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UPVC Windows

Versatile and very adaptable, our selection of UPVC windows can suit any style of property. Crystal Clear are pleased to provide award-winning windows that are reliable, secure and easy to maintain.


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not your traditional


Traditionally known for being the most common type of windows fitted for domestic and commercial properties, uPVC windows offer the whole package. Gone are the days of just white plastic windows, as our trusted suppliers with years of manufacturing experience in the industry present a wide range of options to suit your style.

There are many benefits to purchasing uPVC windows. The material is resistant to weathering, has low maintenance requirements, is tough on impact and retains its shape. Its impressive energy features with double and triple glazing options means that they rate highly in efficiency testing and aid thermal performance. Available in a variety of colours and finishes each product is sure to complement your property and its external or internal features.

From cottages to converted churches, new builds and properties in need of replacement windows, these versatile designs can easily be adapted to suit you. Its multi-point high-security locking system ensures safety to the highest standard.

why choose us

for UPVC windows?

Quality Customer Service

20 year product guarantee on some products

10 Year Guarantee

22 years in the industry

Free Advice Line

A+ Energy Efficiency

Accredited installers

Ombudsman Protection


infinity Windows

built for the great indoors

Our premium choice of windows come from UK manufacturer Infinity. Known for their traditional timber-style finish with all the benefits of UPVC, they are extremely durable and look great in any surrounding. Expertly made to your exact requirements, they are beautifully crafted and installed to the highest standards by the dedicated team. Offering smooth operation that’s built to last they provide a unique night vent facility whilst ensuring the utmost security for your home.

Secured by design

10 Year Guarantee

A+ Energy Efficiency


AluPlAST windows

to set your home apart

German-engineered combining classic and contemporary finishes, Aluplast are the preferred choice for architects and developers. Trusted to deliver on energy efficiency, sound insulation and an extensive range of configuration and finishes, their award-winning designs ooze elegance and comfort. Its innovative design of double and triple glazed windows use leading PVC-U technology to ensure high security. Pleasing to the eye they are guaranteed to bring exceptional performance and style to any building. With a typical lifespan of 30 years they require little maintenance and are protected from decay.

Secured by design

10 Year Guarantee

A+ Energy Efficiency

Product features


There’s no doubt about it – colour matters. It’s as much part of your windows and doors as the glass and the frame. Colour can change everything: it can be bold and forceful, or subtle and elegant. It can shout or whisper. It can blend in or stand out. Colour’s an expression of you and what you want your home to be. Our range includes finishes that are timeless or traditional, beautiful woodgrain effects, accent colours and on-trend shades.


Our UPVC windows can be designed with either triple or double glazing units. Maximising energy efficiency and soundproofing with market-leading options that ensure that you’re getting the best insulation to keep down your energy bills and the noise levels in the home. Speak to one of our knowledgeable advisors about which option is best for you when designing your modern glazing window unit.


The safety of our customers is always a top priority and that’s why we collaborate with award-winning manufacturers to deliver a product with utmost security. Giving you the ultimate peace of mind, we never compromise on quality.

Our UPVC windows include the latest built-in safety features and can provide enhanced resistance to forced entry. The high-security handles and locks uphold the highest security standards to ensure that you sleep safe and sound.


Keeping down energy bills is one of the main factors of replacing old windows with new ones. UPVC windows have time and time again proved that they are an excellent choice. Compared to wood frames, they have better insulation values and are able to reduce heating costs, keeping the cold out and the warmth inside the home.

The windows we supply are sealed for increased energy efficiency and feature a superb energy rating, providing superb thermal insulation performance. 

Crystal Clear – Where planning your dream home begins

UPVC window faqs

What is a UPVC window?


Made from polymer, UPVC windows are an un-plasticised alternative of PVC which have become one of the most popular materials on the market in recent times. Great for windows because the frame will not fade, rot or decompose because it is resistant to weathering and will uphold its high-quality finish.

What makes them different to other window designs?


