The 25 contractors pulling the most building permits in Troy, ranked by PermitStack's activity score — built from 257,786 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | WALLSIDE WINDOW INC | 2,173 | 85 | interior_remodel, renovation | Aug 2026 |
| 2 | PROFESSIONAL RENOVATION SERVICES | 1,478 | 83 | addition, electrical, hvac | Oct 2022 |
| 3 | 1-800-HANSONS LLC | 722 | 94 | addition, interior_remodel, plumbing | Sep 2026 |
| 4 | MONDRIAN BUILDING LLC | 586 | 83 | addition, demolition, electrical | Sep 2026 |
| 5 | Foundation Systems of Michigan | 526 | 90 | battery, demolition, electrical | Sep 2026 |
| 6 | ROBERTSON NORTHWYCK LLC | 373 | 56 | demolition, electrical, fence | Feb 2008 |
| 7 | THE SIGN CHAP INC | 363 | 38 | electrical, interior_remodel, pool | Mar 2023 |
| 8 | WEATHERGARD WINDOW CO. INC. | 320 | 78 | interior_remodel, renovation, roofing | Sep 2026 |
| 9 | MAJIC WINDOW COMPANY | 315 | 79 | interior_remodel, plumbing, renovation | Sep 2026 |
| 10 | POWER HOME REMODELING GROUP LLC | 265 | 100 | addition, electrical, fence | Sep 2026 |
| 11 | MIDTOWN SQUARE DEV CO LLC | 254 | 54 | electrical, new_construction | Sep 2004 |
| 12 | GFA DEVELOPMENT INC | 250 | 79 | demolition, electrical, fence | Oct 2026 |
| 13 | MR ROOF ANN ARBOR LLC | 250 | 76 | new_construction, renovation, roofing | Sep 2026 |
| 14 | OAK ELECTRIC SERVICE INC | 239 | 78 | battery, electrical, ev_charger | Aug 2026 |
| 15 | SYNERGY GROUP | 214 | 75 | addition, battery, demolition | Jan 2026 |
| 16 | KEARNS BROTHERS INC | 211 | 76 | addition, demolition, hvac | Sep 2026 |
| 17 | MCLEAN CONSTRUCTION, INC | 209 | 81 | addition, electrical, ev_charger | Aug 2026 |
| 18 | D & S SERVICE | 209 | 53 | electrical, hvac, mechanical | Sep 2026 |
| 19 | ROBERTSON MEADOWS LLC | 201 | 72 | new_construction, plumbing, sign | Jul 2025 |
| 20 | GENESIS CONSTRUCTION INC | 197 | 98 | addition, demolition, electrical | Jul 2024 |
| 21 | ROYAL OAK HEATING & COOLING | 197 | 68 | electrical, hvac, interior_remodel | Apr 2026 |
| 22 | ROBERTSON VILLAGE OF TROY LLC | 185 | 75 | interior_remodel, new_construction, plumbing | Mar 2026 |
| 23 | FRIEDMAN CONSTRUCTION & DESIGN | 170 | 52 | demolition, electrical, interior_remodel | Jul 2018 |
| 24 | AMERICAN STANDARD ROOFING INC | 169 | 79 | interior_remodel, roofing | Jun 2026 |
| 25 | HOME DEPOT USA INC | 166 | 100 | addition, demolition, electrical | Sep 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 Troy.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=MI&sort=score