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British Woodworking Federation
Certificate type
CHAS
Certificate type
ISO 14001 Environmental Management Systems
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ISO 45001 Health and Safety Management
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ISO 9001 Quality Management
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QA Certificate
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Casement timber window renovation and performance upgrade. Draught-proofing and heritage double glazing.
Casement windows, timber windows
Industry-leading wooden window repairs
Preserving the unique heritage and charm of period timber windows really is a priority to us, and with the right care and attention, original timber window frames can provide a lifetime of enjoyment. So, where possible, we will always suggest renovation over replacement via our tried and tested Ventrolla Perimeter Sealing System (VPSSS), while expertly repairing and replacing rotten sections with ease and finesse.
So, if your original timber windows are draughty, rattling, or inefficient, we're sure our industry-leading window renovation services can help bring your timber windows back to life. After all, there’s no denying that timeless timber window frames play a crucial role in defining the character of period building facades and their interiors –
so why should you or your client’s property be any different?
Maintain authentic character & charm with our timber casement window renovations and performance upgrades
Elegant, high-performance timber window repairs
Trusted heritage, nationwide coverage
From one timber window to 100 windows, our unique patented timber repair system is what sets us apart from the rest. Dedicated to making your life more comfortable, our renovation services are guaranteed to deliver the highest levels of insulation, performance, and style no matter the project size or location. Taking care of the entire renovation process from start to finish, our superior timber window repairs and renovations are guaranteed to:
Whether you want to renovate or replace, we can help you with your timber casement window project.
Ventrolla’s two-part process begins with the treatment and renovation of the timber casement window; the second part involves upgrading the performance by draught-proofing the window using the unique Ventrolla Perimeter Sealing System (VPSS). All work is carried out internally where possible, reducing the need for scaffolding.
The Ventrolla Perimeter Sealing System (VPSS) is installed into either the frame of the casement window or the sash itself (depending upon the construction of the casement window). If appropriate, the system can be installed into staff bead around the frame. The pile carrier is routed into the timber giving a permanent fixing point and making the system an integral part of the window.
Ventrolla Wood Repair:
Ventrolla wood repairs are undertaken using Ventrolla VR90, formulated to give long-lasting wood repairs beyond those normally carried out using conventional polyester wood fillers. VR90 is a patented two-part resin system and is designed to impart the original strength to tenon joints, fill gaps/joints and is moulded to match the window profile. It completely bonds with the parent wood and flexes when the wood contracts or expands. To achieve this bond, all decayed wood is removed exposing only sound wood. This is then stabilized using VR90 WS solution which penetrates the wood fibres to attain the permanent anchorage for the subsequently applied VR90 filler.
Ventrolla Perimeter Sealing System (VPSS) performance:
Features and benefits:
Color | Beige Blue Black Bronze Brown |
Finish | Other Brass Chrome Bronze Brushed |
Material | Timber |
Shape | Circle Crescent Diamond Elliptical Hexagon |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Five year |
Uniclass | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Third-party certification | British Board of Agrément (test report number 2756). |
Product performance | |
Weather performance | |
UK exposure category | To BS 6375-1, 1600 Pa. |
Air permeability | To BS EN 12207, Class 3 and BS 6375: 1-2009 (600 Pa) to withstand 71 mph winds. |
Watertightness | To BS 6375-1, Class 2. |
Resistance to wind load | Draught strips tested to BS 7386. |
Environmental | |
Acoustic performance rating | Independently tested and proven to fall within the 6–10 dB noise reduction range.Guidance for specification option: Performance verified by Hanns Tucker Acoustic Engineers. |
Thermal | |
Whole window U-value | 1.2 W/m2K (centre pane value). |
Frame | |
Wood species | Sapele.Accoya. |
Chain of custody | FSC. |
Finish as delivered | Exposed bare wood is painted with white acrylic primer to BS 5082. |
Glazing or infill | |
Standard | Relevant parts of BS EN 1279. |
Hardware | Guidance for specification option: Numerous finishes and colours available, consult manufacturer and insert requirements. |
Operation | |
Type | Manual. |
Ventrolla Perimeter Sealing System (VPSS) location | Frame. Sash. Staff bead. |
Sill replacement | Not required. Required. Guidance for specification option: Replacement sills can be provided to match original profiles. The original bottom section of the box linings is removed and Sill trenches are cut, the frame and mullions are spliced to facilitate a flush and water tight finish. |
Ironmongery | Not required. Replace existing. Guidance for specification option: A wide range of specialist locks and catches are available. |
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | United Kingdom |
Material | Timber |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 0.5 kg CO₂ eq/kg Self declared |
Recyclability | Yes |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
British Woodworking Federation
BWF Certificate of Membership
CHAS
CHAS Certificate of Accreditation
ISO 14001 Environmental Management Systems
ISO 14001:2015 Environmental Management Systems
ISO 45001 Health and Safety Management
OCCUPATIONAL HEALTH & SAFETY MANAGEMENT SYSTEM - ISO 4500
ISO 9001 Quality Management
QUALITY MANAGEMENT SYSTEM - ISO 9001:2015
QA Certificate
Ventrolla on FENSA