Dual sage green uPVC lean to garden room

Lean-To Conservatories

Lean-to conservatories are a popular choice for their affordability and range of customisations. Ideal where space is at a premium, they suit both modern and period homes. Create a unique lean to with your choice of doors, windows and decorative finishes.

The reinforced, durable uPVC in our lean to conservatories make them strong and long-lasting. Opt for a glass roof to maximise light, or browse solid roof options for increased insulation. We also offer replacement roofs for your existing lean to conservatory.

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  • Cream uPVC lean to conservatory with French doors
    Cream uPVC lean-to conservatory with open French doors
  • uPVC white to lean to conservatory interior
    White uPVC lean-to conservatory interior
  • uPVC anthracite grey lean to conservatory
    uPVC anthracite grey lean-to conservatory
  • White UPVC lean to conservatory with two sets of French doors and casement windows on a modern home from Anglian Home Improvements
    White uPVC lean garden room with French doors
  • Dual anthracite grey uPVC lean to with French doors
    Dual anthracite grey uPVC lean to with French doors
  • White uPVC lean to garden room interior
    White uPVC lean to garden room interior

Lean-to conservatories are the easiest and most affordable way to add space to your home. They have a flat, slanted roof that sits at an angle between the roofline and your exterior wall. They offer great style flexibility and are a great way to make use of more awkward spaces.

Guttering Shape Options

  1. Affordable and Value for Money

    The construction and smaller size of lean-to conservatories make them an affordable way of increasing space and light in your home. A well-planned stylish lean-to helps increase home value, and combined with their affordability they make a great value-for-money investment.

  2. Slanted Roof

    The slanted roof on a lean to conservatory means more effective water run-off. This makes them easier to clean and maintain than traditional hipped conservatory roofs. This saves you money and hassle over time and potentially means the roof lasts longer.

  3. Flexible Space

    A modern lean-to conservatory is a versatile addition that can fit into even awkward spaces. Create a bright new space that connects the dining room and kitchen of your terraced home. Or add a sunny new playroom or home office off your main living room.

  4. Year-round Use

    A lean-to conservatory tends to be smaller, sometimes incorporating two of your external walls, making them better insulated for year-round use. Our solaroof glass keeps your lean to cooler in summer, while solid roof options help keep a lean-to at a comfortable temperature all year.

Dark woodgrain uPVC lean to
Dual Golden Oak PVCU Leanto with Solaroof Glass Roof


Our solaroof glass blocks more heat from the sun than conventional glass, helping keep your room cooler in hotter months. It also blocks UV rays to a minimum, protecting your furniture from fading and warping. Solaroof technology reduces glare, so you can sit and read in comfort, even in full sun.

replica tile lean to conservatory

Solid Panel or Replica Tiles

Our solid but lightweight conservatory roofs have slate-effect tiles in a choice of three colours. You can add more light with roof windows. We can also add a solid, glass or polycarbonate replacement roof to most existing conservatories.

White PVCU LeanTo with Glass Roof

Solid base

Our lean-to conservatories come with our unique conservatory base as standard. Our bases have insulation and a damp proof membrane, keeping them warm and dry throughout the year. Covered by our 10-year guarantee, you can feel confident that our bases are built to last.

Colour Options

Select from a range of colour finishes or dual colour options.

  • White Knight colour swatch from the Anglian window coloursWhite Knight
  • White Woodgrain colour swatch from the Anglian window coloursWhite Woodgrain
  • Golden Oak colour swatch from the Anglian window coloursGolden Oak
  • Dark Woodgrain colour swatch from the Anglian window coloursDark Woodgrain
  • Dual Golden Oak colour swatch from the Anglian window coloursDual Golden Oak
  • Dual Dark Woodgrain colour swatch from the Anglian window coloursDual Dark Woodgrain
  • Dual Anthracite Grey colour swatch from the Anglian window coloursDual Anthracite Grey
  • Dual Sage Green colour swatch from the Anglian window coloursDual Sage Green
  • Dual Cream colour swatch from the Anglian window coloursDual Cream
Anthracite grey lean to with sun roof
Glass Options

Pick from hundreds of designs in our huge decorative glass range

Decorative window and door glass selection from Anglian Home Improvements
Finishing touches

Choose mouldings or external cornices to add extra detailing and a contemporary finish.

Finial designs available for conservatory roofs from Anglian Home Improvements

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10-year Guarantee

A 10-year parts and labour guarantee is included in your Anglian double glazing price.

Made in Britain

Made in Britain

Our products are made from start to finish in a British factory by skilled craftspeople.

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Price Match

If you find cheaper like for like uPVC windows elsewhere, we'll match the price.

Your Questions Answered by Us

Can a lean-to conservatory have a tiled roof?

Yes, a lean-to conservatory can have a tiled roof. With an Anglian lean-to conservatory, you can choose a solid tiled roof, whether for a new conservatory or a replacement roof. Our solid tiled roofs feature replica slate-effect tiles. They are available in three different shades: Carbon Grey, Rich Harvest Brown and Deep Red Terra Brick.

How big can a lean-to conservatory be?

Anglian lean-to conservatories are always bespoke to fit the size you want them. That said, they tend to have a maximum width of 10m and maximum projection from your home of 4m.

Do I need planning permission for a lean-to conservatory?

Most of the time a lean-to will not need planning permission, because it is a smaller construction. A lean-to built at the side of a property must be narrower than the width of your home to be classed as a permitted development. You might need planning permission if it covers more than 50% of the area your home covers. You will also need permission if it is more than three metres high, extends more than 6 meters out from your home. Take a look at our full guide to conservatory planning permission for more information.

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Our Accreditations and Licenses

  • British Board of Agrement accreditation for uPVC windows from Anglian Home Improvements
    The British Board of Agrement provides certification on the quality of our products.
  • Anglian’s PVC-U Casement and Tilt & Turn windows have enhanced security performance.
  • BFRC logo
    The British Fenestration Ratings Council is the UK’s national system for rating energy efficient windows.
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    The Fenestration Self-Assessment Scheme ensures window installers comply with buildings regulations in England & Wales.
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    Look for our FSC® certified wooden window and door products on our website.
  • Glass and Glazing Federation logo
    Anglian is a leading member of the Glass and Glazing Federation (GGF).
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    PVC Industry initiative to improve manufacturing, minimise emissions and develop recycling practices
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