AVE NE | 2026-08-13 |
| 104 12TH AVE | 2026-08-05 |
| 714 S KING ST | 2025-08-11 |
| 4030 7TH AVE NE | 2025-05-20 |
| 4112 E MADISON ST | 2025-03-24 |
| 3847 1ST AVE S | 2025-03-14 |
| 3800 S OTHELLO ST | 2025-03-04 |
| 1215 4TH AVE | 2025-02-04 |
| 1629 N 45TH ST | 2024-11-07 |
| 4048 7TH AVE NE | 2024-10-22 |
| 1812 BROADWAY | 2024-10-09 |
| 3425 W MCGRAW ST | 2024-08-19 |
| 300 W REPUBLICAN ST | 2024-06-20 |
| 525 NE Northgate WAY | 2024-05-15 |
56 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $7,500,000, median $5,340. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
115 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 7157986-EL | 2026-08-13 | Electrical | 4750 25TH AVE NE | Disconnect / Reconnect HVAC Unit | |
| 7156669-RF | 2026-08-05 | Mechanical / HVAC | 104 12TH AVE | Add (1) Split System Heat Pump | $1,690 |
| 7141968-EL | 2026-05-07 | Electrical | 104 12TH AVE | Wiring for (1) Thermostat Serving AHU-1 | |
| 7045397-ME | 2025-08-11 | Mechanical / HVAC | 714 S KING ST | Mechanical work for a tenant improvement: Includes Energy Recovery Ventilator, Split System Heat Pump, ductwork, trim, and inulation. | $134,312 |
| 7086926-EL | 2025-05-20 | Electrical | 4030 7TH AVE NE | Install (8) thermostats in support of 7029005-ME; [4/20/26 RN Renewal/Reinstatement fee added] | $5,340 |
| 7078915-RF | 2025-04-04 | Mechanical / HVAC | 714 S KING ST | Tenant Improvement: Adding piping for 2 split system heat pumps per project #7045397-ME | $2,152 |
| 7078930-EL | 2025-04-03 | Electrical | 714 S KING ST | Tenant Improvement: 2 thermostats for project 7045397-ME | $4,379 |
| 7077065-EL | 2025-03-24 | Electrical | 4112 E MADISON ST | Tenant Improvement: wiring to relocate a thermostat for 7060651-ME | $654 |
| 7060651-ME | 2025-03-24 | Mechanical / HVAC | 4112 E MADISON ST | Tenant Improvement: Provide demolition services to remove & recycle ductwork and GRD's as shown on plans; provide and install sheet metal ductwork modifications as shown on plans ( | $28,731 |
| 7075466-RF | 2025-03-14 | Mechanical / HVAC | 3847 1ST AVE S | Tenant Improvement: provide and install (3) 4-ton variable refrigerant flow air handlers to condition storage space | $6,351 |
| 7075471-EL | 2025-03-14 | Electrical | 3847 1ST AVE S | Tenant Improvement: add wiring for (3) new thermostats for the new HVAC fan coils | $1,629 |
| 7073567-EL | 2025-03-04 | Electrical | 3800 S OTHELLO ST | tenant improvement: wiring to relocate 2 thermostats | $510 |
| 7066585-ME | 2025-03-03 | Mechanical / HVAC | 3800 S OTHELLO ST | HVAC Tenant Improvement: Remove grilles, registers and diffuser; replace like for like. Modify duct and install one new exhaust fan. Subject to field inspection, STFI. (Related | $16,000 |
| 7068784-EL | 2025-02-04 | Electrical | 1215 4TH AVE | We be installing 120v to a transformer in our control boxes, 7 total. | $2,668 |
| 7055175-EL | 2024-11-07 | Electrical | 1629 N 45TH ST | Provide wiring for 8 thermostats. The HVAC equipment was permitted with 6967486-CN. | $4,722 |
| 7052464-EL | 2024-10-22 | Electrical | 4048 7TH AVE NE | Replace 2 existing CO/NO2 sensors | $1,145 |
| 7050320-RF | 2024-10-09 | Mechanical / HVAC | 1812 BROADWAY | (3) Split System Heat Pumps | $5,544 |
| 7050313-EL | 2024-10-09 | Electrical | 1812 BROADWAY | (3) New Thermostats | $2,196 |
| 7047388-RF | 2024-09-23 | Mechanical / HVAC | 1215 4TH AVE | Split systems: 3 Outdoor units and 8 Indoor units | $15,598 |
| 7047372-EL | 2024-09-23 | Electrical | 1215 4TH AVE | (10) thermostats for Heat Pumps & Variable Refrigerant Flow Equipment | $8,197 |
| 7041331-RF | 2024-08-19 | Mechanical / HVAC | 3425 W MCGRAW ST | Relocate Trane Ductless Split System Heat Pump mechanical under permit number 7026523-CN | $700 |
| 7041327-EL | 2024-08-16 | Electrical | 3425 W MCGRAW ST | Tenant Improvement: relocate (3) thermostats | $900 |
