White REHAU uPVC Casement Windows
A versatile, energy-efficient replacement window style that suits most Leicester homes and keeps the specification good value.
3,000+
Happy Customers
35
Years Experience
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uPVC windows Leicester
Warm, low-maintenance replacement windows made to suit your home.
uPVC windows remain a strong choice for Leicester homes because they are practical, energy efficient and easy to look after.
Gemini helps you compare openers, frame colours, glazing and room-by-room requirements before arranging a clear quote.
Get a FREE quoteuPVC windows Leicester
Practical advice before you choose upvc windows.
Choosing upvc windows is easier when the quote is based on the home rather than a generic product list. Gemini looks at the opening, the way the room is used, the existing frames and the finish you want before recommending a sensible specification.
That means your uPVC windows Leicester quote can cover the details that affect the final result: measurements, frame colours, glass, hardware, security, access and the tidy finishing work around the installation.
Local fitting
What Gemini checks for a better fitted finish.
A good result depends on the survey and installation details as much as the product itself. These are the practical checks Gemini works through before fitting.
- The existing frame condition, sill and surrounding brickwork.
- The style, colour and glazing choices that suit the property.
- Ventilation, access, security and everyday usability.
- How the finished installation will be sealed, trimmed and guaranteed.
Quote starter kit
Turn a Window, Doorway or Idea Into a Useful Quote
A few quick details are enough to start. Gemini can fill in the gaps, arrange a visit and help you avoid over-specifying what you do not need.
1Take a quick photo
Inside and outside photos help show the opening, frame, cill and any awkward fitting details.
2Add rough sizes
Width and height in millimetres are helpful, but Gemini can measure properly if you are unsure.
3Share the style
Send brochure choices, colour ideas, glazing preferences or just describe the look you want.
Window choices
Popular uPVC Window Choices
Rio Flush Fit Windows
A cleaner, modern window style for homeowners who want slimmer-looking lines and a more contemporary finish.
Areas We Cover
uPVC Windows Fitted Across Leicester
Gemini Windows and Doors works across Leicester, Whetstone and surrounding Leicestershire towns and villages.
AnsteyBarwellBroughton AstleyBurbageClaybrook MagnaClaybrook ParvaCoalvilleCroftCountesthorpeEarl ShiltonEnderbyFrolesworthHinckleyHuncoteIbstockKirby MuxloeKirkby MalloryLeicesterLutterworthNarboroughNewbold VerdonSapcoteSharnfordStapletonStoke GoldingStoney StantonWhetstoneWolvey
Customer feedback over the years
What Our Customers Say
Reliable fitting, careful finishing and helpful advice from first call to final clean-up.
"Very pleased with the new UPVC windows. The work was carried out to a high standard and I would happily recommend Gemini to anyone."
N Forrest
February 2006"Absolutely thrilled with my new room and the overall finish. Gemini were kind, understanding, and the workmanship is first class."
Molly H
January 2010"Very professional service throughout. The new windows have made a big difference and the team were a pleasure to deal with."
J Carr
December 2013"Excellent installation of our new conservatory. The work was carried out professionally with no mess left behind and the finished result is immaculate."
D & M Graham
November 2019"We have always used Gemini for replacing windows and doors. The workmanship is consistently of a very high standard and we would definitely recommend."
Customer (Leicester)
April 2026"Used Gemini for multiple windows and a new front door. They were prompt, professional, and gave honest advice, only recommending work that was genuinely needed."
Customer (Leicester)
April 2026"Very professional with high quality workmanship. Always delivered on the agreed date and I would highly recommend to family and friends."
Sandra Rogers
April 2026"Amazing service from survey to completion. Great communication, completed on time, no mess left behind, and excellent value for money."
Martin Renfrey
April 2026uPVC Window FAQs
uPVC Window Questions
Gemini can fit REHAU casement windows, bay windows, bow windows, fixed panes, top openers, side openers, flush fit windows and decorative glazing layouts.
Yes. Standard windows are A energy rated as standard, with options depending on the product, glazing and specification chosen for your property.
Modern glazing and well-fitted frames can help reduce condensation, draughts and outside noise compared with older window units.
Most window and door installations are completed within 1-2 days, depending on the size of the project and the number of frames being replaced.
Yes, Gemini Windows and Doors is FENSA registered, helping ensure replacement window and door installations meet current Building Regulations.
Yes. Gemini provides a 10 year guarantee on uPVC frames, with local aftercare if you need help later.
Free quote
Get Your Free Quote Today
Ready to transform your home? Speak directly with Gemini.