The 25 contractors pulling the most building permits in Guilford, ranked by PermitStack's activity score — built from 17,536 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | J.J. Sullivan, Inc. | 81 | 68 | hvac, mechanical, plumbing | Jul 2026 |
| 2 | NATIONAL ROOFING CO INC | 55 | 81 | mechanical, renovation, roofing | Apr 2026 |
| 3 | Trinity Solar Inc | 30 | 100 | battery, electrical, interior_remodel | Jul 2026 |
| 4 | LC ELECTRIC INC | 23 | 85 | electrical, fire_alarm, hvac | Jul 2026 |
| 5 | JM Edwards Electric LLC | 23 | 61 | electrical, hvac | Jul 2026 |
| 6 | Green Power Energy | 22 | 94 | electrical, solar | Jul 2026 |
| 7 | Aegis Solar Energy | 22 | 82 | solar | Jul 2026 |
| 8 | Brite-Rite Electrical Services | 22 | 59 | electrical, hvac | Jul 2026 |
| 9 | STANDARD OIL OF CONNECTICUT INC | 19 | 59 | hvac, mechanical, plumbing | Jul 2026 |
| 10 | Venture Home Solar, LLC. | 18 | 100 | electrical, ev_charger, hvac | Aug 2026 |
| 11 | EAST GUILFORD CONSTRUCTION INC | 18 | 61 | hvac, interior_remodel, mechanical | Jul 2026 |
| 12 | EARTHLIGHT TECHNOLOGIES LLC. | 17 | 100 | addition, interior_remodel, roofing | Feb 2026 |
| 13 | PE ELECTRIC | 16 | 82 | electrical, hvac, plumbing | Jul 2026 |
| 14 | GROUNDWORKS INC. | 15 | 93 | addition, electrical, fence | Jul 2026 |
| 15 | QUALITY MECHANICAL INC | 14 | 87 | demolition, fence, hvac | Jul 2026 |
| 16 | Heritage Systems, Inc | 14 | 58 | roofing | Jul 2026 |
| 17 | Wilcox Energy | 14 | 56 | hvac, mechanical, plumbing | Jul 2026 |
| 18 | Aiello Home Services | 14 | 54 | electrical, hvac, plumbing | Mar 2026 |
| 19 | Amodio & Sons, Inc | 13 | 56 | hvac, mechanical | Jul 2026 |
| 20 | R&B REFRIGERATION INC | 12 | 57 | hvac | Jun 2026 |
| 21 | POLO PLUMBING & HEATING LLC | 12 | 55 | plumbing | Jul 2026 |
| 22 | Quality Associates Inc. | 12 | 38 | new_construction, plumbing | Jul 2026 |
| 23 | Aegis Electrical Systems | 11 | 98 | solar | Jul 2026 |
| 24 | Experior Roofing | 11 | 58 | roofing | Jul 2026 |
| 25 | DiGiorgi Roofing & Siding | 11 | 56 | addition, pool, renovation | 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 Guilford.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CT&sort=score