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Last updated: 5 December 2023

Conservatory Extension Costs: How to Save Money in 2023

Adding a conservatory extension to your home gives it a sense of increased space, but also allows more natural light into your home. One of the best things about a conservatory extension is the fact that it’s a multi-functional room, so you can be used for many things, all year round.

In the summer you can use it as an extension of your garden, and it’s the perfect place for entertaining friends and family with a few drinks after a BBQ. During the colder months of the year, it’s a great room to just chill out in, or use as a playroom for the kids when they can’t be outside.

In this guide, we look at:

  • How much a conservatory extension costs
  • What affects the cost of a conservatory extension
  • How to save money on a conservatory extension
  • What’s involved in building a conservatory extension
  • How to find a professional builder, and more

Let’s start with how much a conservatory extension costs.

How Much Does a Conservatory Extension Cost?

As you’ll see from the table below, the costs for a conservatory extension will typically range anywhere between £15,000 to £20,250, and this will depend on the style of conservatory extension you opt for.

Conservatory StyleEstimated Cost
Lean-to Conservatory with Budget Kitchen and Appliances£15,000 to £17,625
Edwardian Conservatory with Budget Kitchen and Appliances£16,500 to £20,250
Convert Existing Conservatory to Full Extension£15,000 to £20,000

There are, of course, other factors that will influence how much you pay for your conservatory extension, which we’ll be covering later in this guide.

For example, if you’d like to have a lean-to conservatory with a budget kitchen and appliances fitted, then this will cost anywhere between £15,000 to £17,625.

To have an Edwardian conservatory with a budget kitchen and appliances fitted will cost anywhere between £16,500 to £20,250.

If you’re looking to convert your existing conservatory into a full extension, and potentially a full new room like a kitchen, then this could cost anywhere between £15,000 to £20,000.

Are you ready to build your conservatory extension? HouseholdQuotes can help you find the right builder. 

Click the button below to compare quotes from multiple tradespeople near you, and potentially save money on your conservatory extension:

Comparing Quotes Could Save You Up To 40%:

What Affects the Cost of a Conservatory Extension? 

When it comes to the cost of your conservatory extension, you’ll see from the table above that the prices can be quite different depending on various things. In this following section, we’re going to be covering in more detail, the main things that affect the cost of a conservatory extension.

The Design You Choose 

The design and style of your conservatory extension is one of the biggest things that affects the cost, and some of the main styles you’ll come across when looking for conservatory ideas are listed below:


This is a classic conservatory in an ornate style that is all about maximising the view from the surrounding area. A Victorian conservatory has a faceted front, and will help add lots of natural light to your conservatory, which is great for smaller rooms.

The average price you pay for a Victorian conservatory extension will be between £6,250 to £9,750, and will depend on various things, such as the materials being used.


The Edwardian style of conservatory focuses very much on maximising space, while also allowing lots of natural light. Thanks to the rectangular shape, and elegant style, this type of conservatory is perfect for longer rooms that may not get a lot of natural light.

The average price you pay for an Edwardian conservatory extension will be between £6,500 to £9,500, and will depend on various things, such as the materials being used.


The Gable-end conservatory is one that’s equally modern and classic. Thanks to the gable front, and the spacious layout of the design, this type of conservatory is perfect for allowing lots of natural light, and creating more space.

The average price you pay for a Gable conservatory extension will be between £6,500 to £9,500, and will depend on various things, such as the materials being used.


The P-shaped conservatory is a perfect blend of the Victorian and Lean-to designs that gives it a unique appearance between modern and classic. Due to the larger design of this conservatory type, it’s better suited to bigger spaces and detached properties.

The average price you pay for a P-shaped conservatory extension will be between £7,750 to £10,500, and will depend on various things, such as the materials being used.


The lean-to conservatory type is simple yet elegant. It’s perfect for modern properties thanks to its low roof line, but also allows plenty of natural light and great views.

The average price you pay for a Lean-to conservatory extension will be between £9,00 to £14,250, and will depend on various things, such as the materials being used.

The Size of Your Extension 

The size of the conservatory extension is another big influencing factor when it comes to price. The bigger the area is, the higher the costs will be for materials, labour, and any preparation work, such as levelling that needs to be carried out.

Your Choice of Materials 

When it comes to conservatories, there are quite a few options for the different materials that can be used, and the price you pay for the overall job will be dependant on the material you choose. Below, we’ve listed a breakdown of each type of material to help you decide which one might be best for you.


