Imagine this: you’ve been dreaming of a bright, airy space where you can relax, entertain, or enjoy a morning coffee with a garden view. A conservatory seems like the perfect addition to your home—blending indoor comfort with outdoor beauty. But before you start planning, one big question comes to mind: how much does a conservatory cost?
The price of a conservatory in the UK can vary widely depending on size, style, materials, glazing, and installation costs. With so many options available, understanding the costs upfront can help you budget effectively and avoid unexpected expenses.
In this guide, we’ll break down conservatory prices in 2025, explore different styles and materials, and explain how factors like roof type, planning permission, and glazing affect the final cost. Whether you’re looking for an affordable lean-to conservatory or a bespoke orangery, this guide will help you make an informed decision.
How Much Does a Conservatory Cost in 2025?
At Celestial Windows, we know that adding a conservatory is a big investment. Whether you want extra space for relaxing, dining, or entertaining, understanding how much a conservatory costs is essential before you start planning.
In 2025, conservatory prices in the UK vary depending on size, style, materials, glazing, and additional features. A small, simple lean-to conservatory can start from £7,000, while a large, fully fitted orangery can exceed £30,000.
Estimated Conservatory Costs in 2025
The table below provides an estimated price range based on standard sizes and popular styles. These prices include windows, doors, and roofing but do not account for additional features like heating, underfloor insulation, or bespoke customisations.
| Conservatory Type | Small (3m x 3m) | Medium (4m x 4m) | Large (6m x 4m+) |
| Lean-To Conservatory | £7,000 – £10,000 | £10,000 – £14,000 | £14,000 – £18,000 |
| Victorian Conservatory | £9,000 – £12,000 | £12,000 – £18,000 | £18,000 – £25,000 |
| Edwardian Conservatory | £9,500 – £13,000 | £13,000 – £19,000 | £19,000 – £26,000 |
| Orangery | £15,000 – £20,000 | £20,000 – £28,000 | £28,000 – £35,000+ |
| Bespoke Designs | From £12,000+ | From £18,000+ | From £25,000+ |
What Affects the Cost of a Conservatory?
The cost of a conservatory is influenced by size, style, materials, glazing, roofing, and installation choices. At Celestial Windows, we work with homeowners across Middlesbrough, Teesside, and the North East to design conservatories that suit their budget and home. Below, we explore the key factors that affect conservatory pricing.
The final price of a conservatory depends on a range of factors:
- Size: A larger footprint requires more materials and labour, increasing the overall cost.
- Style: A lean-to conservatory is typically the most affordable, while an orangery or custom design costs more.
- Materials: uPVC is the most budget-friendly option, while aluminium and timber frames cost more.
- Glazing: Upgrading to self-cleaning, noise-reducing, or energy-efficient glass will increase the price.
- Roof Type: Polycarbonate roofs are cheaper, while hybrid and solid roofs improve insulation but cost more.
- Installation Costs: A DIY conservatory kit is cheaper upfront, but professional installation ensures quality and longevity.
We’re going to explore exactly how much these can affect the final price of your conservatory as we go through this guide.
Size of the Conservatory
The size of your conservatory is one of the biggest cost factors. Larger spaces require more materials, structural support, and labour, increasing both material and installation costs.
- Small conservatories (3m x 3m) – Ideal for compact homes, offering a cosy, cost-effective space. These are generally more affordable, with prices starting from around £7,000.
- Medium conservatories (4m x 4m) – More room for dining or living areas, with prices averaging between £10,000 and £19,000.
- Large conservatories (6m x 4m+) – Provide spacious, open-plan extensions but require a larger investment, often exceeding £25,000, especially for custom designs.
Choosing the right size depends on your available space, budget, and how you plan to use the conservatory.
Conservatory Style & Design
Different conservatory styles come with varying price points due to design complexity, structural requirements, and material costs.
- Lean-To Conservatory – A simple, modern option, ideal for budget-conscious homeowners.
- Victorian Conservatory – Classic curved design with decorative roof detailing, increasing costs.
- Edwardian Conservatory – Provides a square or rectangular layout, maximising usable space.
- Orangeries – Hybrid between a conservatory and a brick extension, offering a premium, high-end finish.
Bespoke conservatories with custom layouts, brickwork, or integrated features will add to the cost but allow you to design a space that perfectly fits your home.
Conservatory Frame Materials
The frame material affects both cost and durability.
- uPVC Conservatories – The most cost-effective and low-maintenance option. Provides excellent insulation but has fewer customisation options.
- Aluminium Conservatories – Modern, slimline, and highly durable. More expensive than uPVC but ideal for a contemporary aesthetic.
