COMPANY RECORD · SEATTLE, WA
Unisystems — permit history in Seattle, WA
Unisystems appears on 107 Seattle permit records from 2017 through 2026, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 107 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2017 | 3 |
| 2018 | 16 |
| 2019 | 12 |
| 2020 | 9 |
| 2021 | 33 |
| 2022 | 4 |
| 2023 | 17 |
| 2024 | 4 |
| 2025 | 7 |
| 2026 | 2 |
Busiest year on record: 2021, with 33 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 |
|---|---|
| 5634 2ND AVE NW | 2026-07-20 |
| 704 N 104TH ST | 2025-11-24 |
| 11201 LAKE RIDGE DR S | 2025-09-02 |
| 5007 47TH AVE S | 2025-05-12 |
| 8420 47TH AVE S | 2025-02-25 |
| 1700 L N 122ND ST | 2024-03-14 |
| 1864 24TH AVE E | 2024-01-17 |
| 3711 A S ANGELINE ST | 2023-12-29 |
| 3533 S BENNETT ST | 2023-11-21 |
| 2049 NW 61ST ST | 2023-10-10 |
| 13521 37TH AVE NE | 2023-09-13 |
| 2529 8TH AVE W | 2023-04-04 |
| 7552 1ST AVE NE | 2023-02-28 |
| 8647 ISLAND DR S | 2023-02-24 |
68 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $18,800, median $2,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
107 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 7153752-FR | 2026-07-20 | Mechanical / HVAC | 5634 2ND AVE NW | Replace existing furnace | $5,000 |
| 7148287-RF | 2026-06-16 | Mechanical / HVAC | 5634 2ND AVE NW | Replacing existing furnace and installing new heat pump | $7,000 |
| 7118041-RF | 2025-11-24 | Mechanical / HVAC | 704 N 104TH ST | Installing one outdoor heatpump and one indoor head | $6,000 |
| 7118042-FR | 2025-11-24 | Mechanical / HVAC | 704 N 104TH ST | Installing one heat pump and one indoor head (separate refrigeration permit pulled) | $7,000 |
| 7104438-RF | 2025-09-02 | Mechanical / HVAC | 11201 LAKE RIDGE DR S | Installing 4 minisplit heads and 1 outdoor heat pump | $7,500 |
| 7104439-FR | 2025-09-02 | Mechanical / HVAC | 11201 LAKE RIDGE DR S | Installing 4 minisplit heads and 1 outdoor hp Heat pump (refrigeration permit submitted for hp). | $7,500 |
| 7085183-FR | 2025-05-12 | Mechanical / HVAC | 5007 47TH AVE S | Installing three ductless heat pumps (1 per unit) and a total of 11 indoor heads. | $7,000 |
| 7085193-RF | 2025-05-12 | Mechanical / HVAC | 5007 47TH AVE S | Installing 3 outdoor ductless heat pumps (1 per unit) and a total of 11 indoor heads. | $7,000 |
| 7072010-FR | 2025-02-25 | Mechanical / HVAC | 8420 47TH AVE S | Replacing furnace and installing 2 bathroom fans | $3,000 |
| 7014492-RF | 2024-03-14 | Mechanical / HVAC | 1700 L N 122ND ST | Installing an outdoor air conditioner and high efficiency furnace | $6,000 |
| 7014495-FR | 2024-03-14 | Mechanical / HVAC | 1700 L N 122ND ST | installing outdoor 3.5 ton AC (refrigeration permit pulled separately) and high efficiency furnace. | $6,000 |
| 7004747-FR | 2024-01-17 | Mechanical / HVAC | 1864 24TH AVE E | Replacing existing 3 ton furnace | $2,000 |
| 7004743-RF | 2024-01-17 | Mechanical / HVAC | 1864 24TH AVE E | Installing 3 ton outdoor Air Conditioner | $3,000 |
| 7002652-RF | 2023-12-29 | Mechanical / HVAC | 3711 A S ANGELINE ST | Installing 3 indoor minisplit heads and 1 outdoor heat pump | $4,500 |
| 6997285-FR | 2023-11-21 | Mechanical / HVAC | 3533 S BENNETT ST | Installing minisplit system (1 ourdoor HP, 4 indoor heads). | $6,000 |
| 6997289-RF | 2023-11-21 | Mechanical / HVAC | 3533 S BENNETT ST | Installing minisplit system (2 outdoor HPs, 4 indoor heads) | $6,000 |
| 6990200-FR | 2023-10-10 | Mechanical / HVAC | 2049 NW 61ST ST | Installing 3 indoor minisplit heads. | $6,000 |
| 6990386-RF | 2023-10-10 | Mechanical / HVAC | 2049 NW 61ST ST | installing minisplit system with 3 indoor heads (furnace permit #6990200-FR). | $6,000 |
| 6985693-FR | 2023-09-13 | Mechanical / HVAC | 13521 37TH AVE NE | 5 indoor minisplit heads(four-9k, one-18k heads) 2 outdoor ductless hp( one -36k and one 24k) | $8,000 |
