Published 2026-05-09 · MKE Locksmith
New Home Rekey Checklist: What Milwaukee Buyers Should Do
Quick answer: The first-week security checklist for a new Milwaukee home: rekey all entries (usually $150-$300), reset the garage door opener code, audit smart-lock and alarm codes, and change the Wi-Fi password. Rekeying usually costs less than replacing the locks outright. Bundle the work into one locksmith visit where you can.
Why this matters
When you close on a Milwaukee home, here's who may have had a key at some point: the previous owner, their family and friends, real estate agents on both sides, home inspectors, appraisers, contractors who did pre-listing work, cleaners and stagers, repair people from years past, prior tenants if it was ever a rental, and possibly a neighbor with a spare. A rekey makes every one of those old keys stop working.
The first-week checklist
Day 1 (move-in day)
- Rekey every entry in one visit. Front, back, side, garage service door, basement bulkhead. Each cylinder usually costs $20-$40, with a service call added.
- Reset the garage door opener's rolling code. Instructions are in the manual or online. Takes about 5-10 minutes and resets every paired remote, so you'll need to re-pair your own.
Week 1
- Audit smart-lock codes if you inherited any. Smart locks can hold many stored codes. Delete every prior code and set your own.
- Reset the alarm system's master code. If there's a security system, the prior owner likely had an installer code and a master code. Both should be reset; the monitoring company can walk you through it.
- Change the Wi-Fi password. The prior owner may have shared it with guests, contractors, or cleaners. Reset the router's admin password too.
- Reset smart thermostat and smart device passwords. Nest, Ecobee, Ring, and similar devices sometimes carry an inherited owner account that doesn't transfer cleanly.
Month 1
- Smart-home device audit. Check every connected device's app for old user accounts, remove them, and look for any camera or smart device a previous owner left behind.
- Smoke and CO alarm check. Test every alarm in the house. Replace smoke alarms 10 years after the date on the label. CO alarms often need replacing sooner, so check the label.
- Garage opener wall-keypad reset. If there's an exterior keypad on the garage, reset the PIN.
- Mailbox key. If you have a USPS cluster mailbox, ask whether your compartment is USPS-owned or privately owned. USPS-owned units: the post office issues you a key. Privately owned units: the owner or HOA handles the lock.
Bundling saves a trip
One service call covers the whole house if it's scheduled as a single visit. Spreading the doors out over a few weeks means paying for that call more than once.
Frequently asked
Should I rekey my new house immediately?
Yes, within the first week or two. The previous owner, real estate agents, contractors, cleaners, and repair people may have had a key at some point. A full rekey usually runs $150-$300.
What does a Milwaukee new-home rekey cost?
Usually $150-$300 for a 4-6 cylinder home, or $20-$40 for each cylinder, with a service call added, for a smaller job. Ask about keying every door alike when you call.
What's the priority order?
Day 1: rekey every entry in one visit and reset the garage door opener code. Week 1: audit smart-lock codes, reset the alarm system's master code, and change the Wi-Fi password. Month 1: audit smart-home devices, check smoke and CO alarms, and reset any garage keypad.
Should I install smart locks while I'm at it?
It's a good time to do it. If you're already rekeying, swapping the front door to a smart lock usually adds $150-$400, with hardware extra if you don't supply it. It also lets you hand out codes to housekeepers or dog walkers without giving out physical keys.
What about keys for the garage door opener?
Garage door openers don't use keys. They use rolling-code remotes. Reset the rolling code on the opener motor unit (instructions vary by manufacturer; takes about 5-10 minutes). Reprogram any wall-mount keypad with a new PIN. If the prior owner gave openers to neighbors or contractors, the reset invalidates those.
Schedule the rekey
Call (262) 236-5232 and tell us how many doors and what kind of locks you have. When you are choosing between a rekey and new hardware, compare the costs in rekey vs. replace. Landlords should read the landlord rekey guide instead.
Last updated: 2026-05-09.