10 Key Things to Know About the Cost of a Conservatory

Installing a conservatory is one of the most effective ways to expand your living space, bring in natural light, and enhance the value of your home. However, before embarking on this home improvement journey, it’s vital to understand the cost of a conservatory, what influences it, and how to plan effectively. In this blog, we explore ten essential factors every UK homeowner should know before committing to conservatory installation.

1. Understand the Average Cost of a Conservatory

The cost of a conservatory can vary greatly depending on size, materials, glazing, roofing, and the complexity of the installation. On average in the UK:

• Lean-to conservatory: £8,000 – £12,000
• Victorian or Edwardian conservatory: £10,000 – £18,000
• Orangery: £18,000 – £30,000+

These figures include materials, labour, and VAT, though custom features can raise the total significantly.

2. Size Matters

The larger the structure, the higher the cost — not just in materials but also in groundwork, insulation, and labour. Always weigh up how much space you actually need versus how much you’re willing to spend.

Tip:

Start by measuring the available garden area and consider how much of it you’re happy to convert into living space.

3. Choose the Right Materials

Materials significantly impact pricing. Most UK homeowners opt for UPVC due to its cost-effectiveness and low maintenance. Alternatives like timber or aluminium offer more durability or aesthetic appeal but at a higher price.

Material cost overview:

• UPVC: Most budget-friendly
• Aluminium: Sleek, modern, higher cost
• Timber: Premium look, high maintenance

4. Roof Type Affects Your Budget

Glass roofs, polycarbonate, and solid tiled roofs all differ in cost and performance. Solid roofs offer better insulation but are pricier, while polycarbonate is cheaper but less energy efficient.

Estimated costs:

• Polycarbonate roof: £2,000 – £3,500
• Glass roof: £3,000 – £5,000
• Tiled/solid roof: £6,000 – £10,000

5. Planning Permission May Be Needed

Most conservatories fall under permitted development, but if you’re building a larger structure or live in a conservation area, planning permission may be required — adding to both time and cost.

Check with your local authority or ask your installer to manage permissions.

6. Glazing Options Add Up

Double and triple glazing improve energy efficiency and comfort, but they come at a higher cost. Features like self-cleaning or tinted glass also increase the price but may be worth the investment in the long term.

Consider:

• Energy ratings (A++ for best performance)
• UV protection
• Noise insulation

7. Labour and Installation Fees

Professional conservatory installation ensures compliance with UK building regs and guarantees quality work. Labour costs typically make up 25–35% of your total budget.

Hiring experienced, trusted installers like SAJE UPVC ensures a smooth build with fewer costly setbacks.

8. Site Preparation and Foundations

Don’t overlook groundwork costs — especially if your site needs levelling or clearing. Drainage, insulation, and foundations are all essential, with costs ranging from £1,000 to £3,000 depending on site conditions.

9. Heating, Electrics and Finishing Touches

Your conservatory should be usable year-round, which may require underfloor heating, radiators, lighting, plug sockets, blinds, and décor. These finishing costs can add £1,000 to £4,000 or more.

Budget Tip:

Include at least 10–15% of your total budget for interior finishes.

10. Long-Term Value and Return on Investment

While the cost of a conservatory can be substantial, it often pays off. Homes with well-designed conservatories sell faster and may fetch 5–10% more on the market. It’s not just an expense — it’s an investment in lifestyle and property value.

Understanding the cost of a conservatory is crucial before you begin. With variables like size, material, roofing, and glazing, the final price can shift dramatically — but careful planning can help you stay within budget while still achieving a beautiful result.

For honest quotes, expert installation, and exceptional service, visit our Conservatories page or contact us directly to learn more about the cost of a conservatory.

📞 Phone: 01329 835 836
📧 Email: sales@sajeupvc.co.uk

Cost of a Conservatory FAQs

Q1: What is the cheapest type of conservatory to build?
A1: A lean-to conservatory with a polycarbonate roof and UPVC frame is typically the most affordable option in the UK.

Q2: Can I finance the cost of a conservatory?
A2: Many installers offer finance options, allowing you to spread the cost over several months or years.

Q3: How long does it take to install a conservatory?
A3: Installation typically takes 3–6 weeks depending on size and complexity.