5 Things to Check Before Buying a Conservatory

A conservatory is a big buy and a lovely one, but it is easy to get carried away with the picture in the brochure and miss the practical bits. Some of the best uPVC windows, doors and conservatories fall down not on looks but on how they are planned and fitted. Before you sign anything, here are five things worth checking so you end up with a room you actually use all year.

1. Will it be comfortable in every season?

The old complaint about conservatories is that they roast in summer and freeze in winter. Modern ones are far better, but only if the glazing and roof are specified properly. Ask about the glass: energy efficient units with a solar control coating keep the heat down in July, while good sealed units and a well insulated roof hold warmth in January.

A quick comfort checklist:

• Energy efficient double glazing as standard
• Solar control or self-cleaning glass options
• A roof that suits how you want to use the room
• Trickle vents or opening windows for airflow

If the room is going to be a proper living space, it needs to feel right in a Yorkshire winter, not just on a bright spring afternoon.

2. Do you need planning permission?

Many conservatories fall under permitted development and do not need full planning permission, but not all. Size, height, how much of the garden it covers and whether you are in a conservation area all matter. York has plenty of conservation areas and period terraces where the rules are tighter.

Building Regulations can also apply depending on the design and how it connects to the house. Rules change, so check the current requirements with your local authority or ask your installer to confirm before work starts. It is far cheaper to get this right on paper than to unpick it later.

3. The base and how it is built

The part you never see matters most. A conservatory is only as good as the base it sits on. A poor foundation can lead to cracks, damp and doors that stop closing properly within a few years.

Ask how the base will be built, whether it suits your ground, and who is responsible for it. A reputable installer will treat the groundwork as seriously as the frames and glass, not as an afterthought to rush through.

4. Frames, glazing and security

The frames carry the whole room, so quality counts. uPVC is the popular choice for good reason: low maintenance, warm and hard wearing. Look at the glazing spec, the quality of the sealed units and the locking on any doors and opening windows.

Because a conservatory adds a lot of glass at ground level, security is worth a proper look. Multipoint locking on the doors, toughened or laminated glass and solid frames all help. Our conservatories and orangeries range shows how the frames and glass work together, and if you are picking windows for the rest of the house too, our uPVC windows in York use the same quality thinking.

5. The installer, the guarantee and the aftercare

A conservatory is only as good as the team that fits it. Check how long the company has been going, ask to see recent work, and read what past customers say. A tidy quote, clear timings and a proper written guarantee are all good signs.

Find out what the guarantee covers and for how long, and whether the same team handles any window and door repairs down the line. A firm that stands behind its work and comes back if something needs adjusting is worth paying a little more for.

Rough 2026 prices

Prices vary hugely with size, style, roof type and glazing, so treat these as broad 2026 guides. A modest lean-to conservatory supplied and fitted often starts somewhere around 10,000 to 15,000 pounds, while a larger Victorian or gable design with a solid or glass roof can run from around 20,000 to 35,000 pounds or more. For a figure based on your home, request a free quote and we will measure up and talk options through.

FAQs

How much does a conservatory cost in 2026?

As a rough 2026 guide, a smaller lean-to conservatory supplied and fitted often lands around 10,000 to 15,000 pounds, while larger styles with a solid or glass roof can run from around 20,000 to 35,000 pounds or more. Prices vary with size and spec, so get a quote for your home.

Do I need planning permission for a conservatory?

Many conservatories are covered by permitted development, but size, height, garden coverage and conservation areas can change that. Rules vary, so check the current requirements with your local authority or ask your installer to confirm.

Can you use a conservatory all year round?

Yes, with the right glazing and roof a modern conservatory stays comfortable through the seasons. Energy efficient glass, solar control coatings and a well insulated roof make the biggest difference.

How long does a good conservatory last?

A well built conservatory with quality frames and a proper base should last 20 years or more with minimal upkeep. The base and the fit matter as much as the frames for long term reliability.

Want to see the full range of styles, roofs and finishes? Download our latest brochure, or request a free quote and we will pop out for a look.