Lean-to Conservatories

Manufactured in our Bristol & South West family-owned factory

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Lean-to Conservatories

  • 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.

    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 on lean-to conservatories can vary in size: a shallow pitch works well with bungalows, whereas a steep pitch is great for a terraced house.

    Conservatories add light and space to a home, offering a bright space which is perfect for entertaining guests in, 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.

    Our lean-to conservatories are an ideal option if you want to convert some spare space into an extra room as they are used where there are adjoining walls.

    The addition of an extra living space is sure to have endless benefits and uses, and if you’re a bit of a foliage fan, they’re ideal for growing plants due to the amount of sunlight they let in.

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    Lifetime Guarantee
    10-year manufacturer’s guarantee.

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    Tailor Made
    Classic windows tailor made to your exact specifications.

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    Secured by Design
    Covered by the Official Police Security Initiative.

  • The Lean-to conservatory is the simplest style of conservatory, with clean lines that give it a contemporary look that make them a popular conservatory for modern houses. The simple shape gives you the maximum space in a highly economical style.

    Whether your lean-to conservatory is traditional or contemporary, the style is perfect for properties that have restricted space under the eaves, like a bungalow, or have an area that’s too awkward to accommodate a conservatory. This is because the pitch of the roof on lean to conservatories can vary, so a shallow pitch can fit under a low bungalow roof and a steeper one would be ideal for a terraced house.

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    Flexible monthly payments

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    Interest free credit

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If you think lean-to conservatories are right for your home, then we’re more than happy to help you find out more about them. Find your nearest showroom for no obligation quote and some friendly local advice.


Call us on: 01275 878153

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Do you need foundations for a lean to conservatory?

Even though a lean-to conservatory uses one of your property’s structural walls, it will still need foundations. This is to ensure that the conservatory is sturdy and stable and will last for many years. The depth of the foundations will vary depending on the type of soil that you are planning to have your conservatory installed on. Before finalising your lean-to conservatory designs, we will send a surveyor to your home who will test the soil to check what kind of groundwork and footings will be necessary to create a sturdy base for your conservatory.

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. You can also choose between having a glass roof for your lean-to conservatory to capitalise on the natural light, or invest in a tiled roof, which will help insulate the space and make it into a great space in your home all year round. If you don’t have the space for a full conservatory, then a lean-to is a great alternative.

What's the difference between a lean-to and a conservatory?

There are many similarities between a standard conservatory and a lean-to option. They both use large amounts of glass to increase the amount of natural light and warmth from the sun. However, a standard conservatory is normally much larger and can have more ornate detailing and pitched roofs, like our Victorian or Edwardian conservatories. A lean-to is more likely to have a gently sloping or very high pitched roof; they also tend to take up less space, and not extend far from your property’s external wall. If you’re not sure which type of conservatory would fit best with your property, then visit your closest showroom to see the difference for yourself.

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. A lean-to conservatory can vary the pitch of its roof depending on the type of property you have – a shallow one for a low bungalow roof, or a steeper pitch for a terraced house. The classic clean lines of a lean-to conservatory also make them a great option for modern homes who want a little extra space without taking up too much of their garden.

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We have various low cost finance options available. Get a quick quote and apply for finance at the same time.

Features and benefits

Guarantees you can depend on.

We have built up a great reputation over years of delivering a first class service and excellent products, all from our local, no nonsense all-about-you company.

From characteristic country cottages to contemporary town houses, we’re confident that our products will offer a style and finish to truly transform your home. Through constant innovation the quality, durability and security of our products is genuinely second to none. As a local company we are proud to offer British Standards BS7412/PAS24 for enhanced security.

We refuse to compromise on quality

Our windows are made from British Made, high quality MarinespecTM components, with up to 25 years anti corrosion. They are built specifically for the more exposed areas of corrosion, such as coastal environments to give you worry free performance beyond your guarantee.  We believe spending more on components is worth every penny, and sets us apart from our competitors.

State of the art fabrication for best quality

We have invested millions of pounds into one of the most state of the art manufacturing facilities in the UK.  This enables us to provide you with consistently high quality products at exceptionally good prices. Our loyal factory workers are well trained and take pride in their work, they really care about quality.  Our machines are maintained according to a rigorous servicing regime to keep them in top condition.

Superior energy efficiency

Our ‘A’ rated energy efficient and triple glazed windows are tested by the BFRC, which will save you money on your heating bills. By law your windows and doors have to meet strict thermal performance regulations but you can be rest assured that our products exceed current requirements.

Energy saving is incredibly important and so is keeping your fuel bills down. We are continuously looking for ways to make our homes energy efficient and one way is to choose new PVCu windows and doors. Not only will they help to keep your home warmer, they will reduce your energy loss.

Don’t just take our word for it!

Our suppliers conform to strictly controlled and independently monitored Quality Management Systems such as ISO 9001, to ensure that everything is done correctly and according to best practise.

Our windows are tested independently by British Standards for security, weather tightness and strength performance. This means that periodically, we have to send them to independent test houses, in order to be tested to destruction.

These are just some of the many standards the products in our vast range conform to. Needless to say we take the quality of our products very seriously indeed.


Made to measure

The styles available are endless and the choices to suit your home are bigger than ever before. Traditional, contemporary or modern; our versatile window and door designs will create the look you want to complement and enhance your home. If you want windows that are as individual as you, our range of coloured and woodgrain windows offer you fifteen different colours and finishes.

A local business that really cares about its customers

Our sales consultants, surveyors, admin team and installers really care about you and your home. They are highly trained, motivated and want to go the extra mile to do the best possible job. Our fitters will treat your home with care and respect and will take time to ensure that you are delighted with the end result.

With a local showroom including an extensive display and experts on hand you can see before you buy and meet the team!

An effortless purchase process

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Tim Greenslade
Tim Greenslade
Every person was polite and professional, helpful and personable. The process was simple and clearly explained each step of the way. It is rare to get such good service, not to mention the quality of the products. I am very pleased with the windows, the fitting, the price and the experience as a whole. I would happily recommend Britannia Windows.
From the salesman to the office staff and fitters, everyone was thoroughly pleasant and helpful so an excellent experience all around. I'm very pleased with the windows too, they look great. Would recommend without hesitation.
Meg Welch
Meg Welch
Great job of our new front door. They couldn’t have been more helpful and even fitted earlier originally planned. Also gave great aftercare advice and at a very reasonable price! Would 100% recommend.