Door Knob & Deadbolt Installation

Not every door in your home or business needs the same level of protection, and part of our job as your local locksmith is helping you match the right hardware to each opening. A standard door knob with lock — sometimes called a keyed-entry knob — is perfectly appropriate for interior doors like bedrooms, bathrooms, and office spaces where privacy matters more than high-security resistance. For exterior doors, however, a knob lock alone is not enough; the latch bolt on most knob sets can be defeated far too easily, which is why building codes and insurance carriers almost universally require a secondary deadbolt on any door that opens to the outside.

Deadbolts come in single-cylinder, double-cylinder, and Jimmy-proof configurations. Single-cylinder models, operated by a key outside and a thumb-turn inside, are the most common choice for residential front doors. Double lock door knob and deadbolt combinations — where a key is required on both sides — are sometimes requested for doors with glass panels nearby, but they raise an important fire-egress question that our technicians will walk you through before installation. For commercial properties along the Port Chester business district or mixed-use buildings near the waterfront, a heavy-duty mortise lock is often the most appropriate choice; it integrates the latch, deadbolt, and sometimes a privacy function into a single steel case mortised directly into the door edge, giving you strength that surface-mounted hardware simply cannot match.

The mortise lock is the workhorse of commercial and upscale residential security, and it is one of our most requested installation services for Port Chester business owners and property managers. Unlike a cylindrical lock that sits in a bored hole, a mortise lock body is set into a precisely cut pocket in the door stile. That means the bolt and latch assembly is surrounded by door material on all sides — dramatically increasing kick-in and pry resistance. Our technicians are experienced with the full range of mortise hardware including Grade 1 Schlage and Kwikset commercial lines, and we carry the specialized chisels and routing tools needed to cut a clean mortise pocket without splitting or cracking your door stile.

For residential customers who want deadbolt protection beyond a standard Grade 2 unit, we recommend looking at Grade 1 deadbolts with hardened steel inserts in the bolt, ANSI-rated strike plates, and anti-pick, anti-bump cylinders. We also install Mul-T-Lock and Medeco cylinders for customers who want restricted keyways — meaning keys cannot be duplicated at a hardware store without authorization. If you are a property manager and key control has become an issue across multiple units, restricted-keyway systems combined with a master key setup can solve that problem cleanly. Call 914-252-3154 to talk through the options; we are available 24/7 and will come to your property for a no-obligation assessment.

More Port Chester homeowners and landlords are moving toward a smart lock door knob or keypad lock door knob setup, and for good reason. Keypad and smart locks eliminate the cost and hassle of rekeying when a tenant moves out, let you assign temporary access codes for housekeepers or contractors, and — in the case of Wi-Fi and Bluetooth-enabled models — let you lock or unlock your door remotely from a phone app. Our technicians install and configure a wide range of smart and keypad hardware from brands including Schlage Encode, Kwikset Halo, and Yale, ensuring the device is correctly aligned, the backset matches your door prep, and the connectivity is tested before we leave.

One important distinction to understand: a smart lock door knob replaces the knob or lever and the lock cylinder but does not automatically add deadbolt strength. For exterior doors we strongly recommend pairing any smart knob set with a high-quality deadbolt — either a traditional keyed deadbolt or a compatible smart deadbolt from the same platform so both devices share one app. For interior applications like a door knob with lock for bedroom use, a standalone keypad or smart knob is often all you need. Our team will assess your specific door — thickness, backset, cross-bore diameter, and latch faceplate dimensions — before recommending hardware so you are not paying for a product that will not fit or perform on your particular door.

We are frequently asked about the typical costs of locksmith services, and the honest answer is that price varies based on several real factors: the type and grade of hardware being installed (a standard Kwikset deadbolt versus a Schlage Grade 1 mortise lock are very different jobs), whether the door already has a proper bore or requires new drilling, the time of day the work is needed, and the travel distance to your location within the Port Chester area. Emergency locksmith calls — requested late at night or on holidays — may carry a different rate than a scheduled daytime installation. Parts cost also varies depending on whether you supply your own hardware or we source it for you.

What we commit to in every case is transparency: before our technician touches your door, you will receive a clear, itemized price for the complete job. No work starts until you have approved that number. We do not quote one price on the phone and present a different invoice at the end. We also carry a broad inventory of lock hardware in our service vehicles, which means most installations happen in a single visit — important when you are standing at a property on Willett Avenue at 11 p.m. and need a functioning lock before you leave. Port Chester Locksmith Services operates 24/7, and our technicians are trained and insured, so you are protected whether it is a routine upgrade or an after-hours emergency. Contact us at 914-252-3154 any time to get your up-front quote.