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.
Medeco Deadbolt Installation: The New York City Owner’s Guide
Medeco deadbolt installation in New York City typically runs $285-$475 per lock, including the cylinder, labor, and a written warranty. We stock Medeco-compatible cylinders and tailpieces on our trucks and can usually complete a deadbolt swap the same day you call. Most owners discover a problem when the key stops turning smoothly, the bolt won’t fully throw, or the cylinder spins freely in the door without engaging anything.
The Medeco name means the lock was built to a higher standard than the entry-grade hardware on most apartment doors. When a Medeco deadbolt fails, it’s rarely the cylinder itself. What fails is almost always the hardware around it: the tailpiece that connects cylinder to bolt, the strike plate alignment, or the bolt assembly that’s been grinding against a misaligned frame for years. We diagnose the actual failed part before quoting a replacement, because replacing a $285 cylinder when the real problem is a $12 tailpiece is not how Novak Lock & Security works.
Key takeaways:
- Installed Medeco deadbolt work in New York City runs $285-$475, quoted in writing before dispatch.
- We stock OEM Medeco cylinders and compatible hardware on the truck for same-day service.
- The price on the phone is the price on the invoice. Haven Standard Clause 1. No exceptions since 2002.
- Most Medeco deadbolt failures are hardware problems, not cylinder problems. We identify the actual failure before quoting.
Which Medeco Models This Applies To
We work on the full Medeco residential and commercial deadbolt line: the Maxum, the 11 Series (including the 1132 and 1155 models), the single-cylinder and double-cylinder configurations, and the older Medeco Classic and Medeco Biaxial locks still turning on thousands of New York City doors. Each series uses a different tailpiece length and cylinder body profile, and the mistake we see most often is an owner buying a Maxum cylinder for an 11 Series housing or vice versa. They don’t interchange.
Here’s the compatibility check that matters: remove the thumbturn or keyed cylinder from the interior side and measure the tailpiece length from the back of the cylinder to the tip. Medeco uses several tailpiece lengths – 7/8 inch, 1 1/8 inch, and 1 3/8 inch on the residential deadbolts – and a 1/4 inch difference means the bolt won’t fully retract or won’t fully throw. The cylinder face will also have a model stamp. Write down what it says before you call us, or send a photo. It shortens the call and gets the right part on the truck the first time.
On OEM versus aftermarket for Medeco specifically: Medeco cylinders are UL 437 rated, which means they’re designed and tested to resist picking, drilling, and bumping. We install genuine Medeco cylinders on Medeco locks. Aftermarket equivalents from the big hardware distributors will physically fit some models, but the machining tolerance on Medeco cylinders is deliberately tight, and aftermarket tailpieces typically seat with more play. That play translates to a deadbolt that feels loose and wears faster. Novak Lock & Security is an independent service provider, not affiliated with Medeco. We stock OEM parts because a high-security lock belongs to a system, not a single component.
Signs Your Medeco Deadbolt Installation Is Failing

- The key turns but the bolt barely moves. This is almost always a tailpiece failure. The tailpiece strips or cracks where it connects to the bolt drive mechanism, and the key turns against nothing. Medeco tailpieces are hardened steel, but after 15-20 years of daily use in a New York City apartment door, fatigue happens.
- The bolt won’t fully extend into the strike plate without lifting the door. Seasonal frame movement is real in New York City. Brick buildings shift through freeze-thaw cycles, and a deadbolt that worked fine in August binds in February. The bolt isn’t failing; the alignment is. We correct the strike plate or rehang the door rather than forcing a new lock into a misaligned frame.
- The cylinder spins freely when you try to lock. This means the cylinder retaining screws or the mounting plate have loosened, or the screw holes stripped. The cylinder works but nothing passes through to the bolt. Temporary fix is tightening; the real fix is replacing the mounting hardware with properly sized machine screws.
- The key inserts fine but you have to jiggle it to get the pins to engage. On Medeco locks, this usually means accumulated grime or a worn key, not a failing cylinder. We cut new keys to code or clean the cylinder before recommending replacement, because a $15 key replacement beats a $300 cylinder swap.
