The 25 contractors pulling the most building permits in Guilford, ranked by PermitStack's activity score — built from 17,102 permits on file. Updated from live public records.
| # | Contractor | Permits | Score | Top trades | Last permit |
|---|---|---|---|---|---|
| 1 | J.J. Sullivan, Inc. | 74 | 66 | hvac, mechanical, plumbing | Jun 2026 |
| 2 | NATIONAL ROOFING CO INC | 54 | 78 | renovation, roofing | Apr 2026 |
| 3 | Trinity Solar Inc | 28 | 100 | battery, electrical, interior_remodel | Jun 2026 |
| 4 | Green Power Energy | 21 | 91 | electrical, solar | Nov 2025 |
| 5 | Aegis Solar Energy | 21 | 81 | solar | Apr 2026 |
| 6 | LC ELECTRIC INC | 21 | 78 | electrical, hvac, interior_remodel | Jun 2026 |
| 7 | JM Edwards Electric LLC | 20 | 60 | electrical, hvac | Jun 2026 |
| 8 | STANDARD OIL OF CONNECTICUT INC | 17 | 59 | hvac, mechanical, plumbing | Jun 2026 |
| 9 | Brite-Rite Electrical Services | 17 | 58 | electrical, hvac | Jun 2026 |
| 10 | EARTHLIGHT TECHNOLOGIES LLC. | 16 | 100 | interior_remodel, roofing, solar | Feb 2026 |
| 11 | EAST GUILFORD CONSTRUCTION INC | 15 | 60 | hvac, interior_remodel, mechanical | Jun 2026 |
| 12 | Aiello Home Services | 14 | 54 | electrical, hvac, plumbing | Mar 2026 |
| 13 | GROUNDWORKS INC. | 13 | 87 | addition, electrical, fence | Jun 2026 |
| 14 | PE ELECTRIC | 13 | 81 | electrical, hvac, roofing | Jun 2026 |
| 15 | Venture Home Solar, LLC. | 12 | 100 | electrical, ev_charger, hvac | Apr 2026 |
| 16 | QUALITY MECHANICAL INC | 12 | 86 | fence, hvac, interior_remodel | Jun 2026 |
| 17 | R&B REFRIGERATION INC | 12 | 57 | hvac | Jun 2026 |
| 18 | Amodio & Sons, Inc | 12 | 55 | hvac, mechanical | Jun 2026 |
| 19 | POLO PLUMBING & HEATING LLC | 11 | 55 | plumbing | May 2026 |
| 20 | Wilcox Energy | 11 | 54 | hvac, plumbing | Jun 2026 |
| 21 | L&M Electric Co. | 10 | 74 | electrical, new_construction | Apr 2026 |
| 22 | DiGiorgi Roofing & Siding | 10 | 55 | addition, pool, renovation | Apr 2026 |
| 23 | Aegis Electrical Systems | 9 | 98 | solar | Nov 2025 |
| 24 | AHD Holdings LLC | 9 | 58 | addition, interior_remodel, plumbing | Jun 2026 |
| 25 | Onofreo Home Comfort Systems, LLC. | 9 | 56 | hvac, mechanical | 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 Guilford.
Query contractors, scores, and permits programmatically — GET /v1/contractors/search?state=CT&sort=score