Bespoke Conservatories
Designed Around You, Built to Last
Individually designed conservatories in timber, aluminium and premium UPVC. With New Generation Glass to help manage heat, light and comfort throughout the year.
Call us anytime on 01243 538999 – David our digital assistant will take a few details so the right specialist can follow up personally.
What Makes a Room Outside Conservatory Different?
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. Most conservatories have at least 75% glazed roof area and 50% glazed walls — creating a room that feels open, bright and distinctly different from a standard brick extension.
What sets a Room Outside conservatory apart is the detail. Every project is individually designed around your home’s architecture, your living requirements and your budget. We work in timber, aluminium and premium UPVC, and offer our New Generation Glass — an advanced glazing system designed to help block up to 80% of solar heat while maintaining natural light levels. In practice, this can significantly reduce the need for blinds in summer and help retain warmth during colder months.
We have been designing and installing conservatories across the South of England since 1973. That experience shapes every aspect of a project, from understanding local planning requirements to recommending the right material for your property type.
Key Benefits
Custom Conservatory Styles: Timber, uPVC, Aluminium & Glass
Four things we do differently that premium homeowners consistently value.
Individual Design, Not Templates
Every conservatory starts with a home visit and a blank sheet. We design around your architecture, your proportions and how you actually want to use the space — not from a catalogue of standard sizes.
New Generation Glass
Our advanced glazing option is designed to help block up to 80% of solar heat while maintaining natural light. The practical benefit is a conservatory that can stay noticeably more comfortable in summer — often reducing the need for blinds — and helps retain more warmth during the colder months.
Insured Guarantees
Depending on product and location, we offer up to a 10-year structural guarantee backed by independent UK insurers. Product-specific warranties cover glazing, roofing and mechanical components separately.
Planning and Building Expertise
We handle Permitted Development assessments, planning applications where required, and building regulations submissions. Over 50 years of project experience across the South East means we understand what local authorities expect.
Conservatory Projects & Inspiration
Recent projects across Sussex, Surrey, Hampshire and Kent. Click any image to view full size.
Which Conservatory Style Suits Your Home?
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.
Victorian Conservatory
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. Works particularly well on Victorian, Edwardian and older cottage-style properties where detailing matters.
- Multi-faceted bay front with decorative cresting
- Suits period homes, townhouses and character properties
- Ideal as a sitting room, reading room or entertaining space
Edwardian Conservatory
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 — something that is harder with curved bay designs. The clean lines suit a broad range of property styles, from 1900s terraces through to newer builds. If your main goal is a family room or a dining room extension, this is often the strongest starting point.
- Rectangular layout for easy furniture placement
- Versatile — suits most property ages and styles
- Particularly effective as a kitchen-diner or family living space
Lean-To Conservatory
The right choice when height is restricted. If you have a bungalow, a single-storey rear extension, or a property where the eaves are low, a lean-to design works within these constraints without compromising on light or space. The simple pitched roof also suits homeowners who prefer a clean, contemporary look rather than a traditional conservatory profile.
- Low-profile roof — ideal where height is limited
- Clean, contemporary aesthetic
- Suits bungalows, height-restricted plots and modern homes
P-Shape Conservatory
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 a garden room that adjoins a home office. This design requires a reasonably wide rear elevation and suits larger detached or semi-detached homes where a standard single-space conservatory would feel undersized for the property.
- Creates two distinct zones in one extension
- Needs a wider rear elevation to work well
- Suits larger homes where a single room would feel too modest
T-Shape Conservatory
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, with light entering from multiple directions. Typically chosen for substantial detached homes, country properties or period houses where a smaller conservatory would look out of proportion.
- Central projection for visual impact and multi-aspect light
- Proportionally suited to larger, substantial properties
- Often used as a grand living space or garden entertaining room
Timber, Aluminium or Premium UPVC?
The material you choose affects how your conservatory looks, how it performs, and what maintenance it will need over the years. Here is an honest comparison to help you choose the right option for your project.
Hardwood Timber
Timber is the natural choice for homeowners who want warmth, depth and craftsmanship. It suits period properties particularly well — Georgian, Victorian, Edwardian and country homes — where the conservatory needs to look and feel like a considered part of the original architecture, not a modern addition.
