Aluminium Windows Berkshire: Premium Cortizo and Schuco Installer Guide

Berkshire's premium residential market spans the Royal Borough of Windsor and Maidenhead, Ascot, Bracknell Forest, the Reading conurbation and the rural belt out toward Wokingham and Sandhurst. The mix of property types is wider than most Home Counties: Edwardian villas in Caversham, Arts & Crafts homes in Sunningdale, post-war New Town housing in Bracknell, and architect-led contemporary new builds across the Wentworth-adjacent belt.

For Berkshire homeowners specifying premium aluminium windows in 2026, the question is rarely whether aluminium is the right material. It is which premium brand and which approved installer covers the postcode. This guide explains the Cortizo and Schuco aluminium window range, which system fits which Berkshire property type, and how the installation process works.

Vitrum Solutions covers Berkshire across all postcodes including Ascot (SL5), Maidenhead (SL6), Windsor (SL4), Reading (RG1-RG6, RG30), Bracknell (RG12), Wokingham (RG40, RG41), Sandhurst (GU47) and Newbury (RG14). For the canonical Berkshire location page see our Berkshire installer page.

The Aluminium Window Brands We Install in Berkshire

Vitrum Solutions installs two premium aluminium window systems across Berkshire:

• Cortizo aluminium windows — Cor 70 Hidden Sash for flush-casement aesthetics, plus the wider Cortizo casement range
• Schuco aluminium windows — AWS 70.HI, AWS 70 SC Slimline and AWS 70 Tilt-and-Turn (the Schuco Jansen heritage steel-look range is also available for specific heritage projects on request)

For full Cortizo coverage see our Cortizo brand hub. For Schuco see Schuco brand hub.

Berkshire Property Types and Brand Fit

Ascot (SL5) — Sunningdale, Sunninghill, North Ascot

Ascot's residential market is dominated by substantial detached homes on generous plots, including the Sunningdale-Wentworth-adjacent belt where property values are among the highest in Berkshire. Architect-led new builds are common; large rear extensions with bifold or sliding doors plus aluminium picture windows are the typical glazing schedule.

Brand fit: Cortizo Cor 70 Hidden Sash for flush-casement aesthetics on contemporary new builds, paired with Cortizo Bi-fold Plus Door (110mm reduced central junction) on rear extensions. Schuco AWS 70.HI for projects targeting Passivhaus or low-energy refurbishment certifications.

Maidenhead (SL6) — Town Centre, Cookham, Pinkneys Green, Furze Platt

Maidenhead has experienced significant property growth since the Elizabeth Line opened. The dominant housing stock is 1920s-1950s suburban semi-detached and detached, with significant pockets of Victorian and Edwardian along older roads near the river. Larger detached homes towards Cookham and Pinkneys Green often run substantial garden-facing extensions.

Brand fit: Schuco AWS 70 SC Slimline windows on heritage-conservation properties where minimal frame is wanted alongside double-glazed thermal performance. Cortizo Cor 70 Hidden Sash on the more recent detached stock.

Windsor (SL4) — Town Centre, Eton, Old Windsor

Windsor's residential property is a mix of Georgian and Victorian period homes within the borough's heritage zones, plus larger detached homes on the surrounding residential streets. Conservation Area constraints apply across substantial portions of the town centre.

Brand fit: Heritage uPVC sash and aluminium with split-light bars are the conservation-friendly options. For non-listed contemporary properties outside the Conservation Areas, Cortizo Cor 70 Hidden Sash is the strongest fit on detached homes where the flush-casement aesthetic suits the contemporary infill on otherwise period roads. Schuco AWS 70 Tilt-and-Turn (which combines a tilt-only ventilation position with a turn-open cleaning position) is specified on second-floor and side-facing windows where outside-cleaning access is restricted.

Reading (RG1-RG6, RG30) — Caversham, Earley, Tilehurst, Woodley

Reading's housing is dominated by 1920s-70s suburban semi-detached and detached, with Victorian terraces around the town centre and larger Edwardian villas in Caversham. Lower Earley and Woodley feature 1980s-2000s family housing.

Brand fit: Most Reading installations are full-house Rehau uPVC TOTAL70 casement windows. For aluminium upgrades on the larger Caversham and Lower Earley detached stock, Cortizo Cor 70 Hidden Sash in anthracite (RAL 7016) is the most common spec.

Bracknell (RG12) — Town Centre, Crowthorne, Wokingham, Binfield, Warfield

Bracknell's housing is dominated by 1960s-80s post-war New Town suburban semi-detached and detached homes, with original timber casement or first-generation uPVC windows that have reached end of life. Newer developments around Warfield, Binfield and the regenerated town centre feature 1990s-2010s family homes.

