The 25 contractors pulling the most building permits in Costa Mesa, ranked by PermitStack's activity score — built from 125,478 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | Sunrun Installation Services, Inc | 45 | 100 | addition, battery, electrical | Sep 2026 |
| 2 | Mike Holland Construction Inc | 17 | 73 | addition, electrical, grading | Aug 2026 |
| 3 | ATLAS ROOFING | 16 | 100 | addition, fence, interior_remodel | Oct 2026 |
| 4 | PONTOLILLO INC | 16 | 58 | fire_alarm | Sep 2026 |
| 5 | SERVICE CHAMPIONS | 14 | 100 | addition, electrical, ev_charger | Oct 2026 |
| 6 | K.C. Electric | 14 | 76 | electrical, ev_charger, solar | Jun 2026 |
| 7 | HCI SYSTEMS INC | 12 | 98 | addition, demolition, electrical | Sep 2026 |
| 8 | SBG BUILDERS LLC | 12 | 63 | addition | Sep 2026 |
| 9 | JP Electrical Solutions | 12 | 61 | electrical, ev_charger, interior_remodel | Aug 2026 |
| 10 | HOYT ROOFS INC | 11 | 98 | demolition, hvac, interior_remodel | Oct 2026 |
| 11 | CO2 MONITORING LLC | 7 | 90 | addition, electrical, fire_alarm | Aug 2026 |
| 12 | Schiller Roofing Inc | 7 | 80 | interior_remodel, renovation, roofing | Jun 2026 |
| 13 | Precision Construction And Painting Inc | 7 | 75 | addition, demolition, foundation | Jul 2026 |
| 14 | Premier Power, LLC | 6 | 95 | addition, electrical, ev_charger | Aug 2026 |
| 15 | APEX FIRE SYSTEMS INC | 6 | 79 | addition, demolition, electrical | Sep 2026 |
| 16 | GREENDAY ELECTRIC & SOLAR INC | 6 | 73 | electrical, ev_charger, solar | Sep 2026 |
| 17 | RENEWAL BY ANDERSEN LLC | 5 | 100 | addition, demolition, electrical | Sep 2026 |
| 18 | CALIFORNIA DELTA MECHANICAL INC | 5 | 100 | electrical, hvac, interior_remodel | Sep 2026 |
| 19 | Allcom Electric | 5 | 97 | demolition, electrical, fire_alarm | Jul 2026 |
| 20 | ALAIN HIRSCH CONSTRUCTION CORP | 5 | 81 | addition, demolition, electrical | Sep 2026 |
| 21 | HURST & SIEBERT INC | 5 | 81 | addition, demolition, electrical | Sep 2026 |
| 22 | Rational Roofing Services | 5 | 65 | roofing | Aug 2026 |
| 23 | Adele Construction Inc | 5 | 65 | roofing, solar | Sep 2026 |
| 24 | MADE BUILDING COMPANY | 5 | 64 | addition, electrical, hvac | Aug 2026 |
| 25 | FERGUSON CUSTOM BUILDERS LLC | 5 | 62 | addition, interior_remodel, new_construction | Aug 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 Costa Mesa.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score