Conservatory Replacement: What are Your Best Options?

Written by

Rousanna Baird

Last updated

24 April 2024

• A conservatory replacement is easy, and if the size and shape remain the same, no planning permission is required.
• If the structure still looks good, you can upgrade instead of completely replacing it. You can replace elements like windows and the roof to refresh the place.
• The cost of conservatory replacements starts at £6,000 and can increase to over £20,000, while an extension, as DoubleGlazingOntheWeb highlights, starts at £20,000, excluding labour and additional fees.

Your conservatory is a unique space connecting indoors and outdoors, but it may deteriorate over time. To maintain its charm, you can consider replacing it or converting it to an extension. 

There is no right or wrong way to replace your conservatory. Choosing a new style or an extension ultimately depends on your preference and budget. 

However, exploring alternative methods can help you save money and effort. For instance, updating the conservatory’s appearance or designing a new one using the existing base and framework can reduce the time and disruption involved in the process. 

This article guides you through whether replacing, extending, or upgrading your old conservatory is the best option so you can make an informed decision that suits your preferences and budget.

However, if you’re undecided or ready to upgrade your conservatory, fill in the form below to connect with a tradesperson and receive a quote.

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Can I replace my existing conservatory?

Yes, you can replace your existing conservatory with one that fits your property size and preference. If the foundation is poor or style preferences have changed, consider replacing the entire structure. 

For instance, if your home features an old Edwardian style, you can opt for an affordable lean to conservatory with a sleeker look without altering the original foundation. 

Swapping your old conservatory for a new one rather than extending your home can often be a cheaper and minimally disruptive option, especially when the current structure and foundation are sound. That’s because replacements require less labour and can freshen the conservatory’s appearance without starting from scratch. 

Here are some benefits of conservatory replacement over home extensions to help you understand why replacing might be better. 

• Less disruption and shorter construction time

A conservatory replacement is less intrusive than building an extension. Upgrade the glass, frames, and roof using the existing base and framework to minimise disruption and save time. 

Converting a conservatory into an extension involves meeting building regulations through complex construction work, which can lengthen the project timeline and further disrupt household routines. 

• Lower costs for labour and materials

Converting a conservatory into an extension may cost more than replacing it. However, using the existing structure can save on materials and labour costs, and replacing the conservatory also avoids extensive modifications.

DoubleGlazingOnTheWeb says a new extension can start at £20,000, depending on your desired size and materials. This price does not include labour costs or the expenses of removing and disposing of your old conservatory.

• Preserves the conservatory’s charm

Upgrading your conservatory with a modern space preserves its unique style, charm, and qualities, such as the transition between indoor and outdoor spaces, natural light, and garden views. An extension offers more living space but lacks a conservatory’s ambience, views, and natural light. A well-designed conservatory can be a sanctuary all year round.

• No planning permission 

In the UK, you don’t need planning permission to replace a conservatory of the same size and shape unless it’s a listed building or conservation area. However, if you extend and make it larger, you may need planning permission. 

If the extension is attached to a semi-detached or terraced house, you must inform your neighbours and hire a surveyor for a Party Wall agreement. This can add up to £1,200 to £1,500 to the cost for a single party surveyor, highlights HomeOwnersAlliance in the article “Party wall surveyor cost 2024. 

Ultimately, updating the appearance of your conservatory can be a cheaper alternative to undertaking the complexities of an extension or building a new conservatory.

Let’s now look at what signals indicate you need to replace your conservatory. 

What signs call for a conservatory replacement?

Your conservatory serves many purposes, like dining, relaxing, working, or working out. However, even the strongest and well-maintained conservatories don’t last forever. 

To maintain its condition, you should know the signs that indicate it needs an update or replacement. Foxfurd’s blog post, “5 signs your conservatory needs an update,” lists important points regarding replacing your conservatory. 

Signs to consider for conservatory replacement:

• Damaged and leaking roof: If water leaks from your conservatory’s roof or you see damage, fixing or replacing it is vital to making it more secure. The Ashdale Home Improvements article, “Five tell-tale signs it’s time to replace your conservatory roof,” suggests getting a solid, warm roof replacement for a longer-lasting conservatory.

  The article also notes that fixing leaks fast is essential because they come from sealant failure, vent leaks, or loose panels, which can lead to more significant damage if ignored.

• Too warm or cold conservatory: If your conservatory gets too hot in summer or too cold in winter, it might be because of poor insulation or insufficient air circulation.