| 7031434-RF | 2024-06-20 | Mechanical / HVAC | 300 W REPUBLICAN ST | (2) Ductless Split Systems for HVAC | $10,032 |
| 7031449-EL | 2024-06-19 | Electrical | 300 W REPUBLICAN ST | Wiring for HVAC thermostats. 5/20/2025 Renewal requested through Zendesk. | $1,875 |
| 7024911-BP | 2024-05-15 | Mechanical / HVAC | 525 NE Northgate WAY | Remove existing failing boiler (and dispose of at an approved recycling center) Furnish and install new boiler (HELX400FVWHN) | $23,650 |
| 7024881-EL | 2024-05-14 | Electrical | 4000 AURORA AVE N | Wiring to replace 2 HVAC condensing units and 4 fan coils | $1,220 |
| 7024808-RF | 2024-05-13 | Mechanical / HVAC | 4000 AURORA AVE N | Install the Line set for 2 Condensing Units and 4 Air Indoor fan coils | $926 |
| 7086936-RF | 2024-01-25 | Mechanical / HVAC | 4030 7TH AVE NE | Install (8) ductless split systems for 7029005-ME | $7,500,000 |
| 7001354-EL | 2023-12-19 | Electrical | 7930 RAINIER AVE S | (8) "Simple MA" Controllers for new HVAC Equipment | $1,600 |
| 7001343-EL | 2023-12-19 | Electrical | 7930 RAINIER AVE S | (11) "Simple MA" Controllers for new HVAC equipment | $2,200 |
| 6991668-EL | 2023-10-17 | Electrical | 3800 S OTHELLO ST | Tenant Improvement: wiring for HVAC controls in accordance with 6906724-ME | $3,533 |
| 6979810-ME | 2023-09-08 | Mechanical / HVAC | 2008 WESTLAKE AVE | Shell & Core: improve HVAC by adding (1) Energy Recovery Ventilator and (1) Ductless Split System | $19,000 |
| 6983533-EL | 2023-08-30 | Electrical | 2008 WESTLAKE AVE | wiring for (1) new thermostat | $453 |
| 6983538-RF | 2023-08-30 | Mechanical / HVAC | 2008 WESTLAKE AVE | Add (1) VRF Split System (to replace (1) Gas Unit Heater) | $555 |
| 6974192-RF | 2023-07-10 | Mechanical / HVAC | 3257 17TH AVE W | Adding a Split System to the West end of the Shop | $1,114 |
| 6974176-EL | 2023-07-07 | Electrical | 3257 17TH AVE W | Wiring for a split system, humidifier, thermostat, & a humidistat | $3,399 |
| 6974160-EL | 2023-07-07 | Electrical | 5615 WEST MARGINAL WAY SW | Add (2) actuators for intake hood control dampers | $600 |
| 6973187-EL | 2023-06-30 | Electrical | 1707 N 125TH ST | Add a thermostat in support of HVAC work permitted under 6964919-ME | $375 |
| 6964919-ME | 2023-06-30 | Mechanical / HVAC | 1707 N 125th ST | Alterations to mechanical system of existing institutional building, per plan | $28,000 |
| 6973199-RF | 2023-06-30 | Mechanical / HVAC | 1707 N 125TH ST | Adding a ductless split system in accordance with permit 6964919-me | $1,200 |
| 6945830-EL | 2023-02-01 | Electrical | 1128 NW 52ND ST | Relocate (2) thermostats in support of 6927702-ME | $700 |
| 6945521-EL | 2023-01-31 | Electrical | 4744 41ST AVE SW | Replace (28) HVAC Control Sensors / disconnect & reconnect existing Chiller | $16,579 |
| 6928801-EL | 2022-10-19 | Electrical | 901 HIAWATHA PL S | Wiring to Improve Ventilation (in accordance with 6920017-ME) | $750 |
| 6928443-EL | 2022-10-18 | Electrical | 3800 S OTHELLO ST | Wiring for HVAC controls Per 6906724-ME. 10/19/2023 AB: Renewal | $2,700 |
| 6926967-RF | 2022-10-11 | Mechanical / HVAC | 1320 E PINE ST | VRF System per 6884470-M | $146,608 |
| 6926975-EL | 2022-10-10 | Electrical | 1320 E PINE ST | Ventilating the Garage3 9/12/23 SK renewal | $39,656 |
| 6925058-EL | 2022-09-28 | Electrical | 1128 NW 52ND ST | Thermostats for Tenant Improvements | $900 |
| 6925053-RF | 2022-09-28 | Mechanical / HVAC | 1128 NW 52ND ST | 4th Floor Tenant Improvement | $8,081 |
| 6924896-RF | 2022-09-28 | Mechanical / HVAC | 1128 NW 52ND ST | Tenant Improvement on the 3rd floor | $12,122 |
| 6924892-EL | 2022-09-28 | Electrical | 1128 NW 52ND ST | Add 3 Thermostats per 6909867-ME | $1,200 |
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 Seattle 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 →