Hear from Our Customers
Your door knob should turn smoothly every single time. No wiggling the handle. No forcing the latch. No wondering if it’s actually locked when you leave for work.
When door hardware gets installed wrong, you deal with binding knobs, misaligned strike plates, and locks that don’t catch. That’s not just annoying. It’s a security risk.
We’ve been installing door knobs and levers across Newtown and Bucks County for over 140 years. Four generations of the McCausland family have handled every type of door hardware issue you can imagine. We know exactly how tight those screws need to be, how the bolt should align with your door frame, and which hardware actually holds up in Pennsylvania weather.
You get door knobs that work the way they’re supposed to. Smooth operation. Solid security. No callbacks because something wasn’t lined up right the first time.
McCausland Lock Service is the largest locksmith operation in the Delaware Valley. Tom McCausland and his daughter Chrissy run the business today, continuing what our family started in the late 1800s.
We’re not a van with a phone number. We have a storefront in Prospect Park and fully equipped mobile workshops that serve Newtown and all of Bucks County. When you call, you’re getting locksmiths who’ve seen every door hardware problem that exists.
Newtown homeowners know us because we show up when we say we will, we explain what needs to happen before we touch anything, and we use OEM parts from Kwikset, Schlage, and Medeco. You’re not getting generic hardware that fails in six months.
You call or contact us with your door hardware issue. We ask a few questions about what’s going on and schedule a time that works for you.
Our technician shows up in a fully stocked mobile workshop. We’re not running to the hardware store mid-job. We assess your door, check the alignment, and explain exactly what needs to happen. Before we do anything, you know what it costs.
We remove your old hardware carefully so we don’t damage your door or frame. We install the new door knob or lever, making sure the bolt aligns perfectly with the strike plate and the screws are tightened evenly. We test it multiple times to confirm smooth operation and proper latching.
If you need rekeying, additional locks, or security upgrades, we handle it during the same visit. You don’t need to schedule someone to come back. We finish the job completely before we leave.
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We install all types of residential door hardware. Interior door knobs, exterior lever sets, deadbolts, handlesets, and ADA-compliant lever handles. If it goes on a residential door in Newtown, we’ve installed it.
You get OEM parts from the manufacturers we trust: Kwikset, Schlage, and Medeco. These aren’t bargain-bin knobs that loosen up after a few months. They’re built to last, and we install them correctly so they actually do.
Newtown homes range from historic properties in the borough to newer construction in surrounding developments. We’ve worked on all of them. Older doors sometimes need adjustments before new hardware goes on. Newer doors might have pre-drilled holes that don’t match your chosen hardware. We handle those issues on-site without making you wait for another appointment.
If your door knob is part of a larger security concern, we address it. Need to rekey your locks after buying a home? Want to upgrade to smart locks? We do the complete job while we’re there. One visit, everything handled.
Installation cost depends on the hardware you choose and how many doors need work. A basic interior door knob installation runs less than a full exterior handleset with deadbolt.
We give you the exact price before starting. No surprises, no “we found another issue” upcharges unless you actually want additional work done. Most Newtown homeowners spend between the cost of quality hardware plus labor for professional installation.
The real cost comparison is this: DIY installation gone wrong means you’re buying the hardware twice, possibly damaging your door, and still calling a locksmith to fix it. We do it right the first time with OEM parts that last. You’re paying for 140 years of experience and the largest mobile locksmith fleet in the Delaware Valley.
Overtightening the screws. When you crank those screws down too hard, the door knob binds. It won’t turn smoothly, and the mechanism wears out fast.
The second most common mistake is installing the bolt at a slight angle. It looks fine until you try to close the door and the latch doesn’t catch in the strike plate. Now you’re shimming the strike plate or rehinging the door to fix an alignment issue that shouldn’t exist.
People also rush through without understanding how the lock parts fit together. They force pieces that don’t quite line up, strip screws trying to make it work, or install the whole thing backwards. We see these DIY attempts regularly across Newtown. The hardware is usually fine, but the installation created problems that didn’t need to exist.
A straightforward door knob replacement on a standard door takes about 20 to 30 minutes. That’s removing the old hardware, installing the new knob or lever, and testing everything to make sure it operates smoothly.
More complex jobs take longer. If you’re upgrading from a passage knob to a locking lever, we might need to drill additional holes. Exterior handlesets with deadbolts require more precise alignment and take closer to 45 minutes per door.
If your door has alignment issues, damaged holes from previous hardware, or needs adjustments before new hardware goes on, we handle that during the same visit. We don’t leave until the job is done correctly. Most Newtown service calls for multiple doors are completed in under two hours, including any rekeying or security upgrades you want done at the same time.
Yes. Door levers are easier to operate than round knobs, especially for anyone with arthritis, limited hand strength, or mobility issues. We install ADA-compliant lever handles throughout Newtown homes.
Lever handles require less grip strength and work better for elderly residents or anyone who needs accessible door hardware. They’re also a smart choice if you’re aging in place or preparing a home for resale to meet broader buyer needs.
We carry lever options from Kwikset, Schlage, and Medeco that meet accessibility standards without looking institutional. You get hardware that functions better and still matches your home’s style. Installation is the same process as a standard door knob, but we make sure the lever operates smoothly and the latch mechanism doesn’t require excessive force to engage.
We handle that on-site. Sometimes the new hardware has a different backset or requires larger holes than what’s currently drilled in your door. Our mobile workshops carry the tools to adjust hole sizes, reposition strike plates, or adapt the installation to fit your chosen hardware.
Older Newtown homes sometimes have non-standard door preparations. Historic properties might have unusual door thicknesses or vintage hardware holes that don’t match modern knobs. We’ve dealt with every variation and know how to make new hardware work without compromising your door’s integrity.
If the holes are damaged from previous hardware or stripped screws, we repair that before installing anything new. You’re not getting a door knob held in with wood filler and hope. We do the prep work correctly so your new hardware mounts solidly and operates the way it should for years.
Yes. If your door knob breaks and you’re locked in, locked out, or dealing with a security issue, we respond fast. Most emergency calls in Newtown and Bucks County get a response within 20 to 30 minutes.
We arrive in a fully equipped mobile workshop with the parts and tools needed to fix or replace your door hardware immediately. You’re not waiting days for an appointment or making do with a broken lock.
Emergency situations we handle regularly: broken door knobs that won’t turn, exterior locks that won’t latch, stuck deadbolts, and door hardware failures that leave your home unsecured. We get you back to normal quickly without damaging your door or frame. If the hardware needs replacement, we install quality OEM parts on the spot so you don’t have a temporary fix that fails again next month.
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