- Timber Conservatories – A premium choice for period homes. While stylish and traditional, timber requires ongoing maintenance and costs more than other materials.
At Celestial Windows, we offer high-quality uPVC and aluminium conservatories tailored to your needs.
Conservatory Roof Types & Their Prices
The roof you choose plays a crucial role in the overall cost, energy efficiency, and year-round comfort of your conservatory.
- Glass Roof – Provides natural light and better insulation than polycarbonate. Standard double-glazed glass is affordable, while solar control or self-cleaning glass increases costs.
- Polycarbonate Roof – The cheapest roofing option, but less effective for insulation. Ideal for budget-conscious builds but may require extra heating in winter.
- Hybrid/Solid Roof – A premium option offering superior insulation and a more permanent feel. Often used in orangeries or custom conservatories.
If you’re planning to use your conservatory year-round, investing in a high-performance glass or hybrid roof can help regulate temperature and reduce heating costs.
Conservatory Glazing Options & Costs
Glazing impacts both energy efficiency and price.
- Standard Double Glazing – Affordable and provides basic insulation.
- Triple Glazing – Increases energy efficiency, reducing heating costs in winter.
- Self-Cleaning Glass – Reduces maintenance, ideal for hard-to-reach conservatory roofs.
- Solar Control Glass – Helps prevent overheating in summer.
- Noise-Reducing Glass – Minimises external noise, useful for homes near main roads or busy areas.
Choosing the right glazing ensures comfort, energy efficiency, and durability.
Installation Costs: DIY vs Professional
Homeowners often ask whether a DIY conservatory kit is a cost-effective alternative to professional installation.
- DIY Conservatory Costs – Prices start lower, from around £5,000, but require technical knowledge. Mistakes can lead to expensive repairs.
- Professional Installation Costs – While labour costs increase the total price, you benefit from expert craftsmanship, a solid foundation, and a guarantee.
The right size, style, materials, glazing, and installation all play a role in the final cost. Celestial Windows provides tailored quotes to match your budget and needs, ensuring a high-quality, long-lasting conservatory. Contact us today to discuss your project.
Conservatory Price Guide by Type
Choosing the right conservatory style depends on your home’s design, available space, and budget. At Celestial Windows, we offer a range of conservatory styles, each with different costs, features, and benefits. Below is a price guide to help you understand the expected investment for each type.
Lean-To Conservatory Cost
A lean-to conservatory is the most affordable and space-efficient option. Its simple, sloped roof design makes it perfect for smaller homes or bungalows with limited height clearance.
- Cost Range: £7,000 – £18,000
- Ideal For: Homeowners looking for a budget-friendly extension with a modern, minimalist look.
- Why Choose This Style? Lean-to conservatories provide a bright, practical space with a lower overall build cost due to their straightforward design and minimal materials.
Victorian Conservatory Cost
A Victorian conservatory is a classic choice with an elegant, curved design. Featuring a bay front and decorative roof detailing, this style enhances both modern and period homes.
- Cost Range: £9,000 – £25,000
- Ideal For: Homeowners who want a traditional aesthetic with plenty of natural light.
- Why Choose This Style? The multi-faceted shape creates a spacious, open feel, making it perfect for dining areas, lounges, or garden rooms.
Edwardian Conservatory Cost
An Edwardian conservatory provides a square or rectangular layout, maximising floor space for furniture and usability. This design offers a modern take on the traditional conservatory with a flat-fronted roofline.
- Cost Range: £9,500 – £26,000
- Ideal For: Homeowners wanting a practical, open-plan space with a timeless design.
- Why Choose This Style? The symmetrical shape ensures efficient use of space, making it perfect for larger seating areas, home offices, or playrooms.
Orangery Cost
An orangery is a hybrid between a conservatory and a traditional extension, featuring brick pillars, a lantern-style roof, and large glass panels. Orangeries provide a luxurious, all-year-round living space.
- Cost Range: £15,000 – £35,000+
- Ideal For: Homeowners seeking a high-end, solid structure that blends seamlessly with their property.
- Why Choose This Style? Orangeries offer superior insulation, a more private feel, and a premium finish, making them ideal for kitchens, lounges, or open-plan living spaces.
L-Shaped & Bespoke Conservatory Costs
For homeowners looking for something unique, L-shaped, T-shaped, and custom conservatories allow for fully tailored designs that fit the existing architecture of your home.
- Cost Range: From £12,000+, depending on size and specifications.
- Ideal For: Those who need a custom-built structure with specific design elements.
- Why Choose This Style? Bespoke conservatories offer complete flexibility in layout, materials, and glazing, ensuring a perfect fit for larger or awkwardly shaped spaces.
