Deadbolt Installation

A standard doorknob lock alone provides almost no meaningful security. The latch bolt that retracts when you turn the knob sits only a fraction of an inch into the strike plate, making it vulnerable to a single kick or shimming attack. A properly installed single-cylinder or double-cylinder deadbolt drives a hardened steel bolt at least one inch into the door frame, distributing force across the entire frame rather than a single soft point. The difference in resistance is dramatic — and it is the reason that nearly every insurance company and building security guideline recommends a deadbolt as a minimum standard for any exterior door. In Chicago's older building stock, where doors and frames have shifted over decades of freeze-thaw cycles, correct installation alignment is especially critical. A deadbolt that binds, drags, or does not throw its full inch of bolt travel is only marginally better than no deadbolt at all.

Beyond the bolt itself, the quality of the strike plate and the length of the mounting screws determine whether the lock holds under real force. Our technicians routinely replace the short screws that come with off-the-shelf strike plates with 3-inch screws that anchor directly into the door's structural framing — a step that most DIY installations skip and that makes a measurable difference in kick resistance. We also assess the door frame condition on every visit; if we find a rotted or cracked jamb, we will tell you before we install anything, because a Grade 1 deadbolt in a failing frame still fails.

Not every door takes the same lock, and choosing the wrong type is a mistake that costs time and money to correct. For modern pre-bored steel and fiberglass doors, a cylindrical deadbolt — the classic round format — is the standard choice and fits the existing prep without additional cutting. For Chicago's abundant vintage wood doors, particularly those on greystones and coach houses built between 1900 and 1940, a mortise lock is often the correct answer. A mortise lock is a rectangular unit that sits inside a pocket routed into the edge of the door. It combines a deadbolt, a latch bolt, and often an auxiliary lock function into a single robust body. Mortise locks are harder to install but significantly stronger than cylindrical locks because the hardware is integrated into the door structure rather than surface-mounted. Our technicians are experienced with both new mortise lock installations and the replacement of worn antique mortise bodies with modern high-security equivalents that fit the same pocket.

Jimmy proof deadbolt installation is a third category that deserves specific attention, particularly for Chicago apartment doors and rental units where drilling a new bore hole is not practical or permitted by the lease. A jimmy proof deadbolt — sometimes called a rim lock or surface-mount deadbolt — mounts entirely on the interior face of the door and interlocks with a strike plate on the door frame using a rotating shackle. Because the bolt does not pass through the door, there is no wood to split around the cylinder, and the interlocking design makes it extremely resistant to prying. They are a popular and legitimate security upgrade for renters throughout the Andersonville and Ravenswood neighborhoods where multi-flat buildings are common and landlords may restrict permanent modifications.

Andersonville Chicago Locksmith operates as a fully mobile service: there is no storefront to drive to, no appointment window to wait for, and no upcharge for travel within the Chicago area. Our technicians arrive in fully stocked vehicles and carry the tools and hardware to handle all of the following in a single visit: single-cylinder deadbolt installation on wood doors, single-cylinder deadbolt installation on steel doors, double-cylinder deadbolt installation for glass-panel doors, mortise lock installation and body replacement, jimmy proof deadbolt installation for apartments and rental units, high-security deadbolt installation with pick-resistant and drill-resistant cylinders, keypad and smart deadbolt installation including Wi-Fi and Bluetooth models, deadbolt re-keying after a move or lost key, deadbolt strike plate reinforcement and frame repair, door alignment correction before lock installation, deadbolt installation on sliding door secondary locks, garage entry door deadbolt installation, door knob lock replacement combined with deadbolt upgrade, commercial-grade deadbolt installation on storefront doors, multi-point locking system installation on exterior doors, deadbolt installation on interior fire-rated doors, auxiliary deadbolt addition to existing single-lock doors, hinge-side security pin installation, Grade 1 ANSI deadbolt installation for rental properties, Grade 2 deadbolt installation for interior or secondary doors, antique mortise lock restoration and re-keying, master re-key services for landlords after tenant turnover, emergency lockout response with damage-free entry where possible, lock assessment and security consultation, and automotive locksmith services including car lockout response and ignition cylinder diagnosis. Whether the need is a residential upgrade, a commercial locksmith call for a Logan Square retail tenant, or a middle-of-the-night emergency locksmith response anywhere in Chicago, our team handles it. Call 773-900-5921 — we answer 24/7.

Our commercial locksmith work deserves a specific note. Chicago businesses face a security environment that differs meaningfully from residential properties. High-traffic storefronts, back-of-house delivery doors, and shared-building vestibules all experience far more daily cycling than a residential front door, and consumer-grade deadbolts fail quickly under that use. We install commercial-grade deadbolts and mortise lock bodies rated for heavy use, paired with reinforced strike plates and anti-saw pins, on everything from Wicker Park boutiques to Andersonville restaurant back doors. We also work with property managers overseeing multi-unit buildings — coordinating master key systems so that a single key hierarchy covers common areas, individual units, and building entrances without requiring every tenant to carry a ring of keys.

How much does a locksmith cost in Chicago? It is one of the most common questions we receive, and the honest answer is that the final price depends on several specific factors: the type of lock being installed (a basic cylindrical deadbolt versus a mortise lock or smart lock involves different amounts of labor and hardware cost), the condition of the existing door and frame (additional work like strike plate reinforcement or frame repair affects the total), the time of day (emergency locksmith calls outside standard hours reflect the cost of 24/7 staffing), and travel distance within the service area. How much should locksmiths charge, and how much should an emergency locksmith cost? Legitimate locksmiths provide a clear, itemized quote before beginning work — that is exactly what we do. We confirm an exact up-front price on every call, before any tools come out, and we do not add fees after the job is done. There are no surprises on the invoice. If the scope changes — for example, if we open the door and discover the frame needs reinforcement — we discuss it with you before proceeding.

How to find a reputable locksmith in Chicago is a question worth answering carefully. Look for a service that arrives in a marked vehicle, carries identification, and provides a written or verbal itemized quote before starting work. Ask whether the technicians are insured — ours are. Ask whether they will do damage-free entry on lockout calls where possible — ours will. Be cautious of any service that gives a firm price over the phone without knowing the lock type or door condition; that price almost never reflects the final bill. Andersonville Chicago Locksmith is locally operated, serves the Chicago area from a base in the Andersonville neighborhood, and has technicians familiar with the specific door hardware common in Chicago's vintage building stock. For a straightforward, transparent deadbolt installation experience, call 773-900-5921 anytime — day or night, seven days a week.