The 25 contractors pulling the most building permits in Danville, ranked by PermitStack's activity score — built from 65,975 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | SERVICE CHAMPIONS | 1,132 | 100 | addition, electrical, ev_charger | Jul 2026 |
| 2 | JEMICO LLC | 381 | 100 | addition, interior_remodel, new_construction | Jul 2026 |
| 3 | FAST WATER HEATER CO | 358 | 99 | electrical, hvac, interior_remodel | Jul 2026 |
| 4 | Sunrun Inc | 343 | 100 | addition, battery, electrical | May 2026 |
| 5 | DEPENDABLE ROOFING, INC | 338 | 86 | interior_remodel, renovation, roofing | Jun 2026 |
| 6 | QUALTECH HEATING & COOLING | 271 | 79 | electrical, hvac, interior_remodel | Jul 2026 |
| 7 | BURKETT'S POOL PLASTERING INC | 186 | 89 | demolition, electrical, foundation | Jun 2026 |
| 8 | GROUNDWORKS CALIFORNIA LLC | 179 | 99 | addition, fence, foundation | Jun 2026 |
| 9 | AXIS CONSTRUCTION | 161 | 99 | addition, demolition, electrical | Apr 2023 |
| 10 | Quick Systems Inc. | 159 | 75 | electrical, interior_remodel, solar | Jan 2019 |
| 11 | HARRIS WATER HEATERS INC | 154 | 94 | electrical, hvac, plumbing | Mar 2026 |
| 12 | Sunrun Installation Service, Inc. | 149 | 100 | battery, electrical, hvac | Jul 2026 |
| 13 | CUSTOM EXTERIORS INC | 146 | 92 | addition, electrical, fence | May 2026 |
| 14 | AWHAP ACQUISITION CORP | 145 | 75 | hvac, plumbing | Oct 2022 |
| 15 | FRESCHI AIR SYSTEMS, LLC | 144 | 80 | electrical, hvac, plumbing | Sep 2021 |
| 16 | BENJAMIN FRANKLIN PLUMBING | 143 | 100 | addition, electrical, ev_charger | Feb 2026 |
| 17 | West Coast Solar, Inc. | 131 | 100 | battery, electrical, ev_charger | Apr 2026 |
| 18 | Corda Solar | 119 | 94 | electrical, solar | May 2026 |
| 19 | ENVIRONMENTAL HEATING AND AIR SOLUTIONS | 117 | 80 | hvac, mechanical, plumbing | May 2026 |
| 20 | Bay Area Solar Solutions Inc. | 116 | 97 | battery, electrical, ev_charger | Jun 2026 |
| 21 | Skuba Construction Services | 116 | 58 | interior_remodel, new_construction | Apr 2024 |
| 22 | MOORE MECHANICAL | 113 | 90 | electrical, hvac, mechanical | Feb 2023 |
| 23 | R&J CONSTRUCTION | 113 | 74 | demolition, electrical, fence | Jul 2026 |
| 24 | Solar Technologies | 112 | 100 | battery, electrical, hvac | Jun 2026 |
| 25 | NorthStar Solar Inc. | 110 | 96 | electrical, ev_charger, roofing | Apr 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 Danville.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CA&sort=score