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Lean-to Conservatories

Lean-to Conservatories

Perfect for when space is at a premium, our lean-to conservatories are a thermally efficient, high quality choice. Our conservatories are manufactured in our Clevedon based factory, and we have showrooms across Bristol, Clevedon and across the South East and South West. Start your lean-to conservatory quote today!

Made to Measure Lean-to Conservatories

Get Your Designs

High quality and with a sleek, elegant design, our lean-to conservatories are the perfect option for those who have height restrictions around their home. These extension spaces allow you to enlarge the profile of your home and make the most of all available space. You’ll have an additional versatile area that you can use for virtually any purpose.

Ideal for those who live in bungalows or who have a space which doesn’t quite accommodate the size of a conservatory, lean-to conservatories are a great way to add some extra living space. This is because the pitch of the roof can vary in size. A shallow pitch works well with bungalows, whereas a steep pitch is great for a terraced house.

Customisation Options

Harvest Brown

Carbon Grey

Terra Brick

Get 3 FREE designs in 2 simple steps.

Find the perfect living space for your home with our user-friendly conservatory contact form. No matter what design you’re looking for, you can find the ideal designs for your home with our services.
Step 1

Select Your Favourite Designs

Select your favourite designs, send us a photo of the back of your home, and we’ll send you three personalised living spaces superimposed onto the pictures you send us.
Step 2

Choose Contact Method

We offer a variety of ways to get in touch with us for our living space designing services. Whether you prefer to message, email or call, you can choose the right method for you below.
Chat On WhatsApp
Request Callback
Submit Enquiry
Step 3

Enter Your Details

As you’ve selected to request a call or email, we’ll need some additional information from you to start the design process.
Final Step

Thank You! We’ll Be In Touch Shortly

Thank you for submitting your request. We look forward to working on your dream living space project with you.

What Happens Next?

Picking your favourite designs is just the start of your dream living space. Now that we’ve received your contact request and favourite designs, we’ll be in touch to assist you with our superimposed images. We look forward to hearing from you!

Why Choose Us?

Since 1982, we’ve developed a knack for high-quality work, with even higher quality customer service, so you’ll never need to worry when you’re with Britannia.

See Our Before & After

Want to see how we can transform your old conservatory? View our before and after photos here!
ISO 9001
Made in Britain
National Warranties
Sabik Marine

Available Online, In-Store or At Home

Experience the freedom of obtaining the products you desire, tailored to your preferences. Our dedicated team is always available to assist you whenever you require assistance. Your satisfaction is our priority.


Request a quote, use our digital designer or schedule a free one-to-one session with a design expert

Get a free online quote

In Store

Visit your local showroom to explore our stunning product range and see for yourself.

Book a Showroom visit

At Home

Have our friendly design expert over to discuss your project, advise and take measurements for an on-the-spot quote.

Book a home visit


You don’t have to just take our word for the quality of our lean-to conservatories. We also have a range of accreditation that showcases our dedication to producing the very best spaces. With Certass approval and Secured by Design status, you’ll enjoy a fantastic product.

Hassle Free Installation

Upgrading your home with a lean-to conservatory could make a huge difference to your living space. Our expert team of fitters have been specifically trained to offer a smooth and efficient installation. Enjoy a tidy, professional and hassle free experience.

Made in the UK

Britannia are very proud of the fact that we manufacture all of our lean-to conservatories right here in the UK. This is all done in our Clevedon based factory. This helps us to ensure that our conservatories are built to the highest possible standards.

10 Year Guarantee

When investing in a new lean-to conservatory, you want to ensure that it’ll last the test of time. Thankfully, this isn’t a concern with our range of products. All of our installations come with a ten year guarantee, ensuring a decade of hassle free use.


Here in the UK, our weather runs the full range from calm and peaceful to stormy and unpredictable. With your new lean-to conservatory, it won't matter. Fully weatherproof and thoroughly tested, you'll have complete confidence in your purchase.

Minimal Upkeep

You won’t have to spend hours maintaining your new lean-to conservatory. Made from modern uPVC materials, you’ll be able to keep your conservatory clean with as little as a simple wipe from a cloth. Say goodbye to any excess stress and hassle in your home.

Add Natural Light to Your Home

Conservatories add light and space to a home, offering a bright space which is perfect for entertaining guests, especially in the summertime. Our lean-to conservatories take on the purist; less is more approach perfect for those who want something simple to let the light in. With this induction of natural light into the home, you could make your living space seem even larger than it really is.

They’re also an incredibly versatile space for you to use. Providing more space for your property, you’ll be able to use your lean-to conservatory for practically any purpose. Whether you’re looking for a new home office, home gym or even a dining room, you’ll have the area that you need.

Thermally Efficient Lean-to Conservatories

Now more than ever, thermal efficiency is a major consideration for homeowners looking to improve and extend their homes. With prices rising all the time, it’s one of the most important things to look out for when considering a new space. If you have an existing conservatory that isn’t energy efficient, it could be causing a strain on your home’s finances.

Our Ultraframe supplied lean-to conservatories are built to offer building regulation compliant thermal efficiency. Made from uPVC materials and using the latest double glazing, they trap heat within the space to ensure a cosy environment. The result? A space that you can use all year round no matter the temperature or weather outside.

Frequently Asked Questions

Why choose a lean-to conservatory?

A lean-to conservatory is a great option for properties that have restricted outdoor space, as they can extend just a small amount away from your home while still bringing in all that natural light and warmth.

What is a lean-to conservatory?

A lean-to conservatory is one of the simplest conservatory designs we offer. Often called sunrooms, this type of conservatory consists of three glass walls coming out from one of the main walls of your property and are often smaller than a traditional conservatory.

Do you have a showroom?

Come and visit us at any of our showrooms in Bristol, Clevedon and across the South East and South West.

What Our Customers Say

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