Locks & Home Security
How to Secure a Sliding Glass Door (Patio Slider)
How to secure a sliding glass door: the latch is not the weak point, lift-out is. Compare the four lock options and see which failure each one stops.
July 29, 2026 · 12 min read
Independent locksmith guides
Locked out, or just not sure who to trust.
Locksmith Service Guide is a library of 26 plain-English guides on lockouts, car keys, deadbolts, and what locksmith work should really cost. Read up before you call so you know the fair price and the right questions to ask.
Locked out right now?
Check every door and window first
Walk the whole place before you call anyone. Back doors, patio sliders, and ground-floor windows are unlocked more often than people expect.
Call anyone who has a spare
A landlord, building manager, roommate, partner, or neighbor who holds a key beats any locksmith on both time and cost.
Get a total price on the phone
Ask for the full price for your exact situation before a tech drives out. Be wary of a $19 headline rate that quietly doubles once someone is at your door.
Expect to prove the place is yours
A legitimate locksmith asks for photo ID and proof of residence before opening a door. That is a good sign, not an insult.
A too-cheap phone price is bait. The honest number covers the service call plus the job.
Read the full locked-out guideBrowse by topic
Every guide sits in one of 3 areas. Start wherever your lock, key, or door is.
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Questions people ask first
How do I know if I need an emergency locksmith or can wait for an appointment?
Call for same-hour service if you are locked out with no reachable spare, a key snapped off in a lock or ignition, your property was broken into, or a former roommate or employee still holds a working key. Those situations affect your access or safety right now. A sticking deadbolt, a planned rekey, or a lock upgrade can wait for a scheduled visit, which usually costs less than an after-hours call. When in doubt, describe the problem on the phone and let the dispatcher advise.
Should I rekey my locks or replace them after moving in?
Rekeying is usually enough when the hardware still turns smoothly and looks intact. The locksmith swaps the pins inside the existing cylinder so every old key stops working, which is faster and lower cost than new locks. Choose replacement when a lock is pried, drilled, worn, or too low a grade for the door, or when you want to upgrade to a keypad or smart deadbolt. After a move, rekeying every exterior lock to a single new key is a common, affordable first step.
What makes locksmith prices vary so much between quotes?
The job drives the price far more than the zip code. A standard lockout sits at the low end, rekeying costs less than full lock replacement, and broken key extraction takes longer than a simple opening. Automotive work runs higher because transponder and smart keys need parts and programming equipment. After-hours timing, distance, and lock grade all add to the total. A very low phone quote followed by a much larger on-site figure is the classic bait-and-switch, so confirm the service fee and an estimated total before the tech starts.
Can one locksmith handle home, car, and business locks, or do I need specialists?
Many mobile locksmiths cover residential, automotive, and commercial work, but not all carry the tools for every job. Cutting a smart key, opening a safe, or servicing a mortise lock takes specific equipment and training that a general lockout tech may not have on the van. When you call, name the exact task, the make and model or lock type, and ask whether the dispatched tech is set up for it. That short question prevents a wasted trip fee and a second visit.
Can a locksmith make a new car key fob if I lost every key?
Yes, for the large majority of makes and models. A mobile locksmith uses your vehicle VIN and proof of ownership to cut a fresh blade where needed and program a new fob to the car's security system on site. Bring your ID and registration to verify you own the vehicle. All-keys-lost jobs take longer than adding a spare and cost more because of the extra programming, but they still typically run well under dealership pricing and skip the tow.