Can you replace a conservatory roof without replacing the whole conservatory?

If your conservatory is too hot in summer, cold in winter or simply starting to show its age, you might be wondering whether the whole structure needs to be replaced. The good news is that, in many cases, it doesn’t.

It is often possible to replace or upgrade a conservatory roof while keeping the existing frames, windows, doors and base. The right approach depends on the condition of the existing conservatory, the type of roof currently fitted and what you want to achieve from the room.

If you’re already considering an upgrade, you can explore our conservatory roof replacement options, or read on to find out when replacing just the roof may be possible.

Can you replace just the roof on a conservatory?

Yes. Providing the existing conservatory is structurally suitable and in good condition, replacing just the roof can often be an option.

Before deciding, the existing conservatory should be properly assessed. The condition and age of the frames, supporting structure and base all need to be considered, particularly if the proposed new roof differs significantly from the original one.

If the windows, doors and main structure are still performing well, there may be little reason to remove them simply because the roof needs attention.

This is why a roof upgrade can be a useful middle ground between living with an uncomfortable old conservatory and replacing the entire structure.

Do I need a whole new conservatory?

Not necessarily.

If the main structure is sound, upgrading the roof could address many of the issues that make an older conservatory uncomfortable to use.

Common problems include a conservatory that becomes excessively hot in sunny weather, loses heat quickly during winter, suffers from glare or becomes particularly noisy during rainfall.

If the windows, doors, frames or base are also deteriorating, a more extensive conservatory upgrade may make better sense.

The important thing is to look at the condition of the conservatory as a whole rather than assuming either that everything needs replacing or that fitting a new roof will solve every problem.

When should you consider replacing a conservatory roof?

There isn’t a set age at which every conservatory roof needs to be replaced.

Instead, look at how the room is actually performing.

It may be worth considering an upgrade if your conservatory is:

• Too hot during the summer
• Very cold during winter
• Difficult or expensive to keep comfortable
• Particularly noisy when it rains
• Suffering from leaks or deterioration
• Fitted with old or discoloured polycarbonate
• Affected by excessive glare
• Rarely used because of temperature problems

If heat is the main issue, our guide to keeping a conservatory cool in summer looks at this in more detail.

Can you replace a polycarbonate conservatory roof?

Yes, subject to the condition and suitability of the existing structure.

Older polycarbonate roofing is one of the common reasons homeowners start looking at conservatory upgrades. While polycarbonate is lightweight and was widely used on conservatories, older roofs can offer relatively poor thermal and acoustic performance compared with modern alternatives.

You don’t necessarily have to replace the whole conservatory to address this.

Depending on the existing roof and what you want from the room, options can include replacing the existing panels with insulated Thermo Panels, installing a modern glass roof or moving to a complete warm roof system.

Can you replace a glass conservatory roof?

Yes. An older glass conservatory roof can also be replaced or upgraded without necessarily replacing the rest of the conservatory.

If maintaining natural light is particularly important, a modern glass conservatory roof may be the most suitable option.

Alternatively, homeowners who want greater insulation or a room that feels more like part of the main house may consider insulated panels or a complete warm conservatory roof.

There isn’t one option that’s automatically better. It depends on the conservatory and how you want to use it.

What are the options for upgrading an existing conservatory roof?

This is where replacing a conservatory roof isn’t necessarily as simple as choosing between glass and a solid roof.

There are different levels of upgrade available.

Thermo Panels

Thermo Panels can provide an option where the existing roof structure is suitable but the glass or polycarbonate panels themselves are contributing to poor temperature control, glare or rain noise.

The lightweight insulated panels are designed to replace existing glass or polycarbonate roof panels within a suitable conservatory roof structure.

They use an XPS insulation core between PVC outer layers, providing a way to improve the performance of an existing roof without necessarily installing a completely new roofing system.

For the right conservatory, insulated conservatory roof panels can therefore offer a relatively straightforward upgrade.

Modern glass roofing

If one of the things you love about your conservatory is the amount of natural light it provides, you may prefer to retain a glazed roof.

Modern glass conservatory roofs offer a significant step forward from many older roofing systems.

House of Glass can supply Supalite S2 glass roofing, with solar controlled glazing also available where managing heat from the sun is particularly important.

This can be a good option when you want to update an ageing conservatory while retaining its bright and open character.

Warm roof systems

For homeowners looking for a more substantial transformation, a warm conservatory roof can create a room that feels much closer to a conventional part of the home.

House of Glass installs Supalite warm roof systems, with an insulated roof construction and an internal ceiling finish.

This is a more comprehensive roof upgrade than simply replacing individual roof panels, so the suitability of the existing conservatory needs to be properly assessed.

You can find out more about the process in our easy guide to conservatory roof replacement.

Do the windows and doors need replacing at the same time?

No. If the existing windows and doors are in good condition, there may be no reason to replace them as part of a roof upgrade.

However, it makes sense to consider the conservatory as a complete room.

If the existing glazing is misted, the frames are damaged or the windows and doors are draughty, improving the roof while ignoring other significant areas of heat loss may limit the overall benefit.

Our guide to the signs your windows need replacing explains some of the common problems to look for.

Will replacing the roof make my conservatory warmer in winter?

An insulated roof can improve the thermal performance of an older conservatory roof, but it is important to look at the whole structure.

The roof is only one part of the room. The performance of the windows, doors and floor, along with the orientation of the conservatory and how it is heated, will all affect how comfortable it feels.

This is why we’d rather assess the existing conservatory and recommend an appropriate solution than promise that changing the roof alone will magically turn every conservatory into a perfectly insulated room.

Will a replacement roof stop my conservatory getting too hot?

The right roof can help with overheating, but again, there are several factors involved.

A warm roof significantly changes the amount of direct sunlight entering through the roof, while insulated Thermo Panels can help reduce solar heat and glare through existing roof sections.

For homeowners who want to retain a glass roof, solar controlled glazing can help manage solar heat gain while retaining natural light.

The orientation of the conservatory, surrounding shade and the amount of glazing elsewhere in the room will also affect summer temperatures.

Do I need planning permission to replace my conservatory roof?

Whether permission or Building Regulations approval is required will depend on the existing conservatory, the property and the work being undertaken.

Changing the construction or weight of a roof can also mean that the existing structure needs to be assessed for suitability.

It’s therefore better to look at the individual conservatory rather than assume the same rules or solution apply to every property.

Is it worth replacing just the conservatory roof?

If the existing conservatory is otherwise in good condition, absolutely replacing the entire structure may be unnecessary.

Upgrading the roof can address one of the biggest weaknesses of an older conservatory while allowing you to retain parts of the structure that are still perfectly serviceable.

However, if the frames, glazing, doors and base are all reaching the end of their useful life, investing heavily in the roof alone may not be the best approach.

This is where an experienced assessment is useful. Sometimes the answer is a straightforward panel upgrade. Sometimes it’s a new glass roof or warm roof. And sometimes a more extensive new conservatory upgrade makes better long term sense.

If you’re considering making more substantial changes to your home, you may also find our guide to orangery vs extension useful.

Need advice on your existing conservatory?

House of Glass is a family run company carrying out conservatory roof replacement and conservatory upgrades across Kent, East Sussex, West Sussex, South East London and South Essex.

We can assess your existing conservatory and talk you through the available options, including Thermo Panels, Supalite warm roofs and Supalite S2 glass roofing.

There are no pushy salespeople and no inflated starting prices to negotiate down. Our first price is our best price.

Get in touch for a free no obligation quote and we’ll help you work out the most suitable option for your conservatory.