A door hardware assessment is a systematic inspection of every door in a commercial rekeying project — documenting cylinder brand and type, hardware condition, keyway profile, and any issues that will affect the rekey. A proper assessment before work begins prevents mid-project surprises, protects your quoted margin, and gives the client a hardware inventory they can reference for the life of the building. Locksmiths who skip the assessment are gambling with their quotes and their professional reputation.
Commercial rekeying without a prior assessment is the most common cause of scope disputes in locksmith work. The technician arrives on-site expecting standard Schlage cylinders and finds a mix of brands, worn hardware, non-standard mortise locks, and two doors that have been drilled out and need replacement. The client was quoted for a straightforward rekey; the invoice reflects something substantially more complex. The dispute that follows damages the relationship even when the locksmith did nothing wrong.
What a Door Hardware Assessment Covers
Cylinder Inventory
Every door in the project scope needs a cylinder record: manufacturer, model, keyway, number of pins, and condition. This is the foundation of every decision that follows — keyway compatibility, key blank selection, pinning space available, and whether any cylinders need replacement before rekeying.
For a master key system project, the cylinder inventory is also the basis for the key symbol assignments. You cannot assign key symbols until you know how many cylinders are in the system and what hardware they use.
Hardware Condition Assessment
Cylinder condition determines whether a cylinder can be successfully rekeyed or needs replacement:
- Smooth operation — Does the plug rotate freely with the existing key? Does it return cleanly? Binding or grinding indicates worn pins, a damaged plug, or debris in the cylinder.
- Keyway wear — Heavy wear marks at the keyway entrance indicate a cylinder that has seen heavy use. Worn keyways allow more key tolerance, which can affect pinning precision.
- Face condition — Scratches around the keyway can indicate picking or bypass attempts. Drill marks on the face indicate forced entry. Either condition warrants cylinder replacement rather than rekeying.
- Spring and driver condition — Springs weaken over time, leading to sluggish key operation. Driver pins that have worn flat affect pick resistance. These are not visible without disassembly, but sluggish operation is a reliable indicator.
- Housing condition — Loose cylinder housings, damaged cam slots, and worn tailpieces affect cylinder retention and operation. Hardware in this condition should be flagged for replacement regardless of whether the cylinder can be rekeyed.
Door Frame and Hardware Compatibility
For projects that include new cylinder or hardware installation, the door frame and existing hardware must be assessed for compatibility:
- Mortise vs. cylindrical hardware — Mortise cylinders and cylindrical cylinders are not interchangeable. Identify the hardware type before ordering any replacement cylinders.
- Cylinder diameter and cam length — Commercial mortise cylinders come in multiple diameters and cam lengths. The correct specification must match the existing hardware or be selected to match the new hardware being installed.
- Electrical considerations — Doors with electric strikes, magnetic locks, or electronic access control components have wiring considerations that affect the mechanical hardware specification.
- Clearance and throw — On high-traffic doors, door clearance and deadbolt throw length affect which hardware will function correctly after installation.
Keyway Compatibility for Master Key Projects
For commercial master key projects, the assessment must identify any keyway incompatibilities that will require cylinder replacement before the master key system can be installed:
- All cylinders in a master key system must use the same keyway family (though multiple restricted keyway profiles within a manufacturer's line can sometimes be used for zone separation)
- Cylinders from incompatible keyway families cannot be re-pinned into the master key system — they must be replaced
- Identifying these incompatibilities during the assessment prevents a mid-project hardware order that delays the project and surprises the client with additional cost
How to Document a Hardware Assessment
The assessment documentation is a deliverable, not just internal notes. A client who receives a formatted hardware assessment report — showing every door, every cylinder type, every condition flag, and your recommendations — has a document they will reference for the life of that building.
For each door, the assessment record should capture:
- Door number or location identifier
- Current cylinder manufacturer and model
- Keyway profile
- Hardware type (cylindrical, mortise, rim, padlock)
- Condition rating (Good / Fair / Needs Replacement)
- Specific issues noted (worn keyway, sluggish operation, damaged face, etc.)
- Recommendation (rekey, replace, or defer)
- Estimated cost for recommended work
The condition rating and recommendation fields are the ones that protect your quote. When the client sees that Door 14 was flagged for cylinder replacement during the assessment — and they approved the scope that included replacement hardware — there is no dispute when the invoice reflects that replacement.
Turning Assessment Data Into Job Records
An assessment that lives on paper or in a spreadsheet is better than nothing. An assessment that lives in your job software — linked to the client, the site, and the master key hierarchy — is the foundation of a long-term commercial relationship.
Each cylinder in the assessment becomes a cylinder record in your system, with its keyway, pinning specification, and condition history. When that cylinder is serviced again in three years, the technician who shows up has the complete history: what was found at the original assessment, what was done, and what the current spec is.
This is the record-keeping model that commercial clients are actually paying for — not just rekeying service, but the permanent, accessible documentation of their building's access control history.