Additional Costs & Considerations
When budgeting for a conservatory, it’s important to consider additional costs beyond the structure itself. At Celestial Windows, we guide homeowners through every step, ensuring all factors are accounted for. Below, we explore planning permission, foundation costs, heating and cooling options, and the impact on home insurance and property value.
Planning Permission & Building Regulations
In most cases, conservatories are considered permitted development, meaning you won’t need planning permission. However, there are exceptions, such as:
- If the conservatory exceeds 50% of your home’s original footprint.
- If it is higher than four metres or extends beyond the rear wall by more than three metres (semi-detached) or four metres (detached homes).
- If you live in a listed building or conservation area, where additional restrictions apply.
Building Regulations
Even if planning permission isn’t required, your conservatory must meet building regulations if:
- It is not separated from the main house by external-quality doors.
- It has electrical or heating installations that need approval.
- The roof or glazing covers more than 75% of the structure.
At Celestial Windows, we ensure all conservatories meet current UK regulations, giving you peace of mind.
Foundations & Base Costs
A solid foundation is essential for structural stability and longevity. Costs vary depending on:
- Dwarf walls vs full-height glass – A dwarf wall foundation provides additional insulation and support but increases material costs.
- Ground conditions – Poor soil or sloped land may require reinforced footings, adding to the budget.
- Existing patios or decking – If a base isn’t suitable, it may need removal and replacement, increasing labour costs.
A properly built foundation ensures your conservatory remains secure, weather-resistant, and long-lasting.
Heating & Cooling Costs
A well-insulated conservatory should remain comfortable throughout the year, but additional heating and cooling options can enhance comfort.
Heating Options
- Underfloor Heating – Energy-efficient and discreet, but comes with higher upfront costs.
- Radiators – A cost-effective solution, though they take up wall space.
- Electric Heaters – Easy to install but less efficient for long-term use.
Cooling & Ventilation
- Opening Windows & Roof Vents – Essential for airflow and preventing overheating in summer.
- Air Conditioning – A premium option, ideal for larger conservatories or south-facing homes.
- Solar-Control Glass – Reduces heat build-up, improving energy efficiency.
We offer energy-efficient glazing and roofing options to keep your conservatory comfortable year-round.
Home Insurance & Property Value Impact
Will a Conservatory Affect My Home Insurance?
Many insurance providers class a conservatory as part of the main home, meaning it should be covered under your existing buildings insurance. However:
- You must inform your insurer about the new addition.
- Upgraded security features, such as multi-point locking systems, may reduce premiums.
- If the conservatory is left unheated, insurers may exclude damage from extreme weather.
Does a Conservatory Add Value to Your Home?
A well-designed conservatory can add between 5-10% to your home’s value, making it a worthwhile investment. Homes with modern, energy-efficient conservatories are more attractive to buyers, especially if the space is usable year-round.
Get Expert Guidance on Your Conservatory Project
We help homeowners navigate planning permissions, building regulations, and energy-efficient upgrades to ensure their conservatory is a valuable addition. If you’re planning a conservatory, get in touch with our team today to discuss your design, budget, and installation options.
How to Keep Conservatory Costs Down
A conservatory is a great way to add extra living space and value to your home, but costs can quickly add up. At Celestial Windows, we help homeowners in Middlesbrough, Teesside, and the North East find the best balance between quality, affordability, and long-term value. Here’s how you can reduce conservatory costs without compromising on durability or style.
Choosing the Right Size & Materials
The size and materials of your conservatory play a major role in the overall cost. By carefully selecting the right combination, you can maximise value while staying within budget.
- Opt for a lean-to conservatory – This is the most cost-effective style, as its simple design requires fewer materials and less labour.
- Choose uPVC over aluminium or timber – uPVC frames are durable, energy-efficient, and the most affordable option. Aluminium and timber, while stylish, come at a premium.
- Consider standard sizes instead of bespoke designs – Custom conservatories require additional planning, materials, and structural work, increasing costs.
- Select double glazing instead of triple glazing – If your conservatory isn’t used year-round, double glazing is a cost-effective choice that still provides insulation.
Comparing Quotes from Multiple Installers
Getting quotes from different suppliers helps ensure you’re getting the best price for the quality and service you need.
- Request at least three quotes – This allows you to compare costs, materials, and guarantees.
- Check what’s included – Some companies offer lower initial quotes but exclude essentials like foundations, installation, or roof upgrades.
- Look beyond price alone – A lower quote might mean cheaper materials, poor workmanship, or hidden costs.
