Sash Windows South East | Ventrolla The Sash Window Repair Company


Ventrolla South East provides sash window repair and restoration services throughout the region, covering Portsmouth, Brighton, Eastbourne, Reading, Kent, Sussex, Uxbridge, Chichester, South West London, The Isle of Wight and surrounding areas.

The team at Ventrolla South East work on everything from residential properties to all encompassing commercial projects – all to the fantastically high standards you would expect from a company like Ventrolla.

Ventrolla South East offers a bespoke restoration and repair service for wooden sash windows and casement windows. We also restore timber doors.

Our service centres around maintaining the original charm and character or your windows while upgrading them to perform like a modern uPVC unit in terms of draught proofing, energy efficiency and acoustic performance.

Our renovation service includes the installation of the Ventrolla Perimeter Sealing System which virtually eliminates draughts and our unique Sash Removal System that makes future window maintenance easy and hassle free. We also offer New bespoke wooden windows, Secondary Glazing, Slim Double Glazed Replacement Sashes and new window hardware.

Benefit from a Ventrolla Window Restoration:

  • Sash & Casement Window Repair
  • Draught Proofing for sash & casement windows
  • Secondary Glazing for noise reduction
  • Wooden Double Glazing to prevent heat loss
  • New bespoke replacement timber windows
  • Privacy, Security, Solar control & UV anti-fade window film

We have over 35 years’ experience of working on residential and commercial projects of all sizes, focusing on period properties of Victorian, Georgian, Edwardian and pre-war origin, along with listed buildings and those within conservation areas. Our expert team are on hand to answer all your queries.

Get in touch with Ventrolla, the Period Sash Window Restoration Specialists, for a free no obligation survey and quote. 

Whatever the issues you are facing from your windows. You can rest assured that after one visit from Jim, Simon and their team, you will be looked after by real experts in their field who make your home their total priority.

KINGSTON REGISTRY OFFICE - Sash Window Repair by Ventrolla
"The assessment and quotation process was efficient. The office staff at Henley-on-Thames were always helpful and friendly. The 2 tradesmen who completed my renovation were very skilled, friendly, trustworthy and happy in their work"
Sash Window Repair in London and the South East by Ventrolla
Ventrolla South East | Sash Window Repair
Unit 10, Thamesview Industrial Estate, Henley on Thames, Newton Road, Oxon, RG9 1HG

IT ALL BEGINS WITH A free, no obligation, SURVEY

It’s a very simple process to get your windows just how you want them & the initial stage is a free, no obligation, survey with one of our friendly experts.
It takes up very little of your time and is a no pressure, no hassle, no commitment way for us to give you a tailored quote for work.

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

A selection of completed sash window repair projects in the South East area.


Key Features: Commercial, Grade II Listed, Sash Windows, Education, Renovation, Double Glazing, Ventrolla Perimeter Sealing System, Victorian.

 After the existing windows, dating back to 1862, were given their marching orders due to their poor condition, the timber renovation specialists were drafted in to upgrade the ageing sashes.

As part of a £7.5 million refurbishment across two years, the Grade II listed building, used by the Army Medical Directorate, presented 450 sash windows in dire need of  complete renovation and upgrade due to many years of exposure to the elements.


Key Features: Commercial, Grade II Listed, Sash Windows, Education, Renovation, Ventrolla Perimeter Sealing System (VPSS), Victorian.

 This year pupils at the Royal Grammar School in High Wycombe will be able to celebrate their main building’s 100th birthday draught-free, following renovation by period window specialist Ventrolla.

The school, originally founded from a medieval hospital school in the middle of the 12th century has a special history, receiving a Royal Charter from Queen Elizabeth I in 1562 to become the Royal Grammar School.


Key Features: Commercial, Domestic, Sash Windows, Large Development, Renovation, Door, Georgian. 

Window specialist, Ventrolla, has recently commenced work on the historic Coleherne Court in earls court, south west London, which was once home to Diana, Princess of Wales.

Ventrolla was appointed the project by Coleherne Court Maintenance Fund following a recommendation and, to date, around 20 apartments have had their wooden sash windows and French doors restored by the company.