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Contractor rankings

Most active contractors in Whatcom County, WA

The 25 contractors pulling the most building permits in Whatcom County, ranked by PermitStack's activity score — built from 56,834 permits on file. Updated from live public records.

#ContractorPermitsScoreTop tradesLast permit
1BARRON HEATING & COOLING4,41991addition, electrical, hvacJul 2026
2Marr's Heating And A/C1,85788addition, hvac, interior_remodelJul 2026
3INNOVATIONS INC1,35891hvac, interior_remodel, mechanicalJun 2026
4LYNDEN SHEET METAL INC1,30898addition, electrical, fire_alarmJun 2026
5ANDGAR MECHANICAL LLC1,28298addition, electrical, fire_alarmJun 2026
6Feller Heating90687hvac, mechanical, plumbingMar 2026
7ALVORD-RICHARDSON CONSTRUCTION66991addition, demolition, fenceMay 2026
8Favinger Plumbing40265hvac, mechanical, plumbingApr 2026
9*Main* SMITH MECHANICAL39668addition, hvac, interior_remodelAug 2023
10Pioneer Post Frame Inc34475addition, demolition, fenceAug 2023
11WEST MECHANICAL INC30489hvac, mechanical, plumbingApr 2026
12Coast Construction26394addition, demolition, electricalJun 2026
13Rolling Wheels Construction22178addition, demolition, foundationAug 2024
14CLEAN AIR HEATING AND COOLING21979addition, hvac, mechanicalJul 2026
15COACH CORRAL INC17495addition, demolition, foundationMay 2026
16FABER CONSTRUCTION CORP17190addition, demolition, electricalMay 2026
17ULTRA TANK SERVICES INC13781addition, demolition, fire_alarmApr 2026
18DJ & DJ Contracting, LLC12175interior_remodel, new_construction, plumbingNov 2025
19MOCERI CONSTRUCTION INC9976addition, demolition, fenceJul 2025
20*Tidemark Conversion* BLYTHE PLUMBING/HEATING INC9544hvac, interior_remodel, mechanicalJul 2015
21Z CONSTRUCTION CO., INC9384addition, demolition, electricalJun 2025
22Gary Kitching LLC8676addition, demolition, gradingNov 2025
23WHATCOM FARMERS CO-OP8623fire_alarm, hvac, mechanicalJan 2016
24Vetkov Construction LLC8473demolition, new_constructionMay 2026
25ALLIANCE PROPERTIES 2000 LLC8348addition, new_constructionJun 2021

"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.

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