The 25 contractors pulling the most building permits in Longmont, ranked by PermitStack's activity score — built from 3,889 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | MEIERS MECHANICAL | 9 | 62 | electrical, ev_charger, hvac | Oct 2026 |
| 2 | COLORADO DELTA MECHANICAL | 3 | 100 | electrical, hvac, interior_remodel | Oct 2026 |
| 3 | MHC Electrical Solutions LLC | 3 | 57 | electrical, solar | Sep 2026 |
| 4 | Nex-Gen Exteriors Inc. | 3 | 57 | renovation | Sep 2026 |
| 5 | NORTHERN COLORADO ENERGY SOLUTIONS, LLC | 3 | 55 | hvac, mechanical, plumbing | Oct 2026 |
| 6 | POWER HOME REMODELING GROUP LLC | 2 | 100 | addition, electrical, fence | Oct 2026 |
| 7 | PLANET PLUMBING | 2 | 96 | addition, hvac, interior_remodel | Oct 2026 |
| 8 | FIX-IT GROUP LLC | 2 | 89 | electrical, ev_charger, hvac | Sep 2026 |
| 9 | BULLDOG ROOFING | 2 | 86 | addition, interior_remodel, renovation | Oct 2026 |
| 10 | Beltran Electric | 2 | 83 | electrical, hvac, new_construction | Oct 2026 |
| 11 | BLUEBIRD CONSTRUCTION, LLC | 2 | 71 | hvac, interior_remodel, renovation | Sep 2026 |
| 12 | TRIDENT SECURITY SYSTEMS | 2 | 71 | fire_alarm | Sep 2026 |
| 13 | HYPER FLOW SERVICE COMPANY | 2 | 67 | plumbing | Oct 2026 |
| 14 | KAHAR PLUMBING & HEATING | 2 | 62 | addition, demolition, fire_alarm | Oct 2026 |
| 15 | Swan Heating & Air | 2 | 62 | demolition, electrical, hvac | Oct 2026 |
| 16 | THRASHER INC | 1 | 100 | addition, electrical, fence | Oct 2026 |
| 17 | COOPER HEATING & COOLING INC. | 1 | 100 | addition, electrical, ev_charger | Oct 2026 |
| 18 | ENERGY RESOURCE CENTER | 1 | 100 | electrical, hvac, interior_remodel | Sep 2026 |
| 19 | Photon Brothers Inc. | 1 | 100 | battery, electrical, ev_charger | Oct 2026 |
| 20 | JOHNSON CONTROLS FIRE PROTECTION LP | 1 | 100 | addition, battery, demolition | Sep 2026 |
| 21 | HOWELL CONSTRUCTION | 1 | 99 | addition, demolition, electrical | Sep 2026 |
| 22 | GROUNDWORKS COLORADO LLC | 1 | 98 | addition, electrical, fence | Sep 2026 |
| 23 | PLUMBLINE SERVICES | 1 | 92 | electrical, ev_charger, fence | Sep 2026 |
| 24 | SUMMIT ROOFING SOLUTIONS | 1 | 89 | interior_remodel, roofing | Oct 2026 |
| 25 | PIPELINE SOLUTIONS LLC | 1 | 83 | hvac, interior_remodel, new_construction | Sep 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 Longmont.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CO&sort=score