The 25 contractors pulling the most building permits in Ottawa, ranked by PermitStack's activity score — built from 8,370 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | ALPHA ROOFING | 573 | 97 | renovation, roofing | Aug 2026 |
| 2 | ROOFTOP CONSTRUCTION LLC | 207 | 75 | roofing | Jul 2026 |
| 3 | KG Excavating Service Inc | 196 | 72 | demolition, plumbing | Aug 2026 |
| 4 | REEVE ROOFING & CONSTRUCTION LLC | 190 | 74 | interior_remodel, new_construction, roofing | Jun 2026 |
| 5 | EATON ROOFING & EXTERIORS, INC | 146 | 72 | roofing | Jun 2026 |
| 6 | CAREY PLUMBING LLC. | 143 | 77 | addition, electrical, grading | Jul 2026 |
| 7 | GROSS PLUMBING, INC. | 142 | 76 | hvac, interior_remodel, new_construction | Jul 2026 |
| 8 | ADAMSON BROTHERS INC | 133 | 74 | addition, electrical, interior_remodel | Jul 2026 |
| 9 | PAGE ROOFING | 133 | 54 | roofing | Mar 2023 |
| 10 | ADVANCED PROPERTY IMPROVEMENTS LLC | 129 | 71 | addition, demolition, fence | Jul 2026 |
| 11 | RAPID ROOFING CO | 123 | 91 | addition, interior_remodel, new_construction | May 2026 |
| 12 | AA DRAIN MEDIC INC. | 89 | 54 | foundation, interior_remodel, plumbing | Aug 2023 |
| 13 | PORTER PLUMBING LLC | 86 | 88 | electrical, interior_remodel, mechanical | Feb 2026 |
| 14 | Kane Plumbing | 84 | 68 | addition, plumbing | Jul 2026 |
| 15 | Mid Kansas Exteriors, Inc | 82 | 45 | roofing | May 2019 |
| 16 | 5-STAR ROOFING | 80 | 44 | roofing | Oct 2018 |
| 17 | WOOGE ELECTRIC | 72 | 69 | addition, demolition, electrical | Jul 2026 |
| 18 | CLAYTON & SON CONSTRUCTION, LLC | 64 | 66 | addition, demolition, fence | Jun 2026 |
| 19 | GIBSON ELECTRIC LLC | 63 | 100 | addition, demolition, electrical | Mar 2026 |
| 20 | H&H ROOFING & RESTORATION LLC | 52 | 66 | new_construction, roofing | Jun 2026 |
| 21 | COLTON WAYMIRE LLC | 46 | 63 | addition, fence, interior_remodel | Oct 2025 |
| 22 | Midwest Sign Company, LLC | 45 | 80 | addition, electrical, foundation | Jul 2026 |
| 23 | EAGLE HEART CONSTRUCTION | 43 | 45 | fence, renovation, roofing | Feb 2023 |
| 24 | DALTON'S HEATING AND COOLING | 42 | 66 | addition, electrical, interior_remodel | Aug 2026 |
| 25 | Advantage Electric LLC | 39 | 99 | addition, demolition, electrical | Jun 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 Ottawa.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=KS&sort=score