Choosing Locks for New Construction

Published: April 20, 2026

What to upgrade from builder-grade, which smart locks work best in Florida, and how to plan your keying system before move-in.

Residential April 20, 2026 By Darko Ezias
TL;DR - Quick Answer

Treasure Coast Locksmith provides new construction lock consultation and installation in Port St. Lucie, Stuart, Fort Pierce, Vero Beach, Jensen Beach, and across the Treasure Coast. Upgrade from builder-grade locks before move-in for better security and longevity. Call (772) 758-1322 for mobile service.

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The Builder-Grade Lock Problem

When you build a new home on the Treasure Coast, the builder installs locks from their supply contract. These are almost always ANSI Grade 3 - the minimum acceptable rating. They meet code requirements, look presentable, and cost the builder $15 to $30 per lock.

Grade 3 locks are designed for light residential use. They provide basic security but have thinner internal components, simpler pin configurations, and finishes that deteriorate faster in Florida's salt air and UV conditions. Upgrading at move-in is significantly easier and cheaper than dealing with premature hardware failure later.

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Lock Grade Comparison for New Homes

  • ANSI Grade 3 (Builder Standard)Minimum code compliance. Tested to 200,000 cycles. Suitable for interior doors and low-traffic applications. Not recommended for exterior doors on the Treasure Coast.
  • ANSI Grade 2 (Recommended Minimum)Tested to 400,000 cycles. Better internal components, stronger springs, and more durable finishes. Appropriate for all residential exterior doors. Brands: Schlage B60N, Kwikset 980.
  • ANSI Grade 1 (Premium)Commercial-grade rated to 800,000 cycles. Maximum pick, bump, and drill resistance. Ideal for front doors and primary entry points. Brands: Schlage B660P, Medeco Maxum.
  • Smart Lock OptionsElectronic keyless entry with app control, auto-lock, guest codes, and activity logs. No traditional key needed. Best models for Florida: Schlage Encode, Yale Assure Lock 2, August WiFi Smart Lock.

Planning Your Keying System

New construction gives you the opportunity to plan a logical keying system from scratch. Instead of a random collection of different keys for different doors, you can have a unified system.

Key alike means all exterior doors use the same key. This is the most common choice for homeowners. You can also set up a system where the front door has a unique key, while all other exterior doors share a different key. Interior keyed locks (office, master bedroom) can have their own key or be keyed to the exterior.

Common New Construction Lock Mistakes

  • Accepting builder-grade hardware without requesting upgrades during the build
  • Choosing locks based on appearance only without checking the ANSI grade rating
  • Not planning WiFi coverage for smart lock locations
  • Forgetting to include the garage entry door in the lock upgrade plan
  • Selecting chrome or polished brass finishes that corrode quickly in coastal conditions
  • Not rekeying construction master keys before move-in (builders use master keys during construction)

New Home Lock Checklist

  • Upgrade all exterior doors to at least ANSI Grade 2 deadbolts
  • Choose PVD or satin nickel finishes for coastal durability (avoid polished brass and chrome)
  • Install at least one smart lock for keyless convenience and remote access
  • Request that the builder rekeys all locks after construction - construction master keys are widely shared
  • Have all exterior locks keyed alike for single-key convenience
  • Consider adding a deadbolt to the garage entry door if the builder did not include one

New Construction Service Areas

Active Building Communities

Tradition, St. Lucie West, Tesoro, The Preserve, Magnolia Lakes, Portofino Shores, Valencia Walk, PGA Village, Torino, Ayersworth, Westlake

Coverage Area

All new construction in St. Lucie County, Martin County, and Indian River County. We work directly with builders and homeowners during construction and after move-in.

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People Also Ask About This in Port St. Lucie

What lock grade should I choose for a new home in Port St. Lucie?

ANSI Grade 2 is the recommended minimum for new homes in Port St. Lucie exterior doors, offering 400,000 cycle testing and durable finishes that resist Florida's salt air and UV damage. Grade 3 builder-standard locks are adequate only for interior doors. For maximum security on front doors, Grade 1 commercial-rated locks provide 800,000 cycles and superior pick and drill resistance. Treasure Coast Locksmith recommends Grade 2 or higher for all Treasure Coast new construction upgrades, typically costing $89 - $150 per lock installed.

How much does it cost to upgrade locks in a new Treasure Coast home?

Lock upgrades for new Treasure Coast homes typically range from $89 to $150 per lock installed, depending on the ANSI grade and smart lock features. A standard 4-door exterior upgrade costs $356 - $600 for Grade 2 hardware. Smart locks add $200 - $300 per unit. Treasure Coast Locksmith provides mobile service with less than 30 minutes typical response time and offers free consultations to assess your new construction keying needs before move-in.

Can I install smart locks on a new construction home in St. Lucie County?

Yes, smart locks are an excellent choice for St. Lucie County new construction homes. Top models for Florida include Schlage Encode, Yale Assure Lock 2, and August WiFi Smart Lock, which offer keyless app control, guest codes, activity logs, and auto-lock features. Plan WiFi coverage for lock locations during construction to ensure reliable connectivity. Treasure Coast Locksmith installs and programs smart locks across St. Lucie County and can integrate them into a unified keying system designed specifically for your new home.

What is a keying system for Port St. Lucie new construction?

A keying system for Port St. Lucie new construction is a unified plan where multiple doors use coordinated keys instead of random different keys. The most common system is "key alike," where all exterior doors operate on one key. Alternatively, you can designate the front door with a unique key while other exterior doors share a second key, with interior locks (office, master bedroom) keyed separately. Planning this during construction is significantly easier than retrofitting. Treasure Coast Locksmith designs custom keying systems for new Treasure Coast homes to maximize convenience and security.

Why should I upgrade builder-grade locks before move-in in Florida?

Builder-grade ANSI Grade 3 locks are minimum code compliance tested for only 200,000 cycles and use thinner components designed for light use. Florida's salt air and intense UV exposure cause finishes to deteriorate faster, leading to premature hardware failure. Upgrading at move-in is significantly cheaper and easier than replacing failed locks after occupancy. Grade 2 or higher locks resist corrosion and provide better security with stronger springs and more complex pin configurations, protecting your investment for 20+ years on the Treasure Coast.

What's the most common lock upgrade mistake for new homes in Florida?

The most common mistake is accepting builder-grade hardware without requesting upgrades during the build phase. Additional errors include choosing locks based on appearance alone without verifying ANSI grade ratings, forgetting to upgrade the garage entry door, and not planning WiFi coverage for smart lock installations. Treasure Coast Locksmith recommends submitting lock upgrade requests to your builder before framing completion. If you've already closed on your Port St. Lucie or Treasure Coast home, call (772) 758-1322 for same-day mobile upgrade consultation and installation.

Need Locksmith Service on the Treasure Coast?

Call (772) 758-1322 for fast, licensed mobile locksmith service across Port St. Lucie, Stuart, Fort Pierce, and Vero Beach.

Call (772) 758-1322