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Conservatory Cost

An orangery (real roof conservatory) and glass UPVC conservatory cost will vary from less than £4,000 for small, supply only units to more than £40,000 for large. The average cost of a conservatory will usually be £6,800-£11,600.
Low Cost £4,500-£7,500
Average Cost £6,800-£11,600
High Cost £10,300-£15,000+

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Get Free Conservatory or Orangery Quotes from Local Professionals in Seconds

How much does a conservatory cost? How much does an orangery cost? Orangery (real roof conservatory) and glass UPVC conservatory prices vary from less than £4,000 for small, supply only units to more than £40,000 for large, bespoke conservatories installed with dwarf walls of brick and a slab foundation. But just what is the overall cost of adding a conservatory to your home?

While that’s a wide range, most homeowners pay between £5,500 and £15,000 for a fitted conservatory, but we recommend getting several estimates and comparing.

Orangery & UPVC Conservatory Costs
Low Cost Average Cost High Cost
Installed Cost £4,500-£7,500 £6,800-£11,600 £10,300-£15,000+
Size (metres) 2.5×3 to 3×3 3×4 to 4×4 4×6 and larger
Styles (1) Lean-to Lean-to, other standard Standard or bespoke
Shape Rectangular Rectangular, E, V, G (2) P, L, T or B (3)
Glazing Poly-carbonate Poly-carbonate, glass glass
Walls Fully glazed Fully glazed or dwarf Dwarf brick walls
Foundation Steel frame, plinths Steel frame, slab Footings & slab
Roof Poly-carbonate Poly-carbonate, glass Glass, tile, slate
Colour White White or other
White, wood effect, ,other
Features None or few Few Many
Installation Simple Moderate Moderate or difficult
  • (1) Styles other than the basic lean-to include Victorian, Edwardian and Gable/Georgian styles with more complex design in walls and the roof.
  • (2) E=Edwardian, V=Victorian and G=Georgian/Gable
  • (3) P, L, T and B are letters used to reflect the shape of the conservatory.


This improvement costs guide includes prices for fully fitted conservatories, the more common choice for homeowners without the time or skill for installation. UPVC conservatory cost factors are included, so you’ll know the price to expect for the conservatory design you plan to purchase. UPVC is also written uPVC and PVC-U. It means polyvinyl-chloride that is plasticised, so it is more rigid and stronger than PVC with added plasticises for flexibility.

The table above shows prices for popular conservatories. The table and cost factors defined below will give you a clear idea of how much to expect to spend on the conservatory you want.

Popular Conservatory Types and Cost

There are six basic styles: Lean-to, Edwardian, Victorian, Georgian/Gable, letter shapes and bespoke.

Lean-to: This is the simplest style and costs the least. It has three walls, the fourth wall being the exterior wall of the home, and a roof with only enough slope to allow water drainage. The roof is usually poly-carbonate rather than glass. A loggia is a type of lean-to. The lean-to or loggia is suited to any size. Lean-to conservatory cost is £5,500 to £10,000 installed.

Edwardian, Victorian, Georgia/Gable: These conservatories follow the design features each architectural style is known for. The roofs are sloped and can be hipped too. Each conservatory manufacturer has multiple designs in these styles. Most are suited to medium and large spaces. The UPVC conservatory price for these styles ranges from £8,500 to £15,000

L, P, T and B: Shaped like the letters, they are built in a range of medium and large sizes. Cost is £10,000 to £15,000 when not a bespoke design.

Bespoke: Each bespoke conservatory is a custom design to perfectly suit the space you have for it. They are the most expensive and offer the most features and options. Prices start at about £14,000 for small spaces and can exceed £40,000 for a large bespoke unit with slab foundation, dwarf walls and many extra features.

Popular Conservatory Prices by Brand

The table below shows two categories.

Self build conservatory brands sell just the pieces for you to assemble. The leading conservatory brands are Wickes, Roundbrand, K2 and Synseal.

You can hire fitters, of course, but if that’s your plan, you might save money choosing an all-in-one company.

That’s the second category: Popular conservatory brands that provide the conservatory and fit it too. The top fitted conservatory brands are Safestyle, Everest and Anglian.

Self Build Conservatories
Cost Sizes 3x4m
Wickes £1,900-£7,300 1.3×2.5m to 3.1×4,6m £3,765
Roundbrand £2,200-£25,000 1.5×2 to 4×6 and larger £3,885
K2* £1,875-£6,725 3x3m to 4x5m £3,650
Synseal £3,300-£6,700 2.5×3.5m to 4x5m £3,900
Fitted Bespoke Conservatories
Low Cost Average Cost High Cost
Safestyle £4,600-£7,385 £6,655-£9,450 £10,465 and up
Everest £4,500-£7,250 £6,500-£9,250 £10,300 and up
Anglian £4,735-£7,500 £6,785-£9,600 £10,775 and up


K2 conservatories are sold by many self build conservatory companies including Project Conservatory and its sales site Synseal conservatories are also sold widely including by

Factors that Affect UPVC Conservatory Cost

This section will help you plan your budget and narrow the price estimate for the type of conservatory you want for your home.

