Security Doors.
Quality Guaranteed.
Kirncroft Security Doors have a strict focus on build quality with high-performance hardware fitted as standard. As a result, it is impossible to find better value for money steel doors.
We make our steel security doors in our own factory.
Every door is made in our own purpose-built 10,000m2 manufacturing facility with a 50-point quality control inspection before it ever reaches our customers. So while other companies struggle with processes outside of their control, we guarantee high-quality products by manufacturing in-house.
Strength
1mm (20 gauge) thick galvanised steel door sheet
2mm (14 gauge) thick galvanised steel door frame
1.7mm (16 gauge) thick stainless steel threshold
Our security doors are made from heavy-gauge galvanised steel to prevent rusting and increase their resistance to attack. Low quality, light-gauge steel results in doors lacking strength, resistance to attack, and overall durability.
Security
Security tested to PAS24High security as standard
Anti-drill and anti-snap locking system
Extra secure 10-point locking system designed specifically for our security doors. Tested and performing in the real world since 1999
Other door suppliers often adopt a cheap approach when specifying a locking system. In doing so, they don’t make security and durability a top priority. In continuous development for over 20 years, our 10-point locking system meets the requirements of the real world. Kirncroft security doors are designed and tested to PAS24, reinforcing a high level of security and overall performance.
Durability
Steel Security Doors tested to BS EN 1191 for 50,000 cycles
With a Kirncroft door, you can open, close, lock, and unlock two cycles per day for over 68 years and have the assurance of a door that works properly and efficiently.
Internal construction
Galvanised steel subframe with 4mm (3/16″) round-bar steel mesh
Heavy duty fixing plates for locks, hinges and surface mounted hardware
Injected polyurethane insulation
The internal construction of our steel security doors is such that the components reinforce the door’s strength. For example, using extra-strong reinforcing plates ensures that the screws securing the locks and hinges cannot become loose. In addition, by constructing our security doors with hard-setting injected polyurethane foam, they have integrity beyond just the external steel skin, and the internal structure guarantees strength and durability that will last for years.
Insulation
Door AND frame injected with polyuerethane insulation.
Part L compliant – U value 1.8W/m2K
Other door suppliers often overlook insulation, and they use cheap material to insulate their doors. For example, when used in a steel security door, mineral wool and honeycomb paper insulation often do not meet the requirements for U-values. However, an accredited laboratory has confirmed the U-value of the Kirncroft security door, using the correct method of calculating the door and frame as a complete unit. By using polyurethane insulation, our security doors are both structurally reinforced and meet thermal performance requirements.
Rustproof
Galvanised steel inside and out
Polyurethane insulation seals internal components
Stainless steel threshold
Stainless steel locking rod tubes
304 grade stainless steel hardware
If steel security doors are not properly insulated, they can be prone to rusting from the inside out. Insulation made of mineral wool or honeycomb paper naturally collects moisture. The moisture spreads inside the door and increases the chance of rust. Kirncroft security doors are made from galvanised steel inside and out with polyurethane insulation that seals internal components and stops them from coming into contact with any moisture.
Waterproofing
Fully sealed door, frame and threshold.
Advanced door and frame sealing system.
Having a fully sealed door, frame, and threshold prevents water from entering the internal components of the door and prevents them from rusting from the inside out. With our advanced sealing system, the frames and thresholds stand firm against water ingress. Waterproofing guarantees that your security door continues to provide security even when the weather takes a turn.
Handles
Grade 304 stainless steel handles as standard
DDA & Part M compliantCompliant with disability regulations
Tested to BS EN 1906 for 200,000 cycles
Handles are just as important an aspect of a steel door as the internal components. Other suppliers focus on budget security doors that incorporate low-quality hardware, turning a blind eye to longevity. In contrast, we include Grade 304 stainless steel handles as standard for our doors. In addition, each handle is compliant with regulations and is tested thoroughly before dispatch.
Hinges
304 grade stainless steel fully welded anti-knockout hinges as standard
Tested to BS EN1935 grade 3
Kirncroft steel security doors use hinges with a complete stainless steel welded design, ensuring they can endure the elements and withstand physical attacks.
Fire exit doors
Hardware exclusively fitted at our UK facility
Regarding safety, hardware needs to match regulations and the performance standards required in the UK and Europe. While other companies are focused on mass-production, we focus on what is most important, your safety. All safety hardware is sourced from the UK and fitted at our UK finishing facility by our trained engineers. With personal attention to detail, You can count on our steel security doors to perform when it matters.
Modular Building Specialists
Anti-vandal steel window units
Built-in anti-racking tolerance
Although suitable for a wide range of applications, our products are designed for and have a proven track record in the modular building industry.
2 year warranty
We stand by our products
Kirncroft security doors are built to last, which is why we offer a standard 2-year warranty for all of our products.
Price
The best price on the market
Kirncroft Steel Security Doors offer the best value-for-money in terms of quality and specification. We are a family run business, and we ensure quality in every detail of our products. We pay attention to the details to ensure that your investment will be secure and reliable for many years to come.
Price
The best price on the market
Kirncroft Steel Security Doors offer the best value-for-money in terms of quality and specification. We are a family run business, and we ensure quality in every detail of our products. We pay attention to the details to ensure that your investment will be secure and reliable for many years to come.
4200m2 UK head office, warehouse and door customisation centre
25,000 units in stock
High-quality spare parts on stock
Professional and knowledgeable customer service team
Highly trained and experienced customisation engineers
Our doors opened in 1999, and we have been innovating the way for products made with integrity ever since. Our team has the technical knowledge and years of experience to offer high-quality products with industry-leading support. With outstanding customer service and a company-wide quality control system, we can deliver on our promise of products that are more than just made of steel; they are made with attention to detail and assurance for the best quality and overall customer experience.
FEATURED PRODUCTS
SECURITY DOORS
Kirncroft 10-point locking steel security doors.
SECURITY DOORS
Kirncroft steel security doors are also available with a selected range of fire exit hardware.
WINDOW SHUTTERS
Anti-vandal steel window shutters offer enhanced security for modular building applications.
SECURITY DOORS
Kirncroft 10-point locking steel security doors.
WINDOW SHUTTERS
Anti-vandal steel window shutters offer enhanced security for modular building applications.
Kirncroft Engineering Ltd. Wadworth Hill, Burstwick, Hull, United Kingdom, HU12 9EY
Telephone: +44 (0)1964 671 300