The beauty of UPVC windows is that the materials used to produce the frame is so robust that you can design bespoke frames to your liking. This versatility can be adapted to both classic and contemporary homes alike and come in all kinds of shapes, colours and styles. You’re not limited to what aesthetic of window you can design and there are a wide variety of products on offer to suit your requirements.

How do I care for my windows?


We supply UPVC windows that are very low maintenance. Thanks to the high-quality materials they won’t need repainting or any additional treatments. Just wipe down with a damp cloth to retain its pristine appearance. For more information on how to look after your composite door, check our maintenance guide here.

How long do they last?


Durable and designed to withstand the elements, UPVC windows have a typical lifespan of up to 30 years, making them a great choice for your forever home. At Crystal Clear, we ensure to partner with leading manufacturers who deliver the highest quality windows that won’t let you down.

What are the delivery and lead times?


Depending on your requirements, whether you’re looking to buy an off-the-shelf window or a bespoke made-to measure product will determine your delivery and lead time. It’s also worth bearing in mind that if you live in a conservation area, home improvements such as replacing your windows will require planning consent to ensure that architectural features are preserved. Our friendly and knowledge team will be able to assist with an estimated time for your chosen product. This includes the manufacturing process and also the time to install the windows too.


What our customers say

We are delighted to receive such wonderful reviews from our customer regarding the experience they have had with our team, our customer service and the installations team. Thank you to everyone that has taken the time to leave us such great feedback.

Five pink stars

Steve and Steve were the fitters Crystal Clear allocated to our fitting our windows. They were both very professional, courteous, polite and very tidy. They went over and above what we expected by double checking our requirements and making sure that the job was finished to a very high standard. I commend them for their hard work and professionalism. I would highly recommend both of them.

Lynda Bird
Five pink stars

We are very happy with the service provided by Connor and Dean. They were very professional, friendly and went over and above installing our bi fold doors. They arrived on time, answered all our many questions and left our home clean and tidy. They did an amazing job, thank you.

Mandy Ewning
Five pink stars

I just wanted to thank you for your correspondence throughout the installation and in particular I wanted to leave a review of your installers Steve, Steve and another who have done a sterling job with minimal damage and left everything very clean.

Ross Studzinski
Five pink stars

Oustanding workmanship inside and out with a fantastic level of finish we had not expected. Steve and Tom, and the products they fitted (windows and bi-folds), exceeded our expectations, very happy.

Guy Longhorn
Five pink stars

We have just had our garage rear door and patio doors replaced with a UPVC doubled glazed internal blinds replacement and there is nothing else to say but WoW Amazing. The fitting team were so professional and tidy, not a single crack or dent in the original plaster around the interior, the finish looks like a new build we are so impressed, say a big thanks to Steve and Steve the fitters who carried out our replacement. Very Many Thanks

Chris Lowden
Five pink stars

thrilled with the quality of my new front door and especially delighted with the workmanship of Harry despite my chattering to him most of the time. I would highly recommend your company. J Rees

Jean Rees
Pink map of the south-west of England

Come visit our showroom

24 Emery Rd Bristol BS4 5PF

Crystal Clear operate in Bristol, Bath and a number of locations in Somerset and South Gloucestershire. We fit doors, windows and conservatories in the following locations: Portishead, Clevedon, Thornbury, Weston-Super-Mare, Bath, Almondsbury, Nailsea, Yate, Chipping Sodbury, Keynsham and surrounding.

No matter which location you are in, you will receive the same high quality fitting home improvement service and installation of your doors, double glazing windows or conservatory.

Location pin Gloucestershire
Location pin Cheltenham
Location pin Bath
Location pin Frome
Location pin Wells
Location pin Newport
Location pin Weston-super-mare
Location pin Bridgewater
Location pin Portishead
Location pin Clevedon
Location pin Nailsea
Location pin Cheddar
Location pin Winscombe
Location pin Bristol
Location pin Burnham on Sea
Location pin Chepstow
Location pin Shepton Mallet
Location pin Yeovil
Location pin Ilminster
Location pin Taunton
country home in yate with new fitted windows