Hear from Our Customers
A properly installed door knob does more than turn. It latches smoothly every time, locks without forcing, and doesn’t loosen up after a few weeks of use.
You’re not dealing with a loose handle that jiggles or a latch that only works if you lift the door just right. The knob sits flush, the strike plate lines up, and the mechanism operates the way it should.
That’s what happens when someone who knows door hardware—not just how to follow instructions—handles the installation. The difference shows up in how your door feels when you use it every day. Solid. Secure. Done right.
The McCausland family has been in locksmithing since the late 1800s. Chuck and Tom McCausland represent the fourth generation, running the largest locksmith company serving the Delaware Valley area from our storefront on Lincoln Avenue in Prospect Park.
We’re not new to Springfield, PA or Delaware County. We’ve been the local option for residential locksmith work, door lever installation, and lock services for decades because we show up, we know what we’re doing, and we use better hardware than what you’ll find at the big box stores.
You’re working with technicians who are members of the American Locksmith Association of Pennsylvania. Licensed, local, and available when you need us—including same-day service for most jobs.
First, we assess the door and frame. If you’re replacing an old knob, we check whether the existing bore holes line up with your new hardware or if adjustments are needed. Doors settle over time, and sometimes the frame shifts slightly—that affects how the latch engages.
Next, we prep the door. If the new knob requires a different backset or bore size, we make those modifications cleanly. If the strike plate needs repositioning or the door needs planing to close properly, we handle that too. A knob won’t work right if the door doesn’t fit the frame correctly.
Then we install the hardware. The latch goes in first, then the knob assembly, making sure everything aligns and operates smoothly before tightening it down. We test the lock, the latch, and the overall function before calling it done. You shouldn’t have to slam your door to get it to latch, and you won’t.
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You’re getting professional installation with quality hardware. We carry brands like Emtek and other OEM products that outlast the factory-grade stuff sold at retail chains. The materials cost more, but they don’t fail in a year.
In Springfield, PA and surrounding Delaware County areas, we see a lot of new construction with builder-grade locks that homeowners want upgraded. We also handle older homes where the original hardware has worn out or doors have shifted due to settling. Both situations need someone who understands how door hardware interacts with the frame, not just how to screw in a knob.
The installation includes the knob or lever, the latch assembly, strike plate, and any necessary adjustments to the door or frame. If you’re upgrading to keyed entry locks, we’ll rekey them to match your existing keys or set up a new key system. Same-day service is available for most jobs—no appointment needed in many cases.
For a standard passage knob—the kind used on closets or hallways that don’t lock—you’re typically looking at $95 to $135 per door. That includes labor and materials.
If you need a keyed entry knob for an exterior door or a privacy knob for a bathroom, the cost runs $110 to $155 per door. The price difference comes from the lock mechanism and the additional time required to install and set up the keying.
These numbers assume the door and frame are in decent shape. If we need to drill new holes, reposition the strike plate, or adjust the door to close properly, that adds to the cost. We’ll let you know upfront if your situation requires extra work. Most jobs in Springfield don’t—but older homes sometimes need a little more attention to get everything lined up right.
Yes, in most cases. We offer same-day service for door knob installation and other locksmith services when our schedule allows, and we don’t require an appointment for many jobs.
If you call in the morning, there’s a good chance we can get to you that afternoon. If it’s later in the day, we’ll let you know whether we can fit you in or if the next morning works better.
Emergency situations—like a broken lock after a break-in attempt or a malfunctioning knob that’s left you locked out—get priority. For standard installations and upgrades, we move as quickly as we can without rushing the work. The goal is to get your door functioning properly, not just to get it done fast.
A door knob is round and requires you to grip and turn it to operate the latch. A door lever has a handle you push down, which takes less effort and works better for people with arthritis or limited hand strength.
Levers are also easier to operate when your hands are full. If you’re carrying groceries or laundry, you can push a lever down with your elbow or forearm. You can’t do that with a knob.
Functionally, both do the same job—they retract the latch so the door opens. The choice comes down to accessibility and preference. We install both, and we can help you decide which makes more sense for each door in your home. Exterior doors, interior doors, and bathrooms all have different requirements, and the hardware should match how you actually use the space.
No. You can replace them one at a time or tackle the whole house in one go—whatever fits your budget and timeline.
Most people start with the doors that get used the most: the front door, back door, and master bedroom. Those are the ones where you’ll notice a quality upgrade immediately. After that, you can work through the rest of the house as needed.
If you’re rekeying locks, though, it sometimes makes sense to do all the exterior doors at once so they operate on the same key. That way you’re not juggling multiple keys every time you leave the house. Interior doors don’t need to match your exterior locks, so those can happen whenever you’re ready. We’re not here to upsell you on work you don’t need right now.
Most modern door knobs use a standard 2-1/8″ bore hole and either a 2-3/8″ or 2-3/4″ backset, so there’s a good chance your new hardware will fit the existing holes without modification.
Older homes sometimes have non-standard sizes, especially if the original hardware was installed decades ago. In those cases, we can either find hardware that fits your existing prep or modify the door to accept standard-sized knobs.
We measure everything before we start. If your door needs adjustments, we’ll tell you what’s involved and whether it makes more sense to adapt the hardware or enlarge the holes. Either way, the end result is a knob that fits correctly and operates smoothly. You won’t end up with gaps, loose plates, or a latch that doesn’t line up with the strike.
We install both. Traditional keyed knobs and levers are still the most common request, but smart locks are becoming more popular—especially for front doors and garage entry doors.
Smart locks let you unlock your door with a smartphone, key fob, or code instead of a physical key. Some models still include a keyhole as a backup, which is a smart move if the battery dies or the electronics fail.
The installation process is similar to a standard lock, but smart locks require a bit more setup to connect them to your phone or home system. We handle that part too. If you’re not sure whether a smart lock makes sense for your situation, we can walk you through the pros and cons based on how you actually use your doors. The technology works well when it fits your routine—not just because it’s new.
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