Door Knob Lock Replacement
A loose or failed door knob lock is more than a nuisance — it's a gap in your home's first line of defense. Whether the cylinder is spinning freely, the latch isn't catching, or the knob wiggles so badly the door barely stays shut, these are signs the hardware has reached the end of its service life. Wake County Locksmith sends trained, insured technicians directly to your door anywhere across Wake County — no shop drop-off, no waiting. If you're in Apex near the busy Beaver Creek Crossings corridor or tucked into a quieter neighborhood off Laura Duncan Road, we know the area and we'll be there fast.
Open 24 hours, 7 days a week · Licensed, bonded & insured

Our mobile locksmith team handles door knob lock replacement as a core, everyday service — not an afterthought. We stock a range of quality hardware from trusted brands like Schlage and Kwikset, and we'll help you choose the right grade and style before a single screw is turned. The goal is always a damage-free installation that looks factory-fitted and holds up for years. Call (919) 341-2147 any time — we answer 24/7.
What we do
Available 24/7
Day, night, weekends and holidays — a real local locksmith answers and rolls a fully-stocked van.
Fast local response
Based in Apex, we reach Wake County and surrounding communities in well under an hour.
Insured & background-checked
Vetted technicians, up-front pricing, and no surprise add-ons when we arrive.
Damage-free entry
We pick and bypass locks the right way, so most lockouts are solved without drilling anything.
More about our work
Everything you need to know about how we help — at a glance.
Signs It's Time for a Door Knob Lock Replacement
Not every failing lock announces itself dramatically. Sometimes the key starts sticking more than usual, or the knob requires a hard yank before the latch releases. Other times a door knob with lock suddenly feels sloppy — the cylinder turns a fraction before engaging, or the entire assembly wobbles on the door face. These are mechanical fatigue signs, and patching around them rarely works long-term. A worn-out knob lock can compromise a mortise lock or deadbolt installed above it because a determined push on a loose knob can still manipulate the latch bolt, especially on older door frames common in Apex's established subdivisions like Haddon Hall or Shepards Vineyard.
Specific failure patterns to watch for: a key that turns but doesn't retract the latch; a knob that spins freely in one direction (broken cam or tailpiece inside); visible corrosion on the face plate or keyway; a knob that pulls away from the rose plate on the door face; and a latch that no longer spring-returns after release. Any one of these means the internal mechanism is failing. Our technicians diagnose the exact failure point on-site so the replacement is targeted and correct — not a guess.
Door Knob Lock Replacement and Mortise Lock Services We Perform
Wake County Locksmith handles a wide range of residential hardware needs from a fully stocked mobile unit. Below is a representative list of the specific services our skilled technicians perform every day across Apex and the surrounding Wake County area: 1. Keyed door knob lock replacement on front, back, and side entry doors 2. Interior door knob with lock for bedroom and bathroom privacy sets 3. Double lock door knob installation for enhanced entry-point security 4. Knob lock rekeying to match existing house keys after a move-in 5. Mortise lock body replacement on older Apex craftsman and colonial-style doors 6. Mortise lock cylinder swap without replacing the full lock body 7. Deadbolt-plus-knob lock combination upgrades for patio entries 8. Sliding door lock replacement on patio and French door track systems 9. Emergency locksmith response for locked-out situations at any hour 10. Commercial locksmith service for small offices, suites, and retail storefronts 11. Lock-grade upgrading from builder-grade to ANSI Grade 1 hardware 12. Schlage and Kwikset knob lock installation and setup 13. Smart lock conversion — replacing a keyed knob with a keypad or Bluetooth unit 14. Lock-out service for door knob with lock and key failures mid-turn 15. Strike plate realignment and reinforcement alongside new lock installation 16. Door frame repair prep before new lock installation to ensure proper fit 17. Multi-point latch system inspection on steel entry doors 18. Knob lock removal and hole-plug patching when upgrading to a lever handle 19. Rekey services following a lost key or after a tenant change 20. High-security cylinder upgrades into existing knob lock housings 21. Privacy lock installation for home offices and nurseries 22. Passage knob removal and blank-plate installation on unused doors 23. Lock lubrication and mechanical service extending hardware lifespan 24. Door viewer (peephole) installation alongside new knob lock work 25. Post-break-in re-hardware service — full lock replacement after forced entry 26. Key duplication for newly installed hardware before we leave the site 27. Emergency locksmith dispatch for storm-warped doors that trap locks
Mortise Locks, Knob Locks, and Which One Your Door Actually Needs
Many Apex homeowners are surprised to learn their front door may already have a mortise lock body hidden inside the door edge — a rectangular pocket mechanism that controls both a latch and a deadbolt from a single unit. Mortise locks were standard in homes built before the 1970s and are still common on solid-wood doors in older parts of town near downtown Apex's historic district. When a mortise lock fails, replacing just the visible knob or lever won't fix it — the internal lock body needs to be addressed. Our technicians are trained specifically in mortise lock diagnosis and replacement, which requires more precise door-edge work than a standard cylindrical knob lock swap.
