Timber, aluminium and premium UPVC, designed around your home
Individually designed conservatories with New Generation Glass options for improved year-round comfort, realistic budgets from £25,000 and up to a 10-year guarantee.
Call 01243 538999. David, our digital assistant, can take a few details so the right Room Outside specialist follows up personally.
A conservatory is a glazed extension with a predominantly glass roof and walls, designed to bring natural light into your home while connecting your living space with your garden. Every Room Outside project is individually designed around your home’s architecture, your lifestyle and your budget.
We work in timber, aluminium and premium UPVC, and offer New Generation Glass, an advanced glazing option designed to help manage solar heat, natural light and winter comfort. If you are comparing extension types, you can also explore our glass box extensions and orangeries.
Room Outside has been designing and installing conservatories across the South of England since 1973. That experience shapes everything from planning advice to material specification and long-term aftercare.
Four things premium homeowners consistently value: considered design, better glazing, clearer guarantees and proper planning support.
Every conservatory starts with a home visit and a blank sheet. We design around your architecture, proportions and how you want to use the space.
Designed to help block up to 80% of solar heat gain while maintaining natural light, helping your conservatory stay more comfortable across the year.
Depending on product and location, up to a 10-year structural guarantee may apply, with separate warranties for glazing, roofing and components.
We assess Permitted Development, planning applications where required and Building Regulations routes so there are fewer surprises later.
Recent projects across Sussex, Surrey, Hampshire and Kent. Use the arrows to scroll through the gallery.
The right style depends on your property, how you plan to use the space and the visual effect you want to achieve. Here is a practical guide to help you choose.
From £28,000
Choose this if your home has period character and you want the conservatory to look like it has always been part of the building. The multi-faceted bay front adds architectural presence and creates an elegant, light-filled sitting room or entertaining space.
From £25,000
The most practical choice if usable floor space is a priority. The rectangular footprint means furniture, dining tables and sofas can be placed easily against straight walls, which is harder with curved bay designs.
From £25,000
The right choice when height is restricted. If you have a bungalow, single-storey rear extension or low eaves, a lean-to design works within those constraints without compromising light or space.
From £45,000
Consider this when you want two connected but distinct living areas within a single extension, for example a kitchen-dining space that flows into a separate sitting area or garden room.
From £50,000
A design for properties where the conservatory needs to match the scale and ambition of the existing building. The central projection creates strong architectural presence from the garden.
The material you choose affects how your conservatory looks, how it performs and what maintenance it will need over the years.
Timber is the natural choice for homeowners who want warmth, depth and craftsmanship. It suits Georgian, Victorian, Edwardian and country homes where the conservatory needs to feel like a considered part of the original architecture.
We use hardwoods selected for stability and long-term durability. Timber can be stained, painted or left natural. It does need periodic repainting or re-oiling, but well-maintained hardwood can last 50 years or more.
Natural warmth and depthExcellent thermal insulationBest for period and character homesAluminium frames are slim, strong and highly durable, which means more glass area and cleaner sightlines. This makes aluminium a natural fit for modern, contemporary and minimalist homes where the views should dominate.
Its strength also helps with larger openings, wide sliding doors and floor-to-ceiling panels. Thermally broken profiles, powder-coated finishes and very low maintenance make aluminium a long-term option.
Slimmest frames, most glassVirtually zero maintenanceBest for contemporary homesModern premium UPVC has moved well beyond basic white frames. Today’s profiles offer strong thermal efficiency, reliable colour retention and refined finishes including woodgrain and flush sash options.
The defining advantage is easy ownership: no repainting, no oiling and no special treatment. It is a strong practical choice when you want good performance with minimal maintenance.
Effectively zero maintenanceStrong thermal efficiency25-35 year expected lifespanAll conservatories can be specified with New Generation Glass, an advanced glazing option designed to help block up to 80% of solar heat gain while maintaining high light transmission. The practical aim is a room that stays noticeably cooler in summer and warmer in winter, with better comfort than older conservatory glazing.
Indicative installed ranges. Final costs depend on project size, access, specification, planning and site conditions.
| Size/Style | Lean-To | Edwardian | Victorian | P-Shape | T-Shape |
|---|---|---|---|---|---|
| Small 3m x 3m | £25,000-£30,000 | £28,000-£33,000 | £30,000-£35,000 | Project-specific | Project-specific |
| Medium 4m x 4m | £32,000-£38,000 | £35,000-£42,000 | £38,000-£45,000 | £45,000-£55,000 | £50,000-£60,000 |
| Large 5m x 5m | £45,000-£55,000 | £48,000-£58,000 | £52,000-£62,000 | £65,000-£80,000 | £70,000-£85,000 |
For wider extension budgeting, see our Glass Extensions Price Guide 2026.
