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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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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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.

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.

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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.

Read our reviews

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 really pleased with my doors and the way the men conducted themselves; they are a credit to Alpine – thanks again.

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 advising. The fitting team worked so hard to make sure everything was perfect, and nothing was too much trouble. We are so happy with Alpine. The results really speak for themselves, and we would not hesitate to recommend them to anyone!

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 requirements, we ended up with 6 sash windows and a new composite door all in a non standard colour, which was no problem. from placing the order to the completion of the installation nice and smooth, 5 weeks time frame, fitted perfectly with our project, would highly recommend

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 up on time and finished to an exceptional standard (I am a perfectionist!) left my home clean and tidy and removed all old frames and doors. Couldn’t fault them at any stage and would highly recommend them. I would give more than 5* if I could.

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 of Aluminium bi folds and French doors with UPVC windows. I cannot fault the quality. Very happy to recommend for both domestic and commercial projects.

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