COMPANY RECORD · SEATTLE, WA
Energy Efficient Systems LLC — permit history in Seattle, WA
Energy Efficient Systems LLC appears on 41 Seattle permit records from 2018 through 2025, all of them mechanical / hvac.
Permit categories
| Category | Permits | Share |
|---|---|---|
| Mechanical / HVAC | 41 | 100% |
Activity by year
| Year | Permits issued |
|---|---|
| 2018 | 7 |
| 2019 | 9 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 14 |
| 2023 | 3 |
| 2025 | 2 |
Busiest year on record: 2022, with 14 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 |
|---|---|
| 1142 17TH AVE E | 2025-10-14 |
| 6042 33RD AVE NE | 2025-08-27 |
| 8004 36TH AVE NE | 2023-09-11 |
| 212 31ST AVE | 2023-09-01 |
| 5900 49TH AVE SW | 2023-03-01 |
| 1240 SW ORCHARD ST | 2022-12-20 |
| 4522 SW AUSTIN ST | 2022-12-13 |
| 3201 E REPUBLICAN ST | 2022-11-03 |
| 3831 B 35TH AVE W | 2022-10-05 |
| 3831 C 35TH AVE W | 2022-10-05 |
| 3831 35TH AVE W | 2022-10-05 |
| 7002 BRIGHTON LN S | 2022-08-23 |
| 3027 NW 70TH ST | 2022-08-12 |
| 210 31ST AVE E | 2022-06-24 |
38 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $0 to $106,300, median $12,000. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.
Permits on record
41 permits; open the full list
| Permit | Issued | Category | Address in source | Scope as filed | Declared value |
|---|---|---|---|---|---|
| 7111508-FR | 2025-10-14 | Mechanical / HVAC | 1142 17TH AVE E | Install gas fireplace insert | $6,247 |
| 7103785-FR | 2025-08-27 | Mechanical / HVAC | 6042 33RD AVE NE | Install gas fireplace into residence | $7,672 |
| 6985282-FR | 2023-09-11 | Mechanical / HVAC | 8004 36TH AVE NE | New HVAC system and ducting for remodel | $1 |
| 6983882-FR | 2023-09-01 | Mechanical / HVAC | 212 31ST AVE | install two heat pumps with indoor multizone units | $51,000 |
| 6950509-FR | 2023-03-01 | Mechanical / HVAC | 5900 49TH AVE SW | replace furnace in residence. | $20,800 |
| 6939284-FR | 2022-12-20 | Mechanical / HVAC | 1240 SW ORCHARD ST | Install minisplit into residence | $4,500 |
| 6938229-FR | 2022-12-13 | Mechanical / HVAC | 4522 SW AUSTIN ST | Install gas furnace/air handler with ac coil (ac only heatpump) into crawlspace | $14,333 |
| 6881833-ME | 2022-11-03 | Mechanical / HVAC | 3201 E REPUBLICAN ST | Install hyperheat minisplit heatpumps to thirteen rooms (one office, and twelve rooms originally designed as classrooms) with cooling locked out (HEAT ONLY), per plans. | $106,300 |
| 6926199-FR | 2022-10-05 | Mechanical / HVAC | 3831 B 35TH AVE W | AADU - Install four head minisplit system into residence unit B | $20,000 |
| 6926200-FR | 2022-10-05 | Mechanical / HVAC | 3831 C 35TH AVE W | DADU - Install minisplit into residential unit C | $20,000 |
| 6926198-FR | 2022-10-05 | Mechanical / HVAC | 3831 35TH AVE W | Install residential split system into residence with air handler with wall units | $27,000 |
| 6918216-FR | 2022-08-23 | Mechanical / HVAC | 7002 BRIGHTON LN S | Install multiple head minisplit system into residence (four indoor units) | $14,700 |
| 6916488-FR | 2022-08-12 | Mechanical / HVAC | 3027 NW 70TH ST | Install four head minisplit system into residence | $16,000 |
| 6907217-FR | 2022-06-24 | Mechanical / HVAC | 210 31ST AVE E | Install inverter driven multizone heatpump systems to residential property | $50,715 |
| 6901489-FR | 2022-05-24 | Mechanical / HVAC | 2558 NE 91ST ST | Install (1) multi-head mini-split heat pump system. | $10,000 |
| 6899367-FR | 2022-05-12 | Mechanical / HVAC | 1600 6TH AVE W | Install heat pump with ducted unit and air handler | $26,500 |
| 6893550-FR | 2022-04-13 | Mechanical / HVAC | 9661 RENTON AVE S | Install split system heat pump with air handler and connect to existing ducting | $22,000 |
| 6889181-FR | 2022-03-22 | Mechanical / HVAC | 1912 S STEVENS ST | Install 96 AFUE furnace into upstairs attic and replace 80 AFUE furnace in basement | $11,000 |
