uPVC
uPVC Casement Windows
Casement windows are the most popular window type in British homes. Our Rehau uPVC casement windows blend traditional design with modern thermal technology, achieving energy ratings up to A+. Multi-chamber profiles reduce heat loss while argon-filled glazing cuts noise and energy bills.
Features & Benefits
A+ Achievable
Multi-chamber Rehau profiles with argon-filled glazing for maximum efficiency
Multiple Styles
Available in chamfered and sculptured profiles to suit any property
Low Maintenance
uPVC doesn't warp, rot or need painting — just wipe clean
Colour Options
White, woodgrain, and coloured foil finishes available
Multi-Point Locking
Secure espagnolette locking with toughened safety glass as standard
70mm Profile
Rehau TOTAL70 range offering excellent thermal and acoustic insulation
Our Installations
Technical Specifications
Frequently Asked Questions
What uPVC window system do you install?
We install the Rehau TOTAL70 system: a 70mm multi-chamber profile that can achieve an A+ energy rating, with U-values down to 0.8 W/m²K using triple glazing. All installations are PAS 24 certified, FENSA registered, and include a 10-year CPA insurance-backed guarantee.
How much do uPVC casement windows cost?
Final price depends on size, specification and glazing options (double or triple). Every installation is FENSA registered with a 10-year CPA insurance-backed guarantee. Request a free no-obligation quote.
How long do uPVC windows last?
Quality Rehau TOTAL70 uPVC windows last 35+ years with minimal maintenance.
Is triple glazing worth it?
Provides superior thermal and acoustic insulation, particularly beneficial for properties near busy roads or in exposed locations.
How long does installation take?
Approximately one hour per window. Full-house installations typically complete within one to two days. Every installation is FENSA registered with a CPA insurance-backed guarantee.
Related Guides
In-depth advice from the Vitrum Solutions blog to help you choose with confidence.
How Much Do New and Replacement Windows Cost in the UK? 2026 Price Guide
Honest 2026 UK pricing for new replacement windows. Real cost ranges per window for uPVC, aluminium, sash and bay windows, plus full-house totals and what affects the price.
CostsHow Much Do uPVC Windows Cost in the UK? 2026 Pricing Guide
Complete 2026 uPVC window cost guide — Rehau TOTAL70 casement, bay, sliding sash and French door prices, energy savings, FENSA certification and what affects your quote.
FAQHow Long Does Double Glazing Last? Signs to Replace
How long double glazing lasts in the UK, signs of failure to watch for, when to repair vs replace, and what modern replacements cost in 2026.
ComparisonAluminium vs uPVC Windows 2026: Cost, U-Values, Lifespan Compared
Aluminium vs uPVC windows head-to-head: sightlines, thermal performance, lifespan and how the costs compare.
GuideWhat is a U-Value? Window & Door Energy Ratings Explained
U-values measure how well windows and doors insulate your home. This guide explains U-values in plain English — what good looks like, what affects the number, and how to use it when comparing quotes.
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