As an extension to your home, conservatories are increasingly vulnerable to the elements.

Whether it be rain, snow, dust, or dirt, unfortunately conservatory roofs find themselves in the firing line all too often.

It’s important to keep your conservatory roof clean, as not only does it look far more pleasant when properly taken care of, but it’s also more energy efficient and better at letting in natural light.

The best way to clean a conservatory roof largely depends on the type of roof you have, with different materials requiring different methods.

This blog will walk you through some of the best techniques.

Staying safe

This may not come as much of a surprise, but conservatory cleaning has several associated risks – it’s important to recognise and adapt to them before going any further.

Check the weather

Conservatory roofs are often pitched, especially Victorian-style versions. With that in mind, it’s important to pick a dry day, where you can clean whilst protected from rain or strong winds.

And your clothing

If you’re climbing a ladder and perching on the top of a conservatory, it’s important to be dressed for the occasion. We advise sturdy shoes with good grip, and a long sleeve and trouser combination to shield yourself from any scratches.

Rosewood effect P-Shaped conservatory with a tiled roof

What equipment do I need to clean my conservatory roof?

Once you’ve got a safe set of clothing and the weather is in your favour, you’ll need the right equipment to make the cleanse a good one.

It’s preferable to have a strong, proper ladder with a wider base for security purposes. If it is possible, we suggest you have a partner to assist you when climbing the ladder.

No matter the material or style of the conservatory roof, the first step is usually to clear it of debris using a soft-bristled brush, broom, or trowel.

Further to this, you’ll require a bucket, garden hose or watering can, sponge or soft cloth, and a squeegee to achieve a non-stained finish.

Whilst a pressure washer may seem an obvious choice, they can both damage the conservatory and spread dirt, with manual cleaning likely to garner a better result.

How to clean a tiled conservatory roof

The cleaning process for a conservatory roof varies depending on the material it’s made from.

Before doing anything, you should use your broom to gently sweep away any loose leaves, twigs, or debris from the tiled surface.

Then you can use the brush or trowel to loosen and then remove the moss and algae, starting at the top and working your way down.

Alternatively, you can utilise a specialised cleaning solution. By following the manufacturer’s instructions, the solution will loosen the moss and algae growth, making it easy to then scrape away.

uPVC victorian conservatory with a brown tiled roof

How to clean a glass conservatory roof

Glass is the most popular conservatory roof material, largely because it allows natural light to effortlessly flow into your space, creating a feeling of spaciousness in the process.

The cleaning process itself is like cleaning a window, you’ll need a mild soap solution, sponges, and a squeegee for a streak-free finish.

We advise cleaning a glass conservatory roof in cooler weather conditions to avoid the soap drying too quickly.

If you’re cleaning the roof of a steep-pitched, Victorian-style conservatory, we recommend hiring a professional, as it can be dangerous.

White uPVC gable conservatory with a glass roof

How to clean a polycarbonate conservatory roof

Polycarbonate roofs require a slightly different approach to tiled and glass options, as they need a slightly gentler touch to avoid scratches.

After using a soft brush to remove loose debris from the roof surface like twigs and leaves, we suggest filling a bucket with lukewarm clean water and adding a small amount of soap.

Then a soft sponge is preferable, gently washing the roof in sections following in the direction of the grooves.

After rinsing each section with hose water, allow it to dry.

How do you clean the inside of a conservatory roof?

You’ve gone through the effort of scaling your conservatory, giving it a good clean, and preferably getting back down again – but what’s next?

To truly make your efforts worthwhile, it’s important not to forget to clean the interior of the conservatory roof too.

No matter the roof material, the first step is to clear the area by removing any furniture or plants from underneath to avoid them getting dirty or wet during the cleaning process.

Tiled Roof

Like tidying up any interior room, the trusty feather duster is the first port of call for cleaning an inside space.

Once the cobwebs have been dismantled and the dust discarded, you can prepare a bucket of hot soapy water, before dipping and wringing the sponge and wiping down the tiles, particularly effective for tougher stains.

Interior view of a Supalite tiled roof conservatory

Glass Roof

Once the area below is cleared, and the floors covered, get a sponge and some warm soapy water, and start scrubbing.

A telescopic brush can also help reach areas or roof panels to remove excess water or soap.

uPVC gable conservatory with a glass roof

How often should you clean a conservatory roof?

Regular cleaning of your conservatory roof will ensure it maintains its best condition for several years. We recommend aiming to clean the roof twice per year, regular maintenance that will make a great deal of difference.

Conservatories from Renaissance Conservatories

At Renaissance Conservatories, we have a range of beautiful conservatory options available for homeowners across south Devon.

Available in aluminium or uPVC frames, they’re available in the following styles:




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The bespoke option allows you to design your dream conservatory, giving you control over the shape, glazing, colour, conservatory materials, and hardware.

As well as installing conservatories from scratch, we also offer roof replacements. If your existing conservatory struggles with temperature regulation, soundproofing, or allowing you privacy, it may be worth exploring our options here.

Who are Renaissance Conservatories?

At Renaissance Conservatories, we’re proud to be a family-run company based in the heart of Devon. As well as conservatories, we also offer orangery, window, and door installations.

Our friendly customer service team of experts are always on hand to provide any further information at 01626 333 393, or

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Are you interested in improving your home? Get in touch with Renaissance Conservatories, your local conservatory specialists today!

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