The 25 contractors pulling the most building permits in Kent, ranked by PermitStack's activity score — built from 47,800 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | POTELCO INC | 1,084 | 94 | addition, battery, demolition | Oct 2024 |
| 2 | FAST WATER HEATER COMPANY | 888 | 100 | electrical, hvac, interior_remodel | Sep 2023 |
| 3 | Infrasource Services LLC | 881 | 93 | addition, demolition, electrical | Mar 2025 |
| 4 | NORTH SKY COMMUNICATIONS INC | 751 | 96 | addition, demolition, electrical | Apr 2025 |
| 5 | SEFNCO COMMUNICATIONS INC | 729 | 96 | demolition, electrical, fence | Jun 2023 |
| 6 | BRENNAN HEATING & A/C LLC | 665 | 91 | electrical, ev_charger, hvac | Jan 2023 |
| 7 | WASHINGTON ENERGY SERVICES CO | 532 | 100 | addition, electrical, ev_charger | Jan 2023 |
| 8 | BOBS HEATING | 464 | 83 | electrical, hvac, interior_remodel | Jan 2023 |
| 9 | AAA HEATING & A/C | 442 | 38 | mechanical, plumbing | Jan 2023 |
| 10 | HARBOUR HOMES | 434 | 88 | addition, demolition, electrical | Mar 2024 |
| 11 | KB HOME | 270 | 100 | addition, electrical, fence | Sep 2023 |
| 12 | MM COMFORT SYSTEMS | 246 | 83 | electrical, fence, hvac | Jan 2023 |
| 13 | CHETS ROOFING & CONSTRUCTION | 228 | 56 | interior_remodel, roofing | Sep 2022 |
| 14 | ICHIJO USA CO LTD | 209 | 84 | demolition, fence, fire_alarm | Jul 2019 |
| 15 | POLYGON WLH LLC | 207 | 65 | addition, demolition, electrical | Oct 2021 |
| 16 | LENNAR NORTHWEST INC | 197 | 91 | addition, electrical, fire_alarm | Nov 2022 |
| 17 | PRINCE TELECOM LLC | 193 | 92 | electrical, new_construction, plumbing | May 2023 |
| 18 | AAA HEATING & AC | 190 | 56 | hvac, mechanical, plumbing | Dec 2020 |
| 19 | ARCHER CONSTRUCTION INC | 175 | 98 | addition, battery, demolition | Mar 2025 |
| 20 | CANNON CONSTRUCTION | 174 | 98 | addition, battery, demolition | Jul 2023 |
| 21 | NORTHWEST ROOF SERVICE | 155 | 57 | interior_remodel, roofing | Oct 2022 |
| 22 | BLACK HILLS INC | 152 | 79 | hvac, mechanical, plumbing | Dec 2022 |
| 23 | SCHNEIDER HOMES INC | 151 | 74 | addition, demolition, fence | Sep 2025 |
| 24 | Valentine Roofing | 140 | 94 | renovation, roofing | Sep 2022 |
| 25 | PATRIOT FIRE PROTECTION INC | 132 | 100 | addition, battery, demolition | May 2024 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Kent.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=WA&sort=score