This is among the more affordable options, but is still very high quality. uPVC panels are a great choice for conservatory roofs in places that have to deal with harsh weather conditions such as high winds and heavy rain, since the material is highly durable and able to withstand these conditions better than others.


This material is also a very affordable option, and although it’s durable, it’s not recommended for areas that see a lot of rainfall since the material can be prone to leaking.


Glass is definitely one of the more popular choices for a conservatory roof since it allows lots of light, helps to regulate the temperature, are durable, and look beautiful. However, glass is on the higher end of the pricing scale for conservatory roofs, and also isn’t the easiest when it comes to cleaning.

Fittings and Finishes for Your Extension 

If you want to have any fixtures and finishes added to your conservatory, then this will always have an affect on the end price you pay, and depending on the company you use, these may or may not be included in your final quote. 

Some of the fixtures and extras you might want to have added to your conservatory extension, include:


This will include things like adding new plug sockets, and potentially even wiring if needed. These types of jobs will need to be carried out by a qualified electrician, and the average costs you’ll pay for them are between £30 to £45 per hour, and around £250 to £320 per day.


Just as with any other room you use in your home, you’ll want to have some kind of lighting installed. This can be wall lights, ceiling lights, or even lamps, and the costs for these to be installed professionally can cost anywhere from £55 to £500.


Especially if your conservatory extension is going to form part of your kitchen, or you’d just like to have the option of accessing water from within your conservatory extension, then plumbing is something you’ll need to have done professionally. The average costs for a plumber can be anywhere between £40 to £80 per hour, and between £160 to £300 per day.


Your conservatory will be a room you spend quite a bit of time in, so just like any other room in your house, you’ll want to feel comfortable when using it, and the floor you use plays a big part in that. 

If you want to hire a professional to lay the floor in your conservatory, then the average costs you can expect will be anywhere between £50 to £700, and will very much depend on the type of flooring your going to be laying.

Kitchen Units

For many people, a conservatory will form part of their kitchen, or at least be an extension of it, so whether you’re looking to have it be part of your kitchen, or would just like the option to have extra storage, then having kitchen units installed is something to consider.

The average cost to have this done will vary anywhere between £900 to £10,000, depending on various things like the kinds of units you want, as well as the size.

Your Location

Another thing that will generally affect how much you pay for certain professional services is where you live in the country. If you live in a larger city like London, Edinburgh, or even Birmingham, then you’ll find that a lot of things just cost a bit more due to living costs being higher in general.

How Can I Save Money on a Conservatory Extension?

Comparing quotes is a great way to potentially reduce the cost of a conservatory extension. HouseholdQuotes can help you get quotes from multiple builders near you, so that you can find one that suits your budget. 

Click the button below to get started: 

Comparing Quotes Could Save You Up To 40%:

Conservatory extensions are an investment since they involve structural and building work, as well as any extras you choose to add like lighting, plumbing, and decoration. One of the best ways to save on costs is by setting a budget and sticking to it.

Another great way to save money on this project is to make sure you choose a more affordable extension design type. For example, a Victorian style may work out cheaper than a Gable or P-shaped conservatory design.

You should also keep an eye on sales, especially for additional features such as lighting or décor.

Is a Conservatory Extension the Right Choice for My Home? 

While a conservatory extension is a popular choice for adding new space to your home, it’s not the right option for everyone, so here are some of the main pros and cons of adding a conservatory extension to help you decide if it’s the right fit for you.

They’re the ideal way to add more space to your home

They don’t need complicated planning permission

They can increase the value of your home

They can add charm and character
They’re the ideal way to add more space to your home

They don’t need complicated planning permission

They can increase the value of your home

They can add charm and character
Depending on the roof material, they can be difficult to clean

The temperature can be difficult to regulate

They can be expensive to build and maintain

Choosing the wrong type is quite easy

As you can see, there are lots of advantages and disadvantages to having a conservatory extension built, so it really comes down to what things are important to you.

For example, if you’re looking to add more space to your home without having to move or get planning permission for an extension, then a conservatory is a great option. A conservatory looks beautiful since it adds charm and character that can increase the value of your home, so these are points worth considering.

