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UPVC Windows

Local Independent Company Installing Windows for Over 30 Years

Installation services are provided in Norfolk, Suffolk, and Essex.

For a FREE no obligation quotation, get in touch with us today.

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Why UPVC?

UPVC stands for Unplasticised Poly Vinyl Chloride. Also sometimes known as vinyl, it is a rigid, long-lasting, durable, and low-maintenance material.

Features of UPVC windows:
  • Energy efficient: Both double-glazed and triple-glazed options are available.

  • Strong and secure: Designed with robustness in mind.

  • Variety: Comes in styles like Woodgrain, White, Anthracite Grey, and Irish Oak.

  • Practical and affordable: The UK’s top choice for replacement windows and doors.

  • Stylish: Complements all properties.

  • Quality: Benefits from 40 years of UK manufacturing advancements.

As experienced double glazing fitters, we ensure every installation meets the highest thermal performance and long-term reliability standards.

What We Do?

Our services are characterised by honest advice, quality workmanship, and a friendly, reliable service from start to finish. We cater to customers across Suffolk, Norfolk, and beyond, ensuring all our windows align with our standards for excellence and customer satisfaction.

Our UPVC Windows Offer:
  • A+ energy efficiency

  • Easy-clean hinges

  • 10-year guarantee

  • Various styles and finishes, including white, anthracite grey, woodgrain, and Irish oak

Whether you’re replacing old windows or installing new ones, we provide made-to-measure options that blend seamlessly with your home’s aesthetic.

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Our Windows Are Maintenance Free!

Our windows are supplied with easy clean hinges that only need an occasional wipe down with warm soapy water.

Rust Free

Recyclable

Rot Free

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Lead Free

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Our sealed units are custom-made to your requirements, including size, glass type, spacer colour and thickness, and energy rating. Glass options include laminated, annealed, and toughened. Our double glazing fitters ensure each unit is installed with precision and care.

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UPVC bay windows come in a number of styles, including bow, angle and box. Bow windows are smoother and form a curve that projects outwards from a house rather than the ‘box’ shape of a bay window. We offer full bay window installation services, with a range of designs to suit both traditional and modern homes.

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UPVC sash windows are a perfect alternative to wooden sash windows. They combine traditional Georgian style with modern thermal efficiency and security, making traditional Georgian sash windows functional.

Why Choose Us

With over 30 years of experience, Carlton UPVC Home Improvements is a family-run business built on trust, quality, and a straightforward approach. We don’t use pressure sales tactics—just honest advice and reliable service. Every window is made to measure, installed by skilled fitters, and backed by a 10-year guarantee.

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Quiet and Warm

All our windows are made to measure and come A+ rated as standard. The multi-chambered frame and sash reflect heat back in, preventing it from escaping. Argon gas between the panes blocks out cold, and low-conductivity spacers help retain warmth. Double weather-resistant seals stop rain and draughts. Together, these features boost thermal efficiency, keeping your home warmer, quieter, and more energy efficient.

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Assured Certified

We are an Assured Certified installer. Assure is an official, UKAS-accredited Competent Persons Scheme authorised by the Ministry of Housing, Communities and Local Government (MHCLG) for the replacement of windows, roof windows, roof lights and doors in England and Wales.

Every project is automatically registered and backed by a 10-year warranty, providing further peace of mind and guaranteed satisfaction for our clients.

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Safe and Secure 

All of our windows meet the British Standard for security, ensuring that your home has the highest level of protection. We use an internal glazing bead to prevent the glass being removed from the outside. In addition, our windows are all fitted Shockbolt Locking Secured by design locking system and Fire Escape as standard.

UPVC Casement Windows
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UPVC Casement Windows

A casement is a window that is attached to its frame by one or more hinges at the side. They are used singly or in pairs within a common frame.

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Residence 9 (R9) Windows

Residence-9 Window – R9 is manufactured from a modern composite material to give a virtually maintenance free finish. It is a new window system designed to replicate the 19th Century Flush Timber Windows.

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Astragal Bar Windows

Astragal bar windows are where the bars are planted on to the glass. They separate panes of glass, giving the effect of traditional period features.

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Vertical Slider Windows

Our vertical slider windows maintain the period features of Georgian sliding windows without draughts, rattling or poor security. Our design combines a smooth glide with high-quality hardware.

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Georgian Bar Windows

Georgian bar windows are where the bars are sandwiched between the pains of glass, creating the Georgian window style but remaining easy to clear and maintain.

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Tilt & Turn Windows

Tilt and turn windows are some of the most versatile UPVC windows available. The windows open inwards to allow you to clean the glass without leaning outside, whilst the tilt option provides ventilation without compromising security.

​How much maintenance will my windows require?

​Hardly any! We would recommend using a good quality glass cleaner to regularly clean your windows and soapy water only to clean window frames.

Are they expensive?

Compared to other window materials, such as timber and aluminium, UPVC is more affordable. If you would like a free, no obligation quote please get in touch with us.

Should I change all of my windows at the same time?

There’s no need to change all your windows at once. If it is more convenient for you and your budget, we can install one or two windows at a time.

What styles are available?

We have a wide range of window styles and colours available to suit all types of property. Gone are the days of simple white UPVC window frames, now you can choose from wood grain, grey and oak amongst others.

Can shutters be fitted to UPVC windows?

Yes. The process of fitting shutters to UPVC window frames is the same as timber frames because they are usually fitted to the building rather than the frame itself. We would recommend using a specialist company to ensure clearance from handles and hinges, and easy opening of the windows.

How long do UPVC windows last?

The life expectancy of UPVC doors and windows is around 30 years.

If fitted correctly, UPVC windows can achieve energy ratings as high as ‘A’. This is best possible energy efficiency within homes and exceeds the industry requirement.

Will I need planning permission for new windows?

Planning permission is not normally needed for repairing, fitting or replacing doors and windows, unless your building is listed, or you live in a conservation area. If this is the case, we recommend you check with your local planning authority before going ahead.

How long will installation take?

Installation time depends on the number of windows and style, but generally a whole house (8-10 windows) will take 1-2 days to complete. When we visit your property to carry out a survey, we will understand the scope of work required and be able to give you a more accurate time estimate.

What happens to my old windows?

If your old windows are UPVC, we will send them to a recycling facility where they will be used to make new energy efficient products.Will I need to redecorate or replaster after installation? It is possible that some plaster work will be required around the window reveals, but our installer will carry this out for you.

Will the installer need access to my home?

Yes, we need access to both the outside and inside of the property in order to replace the windows. Our installers are all fully trained and will make necessary arrangements with you to access your home. We respect any health concerns, for example COVID, and will clear away all mess at the end of the job.

Will I need to remove my curtains or other window dressings?

Yes, we will need full access to the windows to carry out the installation.

Would highly recommend this Company. Just installed a new porch on my property. Quick reply for quotation, and date for installation.
Work carried out professionally.
Very hard working and friendly family business.

Give Us a call for a FREE Quotation on:

If you have any questions about UPVC windows and doors, or any of the products we are able to supply, please do not hesitate to give us a call.

We pride ourselves in providing the very best servic to our customers so they can gain the windows they want at a price that right.

So start the journey and get your property looking just how you want it!

Service Areas:

All over Norfolk and Suffolk

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