I-Tec Secure Logo Latest

I-Tec Features
Include:

  • Security for your home
  • Easy cleaning through innovative design
  • Unlimited adjustment possibilities despite high security class
  • Concealed closing parts maintain sleek appearance
  • End users feel safe through I-tec Locking

Internorm’s I-tec Locking renders levering of windows practically impossible. The specially designed lay-out of flaps instead of pegs which press towards the inside of the frame when locking, facilitates this and therefore works much better as security protection when compared with conventional locking systems.

Nowadays, an excellent standard of security in for windows and doors is essential, whatever the commercial project or application. We have integrated the innovative I-tec Locking already as standard in part of our commercial uPVC-aluminium product range.

Security certification, explained

There are several differentiated window security levels: in basic security, the window is locked with a peg. In class RC1N, windows are locked on all four corners. In the highest security class RC2N, which includes our I-tec Locking windows, security is ensured with all around locking flaps and these windows therefore are the best protected! As a result, as standard, Internorm windows and doors adhere to PAS 24 and Secured by Design regulations for UK security.

Windows Available With I-Tec Locking

Our uPVC aluminium windows feature I-Tec Locking. Browse our range below for more information.

KF 310

uPVC / Aluminium

Homepure KF310 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

up to RC1N, RC2

Homesoft KF310 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

up to RC1N, RC2

Studio KF310 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

up to RC1N, RC2

KF 320

uPVC / Aluminium

Studio KF310 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,65

Internorm Sonic Icon

Sound Reduction (in dB)

35 - 45

Internorm Security Icon

Security

up to RC1N, RC2

KF 410

uPVC / Aluminium

Homepure KF410 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

up to RC1N, RC2

Homesoft KF410 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

up to RC1N, RC2

ambiente KF410 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

up to RC1N, RC2

Studio KF410 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

up to RC1N, RC2

KV 440

uPVC / Aluminium

Homepure KV440 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

up to RC1N, RC2

Homesoft KV440 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

up to RC1N, RC2

Ambiente KV440 Internorm Profile
Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

up to RC1N, RC2

KF 310 - uPVC Aluminium Profile

The KF 310 is part of our uPVC-aluminium window and door range here at Internorm. The KF 310 has fantastic commercial application, delivering sleek, versatile aesthetics while performing to a leading standard.

Coming with a multi chambered frame and discrete, secure hardware, the KF 310 is a leading system among our uPVC and uPVC-aluminium systems here at Internorm.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 310 window costs
kf 310 window costs
Internorm KF 310 Ambiente

    Dimensions (in mm)

  • Frame construction depth 74
  • View width frame/sash 107
  • View width flying mullion (2 sashes) 119
  • View width transom/mullion (2 sashes) 170

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

KF 310 - uPVC Profile

The KF 310 is one of the core offerings of Internorm’s commercial product range. A slim uPVC window and door profile with a 71mm construction depth, these high performance systems deliver sleek aesthetics for a variety of different applications.

Also available with an aluminium clad uPVC upgrade, the KF 310 is thermally retentive and secure, while also coming with a rounded edge design and a range of customisation.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

KF 310 Window Supply
KF 310 Window Supply
kf 310 upvc commercial windows
kf 410 flush casement windows

    Dimensions (in mm)

  • Frame construction depth 71
  • View width frame/sash 107
  • View width flying mullion (2 sashes) 119
  • View width transom/mullion (2 sashes) 170

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding Window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Light grey
  • Georgian/feature bars

KF 410 - uPVC Aluminium Profile

The KF 410 is a contemporary, versatile uPVC profile compatible as both a window and a door. With a square edged design that complements our Home Pure style, this system is visually appealing for all end users and is fantastic for a multitude of commercial projects.

As with our uPVC-aluminium clad KF 410 variant, the uPVC KF 410 comes with a range of I-tec innovations, and performs to an exemplary standard. Compared with the standard uPVC window on the market, Internorm’s stands head and shoulders above the competition.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 410 internorm windows
kf 410 internorm windows
KF 410 Windows
kf 410 flush casement windows

    Dimensions (in mm)

  • Frame construction depth 90
  • View width frame/sash 113
  • View width flying mullion (2 sashes) 133
  • View width transom/mullion (2 sashes) 187

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Light grey

KF 320 – uPVC Aluminium Profile

The KF320 uPVC-aluminium system is a unique, stunning window delivering versatile commercial application. All styles of housing and building can benefit from the sleek, frameless glass design that sets these windows apart from the rest of the Internorm KF range.

