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COMPANY RECORD · SEATTLE, WA

Williams Mechanical Inc — permit history in Seattle, WA

Williams Mechanical Inc appears on 46 Seattle permit records from 2015 through 2026, most often mechanical / hvac (80.4% of the record).

Permit categories

CategoryPermitsShare
Mechanical / HVAC3780.4%
Electrical919.6%

2 categories, as classified by the issuing authority. Small categories stay visible rather than being rounded away.

Activity by year

YearPermits issued
20158
20161
20172
20181
201919
20206
20222
20232
20254
20261

Busiest year on record: 2019, with 19 permits. One project can account for several filings, so read this as filing activity rather than workload.

Where they worked

Address in sourceMost recent permit
2612 W GALER ST2026-01-20
4805 NE 45TH ST2025-08-28
12316 28TH AVE NE2025-07-23
1600 E OLIVE WAY2025-05-21
1320 4TH AVE2025-03-28
3610 S EDMUNDS ST2023-06-13
1122 23RD AVE2022-08-16
1132 23RD AVE2022-08-16
2925 E MADISON ST2020-10-30
600 5TH AVE S2020-08-06
100 DEXTER AVE N2020-05-14
600 5TH AVE S2020-01-08
2505 1st AVE2019-12-09
2749 CALIFORNIA AVE SW2019-09-26

24 distinct addresses on record; the 14 most recent are shown. Declared value on record runs from $350 to $800,000, median $8,250. Addresses appear as the authority published them. A permit is a filing at an address, not a completed job there.

