The 25 contractors pulling the most building permits in Boulder, ranked by PermitStack's activity score — built from 336,511 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | Waiting for Licensed Contractor | 11,355 | 86 | addition, electrical, fence | Jul 2026 |
| 2 | SAVE HOME HEAT CO | 7,565 | 80 | addition, electrical, hvac | Jul 2026 |
| 3 | PRECISION PLUMBING & HEATING | 4,407 | 96 | addition, electrical, grading | Jul 2026 |
| 4 | LEGACY SYSTEM CONTRACTOR | 4,093 | 56 | addition, electrical, fence | Jun 2025 |
| 5 | Xcel Energy Services Inc | 3,846 | 60 | — | Jul 2026 |
| 6 | MEYERS HEATING AND A/C | 3,706 | 61 | addition, electrical, fence | Jul 2026 |
| 7 | BLACK ROOFING, INC. | 2,665 | 81 | interior_remodel, new_construction, renovation | Jul 2026 |
| 8 | COOPER HEATING & COOLING INC. | 2,485 | 61 | addition, electrical, hvac | Jul 2026 |
| 9 | EXCEL ELECTRIC CORPORATION | 2,179 | 36 | addition, electrical, fence | Apr 2020 |
| 10 | BOULDER ROOFING, LLC | 2,144 | 60 | fence, interior_remodel, plumbing | Jul 2026 |
| 11 | B&M ROOFING OF COLORADO | 1,714 | 82 | interior_remodel, new_construction, renovation | Jul 2026 |
| 12 | VAN LIER ROOFING | 1,686 | 61 | interior_remodel, renovation, roofing | Jul 2026 |
| 13 | BROWN PLUMBING AND HEATING | 1,652 | 53 | addition, electrical, interior_remodel | Jan 2025 |
| 14 | BERNIE'S PLUMBING & HEATING, CO. | 1,587 | 61 | addition, electrical, hvac | Jul 2026 |
| 15 | Service Experts | 1,560 | 100 | addition, demolition, electrical | Jul 2026 |
| 16 | WYATT CONSTRUCTION CO INC | 1,479 | 86 | addition, demolition, electrical | Jun 2025 |
| 17 | MARKEL HOMES CONSTRUCTION CO | 1,465 | 70 | addition, electrical, fence | Apr 2024 |
| 18 | Namaste Solar Electric, Inc. | 1,453 | 91 | addition, battery, electrical | Jul 2026 |
| 19 | ELECTRICIANS INC OF BOULDER | 1,436 | 36 | addition, electrical, interior_remodel | Nov 2011 |
| 20 | QUINLAN CONSTRUCTION INC | 1,418 | 90 | addition, demolition, electrical | May 2026 |
| 21 | PLANET PLUMBING | 1,397 | 92 | addition, hvac, interior_remodel | Jul 2026 |
| 22 | Alarm Detection Systems Inc. | 1,379 | 90 | electrical, fire_alarm, interior_remodel | Jul 2026 |
| 23 | SAND CONSTRUCTION OF COLORADO LLC | 1,325 | 86 | addition, electrical, fence | Jul 2026 |
| 24 | CITY ELECTRIC, LLC | 1,127 | 95 | addition, electrical, ev_charger | May 2026 |
| 25 | PIPELINE INDUSTRIES INC | 1,078 | 46 | electrical, hvac, new_construction | Mar 2014 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Boulder.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CO&sort=score