Deadbolt Installation Ottawa: Choosing and Fitting the Right Lock for Your Door

What Deadbolt Installation Involves

Deadbolt installation is more than driving a new lock into an existing hole. It starts with checking whether the door itself can support the hardware, then confirming the bore diameter, backset measurement, and door thickness match the deadbolt you're putting in. We also inspect the frame, since a brand-new deadbolt paired with a soft or splitting strike plate area will fail the first time someone tests the door with force.

On existing doors, we're often reusing the bore left by a previous lock. On new doors, or when a customer wants a different bolt size, we cut a fresh bore using a hole saw jig to keep everything centred and square. Either way, the goal is a deadbolt that throws fully into the frame without binding, rattling, or requiring you to lift the handle to get it to catch.

Signs You Need a New or Upgraded Deadbolt

• The key sticks, requires wiggling, or needs to be pulled out at an angle
• The bolt doesn't extend fully into the strike plate, leaving a visible gap
• You have to slam or lift the door to get the deadbolt to turn
• The exterior cylinder is loose, scratched from a break-in attempt, or spins freely
• You moved into a home recently and don't know who else has a key
• The current lock is a builder's-grade deadbolt that came standard with new construction
• You've had a break-in, attempted break-in, or a lock that was drilled or picked

Any one of these on its own might just call for adjustment. Two or three together usually means the hardware has reached the end of its useful life.

Common Causes of Deadbolt Failure

Ottawa's freeze-thaw cycle is harder on exterior hardware than most homeowners realize. Moisture gets into the strike plate area over winter, the wood swells, and by spring the bolt no longer lines up the way it did in the fall. We see this constantly on doors facing west or south, where sun exposure dries and shrinks the frame unevenly through the year.

Beyond weather, the other frequent culprits are years of accumulated grit inside the cylinder, a strike plate held on with short builder's screws that slowly work loose, and simple metal fatigue after tens of thousands of turn cycles. On rental properties, repeated key changes without proper rekeying can also leave a cylinder more worn than its age would suggest.

Repair vs. Replacement: How We Decide

We don't default to replacement just because a lock is giving trouble. If the housing and bolt mechanism are intact and the issue is a worn cylinder, dirty pins, or a misaligned strike plate, adjustment or a rekey often solves it for a fraction of the cost of new hardware.

Replacement makes sense when the bolt itself is bent, the cylinder has been drilled or picked, the deadbolt is a low-grade builder's model that never performed well to begin with, or the customer wants to upgrade to a smart lock, higher security grade, or a keyed-alike system across multiple doors. We'll always tell you honestly which category your situation falls into before recommending a specific fix.

Residential Deadbolt Installation

For homes, the front and back entry doors carry the most risk and get the most attention. We commonly install single-cylinder deadbolts on entry doors, though homes with a glass panel near the lock sometimes benefit from a double-cylinder version that requires a key on both sides. We also handle deadbolts on side entrances, garage-to-house doors, and basement walkouts, which are frequently overlooked despite being common entry points.

Families moving into an older home in areas like Orleans or Carleton Place often ask us to replace every exterior deadbolt at once rather than rekey, simply because the age and condition of the hardware makes a fresh start more sensible than working around what's already there.

Commercial Deadbolt Installation

Commercial doors take far more daily cycles than a residential entry, so we generally recommend Grade 1 hardware for storefronts, office suites, and multi-unit buildings. Many commercial properties also need deadbolts integrated with panic hardware, keyed-alike master systems, or electronic access control, which changes the installation approach considerably from a standard home fit.

We regularly work with property managers across Kanata and downtown Ottawa who need consistent hardware across several units, along with a documented key system so they know exactly who holds access to what.

Types of Deadbolts We Install

• Single-cylinder deadbolts – keyed from outside, thumb-turn inside; the standard choice for most homes
• Double-cylinder deadbolts – keyed on both sides, often used where glass is near the lock
• High-security deadbolts – reinforced cylinders resistant to drilling, bumping, and picking
• Smart deadbolts – keypad or app-controlled, sometimes paired with existing key cylinders
• Commercial-grade deadbolts – built for high-cycle use and often paired with master key systems

Preventative Maintenance

• Apply a small amount of graphite or dry lubricant to the cylinder once or twice a year, never oil-based products which attract grit
• Check that the strike plate screws are snug, especially heading into winter
• Test the deadbolt with the door open to catch alignment issues before they get worse
• Wipe down exterior cylinders after freezing rain to prevent ice buildup inside the mechanism

What Happens During a Service Call

We start by testing the existing lock and door alignment on-site rather than assuming the problem based on a phone description. From there we confirm the bore size, backset, and door thickness, walk you through hardware options at a couple of price points, and give you a firm quote. Once you approve it, we complete the installation, test the bolt throw and strike alignment thoroughly, and walk you through the new hardware before we leave.

Safety Tips

• Never leave a spare key under a mat, planter, or fake rock; use a lockbox with a rotating code instead
• Rekey immediately after moving into a new home, even if the existing locks look new
• Don't rely on a deadbolt alone if the door has a weak frame; the strike area needs reinforcement too
• Avoid big-box store lock installations advertised as universal fits without checking your door's actual specs first

Why Professional Installation Matters

A deadbolt is only as strong as its weakest connection point, and that's rarely the lock itself. Most of the failures we get called out to fix trace back to a strike plate mounted with short screws, a bore drilled slightly off-centre, or hardware mismatched to the door thickness. None of these mistakes are visible until the door is tested under real force, which is exactly when you don't want to discover them.

Why Local Service Matters

We're based in Ottawa and cover the surrounding Valley, including Kanata, Nepean, Orleans, Barrhaven, Stittsville, Arnprior, Carleton Place, and Rockland. That means we know the housing stock in each area, from the older frame construction common in parts of the core to the newer builds going up in Barrhaven and Stittsville, and we carry hardware suited to both on the truck rather than guessing and coming back a second time.