Conservatory, Orangery & Glass Extension Design
Explore All Materials • Compare Options • Design Your Perfect Room Outside
From traditional hardwood to frameless structural glass, our design hub walks you through every material choice. Compare benefits, see real projects, and find the right solution for your home—all with expert guidance and a free design visit.
One Company, Six Materials – The Right Choice for Your Home
Most conservatory companies specialise in one material, which limits your options. Room Outside offers genuine expertise across six premium materials—hardwood timber, aluminium, uPVC, structural glass, oak, and our own New Generation Glass technology. This means we recommend what actually suits your property, architecture, and lifestyle, not just what we happen to sell.
Each material brings distinct advantages in aesthetics, thermal performance, maintenance, and cost. Our design consultants help you compare them honestly, so you can make an informed decision with confidence.
Design Range
Premium Design Materials & Options
Browse our range of premium materials for inspiration and start creating your perfect Room Outside. Each material offers unique benefits for different styles and requirements.
- Bespoke design
- 6 material choices
- Free consultation
- 10-year guarantee
- Planning guidance
- New Gen Glass
Explore Your Material Options
Click through to each material range for detailed information, project examples, and specific benefits. Every design is fully bespoke.
New Generation Glass
Our exclusive temperature-controlled glass technology developed by Room Outside. Enjoy year-round comfort without blinds or air conditioning.
- Developed by Room Outside
- Year-round thermal comfort
- No blinds or air conditioning needed
- Superior U-values
Hardwood Timber
Sustainably sourced FSC-certified hardwood with natural beauty and exceptional durability. Ideal for traditional conservatories and orangeries.
- FSC Certified sustainable timber
- Natural grain and character
- 50+ year lifespan with care
- Traditional craftsmanship
Aluminium
Sleek, modern profiles with ultra-slim sightlines. Powder-coated in any RAL colour for a modern architectural finish.
- Ultra-slim sightlines
- Any RAL colour available
- Thermally broken technology
- Modern architectural styling
uPVC
Low-maintenance, energy-efficient frames with multi-chamber profiles and foil finishes that replicate timber grain.
- Maintenance-free
- A+ energy rated performance
- Woodgrain foil options
- Excellent value
Structural Glass
Frameless glass technology creating seamless indoor-outdoor connections. Floor-to-ceiling panels with minimal visible frames.
- Frameless design
- Floor-to-ceiling glass panels
- Structural glazing
- Maximum natural light
Oak
Traditional English oak framing with authentic character. Hand-crafted joinery and naturally weathering timber create buildings of lasting beauty.
- Authentic English oak
- Hand-crafted joinery
- Natural weathering
- Timeless character
Materials at a Glance
Still deciding? This simple summary helps you compare key attributes across all six materials.
| Material | Best For | Maintenance | Relative Cost | Style |
|---|---|---|---|---|
| New Generation Glass | Year-round comfort | Low | Premium | Versatile |
| Hardwood Timber | Period properties | Moderate | Premium | Traditional |
| Aluminium | Contemporary homes | Low | Premium | Modern |
| uPVC | Low maintenance | Very low | Moderate | Versatile |
| Structural Glass | Maximum light | Low | Premium | Ultra-modern |
| Oak | Character & gardens | Low | Premium | Rustic / Traditional |
See How Homeowners Mix Materials
Our design consultants help you pair the right frame material with the perfect glazing—creating unique spaces that work for your lifestyle.
Book a Free Design Visit
Not sure which material is right for you?
Book a free home design visit. We’ll assess your property, discuss your priorities, and talk you through the pros and cons of each material—with no obligation.
Call us anytime – David our digital assistant will take a few details so the right specialist can follow up personally.
How Your Design Project Works
From first conversation to finished installation, here is what to expect at each stage.
Free Home Design Visit
A specialist visits your home to discuss your vision, assess the site, and talk through material options. No pressure, no obligation.
Bespoke Design & Quotation
We produce detailed drawings tailored to your property and preferences. You see exactly what the finished design will look like.
Manufacture & Installation
Your frames are precision-manufactured, then professionally installed. We manage the full project from foundations to completion.
Handover & Aftercare
We don’t consider a project complete until you’re fully satisfied. Your installation is covered by a 10-year structural guarantee.
What Our Customers Say
Real homeowners sharing their experience of working with Room Outside.
“Room Outside did an amazing job with our extension. The design is modern, the build quality is excellent, and the team was professional from start to finish. The space has completely transformed our home.”
“What a fabulous service. I am so pleased with the work that Matt and Room Outside have carried out. They are certainly a Company you can trust. Very happy with the end result.”
“Delighted with our experience. Richard spent a great deal of time and effort to achieve exactly what we wanted. He has amazing knowledge of materials and finishes. We are absolutely delighted.”
Design & Material FAQs
Common questions about conservatory and glass extension design, materials, planning, and costs.
It depends on your property style, budget, and how you’ll use the space. Hardwood suits period homes, aluminium and structural glass suit contemporary extensions, uPVC is low-maintenance and affordable, and oak is ideal for garden rooms and characterful extensions. Our free design visit helps you decide.
Many conservatories and glass extensions fall under permitted development, meaning planning permission is not required. However, listed buildings, conservation areas, and larger extensions may need approval. We advise during your design visit and handle applications where necessary.
Developed by Room Outside, New Generation Glass is an advanced glazing technology that provides superior thermal efficiency and year-round comfort without the need for blinds or air conditioning. It can be incorporated into any frame material.
Costs vary depending on size, material, glazing, and complexity. As a guide, bespoke conservatories and glass extensions typically start from £25,000–£35,000 for uPVC, with hardwood, aluminium, and structural glass at premium levels. We provide a detailed quotation after your design visit.
Most projects take 8–12 weeks from design approval to completion, depending on size and material. Orangeries and complex extensions may take 12–16 weeks. We provide a timeline with your quotation.
We offer a 10-year structural guarantee backed by UK insurers, plus manufacturer warranties on glazing, roofing, and materials. Full terms are supplied with your quotation.
Start Your Design Journey Today
Bespoke design across six premium materials, expert guidance, and a free home consultation – everything you need to create your perfect Room Outside.
Call us anytime on 01243 538999 – David our digital assistant will take a few details so the right specialist can follow up personally.