COMPANY RECORD · SEATTLE, WA
Hermanson Company — permit history in Seattle, WA
Hermanson Company appears on 1,137 Seattle permit records from 2015 through 2026, most often mechanical / hvac (75.5% of the record).
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 859 | 75.5% |
| Electrical | 278 | 24.5% |
2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.
Activity by year
| Year | Permits issued |
|---|---|
| 2015 | 85 |
| 2016 | 106 |
| 2017 | 153 |
| 2018 | 101 |
| 2019 | 177 |
| 2020 | 84 |
| 2021 | 128 |
| 2022 | 85 |
| 2023 | 90 |
| 2024 | 78 |
| 2025 | 42 |
| 2026 | 8 |
Busiest year on record: 2019, with 177 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 |
|---|---|
| 4746 OHIO AVE S | 2026-06-12 |
| 2405 7TH AVE | 2026-06-11 |
| 5900 4TH AVE S | 2026-06-03 |
| 2200 5TH AVE | 2026-05-19 |
| 500 BOREN AVE N | 2026-04-01 |
| 4800 37TH AVE SW | 2026-03-31 |
| 2334 ELLIOTT AVE | 2026-02-11 |
| 1600 2ND AVE | 2025-11-03 |
| 601 UNION ST | 2025-10-20 |
| 1427 S MAIN ST | 2025-10-08 |
| 1819 23RD AVE | 2025-09-23 |
| 4319 STONE WAY N | 2025-08-28 |
| 616 BATTERY ST | 2025-07-21 |
| 600 UNIVERSITY ST | 2025-06-27 |
383 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $7,500,000, median $9,288. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
1,137 permits; open the 50 most recent
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 7147353-BP | 2026-06-12 | Mechanical / HVAC | 4746 OHIO AVE S | Install (1) boiler. | $10,000 |
| 7144507-BP | 2026-06-11 | Mechanical / HVAC | 2405 7TH AVE | Install (1) electric boiler. | $33,000 |
| 7144511-BP | 2026-06-11 | Mechanical / HVAC | 2405 7TH AVE | Install (1) electric boiler. | $33,000 |
| 7146052-RF | 2026-06-03 | Mechanical / HVAC | 5900 4TH AVE S | Refrigeration piping for (1) 2-ton split system and (3) wall mounted indoor heads. | $25,000 |
| 7142504-BP | 2026-05-19 | Mechanical / HVAC | 2200 5TH AVE | Replace (1) boiler. Future decarbonization plan required before final inspection. | $2,500 |
| 7104925-ME | 2026-04-01 | Mechanical / HVAC | 500 BOREN AVE N | Interior remodel of a 5-story office building, Existing fan-powered terminal units with electric heat to be replaced with new fan-powered terminal units with electric heat. New low | $5,000,000 |
| 7135806-RF | 2026-03-31 | Mechanical / HVAC | 4800 37TH AVE SW | Refrigeration piping to (2) outdoor units and (3) indoor units. | $15,000 |
| 7127212-BP | 2026-02-11 | Mechanical / HVAC | 2334 ELLIOTT AVE | Replace (1) boiler. Future decarbonization plan required before final inspection. | $15,000 |
| 7114118-BP | 2025-11-03 | Mechanical / HVAC | 1600 2ND AVE | Replace (1) expansion tank. | $2,000 |
| 7112635-EL | 2025-10-20 | Electrical | 601 UNION ST | Install (1) new t-stat. | $1,500 |
| 7112630-EL | 2025-10-20 | Electrical | 601 UNION ST | Install (3) new t-stats. Relocate (2) t-stats. | $5,000 |
| 7110695-RF | 2025-10-08 | Mechanical / HVAC | 1427 S MAIN ST | Refrigeration piping to (1) 4-ton multi-split heat pump and (1) 22-ton VRF heat pump. | $5,000 |
| 7108930-RF | 2025-09-29 | Mechanical / HVAC | 4800 37TH AVE SW | Install Refrigeration lines to (4) coils and (1) outdoor unit. | $3,500 |
| 7107411-BP | 2025-09-23 | Mechanical / HVAC | 1819 23RD AVE | Install (1) heat exchanger. | $2,500 |
| 7107710-EL | 2025-09-19 | Electrical | 1427 S MAIN ST | Run low volt wiring between Condensing unit and all Fan coil units and t-stats. Install (11) t-stats. | $5,000 |
| 7104114-EL | 2025-08-28 | Electrical | 4319 STONE WAY N | Relocate (2) existing t-stats and rewiring to accommodate. | $1,700 |
| 7097072-RF | 2025-07-21 | Mechanical / HVAC | 616 BATTERY ST | refrigeration piping for (10) 1.5 Ton, (3) 1 Ton. P3, L2, L3, L4 | $60,398 |
| 7093554-EL | 2025-06-27 | Electrical | 600 UNIVERSITY ST | Relocate (5) t-stats | $2,500 |
| 7081093-ME | 2025-06-18 | Mechanical / HVAC | 1301 2ND AVE | Installation of (1) fan coil unit, (1) duct heater, (1) outside air fan, and associated duct and pipe. Relocation of (1) existing VAV. | $70,000 |
| 7091411-EL | 2025-06-16 | Electrical | 1531 13TH AVE S | Install (2) new branch circuits to utility shed. | $1,500 |
| 7089857-RF | 2025-06-09 | Mechanical / HVAC | 900 RAINIER AVE S | Refrigeration piping to (2) 5-ton units. | $1,500 |
