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Replacement Windows

South Lakes Windows Ltd supplies and installs high-quality replacement windows for homes across Cumbria, the South Lakes, North Lancashire and adjoining parts of Yorkshire. Whether your existing windows are becoming difficult to operate, letting in draughts, suffering from failed glazing or simply looking tired, replacing them provides an opportunity to improve the comfort, security and appearance of your home.

Our replacement window range includes UPVC, timber and aluminium windows, with styles available for modern houses, traditional cottages, period homes and properties within conservation areas. Every replacement window is made to measure for your property. Our team provides a complete service, from the initial survey and advice through to removal of your existing windows and professional installation of the new frames.

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When Should You Consider Replacement Windows?

Windows can remain serviceable for many years, but their performance can gradually decline. Problems with frames, glazing, seals and hardware can eventually make replacement a better option than continued repairs. Draughts around closed windows are one common warning sign. If seals or frames have deteriorated, cold outside air can enter the room while heated air escapes. Windows that stick, fail to close correctly or have damaged locking mechanisms may also need attention.

Condensation between the panes of double glazing usually indicates that the sealed glazing unit has failed. In some circumstances the glass unit alone can be replaced, but widespread problems across older windows may make complete replacement worth considering. Older windows may also fall well behind modern standards for thermal performance and security. Replacing them allows homeowners to consider the whole window system, including frames, glazing, seals, locks and ventilation.

Appearance is another reason for replacement. New windows can update the exterior of a property or reproduce traditional details that may have been lost during an earlier renovation.

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South Lakes Windows offers several frame materials because the right replacement window depends on the property.

UPVC replacement windows are widely used because they provide good thermal performance with relatively low maintenance requirements. Modern UPVC is available in far more than standard white. Woodgrain finishes, traditional shades and contemporary colours allow the frames to suit a broad range of homes. For period houses, cottages and properties where natural materials are preferred, timber replacement windows provide another choice. We supply Bereco timber window ranges, including options developed for contemporary, traditional and heritage properties. Modern timber frames combine established window styles with double glazing, effective weather seals and current security hardware.

Aluminium replacement windows are particularly suited to homeowners looking for slim profiles and larger glazed areas. Aluminium’s strength allows narrower frame sections to be used in many applications, creating clean lines and broad views. Modern aluminium systems incorporate thermal breaks to improve their insulating performance.

Our team can discuss the advantages of each material and help you choose a replacement based on the requirements of your home.

Replacing your windows does not mean changing the character of your house. In many cases, the most appropriate approach is to reproduce the proportions and appearance of the existing windows while improving their performance.

Casement windows remain a popular option and can be configured with different combinations of fixed, side-hung and top-hung sections. Flush windows provide a flatter external profile and can work particularly well with cottages and traditional properties. Different colours and glazing details can also give flush windows a much more contemporary appearance where required.

We also supply sliding sash windows, including traditional timber and heritage-style UPVC systems. These can provide an appropriate replacement for older vertical sliding sash windows while introducing modern glazing and improved weather sealing. Other options include bay and bow windows, French windows, fixed windows and large picture windows. Existing bay windows can be carefully replaced while retaining their distinctive shape, while fixed glazing can be used to increase natural light or make more of an attractive view.

The window design can then be finished with features such as Georgian bars, astragal bars, leaded glass or alternative glazing specifications where appropriate.

Improving thermal performance is a major consideration for many homeowners replacing old windows.

Modern double glazed replacement windows use two panes of glass separated by a sealed cavity to reduce heat transfer. Low-emissivity glass, insulating gases, modern spacer systems and insulated frames can contribute further to the overall thermal performance of the window. South Lakes Windows can provide A-rated windows and explain relevant energy ratings and U-values when comparing different specifications.

The correct glass can also address requirements beyond insulation. Acoustic glass may help reduce unwanted external noise, while laminated glass can provide additional impact resistance. Obscure glazing is available where privacy is required.

Installation also affects performance. A high specification replacement window needs to be correctly measured, positioned and sealed if it is to provide the expected protection against draughts and weather.

South Lakes Windows operates in an area with a large number of traditional properties, from Lakeland cottages and Victorian terraces to rural homes and historic town centres.

Replacing windows in these buildings often requires greater attention to their original character. Frame proportions, opening styles, glazing bars, colours and materials can all influence the finished appearance. Properties within conservation areas may also be subject to planning restrictions, while listed buildings have additional controls. Homeowners should establish which requirements apply before making changes.

We offer heritage windows, timber windows and traditional sliding sash options that can be considered for sensitive projects. Our team can help you identify products that retain traditional window details while providing modern thermal and security performance.

Replacement Window Suppliers and Installers

Choosing the right product is only part of a successful window replacement project. Accurate surveying and professional fitting are essential. South Lakes Windows provides a complete replacement window supply and installation service. We start by inspecting your existing windows and measuring each opening. We can then discuss the frame material, window style, colour, glazing and hardware before preparing a specification for your property.

Once your new windows have been manufactured, our experienced installers remove the old frames and fit the replacements. Care is taken around existing plasterwork, stonework and finishes, with each window correctly positioned and sealed.

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    Happy Customers All Across Our Region

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    We work with homeowners in towns and villages across the region, including:

    Cumbria: Barrow-in-Furness, Dalton in Furness, Ulverston, Broughton-in-Furness, Penrith, Keswick, Grasmere, Ambleside, Windermere, Coniston, Hawkshead, Kendal, Natland, Staveley, Tebay, Sedbergh, Arnside, Allithwaite, Grange-over-Sands, Cartmel, Lindale, Levens, Milnthorpe, Heversham, Holme, Witherslack, Dent, Cark and Flookburgh, Newby Bridge.

    Lancashire: Preston, Lancaster, Garstang, Morecambe, Heysham, Clitheroe, Ribchester, Poulton-le-Fylde.

    North Yorkshire & Border Areas: Settle, Ingleton, Kirkby Lonsdale, Burton-in-Kendal, Burton in Lonsdale, Bentham.

    If you are searching for a reliable replacement window company to supply and fit new windows for your home, speak to South Lakes Windows Ltd.

    Contact South Lakes Windows Ltd today to arrange a home survey and request a no-obligation quotation for your replacement windows.