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SGS Window Installations
Alunet

Alunet Systems

Premium aluminium windows and doors

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Alunet is a premium UK aluminium systems supplier specialising in residential windows, bi-folds and patio doors with exceptional finish quality and powder-coat durability. Often specified alongside Smart, Alunet brings additional flexibility on slim profile options and competitive lead times for quality-conscious projects.

Benefits

Why choose Alunet Systems

  • Premium UK-manufactured aluminium systems
  • Exceptional polyester powder-coat finish
  • Slim sightlines and oversize pane capability
  • A+ thermal performance
  • PAS24:2016 accreditation
  • Wide RAL colour palette
  • 10-year manufacturer warranty
Features

Engineered for performance

  • Thermally broken construction
  • Multi-point locking
  • Stainless-steel running hardware
  • Triple-glazing options
  • Slim-frame profiles
Make it yours

Configurator

Mix and match colours, hardware and glass to suit your home.

Colours

Available finishes

Anthracite Grey RAL 7016 Jet Black RAL 9005 Pure White RAL 9010 Slate Grey RAL 7015 Bronze Sage Green RAL 6021
Frame styles

Choose your style

  • Bi-fold doors
  • Sliding patio doors
  • Casement windows
  • Tilt-and-turn windows
  • Fixed lights
  • Aluminium entrance doors
Glass

Glass options

  • Double glazed
  • Triple glazed
  • Acoustic laminated
  • Solar-control
  • Self-cleaning
Hardware

Furniture & hardware

  • Architectural pull handles
  • Recessed handles
  • Smart locking
  • Magnetic catches
Energy efficiency
A+

A+ rated as standard with U-values from 1.2 W/m²K.

Security

Engineered to protect

PAS24:2016 across the range with multi-point locking and laminated glass options.

Customisation

Tailored to your home

Any RAL colour, dual-colour options, slim-frame configurations and full architectural range.

Ideal for

Property suitability

Quality-conscious renovations and new-builds where Smart's lead times are too long or where Alunet's specific profile options suit the architecture better.

Installation

How we fit it

Installed by senior SGS aluminium fitters with manufacturer-specific training.

Common questions

Frequently asked

How secure is a composite door? +
Every door we install is PAS24:2016 accredited and Secured by Design. Combined with a Yale 3-star or Ultion cylinder it represents the highest level of front-door security available on the residential market.
Will it warp or fade in the sun? +
Composite doors are stable across temperature extremes — no warping, no swelling, no shrinking. The colour finishes are GRP-bonded and rated for 25+ years of UK weather.
Can I get a matching back door? +
Yes — we typically supply matching front and back doors as a package, often with a small discount for combined installation.
What's the lead time? +
Most doors are surveyed within a week and manufactured in 2–4 weeks. Installation itself takes a single morning.
Explore the range

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Like the Alunet Systems? Let's talk.

Free home survey across Staffordshire — typically booked within 48 hours.

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