We use oak, sapele and accoya, each selected for structural stability and long-term durability. U‑values as low as 1.2 W/m²K are achievable with double glazing. Timber can be stained, painted or left natural. It does require periodic repainting or re-oiling (typically every 5–8 years), but well‑maintained hardwood can last 50 years or more.
Aluminium
Aluminium frames are the slimmest available, which means more glass area and cleaner sightlines. This makes aluminium the natural fit for modern, contemporary or minimalist properties where you want the structure to feel light and the views to dominate.
Its inherent strength also means aluminium can span larger openings with thinner profiles than timber or UPVC — useful where you want floor‑to‑ceiling panels or wide sliding doors. Thermally broken profiles achieve U‑values around 1.4 W/m²K. Aluminium is virtually maintenance‑free, extremely durable, and available in a wide range of powder‑coated RAL colours. Lifespan is typically 45+ years.
Premium UPVC
Modern premium UPVC has advanced well beyond the basic white frames of the 1990s. Today’s profiles offer strong thermal efficiency (U‑values as low as 1.2 W/m²K with advanced glazing), consistent colour retention, and a range of finishes including convincing woodgrain effects and flush sash designs that sit comfortably on both traditional and modern properties.
The defining advantage is effectively zero maintenance — no repainting, no oiling, no special treatment. Premium UPVC delivers excellent performance and long‑term ease of ownership. Expected lifespan is 25–35 years.
New Generation Glass: The year‑round comfort option
All our conservatories can be specified with New Generation Glass — an advanced glazing system that blocks up to 80% of solar heat gain while maintaining high light transmission. The result is a conservatory that stays noticeably cooler in summer and warmer in winter, often eliminating the need for blinds. It also provides meaningful noise reduction compared to standard glazing.
Not sure which material suits your property? Our design consultants can advise during a free home visit — there is no obligation.
Bespoke Conservatory Cost Guide
Prices vary by size, style and material. Below are indicative ranges including design, manufacture, groundwork and installation. VAT is included.
| Size / Style | Lean‑To | Edwardian | Victorian | P‑Shape | T‑Shape |
|---|---|---|---|---|---|
| Small (3m × 3m / 9m²) | £25,000 – £30,000 | £28,000 – £33,000 | £30,000 – £35,000 | — | — |
| Medium (4m × 4m / 16m²) | £32,000 – £38,000 | £35,000 – £42,000 | £38,000 – £45,000 | £45,000 – £55,000 | £50,000 – £60,000 |
| Large (5m × 5m / 25m²) | £45,000 – £55,000 | £48,000 – £58,000 | £52,000 – £62,000 | £65,000 – £80,000 | £70,000 – £85,000 |
All prices include our New Generation Glass option as standard. Upgrading to aluminium or timber typically adds 15–25% to the base UPVC price. Site‑specific factors such as access, ground conditions and planning requirements may affect the final quote.
Conservatory vs Orangery: Which is Right for You?
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 — maximum light | Solid perimeter with central glazed lantern |
| Thermal | A+ rated with New Generation Glass option | A++ rated — enhanced insulation |
| Price from | £25,000 | £35,000 |
| Build time | 8–12 weeks | 10–14 weeks |
| Feel | Light, open, garden-connected | More architectural, part of the house |
| Best for | Maximum light and garden views | Warmth, solidity and a built-in feel |
Not sure? Our design consultants can recommend the best option during a free home visit. Learn more about our orangeries →
Conservatory vs Modular Extension
A modular extension offers a different approach to adding space. Here is how they compare on the things that matter most to homeowners.
| Feature | Conservatory | Modular Extension |
|---|---|---|
| Build method | Glazed frame on prepared base | Factory-built panels assembled on site |
| Natural light | Maximum — glass roof and walls | Limited to windows and rooflights |
| Garden feel | Strong — open, light-filled | More like a conventional room |
| Thermal | A+ rated with New Generation Glass option | Varies by specification |
| Planning | Often Permitted Development | May require full application |
| Price from | £25,000 | £30,000–£50,000+ |
| Build time | 8–12 weeks | 6–10 weeks (excl. groundworks) |
| Best for | Light, views and garden living | A solid room like a bedroom or office |
Both options add valuable living space — the right choice depends on how you want the room to feel. Our design team can talk you through the trade-offs during a free home visit. Book a free consultation →
Not sure which style or material is right for your home?
