Hear from Our Customers
That’s what door hardware should do. No two-minute wrestling match with your deadbolt. No wondering if today’s the day it finally breaks completely.
When your door knob replacement is done right, you don’t think about it anymore. The lever turns smoothly. The latch catches every time. Your hands are full of groceries, your kid’s backpack, your coffee—and the door still opens without a fight.
You also stop wondering who has keys from three owners ago. New hardware means new keys, and that means you actually know who can get into your house. That’s not paranoia—34% of burglars use the front door, and worn-out locks with mystery keys floating around don’t help.
Professional installation means the hardware fits your door correctly. The strike plate lines up. The latch doesn’t drag. The screws go into solid wood, not just the trim. It’s the difference between something that works and something that works for years.
We’ve been handling locksmith work since the late 1800s. That’s not a typo. Tom McCausland and his daughter Chrissy run the largest locksmith operation in the Delaware Valley today, and they’re the fourth generation to do it.
When you call us for door knob installation in Moylan, PA, you’re not getting someone who watched a YouTube video last week. You’re getting a crew that’s seen every type of door, every weird retrofit, every “the previous owner did what?” situation you can imagine.
We stock OEM parts from Kwikset, Medeco, and Schlage because those are the brands that last. We don’t upsell you into smart locks if a solid mechanical lever is what you need. And if you do want electronic access, we install it so it actually works—not just on day one, but next winter when the temperature drops and cheaper installs start acting up.
Moylan homeowners deal with older housing stock, narrow door frames, and vintage hardware that doesn’t match modern standards. We’ve handled all of it, and we know how to make new door knobs work without tearing apart your doorframe or pretending everything’s standard when it’s not.
You tell us what’s going on—lock’s broken, you just moved in, you want an upgrade, whatever. We ask a few questions about your door type and what you’re dealing with, then schedule a time that doesn’t wreck your day.
We show up with the parts and tools already in the truck. If you’ve already bought hardware, great—we’ll install it. If not, we’ll show you options that actually fit your door and your budget. No pressure, just information.
The old hardware comes off. We check the door itself—thickness, bore size, backset measurement—to make sure the new knob fits correctly. If something’s off, we fix it before the new hardware goes on. That’s the part most people skip, and it’s why their install fails six months later.
New knob goes in, aligned and tightened properly. We test it a dozen times. You test it. If it’s a keyed lock, we make sure your new keys work smoothly and hand you however many copies you need. Then we clean up and get out of your way.
The whole job usually takes 30 to 45 minutes per door unless there’s a problem with the door itself. If there is, we tell you what it’ll take to fix it—and what happens if you don’t. Then you decide.
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You get the labor, the expertise, and the installation done without damaging your door. That last part matters more than people think—drill the bore hole wrong and you’ve just ruined a solid wood door that costs $800 to replace.
We bring the tools that make the job clean: hole saws, strike plate jigs, precise measuring gear. If your door’s already prepped and you just need the knob swapped, it’s straightforward. If we’re retrofitting new hardware into old doors, we do it right so the new lock doesn’t wiggle or sit crooked.
Moylan’s housing mix includes everything from post-war Cape Cods to newer construction off West Chester Pike. Older homes often have non-standard door prep, which means the $40 big-box lever won’t fit without modification. We handle that. Newer homes sometimes have hollow-core interior doors that need reinforcement for certain locks. We handle that too.
If you’re upgrading to a smart lock or electronic deadbolt, we install it so the batteries last, the sensor works in all weather, and the backup key override actually functions when your phone dies. A lot of DIY installs skip the weatherproofing step, and then the electronics fail after one winter freeze.
You also get honest advice about what’s worth spending money on. A bedroom door doesn’t need a $200 lever. Your front door shouldn’t have a $15 one. We’ll tell you the difference and let you make the call.
Labor typically runs between $80 and $150 per door knob, depending on the complexity. A simple swap on a prepped door with standard measurements sits at the lower end. Retrofitting new hardware into old doors, installing smart locks, or dealing with damaged door prep pushes it higher.