With a slim, 74mm construction depth and full customisation, these windows are sure to be eye-catching and visually appealing for the end user whilst delivering the same exemplary standards of thermal retention and security.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,65

Internorm Sonic Icon

Sound Reduction (in dB)

35 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 310 window costs
kf 310 window costs
Internorm KF 310 Ambiente
KF 320 Window Supply Prices

    Dimension (in mm)

  • Frame construction depth 71
  • View width frame/sash 97
  • View width flying mullion (2 sashes) 100
  • View width transom/mullion (2 sashes) 154

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Light Grey

KF 320 – uPVC Profile

The KF 320 uPVC system is a sleek, flush fitting profile designed in our Studio style. Capable of being manufactured into a range of window and door variants, the KF 320 is the perfect solution for a wide range of commercial applications.

With a slim 71mm frame depth and advanced features, the KF 320 delivers a great all-round performance for a flush fitting uPVC window. The design of the KF 320 can also be applied to an aluminium clad uPVC profile.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,65

Internorm Sonic Icon

Sound Reduction (in dB)

35 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 310 window costs
kf 310 window costs
Internorm KF 310 Ambiente
KF 320 Window Supply Prices

    Dimension (in mm)

  • Frame construction depth 71
  • View width frame/sash 97
  • View width flying mullion (2 sashes) 100
  • View width transom/mullion (2 sashes) 154

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Light grey

KF 310 – uPVC-Aluminium profile

The KF 310 is part of our uPVC-aluminium window and door range here at Internorm. The KF 310 has fantastic commercial application, delivering sleek, versatile aesthetics while performing to a leading standard.

Coming with a multi chambered frame and discrete, secure hardware, the KF 310 is a leading system among our uPVC and uPVC-aluminium systems here at Internorm.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,69

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 310 window costs
kf 310 window costs
Internorm KF 310 Ambiente
KF 320 Window Supply Prices

    Dimension (in mm)

  • Frame construction depth 71
  • View width frame/sash 97
  • View width flying mullion (2 sashes) 100
  • View width transom/mullion (2 sashes) 154

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

KF 320 – uPVC-Aluminium profile

The KF320 uPVC-aluminium system is a unique, stunning window delivering versatile commercial application. All styles of housing and building can benefit from the sleek, frameless glass design that sets these windows apart from the rest of the Internorm KF range.

With a slim, 74mm construction depth and full customisation, these windows are sure to be eye-catching and visually appealing for the end user whilst delivering the same exemplary standards of thermal retention and security.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,65

Internorm Sonic Icon

Sound Reduction (in dB)

35 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 410 internorm windows
kf 410 internorm windows
kf 410 window prices
KF 320 Window Supply Prices

    Dimension (in mm)

  • Frame construction depth 71
  • View width frame/sash 97
  • View width flying mullion (2 sashes) 100
  • View width transom/mullion (2 sashes) 154

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

KF 410 – uPVC profile

The KF 410 is a contemporary, versatile uPVC profile compatible as both a window and a door. With a square edged design that complements our Home Pure style, this system is visually appealing for all end users and is fantastic for a multitude of commercial projects.

As with our uPVC-aluminium clad KF 410 variant, the uPVC KF 410 comes with a range of I-tec innovations, and performs to an exemplary standard. Compared with the standard uPVC window on the market, Internorm’s stands head and shoulders above the competition.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 410 internorm windows
kf 410 internorm windows
kf 410 windows with insulating granulate
kf 410 flush casement windows

    Dimension (in mm)

  • Frame construction depth 90
  • View width frame/sash 113
  • View width flying mullion (2 sashes) 133
  • View width transom/mullion (2 sashes) 187

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding Windows
  • Lockable Doors
  • Sliding Doors
  • Doors with Threshold
  • Outward opening doors

    Gaskets

  • Quanity 3
  • Colour Light Grey

KF 410 – uPVC-Aluminium profile

The KF 410 is part of our core window and door range. Available in a uPVC-aluminium clad profile, the KF 410 provides sleek aesthetics with its 93mm construction depth. All the while, it delivers the comprehensive performance levels you come to expect with an Internorm system.