- The thumbturn turns but the deadbolt catches halfway. This points to a broken return spring in the bolt assembly. The bolt is mechanical and can be replaced independently of the cylinder. That’s a $45-$65 parts fix, not a full deadbolt replacement.
Replacement Cost & What’s Included
Installed Medeco deadbolt work in New York City runs $285-$475 per lock, depending on the model, whether we’re replacing the cylinder only or the full deadbolt assembly, and whether the existing door prep matches the new hardware. A single-cylinder Maxum on a standard 2 1/8 inch bore sits at the lower end. A double-cylinder 11 Series with custom tailpiece fitting on a door that needs strike plate correction lands higher. You’ll know the figure before we dispatch.
| Service | Typical Range (NYC) |
|---|---|
| Medeco cylinder replacement (OEM, single-cylinder) | $285-$350 installed |
| Full Medeco deadbolt swap (cylinder + bolt + strike) | $350-$475 installed |
| Bolt assembly replacement only (cylinder retained) | $145-$195 installed |
| Tailpiece or hardware repair | $95-$145 installed |
| Strike plate correction / frame alignment | $85-$165 installed |
Every quote includes the part, labor, installation, and adjustment. We photograph the finished work, document the cylinder and hardware installed, and leave you a written record. The 365-Day Done Right Promise covers the installation: if something isn’t right within a year, we come back and make it right at no charge.
DIY or Call Us?

A Medeco deadbolt swap looks simple from the outside: two screws, the old cylinder out, the new cylinder in. And on a newer door with clean prep holes and a properly aligned frame, a careful owner with a screwdriver can usually handle a straight cylinder swap. The thing that catches people is alignment. The tailpiece has to seat squarely into the bolt drive mechanism, and on a door that’s been through a few New York City winters, the prep holes are rarely square anymore.
What we tell owners to check themselves: is the key turning smoothly in the cylinder, or is the cylinder itself the problem? Is the door sagging, or is the strike plate obviously misaligned? If you’re comfortable removing the two interior screws, you can inspect the tailpiece and see what’s actually broken. But if you’re dealing with a double-cylinder deadbolt on a fire-rated door, or a commercial Medeco mortise conversion, call us. Misaligned high-security hardware fails prematurely, and a deadbolt that binds halfway is worse than no deadbolt. Call (331) 310-8471 and we’ll quote the job in writing before we come out.
FAQs
A properly installed Medeco deadbolt on a New York City apartment or brownstone door typically lasts 15-25 years before the cylinder needs service, though the bolt assembly and tailpiece often need attention around the 10-15 year mark. Coastal areas like the Rockaways or high-humidity basement units accelerate corrosion on the bolt assembly. Call (331) 310-8471 to have us assess your specific lock.
Yes, in most cases the cylinder itself is fine and the failure is in the tailpiece, bolt assembly, or strike alignment. We quote the repair honestly because replacing a $300 cylinder to fix a $12 part is a waste of your money. We’ll tell you what actually failed and what it costs to fix before any work starts.
A standard single-cylinder Medeco deadbolt swap takes 30-45 minutes once we’re at the door. A full assembly replacement with strike plate correction runs 60-90 minutes. Call (331) 310-8471 and we’ll give you a real arrival window and a firm price before dispatch.
We stock OEM Medeco cylinders, tailpieces, and bolt assemblies for the Maxum and 11 Series on our trucks, along with compatible hardware for Schlage and Kwikset deadbolts. For less common Medeco models we can usually have parts in hand within 24-48 hours. Call (331) 310-8471 and tell us the model stamp on your cylinder face, or send a photo, and we’ll confirm stock before we schedule.
Written by Daniel Novak, Owner, Novak Lock & Security at Novak Lock & Security, serving New York City and nearby areas.
Daniel Novak grew up in Astoria, Queens, two blocks from the elevated N train, and has been working New York City doors, deadbolts, and cylinders for going on two decades. He learned the trade at Queensborough Community College before apprenticing under a retired locksmith who serviced Midtown commercial accounts. The name on the van is the same name on the invoice. Call (331) 310-8471 for a free estimate on Medeco deadbolt installation in New York City, quoted in writing before any work begins.






