The 25 contractors pulling the most building permits in Whatcom County, ranked by PermitStack's activity score — built from 91,343 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | BARRON HEATING & COOLING | 4,566 | 91 | electrical, hvac, interior_remodel | Aug 2026 |
| 2 | Marr's Heating And A/C | 1,954 | 87 | addition, hvac, mechanical | Aug 2026 |
| 3 | INNOVATIONS INC | 1,363 | 91 | hvac, mechanical, new_construction | Aug 2026 |
| 4 | LYNDEN SHEET METAL INC | 1,354 | 98 | addition, electrical, fire_alarm | Aug 2026 |
| 5 | ANDGAR MECHANICAL LLC | 1,306 | 98 | addition, electrical, fire_alarm | Jul 2026 |
| 6 | Feller Heating | 907 | 85 | hvac, mechanical, plumbing | Mar 2026 |
| 7 | ALVORD-RICHARDSON CONSTRUCTION | 680 | 91 | addition, demolition, fence | Aug 2026 |
| 8 | SMITH MECHANICAL INC | 433 | 96 | hvac, interior_remodel, mechanical | Aug 2026 |
| 9 | Favinger Plumbing | 407 | 80 | hvac, interior_remodel, mechanical | Aug 2026 |
| 10 | Pioneer Post Frame Inc | 348 | 74 | addition, demolition, fence | Aug 2023 |
| 11 | WEST MECHANICAL INC | 318 | 90 | hvac, mechanical, plumbing | Aug 2026 |
| 12 | Chimney Sweep Inc, The | 298 | 30 | hvac, mechanical, plumbing | Feb 2018 |
| 13 | Coast Construction | 268 | 94 | addition, demolition, electrical | Aug 2026 |
| 14 | D B JOHNSON CONSTRUCTION INC | 268 | 56 | new_construction, plumbing | Sep 2009 |
| 15 | FAST WATER HEATER COMPANY | 255 | 100 | electrical, hvac, interior_remodel | May 2026 |
| 16 | CLEAN AIR HEATING AND COOLING | 231 | 79 | hvac, mechanical, plumbing | Aug 2026 |
| 17 | Rolling Wheels Construction | 223 | 77 | addition, demolition, foundation | Aug 2024 |
| 18 | COACH CORRAL INC | 174 | 95 | addition, demolition, foundation | Jul 2026 |
| 19 | FABER CONSTRUCTION CORP | 173 | 91 | addition, demolition, electrical | Jun 2026 |
| 20 | ULTRA TANK SERVICES INC | 139 | 82 | addition, demolition, fire_alarm | Aug 2026 |
| 21 | Craft Stove Installations Inc | 135 | 50 | hvac, mechanical | Dec 2021 |
| 22 | DJ & DJ Contracting, LLC | 125 | 74 | interior_remodel, new_construction, plumbing | Nov 2025 |
| 23 | COMMERCIAL FIRE PROTECTION INC | 124 | 93 | addition, electrical, fire_alarm | Jul 2026 |
| 24 | Pioneer Pole Bldg/Gnl Cnst Inc | 118 | 54 | addition, foundation, grading | Oct 2020 |
| 25 | BELLINGHAM LOCK & SAFE INC | 113 | 43 | addition, fire_alarm, interior_remodel | Mar 2016 |
"Score" is a 0–100 activity index from permit volume, recency, project value, and geographic reach. "Permits" counts building permits this contractor pulled in Whatcom County.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=WA&sort=score