Both create beautiful light-filled extensions, but they suit different priorities. This comparison covers the practical differences that matter most.
| Feature | Conservatory | Orangery |
|---|---|---|
| Roof | Fully glazed for maximum light | Solid perimeter with central glazed lantern |
| Thermal performance | Strong with New Generation Glass option | Typically stronger due to more insulated roof structure |
| Price from | £25,000 | £35,000 |
| Build time | Usually 8-12 weeks | Usually 10-14 weeks |
| Feel | Light, open and garden-connected | More architectural and part of the house |
| Best for | Maximum light and garden views | Warmth, solidity and a more built-in feel |
Want the more built-in option? See our contemporary and traditional orangeries.
A modular extension offers a different way to add space. Here is how the options compare for light, garden connection and project route.
| Feature | Conservatory | Modular Extension |
|---|---|---|
| Build method | Glazed frame on prepared base | Factory-built panels assembled on site |
| Natural light | Maximum, with glass roof and walls | Limited to windows and rooflights |
| Garden feel | Strong, open and light-filled | More like a conventional room |
| Planning | Often Permitted Development, subject to criteria | May require full planning depending on scale and use |
| Price from | £25,000 | £30,000-£50,000+ |
| Best for | Light, views and garden living | A solid room such as a bedroom, study or office |
If you want the most contemporary glazed option, compare this with our Glassbox extensions.
If you are still comparing options, these internal guides help you choose the right level of light, solidity and architectural presence.
A more built-in architectural room with a solid perimeter roof and central lantern.
Explore orangeriesMinimal, contemporary glazing for maximum indoor-outdoor connection.
Explore glass boxesCompare realistic budget ranges for glass extensions, orangeries and frameless glazing.
View price guideBook a free home consultation. Or call 01243 538999 and David, our digital assistant, can take a few details so the right specialist follows up personally.
From first conversation to finished conservatory, here is what to expect.
A specialist visits your home to understand your requirements, assess the site, take measurements and discuss options. There is no obligation and no pressure – this is a genuine consultation, not a sales call.
We produce detailed design drawings tailored to your home’s architecture, your preferences and your budget. You can see exactly what the finished conservatory will look like before committing.
Your conservatory is built using the specified premium materials, then professionally installed on site. We manage the project from groundworks and base construction through to glazing and finishing.
We do not consider a project complete until you are fully satisfied. Depending on product and location, your conservatory may be covered by up to a 10-year insured guarantee, with dedicated aftercare support.
Independently verified reviews from Google. These are real homeowners sharing their experience of working with Room Outside.
“I recently moved into a house with a conservatory put up by Room Outside twenty five years ago which had never been serviced during that time and was in an extremely bad condition. It has needed a complete renovation carried out by the excellent service manager Matt and assistant Warwick. Matt was extremely knowledgeable and paid great attention to detail in all aspects of the work with the result that I am totally delighted with the appearance of the restored room – truly a five star service resulting in a beautiful room.”
“We are absolutely delighted with our experience with Room Outside and cannot recommend them highly enough. Richard Bennett guided us all through the design process with patience, professionalism and integrity. The end result is beyond what my client imagined – a beautiful, high-quality glass extension that has transformed their home and given space they can enjoy all year round.”
“We recently had a bespoke conservatory at our Victorian west London home and the results have exceeded all our expectations. From the initial consultation to the final installation, the experience was seamless and professional. The space is now the heart of our home, flooded with natural light, offering a tranquil view of the garden. They truly understand how to balance heritage aesthetics with modern functionality.”
Straightforward answers to the questions homeowners ask most often.
A bespoke conservatory from Room Outside typically costs from £25,000 to £60,000+, depending on project size, style, materials and site requirements.
Most conservatories fall under Permitted Development Rights and do not require a formal planning application, provided they meet criteria around project size, height and proximity to boundaries.
New Generation Glass is an advanced glazing system designed to help block up to 80% of solar heat gain while maintaining high levels of natural light.
A typical project takes 8 to 12 weeks from confirmed order to completion. More complex designs or projects that require planning approval may take longer.
Conservatories offer maximum natural light and garden connection. Orangeries provide a more built-in architectural feel with a solid perimeter roof and central lantern.
Depending on product and location, Room Outside offers up to a 10-year structural guarantee alongside product-specific warranties.
With modern double glazing and New Generation Glass, Room Outside conservatories can achieve U-values as low as 1.2 W/m2K for the roof and 1.4 W/m2K for walls.
Timber conservatories can last 50+ years when maintained, aluminium structures 45+ years, and premium UPVC 25-35 years.
Whether you are still exploring ideas or ready to move forward, we have the right next step for you.
Prefer to talk? Call 01243 538999. David, our digital assistant, can take a few details so the right Room Outside specialist follows up personally.