27 Jun 2019

Sometimes, it’s possible to draught proof sash windows yourself as a DIY job. Other times, your windows might need more of an overhaul. The draught proofing process will all depend on the issues you are experiencing and the level of refurbishment needed – to help you get an idea, think about the following questions:

  1. Is there a significant gap between your window sash and the box frame, or between the frame and the glazing?
  2. Can you see obvious mould and/or rot on the inside or outside of your window sashes?
  3. Has the noise from outside become more noticeable?
  4. Are any of the panes of glass damaged?
  5. Does the temperature noticeably drop around your windows?

If you answered ‘yes’ to any of these questions, you would benefit from a sash window repair or refurbishment. You can find more details below on what this involves and how it can help you reduce draughts significantly.

If you answered no, consider the following questions:

  1. Are your window sashes less than ten years old?
  2. Have you only just started to feel a small draught?
  3. Are your windows generally in good condition, with no signs of mould or rotting timber?

If you answered yes in this section, it’s possible that you might be able to improve the draught on your own, or you may only need minor alterations from a professional to make your windows more thermally efficient. We will outline some of the ways you can improve thermal efficiency, allowing you to turn down the heating, save energy, save money on your bills – and save the planet too.

Sash window repairs – draught-proofing a sash window that needs an overhaul

Sash windows are designed to be strong and robust but inevitably their condition will deteriorate over time. The good news is that in most cases, you can opt for a sash window repair instead of replacing your windows altogether. Even in the worst-case scenario where windows are in very poor condition, we can often replace just the sash instead of fitting a new box frame as well.

We offer sash window repairs and overhauls on an individual basis, carrying out the work that is needed to upgrade and draught-proof your particular windows. We have a team of skilled carpenters who will repair broken sashes and fix any other issues with your windows to make sure they are thermally efficient. We will carry out a full consultation to work out where your windows might not be performing as well as they should so that we can complete the work to the highest standard. When we carry out repairs or fit new window sashes, we will ensure we use the most advanced, thermally efficient materials that come complete with built-in draughtproofing.

Sash window alterations – draught-proofing a sash window that only needs minor alterations

If your windows are newer and generally in good condition, you will easily be able to improve their thermal efficiency. Here are some of the steps you can take to draught proof your sash windows:

  1. Install a new parting bead. The parting bead is fitted into the box frame, so it might be more difficult for you to replace unaided. A new parting bead can make a big difference to thermal efficiency, ensuring there are no gaps between the window sash and the box frame. Usually a new parting bead will also include a draught seal that you will be able to replace easily in future.
  2. Replace the staff bead. This is an internal trim that is used to keep window sashes in place. It is fitted around the box frame, so an older staff bead that is damaged or getting worn away could be letting in draughts. New staff beads will often have a draught-proof strip in place for even better results.
  3. Replace or install a draught-proof strip. If you have an existing draught-proof strip, this will be very easy for you to remove and replace on your own. Newer staff beads or parting beads usually include a draught seal that should be fully removable, making it simple and cheap to upgrade. A draught seal will help to block out draughts by making sure there are no gaps and the window is well insulated. It might be made from a range of materials, including foam, plastic, bristles or felt. If you need any advice on the process of replacing or installing draught-proof strips, our team will be more than happy to speak to you and offer our expertise. If we install your windows or replace parts, we will talk you through their upkeep and you will have access to documents detailing how your sash windows should be maintained.

Will draught proofing really make much difference?

Yes, draught-proofing sash windows can make an enormous difference to the energy efficiency of your property and, therefore, your general standard of living. If your windows fit badly or are damaged, the air will be changed approximately three times an hour – this means you will be heating up air that is then immediately lost. By improving your sash window condition and completing draughtproofing, you can save money on your energy bills and have a more comfortable property.

Find out more about draughtproofing – have an informal, no obligation chat. Call 020 3582 7621 or fill in our contact form and we will get back to you.