Permits on record

46 permits; open the full list
PermitIssuedCategoryAddress in sourceScope as filedDeclared value
7125500-FR2026-01-20Mechanical / HVAC2612 W GALER STFurnace swap out - like for like.$4,500
7104228-EL2025-08-28Electrical4805 NE 45TH STInstall (3) control wiring.$1,000
7094817-ME2025-07-23Mechanical / HVAC12316 28TH AVE NEInstall dryer vent in unit 402, subject to field inspection, STFI.$600
7078205-ME2025-05-21Mechanical / HVAC1600 E OLIVE WAYTI Remodel - Redistribute air using existing equipment, per plan.$30,000
7059614-ME2025-03-28Mechanical / HVAC1320 4TH AVERelocate and recommission existing HVAC systems to match the new floor plan. per plans$200,000
6967944-BP2023-06-13Mechanical / HVAC3610 S EDMUNDS STBoiler replacement due to failure (2 of 2 boilers) - replaced both boilers because existing boilers could not communicate with new models.$7,500
6967940-BP2023-06-13Mechanical / HVAC3610 S EDMUNDS STBoiler replacement due to failure - replaced both boilers because existing boilers could not communicate with new models.$7,500
6917310-EL2022-08-16Electrical1122 23RD AVEInstall thermostats for (2) air handlers & (1) ERV. Lake, 11/10/2022, address changed from 1132 to 1122$9,000
6917304-RF2022-08-16Mechanical / HVAC1132 23RD AVETI Buildout with a 2 zone system from an existing VRF system.$9,000
6801536-ME2020-10-30Mechanical / HVAC2925 E MADISON STCommercial HVAC mechanical for a PCC grocery store in a multi use building, per plan.$750,000
6794922-BP2020-08-06Mechanical / HVAC600 5TH AVE SNew Expansion Tank$350
6794921-BP2020-08-06Mechanical / HVAC600 5TH AVE SNew Expansion Tank$350
6782750-BP2020-05-14Mechanical / HVAC100 DEXTER AVE NHYDROTHERM CIS BOILER$20,000
6782818-BP2020-05-14Mechanical / HVAC100 DEXTER AVE NAir separator$20,000
6765851-EL2020-01-08Electrical600 5TH AVE SGrocery store remodel$5,000
6761823-BP2019-12-09Mechanical / HVAC2505 1st AVERestaurant$12,000
6760173-BP2019-11-25Mechanical / HVAC600 5TH AVE SGrocery store remodel$9,500
6760170-BP2019-11-25Mechanical / HVAC600 5TH AVE SGrocery store remodel$9,500
6760154-BP2019-11-25Mechanical / HVAC600 5TH AVE SGrocery store remodel$21,000
6760150-BP2019-11-25Mechanical / HVAC600 5TH AVE SGrocery store remodel$21,000
6750343-BP2019-09-26Mechanical / HVAC2749 CALIFORNIA AVE SWNew Grocery Store$3,500
6750349-BP2019-09-26Mechanical / HVAC2749 CALIFORNIA AVE SWNew Grocery Store$600
6749111-BP2019-09-19Mechanical / HVAC2749 CALIFORNIA AVE SWNew Grocery Store$1,200
6746871-RF2019-09-06Mechanical / HVAC1451 NW 46TH STNew grocery store$5,000
6746869-RF2019-09-06Mechanical / HVAC2749 CALIFORNIA AVE SWNew grocery store$15,000
6740968-EL2019-07-31Electrical1451 NW 46TH STNew Grocery Store$14,000
6732995-EL2019-06-14Electrical2749 CALIFORNIA AVE SWNew Grocery Store$800,000
6718661-ME2019-04-30Mechanical / HVAC9999 HOLMAN RD NWReplacement of existing kitchen hood and existing exhaust fan with new kitchen hood and new exhaust fan, per plans.$16,000
6715730-BP2019-03-06Mechanical / HVAC2220 E UNION STNew grocery buildout$3,500
6713256-BP2019-02-19Mechanical / HVAC2220 E UNION STNew Grocery Store$3,500
6713254-BP2019-02-19Mechanical / HVAC2220 E UNION STNew Grocery Store$3,500
6713240-BP2019-02-19Mechanical / HVAC2220 E UNION STNew Grocery Store$3,500
6713243-BP2019-02-19Mechanical / HVAC2220 E UNION STNew Grocery Store$3,500
6713246-BP2019-02-19Mechanical / HVAC2220 E UNION STNew Grocery Store$3,500
6639808-BP2018-01-12Mechanical / HVAC2203 AIRPORT WAY SBOILER REPLACEMENT
6607260-EL2017-07-11Electrical1400 NW 56TH STINSTALL THERMOSTAT FOR RTU-1, RELOCATE ANOTHER THERMOSTAT
6585498-ME2017-05-30Mechanical / HVAC1400 NW 56TH STInstall (2) natural gas A/C rooftop units, (1) makeup air unit and (1) exhaust fan, per plan. (Ballard Market)$70,000
6573117-EL2016-12-22Electrical1400 NW MARKET STEXTENDING LOW VOLTAGE CABLE.
6487656-ME2015-08-21Mechanical / HVAC900 POPLAR PL SAdd and relocate fresh air ventilation per new floor plan.$14,000
6480776-BP2015-06-24Mechanical / HVAC4801 RAINIER AVE SMECHANICAL ROOM INSTALLATION - BOILER. [MEZZANINE MECH. ROOM]
6480775-BP2015-06-24Mechanical / HVAC4801 RAINIER AVE SMECHANICAL ROOM INSTALLATION - AIR SEPARATTOR. [MEZZANINE MECH. ROOM]
6480774-BP2015-06-24Mechanical / HVAC4801 RAINIER AVE SMECHANICAL ROOM INSTALLATION - BOILER. [MEZZANINE MECH. ROOM]
6480771-BP2015-06-24Mechanical / HVAC4801 RAINIER AVE SMECHANICAL ROOM INSTALLATION -PRESSURE VESSEL. [MEZZANINE MECH. ROOM]
6478067-EL2015-06-08Electrical4801 RAINIER AVE SLV ELECTRICAL CONNECTIONS FOR BOILERS, PUMPS, T-STATS AND SENSOR.
6471733-EL2015-05-04Electrical1400 NW MARKET STLOW VOLTAGE WIRING FOR 3 THERMOSTATS
6471632-RF2015-04-30Mechanical / HVAC1400 NW MARKET STREFRIGERATION PIPING FOR 3 AC UNITS

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 →