Double Glazed Sash Windows

DOUBLE GLAZED SASH WINDOWS
Energy efficient yet packed with traditional charm, our industry-leading double glazing for sash windows lets you have it all. We’ve designed a slim unit that performs just like those found in uPVC windows, yet it retains the original profile and beauty of a timber sash.

DOUBLE GLAZED SASH WINDOWS

Double glazed sash windows allow you to retain the traditional charm and beauty of your timber windows while also benefitting from modern energy performance. We offer two double glazed sash window solutions; replacement slimline timber secondary glazing installed into your existing sash box (window frame) and completely new double glazed windows.

Whether you opt for replacement sashes or new windows, our expert workshop will tailor-make your units and incorporate our unique Ventrolla Perimeter Sealing System (VPSS), designed to virtually eliminate draughts, leaks and rattles.

BOOK YOUR free, no obligation, SURVEY & QUOTE

No pressure, no hard sell. Our friendly surveyors won’t spend long in your home and will send you a quote shortly after the visit.

To help us move on with your enquiry quickly & thoroughly please answer the following questions:

WHY CHOOSE US?

We’re consistently rated ‘Excellent’ by our amazing customers

ENERGY EFFICIENT SASH DOUBLE GLAZING

We’ve developed a modern sash window that not only looks beautiful, but is drastically more energy efficient.

REDUCE COSTS & DISRUPTION TO YOUR HOME

Replacement sashes help to minimise the disruption and cost of redecorating - reducing the overall cost of the work.

TRUSTED BY HOMEOWNERS FOR OVER 35 YEARS

All of our new double glazed sash windows comply with Part L of the Building Regulations.

BENEFITS OF Double Glazing FOR SASH WINDOWS

  • Reduced energy costs
  • Up to 30% improvement in energy efficiency
  • Slim discreet double glazed sashes
  • Easy future maintenance
  • 5 Year Guarantee

OUR SASH DOUBLE GLAZING SPECIFICATION

Replacement Sashes Double glazing specification

Slim 14mm (4/6/4) double glazed units, Planitherm Total+ glass (outer pane) and krypton filled cavity. Centre Pane U-Value of 1.5 Wm²K and Total Window U-Value of 1.8 Wm²K

New Window Double glazing specification

Slim 16mm (4/8/4) double glazed units, Planitherm Total+ glass (outer pane) and krypton filled cavity. Centre Pane U-Value of 1.2 Wm²K and Total Window U-Value of 1.5 Wm²K

Draught proofing

Our draught proofing system, the Ventrolla Perimeter Sealing System (VPSS) is fitted on all new joinery, as standard

Energy efficiencies

Reduced energy costs and up to 30% improvement in energy efficiency thanks to the same draught-proofing, Ventrolla Perimeter Sealing System (VPSS) used on our single pane windows

Compliance

Complies with Part L of the Building Regulations, although it's worth noting that replacement sashes (not full new windows) is outside of Building Control

DESIGNED FOR peace of mind

Whether it’s our 5 year guarantee or the fact that both our replacement and new double glazed sash windows can withstand 71 mph winds, Ventrolla’s solutions are designed to delight. What’s more, our new double glazed windows come with a FENSA certificate for added peace of mind.