Customer Service
Customer Service

LocksOnline has been trading online for 22 years!
British Standard BS3621 Sash Locks

British Standard BS3621 Sash Locks

British Standard BS3621 Sash Locks are ideal for front doors (and back doors of course), as they have a latch part operated by handle, and then a tough deadbolt locked and unlocked by key.  Insurance companies typically require BS3621 locks these days, so it's a good idea to make sure you comply by fitting a lock with this British Standard kitemark.

We offer a wide range of sizes and finishes, as well as keyed alike BS3621 locks, allowing all your doors to operate from the same keys should you want them to; very handy for those who don't want to end up with a bunch of keys weighing them down!


British Standard BS3621 Era Fortress Front Door Sash Lock

British Standard BS3621 Era Fortress Front Door Sash Lock

The insurance-approved Era Fortress lock is a very popular and affordable sash lock that comes insurance rated with British standard BS3621. If your..

Prices From: £14.95 + VAT



Watch Video
LocksOnline Imperial BS3621 5-Lever Sashlock

LocksOnline Imperial BS3621 5-Lever Sashlock

These British Standard BS3621 mortice sash-locks have been designed and built right here in Britain by Imperial Locks based in Willenhall, England.&..

Prices From: £33.46 + VAT



Watch Video
ASEC Vital BS3621 5 Lever Mortice Sashlock

ASEC Vital BS3621 5 Lever Mortice Sashlock

Does your door need a sashlock which complies to the terms of your home insurance? Would you like to have the peace of mind that comes with a 1 year..

Prices From: £14.32 + VAT



ERA Fortress BS3621 High Security Euro Cylinder Sashlock

ERA Fortress BS3621 High Security Euro Cylinder Sashlock

The Era British Standard BS3621 Sash Lock is available in Satin Chrome or Polished Brass, and comes complete with a double euro cylinder, allowing f..

Prices From: £51.71 + VAT



Legge New Style 5 Lever BS3621 Sashlock (N5642 & N5762)

Legge New Style 5 Lever BS3621 Sashlock (N5642 & N5762)

The new Legge N5 sashlocks offer exceptional attack resistance and are stamped with the BS3621 British Standard Kitemark, making them an excellent..

Prices From: £41.40 + VAT



UNION Strongbolt 5 Lever BS 3621:2007 Mortice Sashlock

UNION Strongbolt 5 Lever BS 3621:2007 Mortice Sashlock

The UNION strongbolt has a unique chamfered bolt design which further prevents side load attacks. This sash lock also has a 5 lever design which com..

Prices From: £24.27 + VAT



Watch Video
British Standard BS3621 Asec Front Door Sash Lock

British Standard BS3621 Asec Front Door Sash Lock

This insurance-approved Asec Sash lock is also suitable for wooden front doors with its 5 lever design and comes with 64mm and 76mm case sizes and b..

Prices From: £21.54 + VAT



ASEC High Security BS3621 Euro Sashlock with Security Escutcheons

ASEC High Security BS3621 Euro Sashlock with Security Escutcheons

This incredible Euro-profile sashlock from ASEC surpasses the requirements for BS3621, and really takes your security seriously.  With a euro c..

Prices From: £55.48 + VAT



SECUREFAST SKS2 & SKS3 BS3621 5 Lever Front Door Sashlock

SECUREFAST SKS2 & SKS3 BS3621 5 Lever Front Door Sashlock

Do you need to replace the mortice sashlock on your front door? Or is your insurance company telling you that you need a sashlock for your door that..

Prices From: £24.10 + VAT



Watch Video
UNION Fire-Rated BS3621 Euro Profile Sashlock

UNION Fire-Rated BS3621 Euro Profile Sashlock

For a fire-rated, high-security door lock, that is guaranteed for 15 years as standard, the UNION 222441E really packs a punch with its broad range ..

Prices From: £127.09 + VAT



UNION 2234E Fire Rated BS3621 5 Lever Sashlock

UNION 2234E Fire Rated BS3621 5 Lever Sashlock

This is the 5-lever version of UNION's incredible fire-rated door locks, complying with BS3621 for security and insurance, while also complying with..

Prices From: £33.43 + VAT



UNION Fire Rated BS3621 5 Lever Sashlock Keyed Alike

UNION Fire Rated BS3621 5 Lever Sashlock Keyed Alike

If you were impressed by the incredible features of the UNION 2234E Fire Rated BS3621 Lock, then you'll love this!  These are the keyed-alike v..

Prices From: £39.76 + VAT



UNION 3K74E Fire Rated BS3621 Rollerbolt Sashlock

UNION 3K74E Fire Rated BS3621 Rollerbolt Sashlock

The UNION 3K74E is insurance-approved and is most suitable for wooden front and back doors, this is because of the 5 lever design that meets BS3621 ..

Prices From: £60.41 + VAT



Watch Video
Old-Style Legge 5 Lever BS3621 British Standard Sash Lock

Old-Style Legge 5 Lever BS3621 British Standard Sash Lock

If you're looking to secure your home with the latest British Standard BS3621 kitemarked locks, brought to you by Legge then Legge has this covered ..

Prices From: £31.12 + VAT



ERA Fortress "Classic" BS3621 5-Lever Door Lock

ERA Fortress "Classic" BS3621 5-Lever Door Lock

This is the deluxe version of the standard ERA Fortress sashlock.  It boasts a superior build quality for a more refined end result and smoothe..

Prices From: £27.45 + VAT



Legge Budget BS3621 5-Lever Sashlock

Legge Budget BS3621 5-Lever Sashlock

If you're looking for a cheap way to fulfil insurance requirements by fitting BS3621 locks, then the Legge budget range of high security BS3621 mort..

Prices From: £16.08 + VAT



Some of Our Customers..


Recently Viewed Products

The LocksOnline Team


Darrel

Head of the tech team, and locksmith of 25+ years


Eve

Specialises in Ironmongery & Door Furnishing


Lesley

Deals with Sales on the .co.uk website


Nicola

Deals with Sales on the .com website


Ann

Ensures day-to-day logistics run smoothly


Bryn

Keeps our workshop running smoothly


Jack

Our web developer and content manager

Close the chat box


We will phone you - Request a call back