For newer construction, the cylindrical knob lock (the style with a circular hole bored through the door face) is the norm, and that's where most day-to-day replacement requests come from. The right choice between a knob lock, lever handle, or mortise lock system depends on door thickness, bore pattern, security grade needed, and whether the door sees heavy traffic. We'll assess your specific door on-site and walk you through the options without pressure. If you're ready for that conversation now, call (919) 341-2147 — we answer 24/7 and can often reach Apex addresses within the hour.
What Determines the Cost of a Locksmith Door Knob Lock Replacement in Apex NC?
Pricing for a door knob lock replacement — or any locksmith service — isn't one-size-fits-all, and anyone quoting you a flat number over the phone without knowing your specifics isn't being fully transparent. The factors that shape your final price include: the type and grade of lock hardware required (a builder-grade knob lock costs less than a high-security mortise lock body with a new cylinder); the complexity of the installation (a standard cylindrical bore vs. a mortise pocket cut); the time of day (emergency locksmith calls outside regular hours reflect the cost of 24/7 availability); travel distance within Wake County; and whether additional parts like strike plates or door-edge reinforcement are needed. Wake County Locksmith confirms an exact, up-front price before any work begins — no surprises on the invoice.
A common question from Apex residents — Apexians, as locals sometimes call themselves — is whether a locksmith call-out fee applies separately from the labor. We're straightforward about this: any trip or dispatch component is factored into the quote you approve before we start. There's no hidden line-item reveal at the end of the job. The same transparency applies whether you're calling us at 10 a.m. for a scheduled replacement or at 2 a.m. for an emergency locksmith situation where a door knob with lock and key has completely failed and you can't secure your home.
Frequently asked questions
How much does a locksmith cost per hour for door knob lock replacement in NC?
Locksmith pricing in North Carolina varies based on several factors — lock type and hardware grade, the complexity of the job (a standard knob lock swap differs significantly from a mortise lock replacement), time of day, and travel distance to your location. Rather than quoting an hourly rate that may not reflect your actual job, Wake County Locksmith provides a firm, all-inclusive price before any work begins. Call (919) 341-2147 for a specific quote for your door and location.
What is a locksmith call-out fee, and will I be charged one?
A call-out fee — sometimes called a dispatch or trip fee — is a charge some locksmiths apply just for arriving at your location, separate from labor and parts. At Wake County Locksmith, all costs including any travel component are factored into the single up-front quote you approve before we touch anything. There are no separate line items that appear after the fact. What we quote is what you pay.
How much does an emergency locksmith cost near me in Apex?
Emergency locksmith calls — particularly late-night or early-morning responses — do factor time-of-day into the overall price, which reflects the real cost of maintaining 24/7 availability with trained, insured technicians. The exact amount depends on your specific situation: what type of door knob lock or mortise lock needs attention, what parts are required, and where in Wake County you're located. We confirm the full price before starting so you're never surprised.
Can a locksmith replace a door knob with lock for a bedroom or interior door?
Absolutely. Interior door knob with lock for bedroom, bathroom, and home-office applications is one of our most common residential requests. Privacy sets (which lock from the inside with a push-button or turn-button and can be opened from the outside with an emergency pin) and keyed privacy sets are both options we carry and install. We'll assess the bore size of your existing door and match or upgrade the hardware on the spot.
Is it worth learning how to pick a door knob lock instead of calling a locksmith?
Lock picking — even your own door knob lock — requires practice, the right tools, and knowledge of the specific pin stack inside your cylinder. Attempting it without experience often worsens the problem: pins can be damaged, the plug can be inadvertently set in a bind, or the knob mechanism can be scratched or bent. For a one-time lockout or a lock that needs replacement anyway, calling a trained technician is almost always faster and avoids the risk of turning a simple job into a door-replacement situation. Our mobile team can reach most Apex addresses quickly, 24/7.
What's the difference between a double lock door knob and a standard one?
A double lock door knob — sometimes called a double-cylinder knob lock — requires a key to operate from both the interior and exterior side of the door, unlike a standard knob that has a thumb-turn on the inside. They're sometimes used on doors with glass panels nearby (to prevent a break-the-glass, reach-in unlock). However, they come with an important safety consideration: in a fire or emergency, everyone inside must have quick key access to exit. We discuss these trade-offs with every customer before installation so you make an informed choice.