Adding a conservatory is one of the most popular ways UK homeowners create more space, bring in more natural light, and gain a room they can actually use throughout the year. Whether you’re planning to build from scratch or improve the conservatory you already have, the costs vary widely – and the right choice depends on your budget, your home, and how you want to use the space.
A new conservatory typically costs between £9,000 and £18,000 in 2026, according to Checkatrade, with lean-to designs at the lower end and Victorian or Edwardian styles costing more. If your existing structure is sound, upgrading the roof is often a more affordable route – a full replacement roof ranges from around £6,300 for polycarbonate up to £18,225 or more for glass, while insulated roof panels such as CosyPanels® start from £3,146 including VAT.
This guide covers both options. You’ll find a clear breakdown of costs by style, size, material and roof type, plus practical advice on what affects your final bill and how to get the best value for your budget.
Conservatory Costs at a Glance
Use this table as a starting point when comparing your options. New-build and roof replacement prices are based on Checkatrade’s 2026 data and assume a fully fitted installation, including labour, materials, groundwork and preparation.
| Type | Typical size | Price range |
|---|---|---|
| Lean-to | 3.5m x 3.5m | £9,000–£14,250 |
| Victorian | 3.5m x 3.5m | £12,000–£17,500 |
| Edwardian | 3.5m x 3.5m | £10,500–£18,000 |
| Orangery | 16m² | From £32,500 |
| Bespoke / large | Varies | £25,000–£100,000+ |
| Full roof replacement | Varies by size | £6,300–£18,225+ |
| CosyPanels® insulated roof panels | Varies by size | From £3,146 including VAT |
Prices are generally higher in London and the South East. Always get a written, itemised quote before committing – regional variation and project complexity can move costs significantly in either direction.
Types of Conservatories and What They Cost
Choosing the right conservatory style shapes both the look of your home and your final bill. Here’s how the most common UK styles of conservatory compare.
Lean-to Conservatory Cost
A lean-to conservatory attaches to the side of your house with three walls and a simple sloping roof. It’s the most affordable and straightforward style to install, with prices ranging from £9,000 to £14,250 for uPVC or timber versions. If your priority is adding usable space on a sensible budget, this is usually the best place to start.
Victorian Conservatory Cost
Victorian conservatories feature a pitched roof and a rounded or faceted frontage – one of the most recognisable styles on British homes. Prices run from £12,000 to £17,500. The curved bay design adds real character, which is why Victorian conservatories remain so popular.
Edwardian Conservatory Cost
Edwardian conservatories share the same pitched roof as Victorian designs but have a flat, square frontage. Prices sit in a similar range, from £10,500 to £18,000. The square shape gives you more usable floor space for the same footprint – a practical choice if you want a bright, open room rather than an ornate one.
Gable-End Conservatory
A gable-end conservatory has a full-height, vertical front panel that creates a grand, light-filled space with impressive ceiling height. Costs vary too widely for a reliable ballpark figure, as the design depends heavily on the size of the gable, the materials used and the complexity of the build. If you’re considering this style, ask a specialist installer to assess your property.
Orangery Cost
An orangery sits between a conservatory and a full home extension, combining solid brickwork with large glazed sections and a central lantern roof. The sturdier construction means a higher price point – a 16m² orangery averages around £32,500.
Bespoke and Large Conservatory Cost
For larger or fully bespoke conservatories, costs rise significantly. Expect to pay from around £25,000 for a generous bespoke design, with high-specification or large-format conservatories reaching £40,000 to £100,000 or more. At this level, the final price depends on the complexity of the design, the materials chosen and any structural work required.
How Much Does a New Conservatory Cost?
Which? research puts the average cost of a new conservatory at around £15,000. A standard 3m x 3m conservatory starts from approximately £13,950, while adding an opening into the house – which requires knocking through the external wall – brings the cost up to around £18,500.
That opening into the house is one of the most significant cost drivers in a new build. It involves structural work on the existing wall, including lintels, making good the internal finish, and potentially rerouting utilities. If you want your conservatory to feel like a true extension of your living space, budget for this from the outset.
Conservatory Costs by Frame Material
The material you choose for your conservatory frame affects both the upfront price and what you’ll spend on maintenance over the years.
| Material | Price range | Maintenance | Best for |
|---|---|---|---|
| uPVC | Lower | Minimal | Budget-conscious buyers wanting low upkeep |
| Aluminium | Mid to high | Very low | Modern looks and slim sightlines |
| Timber | Higher | Regular painting/staining needed | Traditional or period properties |
uPVC Conservatory Cost
uPVC is the most popular and affordable frame material. It’s durable, weather-resistant and needs very little maintenance beyond occasional cleaning. Most of the Checkatrade price ranges in this guide are based on uPVC frames.
Aluminium Conservatory Cost
Aluminium frames cost more than uPVC but offer a slimmer, more contemporary look with an excellent strength-to-weight ratio. They’re a good choice if you want large glazed panels with minimal visible framing. Maintenance requirements are low, and aluminium frames are highly durable.
