The 25 contractors pulling the most building permits in Philadelphia, ranked by PermitStack's activity score — built from 927,209 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | 1 800 HEATERS INC | 9,444 | 83 | addition, hvac, interior_remodel | Jul 2026 |
| 2 | BEST CHOICE PLUMBING, LLC | 6,546 | 90 | addition, demolition, mechanical | Jul 2026 |
| 3 | MR D'S PLUMBING & HEATING | 5,850 | 61 | plumbing | Jul 2026 |
| 4 | B. M. CONSULTING SERVICES INC. | 5,757 | 61 | addition, fire_alarm, interior_remodel | Jul 2026 |
| 5 | SHEGDA CONSTRUCTION CORP | 4,569 | 61 | addition, new_construction, plumbing | Jul 2026 |
| 6 | Oliver Sprinkler Co., Inc. | 4,397 | 82 | addition, electrical, fire_alarm | Jul 2026 |
| 7 | BILL FRUSCO PLUMBING & HEATING | 4,122 | 61 | addition, plumbing | Jul 2026 |
| 8 | ONEIDA FIRE PROTECTION INC | 3,642 | 61 | addition, fire_alarm, interior_remodel | Jul 2026 |
| 9 | ROTO ROOTER SERVICES COMPANY | 3,033 | 97 | addition, electrical, foundation | Mar 2020 |
| 10 | PosiGen Provider LLC | 2,991 | 56 | electrical | Aug 2025 |
| 11 | LOR-MAR MECHANICAL SERVICES | 2,866 | 61 | addition, new_construction, plumbing | Jul 2026 |
| 12 | JACK EDMONDSON, INC. | 2,846 | 61 | addition, plumbing | Jul 2026 |
| 13 | AL-KAUN CO | 2,784 | 61 | addition, new_construction | Jul 2026 |
| 14 | GENERATION 3 ELECTRIC INC | 2,486 | 61 | addition, electrical, new_construction | Jul 2026 |
| 15 | ROTO-ROOTER SERVICE CO. INC. | 2,424 | 80 | addition, interior_remodel, plumbing | Jul 2026 |
| 16 | GUARANTEED PLUMBING INC | 2,405 | 97 | interior_remodel, plumbing | Mar 2020 |
| 17 | ROBERT GOODMAN INC | 2,300 | 76 | plumbing, renovation | Jul 2026 |
| 18 | Aqueduct Fire Protection Systems, LLC | 2,065 | 61 | addition, fire_alarm, new_construction | Jul 2026 |
| 19 | HATZEL & BUEHLER INC | 2,059 | 90 | addition, electrical, fire_alarm | Jul 2026 |
| 20 | PLUMB-TECH LLC | 2,014 | 82 | mechanical, plumbing | Jul 2026 |
| 21 | DR BUILDERS 35 LLC | 1,932 | 61 | addition, new_construction, plumbing | Jul 2026 |
| 22 | P & L PLUMBING INC | 1,928 | 54 | plumbing | Dec 2009 |
| 23 | Baldwin Electrical Construction LLc | 1,864 | 60 | electrical | Jun 2026 |
| 24 | EAGLE ELECTRICAL CONSTRUCTION CO INC | 1,680 | 61 | electrical | Jul 2026 |
| 25 | Reliable Fire & Mechanical, Inc. | 1,582 | 78 | addition, new_construction, plumbing | Jul 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