uPVC Windows
Made-to-Measure & Expertly Fitted
uPVC Windows Croydon & South London
Looking for uPVC windows that keep your home warm, quiet, and secure without draining your budget? You are in the right place. At 4Moon Windows, we design, supply, and install premium uPVC windows in Croydon, Thornton Heath, and across South London — made to measure for your home and fitted by our own experienced team. uPVC remains the UK's most popular window material, and for good reason. It delivers outstanding thermal performance, needs almost no upkeep, and costs far less than timber or aluminium. Whether you are replacing tired single glazing or upgrading your whole property, our new uPVC windows are built to perform for decades.
Energy Efficient
Multi-chambered frames and A-rated double glazing.
Low Maintenance
uPVC never rots, warps, flakes, or needs repainting.
Highly Secure
Reinforced frames, internally beaded glazing, and multi-point locking systems.
Long Lasting
Quality uPVC windows typically last 20 to 30 years.
upvc windows
Our Range of New uPVC Windows
uPVC Casement Windows
The classic British choice. Casement windows open outwards on side or top hinges, giving excellent ventilation, slim sightlines, and maximum natural light. They suit almost every property style.
uPVC Tilt & Turn Windows
Clever and practical. Tilt and turn windows tilt inwards for secure ventilation or swing fully open for easy cleaning — ideal for flats and upper floors across South London where outside access is limited.
uPVC Sash Windows
Love the period look? Our uPVC sliding sash windows recreate traditional timber elegance with none of the upkeep. They are a favourite for heritage-style homes in Croydon, Purley, and Streatham.
uPVC Bay & Bow Windows
Make a statement and add space. Bay and bow windows flood rooms with light, create a feeling of extra room, and lift kerb appeal — often adding real value to your property.
Energy-Efficient uPVC Windows That Cut Your Bills
With energy prices still a worry for many households, window performance matters more than ever. Our uPVC windows in Croydon are built with multi-chambered profiles that trap pockets of warm air, paired with A-rated glazing as standard. The result? Less heat escaping in winter, a cooler home in summer, and lower energy bills every month. According to the Energy Saving Trust, upgrading to A-rated windows can save a typical home a meaningful sum each year — and reduce your carbon footprint at the same time. All our installations comply with current Building Regulations, so your new windows are certified, documented, and ready for any future property sale.
WHY COR 4700?
Cheap uPVC Windows London — Without Cutting Corners
Searching for cheap uPVC windows in London usually means wading through low quotes that hide poor materials or rushed fitting. We do things differently. Because we manage manufacturing and installation ourselves, there is no middleman markup. You get honest, competitive pricing on genuinely high-quality windows
Why Homeowners Across South London Trust 4Moon Windows
Choosing an installer is just as important as choosing the window. Here is what sets us apart:
Get Your Free uPVC Windows Quote Today
Ready to make your home warmer, quieter, and more secure?
Contact 4Moon Windows today for a free, no-obligation quote on premium uPVC windows in Croydon and South London. Call our friendly team or request a callback online — we will handle the rest.
FAQ
Frequently Asked Questions
Prices depend on size, style, and glazing options. As a rough guide, a standard uPVC casement window typically costs between £350 and £900 fully installed. We provide free home surveys and transparent, itemised quotes, so you know exactly what you are paying for before any work begins.
Quality uPVC windows last 20 to 30 years or more with minimal care. Unlike timber, they will not rot, warp, or need repainting — an occasional wipe down is all they require. All our installations are backed by a long-term guarantee.
Yes. Our windows combine multi-chambered uPVC frames with A-rated double glazing to significantly reduce heat loss. This keeps your home warmer in winter, cooler in summer, and helps lower your energy bills throughout the year.
In most cases, no. Like-for-like window replacements on standard residential homes do not require planning permission. Listed buildings and conservation areas have extra rules, and we will advise you on this during your free survey.
Most window installations are completed within one to two days, depending on the number of windows. Our fitters work cleanly and efficiently, protecting your home throughout and tidying up fully before they leave.
uPVC can be manufactured efficiently at scale, which keeps prices down without sacrificing performance. It still delivers excellent insulation, security, and durability — which is exactly why it remains the most popular window material in the UK.