How much does grille lock replacement cost in Hertfordshire?
Most grille lock replacements in Hertfordshire 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 the work covers
- Complete lock box replacement
- Quick-release conversions for escape windows
- Keyed-alike and master-key suites
- Lock work on most grille makes
- Additional shoot bolts top and bottom
- Replacement cylinders and lock bodies
Covering Hertfordshire
We can arrange grille lock replacement anywhere in Hertfordshire, including Watford and Hemel Hempstead. Visit dates depend on engineer availability. Choose your town below for local details.
Hertfordshire mixes the garden cities of Letchworth and Welwyn, post-war new towns such as Stevenage, and historic centres like St Albans.
Common situations:
- New occupants with unknown key holders
- Bedroom grilles needing a keyless release
- Lost or stolen keys
- Sites wanting one key for every grille
Towns in Hertfordshire
- BerkhamstedHP4
- Bishop's StortfordCM23
- BorehamwoodWD6
- BusheyWD23
- CheshuntEN8
- HarpendenAL5
- HatfieldAL10
- Hemel HempsteadHP3
- HertfordSG13
- HitchinSG4
- HoddesdonEN11
- Letchworth Garden CitySG6
- Potters BarEN6
- RickmansworthWD3
- St AlbansAL1
- StevenageSG1
- WatfordWD17
- Welwyn Garden CityAL8
Getting the best result
Like for like or upgrade
If the grille is sound, a better cylinder is a cheap upgrade.
Keyed alike
One key for all grilles is convenient for homes and small shops.
Rules that apply in England
Bedroom and escape windows
Approved Document B (fire safety) expects many habitable rooms in houses, especially first-floor rooms, to have an emergency escape window with an unobstructed opening of at least 0.33 m², at least 450 mm high and 450 mm wide, with the bottom of the opening no more than 1,100 mm above the floor. We only fit grilles over escape windows with a release that opens from inside without a key.
Grilles across exits in business premises
In workplaces and other non-domestic premises, including the common parts of blocks of flats and HMOs, the Regulatory Reform (Fire Safety) Order 2005 makes the responsible person keep escape routes and emergency exits available and easy to open while people are present. A grille across an exit should be unlocked and parked open whenever the building is occupied, and covered in the fire risk assessment.
How it works
- Tell us about the grille and lock
- Price confirmed
- Lock replaced or upgraded
- New keys handed over
Grille lock replacement and upgrades in Hertfordshire: questions
Which towns in Hertfordshire do you cover?
We can arrange work anywhere in Hertfordshire, including Watford, Hemel Hempstead, Stevenage, St Albans and Welwyn Garden City, and in other towns across the area.
Is a better cylinder worth it?
On a grille that is otherwise sound, a higher-security cylinder is an inexpensive way to raise resistance to lock attack.
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.
I have lost my grille key. What can I do?
We can open and replace the lock so you have new keys and know who holds them.
Other grilles in Hertfordshire
- Internal security grilles
- Patio and bifold door grilles
- Door security gates
- Bi-folding security gates
- LPS 1175 certified security grilles
- Home security grilles
Send a photo of the grille and we will come back with a price.