  The Ultraframe article, “Conservatory Too Hot in Summer and Too Cold in Winter,” points out that the roof often causes these temperature problems. Replacing it with modern materials or using energy-efficient glass can fix this, making the conservatory comfortable all year.

• Higher energy cost: Rising bills may result from your conservatory’s heat loss in winter or excessive heat in the summer. Consider investing in better roof insulation and sun-reflecting glass as a solution. ConservatoryAdviser UK suggests that by better controlling the temperature of your conservatory, you can avoid using energy-intensive heaters, fans, or air conditioners.

  Roof insulation can be a cost-saving measure if you rely on these devices to make your conservatory habitable, especially with rising energy costs.

• Moisture and airflow issues: If you notice mould and mildew in your conservatory, signal a problem with air circulation and too much moisture. This can be harmful to your health and the conservatory’s structure. Instead of replacing the entire conservatory, upgrading the roof and windows might be enough to improve airflow and keep the space dry.
• Noise problems: If external noises are becoming bothersome or the sound of rain on your roof is unbearable, Outsideinterest UK suggests that your roof might cause the noise problem. Opting for a roof replacement rather than replacing the conservatory could solve the problem. 

In addition, if your conservatory looks too out and has an outdated style or even structural damages, it may be time to replace it.

Noticing these signals lets you choose whether to partially or fully replace your conservatory or if minor upgrades are enough. These alternatives cost less than an all-out replacement or turning your conservatory into an extension, which can incur more costs.

Replacing conservatory windows

Before deciding on a complete conservatory replacement, it’s worth checking whether replacing just the old windows would suffice. This is especially true if the windows are worn out and hard to maintain. Consider replacing the windows if your conservatory’s structure is good, but first, look for signs suggesting they need replacing. 

The Bingleywindowsandglass article “Conservatory Repairs—When Is It Not Worth It?” highlights that damages like cracks or the risk of shattered glass are safety concerns that need quick glass replacement. New, efficient windows can manage these issues. 

Other signs requiring window replacement include: 

• Recurring leaks and condensation: If your conservatory is not watertight or insulating correctly, it can lead to water leakage and condensation on the windows. This can cause further damage and affect the room’s temperature. It’s important to have your windows checked and replaced immediately.
• Draughts, frame damage, or difficult operation: If you have trouble opening or closing your conservatory windows, feel cold air coming in, or notice damaged frames, it’s time for a replacement. Poor sealing and damaged frames can lower energy efficiency and safety, and issues with window operation are a clear indicator for a new one.

In addition, poorly functioning conservatory windows can impact your living space by letting in outside noise. Consider replacing them to improve comfort, security and style.

Deciding on the best window for conservatory replacement depends on budget and design choice. The following section covers types of replacement windows to consider.

Popular window types for your window replacement

When upgrading your conservatory’s window, picking the right one can make a big difference by elevating its appearance, functionality, and comfort. Each window type offers benefits, but making the choice can be confusing. Knowing what each one offers can help. 

Our research from Everest, EnhancedConservatories, and IQGlass found ten UK window types suitable for replacing conservatory windows. Whether your goal is to enhance airflow, insulation, or natural light, an array of options is available. 

Let’s explore them and see how they benefit your space.

Casement windows

• This style is side-hung like a door, with swing openings from the top or bottom. 
• They provide excellent ventilation and a clear view. 
• Easy to open and close

Sliding windows

• Slide horizontally 
• Save space, making them ideal for tight areas 
• Offer an expansive view and plenty of natural light

Glass-to-floor windows

• Maximises natural light
• Make small spaces appear bigger
• Offer unique unobstructed outside view

Sash windows

• Slide vertically, can mix fixed and sliding panels
• Enable bespoke Edwardian or Victorian styles conservatories
• Suitable for adding distinctive appeal to conservatory designs

Tilt and turn windows

• Open in two ways: tilting back for ventilation or swinging in like a door. 
• Offer good security and easy-to-clean 
• Versatile in airflow management 

Bay and bow windows

• Extend out from the wall, creating extra space
• Bring in lots of light and offer broad views
• Ideal for making a small conservatory feel larger 

Fixed windows

• Do not open, but provide ample light 
• Often used in combination with other window types for larger glazed areas

Gable-end/ pitched roof windows

• Extend up to the roof
• Ideal for gable-front conservatories
• Maximises light and space

Skylight windows

• Installed in the roof to allow direct sunlight into the space
• Can make a room brighter and feel more open 
• Perfect for adding natural light without compromising wall space

Leaded windows

• Suitable for traditional or heritage styles
• Adds elegance and historical charm
• Features lead strips for distinctive patterns 

Popular frame types for window replacement

When it’s time to upgrade your conservatory, choosing the right frames for your windows is just as important as picking the glass. The frame affects how your windows look and how well they work. 

