Door Knob & Deadbolt Installation

Replacing or upgrading a door knob lock sounds straightforward until you open the door and find a 1940s Brooklyn brownstone mortise lock pocket inside a three-inch-thick door jamb. Modern residential hardware — cylindrical knobsets, lever sets, handlesets, and Grade 1 deadbolts — is designed for standard door prep, but older Brooklyn buildings frequently require mortise lock units, which are recessed into the door body itself and require precise chiseling, alignment, and strike plate fitting to work correctly. Our technicians know both worlds and carry stock for both on the truck. When we arrive, we assess the existing prep, measure the backset and cross-bore dimensions, confirm the door thickness and material — wood, metal, or fiberglass — and then recommend hardware that actually fits rather than forcing a mismatch. Installation is done cleanly, without unnecessary damage to your door or frame, using the correct tools for the job.

For tenants and landlords, we also handle keyed-alike setups, master key systems, and re-keying existing cylinders so old keys no longer work. If you manage multiple units in a Brooklyn multi-family building, that last service alone can save considerable cost when a tenant moves out. We document which keys go to which cylinder and hand everything over with clear instructions. Our commercial locksmith services extend this to office suites, retail storefronts, and shared-access spaces, where higher-security grades of hardware are the right call.

Getting locked out on a cold February night on Flatbush Avenue is not the moment to be reading reviews or comparing service providers online. That is exactly why our emergency locksmith team operates 24 hours a day, seven days a week, with mobile units staged to reach Brooklyn Heights, Cobble Hill, Prospect Heights, Crown Heights, and surrounding neighborhoods quickly. When you call 718-841-7588, you speak with a real person who gathers your address and lock situation and dispatches a technician with the right tools for your specific hardware. We verify ownership or tenancy before any work begins — that step protects you as much as it protects the property.

How much does a locksmith cost in Brooklyn, or more specifically, how much does an emergency locksmith cost near me? That is the question we hear most often, and the honest answer is that several factors shape the final number: the type of lock or hardware involved, whether parts need to be sourced for a specialized mortise lock or high-security cylinder, the time of day — overnight and weekend calls carry different logistics than a standard weekday appointment — and travel distance to your address. How much do locksmiths charge on average across the industry varies widely because service scope varies widely. What we commit to is this: before any work starts, we state the exact price out loud and in writing on your invoice, and we do not add surprise charges after the fact. Asking who is an affordable locksmith in Brooklyn or who is the cheapest locksmith often leads people toward providers who tack on hidden fees at the door — we compete on transparency, not on teaser rates.

A cookie-cutter suburban subdivision uses standard 2-3/8 or 2-3/4 inch backset cylindrical locks on hollow-core doors with aluminum frames. Brooklyn is different. Pre-war limestone townhouses in Brooklyn Heights have solid wood doors three inches thick with original mortise lock pockets. Newer high-rise condos in Downtown Brooklyn use narrow-stile aluminum or glass doors requiring specialty locks. Rent-stabilized apartments in Crown Heights often have decades of layered hardware — a rim lock on top of an old mortise case with a separate chain inside. Our technicians have worked across all of these scenarios and understand that measuring twice, choosing the right hardware, and fitting it correctly the first time is what actually protects a Brooklyn home or business. We are not swapping parts on identical production homes; we are solving real, varied security puzzles in one of the most architecturally diverse urban environments in the country.

If you are planning a scheduled installation rather than responding to an emergency, a few steps help the job go smoothly. First, know whether your door is pre-hung with standard boring or whether it has a mortise pocket — a quick photo of the interior edge of the door and the existing hardware sent to us before the visit helps our technician arrive with the right parts. Second, if you are a renter, confirm with your landlord in writing that you have approval for the hardware change — New York City tenant law has specific rules about lock installation rights and key provision obligations, and we want your installation to be fully above board. Third, think about what you actually need: a door knob with lock for a bedroom is a very different product from a Grade 1 exterior deadbolt, and getting the right grade for the right application saves money and improves security. Our technicians are happy to consult on the phone before the visit so you have a clear picture of what to expect. When in doubt, call 718-841-7588.