These windows have stunning commercial application, compatible with any high-end project you may be overseeing. End users can benefit from a range of optional upgrades, including Internorm’s own high specification innovations.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0,62

Internorm Sonic Icon

Sound Reduction (in dB)

34 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

kf 410 internorm windows
kf 410 internorm windows
kf 410 window prices
kf 410 flush casement windows

    Dimension (in mm)

  • Frame construction depth 93
  • View width frame/sash 113
  • View width flying mullion (2 sashes) 133
  • View width transom/mullion (2 sashes) 187

    Opening Versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity3 3
  • Colour Black

KF 440 – uPVC-Aluminium profile

The KV 440 is a uPVC-aluminium window with high functioning, integrated internal blinds. Providing quadruple protection from solar glare, our I-tec Shading systems come in Venetian or Duette variants, catering to different commercial applications when fitted to the KV 440.

Our market leading integral blinds enhance the thermal performance of the windows and aids sound reduction.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.64

Internorm Sonic Icon

Sound Reduction (in dB)

39 – 45

Internorm Security Icon

Security

Secured by Design & PAS 24

KV 440 Sun Protection
KV 440 Sun Protection
KV 440 Integral Blinds
hf 310 timber aluminium windows

    Dimension (in mm)

  • Frame construction depth 93
  • View width frame/sash 118
  • View width flying mullion (2 sashes) 144
  • View width transom/mullion (2 sashes) 198

    Opening Versions

  • Fixed
  • Tilt
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

KF 430 – uPVC-Aluminium profile

Lift-slide doors are an innovation in external door design. Our KS 430 system is a uPVC-aluminium variant of this door. They are perfect for both high-end new build housing and apartment complex projects. These doors have fantastic residential application for end users.

Effortless to operate and sleek in design, the KS 430 lift-slide door delivers the standards of thermal efficiency and security you’d expect with an Internorm system.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.64

Internorm Sonic Icon

Sound Reduction (in dB)

up to 43

Internorm Security Icon

Security

Secured by Design & PAS 24

hf 310 timber aluminium commercial windows
hf 310 timber aluminium commercial windows
hf 310 timber aluminium window and door prices
hf 310 timber aluminium windows

    Dimension (in mm)

  • Frame construction depth 200/203

    Opening Versions

  • Lift/slide doors

    Gaskets

  • Quantity 3

HF 310 – Timber-Aluminium profile

The HF 310 is a high quality, timber-aluminium composite profile that blends versatility with an all round performance. Taking the finest visual benefits of timber and supporting them with the thermally efficient and weatherproof properties of aluminium, these windows provide the best of both worlds.

Serving a wide array of commercial applications, these flush sash windows (or doors) are always well received and enjoyed by end users for decades after the project is complete.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.62

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 46

Internorm Security Icon

Security

Secured by Design & PAS 24

hf 310 timber aluminium commercial windows
hf 310 timber aluminium commercial windows
hf 310 timber aluminium window and door prices
hf 310 timber aluminium windows

    Dimension (in mm)

  • Frame construction depth 85
  • View width frame/sash 114
  • View width flying mullion (2 sashes) 134
  • View width transom/mullion (2 sashes) 173

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

HF 400 – Timber-Aluminium profile

The HF 400 is a timber-aluminium system that provides a well rounded performance and fantastic aesthetics. Slim in design with just a 75mm construction depth, the profile can serve a multitude of purposes with an array of commercial and residential application.

