Contractors that do both HVAC and electrical in Seattle, WA
A ranked shortlist of firms licensed for both HVAC and electrical for someone hiring or vetting in Seattle. One company doing the combined work, not two separate specialists. Ranked on an active L&I class in each trade and job-relevant Seattle city building records, not reviews, ads, or a workmanship guarantee.
Seattle city building records through 2026-10-19, verified against the Washington State Department of Labor & Industries licensing records, snapshot dated 2026-08-16. Ranking reflects license standing and city building records, not a workmanship guarantee. This week's Seattle city building records.
Which contractor that does both HVAC and electrical has done the most HVAC and electrical jobs in Seattle?
Go Green Heating AC & Elec LLC has done the most HVAC and electrical jobs in Seattle of any firm holding the matching L&I class: 2,298 jobs, most recently in 2026. It has held L&I license GOGREGH752DL for 1 year.
That count includes only city building records whose type matches HVAC and electrical work in Seattle's own records, and only firms that hold the matching L&I class as a primary or tied specialty, so a firm with a larger pile of unrelated jobs does not rank here. Jobs are counted per license number, and a firm holding several licenses is counted on its busiest one. Seattle records run through 2026-10-19.
See Go Green Heating AC & Elec LLC's license and job record →Most HVAC and electrical jobs in Seattle, all city records on file, among licensed contractors that do both HVAC and electrical
L&I GOGREGH752DL · 2,298 jobs · 2026-10-16
L&I PROGRCS863J1 · 961 jobs · 2026-10-02
| Rank | Firm | License | Relevant jobs | Most recent |
|---|---|---|---|---|
| 1 | Go Green Heating AC & Elec LLC | L&I GOGREGH752DL | 2,298 | 2026-10-16 |
| 2 | Progressive Comfort Solutions | L&I PROGRCS863J1 | 961 | 2026-10-02 |
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Top 2 contractors that do both HVAC and electrical by Seattle job history
Go Green Heating AC & Elec LLC
L&I GOGREGH752DLSeattle, WA
1 yr licensed2,298 relevant jobs2,299 total jobsLast job 2026Job types: Electrical, Mechanical, Refrigeration, Single-family/duplex Furnace
View license, job history & disciplinary records →Progressive Comfort Solutions
L&I PROGRCS863J1Seattle, WA
12 yrs licensed961 relevant jobs966 total jobsLast job 2026Job types: Electrical, Mechanical, Refrigeration, Single-family/duplex Furnace
View license, job history & disciplinary records →
How this ranking works
Organic results require an active L&I license, the correct class for the trade as the firm's primary or tied fit (a mechanical company that also holds an electrical license does not lead the electrician list), and at least one job-relevant city building record in this city. They are ranked by the number of relevant jobs, then by how recently the firm worked, then by how long the firm has been licensed. This reflects license standing and real city building records - it is not a workmanship guarantee. L&I does not publish a disciplinary file, so a clean record is not part of this ranking. Promoted entries, when present, are paid placements and are not scored by these rules.
Confidence: high. The job type and the license class both match this trade.
Frequently asked questions
- Which contractor that does both HVAC and electrical has done the most HVAC and electrical jobs in Seattle?
- Go Green Heating AC & Elec LLC has done the most HVAC and electrical jobs in Seattle of any firm holding the matching L&I class: 2,298 jobs, most recently in 2026. It has held L&I license GOGREGH752DL for 1 year. That count includes only city building records whose type matches HVAC and electrical work in Seattle's own records, and only firms that hold the matching L&I class as a primary or tied specialty, so a firm with a larger pile of unrelated jobs does not rank here. Jobs are counted per license number, and a firm holding several licenses is counted on its busiest one. Seattle records run through 2026-10-19.
- How are the best contractors that do both HVAC and electrical in Seattle ranked?
- Organic results require an active L&I license, the correct class for the trade as the firm's primary or tied fit (a mechanical company that also holds an electrical license does not lead the electrician list), and at least one job-relevant city building record in this city. They are ranked by the number of relevant jobs, then by how recently the firm worked, then by how long the firm has been licensed. This reflects license standing and real city building records - it is not a workmanship guarantee. L&I does not publish a disciplinary file, so a clean record is not part of this ranking. Promoted entries, when present, are paid placements and are not scored by these rules.
- Is this ranking a guarantee of quality or workmanship?
- No. It reflects Washington State Department of Labor & Industries license standing, longevity, and real city building records - not the quality of any individual job. Always verify a contractor on the official L&I Verify a Contractor and check references before hiring.
- How current is this Seattle contractor data?
- Seattle city building records through 2026-10-19, verified against the Washington State Department of Labor & Industries licensing records, snapshot dated 2026-08-16. The two datasets age separately: the board publishes licensing snapshots on its own cadence, and Seattle publishes city building records on its own. This page regenerates daily.