Cost for your windows & doors

Get started today and complete our form to request your free quote

Published on September 29, 2023 11:54 AM

Most of us see plastic as a very environmentally unfriendly product that should be avoided as much as possible. Here at Colin’s Sash Windows often when we post photos of our sash windows on our Facebook page, which is one of the most popular in window industry with an amazing 11,000 followers, we get comments such as “plastic sash windows? They’re blighting the UK’s streets”.

In this article I’m using facts and figures from a White Paper published by one of our uPVC windows profile suppliers, Deceuninck. They supply profiles for the majority of our casement windows and flush casement windows. The study was from a sample of 2000 respondents.

uPVC sash windows

What are uPVC windows?

If you’re on the hunt for the perfect windows for your home, uPVC windows are worth considering. But what exactly are they? Well, let’s break it down in simple terms.

uPVC stands for “unplasticized polyvinyl chloride.” It’s a tough and durable material, often used in construction for its remarkable properties. When we talk about uPVC windows, we’re talking about windows made from this sturdy material.

What sets uPVC windows apart is their exceptional resistance to the elements. They don’t warp, rot, or fade in the sun, which means your windows will look as good as new for years to come.

But that’s not all – uPVC windows are energy-efficient, helping you save on heating and cooling costs. Plus, they’re easy to maintain, requiring little more than a wipe-down to keep them sparkling clean.

So, if you want windows that are long-lasting, low-maintenance, and wallet-friendly, uPVC windows might just be the perfect fit for your home!

Why are uPVC windows so popular?

uPVC windows have become the darlings of the window world, and for some pretty awesome reasons. Picture this: durability that rivals superheroes. These uPVC windows laugh in the face of rain, snow, and even the sun’s relentless rays. No warping, no rotting, and definitely no fading. Once you’ve got them, they’re your low-maintenance buddies, giving you more time for Netflix marathons or gardening – whatever floats your boat.

Now, here’s the cool part – uPVC windows are like magic for your energy bills. They’re your home’s secret weapon against drafts and temperature extremes.

In winter, they trap the warmth in, and in summer, they keep the heat out. Cha-ching! Say goodbye to sky-high energy costs. Plus, these windows are eco-warriors in disguise.

They’re recyclable and help cut down on your carbon footprint. So, when you pick uPVC windows, you’re not just upgrading your home; you’re doing a solid for the planet.

That’s why everyone’s talking about them – they’re your home’s best friend, your wallet’s saviour, and the Earth’s cheerleader, all rolled into one.

Upgrade Your Home with Energy-Efficient uPVC Windows Today!

Enjoy Lower Energy Bills
Say Goodbye to Drafts
Enhance Your Home’s Aesthetics

8 Benefits that make uPVC windows sustainable

Following are the benefits that make uPVC windows sustainable.

1. Recyclability

One of the most surprising facts about uPVC windows is their recyclability. UPVC windows and doors are 100% recyclable at the end of their lifespan. 86% of the respondents in the survey didn’t know that. It can be broken down and processed to create new uPVC products, such as pipes, profiles, and even new uPVC window frames. Recycling uPVC windows can have environmental benefits, including reducing the demand for virgin uPVC production, conserving resources, and lowering energy consumption compared to producing new uPVC from raw materials.

2. Energy efficiency

50% of the respondents think that upvc windows are the most energy efficient. This compares to 14% for timber and 7% for aluminium. uPVC windows have excellent thermal insulation properties, which helps to reduce energy consumption for heating and cooling. They can prevent heat from escaping in cold weather and prevent heat from entering in hot weather. This means reduced energy bills and a lower carbon footprint over the lifetime of the windows. Energy efficient uPVC windows are a great choice.

3. Durability

uPVC is a highly durable material that can last for several decades without significant degradation. This longevity reduces the need for frequent replacements, thereby conserving resources and reducing waste.

4. Low Maintenance

One of the uPVC window benefits is that require very little maintenance. Unlike timber windows they do not need painting or staining, and they are resistant to rot, corrosion, and pests. This reduces the use of resources and chemicals required for upkeep.

5. Minimal Environmental Impact

The manufacturing process of uPVC windows typically involves fewer harmful chemicals and emissions compared to other materials like aluminium. Additionally, the long lifespan of uPVC windows offsets their initial environmental impact.

6. Reduced Noise Pollution

uPVC windows provide good sound insulation, which can help create quieter and more comfortable living environments. Soundproof uPVC windows reduce the need for additional soundproofing measures.

7. Cost-Effective Window Choices

The initial cost of uPVC windows may be higher than some other materials, but their long-term durability and energy-saving benefits can result in cost savings over time, making them economically sustainable for homeowners.

8. Reduced Landfill Waste

Durable uPVC profiles do not end up in landfills reducing the burden on waste management systems. They’re environmentally friendly windows!


As awareness of environmental issues and climate change grows, consumers are increasingly interested in making environmentally responsible choices. Sustainable windows and doors align with these concerns by promoting energy efficiency, reducing resource consumption, and minimizing the carbon footprint associated with the construction and operation of buildings.

Aesthetics, security and energy efficiency are primary choices for customers when choosing their new windows and doors. In the survey 91% of respondents consider security to be the most important factor, 86% consider appearance and 67% consider sustainability to be the most important factors.

I hope after reading this you will consider uPVC to be environmentally friendly windows, one of the green building materials and consider upgrading to uPVC windows!

Colin Greenslade
Written by Colin Greenslade
I'm the founder of Colin's Sash Windows. I disrupted the sash windows market in the UK in 2014 by introducing fixed prices for uPVC sash windows in the UK. Before this they were generally only available at very high prices through window installers. Today our business is one of the market leaders in supply only windows, doors and roofs in the UK.

Get In Touch

Please fill out the form below to send us an email and we will get back to you as soon as possible.

Contact Info

Working Hours 8:00 AM - 8:00 PM, Mon - Sun

WhatsApp 07930 098867

Fax 01525 552141

We Accept

We accept MasterCard, Visa, Maestro