How Much Does a Conservatory Cost in the UK? (2026 Price Guide)

How Much Does a Conservatory Cost in the UK?

The cost of building a conservatory in the UK depends on size, style, glazing type, foundation requirements, and whether it is a basic structure or a fully insulated “garden room” style build.

Typical conservatory costs:

• Small conservatory: £5,000 – £12,000
• Medium conservatory: £10,000 – £25,000
• Large conservatory: £20,000 – £45,000+
• Premium or fully insulated garden room: £30,000 – £70,000+

Most homeowners spend between £10,000 and £30,000 for a standard conservatory installation.

Conservatory Cost Per m²

Typical installed costs:

• Basic uPVC conservatory: £900 – £1,500 per m²
• Mid-range conservatory: £1,200 – £2,200 per m²
• High-end aluminium or tiled roof conservatory: £2,000 – £3,500+ per m²

The specification of glazing and roofing is the biggest driver of cost per square metre.

What Affects the Cost of a Conservatory Build?

1. Size of the Conservatory

Larger conservatories require more materials, glazing, and structural support.

Typical sizes:

• Small: 10–12m²
• Medium: 12–20m²
• Large: 20–40m²+

Even small increases in size can significantly affect overall cost due to glazing and roof structure requirements.

2. Type of Conservatory

Different styles vary in complexity and price:

• Lean-to: simplest and cheapest
• Edwardian: more floor space efficiency
• Victorian: more decorative, higher glazing costs
• Gable-ended: taller and more complex
• Orangery-style: more masonry, higher-end finish

3. Roof Type

Roof choice is one of the biggest cost factors:

• Polycarbonate roof: cheapest option
• Glass roof: mid-range, better insulation
• Tiled insulated roof: highest cost, closest to extension standard

Upgrading the roof can transform the conservatory into a year-round living space.

4. Foundations and Groundworks

Ground conditions often influence pricing significantly:

• Standard strip foundations: £1,000 – £3,000
• Poor ground / reinforcement required: £3,000 – £8,000+
• Sloping sites or drainage issues: additional costs apply

Many projects increase in cost once excavation begins.

5. Glazing and Doors

Window and door specification impacts both cost and performance:

• Double glazing: standard
• Triple glazing: higher cost, better efficiency
• Bi-fold doors: £2,000 – £8,000+ depending on size
• Sliding doors: mid to high cost range

6. Heating and Insulation

To make a conservatory usable year-round, upgrades are often required:

• Underfloor heating: £1,000 – £5,000+
• Radiator connection: £500 – £2,000
• Insulated roof upgrade: £3,000 – £15,000+
• Full thermal conversion: significant additional cost

Labour Costs for Conservatory Installation

Typical labour rates:

• Builder: £200 – £350 per day
• Glazing installer: £250 – £500 per day
• Small build team: £600 – £1,500 per day

Typical build time:

• Simple conservatory: 3–7 days
• Medium conservatory: 1–2 weeks
• Large or complex build: 2–4 weeks

Example Conservatory Build Costs

Small Lean-To Conservatory

• Structure & glazing: £4,000 – £8,000
• Foundations: £1,000 – £2,500
• Labour: £1,000 – £3,000
• Total: £5,000 – £12,000

Medium Victorian Conservatory

• Structure: £8,000 – £15,000
• Glass and doors: £3,000 – £8,000
• Foundations: £2,000 – £5,000
• Labour: £3,000 – £8,000
• Total: £10,000 – £25,000

Large Insulated Conservatory / Orangery

• Structure: £15,000 – £30,000
• Tiled roof system: £8,000 – £20,000
• Glazing & doors: £5,000 – £15,000
• Foundations: £5,000 – £10,000
• Labour: £5,000 – £15,000
• Total: £30,000 – £70,000+

Hidden Costs in Conservatory Builds

Additional costs may include:

• Planning permission or building regs: £200 – £1,000+
• Drainage relocation: £500 – £3,000
• Electrical installation: £500 – £2,500
• Heating upgrades: £1,000 – £10,000+
• Flooring: £500 – £5,000
• Internal finishing: £1,000 – £10,000+

These extras often determine the final usable cost of the space.

Regional Price Differences in the UK

• London & South East: 15%–35% higher
• Midlands: average UK pricing
• North of England: slightly lower labour costs
• Rural areas: increased transport and logistics costs

How Long Does a Conservatory Take to Build?

Typical timelines:

• Small conservatory: 3–7 days
• Medium conservatory: 1–2 weeks
• Large conservatory: 2–4 weeks
• Insulated orangery: 3–6 weeks

Weather conditions and groundwork complexity can extend build times.

How to Get an Accurate Conservatory Quote

To accurately price a conservatory build, contractors should assess:

• Exact dimensions and layout
• Ground conditions and foundations
• Roof type and insulation requirements
• Access for materials and glazing
• Drainage and utility connections
• Internal finishing requirements
• Heating and electrical integration

Conservatory projects are often underquoted when internal finishing and groundwork costs are not fully considered.

How Pricing Penguin Works (for Conservatories and Other Trades)

Conservatory builds are one of the most misunderstood home improvement projects in terms of pricing. Many homeowners see online adverts showing low entry prices and assume they can get a fully finished living space for that figure, without accounting for foundations, glazing upgrades, insulation, or internal finishes.

This often leads to a mismatch between expectations and reality when contractors provide detailed quotations.

Pricing Penguin solves this by giving homeowners a realistic, data-driven cost range before they contact a builder or conservatory installer.

Instead of relying on generic advertising or partial pricing, customers can quickly understand:

• The likely cost of a conservatory for their property size
• How roof type dramatically affects pricing
• The impact of foundations and groundworks
• The cost difference between basic and insulated builds
• Whether heating and finishing costs should be included in their budget
• If their expectations align with real-world installation costs

This ensures homeowners approach contractors with a realistic understanding of what their project will cost.

For builders and installers, Pricing Penguin improves lead quality by filtering out enquiries based on unrealistic budgets or incomplete understanding of project scope.

Rather than spending time producing quotes for customers who are not financially aligned, contractors can focus on serious enquiries that already understand the likely investment.

Pricing Penguin acts as a pricing bridge between customer expectations and real construction costs, helping homeowners make informed decisions while enabling contractors to work more efficiently and profitably.

FAQ

How much does a conservatory cost in the UK?

Most conservatories cost between £10,000 and £30,000, depending on size and specification.

What is the cheapest type of conservatory?

Lean-to conservatories are generally the most affordable option.

Do conservatories add value to a house?

Yes, when well-designed and properly insulated, they can increase usable living space and improve property value.

Can a conservatory be used all year round?

Yes, but insulation, heating, and roof upgrades are usually required.

Conclusion

Conservatory builds in the UK typically cost between £5,000 and £70,000+, depending on size, structure, glazing, and insulation level.

For homeowners, understanding these cost drivers is essential to avoid unrealistic expectations. For contractors, accurate pricing depends on a full assessment of groundworks, structure, and finishing requirements.

When customers understand realistic pricing before requesting quotes, projects move forward more smoothly, expectations are aligned, and contractors can focus on high-quality, conversion-ready work.