Ventrolla Perimeter Sealing System (VPSS)
Our award-winning draught-proofing technology is typically fitted to replacement windows as standard and can be discreetly added to your existing windows, preserving their character.
Our helpful brochure explains all about our timber restoration and replacement services.
As heritage specialists, Ventrolla is obsessed with restoring heritage timber windows and doors, and has been for over 40 years.
We share a deep passion for preserving heritage, combining exceptional craftsmanship, attention to detail, and decades of experience.
Working with some of the most discerning heritage property homeowners and retrofit architects, contractors, and surveyors on their restoration projects.
Our helpful brochure explains all about our timber restoration and replacement services.
With nationwide coverage, you always benefit from local British craftsmanship.
Give your heritage building the craftsmanship it deserves.
Our helpful brochure explains all about our timber restoration and replacement services.
Ensuring seamless and efficient execution for commercial projects.
Working with some of the most discerning heritage property homeowners and retrofit architects, contractors, and surveyors on their restoration projects.
Sash windows
Each window features innovative draught-proofing technology as standard. By selecting only premium, responsibly sourced hardwoods, softwoods, and Accoya® timbers, as well as advanced anti-stain primers, we guarantee our joinery for ten years.
Benefits
Our award-winning draught-proofing technology is typically fitted to replacement windows as standard and can be discreetly added to your existing windows, preserving their character.
Our exclusive Sash Removal System offers effortless removal of both upper and lower sashes, ensuring frictionless maintenance for both restored and newly crafted windows.
Meticulousness is in our nature, so our superior ironmongery is hand-forged using traditional methods in a range of finishes from polished brass Teardrop fasteners to antique brass Curly Tail stays and chrome plate Bulb End fasteners to satin nickel Reeded fasteners. Adding authentic character and charm is easy with Ventrolla.
Planning advisory
Projects
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When the timber windows of 50 heritage properties began to show inevitable signs of ageing, such as rot and draughts, Bournville Village Trust turned to Ventrolla to sympathetically restore and renovate each window to its former glory.
For over a century, King Edward VI Handsworth School in Birmingham has stood as a symbol of educational excellence and architectural grandeur. Its 73 stately sash windows have long framed the school’s vibrant learning environment. However, time had diminished the windows’ original splendour, and the building failed to meet modern efficiency standards.
With a vision in mind but little more than the skeleton of a building, homeowners Louis and Haley turned to Ventrolla to bring their timber sash windows back to life during their extensive renovation project.
For Mr. and Mrs. Anderson, the windows and doors in their beautiful Grade II listed home needed to balance functionality with their passion for heritage preservation.
Chorlton House is a stunning five-storey Edwardian semi-detached home that beautifully marries original features with Scandinavian inspiration
Fifteen timber sash windows. Each combining traditional craftsmanship with modern functionality while preserving the original features.
On Nuttall Street in Hackney stands the venerable St Leonard’s Hospital, a Grade II listed building steeped in rich heritage. Our project was to breathe new life into 160 of its distinguished sash windows, each a silent witness to the hospital’s heroic past.
FREQUENTLY ASKED QUESTIONS
With proper maintenance, our restoration work is designed to last for many years. We also provide a 10 year guarantee for peace of mind.
Yes, painting can be included as part of the renovation process, depending on your area, upon request.
Whenever possible, we use sustainable and ethically sourced materials.
Yes! By repairing and upgrading existing windows instead of replacing them, we reduce waste and preserve resources.
Costs vary depending on the window’s size, condition, and specific needs. A detailed quote is provided after an initial consultation.
No, our renovation and draught-proofing system enhances energy efficiency without the need for replacement.
The VPSS is our patented draught-proofing system that reduces noise, prevents draughts, and improves energy efficiency while preserving original window character.
Yes. We often work on listed properties and those within conservation areas and work closely with conservation and planning officers, English Heritage, Historic England, Historic Scotland and Cadw.
Where possible we do all work in situ and take the sashes out from the inside of the property. Because of this, we ask that the rooms we will be working in are cleared, and we will dust sheet all furnishings. If scaffolding is necessary, i.e. there is limited access or for larger commercial projects, then we would always discuss this with you in advance of the order being placed.
The main way you can combat a condensation problem is to further ventilate your home (i.e. open your windows from time to time). The moisture in your home is caused by heating, bodies etc. and it settles on the nearest cold surface – usually your windows. Double Glazing units will be slightly less cold and therefore you may notice slightly less condensation, however, your home will also be better insulated, thus more moisture may be contained within your home.
For new joinery we use a hardwood, usually Sapele or Accoya, though we can use other woods if specified. Please ask your Surveyor or see your detailed quotation for further information on the recommended materials.
The main complaints we hear about are draughty, rattling windows. Our draught proofing system closes the gap around the sashes; eliminating draughts, rattles and reducing dust ingress and heat loss.
This is not usually necessary, however, if renovation is not a viable option we can supply complete new timber windows that will match the originals.
This depends entirely upon what type of window you have, however we have developed a service that will more than likely meet your requirements, namely by replacing your existing moving sashes with new, slim double glazed (or even vacuum glazed) replacements.
The time taken will vary depending on the survey result. Typically we work to renovate one window per day, although this can be adjusted to suit your requirements.
Get in touch
For a complimentary consultation, condition report, and estimate – or for bespoke advice or brochure requests – please get in touch: