25 October 2023

How To Clean A Roof Lantern

How To Clean A Roof Lantern

Adding a roof lantern to a property is a great way to transform it. They’re sophisticated and stylish installations and are perfect for filling buildings with light. Whether you’re working on a new orangery or refurbishing a kitchen, a roof lantern can improve your project. However, there is one minor challenge that people are sometimes unprepared for; how to clean them.

Here at Glideline, we’ve spoken to clients from all walks of life and given advice on cleaning roof lanterns. We thought we’d put together a quick guide on how to do it. Here’s how to bring the sparkle back to overhead glazing.


Cleaning Tips

The good news is that it’s relatively easy to clean a roof lantern. It requires no specialist training or equipment and can be done with everyday, over-the-counter products. It’s a lot like cleaning a standard window, except for one big difference; getting onto the roof. So, if you find yourself with nothing to do one afternoon and you’ve noticed your lantern has accumulated dirt, start by getting the following:

  • A non-abrasive sponge
  • Glass cleaning spray
  • Some warm and soapy (but not too soapy) water
  • A microfibre cloth
  • A sturdy and reliable ladder
  • A hose


Get your ladder set up and have a friend or family member hold it steady. Once you’re at the top, have them pass up any equipment you haven’t carried yourself. Then, it’s simply a case of getting down on your knees and giving the lantern a good scrub. Liberally apply the glass cleaning solution, then use the sponge and warm water to wipe it all down. 

Once you’ve done the whole thing, have a friend pass you the hose through an open window or from the ground level, turn it on and rinse off all the soap suds. Finish by drying the lantern with the microfibre cloth and you’ll avoid any streaks. Alternatively, you can leave it to dry naturally, but if so we recommend cleaning your lantern on an overcast day. If it’s too sunny, it’ll dry quicker and leave water marks on the glass.


Cleaning The Inside Of A Roof Lantern

The only other thing to bear in mind’s when to clean the inside of your lantern. As it’s not exposed to the elements, you won’t need to do this as often, but it’s still worth it as it’ll keep it looking pristine. 

Cleaning the inside isn’t that different, but there are a few things you need to do. We suggest laying something on the floor to catch the water droplets. This isn’t an issue when you’re outdoors, but you wouldn’t want water soaking into a carpet. And again, make sure you’ve got someone to hold the ladder; you’ll be reaching up to clean the lantern this time and don’t want to overbalance yourself. 

It’s also worth using less water on the internal side. Drying it will be harder too, so open the windows once you’re done and let the air get to it. Having an extendable duster to hand that can sweep out any cobwebs is a good idea too. And as a final point, remember to move the furniture first or you’ll risk getting it dirty. 


Cleaning a roof lantern isn’t too tricky and doesn’t need to be done very often, once every couple of months should do. If any of your clients ask about it, pass all these tips on and they’ll soon get their lanterns looking their finest. 

And of course, if you have any questions, feel free to ask or request a quote. Our expert staff will be happy to answer any questions you may have.

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