Northline mobile service

Residential Locksmith in Seattle

Home lockouts, rekeying, deadbolts, smart locks and move-in security from a mobile Seattle locksmith.

Home access & security

Fix the problem without replacing what still works

We start with the lock condition and your goal: regain entry, invalidate old keys, repair worn hardware or upgrade a door.

  • Home lockout service
  • Move-in and lost-key rekeying
  • Deadbolt repair and installation
  • Smart lock and keypad setup
  • Mailbox and garage locks
  • Patio and sliding-door locks
  • Broken key extraction
  • Single-key systems
  • Break-in hardware repair
Rekey or replace?

The practical choice depends on the hardware

Rekey when the lock works well

The cylinder is changed internally so old keys stop working. It is often the efficient move after buying a home, tenant turnover or a lost key.

Replace when hardware is worn

Replacement fits damaged locks, unreliable latches, missing keys plus severe wear, or a planned security and style upgrade.

Home lockoutfrom $79
Rekeyfrom $69 / cylinder
Replacementfrom $95 + hardware

Door condition, cylinder count, hardware and time affect final price. You approve it before work.

Recent Seattle case

Four locks, one new key in Queen Anne

A new homeowner wanted every old key invalidated. Four cylinders were rekeyed to one key and completed in 51 minutes.

Residential FAQ

Good questions before changing a lock

Can all my doors use one key?

Often yes when the cylinders use compatible keyways. We inspect them before promising a single-key setup.

Should I rekey after moving in?

Rekeying is a sensible way to make unknown old copies stop working while keeping serviceable hardware.

Can you install a smart lock I purchased?

Yes for compatible doors and hardware. Door alignment and bore dimensions are checked before installation.

Can a lockout be opened without drilling?

Non-destructive entry is the first approach. Damage, malfunction or high-security hardware can change the method.

Do you service mailbox and garage locks?

Yes, subject to ownership authorization and hardware availability.

Coverage & related help

Residential service across the region

Bellevue · Tacoma · Kent · Everett

For urgent entry, use emergency locksmith service. For vehicles and workplaces, see automotive and commercial service.

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