Expert Mercedes Lost Car Keys

Car Key Locksmith is a mobile automotive locksmith with one focus: showing up quickly and doing the job right. For lost car key replacement, that means making a brand-new working key when every key is gone — even with no spare and no original to copy, with a firm price agreed before we start.

Neighbors in Bellmore and Oyster Bay call us for the same work, so a technician is rarely far away.

Local Coverage

Based in Hewlett, we cover Nassau County, much of Suffolk County and Queens. Check your town on our service area page.

Getting a Quote

We keep pricing simple and upfront. It depends on:

• Whether the car needs its immobilizer module accessed to program an all-keys-lost key
• The make — some European systems take extra equipment and time
• The type of key: basic transponder, remote-head, flip key or push-to-start smart key

Call (516) 750-0433 for an exact quote — it takes a minute. Call (516) 750-0433 with your year, make and model for an exact quote. It is usually less than the dealer, and there is no tow to pay for.

From Call to Done

Most calls follow the same simple pattern:

1. Call (516) 750-0433 with your location, the year, make and model, and whether any key still exists.
2. We quote the job and give you an arrival window.
3. On site we verify ownership, then cut the new key and program it to the car.
4. We erase the lost keys from the car's memory where possible and test everything with you.
5. We leave you our number in case anything else comes up.

Everything We Handle

• The lost key erased from the car's memory where supported, so it can't start the car if someone finds it
• Work done at your car — at home, at work or at the roadside
• Remote functions paired: lock, unlock, trunk and panic
• A new key originated from the VIN or by decoding your door lock — no original needed

Other Services We Offer

Besides lost car key replacement, our Nassau County technicians handle:

• Remote repair and car key repair, often far cheaper than a new key
• Honda laser cut keys and Acura keys cut and programmed
• Toyota and Lexus laser cut keys and smart keys
• Commercial door lockouts for offices and storefronts
• Car lockout and auto lockout service — damage-free entry, usually within the hour
• Lost car keys, no spare? A new key made from the VIN, right at the car

Our Story

Car Key Locksmith has been a mobile locksmith since 2001, based in Hewlett and working across Nassau County, Long Island and Queens. Over more than two decades we have seen just about every car key problem there is.

Why We're Different

• Usually cheaper and faster than the dealer
• 24/7 emergency service — a real person answers day and night, weekends and holidays
• Weekends and holidays included, at the price we quote
• Most makes and models covered, from basic keys to smart keys
• Local technicians who know Long Island roads and neighborhoods
• Licensed, insured technicians you can trust