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Are you looking for quality replacement windows, doors or perhaps a new conservatory?

Here at DanGina we only supply and fit the very best quality Formula One Range UK manufactured PVCU products.

The Formula One Range concept is based on over 25 years’ experience in the manufacture of quality products. Using high impact, high performance PVCU manufactured in accordance with ISO 9001: 2008 (the British Standards Quality Assurance System) together with associated security hardware conforming to BS7950 have ensured these products have passed the Association Of Chief Police Officers specified Secure By Design standard.

Satisfaction guaranteed

As an owner-managed business we are approachable, knowledgeable and hands-on. We pride ourselves on delivering superior service levels; we will always go the extra mile to ensure total customer satisfaction.

Flexibility and Choice

With slim-sightlines, an extensive choice colours and finishes and excellent Secured By Design security.

Our windows, doors and conservatories offer thermally-efficient double or triple glazing with ‘A’ energy rating as standard. You home will be warmer and you’ll spend less on heating and cooling bills. Want to upgrade to ‘A++’ rated windows or add enhanced security? Just ask.

Conforming to BS EN 12608:2003, the system ensures excellent energy efficiency.

  • High Performance windows, doors and conservatories
  • Thermally efficient 5 chamber profile
  • Stylish, elegant and stunning looking
  • Flexible styles to suit Traditional and Modern homes
  • Transform the look of your home
  • Improve insulation
  • Reduce noise
  • Low maintenance – throw away that paint brush!
  • Protection from extreme weather
  • Security to “Secure By Design” Standards
  • Create that extra space you have only dreamed of
  • Eco friendly – state of the art recycled re enforcing materials
  • Energy saving glazing – reduce heat loss and greenhouse gas emissions
  • Save on future fuel bills


The quality and design of windows and doors dictates the security of a home. One weak link is all it takes: one-fifth of all UK burglaries are committed by simply accessing an unlocked door or open window, whilst forced doors and windows account for all the rest.

Secured by Design

All Formula One windows and doors use the latest shoot-bolt multipoint locking systems and internal glazing beads offering homeowners total peace of mind. Profile walls are strong and robust, with steel reinforcement at the critical points to increase resistance to attack. Our security commitment ensures that our windows and doors can meet the Police preferred Secured by Design standard.

Window Security

All window security hardware conforms to BS EN 1670:2007, the specification for enhanced security performance. Our security enhancements are also passed by the Association of Chief Police Officers Specification Secure by Design.

Door Security

All doors can be manufactured to the police preferred specification Secured By Design and meet the requirements of PAS24.

The Concept

All our frames are manufactured using high impact, high performance PVCu. Fully sculptured, our profile delivers exceptionally clean and slim sightlines

All frames are fusion welded and NOT screwed together, ensuring better cohesion and corrosion stability. The main profile depth of 70mm with integrated five chambers (front to back) is at the core of the system. All outer frame PVCu walls are approaching 4mm thickness and incorporate two chambers either side of the reinforcement chamber, preventing thermal bridging and providing superb thermal insulation.

PVCu profiles are available in Rosewood, White and Golden Oak as standard and can be produced to give a choice of internal and external finishes. Other colours are available to order, including White and Black finishes

Design highlights and benefits include:

  • Five chamber, 70mm energy efficient design.
  • Internal Glazing Beads for extra security and meets weather tightness standard BS 6375.
  • A low-line PCE Co-Extruded Gasket providing outstanding weather performance whilst complementing the elegant sightlines. Severe weather rating for windows and doors openings and glazing is achieved by double seal using TPE (Themoplastic Elastomer) gaskets, fusion welded at each corner to eliminate shrinkage, to BS 4255-1 and BPF 345/2.
  • Deep drainage furrow.
  • Profile thickness for firm hardware anchoring.
  • Profile specific galvanised steel reinforcement to BS EN 10346:2009.
  • Glass units are “Argon” gas filled super spacer, Warm edge technology double glazed units tested to BS EN1279-2& 3 /BS EN 12150.

Glazing & Efficiency

All Our windows & doors glazed units are Argon gas-filled and benefit from super spacer, warm edge technology.

Our standard double glazed units are ‘A’ rated and tested to BS EN1279-2& 3 / BS EN 12150. They offer a net energy gain of 2KWH/m2/per year to the household.

Our standard window and door glazing specification starts with affordable, efficient ‘A’ rated double- glazed units, whilst upgrade options offer the choice of higher energy efficiency and specialist glazing effects.

Glazing options available include:

  • Upgrades to Triple glazed units to an Energy Rating of ‘A++’
  • Specially coated double or triple-glazing that reduces solar loss/gain
  • Glazing styles including Frosted glass, Etched glass, Stained glass, Georgian bars and Leaded glass.

In very large glazed areas like conservatories, thermal loss and solar gain become particularly important to ensuring comfortable year-round use. So in addition to the 25mm (standard) polycarbonate roof, we offer a 40% thicker 35mm option too.

Thermal performance and Energy Ratings

Rating Value (A-G)

All Formula One windows offer “A” rated performance as standard. Upgrade options can increase this to ‘A+’ or ‘A++’. Building regulations currently stipulate a minimum requirement of “C” (or a U-Value of 1.6 w/m2K).

Thermal Transmittance (U-Value)

This indicates the amount of heat energy transmitted through a door or window, set out in watts per metre2 per degree Kelvin. The lower the U-Value, the less energy is lost, and the more efficient and economical the unit.

Solar Factor (G-Value)

This represents the amount of solar energy that is gained through the window. The higher the value, the more energy gained and the greater the saving.

Effective Air Leakage (L-Value)

This is the amount of air that permeates through the window weather seals, also a contributing factor to the Rating Value above.

Superior service at every stage

First class advice

Choosing to improve your home is exciting. We will be happy to show and explain all the available options and choices in person. In addition, technical support team is on hand to assist with specifying or advising on any project. We’ll make sure that your order and specification is exactly what you need.

Fast, all-inclusive quotes

We personally prepare all quotes. Customers will receive a comprehensive breakdown of the items discussed and technical drawings of each component. This is accompanied by product brochures and a checklist of our accreditations and guarantees. Quotes will usually be sent out within a few days.

Download our range of literature

We have a range of brochures, leaflets and documentation that will help you to understand and appreciate what the Formula One Range of products can do.

Download our PDF Brochures

Modern Living

Technical Brochure

Solidor Brochure

Energy Secure Flyer

Maintenance Handbook