The 25 contractors pulling the most building permits in Petaluma, ranked by PermitStack's activity score — built from 57,826 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | Sunrun Inc | 367 | 100 | addition, battery, electrical | Jun 2025 |
| 2 | THORPE DESIGN INC | 279 | 100 | addition, demolition, fire_alarm | Aug 2026 |
| 3 | MOORE SERVICES HOLDINGS LLC | 276 | 97 | battery, electrical, hvac | Feb 2026 |
| 4 | ROMAN'S PLUMBING | 228 | 90 | interior_remodel, plumbing, renovation | Jul 2026 |
| 5 | ELEVATED COMFORT INC | 182 | 94 | hvac, mechanical, plumbing | Jul 2026 |
| 6 | ADAMS REFRIGERATION SERVICE INC | 181 | 78 | hvac, mechanical | Jul 2026 |
| 7 | FAST WATER HEATER CO | 133 | 99 | electrical, hvac, interior_remodel | Jul 2026 |
| 8 | AWT CONSTRUCTION GROUP, INC | 132 | 69 | demolition, interior_remodel, renovation | Dec 2024 |
| 9 | PETER LEVI PLUMBING INC | 127 | 100 | electrical, foundation, hvac | Aug 2026 |
| 10 | Henry Mechanical | 102 | 90 | electrical, hvac, mechanical | Jul 2026 |
| 11 | KC Home Services | 99 | 81 | addition, electrical, hvac | Aug 2026 |
| 12 | KB HOME | 80 | 100 | addition, electrical, fence | Sep 2023 |
| 13 | MAUS ELECTRIC | 73 | 71 | electrical, interior_remodel, renovation | Aug 2026 |
| 14 | Pioneer Fire inc. | 66 | 72 | demolition, fire_alarm, interior_remodel | Apr 2026 |
| 15 | John Owens Services | 52 | 98 | electrical, hvac, interior_remodel | Jul 2026 |
| 16 | Moore Home Services | 49 | 93 | electrical, hvac, interior_remodel | Aug 2026 |
| 17 | Better Earth Electric | 46 | 100 | battery, electrical, ev_charger | Jun 2023 |
| 18 | BENJAMIN FRANKLIN PLUMBING | 45 | 100 | addition, electrical, ev_charger | May 2024 |
| 19 | NORTH HVAC SERVICES | 44 | 85 | addition, hvac, mechanical | Jun 2026 |
| 20 | Focus Realty Services Inc. | 42 | 65 | new_construction, solar | May 2024 |
| 21 | Hulbert Heating | 42 | 64 | hvac, mechanical | May 2026 |
| 22 | Sonoma County Electric | 38 | 61 | electrical | Jun 2026 |
| 23 | Rite Rooter Plumbing | 36 | 80 | electrical, hvac, plumbing | Dec 2025 |
| 24 | DBA BRAGG PLUMBING & HEATING | 36 | 64 | hvac, plumbing | Aug 2026 |
| 25 | WESTSIDE MECHANICAL | 35 | 76 | fire_alarm, hvac, interior_remodel | Jul 2026 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Petaluma.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score