Brand fit: Full-house Rehau uPVC TOTAL70 casement and tilt-and-turn replacements remain the most common Bracknell installation, often paired with a Palladio composite front door upgrade. On larger detached homes in Warfield and Binfield, Cortizo aluminium upgrades start to appear on contemporary rear extensions.

Newbury, Wokingham, Sandhurst

The wider Berkshire residential belt outside Reading-Bracknell-Maidenhead-Windsor covers Newbury (RG14), Wokingham (RG40, RG41) and Sandhurst (GU47). Each carries a similar mix of suburban housing stock with pockets of larger detached homes. Brand fit follows the same pattern: uPVC for the suburban stock, Cortizo or Schuco aluminium for the larger detached upgrades.

Cortizo Aluminium Windows — The Key Systems

Cortizo Cor 70 Hidden Sash

Cortizo's flush-casement aluminium window. The sash sits flush with the outer frame so the closed window reads as a continuous flat plane rather than a casement with a visible projecting sash. This is the architectural language most often called out by architects on contemporary new builds and on conservation-area renovations where the planning policy will accept aluminium with a flush appearance.

• 70mm thermally broken frame
• Flush-casement aesthetic with 66mm visible frame
• Full RAL palette plus anodised finishes
• PAS 24:2022 certified opening profiles

For full Cortizo aluminium window coverage see our Cortizo Aluminium Windows Review and the Cortizo Windows hub.

Schuco Aluminium Windows — The Key Systems

Schuco AWS 70.HI

The Passivhaus-grade Schuco casement. Whole-window Uw reaches the spec to which architects design Passivhaus-certified buildings. Specified on Berkshire low-energy refurbishments and certified Passivhaus new builds — common on the Wentworth-adjacent contemporary work in Sunningdale.

Schuco AWS 70 SC Slimline

The slim-profile member of the AWS 70 family. The thinner sightlines suit heritage and conservation-area properties where the planning policy will accept aluminium provided the visual impact reads close to traditional steel windows.

Schuco AWS 70 Tilt-and-Turn

Schuco's tilt-and-turn casement. The handle tilts the window inwards from the top for a controlled ventilation position, or turns the full sash inward for cleaning the outer face from inside the room. Common on apartment elevations and second-floor windows where outside cleaning access is not available.

Berkshire Installation: What to Expect

A typical aluminium window installation in Berkshire runs to this timeline:

1. Free site survey at your property (usually within a week of enquiry) 2. Written itemised quote within 3 to 5 working days, covering supply, installation, structural work where required, FENSA registration and the 10-year CPA insurance-backed guarantee 3. Order placed with the Cortizo or Schuco UK fabricator network — manufacturing lead time confirmed at quote stage 4. Pre-installation site visit to confirm aperture dimensions and prepare the openings 5. Installation — typically 3 to 5 days for a full-house window replacement (8-15 windows), longer if structural alterations are needed 6. FENSA certification issued within 14 days of completion

We schedule installations Monday to Friday across Berkshire. Weekend installations are available on request for postcodes where weekday access is limited.

Why Aluminium for a Berkshire Premium Property

Three reasons consistently come up at survey on Berkshire premium projects:

• Slim sightlines for contemporary architecture. Aluminium's high tensile strength means the frames can be much thinner than uPVC for the same structural span. On architect-led new builds in the Wentworth-Ascot belt, that frame-to-glass ratio is the leading priority.
• Long-term durability in the riverside microclimate. Maidenhead, Cookham, Taplow and Windsor properties along the Thames experience higher humidity than the average UK residential exposure. Aluminium does not warp, swell or rot. The powder-coat finish carries a long warranty against fade in UK climates.
• Conservation-friendly heritage spec. Schuco AWS 70 SC Slimline and Cortizo Cor 70 Hidden Sash are accepted by some Berkshire conservation officers for sensitive properties where traditional timber is not commercially viable. We always check the specific designation for your address as part of the survey.

Berkshire Conservation Areas

Berkshire has substantial conservation-area coverage including parts of Windsor, Eton, Old Windsor, Bray, Cookham, Sonning and Bisham. Article 4 directions apply on specific properties. Aluminium is unlikely to be approved for principal elevations on listed buildings and within strict conservation area cores, but rear elevations not visible from the public highway are usually acceptable.

For listed-building or strict-conservation projects, our typical recommendation is Rehau flush sash uPVC or aluminium with split-light glazing bars to mimic traditional steel sash patterns. We confirm the specific designation for your address as part of the survey.

Pricing

Vitrum Solutions is a quote-driven business and we do not publish fixed price tables on Berkshire aluminium window projects. Cortizo and Schuco aluminium window pricing varies materially with the number of windows, system tier (Cortizo Cor 70 Hidden Sash vs Schuco AWS 70.HI vs Schuco AWS 70 SC Slimline), glazing specification, RAL colour, threshold detail and any structural alterations to the existing apertures.

For industry pricing context see How Much Do Aluminium Windows Cost in the UK. Final price is set after a free no-obligation survey at your property.