Timber Conservatory Cost
Timber frames are the most expensive option and need the most upkeep – expect to repaint or re-stain every few years. That said, timber offers a warmth and character that uPVC and aluminium can’t replicate, making it popular for period properties. Factor the ongoing maintenance cost into your long-term budget.
What Else Affects Conservatory Prices?
Beyond the style and material of your conservatory, several other factors can move your final cost up or down.
Size and Shape
Larger conservatories cost more in both materials and labour. Unusual shapes, such as curved bays or gable ends, add complexity and typically push prices higher. Square and rectangular footprints are the most straightforward and cost-effective to build.
Glazing Type
Double glazing is standard and keeps costs manageable. Triple glazing offers better insulation and noise reduction but comes at a premium. Specialist glazing – such as self-cleaning, tinted or solar-control glass – adds further cost but can significantly improve comfort.
Base and Foundations
Your conservatory needs a solid base, and the type of foundation depends on your ground conditions and the size of the build. A standard concrete base is usually the most affordable option. If your ground conditions are poor, or the site needs significant levelling or excavation, groundwork costs can rise quickly.
Finishing Touches and Extras
The base price of a conservatory rarely includes everything you’ll want. Popular extras include:
- Blinds (around £2,650)
- Underfloor heating
- A log burner (around £2,000)
- Internal plastering or decorating
- Electrical installation and lighting
- Flooring
These additions can push your total cost well beyond the initial quote, so build a buffer into your budget from the start.
Where You Live
Labour costs vary across the UK. If you’re based in London or the South East, expect to pay more for installation than homeowners in other regions. It’s worth getting local quotes rather than relying on national averages alone.
Conservatory Roof Types and How They Affect Cost
Your roof is one of the biggest decisions in any conservatory project – it affects comfort, appearance, noise levels and long-term running costs.
Double-Glazed Glass Roof
A glass roof lets in maximum natural light and gives your conservatory a clean, open feel. It offers better insulation than polycarbonate and is the right choice if daylight and a premium finish are your priorities. Glass roofs sit at the higher end of the price range, typically costing £600–£1,200 per square metre.
Tiled or Solid Roof
A tiled or solid roof combines a traditional tiled exterior with an insulated internal finish, making your conservatory feel much more like a proper room. It’s quieter during rain, better at retaining warmth and generally comfortable year-round. The added weight means building regulations approval is usually required, and structural checks are essential before installation. See our tiled conservatory roof guide.
Polycarbonate Roof
Polycarbonate is the most affordable traditional roofing option, typically costing £400–£800 per square metre. It’s lightweight and quick to install, but offers far less insulation than the alternatives and is noisy in the rain. See our guide to polycarbonate roofs and their alternatives.
Insulated Panel Roofs
Insulated roof panels such as CosyPanels® replace the glass or polycarbonate panes in your existing roof frame with lightweight panels made from a high-density XPS insulation core between rigid PVC outer layers. In many cases no structural changes are needed, so installation is quicker and less disruptive than a full roof replacement. CosyPanels® are fitted from one day, start from £3,146 including VAT, and come with a 2-year insurance-backed guarantee and a 10-year product warranty. If your conservatory is too hot in summer and too cold in winter, this is one of the most practical and cost-effective ways to fix it. See our conservatory roof insulation cost guide.
What drives roof pricing?
- The material you choose (polycarbonate, glass, tiled or insulated panels)
- The size and shape of your conservatory
- Whether your existing frame and structure can support the new roof
- The complexity of the installation
- Any extras such as ventilation or internal finishing
- Your location, particularly if you’re in London or the South East
Running Costs and Long-Term Value
The upfront cost of your conservatory is only part of the picture. It’s worth thinking about what you’ll spend over the years – and what you’ll gain.
Ongoing costs to plan for include:
- Heating and cooling, especially if the space isn’t well insulated
- Annual maintenance, including cleaning, resealing joints and checking for leaks
- Replacing worn seals, locks and roof panels over time
On the other side of the ledger, a well-insulated conservatory adds long-term value. Industry sources suggest a quality conservatory can add in the region of 5–10% to your property’s value, though this varies with your home, location and the standard of the work – treat it as a general guide rather than a guarantee.
Better insulation also reduces heat loss, which lowers your heating bills over time and makes the room genuinely usable in both winter and summer. A conservatory that sits empty for six months of the year is a wasted asset. One that’s comfortable all year round earns its keep.
How Much Does a Conservatory Roof Replacement Cost?
If your conservatory frame and base are in good condition, upgrading the roof is often the most cost-effective way to transform how comfortable the space is. According to Checkatrade’s 2026 data, the average cost of a full roof replacement is around £10,000, with prices ranging from £6,300 to over £18,225 depending on material, size and complexity. Insulated roof panels, which keep your existing frame, start from £3,146 including VAT.