| 6984688-RF | 2023-09-07 | Mechanical / HVAC | 13521 37TH AVE NE | 5 indoor mini split heads(four-9k, one-18k heads) 2 outdoor ductless hp( one -36k and one 24k) | $8,000 |
| 6956857-RF | 2023-04-04 | Mechanical / HVAC | 2529 8TH AVE W | Installing 2 ton AC | $4,000 |
| 6950261-RF | 2023-02-28 | Mechanical / HVAC | 7552 1ST AVE NE | Installing a 3 ton air conditioner | $5,000 |
| 6949719-FR | 2023-02-24 | Mechanical / HVAC | 8647 ISLAND DR S | Install (4) bathroom fans/vents, a laundry vents/fan, and kitchen vent. Install (1) mini-split system with 4 indoor units and 1 outdoor unit. | $3,000 |
| 6949709-RF | 2023-02-23 | Mechanical / HVAC | 8647 ISLAND DR S | Installing a minisplit system with 4 indoor units and 1 outdoor unit (3 ton). | $9,000 |
| 6947020-RF | 2023-02-09 | Mechanical / HVAC | 2705 E YESLER WAY | Install Min Splits for 2705A and 2705B E Yesler Way. | $2,000 |
| 6947046-RF | 2023-02-09 | Mechanical / HVAC | 2713 E YESLER WAY | Install Mini Splits for units 2713A and 2713B | $2,000 |
| 6947042-RF | 2023-02-09 | Mechanical / HVAC | 2711 E YESLER WAY | Install Mini-Splits for units 2711A and 2711B | $2,000 |
| 6947038-RF | 2023-02-09 | Mechanical / HVAC | 2709 E YESLER WAY | Install Mini Splits in 5 unit townhome. 2709A,B,C,D and E | $5,000 |
| 6947027-RF | 2023-02-09 | Mechanical / HVAC | 2707 E YESLER WAY | Install two Mini Split systems at 2707A and B. | $2,000 |
| 6944515-FR | 2023-01-27 | Mechanical / HVAC | 4760 35TH AVE NE | Installing a minisplit system (2 outdoor units, 6 indoor units). Refrigeration permit already pulled for outdoor units (6939641-RF). | $10,000 |
| 6939641-RF | 2022-12-22 | Mechanical / HVAC | 4760 35TH AVE NE | Installing 6 indoor minisplits and 2 outdoor units. | $10,000 |
| 6923642-FR | 2022-09-21 | Mechanical / HVAC | 3910 25TH AVE S | Install Mini Split System | $5,000 |
| 6923408-RF | 2022-09-20 | Mechanical / HVAC | 3910 25TH AVE S | INSTALL MINI SPLIT SYSTEM | $7,500 |
| 6897346-RF | 2022-05-02 | Mechanical / HVAC | 9689 51ST AVE S | Install AC unit. | $7,500 |
| 6853123-RF | 2021-08-12 | Mechanical / HVAC | 1717 S Shelton ST | Install Mini Split System | $2,000 |
| 6852084-RF | 2021-08-09 | Mechanical / HVAC | 7709 HIGHLAND PARK WAY SW | Install Mini Split System | $2,000 |
| 6852081-RF | 2021-08-09 | Mechanical / HVAC | 7705 HIGHLAND PARK WAY SW | Install Mini Split System | $2,000 |
| 6852083-RF | 2021-08-09 | Mechanical / HVAC | 7707 HIGHLAND PARK WAY SW | Install Mini Split System | $2,000 |
| 6851981-RF | 2021-08-05 | Mechanical / HVAC | 901 SW HOLDEN ST | Install Mini Split System | $2,000 |
| 6851985-RF | 2021-08-05 | Mechanical / HVAC | 903 SW HOLDEN ST | Install Mini Split System | $2,000 |
| 6842375-RF | 2021-06-09 | Mechanical / HVAC | 9458 20th AVE SW | Install Mini Split System | $2,000 |
| 6842380-RF | 2021-06-09 | Mechanical / HVAC | 9464 20th AVE SW | Install Mini Split System | $2,000 |
| 6842379-RF | 2021-06-09 | Mechanical / HVAC | 9462 20th AVE SW | Install Mini Split System | $2,000 |
| 6842378-RF | 2021-06-09 | Mechanical / HVAC | 9460 20th AVE SW | Install Mini Split System | $2,000 |
| 6995169-RF | 2021-06-09 | Mechanical / HVAC | 9454 20th AVE SW | new permit | $2,000 |
| 6842365-RF | 2021-06-09 | Mechanical / HVAC | 9454 20th AVE SW | Install Mini Split System | $2,000 |
| 6842362-RF | 2021-06-09 | Mechanical / HVAC | 9450 20th AVE SW | Install Mini Split System | $2,000 |
| 6842357-RF | 2021-06-09 | Mechanical / HVAC | 9448 20th AVE SW | Install Mini Split System | $2,000 |
| 6842349-RF | 2021-06-08 | Mechanical / HVAC | 9444 20th AVE SW | Install Mini Split System | $2,000 |
| 6842352-RF | 2021-06-08 | Mechanical / HVAC | 9446 20th AVE SW | Install Mini Split System | $2,000 |
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 →