Hiring
How to choose a licensed sidewalk contractor on Long Island: 7 things to check
License number, insurance certificate, DPW experience, ADA training — the 7 trust signals every Long Island property owner should verify before hiring.
Hiring the wrong sidewalk contractor on Long Island costs you twice — first when the work fails, and again when the town issues a violation for the unpermitted job. Here are the seven trust signals every Nassau or Suffolk property owner should verify before signing a contract.
1. License number — and which authority issued it
Nassau County requires a Home Improvement License (HIL) issued by the Office of Consumer Affairs. Suffolk County requires a separate Home Improvement License through the Suffolk Department of Consumer Affairs. Town and village work for commercial scopes often requires additional registration.
Ask for the actual license number — not just 'licensed.' Verify it on the Nassau or Suffolk consumer affairs site before you sign.
2. Certificate of insurance naming you as additional insured
At minimum: $1M general liability, workers comp, and auto. For commercial and HOA work, look for $2M GL. The certificate should name your property or HOA as additional insured — not just list the contractor as insured.
3. Nassau and Suffolk DPW experience
Right-of-Way work on Nassau County roads requires Nassau DPW permitting. Suffolk County roads require Suffolk DPW. Town roads route through the local highway department. A contractor who has never pulled these permits will quote you a job they can't legally execute.
4. ADA training and documentation
Every new or replacement curb ramp on a public sidewalk must meet ADAAG standards — slope ≤ 8.33%, cross-slope ≤ 2.083%, detectable warning surface. Ask if the contractor measures and documents these tolerances. If they shrug, walk away.
5. Written estimate with permit fees itemized
A real Long Island sidewalk estimate breaks out: square footage, mix design (4000 PSI minimum), demo, base prep, joints, ROW permit fee, ADA compliance scope, mobilization. If the estimate is one number on one line, you have no way to verify what you're paying for.
6. References from your town
Ask for three references in the same town — Hempstead, Oyster Bay, Babylon, Islip, whichever applies. Town-specific references prove the contractor knows your local permit process and inspector preferences.
7. Written warranty on materials and workmanship
Standard for residential sidewalk: 1-year workmanship, manufacturer's warranty on materials. For commercial: 2-year workmanship is normal. Anything less than 1 year is a red flag.
Free estimate · permits handled · licensed crews
Tell us the property, town, and scope — we'll quote it, pull the permit, and schedule the pour. Most Nassau and Suffolk jobs scheduled within 7–14 days.