Do You Need a New Lock Installed or an Existing Lock Replaced?
The correct service depends on whether the door needs a new locking position or an existing lock needs to be changed.
When Is New Door Lock Installation the Right Choice?
A new lock may be appropriate when a door has no suitable locking hardware, needs an additional lock or requires key-controlled access. We consider the door, its location and how it will be used before discussing suitable options.
The complete door and lock arrangement must be considered—not only the lock itself.
Choosing the Right Door Lock and Security Standard
The right lock depends on the door construction, location, intended use and required method of entry and exit. Any written instructions from an insurer, landlord or managing agent should also be reviewed before the product is selected.
Common Door-Lock Standards and Ratings
| Standard or rating | What it generally indicates | Important consideration |
|---|---|---|
| BS 3621 | A tested thief-resistant single-point lock operated by key from both sides | Commonly associated with suitable external timber doors |
| BS 8621 | A tested thief-resistant single-point lock operated by key from outside, with keyless exit from inside | May be relevant where keyless egress is required |
| TS 007 / SS 312 | Security ratings used for cylinders and related door hardware | The required rating depends on the door and any documented requirements |
The applicable option depends on the complete door arrangement and how the property is used. Fire doors, flat entrances and communal doors require additional consideration, which is covered in the next section.
Have a written security requirement? Send us the relevant wording before the installation. We can discuss products that may match the stated specification, but your insurer, landlord or managing agent must confirm whether the proposed option satisfies their requirement.
Need a Lock Fitted to a Fire Door, Flat or Communal Entrance?
Locks fitted to fire doors, flat entrance doors and communal entrances must be compatible with the door’s fire-safety and escape requirements. The installation must not prevent the door from closing correctly or affect its ability to resist the spread of fire and smoke.
Important: Tell us if the enquiry involves a fire door, flat entrance or communal door. We can confirm whether the requested installation is within our service scope after reviewing the available information.
Door Lock Types We Supply and Fit in Sheffield
We supply and fit common door locks for homes, rental properties and business premises across Sheffield. The appropriate option depends on the door material, available fitting space, method of operation and any confirmed security requirements.
Know What Was Installed on Your Door
Keep a clear record of your new lock installation for future maintenance, replacement parts and property documentation.
If you require particular product or installation details for your records, tell us before booking so we can confirm what information is available.
How Our Sheffield Lock Installation Service Works
From choosing the lock to testing the completed installation, here is what to expect.
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