| 7087211-RF | 2025-05-22 | Mechanical / HVAC | 1427 S MAIN ST | Refrigeration lines for (3) 3/4-ton outdoor units, (1) 2-ton outdoor unit, (1) 1.5-ton outdoor unit, (4) 3/4-ton indoor units, (1) 1/2-ton indoor unit, and (2) 1-ton indoor units. | $25,000 |
| 7086761-EL | 2025-05-19 | Electrical | 1427 S MAIN ST | Install (14) t-stats | $5,000 |
| 7085463-RF | 2025-05-13 | Mechanical / HVAC | 4800 SAND POINT WAY NE | Refrigeration piping to (1) 2-ton condensing unit. | $3,890 |
| 7084905-RF | 2025-05-12 | Mechanical / HVAC | 900 UNIVERSITY ST | Install refrigeration piping for (1) 16-ton condensing unit, (1) 12-ton condensing unit, and (1) 6-ton condensing unit. | $262,131 |
| 7084166-EL | 2025-05-06 | Electrical | 1007 STEWART ST | Relocate (4) existing t-stats. | $1,000 |
| 7083285-BP | 2025-05-01 | Mechanical / HVAC | 1100 UNIVERSITY ST | Replace (1) Expansion Tank | $10,000 |
| 7083001-RF | 2025-04-29 | Mechanical / HVAC | 3130 ALASKAN WAY | Refrigerant line for (2) 3-ton condensing units. | $15,000 |
| 7083008-EL | 2025-04-29 | Electrical | 3130 ALASKAN WAY | Provide and install (3) new t-stats. | $10,000 |
| 7079750-EL | 2025-04-08 | Electrical | 2301 5TH AVE | Relocate (4) existing thermostats. | $1,500 |
| 7079252-RF | 2025-04-04 | Mechanical / HVAC | 4800 37TH AVE SW | Refrigeration lines for (5) indoor condensing units. HP-1 - 17 tons - QTY 2 12.5HP Compressors HP-2 - 12 tons - QTY 2 7.5HP Compressors HP-3 - 12 tons - QTY 2 7.5HP Compressors | $250,000 |
| 7078644-RF | 2025-04-04 | Mechanical / HVAC | 5030 1ST AVE S | Refrigeration line for (1) CRAC unit. | $1,500 |
| 7078640-EL | 2025-04-02 | Electrical | 5030 1ST AVE S | Provide and install (1) t-stat. | $1,000 |
| 7077013-RF | 2025-03-25 | Mechanical / HVAC | 5930 4TH AVE S | Refrigeration lines running from indoor to outdoor VRF system. | $1,500 |
| 7076362-EL | 2025-03-19 | Electrical | 1280 HARRISON ST | Disconnect and reconnect of (1) outdoor condensing unit, (2) ceiling mounted four way cassettes, (2) wall hung cassettes. | $1,500 |
| 7072201-BP | 2025-03-12 | Mechanical / HVAC | 2801 WESTERN AVE | Provide and install (1) boiler - Model No. CFN652PM. Decarbonization plan not required. | $13,000 |
| 7074939-RF | 2025-03-12 | Mechanical / HVAC | 1221 1ST AVE | Refrigeration line for (1) split system. | $1,500 |
| 7072204-BP | 2025-03-12 | Mechanical / HVAC | 2801 WESTERN AVE | Provide and install (1) boiler - Model No. CFN652PM. Decarbonization plan not required. | $13,000 |
| 7073038-RF | 2025-03-03 | Mechanical / HVAC | 1711 S JACKSON ST | Refrigeration lines for split system and VRF system. | $30,000 |
| 7073182-EL | 2025-03-03 | Electrical | 2600 S HOLGATE ST | Disconnect and reconnect (2) outdoor units. | $17,500 |
| 7073041-EL | 2025-02-28 | Electrical | 1711 S JACKSON ST | Install (1) new t-stat. | $1,000 |
| 7071831-FR | 2025-02-27 | Mechanical / HVAC | 6210 LINDEN AVE N | Installation of new 20,000 heat pump system. Work completed and inspected under Refrigeration Permit number 6884079-RF. New Furnace Permit Application to be submitted to close out | $4,500 |
| 7071234-RF | 2025-02-19 | Mechanical / HVAC | 1445 S HENDERSON ST | Refrigeration piping for (24) wall mounted AC's and (2) supporting CU's. | $75,000 |
| 7071228-EL | 2025-02-19 | Electrical | 1445 S HENDERSON ST | Provide and install (6) new t-stats. | $7,500 |
| 7032255-ME | 2025-01-22 | Mechanical / HVAC | 1301 2ND AVE | Addition of 4 Fan Coil Units, Rezoning of 60 VAV boxes, demo 8 units VAV boxes, and add of 2 VAVs. Re-use of 2 exhaust fans. LV by controls contractor | $900,000 |
| 7065201-BP | 2025-01-21 | Mechanical / HVAC | 400 SPRING ST | Replacement of Kitchen Hot Water Storage Tank | $26,277 |
| 7063800-RF | 2025-01-08 | Mechanical / HVAC | 900 RAINIER AVE S | Provide and install refrigeration piping for (1) indoor heat pump and (1) outdoor heat pump. | $1,200 |
| 7063804-EL | 2025-01-07 | Electrical | 1280 HARRISON ST | Provide and install (3) t-stats. | $500 |
| 7063791-EL | 2025-01-07 | Electrical | 900 RAINIER AVE S | Provide and install (1) new t-stat. | $500 |
| 7063291-EL | 2025-01-03 | Electrical | 601 UNION ST | Relocate (14) t-stats | $5,000 |
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 →