Roof Replacement Cost by Roof Type
| Roof type | Cost per m² | Notes |
|---|---|---|
| Polycarbonate | £400–£800 | Most affordable full roof; least insulation |
| Tiled / solid | £600–£900 | Better insulation; usually needs building regs approval |
| Glass | £600–£1,200 | Best natural light; premium finish |
Roof Replacement Cost by Conservatory Size
| Roof type | 3m x 3.5m | 4m x 4m | 4.5m x 4.5m |
|---|---|---|---|
| Polycarbonate | £6,300 | £9,600 | £12,150 |
| Tiled | £7,875 | £12,000 | £15,188 |
| Glass | £9,450 | £14,400 | £18,225 |
A typical full roof replacement takes two to five days, while CosyPanels® insulated panels are fitted from one day. Labour for a full replacement costs roughly £400 per person per day. Factor in potential extras such as internal finishing, access equipment and any ventilation upgrades you want at the same time.
New Conservatory or Roof Upgrade: Which Is Right for You?
The simplest test is the condition of your existing frame and base. If the structure is sound – no significant rot, warping or damage – upgrading the roof can deliver most of the comfort benefit of a new build at a fraction of the cost.
A survey before you commit is always worthwhile. A good installer will assess whether your frame can support the new roof without additional work. If the frame is in poor condition, or you want to significantly change the size or layout of the space, a full rebuild makes more sense. But for most homeowners with a reasonably modern conservatory, a roof upgrade is the faster, more affordable and less disruptive route to a space you’ll actually want to spend time in.
Paying for Your Conservatory: Finance Options
A conservatory is a significant investment, and paying for it upfront isn’t the only option. CosyPanels offers flexible finance plans that let you spread the cost of your roof upgrade into manageable monthly payments.
Finance is subject to application and personal circumstances. Before you commit, make sure you understand the total amount repayable, not just the monthly figure. CosyPanels is authorised and regulated by the Financial Conduct Authority (FN781611) for credit broking activities.
Ways to Save on Your Conservatory Cost
Getting the most from your budget doesn’t mean cutting corners – it means making smarter decisions from the start:
- Get multiple written quotes. Compare at least three like-for-like quotes before committing. Prices vary more than most people expect, and a written quote protects you if costs change.
- Check regulations early. Some roof types – particularly tiled and solid roofs – usually need building regulations approval. Confirming this early saves delays and unexpected fees.
- Decide between roof upgrade and full rebuild upfront. If your existing frame and base are in good condition, upgrading the roof can deliver most of the benefit at much lower cost.
- Budget for extras from day one. Disposal, access equipment, internal finishing, and add-ons like blinds or underfloor heating can add thousands to your final bill.
- Explore energy-efficiency support. Grants specifically for conservatory upgrades are not widely available, but broader energy-efficiency schemes may apply depending on your circumstances.
If a roof upgrade isn’t in your budget yet, heat reduction film is a lower-cost option for managing solar heat and glare in the short term – a useful stopgap while you plan the bigger upgrade.
Conservatory Cost FAQs
Can I install a conservatory myself to save money?
You can take a DIY approach to some elements – fitting blinds or laying flooring, for example. But the structural work involved in a conservatory installation or roof upgrade isn’t suitable for most DIY projects. Groundwork, weatherproofing and glazing all need specialist skills and, in some cases, building regulations sign-off. See our guide to DIY vs professional roof insulation.
Are there grants for conservatory improvements?
There are currently no widely available grants specifically for conservatory upgrades in the UK. However, broader government energy-efficiency schemes – such as ECO4 – may cover related home improvements depending on your household income and property type. Check the eligibility criteria or speak to an energy adviser.
Do I need a new conservatory or just a new roof?
If your conservatory frame and base are structurally sound, upgrading the roof is usually all you need to transform the space. A new or insulated roof improves insulation, reduces noise and makes the room far more comfortable year-round – without the disruption or cost of a full rebuild. Have an installer survey your existing structure first.
Do I need planning permission for a conservatory?
Most conservatories fall under permitted development rights, so you won’t need planning permission as long as the build meets certain size and position criteria. This doesn’t apply to all properties, particularly listed buildings, homes in conservation areas, or homes that have already used their permitted development allowance. Tiled and solid roof replacements usually need building regulations approval because of their additional weight. Always check with your local planning authority before starting work.
Budgeting for Your Conservatory
Whether you’re building from scratch or upgrading an existing space, here’s a quick summary to help you plan your budget:
| Route | Typical cost range | Best for |
|---|---|---|
| Lean-to (new build) | £9,000–£14,250 | Budget-focused buyers wanting maximum value |
| Victorian / Edwardian (new build) | £10,500–£18,000 | Homeowners wanting character and space |
| Orangery (new build) | From £32,500 | Those wanting a room that feels like a permanent extension |
| CosyPanels® insulated roof panels | From £3,146 including VAT | Year-round comfort in your existing conservatory, fitted from one day |
| Roof replacement (polycarbonate) | £6,300–£12,150 | A new roof on a tight budget, with limited insulation |
| Roof replacement (tiled or glass) | £7,875–£18,225+ | Highest insulation (tiled) or maximum light (glass) |
The right choice comes down to your budget, how you want to use the space, and the condition of your existing conservatory. The best next step is a no-obligation quote – it gives you a real number to plan around, rather than an estimate.
Ready to find out what your conservatory upgrade could cost? Get a free, no-obligation quote from CosyPanels and we’ll help you find the right solution for your home and your budget.