Considering DIY or Part-Build Options
Some homeowners choose DIY or part-build conservatories to cut costs, but this comes with risks.
Where DIY Can Save Money:
- Buying a self-build conservatory kit reduces labour costs.
- Simple lean-to designs are easier for experienced DIYers to install.
- If you have existing foundations and a base, installation costs can be lower.
Where DIY Can Lead to Costly Mistakes:
- Poor installation can cause leaks, draughts, or structural issues.
- Planning permission and building regulations can be complex to navigate.
- Hiring a professional to fix mistakes can end up costing more than professional installation in the first place.
Get the Best Value for Your Conservatory
Saving money on a conservatory doesn’t mean cutting corners. By choosing the right materials, comparing quotes, and working with an experienced installer, you can get a high-quality, stylish conservatory at a competitive price.
We’re committed to delivering affordable, energy-efficient conservatories without compromising on quality. Contact us today for a free, no-obligation quote and expert advice on designing a conservatory that fits your budget.
FAQs
What is the average cost of a conservatory in the UK?
The average cost of a conservatory in the UK ranges between £7,000 and £30,000, depending on the size, style, materials, and glazing options.
- Small lean-to conservatory: £7,000 – £10,000
- Medium Edwardian or Victorian conservatory: £12,000 – £19,000
- Large bespoke or orangery-style conservatory: £25,000+
Additional factors like solid roofs, triple glazing, or custom features can increase the overall price. For an accurate quote tailored to your home, contact us today.
What is the cheapest type of conservatory?
A lean-to conservatory is the most affordable type due to its simple design and minimal materials. Prices start from around £7,000, making it an ideal choice for homeowners on a budget.
A polycarbonate roof instead of glass and uPVC frames instead of aluminium or timber can help further reduce costs.
Does a conservatory add value to a house?
Yes, a well-designed conservatory can add between 5-10% to your home’s value, depending on its size, style, and energy efficiency.
Buyers are more likely to be attracted to homes with year-round usable conservatories that are well-insulated, stylish, and seamlessly integrated with the property. To maximise value, consider:
- High-quality glazing for better insulation.
- A solid or hybrid roof for improved comfort.
- A spacious, well-proportioned design that complements your home’s layout.
A poorly built or outdated conservatory may not add significant value, so choosing a reputable installer like Celestial Windows is key.
How long does a conservatory last?
A conservatory can last between 20 to 50 years, depending on the materials, build quality, and maintenance.
- uPVC conservatories typically last 20-30 years with proper upkeep.
- Aluminium and timber conservatories can exceed 40 years if maintained well.
- Roofing and glazing choices impact longevity—high-quality glass and solid roofs tend to last longer than polycarbonate alternatives.
Regular cleaning, resealing, and ensuring good drainage can help extend the lifespan of your conservatory.
Do you need foundations for a conservatory?
Yes, all conservatories need a solid foundation to prevent subsidence, cracking, or structural instability.
The type of foundation required depends on the size and weight of the conservatory:
- Dwarf wall conservatories need deeper foundations for stability.
- Full-height glass conservatories may require reinforced footings.
- Floating bases like ConservaBase can be used for quicker, hassle-free installation.
Is a conservatory cheaper than an extension?
Yes, a conservatory is usually cheaper than a traditional house extension, making it a cost-effective way to add living space.
- Basic conservatory: From £7,000
- Large, fully fitted conservatory: Up to £30,000
- Single-storey brick extension: £30,000+
While a conservatory is more affordable and quicker to install, an extension provides greater structural integration with the home. Choosing an orangery—a mix of a conservatory and an extension—offers a midway option with solid walls and a lantern roof.
Over To You
The cost of a conservatory depends on several key factors, including size, style, materials, glazing, roofing, and installation method. A small lean-to conservatory is the most budget-friendly option, while larger bespoke designs or orangeries require a higher investment. The choice between uPVC, aluminium, or timber frames, as well as double or triple glazing, also affects the overall price.
Investing in quality materials, professional installation, and energy-efficient glazing ensures your conservatory remains a comfortable, long-lasting addition to your home. While DIY options may seem cost-effective, professional installation guarantees structural integrity, compliance with building regulations, and a polished finish.
We provide bespoke conservatory solutions tailored to your home and budget. Whether you’re looking for a classic Victorian conservatory, a modern Edwardian design, or a luxury orangery, our expert team will guide you through every step.
Get Your Free Conservatory Quote
For an accurate, no-obligation quote, contact Celestial Windows today. Our team will help you find the perfect conservatory that matches your home, lifestyle, and budget.
Start your conservatory project today—get in touch for a consultation and personalised quote.
