The 25 contractors pulling the most building permits in Philadelphia, ranked by PermitStack's activity score — built from 917,453 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | 1 800 HEATERS INC | 9,326 | 60 | addition, plumbing | May 2026 |
| 2 | BEST CHOICE PLUMBING, LLC | 6,460 | 63 | addition, demolition, new_construction | May 2026 |
| 3 | MR D'S PLUMBING & HEATING | 5,806 | 60 | plumbing | May 2026 |
| 4 | B. M. CONSULTING SERVICES INC. | 5,697 | 60 | addition, interior_remodel, new_construction | May 2026 |
| 5 | SHEGDA CONSTRUCTION CORP | 4,463 | 60 | addition, new_construction, plumbing | May 2026 |
| 6 | Oliver Sprinkler Co., Inc. | 4,366 | 60 | addition, electrical, interior_remodel | May 2026 |
| 7 | BILL FRUSCO PLUMBING & HEATING | 4,092 | 60 | addition, plumbing | May 2026 |
| 8 | ONEIDA FIRE PROTECTION INC | 3,543 | 60 | addition, interior_remodel, new_construction | May 2026 |
| 9 | ROTO ROOTER SERVICES COMPANY | 3,033 | 81 | foundation, plumbing | Mar 2020 |
| 10 | PosiGen Provider LLC | 2,991 | 57 | electrical | Aug 2025 |
| 11 | LOR-MAR MECHANICAL SERVICES | 2,854 | 60 | addition, new_construction, plumbing | Apr 2026 |
| 12 | JACK EDMONDSON, INC. | 2,809 | 60 | addition, plumbing | May 2026 |
| 13 | AL-KAUN CO | 2,759 | 60 | addition, new_construction | May 2026 |
| 14 | GENERATION 3 ELECTRIC INC | 2,442 | 60 | addition, electrical, new_construction | May 2026 |
| 15 | GUARANTEED PLUMBING INC | 2,405 | 80 | plumbing | Mar 2020 |
| 16 | ROTO-ROOTER SERVICE CO. INC. | 2,368 | 60 | plumbing | May 2026 |
| 17 | ROBERT GOODMAN INC | 2,278 | 60 | plumbing | May 2026 |
| 18 | HATZEL & BUEHLER INC | 2,033 | 78 | addition, electrical | Apr 2026 |
| 19 | Aqueduct Fire Protection Systems, LLC | 2,020 | 60 | addition, new_construction | Apr 2026 |
| 20 | PLUMB-TECH LLC | 1,991 | 61 | plumbing | May 2026 |
| 21 | P & L PLUMBING INC | 1,928 | 36 | — | Dec 2009 |
| 22 | DR BUILDERS 35 LLC | 1,913 | 60 | addition, new_construction, plumbing | May 2026 |
| 23 | Baldwin Electrical Construction LLc | 1,832 | 60 | electrical | May 2026 |
| 24 | EAGLE ELECTRICAL CONSTRUCTION CO INC | 1,575 | 60 | electrical | May 2026 |
| 25 | Reliable Fire & Mechanical, Inc. | 1,556 | 60 | addition, new_construction, plumbing | May 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 Philadelphia.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=PA&sort=score