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Si Glazing Solutions, home

Windows, made to measure

New windows change how a home looks from the street and how it feels inside: warmer rooms, fewer draughts and less noise from outside. We supply and install made-to-measure windows in modern and traditional styles, built on Kömmerling uPVC systems.

Every window is measured for your openings, so it fits properly and looks right with the rest of the house. If you’d rather keep your existing windows, secondary glazing is a well-made alternative.

A tall white sliding sash window with trees beyond
A window divided into small panes by black glazing bars, looking onto green leaves

Who it suits

Kömmerling uPVC windows made to measure, from flush sash to clean modern frames, in a range of colours and woodgrain finishes.

Why choose windows from us

Made to measure

Each window is made to the sizes taken at your survey, not adapted from a stock size.

Colours and woodgrains

Choose from a range of colours and woodgrain finishes, inside and out.

Low maintenance

uPVC frames don’t need painting. An occasional wipe keeps them looking good.

Kömmerling uPVC window systems

Kömmerling is a long-established German maker of uPVC (also called PVC-U) window profiles. We work with its systems because they give us a reliable base for windows that are thermally efficient, secure and weather-resistant.

  • Kömmerling Flush 70: a flush sash window, where the opening sash sits level with the frame inside and out, like a traditional timber casement.
  • Kömmerling C70: a versatile system that suits most homes, from new extensions to like-for-like replacements.
  • Modern and traditional styles, made to measure for each opening.
A white casement window with four panes against a dark wall

Flush sash, without the upkeep

Flush sash windows are popular on cottages, Victorian and Edwardian houses and newer homes built in a traditional style. Because the sash closes flush with the frame, the window has a clean, flat face that’s much closer to a timber window than a standard uPVC casement.

The Flush 70 system is available in a range of colours and woodgrain finishes, so you can choose something that suits the brickwork and the age of the property.

A small cottage window in a pale rendered wall

Warmer rooms and lower heat loss

Windows are one of the main ways heat escapes from a house. Replacing old single glazing, or double glazing that has failed, with modern sealed units and well-fitted frames reduces heat loss, cuts draughts and makes rooms near the windows more comfortable.

Energy performance depends on the exact frame, glass and size of each window. When we quote, ask us for the energy rating and U-value of the specific windows we’re recommending, so you can compare like with like.

Secondary glazing by Granada

Secondary glazing is a slim, separate window fitted on the inside of your existing one. Your original windows stay in place, untouched, and the second pane helps with draughts, heat loss and noise.

It’s often the most practical option for listed buildings and homes in conservation areas, where replacing the original windows may not be allowed. We fit Granada secondary glazing, made to measure for each opening.

A white window with glazing bars framing a tree outside

Building Regulations, handled properly

In England, replacement windows have to meet Building Regulations, including minimum standards for energy efficiency, ventilation and, on some windows, fire escape. We’ll explain how your installation will be certified and give you the paperwork you need when the work is finished.

Certified and guaranteed

FENSA registered

Every replacement window and door installation is certified to meet Building Regulations, and you receive a FENSA certificate.

All our products come with the manufacturer’s 10‑year guarantee.

Common questions

Can you make new windows look like my old ones?

Often, yes. At the survey we look at your current windows and the style of the house, then talk you through frame styles, colours and finishes that suit it. Flush sash windows are a good choice if you want the look of traditional timber casements.

Do replacement windows need Building Regulations approval?

Yes. In England, replacement windows must comply with Building Regulations. This is normally certified by the installer through a government-authorised scheme, or through your local authority’s building control. We’ll tell you how your installation will be certified before work starts.

My house is listed. Can I still improve my windows?

Usually you’ll need listed building consent to replace windows on a listed building, so check with your local planning authority first. Secondary glazing is often a good alternative, because it leaves the original windows in place. Our Heritage aluminium range is another option where a steel-framed look is appropriate.

How long does it take to fit new windows?

It depends on how many windows you’re replacing and the condition of the openings. We’ll give you a realistic timescale with your quote, and let you know what to expect on the day.

More questions and answers
A window divided into small panes by black glazing bars, looking onto green leaves

Get in touch

Tell us what you have in mind and we’ll arrange a free quote.

A tall white sliding sash window with trees beyond

Ready when you are

info@siglazingsolutions.co.uk07549 634032Get a free quote

Leamington Spa, Warwick and across Warwickshire.