Explore the technical detail

Browse the tabs below for full specifications on our lean-to conservatories, including frame colours, glazing options, security hardware and downloadable brochures for your project files.

How we build our lean-to conservatories

Our lean-to conservatories are manufactured at our Morley facility using Eurocell uPVC profiles, paired with either a glass or Solar Frame warm roof system where specified. The straightforward design suits bungalows, terraces and properties with awkward spaces or limited eaves height.

We supply fully fabricated frames to trade partners across Leeds, Bradford, Huddersfield and wider Yorkshire, with installation available for homeowners. Each unit is built to order, with bespoke sizing, glazing and colour combinations to suit the architectural style of the host property.

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A versatile choice for tight spots

The single-pitch roof and straightforward design make the lean-to ideal for bungalows, low eaves and awkward spaces where a pitched roof won't fit.

Eurocell profiles as standard

We use Eurocell uPVC profiles throughout, offering durability, low maintenance and a wide range of colour finishes for the trade.

Affordability without compromise

Fewer materials and a straightforward design make the lean-to a popular choice for homeowners on a tight budget seeking additional space.

Energy efficiency built in

Double glazing and warm roof options reduce heat loss and energy costs, keeping the living area usable all year round.

Lean-to conservatory specifications

Here are specifications we are regularly asked for by clients, but if you require any additional information please don't hesitate to get in touch.

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SpecificationDetail
Frame materialuPVC (Eurocell profiles)
Roof optionsGlass or solid roofs
GlazingDouble glazing as standard, sourced from Martindale's & Glasscraft
U-valuesFrom 1.2 W/m²K (glazing); warm roof systems from around 0.18 W/m²K
Frame coloursWhite, cream, black, grey, Irish oak, rosewood and more. Dual colours available.
LockingSecure by Design multi-point locking
Door barrelsThree-star anti-snap cylinders
Popular usesGarden room, playroom, new dining area, sunroom are all popular picks.
Best suited toBungalows, properties with limited eaves height
Lead timeTypically within 2 weeks

Glazing and security specification

We source our glass from Martindale's in Blackburn and Glasscraft in Leeds, with their large, bespoke glass panels maximising natural light. Integral blinds are available through Nortam. All doors are fitted with Secure by Design multi-point locks and three-star anti-snap door barrels for peace of mind.

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White lean-to conservatory with french doors opening onto a wooden deck attached to a brick house.

Frame colour options

Eurocell frames are really customisable, so it’s easy to find something that fits your home. Some of the most popular options with our clients include white, cream, black, grey, Irish oak and rosewood, with dual colour finishes available meaning you can have different options inside and out.

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Irish Oak

Irish Oak

EUROCELL agate grey

EUROCELL agate grey

EUROCELL Chartwell gren

EUROCELL Chartwell gren

EUROCELL anthracite grey

EUROCELL anthracite grey

EUROCELL black ash

EUROCELL black ash

EUROCELL golden oak

EUROCELL golden oak

EUROCELL white ash

EUROCELL white ash

EUROCELL dark red

EUROCELL dark red

EUROCELL steel blue

EUROCELL steel blue

RAL option

RAL option

Brochures and technical downloads

Download our conservatory brochure for full technical detail, frame specifications, glazing options and finishes. Ideal for sharing with clients or referencing during quoting and project planning.

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Affordable conservatories with clean lines

A lean-to is a popular choice for homeowners wanting additional space without the cost or footprint of a larger build. With clean lines and a simple single-pitch conservatory roof, it suits both modern and traditional properties.

Built using Eurocell uPVC frames and high-performance double glazing, our lean-tos work well as a garden room, playroom or new dining area. The straightforward design also helps keep conservatory prices competitive for your customers.

  • Exterior view of a white lean-to conservatory attached to the rear of a yellow brick house with a green lawn.
  • Interior view of a large white glass conservatory filled with natural light, tiled flooring, and wicker dining and seating furniture.
  • Close-up exterior of a white uPVC conservatory structure showing double glass doors, side windows, and white guttering.
  • Cream-colored conservatory with decorative brass door handles and a stone wall base set on a patio with potted flowers.
  • White uPVC lean-to conservatory with a low brick wall base attached to the rear of a red brick two-story house.

Why trade partners choose Alpine

We’ve manufactured windows, doors and conservatories from our Morley site for over 20 years. Between Peter and Richard, we hold more than 80 years of combined industry experience, supporting smaller window companies and general builders across Yorkshire.

Our range of windows, doors, conservatories and orangeries is backed by same-day responses to trade enquiries, 24-hour quote turnaround and typical delivery within two weeks. We’re a family-run business built on quality, trust and consistency.

Lean-to conservatory FAQs

Common questions from trade partners and homeowners about our lean-to conservatories, covering specifications, lead times and suitability for different property types across Leeds and Yorkshire.

How we work with the trade

Our Process

Initial quote

Send us your sizes online or over the phone. We turn most trade quotes around within 24 hours, and there is no obligation to proceed.

Conversation

We talk through the priorities for you or your client, be it design, thermal performance, security, colour finish, glazing, or locking.

Manufacturing

We manufacture in-house at our Morley facility using Eurocell uPVC profiles, DoorCo composite slabs and Alunet aluminium systems. Typical lead time is two weeks.

Bespoke build, testing and supply

Every frame is made to your exact sizes and quality-checked before despatch. Supply only as standard, full installation available on request.

What fellow trade professionals say about us

Honest feedback from the installers, builders and double glazing companies we supply day in, day out.

"Had both front and back stable doors fitted recently, and I have to say the men that came to fit them were really good, pleasant, efficient and did a great job! I am rea...

Carol Marshall

Google
"I can’t thank the team at Alpine enough for all of the hard work on your build. They were great from the start, being really helpful through the quote process and in adv...

Kate Oakes

Trustpilot
"We recently renovated a small cottage and needed to consider the traditional look and feel of the property, Alpine Windows and Doors were brilliant, listening to our req...

Tom Crowe

Google
"Excellent service from start to finish. They made the process from colours to design easy, nothing was too much trouble. Lovely polite staff and fitters. Fitters turned ...

Sarah Wood

Google
"Peter at Alpine has done the windows and doors at both our offices and my home. The service was very professional, fast and competitive price wise. I had a combination o...

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SMILE Air Conditioning

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    A modern dining and living space featuring floor-to-ceiling dark frame glass doors with built-in blinds overlooking a backyard garden.