Book a free home consultation. We will visit, take measurements, and show you exactly what is possible — with no obligation.
How a Project Works
From first conversation to finished conservatory, here is what to expect at each stage.
Free Home Design Visit
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.
Bespoke Design
We produce detailed design drawings tailored to your home’s architecture, your preferences and your budget. You will see exactly what the finished conservatory will look like before committing to anything.
Build and Installation
Your conservatory is built using the specified premium materials, then professionally installed on site. We manage the full project from groundworks and base construction through to glazing and finishing.
Handover and Aftercare
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.
What Our Customers Say
Independently verified reviews from Google. These are real homeowners sharing their experience of working with Room Outside — unedited and in their own words.
“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, both of whom worked extremely hard throughout and were very polite and pleasant to have around. 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 which it is now a great pleasure to spend time in.”
Angeline Hudson
25-year-old conservatory renovation · 5-star Google Review
“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. His design capability is outstanding, and he came up with ideas and solutions that we would never have thought of ourselves. 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. For anyone considering an orangery, conservatory or glass extension — don’t hesitate. Great to find a company you can truly trust, with decades of experience and a proven record of creating stunning spaces.”
Matt Popham
Bespoke glass extension with New Generation Glass · 5-star Google Review
“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. I can’t recommend this company highly enough. They truly understand how to balance heritage aesthetics with modern functionality.”
Patricia Marples
Bespoke conservatory, Victorian home, West London · 5-star Google Review
Conservatory FAQs
Straightforward answers to the questions we are asked most often by homeowners considering a conservatory project.
A bespoke conservatory from Room Outside typically costs from £25,000 to £60,000+, depending on size, style, materials and site requirements. Lean-to and Edwardian designs generally start at the lower end, while P-shape and T-shape configurations sit toward the higher end. We provide a detailed quotation after a free home visit, so you can see exactly what your project will cost before making any commitment.
Most conservatories fall under Permitted Development Rights and do not require a formal planning application, provided they meet criteria around size, height and proximity to boundaries. However, rules are different for conservation areas, listed buildings and certain other designations. We check this during the initial home visit and manage any applications that are needed.
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. The practical benefit is a conservatory that can stay noticeably more comfortable in summer — often reducing the need for blinds — and helps retain more warmth during the colder months. It can also provide meaningful noise reduction compared to standard conservatory glass. We offer New Generation Glass as an option across our full range of conservatories.
A typical project takes 8 to 12 weeks from confirmed order to completion, covering manufacturing, groundworks, frame installation, glazing and finishing. More complex designs or projects that require planning approval may take longer. We set out a clear timeline at the quotation stage so you know exactly what to expect.
It depends on what matters most to you. Conservatories offer maximum natural light through their fully glazed roofs and a strong visual connection with the garden. Orangeries have a solid perimeter roof with a central lantern, which provides better thermal performance and a more built-in architectural feel — but typically costs 20–40% more. Our design team can talk through the differences during a home visit and recommend the right option for your property. See our orangeries →
Depending on product and location, we offer up to a 10-year structural guarantee backed by independent UK insurers, alongside separate product-specific warranties covering glazing, roofing and mechanical components. The exact guarantee terms are confirmed in your quotation before you commit to anything.
With modern double‑glazing and New Generation Glass, our conservatories achieve U‑values as low as 1.2 W/m²K for the roof and 1.4 W/m²K for walls — far exceeding older single‑glazed structures. This means they can be used comfortably year‑round with minimal additional heating. Many customers report that their conservatory becomes the warmest room in the house during winter when the sun is shining.
Timber conservatories, when properly maintained, can last 50+ years; aluminium structures 45+ years; and premium UPVC 25–35 years. Our 10‑year structural guarantee covers the frame and installation, and we provide maintenance guidance to help you maximise the lifespan of your conservatory. Regular cleaning and occasional checks of seals and moving parts are all that is usually required.
Ready to Start Your Project?
Whether you are still exploring ideas or ready to move forward, we have the right next step for you.
Prefer to talk? Call us on 01243 538999 — David our digital assistant will take a few details so the right specialist can follow up personally.
Page reviewed March 2026 · Room Outside Ltd · Est. 1973
