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Contemporary Windows

Aluminium Contemporary Windows

Modern Windows-
Industry Leading U-Values

Aluminium Contemporary window systems

Ideal for projects where planning or design requires the installation of sympathetic materials, our 58BW ST HI Steel Replacement Window System provides the look of steel with the benefits of aluminium. Designed to replace and complement existing steel windows, the range has been specifically developed for use on listed buildings, warehouses and similar buildings, where steel windows have always traditionally been fitted.

Available in a wide range of styles including Top Hung, Side Hung, Fixed Light and French Casement, the system cleverly replicates the narrow sight lines associated with steel windows whilst providing superior performance and security. The system also includes hardware that is sympathetic to traditional steel window designs.

Rhino Aluminium Optio 58BW ST HI Window Systems

Design Features

  • Slim sightlines to match existing steel windows
  • Internally and externally beaded for ease of site glazing on high-rise applications
  • Unique polyamide thermal break design to improve performance
  • Integrated deep head profiles for ease of trickle ventilation
  • Accommodates standard hardware including friction stays and shoot bolt locking
  • Certified under the Secured By Design scheme
  • Ideal for Heritage, Listed Buildings and steel window replacements


  • Accommodates up to 32mm glazing units for thermal and acoustic performance
  • Casement clips available for easy fit and removal of dummy vents
  • Dedicated fixing straps for ease of installation
  • Four different sash profiles to acheive design and planning permission requirements
  • Available in single or dual colour polyester powder coating, texture and anodised finishes

Supply Only Service

Rhino Aluminium are excited to announce that we are one of a small number of fabricators in the UK able to offer the Optio 58BW ST HI Window system on a Supply Only basis. We work extremely hard to ensure that this system is delivered on time and right first time, so why not give us a call to discuss how we can help you with your project? Telephone: 01843 446679

Secure By Design System

Our Aluminium Bifold doors have gone through and passed the Official Police Security Initiative referred to by the industry as Secure by Design (SBD). This certification is given to systems which meet and exceed the level of security required by the OPSI (the official UK Police flagship initiative). The purpose of SBD is to ensure that UK homes fitted with products that meet this standard are more secure and reduce the risk of burglary.

Connecting Domestic Customers with local Contemporary Window Installers

We can connect customers with a local approved installer, providing the best service as well as a huge cost saving. Rhino have a network of installation companies that have already been approved by us, each of these installers have proven they are able to carry out the installation of our products using the methods we insist on. The end customer is able to purchase the products at a great manufacturers price, then pay the installer directly for the fit. This option means the customer still receives the full manufactures guarantee as well as the full FENSA registration guarantee for the installation. On average this option save the customer around 25% on their installed 58BW ST HI Windows.


beautify your home with 58BW aluminium windows

Built to the highest UK standards, the 58BW HI Window System delivers a high performance and cost-effective solution with impressively narrow profiles. Packed with versatile design choices, flexible configurations, and high energy performance, OPTIO 58BW is the window of choice for modern living. Whether your home is a Victorian semi, a country cottage, a Georgian townhouse or a contemporary self-build, with the OPTIO casement window there’ll be a choice for you.

Aesthetics, Designed around you and your home

Packed with versatile design choices, flexible configurations, and high energy performance, the OPTIO 58BW Casement is the window of choice for modern living. Whether your home is a Victorian semi, a country cottage, a Georgian townhouse or a contemporary self-build, with the OPTIO casement window there’ll be a choice for you.


Create your window your way; blend in or stand out with our range of customisations and colours. From a choice of sash styles, openings, configurations and glazing bars, to our AluK colour range specifically designed to bring you the latest in colour and textured finishes, the 58BW Casement range gives your home that extra level of personalisation.



With excellent air, water and wind resistance test results, this window has been designed to keep your home warm and withstand the worst of the British weather. With full PAS 24 accreditation, your new windows will
leave you feeling totally safe as well as stylish. With a selection of styles, we can help you select the one that gives your home the wow factor!


beautifully configured

As with all Rhino aluminium systems, you’ll find an extensive choice of configurations available to choose from. And as ever, all are available in which ever configuration that suits your style, for added homeowner choice.

To ensure total peace of mind, the 58BW Window system has been put through its paces to ensure it conforms to all the latest British Standard and Building Regulations for thermal, security and safety including PAS24.


10 year red

Total Peace of mind

Rhino Aluminium stand by their workmanship

Every Rhino Aluminium window and door product is hand crafted by experts in our dedicated UK aluminium factory, this ensures that the product you recieve will stand the test of time. Our products will function and operate in the same way today as they will long into the future, as well as sustain their elegant and beautiful appearance.

We are so confident about the level of quality that we manufacture, we are delighted to back our products with a no quibble 10 year Manufacturers Guarantee!

A Splash of Colour……

An unlimited choice of colour that’s all yours.

Rhino Aluminium windows and doors are available in a multitude of colours, from our standard range to the full RAL spectrum. Our profiles are powder coated with the highest quality powders, providing you with the peace of mind of a 25 year guarantee. The choice is yours; pick from one of our standard finishes or choose a bespoke finish from more than 500 colours as well as a different colour inside and out.
Standard colours – Anthracite grey RAL 7016 / White Hipca RAL 9910 / Black 9005 – are always available off the shelf at Rhino. Special colours (any other RAL colour) and Dual colour (white inner frame and grey outer frame for example) do carry a lead time of 5-6 weeks with an additional cost. Please contact the office to discuss this in detail.


Looking for other Aluminium

Window Types?

Rhino Aluminium offer completely bespoke products, tailored to your size, colour scheme, finish and accessory requirements. The types of Windows that Rhino are able to manufacture include Chamfered Windows, Heritage Windows, Bay Windows, Contemporary Windows.

Contemporary WINDOWS

Heritage Windows

Shaped & Fixed Windows

Flush Style

Tilt Before Turn Windows

stratus Roof Light

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