The 25 contractors pulling the most building permits in Boulder County, ranked by PermitStack's activity score — built from 124,633 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | SAVE HOME HEAT CO | 1,806 | 85 | addition, electrical, hvac | Aug 2024 |
| 2 | RENEWAL BY ANDERSEN LLC | 1,395 | 100 | addition, demolition, electrical | May 2026 |
| 3 | PRECISION PLUMBING & HEATING | 1,189 | 96 | addition, electrical, grading | Oct 2022 |
| 4 | BOULDER ROOFING, LLC | 933 | 80 | fence, interior_remodel, new_construction | May 2026 |
| 5 | CLIMATE MASTERS SERVICE CO | 873 | 41 | addition, electrical, hvac | Jan 2023 |
| 6 | SAVE HOME HEAT COMPANY | 742 | 56 | electrical, hvac, interior_remodel | May 2026 |
| 7 | BLACK ROOFING, INC. | 641 | 88 | interior_remodel, new_construction, renovation | May 2023 |
| 8 | ROOF CHECK, INC. | 618 | 86 | interior_remodel, new_construction, renovation | Apr 2026 |
| 9 | MEIERS MECHANICAL | 606 | 62 | electrical, ev_charger, hvac | Apr 2026 |
| 10 | B&M ROOFING OF COLORADO | 574 | 83 | interior_remodel, new_construction, renovation | Mar 2026 |
| 11 | Namaste Solar Electric, Inc. | 573 | 95 | addition, battery, electrical | Dec 2024 |
| 12 | COOPER HEATING & COOLING INC. | 564 | 100 | addition, electrical, ev_charger | Nov 2024 |
| 13 | DEER CREEK PLUMBING, INC. | 510 | 94 | addition, electrical, hvac | Sep 2005 |
| 14 | NORTHERN COLORADO AIR INC | 410 | 62 | addition, electrical, hvac | Sep 2024 |
| 15 | NAMASTE SOLAR | 372 | 78 | battery, electrical, ev_charger | Apr 2026 |
| 16 | VAN LIER ROOFING | 352 | 80 | interior_remodel, renovation, roofing | May 2026 |
| 17 | WELZIG MECHANICAL | 350 | 61 | addition, electrical, hvac | Apr 2026 |
| 18 | A&H SERVICES | 329 | 68 | addition, electrical, hvac | Jul 2006 |
| 19 | MEYERS HEATING & A/C, INC. | 329 | 50 | hvac, interior_remodel, mechanical | Nov 2025 |
| 20 | COLORADO DELTA MECHANICAL | 298 | 100 | electrical, hvac, interior_remodel | Apr 2026 |
| 21 | Independent Power Systems | 298 | 86 | battery, electrical, ev_charger | Apr 2026 |
| 22 | Sunrun Installation Services, Inc | 280 | 100 | addition, battery, electrical | Jan 2025 |
| 23 | APPLEWOOD PLUMBING, HEATING, & ELECTRIC | 272 | 86 | battery, electrical, ev_charger | Apr 2026 |
| 24 | PRECISION PLUMBING | 246 | 100 | addition, demolition, electrical | Feb 2021 |
| 25 | EXCEL ELECTRIC | 242 | 98 | addition, electrical, fire_alarm | Sep 2023 |
"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 County.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CO&sort=score