On the other hand, it’s worth considering that the type of roof you choose for your conservatory can make it very difficult to keep clean, which can quickly affect the appearance. Conservatories are also quite expensive to build, and if you choose the wrong type, you might find that it’s difficult to keep the temperature at a consistent level.

What’s Involved in a Building a Conservatory Extension?

Once you’ve compared your quotes and have found a reputable building company to carry out the work, they will make an appointment to come over and start the work on preparing the foundations for your conservatory. 

Often this will involve digging into the ground and levelling it for the surface and structural foundations to be applied. When the foundations have been prepared and the initial base foundations have been laid, the concrete will be left to dry.

Once the concrete foundation is dry, the building of the actual conservatory frame will begin. With the main structure in place, the glass for around the conservatory will be installed, and the roof will be added at the end.

From here, everything will be sealed and secured against the elements, and things like doors will be added.

If you’re having any extras added, such as plumbing or kitchen units, these will usually be installed separately, and only after everything else is in place.

How Do I Find and Hire a Professional Builder? 

Finding the right conservatory builder can be challenging. At HouseholdQuotes, we can connect you tobuilders in your area. 

Click the button below to tell us more about your extension plans, and we’ll help you find someone quickly and easily:

Comparing Quotes Could Save You Up To 40%:

Another great way to find a professional builder or building company in your area is to seek recommendations from family, friends, neighbours, or work colleagues.

Ensuring the Professional Is the Right Fit

When hiring someone to carry out any kind of work on your house, it’s always crucial to make sure that they’re the best fit for what you need.

Regardless of how good their reputation is, they might not have everything you need in terms of services, or offer quotes in line with your budget, so in this section we’re going to be sharing our top recommendations for how to go about ensuring the professional you hire is the right fit.

Get a Written Quote

When you’re shopping around for quotes from different tradespeople, it can be easy to lose track of the items included, and more importantly, the prices discussed, so the best thing to do is make sure you get everything in writing.

This is a good practice when you’re getting quotes for anything because it helps avoid any misunderstandings around pricing and services included. It’s also better to able to go over the quotes you receive in your own time without feeling under pressure to sign up to anything.

Check Their Experience

Making sure your chosen tradesperson is qualified and experienced in what they’re offering is crucial, so don’t be afraid to ask them more about this.

You can also check out their social media pages, websites, and independent review platforms to see what people are saying about them as this gives a good indication as to how experienced they are.

Ask for References

References and testimonials from past customers are a great way to understand more about who you’re working with, and whether or not they’re the right fit for you.

Most tradespeople will already have plenty of these on display around their website, and social media pages, but if not, then don’t be afraid to ask them. Anyone who’s avoiding this issue, or doesn’t want to provide any references for you should be avoided.

Verify They Have Insurance

Insurance is a must for any kind of renovation work you have carried out in your home, so it’s crucial that you verify a tradesperson has the right insurance before they start work so that you’re both protected in the event of anything going wrong.

Final Checklist

Although there can certainly be quite a lot of things to consider when it comes to installing conservatory roof insulation, we hope that this guide has helped to make the process less overwhelming for you.

As a reminder of the main points covered in this brief, here’s our final checklist:

The cost of having a conservatory extension built can vary anywhere between £15,000 to £20,220, and how much you pay will depend on various factors, such as the type of design you go for, the size of the conservatory, which materials you use, as well as any extras you want to have included.

If you’re looking to save money on this job, then one of the best ways is to choose a cheaper material and design for your conservatory, and also wait for deals and sales for any kinds of accessories or extras you want to have added.

When you’re hiring a building company for this kind of work, you need to make sure they’re the right fit for you, so making sure to ask plenty of questions and verify they’re experienced, can show testimonials and references from past customers, and have insurance is a good habit to get into.

Use HouseholdQuotes to find local builders and potentially save money on your conservatory extension.

Comparing Quotes Could Save You Up To 40%:

Frequently Asked Questions

Ready to expand your home with a conservatory extension? We can help! 

Click the button below to get quotes from local companies who can help you get the job done:

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Household Quotes Team
Written by Household Quotes Team, Home Improvement Experts

For years, the Household Quotes Team has been the trusted partner for homeowners and tenants throughout the UK, ensuring they never overpay for essential home improvements. Whether it’s a malfunctioning boiler or the need for new windows, we believe that everyone should have access to affordable home maintenance. Our goal is to make it easier for you to keep your home nice without breaking the bank.