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Locksmith guides you can actually use.

Short walkthroughs of the locksmith and home-security jobs every San Diego homeowner should know. Each guide has step-by-step instructions, a safety callout, and a clear line on when to call a pro.

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Home security audit — score your house in 5 minutes

12 questions about your doors, deadbolts, strike plates, and smart-lock setup. Returns a score out of 100, a prioritized fix list with cost ranges, and a plan of attack. No email, no sign-up.

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Homeowner swapping AA batteries in a keypad smart deadbolt
Maintenance · Featured · 3 min

How to change smart-lock batteries

Keypad and smart locks run on batteries (usually 4x AA). When the batteries get low, the keypad gets slow, the motor labors, and eventually the lock stops responding. Most brands give you a low-battery warning weeks in advance — swap them before they die at the wrong time.

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What HVAC maintenance can you do yourself?

Homeowner inspecting a deadbolt strike plate on a residential door
6 min
Security

How to test and fix deadbolt alignment

A deadbolt that sticks, binds, or requires lifting the door to engage is misaligned. Over time this wears out the lock mechanism and lets the door swing loose even when you think it's locked. The fix is almost always cheap — adjusting the strike plate.
Homeowner applying graphite lock lubricant to a residential deadbolt
4 min
Maintenance

How to lubricate a sticky door lock

A key that turns sluggishly doesn't need WD-40 (which attracts dust and gums up the mechanism over time). It needs a dry lubricant — graphite or Teflon-based — applied sparingly. This is a five-minute fix that extends the life of a lock by years.
Homeowner installing a keypad smart deadbolt on a residential door
12 min
Security

How to install a smart lock on an existing deadbolt

Most retrofit smart locks (August, Level, Nuki) install on the interior side of your existing deadbolt, keeping your exterior hardware and physical keys the same. Full replacement smart locks (Schlage Encode, Yale Assure) swap both sides. The install takes 15-30 minutes either way if your door is prepped correctly.
Homeowner pressing the keypad to reset user codes on a keyless deadbolt
5 min
Security

How to reset a keyless-entry lock code

Whether you forgot the code, changed cleaners, or had a roommate move out, resetting a keyless deadbolt takes 5 minutes on most brands. Schlage, Kwikset, Yale, and August each have their own reset sequence — if you've lost the manual, here's how to find the right one.
Red flags

When should you stop and call a professional?

Six signs that the problem is past DIY. Turn the system off and pick up the phone — running a system with these issues turns cheap repairs into expensive replacements.

Further reading

What HVAC rebates and resources are available?

CA Bureau of Security and Investigative Services

California BSIS — Locksmith License Lookup

Verify any California locksmith's active BSIS license number before hiring.

 ALOA

ALOA Security Professionals Association

Industry association for locksmiths — find certified and bonded professionals.

 BHMA

ANSI/BHMA Lock Grade Standards

The ANSI/BHMA grading system for residential and commercial lock durability.
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