Here’s how to tell it’s time for new frames, your options, and a quick list of the popular types you can choose from. 

How do you know your window frames need to be changed?

• Visible damage or wear: Parklane, a UK expert in windows, doors, and conservatories, advises that rotten seals or damaged frames are signs of a change. 
• Drafts or leaks: If air or water is coming through the frames, it could mean the seals are damaged.
• Outdated style: If your conservatory is old and has outdated windows and frames, updating to modern frames can refresh the look. 
• Hard-to-operate windows: Warping or uneven settling of the frame, often caused by temperature changes or moisture, can make windows difficult to open or close. 
• Cleaning difficulty: According to Parklane, difficult cleaning, brittleness, or staining in uPVC frames suggests wear and tear. Both the windows and frames require replacement.

To keep your conservatory looking good and functioning well, it’s important to address any issues early on. This will help ensure that your conservatory remains comfortable and enjoyable.

Once you’ve spotted the signs, it’s time to think about what types of conservatory frames you can replace your old ones with. 

Let’s look at the options you can choose from.

uPVC Frames

uPVC (Unplasticised polyvinyl chloride) frames are common for conservatory windows and doors in the UK. 

They are adaptable and can match any home style. CNGlass, a window expert in the UK, emphasises that these frames are durable and easy to maintain. You can also choose woodgrain-effect finishes, which give you the look of wood while guaranteeing long-lasting durability.

Pros

• Low maintenance with occasional cleaning
• Low cost compared to other materials
• Long-lasting and provides good thermal insulation

Cons

• Basic models can look cheap
• May brittle and discolour over time in direct sunlight
• Less eco-friendly than natural materials

Aluminium Frames

These frames give your conservatory a modern touch. They’re strong and need little care. Their thin design means you can have bigger windows for more light. 

Why you should or shouldn’t opt for aluminium frames for your window replacement. 

Pros

• Modern and strong
• Easy to take care of
• More glass for better views

Cons

• Not as warm as wood or uPVC
• Usually pricier than uPVC
• Can feel cold in the winter

Wooden Frames

These frames add classic beauty to any conservatory and fit well with older houses. You can easily paint or stain them to match your home. 

Let’s explore their advantages and drawbacks. 

Pros

• Look great with a natural style
• Keep your home/conservatory warm
• You can change their colour to suit your taste

Cons

• Need a lot of care
• Cost more than other frames
• Might warp or change shape with the weather

Composite Frames

According to an article by HomeBuilding UK titled “What is a composite window and what are their pros and cons?”, composite frames mix wood’s warmth and look with aluminium’s strength, offering the best of both worlds. They’re easy to care for and keep your conservatory warm year-round. 

Pros

• Mixes the best of wood and aluminium
• Easy to maintain
• Keeps heat in well

Cons

• Often more expensive
• Fewer style choices
• Harder to find than other types

The choice of frames for your conservatory’s window replacement depends on your needs and budget. Which do you prioritise: style, warmth, or low maintenance? Reflect on what matters the most for your conservatory. 

Replacement conservatory roof

Upgrading your conservatory’s roof is an easy improvement method. Prefix Systems, home improvement industry experts, note that old conservatories lose heat through their roofs. 

However, a replacement with new technology can improve warmth and durability. You can pick from beautiful glazed or top-quality solid roofs, each with advantages. 

Before replacing your roof, look for signs suggesting you must re-roof. 

• Water seepage: If you notice water entering your conservatory when it rains, it indicates a leakage issue in the roof and needs fixing or replacing. 
• Signs of deterioration: Visible cracks or breakage sign the need for updates or replacement.
• Insulation concerns: Poor insulation or a damaged roof can cause irregular temperatures and condensation in your conservatory. Replacing the roof can solve these issues and ensure a comfortable indoor environment.

To create an enjoyable and efficient living space, start by recognising the need to replace your conservatory roof. Before deciding, it’s essential to understand the roofing options. 

In the next section, we’ll explore the benefits of glass and tiled roofs and help you decide which type best suits your needs. 

Glass conservatory roof

If your roof is damaged or outdated, a glass roof is a classic and energy-efficient replacement option. BJH, windows, and conservatories experts say that some glass-roof conservatories can last for over 20 years with the proper cleaning and servicing. On average, you can expect to pay anything between £6,300 and £12,600 for replacing a 3m x 3.5 conservatory roof with glass, as quoted by Checkatrade. However, the price tag doesn’t come without benefits.

