The 25 contractors pulling the most building permits in Hawthorne, ranked by PermitStack's activity score — built from 2,274 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | Klassic Engineering and Construction Inc. | 32 | 61 | electrical, interior_remodel, plumbing | Oct 2025 |
| 2 | ADAR BUILDERS INC | 30 | 58 | interior_remodel | Sep 2025 |
| 3 | RENEWAL BY ANDERSEN LLC | 14 | 100 | addition, electrical, interior_remodel | Feb 2026 |
| 4 | PRIMECO LLC | 11 | 68 | demolition, fence, foundation | Aug 2024 |
| 5 | AMERICAN AC HEAT PLUMBING | 9 | 62 | addition, electrical, hvac | May 2026 |
| 6 | AMERICAN AIR CONDITIONING AND HEATING | 9 | 59 | electrical, hvac, interior_remodel | Oct 2025 |
| 7 | LIFETIME SOLUTIONS INC | 9 | 58 | electrical, interior_remodel, plumbing | Jun 2026 |
| 8 | Reliable Energy | 8 | 53 | hvac, interior_remodel, mechanical | Jul 2024 |
| 9 | ROQUEMORE ELECTRIC INC | 8 | 41 | electrical | May 2025 |
| 10 | AMERICAN HOME REMODELING INC | 7 | 97 | addition, demolition, electrical | Jun 2026 |
| 11 | SUNSHINE BUILDERS INC | 7 | 79 | addition, demolition, fence | Dec 2024 |
| 12 | Q GENERAL CONSTRUCTION LLC | 7 | 58 | addition, demolition, electrical | Dec 2025 |
| 13 | J&C RETROFIT CONSTRUCTION INC | 7 | 56 | foundation, interior_remodel | Jan 2026 |
| 14 | AFTER BEFORE CREATIONS INC | 7 | 55 | interior_remodel | Mar 2025 |
| 15 | RM 1 Construction, Inc. | 7 | 49 | interior_remodel | Nov 2025 |
| 16 | AZ AIR CONDTIONING AND HEATING | 7 | 40 | electrical, hvac, plumbing | Jul 2023 |
| 17 | ADEEDO PLUMBING,HEATING AND AIR | 7 | 36 | plumbing | May 2026 |
| 18 | WATER HEATERS ONLY INC | 6 | 97 | electrical, hvac, interior_remodel | Apr 2026 |
| 19 | SERVICE CHAMPIONS | 6 | 95 | addition, electrical, hvac | Mar 2024 |
| 20 | WCCG Inc | 6 | 66 | electrical, interior_remodel, new_construction | Apr 2026 |
| 21 | Nexgen HVAC | 6 | 53 | electrical, hvac, plumbing | Feb 2024 |
| 22 | KARA CONSTRUCTION GROUP INC | 6 | 52 | electrical, interior_remodel, mechanical | Sep 2025 |
| 23 | YC Builders | 6 | 41 | interior_remodel | Nov 2023 |
| 24 | HDZ PLUMBING & SEWER INC | 6 | 37 | plumbing | Jun 2026 |
| 25 | Sunrun Inc | 5 | 100 | addition, battery, electrical | Aug 2025 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Hawthorne.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score