Living under the Heathrow flight path or beside a busy South West London road? Learn how the right timber windows can dramatically quieten your home.
If you live in Richmond, Barnes, Putney or Kew, you will know the daily rhythm of aircraft descending towards Heathrow. Add busy roads such as the A3, the South Circular and Upper Richmond Road, and noise becomes one of the biggest complaints we hear from owners of period homes in South West London. The good news is that your windows are usually the weakest point in your home's sound defences, which means they are also the greatest opportunity for improvement.
Why Original Windows Let Noise In
Sound travels through gaps and thin glass. A Victorian sash window with its original single glazing and worn parting beads can have gaps of several millimetres around each sash, and a single pane of 3mm or 4mm glass offers very little resistance to the low rumble of traffic or the roar of a descending aircraft.
This is why simply closing your curtains makes little difference. Until the gaps are sealed and the glazing is upgraded, noise will continue to find its way in.
Step One: Seal the Gaps
Draught proofing is the most cost effective first step. Discreet brush and rubber seals fitted into the sash frames close the gaps around each moving part, and homeowners are often surprised at how much quieter a room feels once the air paths are sealed. As a bonus, draught proofing also cuts heat loss and stops rattling on windy nights.
Step Two: Upgrade the Glazing
Double glazing helps with noise, but the real gains come from using two panes of different thicknesses. When the panes differ, each one dampens a different range of frequencies, which is far more effective against the mixed pitch of aircraft and traffic noise than two identical panes.
Acoustic laminated glass goes further still. A special interlayer bonded between two sheets of glass absorbs sound energy, and a well specified acoustic unit can reduce perceived noise by well over half compared with original single glazing.
What About Conservation Areas?
Many of the noisiest streets in Richmond, Wandsworth and Merton sit within conservation areas, where planners expect replacement windows to match the originals. Happily, acoustic and slimline glazing can be fitted within traditional timber sash profiles, so you can quieten your home without altering its historic appearance. Where planning rules are strictest, secondary glazing fitted inside the original window offers superb sound insulation with no change to the exterior at all.
The Result: A Calmer Home
The combination of sealed frames, acoustic glazing and quality timber joinery transforms how a home feels. Bedrooms facing the road become restful, home offices become easier to concentrate in, and summer evenings in the garden facing rooms feel noticeably more peaceful. If noise is wearing you down, ask us for a survey and we will recommend the right combination for your street, your budget and your property's character.
