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DF INSTALLATIONS / WINDOW COLLECTION

uPVC
Windows.

Everyday practicality, considered styling and a professional finish. Explore classic white casements, softer heritage shades and contemporary grey uPVC windows for UK homes.

Get a window quote ↗Explore window designs ↓
20+ years fitting experienceSupply & fitInstallation only considered
White uPVC replacement window on a roughcast bungalow
Images show design examples. Availability and final specifications depend on the chosen manufacturer.
FITTING EXPERIENCE: 20+ YEARS
HERTFORDSHIRE & NORTH LONDON
FULL REPLACEMENTS OR SINGLE WINDOWS
SUPPLY & FIT / FITTING ONLY
WHY uPVC?

Built for real homes.
Not just the showroom.

uPVC stands for unplasticised polyvinyl chloride: a rigid frame material used in replacement windows across the UK. It offers a balance of everyday durability, design choice and easy upkeep. The right result depends on much more than the frame colour: opening style, glazing, seals and installation all matter.

A practical choice for a single window or a whole-house replacementTraditional and contemporary casement arrangementsSuitable for a wide range of UK house styles, subject to checks
White uPVC casement windows on a traditional 1980s UK house
Cream uPVC window against brick cottage
Grey uPVC windows on a 1960s semi-detached house
WHAT YOU GET

The benefits of modern uPVC windows.

The right window should look good, feel comfortable and work reliably every day. These are the practical details worth comparing before you buy.

01 / EFFICIENCY

Better thermal performance

Modern glazing and well-sealed frames can reduce heat loss compared with old, poorly performing windows. Check whole-window ratings for the exact specification.

02 / MAINTENANCE

Easy everyday upkeep

uPVC frames do not need routine repainting. Cleaning the profiles, hardware and drainage paths helps maintain their finish and operation.

03 / STYLE

More looks than white

Choose classic white, cream, grey, anthracite, Chartwell-style shades or timber-effect finishes where supported by the manufacturer.

04 / SECURITY

Secure opening choices

Locking hardware, glazing and frame construction are important parts of the specification. Ask which certified security options are available.

05 / COMFORT

Reduced unwanted draughts

New seals and careful installation can improve airtightness around the window. Correct ventilation must still be provided where required.

06 / FLEXIBILITY

Configurations to suit

Fixed panes, side-hung and top-hung casements, toplights and multi-light designs can be tailored to the existing opening, subject to suitability.

Grey uPVC toplight window showing an opening configuration
BEYOND FRAME COLOUR

What makes a good window?

A new window is a complete system. When you compare quotations, look at the details below instead of choosing purely by a photograph or frame colour.

Multi-chamber uPVC profiles

Frame designs differ in depth, reinforcement and chamber construction. Suitability depends on the window size and system.

Double or triple glazing

Compare glazing build-up, low-E coatings, gas fill and warm-edge spacer options, not just the number of panes.

Hardware, hinges and locks

Casement stays, friction hinges and locking choices affect day-to-day use, cleaning access and security.

Ventilation, drainage and fitting

Appropriate background ventilation, weather seals, perimeter sealing and drainage all contribute to performance.

FINISHES & FRAME COLOURS

A colour for every kind of home.

A classic white frame is a familiar choice, but the finish can change how windows sit against brick, render or stone. For more traditional homes, warm neutrals and wood-look finishes can give a softer result. Grey and anthracite create a sharper contrast.

White
Cream
Grey
Anthracite
Rosewood / Oak
Chartwell-style green

Colour swatches are illustrative; actual materials and finish options must be checked against supplier samples.

Chartwell green uPVC casement window on a cottage
THE FITTING PROCESS

Thoughtful choices. Careful installation.

Whether you're arranging supply and fit or already have suitable windows ready to install, DF Installations can discuss the practical scope.

01 / ENQUIRE

Tell us about your windows

Send your postcode, photographs, number of windows and the styles you're considering.

02 / CHECK

Review the openings

Discuss dimensions, window configuration, access, ventilation and any making-good work.

03 / QUOTE

Agree the specification

Confirm supply responsibility, installation scope, product details and the proposed programme.

04 / INSTALL

Fit, adjust and finish

Install and check operation, seals and finishing in line with the agreed scope.

QUESTIONS ANSWERED

uPVC window FAQs.

The practical answers homeowners need before arranging replacement uPVC windows.

What is a uPVC window?
uPVC is unplasticised polyvinyl chloride, a rigid material used for window frames. It is popular because it is relatively low maintenance, available in multiple finishes and can be paired with energy-efficient glazing.
Are uPVC windows energy efficient?
They can be. Thermal performance depends on the complete window specification, including frame construction, glazing, seals, spacers and installation. Ask about the whole-window U-value or Window Energy Rating for the product being quoted.
Can I choose different frame colours?
Yes. Common options include white, cream, grey, anthracite and wood-look finishes such as rosewood or Irish oak. The exact palette and whether internal and external colours can differ depend on the manufacturer.
Do you replace one window or a whole house?
Both single-window replacements and larger projects can be discussed. We review the opening, access, required finishing and product suitability before confirming a quotation.
Can you fit uPVC windows that I supply?
Installation-only enquiries are welcome for suitable systems. We will need the manufacturer details, window schedule, dimensions and information on the existing openings before confirming whether fitting-only work is appropriate.
How much does uPVC window installation cost?
There is no reliable fixed price without knowing the size, opening configuration, glass specification, frame finish, access and making-good requirements. Send photographs and your postcode to request a project-specific quote.
How long does it take to replace a uPVC window?
Timing depends on the number of units and the condition of each opening. A straightforward replacement may be completed relatively quickly, while larger jobs, access restrictions or remedial work take longer. We discuss the likely programme during quotation.
Can I choose top-opening or side-opening casements?
Often, yes. Side-hung and top-hung casements, fixed panes and multi-light layouts may be available. The opening design must suit ventilation, escape requirements, safety and the selected frame system.
Will new windows help reduce noise and draughts?
Properly specified and installed replacements can help improve airtightness and reduce outside noise. Results depend on glass choice, seals, wall openings and existing building conditions; no specific sound reduction can be promised without a specification.
Do replacement uPVC windows need Building Regulations approval?
Replacement windows in England generally need to meet applicable Building Regulations. Qualifying work can be self-certified by an appropriately registered competent-person installer, or handled through the relevant Building Control route. We confirm the applicable process for the installation scope; conservation and listed-building constraints may also apply.
LOCAL WINDOW FITTING
Hatfield ↗Welwyn Garden City ↗St Albans ↗Our work ↗
READY FOR THE NEXT STEP?

New uPVC windows.
Fitted with care.

Tell us what you'd like to replace, share a few photographs and your postcode, and we'll discuss the right next step for your project.

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