Published 2026-05-09 · MKE Locksmith
New Home Rekey Checklist: What Milwaukee Buyers Should Do First Week
Quick answer: The first-week security checklist for a new Milwaukee home: rekey all entries ($150-$300), reset garage door opener rolling code, audit smart-lock and alarm system codes, change Wi-Fi password. Don't replace the locks (rekey hits the same security outcome for half the cost). Bundle the work into one locksmith visit.
Why this matters
When you close on a Milwaukee home, here's who has had keys at some point: the previous owner, the previous owner's family members and friends, real estate agents (yours and theirs), home inspectors, appraisers, contractors who did pre-listing work, the cleaning crew that staged the listing, repair people from the past 5+ years, prior tenants if it was ever a rental, and depending on the situation, a neighbor or family member with a "spare." Many of those people still have your keys. A rekey makes those keys non-functional.
Milwaukee's elevated property-crime rate (28 incidents per 1,000 residents, about 116% above the national average) makes this less optional than in lower-crime metros. The $150-$300 rekey is statistically a high-ROI purchase.
The first-week checklist
Day 1 (move-in day)
- Rekey the front door. If you can only do one thing, this is it. $50-$120 for a single-cylinder rekey including service call.
- Rekey the back door / kitchen door. Whichever entry you'll use second-most.
- Reset the garage door opener rolling code. Manufacturer instructions in the manual or online. Takes 5-10 minutes. Resets all paired remotes. You'll need to re-pair your own.
Week 1
- Rekey remaining entries. Side door, garage service door, basement bulkhead, walk-out lower-level. Bundle with the Day 1 work for the lower per-cylinder cost.
- Audit smart-lock codes if you inherited any. Most smart locks store 50-100 user codes. Delete every prior code and create your own. Document what you set.
- Reset alarm system master code. If you have a security system, the prior owner had an installer code AND a master code. Both should be reset. The monitoring company can guide.
- Change Wi-Fi password. The prior owner may have shared it with house guests, contractors, neighbors, the cleaning crew. Reset the router admin password too.
- Reset smart thermostat / smart device passwords. Nest, Ecobee, Ring, etc. Some of these have inherited owner accounts that don't transfer cleanly.
Month 1
- Smart-home device audit. Walk every device, check the manufacturer app for old user accounts, remove them.
- Smoke / CO detector battery check. Wisconsin code requires functional smoke detectors on every level + every bedroom. Check batteries and date stamps (10-year replacement on most models).
- Garage opener wall-keypad reset. If you have an exterior keypad on the garage, reset the PIN.
- Mailbox key. If you have a USPS cluster mailbox, get your own key from the post office and have any extras retired.
Cost summary for the rekey work
| Service | Standard hours |
|---|---|
| Single-cylinder rekey + service call | $70-$120 |
| 4-cylinder home rekey, key-alike | $150-$220 |
| 6-cylinder home rekey, key-alike | $200-$300 |
| Add: smart-lock retrofit on most-used entry | $150-$400 + hardware |
| Add: ANSI Grade 1 deadbolt upgrade per door | $100-$250 installed |
| Add: reinforced strike plates with 3" jamb screws | $40-$80 per door |
Bundled vs. unbundled
Bundling matters. A 4-cylinder rekey scheduled as a single visit: $150-$220 total. Same 4 cylinders rekeyed across 4 separate visits at different weeks: $280-$480 total because each visit absorbs the service-call portion. Bundle.
Real Milwaukee new-home rekey jobs
- Bay View 1924 bungalow, 4 cylinders, key-alike. $185. 35 minutes.
- Mequon ranch, 6 cylinders + smart-lock front door upgrade. $545 + $279 hardware. 90 minutes.
- Wauwatosa Village 1926 single-family, 5 cylinders + reinforced strikes on 3 entries. $345. 75 minutes.
- Greenfield ranch, 4 cylinders + ANSI Grade 1 upgrade on front + back. $415. 80 minutes.
- West Allis duplex purchase, both units rekeyed independently, 8 cylinders total. $325. 70 minutes.
Frequently asked
Should I rekey my new house immediately?
Yes, within the first week. The previous owner, real estate agents, contractors, cleaning service, repair people, and an unknown number of family members had keys at some point. A $150-$300 rekey is the cheapest peace-of-mind purchase in homeownership.
What does a Milwaukee new-home rekey cost?
$150-$300 for a typical 4-6 cylinder home. Per-cylinder $20-$40 plus a $50-$80 service call. We can also key-alike (one key for every door) at no extra charge.
What else should I do in the first week?
Rekey all entries (front, back, side, garage service, basement bulkhead). Reset garage door opener codes. Check and replace smart-lock codes if you inherited any. Reset HVAC thermostat passwords if it's a smart thermostat. Audit the alarm system for old user codes. Change Wi-Fi password (the prior owner may have shared it widely). Inspect for hidden cameras (rare but happens with short-term-rental conversions).
What's the priority order?
Day 1: rekey front door + back door (the entries you'll use most). Week 1: rekey remaining entries, reset garage codes, reset smart-lock codes. Month 1: alarm system audit, smart-home device password reset, smoke/CO detector battery check.
Should I install smart locks while we're at it?
Reasonable. If you're rekeying anyway, swapping the front door to a smart lock adds about $150-$400 to the visit. The advantage: you can give codes to housekeepers, contractors, dog walkers without sharing 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 (manufacturer instructions vary; takes 5 minutes). Reprogram any wall-mount keypads with a new PIN. If the prior owner gave openers to neighbors or contractors, the reset invalidates those.
Schedule the rekey
Call (414) 251-1023 to schedule. Tell us how many doors and we'll quote a bundled total. See our rekey + lock change page, our rekey vs. replace deep-dive, and the landlord rekey playbook if you're a property manager.
Last updated: 2026-05-09.