Glass Extensions Price Guide Transparent UK Pricing
Discover complete pricing for luxury orangeries from £35k, modular glass extensions, frameless extensions & garden rooms. No hidden costs. Honest, itemized quotes for premium home extensions.
Honest Pricing for Premium Home Extensions No Hidden Costs, No Surprises
Transparent pricing from the UK's leading glass extension specialists
At Room Outside, we believe in complete transparency. Every quote includes design, building control, materials, installation, and warranty. No surprise costs. No "starting from" nonsense where the real price is double. Just honest, itemized pricing.
Our Complete Glass Extensions Pricing Range 2025 Transparent Pricing for Every Budget
Transparent pricing for luxury orangeries, modular extensions, frameless glass rooms & garden rooms. All prices include design consultation, building control compliance, professional installation & 10-year warranty.
Luxury Orangery Extensions
Premium orangery extensions transform your winter garden connection. Our solid insulated orangeries with New Generation Glass technology keep you warm through December and cool in July. Ideal for dining, entertaining, and year-round comfort.
- Insulated cavity walls (U-value 0.18)
- New Generation Glass lantern
- 150mm roof insulation
- Building regulations compliance
- 10-year structural warranty
Modular Glass Extensions - Fast Installation
Factory-built modular glass extensions installed in just 5-7 days. Traditional extension quality without the 12-week construction chaos. Perfect for homeowners wanting quick, professional home extension installation with minimal disruption.
- Factory-built modular panels
- Precision steel frame
- Premium thermal insulation
- 5-7 day installation
- 50+ year lifespan
Frameless Glass Extensions - Contemporary Design
Modern frameless glass extensions maximizing natural light and garden views. Structural glass technology with superior thermal efficiency. Perfect for contemporary homes seeking seamless indoor-outdoor living without frame obstructions.
- Frameless glass panels
- Structural glass engineering
- Thermal glass specification
- Building compliance
- Professional installation
Groom Outside - Deep Valet Cleaning
Professional deep valet cleaning & maintenance for conservatories, orangeries & glass extensions. Expert interior and exterior cleaning keeps your glass room looking brand new. Annual maintenance service to preserve and protect your investment.
- Full interior valet cleaning
- Complete exterior cleaning
- Glass polishing & protection
- Frame & structure cleaning
- Professional maintenance check
New Generation Glass - Premium Thermal Technology
Advanced New Generation Glass technology for existing extensions. Upgrade conservatories and glass rooms with superior thermal performance. Reduces glare, blocks UV rays, maintains temperature control for year-round comfort without full rebuild.
- Advanced thermal glass technology
- Reduces glare by up to 50%
- Blocks 99% of UV rays
- Professional installation
- 10-year glass warranty
Oak Framed Extensions - Premium Natural Wood
Premium oak framed extensions combining natural beauty with modern performance. Grade A oak timber with thermal glass creates stunning contemporary rooms with classic appeal. Perfect for period properties and luxury home extensions.
- Grade A oak framing
- Thermal glass specification
- Architectural design
- Premium finishes
- 10-year structural warranty
December Booking Timeline Advantage
Book before Christmas and be ready for summer - when you book makes a critical difference in your completion date
✓ December Booking (Pre-Christmas)
Entire summer to enjoy your new space
✗ February Booking (Post-Christmas)
Summer already passed
June completion = 4-5 months of prime garden use | September completion = Heading into autumn
What Our Customers Say
Real feedback from homeowners who transformed their properties with Room Outside
"We're absolutely delighted with our orangery. The team at Room Outside were professional from start to finish. The pricing was transparent with no hidden costs, and the quality is exceptional."
"The modular extension was installed in just 6 days with minimal disruption. The quality is outstanding and the team were incredibly professional. Highly recommend Room Outside."
"After getting quotes from several companies, Room Outside stood out for their transparency and quality. Our frameless extension has transformed our kitchen and the whole process was seamless."
Quotes Include
Everything you need for a complete, professional glass extension project
Professional Design
Expert consultation to understand your vision. Complete space analysis and design exploration. Absolutely free with no obligation.
3D Visualizations
Professional 3D renderings showing exactly how your extension will look from multiple angles and under different lighting conditions.
Detailed Quote
Complete specification and transparent pricing within 5 days. Every item itemized. No hidden extras or surprise costs.
No Pressure Approach
Consultative, never pushy. You get all information needed to make the right decision for your home at your pace.
Building Compliance
All building control approvals and planning compliance included in the quoted price. We handle all the regulations.
24-Hour Response
Our design team aims to respond to all enquiries within 24 hours (Monday-Friday). Quick turnaround on all project information.
Frequently Asked Questions
Everything you need to know about our pricing and services
Our pricing includes everything: professional design, building control approvals, premium materials, expert installation, and 10-year warranty. We don't use budget materials or rushed installation. We've perfected our craft over 50 years. Quality costs more upfront but saves money long-term.
"There is hardly anything in the world that some man cannot make a little worse and sell a little cheaper, and those who consider price only are this man's lawful prey." — often attributed to John Ruskin (authorship disputed).
"At Room Outside, we design for decades, not just installation day."
No. Our quotes are completely transparent. Every line item is specified. If something isn't in the quote, we don't charge for it. This transparency is core to how we operate. We believe in honest dealings from the start.
Yes, completely. Building regulations, planning approval handling, and all compliance work is included in our quoted price. These are always made transparent so you know what each cost is and have no hidden surprises.
Conservatories have large glass roofs that don't insulate well, becoming unusable by October. Orangeries have 60% solid insulated roofs with 40% thermal glass lanterns. The result: orangeries stay warm in winter and don't overheat in summer. They're usable year-round.
Important Information About Your Investment Making an Informed Decision
Key factors to consider for your glass extension project
What Affects Final Cost?
Size, glass specifications, foundations, location, finish levels, and custom options all impact pricing. We provide detailed itemized quotes explaining each factor.
Payment Terms
These are set out clearly as part of the quotation and are various stage payments depending on the product selected and manufactured.
Return on Investment
Quality extensions increase home value by 5-15%. Energy savings recover costs over time. Year-round usable space adds lifestyle value immediately.
Energy Efficiency
Superior thermal specifications significantly reduce heating needs. Proper insulation and glass mean lower bills. Many customers recover costs through savings in 5-10 years.
Maintenance & Longevity
Quality materials mean minimal maintenance. Thermal glass stays clear. Aluminum frames don't rot. Most customers enjoy 40+ years with standard upkeep.
Planning & Regulations
Requirements vary by location and size. Our quotes include all necessary approvals. We handle all compliance paperwork so you don't worry about regulations.
Speak Directly with Our Design Team
Available: 24 hour – 7-day answering service
Our design team aims to respond to all enquiries within 24 hours