About Us
London's trusted FENSA-registered installer of premium PVC-U windows, doors and conservatories since 1998.
Trusted by London
Homeowners
Bargain Windows is a FENSA-registered company specialising in the manufacture and installation of PVC-U windows and doors. Using premium REHAU German-engineered profiles, we guarantee a dramatic transformation in the look and performance of your home.
Founded with a simple mission — to deliver the highest quality window and door installations at genuinely competitive prices — we have grown to become one of London's most trusted installers, completing thousands of installations across the capital.
Every project is handled by our own trained and accredited installation teams, ensuring the same high standard of workmanship on every job, from a single window replacement to a full home renovation.
- A-Rated energy efficiency
- Superior sound insulation
- Multi-point security locking
- Weather-sealed for UK climate
- Won't rot, warp or discolour
- Low maintenance for life
- Available in 20+ colour finishes
- Fully recyclable profiles
Built on Four Pillars
Safety & Security
Our windows and doors are manufactured to meet British Standard BS7950 with multi-point locking systems and PAS 24 accredited hardware that surpass standard requirements.
Thermal Insulation
Achieving a Window Energy Rating of Band A, our REHAU profiles combined with high-performance double or triple glazing deliver outstanding thermal efficiency and lower energy bills.
Sound Insulation
Superior acoustic performance comes as standard. For homes on busy London roads, we can specify specialist higher-performing acoustic glazing for up to 45dB noise reduction.
Colour & Style
Choose from over 20 colour finishes to complement any property style. From classic white to bold anthracite grey, our PVC-U profiles stay vibrant and never need repainting.