Conservatory Prices (Our In-Depth Guide for 2026)

1. Conservatory Style & Size

The style and size are major conservatory cost drivers. In general, the more elaborate styles are more expensive.

Victorian designs feature an elegant curved bay front and ornate details, offering classic elegance but higher labour and material costs. While also a period style, Edwardian conservatories are rectangular with pitched fronts, providing generous internal space and slightly easier, less expensive construction.

At the other end of the spectrum, Lean to Conservatories have simple, single-slope roofs, making them the most affordable option but less visually dramatic.

In contrast, Double Hipped roofs require additional structural support and a box gutter, raising costs and complexity. However, they are suitable for bungalows and terraced houses, and they can utilise either a Victorian or Edwardian design.

Finally, Gable End designs provide a striking triangular façade but can also be mid-to-high in price depending on glazing and detailing. Unsurprisingly, larger conservatories demand more materials, glazing, and labour, meaning size directly impacts the budget.

2. Conservatory Roof Material

Roof construction plays a major role in comfort, energy efficiency, and conservatory prices. Different materials provide varying levels of insulation, durability, and light transmission.

Polycarbonate roofs are lightweight and affordable, providing basic weather protection but limited insulation and a shorter lifespan. Glass roofs offer double or triple glazing, with options such as solar control or self-cleaning glass, providing better thermal performance and a premium look, though at a higher price.

Solid roofs, such as the Guardian Warm Roof, are the most expensive. However, the extra price is well worth it, as they provide full insulation, tiled or plastered interiors, a comfortable year-round space, and greater longevity.

At the same time, optional extras like VELUX windows and Guardian Solstice Skylights enhance natural light while maintaining energy efficiency, but they increase cost.

At Crownhill Conservatories, we swear by the Guardian Warm Roof, which is why all our conservatories are fitted with one by default. To help you upgrade from a glass or polycarbonate rood on an existing conservatory, we also offer Conservatory Roof Replacement.

3. Conservatory Frame Material

The material used for the frame determines durability, appearance, maintenance needs, and price.

The most popular conservatory frame material in the UK by far, uPVC is the most cost-effective and requires minimal maintenance, even though it’s a bit bulkier and traditionally used to come with fewer colour options.

Alternatively, aluminium frames are sleek and strong, offering a modern look at a higher cost. Lastly, timber or hardwood frames provide a premium, natural aesthetic and excellent insulation. However, they require ongoing care and add significantly to the budget.

4. Conservatory Glazing

Glazing affects heat retention, light levels, and safety. Higher-performance glazing increases comfort but also raises overall conservatory prices.

Consisting of two panes of glass separated by an insulating gap, double glazing is the most common choice for conservatories in the UK. This design helps reduce heat loss compared to single glazing, making it a practical balance between cost and energy efficiency for most homeowners.

Triple glazing, which adds a third pane of glass, provides even better insulation and improved sound reduction. However, the additional weight and material cost mean it’s typically chosen for higher-spec installations or properties where energy efficiency is a top priority.

In addition, large picture windows cost more because they have to have 6mm glass rather than 4mm glass as standard.

At Crownhill Conservatories, we use Warm Edge glass for the frame glass of all our conservatories which, along with standard double glazing, results in 65% warmer internal edge temperature.  

5. Conservatory Door Type

Door choice affects accessibility, aesthetics, and the ability to open the conservatory to outdoor spaces.

French doors are typically the most traditional option and sit at a moderate price point. They provide a classic appearance and reliable performance but offer a relatively limited opening width.

At the halfway point, sliding doors are generally a mid-range option, allowing wider glass panels and a space-saving design that doesn’t require clearance to open.

Finally, bi-fold doors tend to be the most expensive choice. That’s because their folding panel system, precision track mechanisms, and structural requirements enable large, fully opening sections that create a seamless connection to your garden.

As you’d imagine, the cost of a conservatory can increase further with larger door systems, higher-spec hardware, enhanced glazing, or multiple access points. All of these add materials, installation time, and structural reinforcement requirements.

6. External Finish

The external base structure and finish affect the conservatory’s appearance and integration with the main property.

Brickwork is one of the most common choices, offering a durable and traditional finish that blends well with existing homes at a moderate cost. Brick slips provide a similar visual effect but use a thinner brick veneer, making them a more cost-effective option due to the reduced material weight and conservatory installation time.

Next, render creates a smooth, contemporary finish and can be applied in different colours or textures. Two of the most popular external finish options, brick and render often balance out in terms of your average 4m x 3m conservatory cost.

Here’s why:

While brickwork typically has a higher material price, a rendered finish requires additional labour and materials to apply the render system over blockwork, which increases installation costs.

By the time the wall is prepared, rendered, and finished, the overall expense can be similar to using brick from the start.

Finally, timber cladding offers a premium, natural aesthetic that suits modern or rustic properties. On the downside, it typically comes with higher upfront costs and ongoing maintenance requirements.

Keep in mind that the choice of finish can also influence foundation design and structural support, which may add complexity and affect the final installation cost.

7. Regional Variations

Labour and material costs vary by region. As you’d expect, conservatory prices in London and the South East tend to be a lot higher than those in Plymouth and the South West, for instance.

Additionally, site-specific factors such as difficult access, scaffolding requirements, or restricted working conditions can further raise installation costs.

8. Planning & Compliance

While many conservatories fall under permitted development, some projects require additional approvals. Planning Permission may be needed for larger or listed properties, and Building Regulations ensure structural safety, adequate insulation, and glazing compliance. Surveys or additional structural work can also increase cost and lead time.

9. Optional Extras

Optional extras can enhance your comfort and convenience but will add to your budget.

For example, internal finishes, such as plastered ceilings and decorative cornices improve aesthetics, while heating systems like underfloor heating or radiators make the space usable year-round.

What’s more, lighting and electrics, including downlights and automated controls, add functionality, whereas blinds or roof shading can reduce heat and glare.

Finally, landscaping or external paving may be included to complete the overall project.

Making Sense of Conservatory Prices in 2026

Conservatory prices in the UK can vary significantly based on the interplay of a significant number of factors, including style, size, roof type, frame material, glazing, doors, external finishes, location, compliance, and optional extras.

For instance, a small, Lean-to polycarbonate uPVC conservatory might be the most cost-effective choice, while a large Victorian or Edwardian Guardian Warm Roof conservatory with a Solstice or VELUX roof windows, triple glazing, bi-fold doors, timber frames, and premium finishes would typically sit at the high end of the fully fitted conservatory prices spectrum.

The bottom line is:

When it comes to a bespoke conservatory, there are thousands of combinations – and that’s why a survey is absolutely crucial for an accurate price.