Every new home in Summerville SC — whether it’s a resale in Downtown Summerville or a brand-new build in Nexton — has one serious security problem: you don’t know who has a copy of your key.

The Builder Key Problem in Nexton, Cane Bay & Carnes Crossroads

If you bought a new construction home, your lock was keyed with a builder master key. That master key was used by every electrician, plumber, HVAC technician, painter, carpet installer, and site supervisor who worked on your home. Builder crews are often subcontracted — meaning the key passed through hands you’ll never know about.

What Is Rekeying and How Does It Work?

Rekeying changes the internal pin tumblers inside your existing lock cylinder so your old key — and any copies — no longer work. A locksmith removes the cylinder, replaces the pins to match a new key, and reinstalls it. The process takes about 10–15 minutes per lock and costs $20–$45 per lock in Summerville.

Rekeying is the right call when your locks are less than 10 years old, in good working condition, and ANSI Grade 1 or Grade 2 certified. You get the same security as a new lock for a fraction of the cost.

When Should You Replace Instead of Rekey?

• The lock is stiff, sticking, or difficult to turn — common in Summerville’s humid subtropical climate where door frames expand in summer heat
• The lock is a cheap builder-grade knobset with no deadbolt — these provide almost no security
• The lock is more than 10–15 years old on a resale home
• The previous owner added smart lock hardware you want to replace entirely
• You want to upgrade to a Grade 1 deadbolt or smart lock for an STR or rental property

Rekeying vs Lock Replacement — Cost Comparison

Rekeying a 3-door home (front, back, garage entry): $100–$135. Replacing all 3 locks with ANSI Grade 2 deadbolts: $300–$450 including hardware. For most move-in situations, rekeying is the clear winner — same security outcome, 70% less cost.

What We Recommend for Summerville New Construction

For new builds in Nexton, Cane Bay, and Carnes Crossroads: rekey on move-in day, every door. Don’t wait. We’re based at 1915 Old Trolley Rd and can typically reach any Summerville neighborhood within 30 minutes. Most move-in rekeying jobs take under 45 minutes total.