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How much does it cost? How long will it take? …. here’s a handy list of frequently asked questions to help you decide which of my services is right for you. If you need further assistance, please call me, James Egan on 07849 125276 or email


Where can I find out more about renovation costs, and sash window prices?

Here at South West Sash Windows I offer a free, no obligation survey. As a sole trader I don’t employ salesmen or women. If you would like a professional and honest survey of your windows, please either email or call me, James Egan, on 07849 125276 to arrange a convenient time.

What does South West Sash Windows offer?

South West Sash Windows offers a two part service to renovate and performance upgrade original timber sliding sash windows. Some casement windows and doors may be suitable for draught proofing. Find out more:
Part 1 – Renovation Part
Part 2 – Performance Upgrade

What are the benefits of the Perimeter Sealing System?

There are numerous benefits of the Perimeter Sealing System:

  • Elimination of draughts.
  • Eradicates rattles.
  • Can help noise control.
  • Dust ingress minimised.
  • Comfort levels maximised.
  • Energy efficiency improved.
  • Help reduce your energy bills.
  • 5 year guarantee.
How does the Perimeter Sealing System improve comfort levels?

Typically a sliding sash window has gaps of 3mm around the sashes to make it operate. In an average sized window these gaps are equivalent to a hole nearly six inches square. This can cause:

  • Draughts.
  • Rattles.
  • Dust Ingress.
  • Excessive air changes in the room.
  • Loss of heat.
  • Inefficient use of energy.
  • Difficulty in maintaining comfortable room temperature.

The Perimeter Sealing System eliminates gaps so room temperature is controlled as Air Changes and Infiltration are reduced.

Will noise levels be reduced?

Noise is very subjective and any reduction will depend upon numerous factors. Whilst the Perimeter Sealing System can provide a positive impact on noise reduction, this should be viewed as an added benefit rather than as a solution to a particular noise control problem.

However, by replacing the 3mm air gap in your sash window with draught proofing pile, the impact the Perimeter Sealing System can provide on noise becomes obvious.

Should I replace my existing timber windows with new timber windows?

Usually this is not necessary, as timber windows are often perceived to be in a much worse condition than they actually are on closer inspection. In the majority of cases the timber in an original window can be retained. Replacement is only suggested in the rare cases where it is considered the more economic alternative.

Where wood needs repair I can apply a unique two-part epoxy resin wood repair system, TimbaBuild, which completely bonds with the parent wood and restores the original strength to tenon joints. This can also fill in cavities in sills, and act as a powerful adhesive.

Is it possible to install double glazing into my original sash windows?

In most cases the rebate is not wide enough in a period window to accept two panes of thick glass, plus the gap between them.

There is also the issue of extra weight to the window meaning more weight has to be added to balance the window and often there is not enough room in the sash box to accommodate these extra weights. It is worth noting that the need for double glazing is greatly reduced with the use of the unique Perimeter Sealing System.

The Perimeter Sealing System is a draught proofing system that seals the gaps found around the sashes and frames, through which the draughts, rattles, dust and noise come through the window.

Because of all these varying factors, each case has to be treated individually and I therefore offer a free no-obligation survey and quotation for your windows.


Why shouldn't I replace my windows with plastic alternatives?

When considering replacing period timber windows with modern uPVC alternatives, we need to consider the impact on our environment. Extensive research has been undertaken by many to look at the energy cost of replacement windows.

Research conducted by RICS’ Building Cost Information service (BCIS) formed part of RICS’ response to the Governments UK Housing Green Paper, gives the facts below on replacement uPVC.

“Payback times for Energy Performance Certificate (EPC) energy improvements, on an average three bedroom terraced house, range from 5 years for cavity wall insulation, to 208 years for solar heating.

Alarmingly, the next most viable energy improvement is loft insulation which will take homeowners 13 years before they begin to notice any real cost savings. On average people spend 16 years living in one property, which makes the EPC energy saving measures financially unattractive options for over half of all homeowners. Other common energy saving measures include double glazing (124 years pay back), boiler replacement (38 years pay back), and under-floor insulation (61 years pay back)”.

The clear message is that if I am to advise customers of such energy saving measures, we must all be aware of where the facts and figures derive from and therefore what their agenda is.

However, often the most important issue for property owners centres around cost implications, and most often renovating existing materials is more cost effective for the customer than complete replacement.

In addition, modern uPVC windows can often have problems of their own, including:

  • Breakdown of the sealing gaskets, allowing water ingress and condensation between panes.
  • The probability of warping and discolouration and the breakdown of locks, catches and hinges.

Whereas original timber windows:

  • Are made from seasoned wood by skilled craftsmen.
  • Have usually withstood centuries of wear and will continue to outlive modern substitutes made from inferior materials.

Note: Properties within Conservation Areas may have difficulty with planning permission when replacing period windows with uPVC.

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