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Grille lock replacement and upgrades · BT40 · County Antrim

Grille lock replacement and upgrades in Larne

Lost keys or a worn lock in Larne? We replace or upgrade grille locks, priced before work starts.

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Key in the cylinder lock of a black grille lock box
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What is the price of grille lock replacement in Larne?

Most grille lock replacements in Larne cost £150 to £354 including VAT (£125 to £295 plus VAT) per lock fitted. Upgrades such as quick-release or restricted-key cylinders are priced before work goes ahead.

Grille lock replacement means fitting a new cylinder, lock body or complete lock box to an existing security grille. It is the quick fix for lost keys, worn or seized locks and moving into a property with unknown keys, and a chance to upgrade to a stronger or quick-release lock.

What is included

  • Complete lock box replacement
  • Quick-release conversions for escape windows
  • Lock work on most grille makes
  • Padlock hasp conversions
  • Keyed-alike and master-key suites
  • Upgrades to higher-security cylinders

Visits in Larne and nearby

Larne is about 18 miles from Belfast, the main centre for County Antrim. We can arrange visits across the BT40 district and in nearby places such as Carrickfergus and Newtownabbey.

County Antrim centres on Belfast's red-brick terraces, Victorian city centre and commercial areas, with towns such as Lisburn, Ballymena and Larne.

Typical reasons to book:

  • Sites wanting one key for every grille
  • Lost or stolen keys
  • New occupants with unknown key holders
  • Bedroom grilles needing a keyless release

Things to think about

Keyed alike

One key for all grilles is convenient for homes and small shops.

Key control

Restricted key systems limit who can have copies cut.

Planning and safety in Northern Ireland

Northern Ireland

Grilles in rented homes

Private landlords in Northern Ireland have fitness and safety duties under the Private Tenancies (Northern Ireland) Order 2006, as amended by the Private Tenancies Act (Northern Ireland) 2022. Grilles over windows a tenant may need for escape should open from inside without a key.

Bedroom and escape windows

Fire safety in new building work in Northern Ireland is covered by the Building Regulations (Northern Ireland) 2012 and Technical Booklet E. Where a room relies on a window for escape, nothing fitted over it should stop it being used. We only fit grilles over escape windows with a keyless internal release.

How it works

  1. Send a photo of the lock
  2. Choose like-for-like or upgrade
  3. Fitting and testing
  4. Keys and handover

Grille lock replacement and upgrades in Larne: questions

Do you cover Carrickfergus as well as Larne?

We can arrange work in Larne and in nearby Carrickfergus (10 miles), Newtownabbey (14 miles) and Bangor (15 miles). Dates depend on engineer availability.

Can all my grilles use the same key?

Yes, by keying the new cylinders alike.

Can a key-only grille be converted to quick release?

Often, yes, by fitting a lock with a keyless internal release. We check the grille first.

Can you change a lock on a grille you did not fit?

Yes, on most makes, subject to compatible parts.

Grille lock replacement and upgrades in nearby towns

Other grilles in Larne

Use the form or call 0800 088 6248 to book.

Get a guide price for Larne

Tell us what you need in Larne and we will confirm the price before we attend.

Get a guide price0800 088 6248
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