Window Lock Installation in Highlands Ranch, CO
Casement, Double-Hung, & Sliding Window Locks — Child-Safety & Anti-Theft
Colorado Dependable Locksmith installs window locks across Highlands Ranch, CO. Casement, double-hung, sliding, and specialty window types — we install original equipment hardware and aftermarket security upgrades for child-safety, anti-theft, and ventilation control. Common Highlands Ranch upgrades: second-floor child-safety locks (preventing window falls), anti-theft sash locks (preventing forced entry), and ventilation locks (allowing the window to open 4 inches without releasing security).
Window Lock Types We Install
Casement Window Locks
Casement windows hinge on the side and crank open. Common in newer Highlands Ranch homes (BackCountry, Castle Pines Village, Lone Tree's Heritage Hills). The lock is typically a cam lock on the sash that engages a strike on the frame. Common brands: Truth Hardware, Roto, Anderson, Pella. Failures: cam lock won't engage (sash sag), strike misalignment, broken cam mechanism. Repair time: 30–60 minutes per window.
Double-Hung Window Locks
Double-hung windows slide vertically. Common in older Highlands Ranch homes (Northridge, Eastridge built pre-2000) and in Lone Tree's pre-1990 sections. The lock is typically a cam-action sash lock at the meeting rail. Brands: Andersen, Pella, Marvin, Milgard, Ply Gem. We install upgrades like keyed sash locks for anti-theft and vent latches that allow 4-inch opening without releasing the lock.
Sliding Window Locks
Sliding windows (horizontal slide) are common in Highlands Ranch basement egress windows and in some kitchens. The standard latch is a thumb-turn cam. Upgrades: keyed sliding window lock (anti-theft), charley bar / track stop (anti-jimmy), foot bolt (additional anchor at the bottom track).
Child-Safety Locks
Required by some HOAs for second-floor and higher windows where children may be present. We install window opening control devices (WOCDs) that limit the window opening to 4 inches but include a quick-release for emergency egress. Compliant with ASTM F2090 standard. Must be installed on every operable window above the first floor in homes with children under 10.
Specialty: Egress Window Locks
Colorado building code requires basement bedroom windows to be egress-rated — minimum 5.7 sq ft net opening, max 44" sill height. The window lock cannot prevent emergency egress. We install quick-release locks that secure the window for daily use but release with a single motion in an emergency.
Window Lock Pricing in Highlands Ranch
| Service | Typical Range |
|---|---|
| Standard sash lock replacement (per window) | $65–$125 |
| Keyed sash lock upgrade (per window) | $95–$165 |
| Casement window cam lock repair | $85–$165 |
| Window opening control device (WOCD) | $95–$165 |
| Anti-theft charley bar / track stop | $45–$95 |
| Whole-home upgrade (8–12 windows) | $685–$1,485 |
Insurance & Code Compliance
Some Highlands Ranch homeowners insurance policies offer 2-5% premium discounts for documented window lock upgrades, particularly after a break-in claim. We provide a written installation certificate listing the exact lock model and ASTM compliance for child-safety installs. Egress-window installs include a written compliance statement for Colorado building code.
Call (720) 299-9964 for window lock installation across Highlands Ranch, Centennial, Lone Tree, and Castle Pines.
Frequently Asked Questions — Window Lock Installation in Highlands Ranch
How much does it cost to install window locks on a 10-window home?
Whole-home window lock upgrade for 8-12 windows typically runs $685–$1,485, depending on lock type (standard sash lock vs. keyed anti-theft) and any necessary repairs. Per-window pricing decreases at scale. Site survey is free for whole-home jobs.
Are child-safety window locks required by code?
Not by Colorado building code, but some Highlands Ranch HOAs require them and many insurance carriers offer premium discounts for compliant ASTM F2090 window opening control devices on second-floor and higher windows in homes with young children.
Can I lock my basement egress window?
Yes — but the lock must allow emergency egress without a tool or key. We install quick-release locks that secure the window for daily use but release with a single motion. This is required by Colorado building code for any basement bedroom window.
Do you repair broken window cam locks?
Yes. Most casement and double-hung window cam lock failures are repairable in 30-60 minutes. Common causes: sash sag (frame settling), strike misalignment, broken cam spring. We carry replacement parts for Truth Hardware, Andersen, Pella, Marvin, and Milgard.
Can I add keyed locks to my existing windows?
Yes. We replace the standard cam-action sash lock with a keyed sash lock — the same operating motion, but a key is required to release. Anti-theft upgrade: typical install is $95–$165 per window.
What Our Customers Say
5.0 stars on Google with 38+ verified reviews. A representative selection of recent feedback from across our service area.
★★★★★Free home security assessment turned into a real eye-opener. They identified that my back patio door could be lifted off its track in 5 seconds, my garage side door wasn't locked, and my mudroom deadbolt was builder-grade Kwikset. We did the upgrades in priority order over two visits, total under $1,200. Wife sleeps better.
★★★★★I have a Toyota Sienna with a smart key fob and after losing my only spare, the dealer wanted $720 and a 4-day wait. Colorado Dependable came to my driveway, programmed a new fob in 45 minutes, $385 total. The new key has worked perfectly for 6 months.
★★★★★We installed Yale Assure smart locks on three doors in our DTC office building. The team coordinated with our IT for the Wi-Fi mesh and access control integration, and trained our front desk staff on the management app. Whole project completed in one afternoon.
View all reviews on our Google Business Profile.
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