Reduce draughts, quieten unwanted noise and keep your home warm without replacing your existing windows by fitting Poplar’s secondary glazing. We’ve manufactured secondary double glazing for 50 years and can match it to your existing windows to unobtrusively add comfort to your home. Perfect for listed buildings!

If you want the benefits of double glazing but replacing your windows isn’t an option, secondary double glazing is the perfect choice. Our secondary double glazing has the following benefits:

  • Fits seamlessly over your existing windows
  • Helps to retain warmth
  • Improves sound insulation
  • Removes draughts from your existing windows

It’s a great solution if you live in a listed building or conservation area where replacing windows is more difficult.

Our secondary double glazed windows are available in a number of styles and are designed to match your existing windows, whatever the shape or size. They offer very slim, unobtrusive sight lines on the inside and are virtually invisible on the outside.

Vertical sliding units are perfect if your home has original sliding sash windows, and they can tilt for easy cleaning. If you have horizontally-opening windows, we can install matching sliding units for between two to five casements or, if your home has single opening casement windows, we can make secondary double glazing to match.

Whatever the style, our secondary double glazing windows are inconspicuous and blend effortlessly with your home. As with every Poplar window, our secondary double glazing is bespoke and individually made by our team of skilled craftspeople.