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From temperature regulation issues to roof leaks and faded frames, old conservatories are often not an ideal fit for modern living. While it may be tempting to replace or refurbish your conservatory with another, you could improve upon it by upgrading the structure into an orangery or garden room.
Why Replace Rather Than Rebuild From Scratch?
When building a new structure from scratch, most of the costs contribute to the groundworks and building works. When you already have an existing conservatory, those works are already complete. If they are still structurally sound and appropriate for a Westbury product, you can keep the original base and work from there with a new orangery or garden room.
During the conservatory replacement process, our focus goes into improving and modernising this area of the home. Normally, this is with temperature regulation, where the room is too hot in the summer and too cold in the winter. We also address deteriorating frames, replacing them to improve the overall structure.
What Can Be Replaced?
When we replace your conservatory, we design the space to house either a garden room or an orangery. These structures have different characteristics in terms of design, but require some core components.
If an organgery is selected, the doors and windows of the unit will be timber framed. These are made of an Accoya modified timber exterior with a European redwood interior, and a sapele or similar hardwood threshold. These frames are then finished with a microporous paint that only requires repainting every 12 years due to Accoya’s stable composition.
We use aluminium roof systems, which includes an automatic electric vent to let in cool air. With an orangery, a flat roof section is introduced to accommodate the roof lantern.
The structure will feature modern double glazing to suit new building standards. We also offer solar-reflective glass and insulated glass options as available upgrades. These will directly address the temperature regulation issues, ensuring your new extension can be used year-round.
With a complete conservatory replacement, everything above-ground is replaced to create a modern orangery or garden room.
Materials and Glazing: What to Expect
As previously mentioned, we use timber in all our structures for longevity and low maintenance. The reason we source this sustainable timber for our windows and doors is that it provides a better result compared to standard solid wood.
For the exterior, Accoya is best-suited due to its durability and natural water-resistant properties that prevent rot. European redwood’s tight grain takes paint well, resulting in a clean, consistent finish, enhancing the aesthetic of the surrounding area. The hardwood we use on our thresholds is to withstand human impact, like foot traffic, and we dedicate less than 4% to any product.
Our glazing options include standard double glazing, solar-reflective glass, and insulated glass. We offer independently tested and authorised products that save on energy. You can choose specific glazing options to target sound reduction, UV protection, and temperature regulation, which will be discussed during the design phase.
If you’re choosing to have an orangery installed, a timber roof lantern is a defining feature. This includes aluminium cladding on the outside to protect the laminated European redwood timber, preventing water ingress and rot. Aluminium is used because it does not require painting, and it is low maintenance, only requiring occasional cleaning.
Replace Your Conservatory With Westbury
When you’re ready to replace your conservatory, it’s time to start with a conversation. Every project is different and tailored to your needs, and our team can help you get started. Speak to one of our experts today to find out more about conservatory replacement.
Frequently Asked Questions
Can I replace a conservatory without removing the base?
The answer will vary depending on the age of the base. Generally, if there is no cracking, the base will be good to go again, but in others new groundworks will be needed. During a site assessment, we can determine if the base is suitable or not.
What is the difference between a conservatory replacement and an orangery conversion?
A replacement normally keeps the fully glazed roof, while an orangery conversion introduces a solid masonry element and roof lantern, creating a more insulated, year-round space. We offer both depending on your needs.
How long do replacement conservatory frames last?
Due to our use of Accoya modified timber, you receive a stable material that does not rot and has a paint cycle of 12 years on average.
Will a replacement conservatory be warmer in winter and cooler in summer?
Any replacement built will feature modern glazing options, including solar-reflective and insulated glass, significantly reducing heat gain in the summer and heat loss in winter. You can also request aluminium roof vents to be integrated to help regulate temperature.
Do I need planning permission to replace a conservatory?
In most cases, replacing a conservatory does not require planning permission in England, as it falls under permitted development. However, this may differ depending on the property type, its location, and the scope of works. You must confirm with your planning authority before work can begin.
Can conservatory replacement windows and doors be made to match the rest of the house?
Yes – our frames are made to measure and can be painted in any RAL/BS colour. We will customise these timber doors and windows to complement period and contemporary properties.

