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.
Door Reinforcement in Chicago, IL
Door reinforcement is the process of strengthening the weakest points of your entryway-typically the strike plate, the door frame, and the door itself-to prevent forced entry. In Chicago, we often see older door frames in neighborhoods like Lincoln Park or Logan Square that, while architecturally beautiful, lack the structural integrity to withstand modern intrusion methods. At Novak Lock & Security Chicago, we specialize in hardening these entry points using heavy-duty strike plates, security screws, and frame-reinforcing hardware. Because we operate under the Haven Standard, our technicians provide a firm, written price before starting any work. If you are looking for a reliable Residential Locksmith in Chicago to secure your home, you can reach our team at (331) 202-1318 for a free, no-obligation estimate.
Many homeowners mistakenly believe that a high-security lock is enough to protect their home. However, even the most expensive Medeco or Schlage deadbolt will fail if the door frame or the strike plate is weak. We see this frequently across the city: a high-quality lock installed into a soft pine frame with short, half-inch screws that provide almost no resistance to a kick-in attempt. Our approach focuses on the entire assembly, ensuring that the hardware, the door, and the wall structure work together to create a cohesive security barrier.
When You Need Door Reinforcement
You should consider reinforcing your doors if you notice specific vulnerabilities or if your home’s security has not been updated in several years. We recommend an inspection if you identify any of the following conditions:
- Short or Loose Screws: If the screws holding your strike plate into the door frame are less than 2.5 inches long, they are likely only anchored into the door casing, not the structural stud behind it. This is a primary failure point during a forced entry.
- Splintered or Cracked Frames: If you see visible cracking around your deadbolt or strike plate, the integrity of the wood is already compromised. This often happens in older Chicago greystones where the wood has dried out or been damaged by previous break-in attempts.
- Hollow Core Doors on Exterior Entryways: A hollow core door is essentially a shell that can be kicked through easily. We advise replacing these with solid wood or steel-reinforced doors for any entrance leading directly outside.
- Visible Gaps Around the Door: Large gaps between the door and the frame allow for the easy insertion of prying tools like crowbars. We install heavy-duty security astragals-metal plates that cover the gap-to prevent this type of access.
- Outdated Strike Plates: If your strike plate is held in place by standard, short screws, it is essentially decorative. We replace these with heavy-gauge steel strike plates secured by 3-inch hardened steel screws that bite deep into the building studs.
Our Door Reinforcement Process

When we perform door reinforcement, we follow a strict protocol to ensure the highest level of security. Every job follows the Haven Standard, which prioritizes documentation and precision.
- Initial Assessment: We inspect the current condition of your door, frame, and existing locks. We check for structural rot, verify the thickness of the door, and identify the material of the surrounding wall.
- Written Quote: Before we turn a single screw, we provide a firm, written price for the reinforcement work. Under Haven Standard Clause 1, the price we quote on the phone or at your door is the price on the final invoice.
- Hardware Installation: We install high-strength strike plates, often using 3-inch hardened steel screws to anchor the plate directly into the structural stud of the home. For added security, we may install door jammers or heavy-duty hinge pins that prevent the door from being pried off its hinges.
- Alignment and Functionality: Reinforcement hardware can sometimes cause a door to bind if not installed correctly. We ensure the door swings smoothly, latches properly, and that the deadbolt engages the strike plate without resistance.
- Documentation and Verification: Upon completion, we provide a documented photo record of the work performed. This record confirms that the hardware is installed correctly and provides you with a clear history of the security upgrades made to your home.
Door Reinforcement Pricing in Chicago
We believe in radical transparency regarding costs. Because we operate as an independent locksmith, we do not use bait-and-switch tactics. Our pricing is determined by the complexity of the reinforcement and the specific hardware required for your door type.
The following price ranges represent our standard services:
| Service | Price Range |
|---|---|
| Heavy-Duty Strike Plate Install | $125 – $185 |
| Frame Reinforcement Kit | $220 – $350 |
| Security Astragal Installation | $190 – $280 |
| Hinge Pin/Hardware Reinforcement | $95 – $160 |
These prices cover the cost of the hardware, labor, and the documented photo record provided upon completion. If you are uncertain about the specific security needs of your home, please call (331) 202-1318. We provide free estimates and are happy to discuss your specific door configuration, whether you have a standard residential door or a custom entry system.
FAQs - Door Reinforcement

How much does it cost to reinforce a door frame in Chicago?
Reinforcing a door frame typically costs between $220 and $350, depending on the material of the frame and the specific reinforcement hardware required. This price includes professional installation, the use of hardened steel components, and a documented photo record of the work. Call (331) 202-1318 for a firm, written quote before we start.
Can you reinforce my door without replacing the existing lock?
Yes, we can often reinforce the door and frame while keeping your current lockset, provided the lock is in good working order. We focus on strengthening the strike plate and the surrounding frame, which are the most common points of failure, regardless of whether you use Kwikset, Yale, or another brand. If your current lock is compromised, we can discuss upgrading to a high-security cylinder during our visit.
Why do I need a 3-inch screw for my strike plate?
A 3-inch screw is essential because it is long enough to penetrate through the door jamb and deep into the structural stud of your home. Standard screws provided with most locks are often only 0.5 to 1 inch long, which means they only anchor into the soft wood of the door frame, making the door very easy to kick open. We use hardened steel screws to ensure the strike plate cannot be pulled out of the frame.
Do you offer a warranty on reinforcement work?
Yes, all of our work is backed by our 365-Day Done Right Promise. If the reinforcement hardware fails or is not performing as intended within the first year, we will make it right. We document every installation with a photo record so you have a verified history of the security measures protecting your home, adhering to the quality frameworks of the Haven Standard.
When it comes to the security of your home, there is no substitute for proper hardware and professional installation. If you are ready to secure your property, call Novak Lock & Security Chicago at (331) 202-1318 to speak with a live person and get a firm, written estimate. We have been serving the home owners of Chicago since 2002, and we are ready to help you secure your entryway.
Written by Daniel Novak, Owner at Novak Lock & Security Chicago, serving Chicago.