Frequently Asked Questions

Do you install aluminium windows across Berkshire?

Yes. Vitrum Solutions covers all Berkshire postcodes including Ascot (SL5), Maidenhead (SL6), Windsor (SL4), Reading (RG1-RG6, RG30), Bracknell (RG12), Wokingham (RG40, RG41), Sandhurst (GU47), Newbury (RG14) and the surrounding belt. All installations are FENSA registered with a 10-year CPA insurance-backed guarantee.

Which aluminium window brand should I specify for a Berkshire property?

For most Berkshire premium projects the answer depends on the property and the architectural priority. Cortizo Cor 70 Hidden Sash is the strongest fit for contemporary new builds where the flush-casement aesthetic is the priority, and for heritage properties where conservation officers will accept aluminium. Schuco AWS 70.HI is the right specification when the project targets Passivhaus or low-energy certification. We confirm the right system at survey based on aperture sizes, orientation and the wider glazing schedule.

Can aluminium windows go on a Berkshire conservation-area property?

In Windsor, Eton, Bray, Cookham and other Berkshire conservation areas the answer depends on the specific designation. Aluminium is unlikely to be approved for principal elevations on listed buildings and within strict conservation area cores, but rear elevations not visible from the public highway are usually acceptable. Schuco AWS 70 SC Slimline and Cortizo Cor 70 Hidden Sash are the most often-accepted aluminium specifications. We check the specific designation for your address as part of the survey.

How long does a full-house Berkshire aluminium window installation take?

On a prepared aperture, a typical full-house Berkshire aluminium window replacement (8-15 windows) runs to 3 to 5 days of on-site work. Berkshire-specific factors that move the timeline: Royal Borough of Windsor and Maidenhead Conservation Area conditions can require pre-installation officer consultation on principal-elevation work in Windsor town centre, Eton, Old Windsor and Bray; Thames-Valley access constraints in Cookham, Sonning, Hurley and waterfront Maidenhead can limit lorry access on flood-plain lanes and add half-day site delivery and protection time; properties on private estates around Wentworth and the Sunningdale belt can require gate-access scheduling that limits to weekday daylight hours. Lead time from order to delivery moves with current Cortizo or Schuco UK fabricator volume; we confirm at quote stage.

Are Cortizo and Schuco aluminium windows PAS 24 certified for Approved Document Q?

Yes. Both carry PAS 24:2022 specifically for window opening profiles, which is the minimum standard mandated by Approved Document Q (security in dwellings) for new-build dwellings in England and Wales. The window-side certification covers the casement profile, the multi-point shootbolt lock, internally beaded glazing and toughened safety glass to the test attack tier. This is distinct from the Approved Document Q door-side requirement, which has its own test scheme. Hardware specification on both Cortizo and Schuco aluminium windows includes a 3-star TS007 anti-snap cylinder where the system uses one. Secured by Design configurations on the window opening profiles are available on both as an upgrade where the insurance underwriter or local-authority new-build specification requires it. See What Is Secured by Design for the SBD vs PAS 24 split.

What is the difference between Cortizo Cor 70 Hidden Sash and Schuco AWS 70.HI for a Berkshire property?

Match the system to the property type. Cortizo Cor 70 Hidden Sash is the right call for heritage cottages and period properties: the flush-casement profile reads close to traditional steel-window aesthetics, accepted by some Berkshire conservation officers in Windsor, Eton, Bray and Cookham on properties where strict timber is not commercially viable, and the 66mm visible frame keeps the sightline narrow enough for traditional stone or brick reveals. Schuco AWS 70.HI is the right call for Maidenhead and Sunningdale-Wentworth contemporary new builds targeting Passivhaus or low-energy refurbishment certification: the deeper thermal break and chamber design reach the whole-window Uw thresholds Passivhaus design specifies, where Cor 70 sits at the standard A-rated thermal band. The decision rule: heritage and conservation-friendly visual lead → Cor 70; Passivhaus and low-energy thermal lead → AWS 70.HI. Both are PAS 24:2022 certified.

Does the Berkshire location affect installation timing?

Berkshire is in our core service area so installation timing matches our wider scheduling. Lead time from order to delivery is the same as for Buckinghamshire or Surrey postcodes. We typically install Berkshire jobs Monday to Friday with weekend slots available where weekday access is limited.

Getting a Quote

Vitrum Solutions installs Cortizo and Schuco aluminium windows across all Berkshire postcodes, plus the wider Home Counties (Buckinghamshire, Oxfordshire, Surrey, Hampshire, Hertfordshire and West London). Request a free quote and we will provide a written itemised price for the right Cortizo or Schuco aluminium window system for your project.

For Berkshire across all glazing types see our Berkshire installer page. For other county coverage see Schuco Bifold Doors Surrey and Double Glazing Buckinghamshire.