Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Window Lock Services in Marietta, GA
Window lock repair and installation in Marietta typically costs between $95 and $225 per opening, depending on the hardware type and whether we are retrofitting a security device or replacing an existing mechanism. We provide firm, written quotes before any work begins, ensuring the price you are quoted on the phone is the price you see on the final invoice. If you are struggling with a jammed sash lock or need to secure ground-floor windows against unauthorized entry, call us at (762) 252-5919 to discuss your options.
Securing windows is often overlooked in home security, yet it remains the most common point of entry for unauthorized access in residential neighborhoods across Marietta. Whether you live in a historic home near Marietta Square with original wood-frame windows or a newer build in the suburbs using vinyl sliders, your window hardware acts as the first line of defense. At Novak Lock & Security, we treat window security with the same technical rigor as our Residential Locksmith in Marietta services. We do not use vague estimates; we provide a documented scope of work and a firm price for every project. Our technicians are background-checked, uniformed professionals who adhere to The Haven Standard, ensuring that every screw, strike plate, and lock assembly is installed to factory specifications.
When You Need Window Lock Services
You should consider professional window security intervention if you notice any of the following conditions. These are not merely maintenance issues; they represent gaps in your home’s security perimeter.
- Jammed or Seized Mechanisms: If a sash lock or crank handle feels gritty, sticks, or refuses to engage fully, the internal gears are likely worn or clogged with debris. Forcing these can break the housing, requiring a full replacement rather than a simple adjustment.
- Loose or Rattling Hardware: A window that rattles when the wind blows is a window that is not effectively sealed or locked. This often indicates stripped mounting screws in the frame, which compromises the integrity of the entire lock assembly.
- Outdated or Non-Functional Latches: Many older homes in Marietta still utilize original latches that offer no real security against forced entry. We frequently replace these with reinforced hardware from manufacturers like Baldwin or Yale to ensure the window remains firmly shut.
- Failed Child Safety Restrictors: If your window restrictors-devices designed to prevent windows from opening more than a few inches-are bent or broken, the safety function is void. We can install robust restrictors that meet safety standards while maintaining your ability to open the window for ventilation.
- Evidence of Tampering or Attempted Entry: If you find scratch marks around your window frame or lock, the hardware has been compromised. In these instances, we recommend an immediate assessment to determine if the window frame itself remains structurally sound or if the locking point needs reinforcement.
- Installing High-Security Secondary Locks: Even with functional primary locks, many homeowners choose to add secondary locking devices on ground-floor windows. We install keyed sash locks and tamper-resistant bars that provide an extra layer of protection, particularly for windows hidden from street view.
Our Window Lock Process

Our approach to window security is systematic. We do not perform “quick fixes” that rely on temporary solutions. Every job follows a documented procedure to ensure the hardware functions correctly for years to come.
- Initial Assessment and Written Quote: When you call us, we ask for details about your window type-casement, double-hung, or sliding. We provide a firm, written price for the labor and materials. Per Haven Standard Clause 1, the price we quote is the price you pay; it does not change when the technician arrives at your door.
- On-Site Inspection: Upon arrival, our technician examines the window frame material (wood, vinyl, or aluminum) and the condition of the existing lock. We verify that the window is square and that the locking mechanism will engage properly without binding.
- Precision Installation: We remove the old hardware and prep the mounting surface. If the previous screws were stripped, we address the mounting holes to ensure the new hardware is anchored into solid material. We use appropriate fasteners for the specific frame type to prevent cracking or warping.
- Alignment and Testing: A lock is only as secure as its alignment. We test the operation multiple times to ensure the latch engages the strike plate with the correct tension. If the window sash is sagging, we advise on the necessary adjustments to ensure the lock functions without needing to be forced.
- Documentation and Verification: We provide a documented photo record of the finished installation as part of our standard service. This record confirms the work was performed to our quality standards. You receive a copy of this record along with your invoice, covered by our 365-Day Done Right Promise.
Window Lock Pricing in Marietta
We believe in upfront pricing. We do not hide our rates or force you to wait for a technician to arrive to find out what a job costs. The following table outlines our standard pricing for common window lock services in the Marietta area.
| Service Type | Estimated Cost Range |
|---|---|
| Standard Sash Lock Replacement | $95 - $145 per unit |
| High-Security Secondary Lock Installation | $120 - $185 per unit |
| Child Safety Restrictor Installation | $110 - $160 per unit |
| Repair/Alignment of Existing Mechanism | $95 - $150 per window |
Note: These prices are estimates. We provide an exact, written quote based on the specific hardware required for your window brand. We never charge for estimates, and we offer a free second opinion if you have a written quote from another provider.
FAQs - Window Lock

Can you repair a window lock that is stuck or jammed?
Yes, we can often repair jammed locks, but the success depends on whether the internal housing is damaged. If the lock is simply misaligned or clogged with debris, we can clean and recalibrate it to factory standards; if the internal gears are stripped, we will recommend a replacement to ensure your security is not compromised. Call (762) 252-5919 to have a technician assess the condition of your hardware.
Do you install child safety locks on windows?
Yes, we install specialized window restrictors that prevent windows from opening more than a few inches, which is vital for child safety in multi-story homes. These devices are designed to be secure enough to prevent accidents but can be disengaged by an adult in case of an emergency, such as a fire.
Is it better to repair an old window lock or replace it?
If your window lock is an older, entry-grade model, replacement is almost always the better option because modern locks offer significantly higher resistance to forced entry. We only recommend repairing existing hardware if it is a high-quality, specialized lock that is currently functioning well but requires minor alignment or if the hardware matches the aesthetic of a historic home.
Can you match new window locks to my existing home security system?
While most window locks are mechanical, we can integrate high-security hardware from brands like Medeco or Schlage that offer superior physical resistance. If you are looking to secure your home, we recommend prioritizing the physical strength of the latch and the quality of the strike plate installation over electronic features for ground-level windows.
Securing Your Home in Marietta
Your home is your most significant investment, and its security depends on the integrity of every entry point, including your windows. At Novak Lock & Security, we apply the same professional standards to a window latch as we do to a deadbolt installation. We operate with transparency, providing written pricing and documented records for every service call. If you are ready to secure your windows or need a professional assessment of your current hardware, call us at (762) 252-5919. We are ready to provide a firm, no-hassle estimate.
Written by Daniel Novak, Owner at Novak Lock & Security Marietta, serving Marietta.