| 6882683-FR | 2022-02-14 | Mechanical / HVAC | 5122 45TH AVE NE | Install heatpump with air handler into basement | $18,000 |
| 6857917-FR | 2021-09-13 | Mechanical / HVAC | 5228 S MYRTLE ST | Install minisplit with three heads into home | $9,700 |
| 6854062-FR | 2021-08-18 | Mechanical / HVAC | 2442 4TH AVE W | replace old furnace with new heat pump in crawl space | $3,000 |
| 6829661-FR | 2021-03-23 | Mechanical / HVAC | 820 26TH AVE | Install two systems - one into existing with multiple heads and other into remodel with single head. | $30,000 |
| 6823223-FR | 2021-02-11 | Mechanical / HVAC | 2346 N 60TH ST | Install single outdoor unit with two ceiling cartridge indoor unit heads | $14,700 |
| 6803974-FR | 2020-10-05 | Mechanical / HVAC | 189 26TH AVE | Install single outdoor unit to two ductless heads and one ducted in attic | $12,000 |
| 6801990-FR | 2020-09-23 | Mechanical / HVAC | 2203 31ST AVE S | Install single outdoor unit three zones inverter driven minisplit system (two heads on main floor and ducted minisplit into upstairs attic) - sized to minimum out at 31300 btu out | $12,000 |
| 6760056-FR | 2019-11-25 | Mechanical / HVAC | 1723 MADRONA DR | Install 95 AFUE furnace into home with remodel/addition | $8,000 |
| 6723490-FR | 2019-04-24 | Mechanical / HVAC | 7752 FAIRWAY DR NE | Install (1) gas furnace. | $27,000 |
| 6709738-ME | 2019-04-15 | Mechanical / HVAC | 3201 E REPUBLICAN ST | Install supplemental gas heating units into Multi Use Assembly space (Auditorium and Stage) to reduce energy consumption of oil fuel multizone boiler, will use existing ventilation | $7,000 |
| 6715526-FR | 2019-03-06 | Mechanical / HVAC | 1902 S HORTON ST | Install new heat pump with multiple heads into basement remodel and existing | $11,700 |
| 6712060-FR | 2019-02-11 | Mechanical / HVAC | 4122 SW FRONTENAC ST | Install ducted Mini Split into upstairs and downstairs main rooms | $8,800 |
| 6709295-FR | 2019-01-22 | Mechanical / HVAC | 336 29TH AVE | Relocate existing furnace to alternate locate located at the SW corner of basement with ducting modifications | $13,000 |
| 6707160-ME | 2019-01-22 | Mechanical / HVAC | 117 28TH AVE | Install high efficiency gas furnace (with ducting and exhaust) into complete remodel, per plan. (STFI) SUBJECT TO FIELD INSPECTION (UNIT A ONLY) | $10,000 |
| 6707162-ME | 2019-01-22 | Mechanical / HVAC | 117 28TH AVE | Install high efficiency gas furnace into remodel, per plan. (STFI) SUBJECT TO FIELD INSPECTION (UNIT D ONLY) | $10,000 |
| 6707595-FR | 2019-01-11 | Mechanical / HVAC | 3202 S CHICAGO ST | Replace oil furnace with gas furnace | $5,394 |
| 6698001-FR | 2018-11-08 | Mechanical / HVAC | 6714 9TH AVE NW | Install new high efficiency furnace into remodel | $8,000 |
| 6694379-FR | 2018-10-18 | Mechanical / HVAC | 4923 45th AVE S | Replace existing furnace with new high efficiency 2 stage in remodel | $9,800 |
| 6694380-FR | 2018-10-18 | Mechanical / HVAC | 4216 50TH AVE S | Install mini split into living room and dining area | $4,000 |
| 6684581-FR | 2018-08-21 | Mechanical / HVAC | 307 23RD AVE | Residential Unit 309 (not available in address search): Install new heat pump into addition/remodel for duplex - two systems per unit | $12,000 |
| 6684500-FR | 2018-08-21 | Mechanical / HVAC | 307 23RD AVE | Install new heat pump system into addition/remodel for duplex - one system per duplex unit | $8,000 |
| 6678879-FR | 2018-07-18 | Mechanical / HVAC | 4012 2ND AVE NE | Install new furnaces into remodel Refer to building permit 6599584-CN | $16,000 |
| 6672371-FR | 2018-06-07 | Mechanical / HVAC | 5629 12TH AVE NE | INSTALL NEW FURNACE INTO EXISTING HOUSE WITH REMODELED BASEMENT. | $0 |
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 2025, 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 →