Bergson & Eaton suggest that a glass conservatory roof can offer several benefits, including improved thermal efficiency, reduced outside noise levels by as much as 50%, and reduced glare from the sun. 

Moreover, upgrading to self-cleaning glass and UV protection options can help simplify maintenance while protecting the interior. So, if you want to swap your conservatory’s old roof, a glass roof might be a great option!

Tiled conservatory roof

If you want your conservatory to have a more traditional look that matches the style of your home, consider a tiled conservatory roof. 

According to Leamore Windows, tiled roofs not only improve the appearance of your conservatory but also solve many common problems, such as heat loss, poor sound insulation, and older glass or polycarbonate roofs.

With building rules relaxed, replacing your conservatory’s roof with tile has many benefits, such as(List with facts fox):

• Better insulation: Tiled roofs keep heat in, so your conservatory stays warm in winter and cool in summer. This means you can use it comfortably all year and save on heating bills. 
• Less glare: Traditional conservatory roofs often struggle to manage sunlight, leading to excessive glare. Tiled roofs reduce this issue, ensuring a comfortable environment regardless of the weather. 
• Less noise: Tiled roofs substantially decrease external noise, such as rain, creating a serene indoor atmosphere. 
• Stylish: Some tiled roofs can produce a sleek look that blends with your modern or traditional home. With colour variations available, you can add an authentic style to your conservatory. 
• Low maintenance: Tiled roofs don’t leak much like glass ones. They’re built tough and stand up to the weather without much fixing, meaning less worry.
• Affordable: Choosing a new tiled roof is cheaper than building a new conservatory. It’s a low-cost alternative to improve your space without starting from scratch. 
• Adds value: A well-insulated, leak-free conservatory is a plus when selling your home. A tiled roof makes your conservatory a highlight, not a drawback, potentially boosting your home’s value.  

If comfort, style, and practical benefits are important to you, opting for a tiled conservatory roof replacement could be the best decision for your conservatory. 

Which type of roof should you choose, glass or tile?

Your choice between glass or tile for your conservatory’s roof replacement should depend on what you want to achieve with the space. 

Do you want abundant natural light, a cosy retreat for all seasons, or a seamless integration with your home’s architecture? 

Your roofing material will determine the space’s ambience and how you enjoy it.

Here’s a comparison of glass versus tiled roofs, with questions and answers to help you decide. 

What your best options are for your conservatory replacement, glass or tiled roof, depends on weighing factors, such as the desired ambience, insulation requirements, budget constraints, and maintenance willingness. 

Whether you prefer the bright openness a glass roof replacement offers or the cosy insulated environment under a tiled roof, your choice will ultimately define your conservatory’s functionality and atmosphere. 

How much will conservatory replacement cost?

A conservatory replacement cost ranges between £6,000 and £20,000. However, it’s possible that the cost can stretch from £20,000 to £100,000 for a complete replacement, including the base. These ranges show how conservatory prices vary according to the diverse design, materials, and size options. 

Refurbishing parts of your conservatory rather than opting for a complete overhaul can give your space a new life and is affordable. Checkatrade’s “Conservatory Refurbishment Cost Guide” provides detailed insights into costs for various upgrades. 

• Solid/ Tiled roof: £5,000 – £7,000 for a better-looking and warmer space
• Glass roof: £3,000 – £5,000 to enhance light and modern insulation 
• Roof insulation: £895 – £1,850 for year-round comfort and lower heating bills
• New windows and doors: £4,000 – £8,000 for upgraded security and energy efficiency 

The total cost can vary based on the size of your conservatory and the standard of premium materials you choose. 

Have you decided to build a new conservatory? Checkatrade says prices vary significantly, ranging from £15,000 to £30,000. The ultimate cost depends on the conservatory’s style, size, location, and specific design preferences. 

Remember, these‌ are rough estimates of what you might end up paying, and your situation might differ. For a clearer idea of your project’s potential cost, it’s best to get quotes from local professionals.

Get the best replacement conservatory deal

Remember, searching for a conservatory replacement is not just about finding the cheapest deal. Your investment deserves quality work and materials that will last. 

By comparing different quotes, you’ll have access to various options to find the perfect balance between cost and quality. So go forth confidently and make the right choice for your conservatory! 

Fill in the form to connect with trusted professionals in your area for the best deals that match your needs and budget. 

Get your best deal

Quickly compare FREE quotes

• Describe your needs
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• Choose the best offer

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