New Homeowner Guide
New Homeowner Security Guide: Your First 30 Days Checklist
Updated April 2026 | By Berkley Security Inc. | 8 min read
Quick Answer:
The 3 most critical security steps for new homeowners: 1) Rekey all exterior locks immediately ($15-$25 per lock). 2) Install or activate an alarm system within 30 days (systems from $199). 3) Install smoke detectors on every level. Your home is most vulnerable during the move-in period when doors are open, strangers see your belongings, and you are not yet familiar with the neighborhood.
Congratulations on your new home. Whether you just closed on a house in Brandon, Madison, or anywhere in the Mississippi metro area, the first 30 days are the most important for establishing your home's security foundation. Use this 12-step checklist to make sure nothing is missed.
The 12-Step New Homeowner Security Checklist
Rekey All Exterior Locks (Day 1)
You have no idea how many key copies exist. Previous owners, family, contractors, realtors, pet sitters, and cleaners may all have copies. Cost: $15-$25/lock. A locksmith handles the entire house in 30 minutes. Consider upgrading to smart locks while you are at it.
Change Garage Door Codes (Day 1)
Reset the garage door opener code and delete any previously programmed remotes. The old owner's remotes still work until you do this.
Check All Door Frames and Strike Plates (Week 1)
Most door frames use half-inch screws that can be kicked in. Replace with 3-inch screws on every exterior strike plate. Add a reinforced strike plate for $15-$30 per door. This 20-minute upgrade can withstand intense impact.
Install or Activate an Alarm System (Week 1-2)
If the home has an existing system, have it evaluated and activated with new monitoring. If not, schedule a professional installation. Systems start at $199. This is your most impactful investment. Learn about wired vs wireless options.
Install Smoke and CO Detectors (Week 1)
One on every level, inside every bedroom, and outside sleeping areas. Replace any detectors older than 10 years. For maximum safety, connect them to your monitored fire alarm system.
Check All Window Locks (Week 1)
Open and close every window. Test every lock. Replace any that are broken, loose, or missing. Ground-floor windows are the most critical.
Evaluate Exterior Lighting (Week 2)
Install motion-activated lights at all entry points: front, back, side, and garage. Security lighting is one of the cheapest and most effective deterrents.
Trim Landscaping Near Windows (Week 2)
Overgrown bushes near windows provide concealment for burglars. Trim shrubs below window level so entry points are visible from the street.
Secure the Garage (Week 2)
Disable the emergency release on the garage door (can be triggered from outside with a coat hanger). If the garage connects to your home, treat the interior door as an exterior security point.
Meet Your Neighbors (Week 2-3)
Neighbors who know you will notice when something looks wrong. Introduce yourself and exchange phone numbers. Good neighbors are a security force multiplier.
Set Up Mail Forwarding and Stop Piling (Week 1)
Mail and packages piling up signal vacancy. Set up USPS forwarding and hold at the post office until you are settled.
File for Insurance Discount (Week 3-4)
Once your alarm system is installed, get the monitoring certificate and send it to your insurance agent. Save 5-20% on your new homeowner's policy.
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Free on-site assessment for new homeowners. We evaluate existing systems, design new ones, and install before or during your move-in.
Schedule Free AssessmentFrequently Asked Questions
Should I rekey locks on a new home?
Yes, immediately. Previous owners, family, contractors, and realtors may all have copies. $15-$25 per lock, 30 minutes for the whole house.
When should I install a security system?
Within the first 30 days, ideally before or during move-in. Your home is most vulnerable during the moving process.
Should I keep the old owner's alarm?
Yes, if the equipment is modern. Have it evaluated, change all codes, and set up new monitoring. Saves money vs full new install.
What is the first security step?
Rekey all exterior locks on day one. This is the most important and most affordable security step for any new home.
How much does new home security cost?
Systems from $199, monitoring from $25/month. Existing system activation may only need $100-$300. Insurance discounts offset much of the cost.
Before or after moving in?
Before or during move-in is ideal. Doors are open, movers see valuables, and your routine is not established yet.
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