Frequently asked questions


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01524 727000


Strongdor - frequently asked questions

Who is responsible to ensure the specification is correct and compliant?

You are responsible to check that the specification on the order acknowledgment meets your requirements and is compliant with buildings regulations including the location and method of installation.

Refer to Strongdor Ltd Terms & Conditions section 2.

What happens if the goods are delivered late and my installers need to revisit site?

Our aim is deliver all orders on time in full, but there will sometimes be delays for reasons outside of our control. Strongdor cannot accept liability for failed or delayed delivery and will always try and redeliver within a reasonable amount of time.

Refer to Strongdor Ltd Terms & Conditions section 5.

What if the doors are damaged in transit?

It is your responsibility to check the products on delivery before signing for the goods. Any claims for damaged goods after they have been delivered and signed for, are not covered.

Refer to Strongdor Ltd Terms & Conditions section 5.

I have not yet unpacked the doors but I have measured the width to check it is correct and they seem to be 30mm too wide…

This is quite a common issue and it is because of the way we pack the doors. We pack the expanding side channels down the side of the doors before we wrap them. This makes the doors appear too wide but when you unpack them it will be clear that the channels are sperate and need to be fitted to the door during installation.

How do I install the doors?

We recommend using the services of a professional installer – or if you intend to install the doors yourself we have helpful video’s for professional installers available on our website.

If you have any questions we have a dedicated customer service team on hand to provide assistance – please call 01524 727000 and ask to speak to the Customer Service Team.

Who do I talk to if I need additional parts or spare components?

Please contact your designated account manager, or alternatively a member of our customer services team on 01524 727 000 who will be able to help.

Do Strongdor offer a site measuring service?

No, Strongdor are a manufacturer and we don’t offer site surveys. We recommend that the best person to measure the openings is the person that is fitting the doors.

How do I measure a door opening?

To manufacture the best fitting door, Strongdor will require the Brick to Brick structural opening of the doorway width and height. We will make the necessary fitting allowances on the size of the door frame. If the opening is wider at the top than the bottom or vice versa, please give us the width at the narrowest point.

What if the door is near the coast or in a corrosive environment?

Any door that is within 5km of the coast will need to be specified with an upgraded paint system called Marine Grade – please ensure you let our sales team know when placing your enquiry so they can ensure you get the right paint system on your doors.

You have many different door names on your website eg: Steeldor, Firedor, and Louvidor… How do I know which one to ask for?

There is lots of information about the door properties on the website – especially on the downloadable technical specification sheets. But if you have any question please call and speak to one of our door experts who will be very happy to guide you through the range and assist you in selecting the right door.


Does Strongdor offer an installation service?

No, Strongdor is a manufacturer and we supply the installer. If you need installation for your doors please let our sales team know before they raise a quote, and they will be able to put you in touch with one of our approved door installation agents who will be very happy to quote for a supplied and installed Strongdor.