Flush Sash Windows

Four Point Installations | Flush Sash Windows

Combining the look of tradition with exceptional thermal efficiency

Flush sash windows earn their namesake by featuring a sash that sits completely flush against the window’s frame to offer an authentic look, reminiscent of timber windows popular in the 19th century. Ideal for period homes situated in conservation areas, our high quality range of flush sash windows combine the performance of modern uPVC with the traditional timber style.

Timber frames typically have a tendency of breaking most homeowner’s budgets, even needing regular maintenance and upkeep to stay looking good. Flush sash windows act as the affordable alternative vintage homes have been craving, being lower in cost and higher in thermal efficiency.

Book showroom visit Get a free quote
Flush Sash Windows
"We needed a new 5 meter sliding door for our kitchen extension and a new front door. I had heard good things about 'Four point installations' and so we decided to go with them. They were competitively priced and the service was excellent throughout the process. I would definitely recommend them."

Esther in Earlsfield, London

View more testimonials

Multiple configurations to ensure a clean look

All of our flush sash windows can be tailored entirely to your needs, available in sculptured profile whilst still maintaining a flush finish on the external face. The option of 28mm double or triple glazing can be applied to guarantee your living space stays well insulated, also providing an extra layer of defence to ward off any potential intruders.

Engineered using the latest technology, achieving a clean traditional look is always achievable despite the window style’s ability to be tailored and configured using a range of colours, hardware, beading and glazing options. However customised, flush sash windows never fail to add a freshness to an already inherently traditional design.

Flush sash window benefits:

  • Vintage visuals with a contemporary finish and performance
  • Optional astragal bars for added authenticity
  • A selection of opening configurations suited to your home
  • 10 year insurance-backed guarantee
  • U-values as low as 1.2 with cost-effective double glazing
  • A more affordable solution than original timber windows
  • Low maintenance and easy to clean

Get in touch

Four Point Installations | Flush Sash Windows

Flush Sash Windows at our

Balham Showroom

Come to our product showroom in South London and see the range of quality flush sash windows we have to offer, alongside many other products and services. View our showroom page to find out more, or book a visit and come see for yourself.

Book showroom visit View showroom page

London based installer with a nationwide reach

Four Point Installations install a wide range of quality home improvements all across the country from our London headquarters, from the southern areas of Bristol to the Northern reaches of Manchester no area needs to miss out on our bespoke services.

Learn more about our nationwide double glazing and installation services and enquire today to find out how we can help add value to your home.

Four Point Installations | London Based Installers

Add value to your home with our fantastic products

Four Point Installations | uPVC and Aluminium Installers

A huge range of materials and glazing options available

Four Point Installations | Balham Showroom

View our quality products at our London showroom

Four Point Installations | Certified Installers

We provide outstanding quality customer service


Based in Earlsfield, London, providing our services nationwide

Four Point Installations | Double Glazing Installers

We are specialists in a huge range of home installations