How much does it cost to build a conservatory in the UK?

In this guide

Get a free quote

Find tradespeople near you

Share This Post

Share on facebook
Share on linkedin
Share on twitter
Share on email

In this guide

The cost of building a conservatory has to be one of the first questions that people ask when they’re looking to build a new conservatory or extend an existing one. My aim in this article is to give a clear guide on how much it will cost to build a new conservatory or extend an existing one, so that the process of building or extending a conservatory is a little easier and more straightforward. I’ve gathered the latest prices from the best builders in the UK and so it’s the most accurate information I could find.

Why a conservatory?

Conservatories can be a lot more than just extra space – they can also be used as indoor or outdoor space that’s all decked out. From barbecue areas to dining areas, these rooms are fantastic for entertaining. They can also be used to dry washing outside or use as an extra living area in your home, so they can be great for saving money on your utility bills.

Conservatories are great when it comes to making the most of limited garden space. Which material should I use for a conservatory? You’ve probably seen pictures of conservatories made from pine wood, but you can use a range of different materials to make one, including all types of wood, timber, brickwork and metal. Wood is generally the cheapest and the most widely used, as it’s cheap and easy to install.

How much does it cost to build a conservatory?

Find out how much a new or extended conservatory will cost to build, including everything you’ll need to buy to get the job done. The different costs involved in building a conservatory are Roofing costs This includes the cost of the plywood and any fencing to create a level roof over your conservatory. It also includes the cost of making the proper concrete mix for the roof. A great roof builder to call on for an estimate is Highways England. Fence materials and labour costs If you’re going to install fencing for extra security, that will also need to be fitted to the concrete.

What materials do you need?

As mentioned earlier, you’ll need to factor in the cost of the materials required for a new conservatory, including wood, glass, paint and even some of the walls themselves. However, there’s not one single brand of glass that works for everyone. It depends on how dark you like the glass to be, and how reflective it is. So there is a real chance that what you choose for your conservatory could work for a living room or conservatory, but not for both. At the moment, you can buy a wood cladding for conservatory windows. You can either have wood up to 2mm in thickness, or 2mm-thick polycarbonate, so take that into consideration when you are looking at different materials.

Post a job in minutes & get free quotes from top rated tradespeople​

What is the average cost of a conservatory?

It depends on how big it is, how much materials you’re likely to need and how much you want to spend on it. For example, it will cost you anything between £10,000 and £25,000 to build a 3.5m-wide conservatory. But in the end, you’ll be spending around £40,000 to £65,000 for an eight-foot-wide conservatory, if you go with a good builder, that’s what I’ve seen, based on my 20 years’ experience in building conservatories.

How much do you need to spend on a conservatory? Depending on the size of the conservatory, how many windows it has, and how much heating you want to put in it, you’ll need to invest around £20,000. Planning the extension Depending on what type of windows you have and the size, you will need to choose the window types you’d like.


Building a new conservatory might seem like a daunting prospect to some people, but it really is an incredibly simple process. Planning is the key to saving yourself a lot of money and many of the tips in this article will help you to save yourself from some of the most common mistakes people make when building a new conservatory.

Find top rated & vetted tradespeople

Get competitive quotes emailed to you today

You may also like

Other Guides