That doesn’t include the hardware itself unless we’re supplying it. If you buy your own knob, make sure it matches your door’s backset and bore size, or we’ll need to modify the door to make it fit—which adds time and cost.
The price also reflects the fact that we’re not going to crack your doorframe, strip your screws, or leave you with a knob that wobbles. Cheap installs cost more in the long run when you’re calling someone else to fix the damage.
You can install one yourself if your door’s already prepped, the new knob matches the old measurements exactly, and you’re comfortable with basic tools. Swapping a bedroom privacy lock is pretty straightforward.
Where it gets tricky: boring new holes, adjusting the strike plate, retrofitting modern locks into vintage doors, or installing anything electronic. Get the bore hole off by a quarter inch and your door won’t latch. Mount the strike plate wrong and your deadbolt won’t catch. Skip the reinforcement on a hollow door and someone can kick it in with one try.
Professional installation means it works correctly and doesn’t damage your door. It also means you’re not buying the wrong hardware twice because the first one didn’t fit. For exterior doors especially, this isn’t the place to learn on the job—your security depends on it being done right.
A knob is round and you twist it. A lever has a handle you push down. That’s the basic difference, but it matters more than you’d think.
Levers are easier to operate when your hands are full, wet, or you’ve got arthritis. You can open a lever door with your elbow. You can’t do that with a knob. That’s why commercial buildings and newer homes default to levers—they’re accessible and functional.
Knobs are fine for interior doors where accessibility isn’t an issue, and some people just prefer the look. Both can be secure if they’re quality hardware installed correctly. The choice comes down to how you use the door and what works for your household. If you’ve got kids, elderly family, or you’re constantly hauling stuff in and out, levers make life easier.
A quality knob installed correctly should last 10 to 15 years of regular use, sometimes longer. That assumes you’re using OEM parts from brands like Schlage, Kwikset, or Medeco—not the bargain bin stuff that’s mostly plastic inside.
What kills door hardware early: improper installation that puts stress on the mechanism, using a deadbolt as a handle to pull the door shut, or exterior locks that aren’t weatherproofed. Moisture gets into cheap locks and freezes or corrodes the internals. Then you’re replacing it in two years instead of ten.
We use OEM parts and install them so the stress distributes evenly across the door. That means the lock doesn’t work harder than it should every time you use it. It also means when something eventually does wear out, you’re replacing a $12 cylinder instead of the entire lockset.
No. Replace what’s broken or what’s a security risk. If you just moved into a house in Moylan, replace the exterior locks first so you control who has keys. Interior knobs can wait unless they’re malfunctioning.
That said, there’s a cost efficiency to doing multiple doors in one visit. We’re already there, the tools are out, and you’re saving on trip fees. If three of your doors need work, it makes sense to handle them together.
If you’re upgrading for aesthetics and want everything to match, you can phase it over time. Do the front door and main entry points first. Bedrooms and closets can happen later. Just keep the old hardware consistent in the meantime so your house doesn’t look like a hardware store exploded.
First, try lubricating it with graphite powder or a dry silicone spray—not WD-40, which gums up lock mechanisms over time. If that doesn’t help, the problem’s usually alignment or worn internals.
Alignment issues happen when your house settles, the door sags, or the strike plate shifts. The latch is hitting the frame wrong, so the knob has to fight to turn. That’s fixable, but it requires adjusting the strike plate or rehinging the door slightly.
Worn internals mean the lock mechanism itself is failing. Springs weaken, tumblers wear down, the cylinder gets sloppy. At that point, you’re replacing the knob or rebuilding it—and rebuilding usually costs more than a new one unless it’s high-end hardware.
If you’re in Moylan and your door knob’s giving you trouble, call us. We’ll tell you whether it’s a $10 fix or time for a replacement. Either way, you’ll know what you’re dealing with instead of guessing.
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