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Hiring Tips

12 Red Flags When Hiring a NYC Contractor

A practical guide to spot scammers, verify licenses, and protect your renovation investment in New York City.

William Mizhquiri January 18, 2026 7 min read
12 Red Flags Covered
20+ Years of Experience
5 NYC Boroughs Served
Free Written Estimates
Hiring a licensed NYC contractor by Milan Design Construction
The Stakes Are High

Why This Guide Exists

Hiring the wrong contractor can cost you tens of thousands of dollars, months of delays, and serious legal problems. In NYC, where regulations are strict, the wrong choice is even more painful.

We've been a licensed New York contractor for 20+ years. We've also seen the damage unlicensed and bad contractors leave behind, when homeowners hire us to fix it.

Jump to the 12 Red Flags
The Basics

Why Hiring Licensed Matters in NYC

Legal Protection

Unlicensed contractors cannot pull DOB permits in NYC. If something goes wrong, you have less legal recourse and insurance is often worthless.

Building Access

Co-ops, condos, and rental buildings require contractor licenses and COIs before workers can enter. An unlicensed contractor can't get past the doorman.

Permit Authority

Only licensed contractors can legally do major work like interior remodeling, kitchen, or bathroom renovations and file with NYC DOB.

The 12 Warnings

Red Flags Every NYC Homeowner Should Know

If you spot any of these, pause and reconsider. Real licensed contractors don't do these things.

No License or Won't Show One

If a contractor avoids showing their NYC DCWP license, gives you an out-of-state one, or claims they don't need one — walk away.

Cash-Only, No Written Contract

Cash-only contractors are usually avoiding taxes, insurance, or licensing. Get everything in writing — scope, materials, timeline, warranty.

Lowest Bid by Wide Margin

Bids 30-50% below others are missing permits, materials, or labor. The cheapest contractor often becomes the most expensive in the end.

No Certificate of Insurance

Without COIs naming you or your building as additional insured, you can be held liable if workers get hurt on your property.

Plans to Skip DOB Permits

Stop work orders, penalties of $1,500-25,000, and insurance denial. Skipping permits is never a good idea in NYC.

Demands Large Upfront Payment

Standard NYC deposits are 10-30%. Demanding 50%+ upfront is a red flag. 100% upfront is a major red flag.

No References or Recent Projects

Legitimate NYC contractors have real recent projects, before-and-after photos, and references. Generic portfolios are warnings.

Vague Scope and Materials

Real contracts list materials by brand and model. Vague scopes like "install kitchen cabinets" leave room for lower-grade materials.

Pressure to Sign Immediately

Real contractors give you time to think and compare. 24-hour deadlines and "special prices that expire today" are sales gimmicks.

No Office or Real Phone Number

Cell-only contacts and PO Box addresses are red flags. Real NYC contractors have business addresses, phones, and verifiable websites.

Bad-Mouthing Other Contractors

Professionals talk about their own work. Trashing competition instead of explaining their approach is a confidence warning.

Won't Walk You Through Process

If they get impatient explaining permits, timeline, payments, and inspections — that's a major red flag. You deserve clarity.

Your 5-Step Verification

How to Verify a Real Licensed NYC Contractor

Five quick checks before you sign with anyone. Takes less than 30 minutes.

Verify NYC DCWP License

Check the contractor's Home Improvement Contractor license number on the NYC DCWP website. Free, takes 2 minutes.

Check LMP and LME Credentials

If plumbing or electrical work is needed, verify Licensed Master Plumber and Electrician licenses on NYC DOB websites separately.

Review Certificates of Insurance

Request current COIs for general liability and workers comp — naming you or your building as additional insured.

Get Three Written Estimates

Compare scope, materials by brand and model, permit fees, allowances, and timeline. Vague estimates are a red flag.

Visit a Recent Job Site

If the contractor has active work in your area, ask to visit. Quality of finish and crew professionalism tell you a lot.

Verified · Licensed · Insured

Need a Real NYC Contractor?

Milan Design Construction passes every one of the 12 checks. Licensed Master Plumber and Electrician on staff. Free written estimates.

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Common Questions

Hiring a NYC Contractor FAQs

01 What license do I need to verify for a NYC contractor?

NYC contractors need a DCWP Home Improvement Contractor license. Licensed Master Plumbers and Electricians have separate licenses through NYC DOB. Verify both on the appropriate NYC government websites for free.

02 How much should I pay upfront for a NYC renovation?

Standard NYC contractor deposits are 10-30% of the contract value. Progress payments follow construction milestones. Final 5-10% should be held as retainage until punch list and final inspection complete.

03 What insurance should my NYC contractor carry?

General liability insurance covers damage to your property and neighbors. Workers compensation covers worker injuries. Disability insurance is also required by NYC. Ask for current COIs naming you or your building as additional insured.

04 Should I get permits for a small NYC renovation?

Yes, for most work. Painting and minor cosmetic work do not need permits. Anything involving plumbing, electrical, walls, or structural changes does. A licensed contractor knows what your specific scope requires under NYC code.

05 Is the cheapest contractor bid usually a problem?

Often yes. Bids that come in 30-50% below others are typically missing scope, materials, or permits. The cheap contractor becomes the expensive one once change orders start. Get three bids and compare what is included.

06 How do I check NYC contractor reviews?

Check Google reviews, Yelp, Better Business Bureau, and DCWP records. Look for patterns in reviews, not isolated complaints. Verify the business has been around for at least a few years. Visit actual recent project sites if possible.

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