Fitted with two I-tec innovations and customisable to tastes, the elegant HF 400 system is a core part of our timber-aluminium product range.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.70

Internorm Sonic Icon

Sound Reduction (in dB)

35 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

HS 410 Homesoft Windows
HS 410 Homesoft Windows
HF 410 Timber Aluminium Windows
HF 410 Timber Aluminium Window Supply

    Dimension (in mm)

  • Frame construction depth 75
  • View width frame/sash 99
  • View width flying mullion (2 sashes) 106
  • View width transom/mullion (2 sashes) 156

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

HF 410 – Timber-Aluminium profile

The HF 410 is one of the most popular and widely requested systems in our entire timber-aluminium range. Its versatility, customisation and overall performance levels make it perfect for almost any commercial application.

With an 85mm frame depth and a flush Studio profile, both residential and commercial end users can enjoy the eye-catching aesthetics of the HF 410. All the while, they enjoy fantastic thermal retention, acoustic insulation and certified security standards.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.64

Internorm Sonic Icon

Sound Reduction (in dB)

33 - 45

Internorm Security Icon

Security

Secured by Design & PAS 24

HS 410 Homesoft Windows
HS 410 Homesoft Windows
HF 410 Timber Aluminium Windows
HF 410 Timber Aluminium Window Supply

    Dimension (in mm)

  • Frame construction depth 85
  • View width frame/sash 108
  • View width flying mullion (2 sashes) 123
  • View width transom/mullion (2 sashes) 173

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

HF 450 – Timber-Aluminium profile

The HV 450 is a unique timber/aluminium profile, which comes with Internorm’s stunning integral sun protection hardware as standard. It retains many of the core characteristics of an Internorm profile, delivering eye catching aesthetics and offering versatile application.

With an array of benefits and an even wider range of customisation possibilities, the HV 450 is a fantastic option for all commercial projects. However, they are a particularly excellent option for larger, multi-storey complexes where sun protection is of higher priority.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.62

Internorm Sonic Icon

Sound Reduction (in dB)

41 - 46

Internorm Security Icon

Security

Secured by Design & PAS 24

HV 450 Integral Blind Windows
HV 450 Integral Blind Windows
KV 440 Integral Blinds

    Dimension (in mm)

  • Frame construction depth 85
  • View width frame/sash 108
  • View width flying mullion (2 sashes) 123
  • View width transom/mullion (2 sashes) 173

    Opening versions

  • Fixed
  • Turn and turn/tilt
  • Tilt
  • Sliding window
  • Lockable doors
  • Sliding doors
  • Doors with threshold
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

KV 440 – Timber-Aluminium profile

The KV 440 is a uPVC-aluminium window with high functioning, integrated internal blinds. Providing quadruple protection from solar glare, our I-tec Shading systems come in Venetian or Duette variants, catering to different commercial applications when fitted to the KV 440.

Our market leading integral blinds enhance the thermal performance of the windows and aids sound reduction.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.64

Internorm Sonic Icon

Sound Reduction (in dB)

39 – 45 average

Internorm Security Icon

Security

Secured by Design & PAS 24

KV 440 Sun Protection
KV 440 Sun Protection
KV 440 Integral Blinds

    Dimension (in mm)

  • Frame construction depth 93
  • View width frame/sash 118
  • View width flying mullion (2 sashes) 144
  • View width transom/mullion (2 sashes) 198

    Opening Versions

  • Fixed
  • Tilt
  • Outward opening doors

    Gaskets

  • Quantity 3
  • Colour Black

KV 350 – uPVC Aluminium Profile

The KV 350 is a uPVC-aluminium window system that comes with Internorm’s modern sun protection technology. Designed with market leading integral blinds, these systems provide an array of unique benefits for a range of commercial projects and applications.

The KV 350 is largely similar to the KV 440 uPVC-aluminium system, as they both come with I-tec shading. However, the KV 350, available as both a window or door, is manufactured with a slightly slimmer profile. It delivers versatile, visually appealing aesthetics.

Internorm Temperature Icon

Thermal Insulation (in W/m²K)

Uw up to 0.79

Internorm Sonic Icon

Sound Reduction (in dB)

38 – 44 average

Internorm Security Icon

Security

Secured by Design & PAS 24

KV 440 Sun Protection
KV 440 Sun Protection
KV 440 Integral Blinds

    Dimension (in mm)

  • Frame construction depth 74
  • View width frame/sash 112
  • View width flying mullion (2 sashes) 130
  • View width transom/mullion (2 sashes)