Size: Lean-to conservatories start at about 2.5×3 metres, listed as 2500x3000mm by some brands. Walls can be standard height or extended height, usually requiring three wall panels. The larger the unit is, the more it will cost.

Style: Lean-to and other rectangular styles are the least expensive. Victorian, with a multi-sided front, cost more. The cost for letter-shaped conservatories is next in the range because of the greater amount of material used and time used to construct them. Bespoke designs are most expensive, since many of the frame pieces and window openings must be custom fitted.

Glazing: Your options are tough poly-carbonate and genuine glass. Poly-carbonate costs less and is much lighter. The disadvantage of poly-carbonate is that cheap forms of it might eventually yellow. If you choose poly-carbonate, ask if the material is treated with UV inhibitor designed to slow or eliminate yellowing. Glass remains clear, though costs much more and breaks more easily. Tempered glass is a good choice for doors, though more expensive than standard glass. Double glazing using low-E glass is more energy-efficient. Triple glazing is available too, but costs significantly more without greatly improving efficiency. Depending on the size of the conservatory, using glass instead of poly-carbonate costs £1,200 to £2,000 more.

Walls: Your options are full steel frame walls with two or three panels or partial walls constructed from steel frame built atop a dwarf wall made of brick. Dwarf walls are manufactured in both modular designs and walls fully built onsite by a bricklayer. Modular and brick walls add £1,200 to £2,800 to the cost of most conservatories, determined by the length and height of the wall.

Foundation: A foundation of concrete plinths is least expensive. Next in cost is a steel-reinforced concrete slab followed by a slab poured with concrete trench footings. The weight of your conservatory will determine which foundation types are suitable. The heaviest units require footings plus a slab. Another option is a dwarf wall and floor combination such as Durabase. It is a modular system assembled onsite.

Roof alternatives: While having a clear roof is preferred by most homeowners both for light and lower cost, it isn’t your only option. Tile or genuine slate is installed on conservatories for shade and enhanced appearance. Upgrading the roof to tile costs £225 to £300/M2 of roof surface. Slate raises cost by £850 to £975/ M2.

Colour: White is the most common and most affordable UPVC colour. Other colours and effects can be added with spray paint or a process called foiling. Any colour paint can be sprayed onto the UPVC, so that is an advantage. However, spray is not as durable as foil. It scratches more easily. Foiling involves adding a material to the UPVC that is bonded with heat. Foil is available in many colours and in wood effects and grains such as beech, rosewood, mahogany and several oaks. Paint costs £100 to £250 more than plain white; Foils cost an additional £275 to £850 depending on the size of the conservatory.

Extra features: You have many options to customise your conservatory. Popular extras are additional vents in the walls or roof, upgraded doors to French or bi-fold, more than one door, upgraded hardware and glass that is bevelled for beauty or obscured for privacy.

Installation difficulty: Removing bushes or small trees to make room for the conservatory is a moderate cost. Examples of difficult installation are removing large trees, changing the location of pipes or drains and installing a conservatory between two parts of the home or two separate buildings.

Finishing your conservatory: As you determine your budget, consider the cost of flooring, furniture, décor and a heater or air conditioner for your new space. These costs are not included in this guide.

Cost of Planning Permission

According to the UK Planning Portal, “Adding a conservatory to your house is considered to be permitted development, not needing an application for planning permission, subject to the limits and conditions listed below.”

Those limits and conditions include that not more than half the land area around the house be used and that the conservatory not be higher than the highest part of the roof. The information can be read here including required distances of a conservatory to property boundaries.

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The company you purchase your conservatory from should know and follow all building regulations, but it is ultimately up to you to follow them.

Is Conservatory Installation a Self Build Job?

If you’re one of the homeowners with the time, proper tools and skills for the work, then you can build your own conservatory. Keep in mind that improper fitting might void the warranty or result in the structural failure of the unit. By building it yourself, the potential cost saving is about £1,600 for small units to more than £5,000 for large conservatories.

How Long Does It Take to Install a Conservatory?

Here are the steps in the process and how long they take. Not all will apply.

  • Installing plinths or a slab: 2-3 days.
  • Installing a dwarf wall: 1-3 days.
  • Building the conservatory: 3-5 days depending on size, style and complexity.

Get Free Conservatory or Orangery Quotes from Local Professionals in Seconds

Get Free Conservatory or Orangery Quotes from Local Professionals in Seconds

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