The Modern uPVC Windows System

ESG Limited offer a wide range of “Tilt and Turn” double glazed windows to fit every situation and every home. Our uPVC windows prices are the affordable solution you are looking for, providing great value for money.

Our vertical sliding uPVC sash windows complement the appearance of any period, town or country home. Traditional design combines all the elegance of timber sash windows with all the benefits of modern double glazed units.

Double glazed units are energy efficient, reducing heat loss, draughts and fuel bills. Make your choice of modern window style and then browse the wide selection of colour and glass options to give your double glazed sash glazing its own individual look with our custom made windows.

  • Durable – Low maintenance PVCu sash window frames never need painting, and avoids the problem of timber frames cracking, warping and sticking. This protects your double-glazing;
  • Custom – You can create your own look with our custom-made windows. With numerous of modern window styles and glass options you can give your home the look you’re after whilst benefiting from quality double glazing;
  • Secure – Latest security features include windows that have multi point locking systems, double locking handles and much, much more;
  • Noise reducing – Noise reducing multi-chambered PVCu frames comes as standard;
  • Bespoke build – Designed individually for your home with modern and traditional styles that are guaranteed for ten years and at an affordable uPVC windows price.
uPVC Windows | Essex | Loughton | ECO Secondary Glazing


  • Colours
  • Styles
  • Black
  • Navy
  • Grey
  • Cream
  • White
  • Gold Oak
  • Cedarwood
  • Dark Red
  • Mint
  • Red
  • Black Handles
  • Gold Handles
  • Silver Handles
  • Chrome Handles
  • White Handles
  • Leaded Style
  • Georgian Style
  • Astragal Style


Quality & Guarantee

Eco Secondary Glazing offer the highest in quality of uPVC windows from standard casements, to flush casement system, French opening windows, vertical sliders and many more. We use one of the highest brands of uPVC profiles. We manufacture and have a high quality control system to ensure all products that leave our factory are of the highest of standard. All installation are Fensa certified and We also give a 10 year guarantee on all installations by Eco Secondary Glazing as well as a 10 year insurance backed guarantee from the GGFI.

Energy Saving

Eco Secondary Glazing use Liniar’s EnergyPlus range for unbeatable thermal efficiency

We use six-chambered EnergyPlus profile which offers unparalleled results and enables cost efficient double glazing to be used, achieving similar U-values and energy ratings to more expensive triple glazed windows with other systems.

Designed to optimise thermal performance without the need for costly thermal inserts, Liniar EnergyPlus is an integral part of the 100% lead free Liniar system, interchangeable with all existing profiles and fully compatible with existing accessories and hardware.

Simulations show that Liniar EnergyPlus can achieve a window energy rating of A++ with ease. It can also achieve an ‘A’ rating with normal float glass on the outer pane rather than the more expensive low-iron glass required with other systems.

Liniar’s EnergyPlus is a superb range of products, benefiting from being the most thermally efficient products of their type on the market.

Installation Lead Time

At Eco Secondary Glazing we like to offer a quick quoting time and lead time in supplying quotes for supply only as well as supply and install, we aim to quote within 48 hours and supply and delivery time we aim to supply within 1 week of order depending on volume of order and glass spec we can guarantee a no longer lead time then 2 weeks maximum. We also offer free site visits for quotations and advice.


At Eco Secondary Glazing we use the highest security yale multi point locking system as well as a variety of glazing options, from double glazed to triple glazed. We also off the upgrade of laminated security glass on all doors as well as low ground level windows for added security given you the confidence of having a safer home.

Tilt and Turn windows: “Synseal” Window Systems

The contemporary style with improved light intake and fresh air to let the summer into your home. With high-performance and superb insulation for the cold periods, combined with the simple ’ tilt and turn windows’ opening system, this style provides you with a modern window that is extremely simple to clean, both on the inside and the outside.

  • Easy to operate modern uPVC windows;
  • Improved ventilation;
  • Safe & secure with limited opening;
  • Easy to clean;
  • Tilt and turn windows, unlike most standard windows, opens inwards instead of outwards meaning higher security for children;
  • Inward opening means easier to clean without the pain of leaning out of the window.
  • Limited opening means safety for small children and limits burglaries and strangers easily entering your property;
  • Vertical sliders Upvc.

The elegant conservation grade vertical sliding PVCu sash window from Synseal provides all the benefits of period charm while retaining the high technology of PVCu at a cost-effective price.

  • NOW available with run through sash horns;
  • 9 colour schemes available including the new Irish Oak;
  • Energy Saving Trust recommended product;
  • Period vertical sliding uPVC sash windows look;
  • High energy efficiency;
  • Frames designed for high security;
  • High quality hardware;
  • Multi-tilt opening for ease of maintenance;
  • Affordable uPVC windows cost.
Interested in this product, we'll beat anyone's prices Get a free quote