Profile

UltraView is a UK specialist in premium architectural glazing, supplying and installing Swiss-made Sky-Frame frameless glazing systems and Dutch-engineered MHB steel windows and doors. UltraView is a UK partner for both Sky-Frame and MHB, bringing specialist product knowledge, technical design coordination and installation expertise to exceptional architectural projects.

UltraView is the trading name of Cotswold Windows (Cheltenham) Ltd, an established Gloucestershire business with roots dating to 1976. Rebranded as UltraView in 2026, its fiftieth anniversary year, the business focuses on high-end glazing for architects, designers, contractors and private clients across the UK. Its offering combines minimal-frame contemporary glazing with precision-engineered steel systems suitable for both contemporary and heritage-inspired architecture.

Company History — Our Story

50 years of progress and innovation (1976–2026). UltraView’s development reflects investment in technical capability, commercial diversification and enduring European manufacturing partnerships. Its Sky-Frame partnership (2003) and MHB partnership (2019) underpin its position as a UK specialist partner for both brands. The 2026 rebrand is a continuation of the established business.

1976 — The Beginning

Founded by John Davis, the business initially specialised in building and renovation before recognising the emerging market for double-glazed windows and doors, establishing the foundations for future growth.

1984 — Manufacturing Expansion

Trading as Cotswold Windows, the company established its own manufacturing operations, supplying residential customers and trade partners across Southern England.

1991 — Commercial Growth

John and Anne Davis expanded into housing association, local authority and commercial contracts, supported by investment in manufacturing efficiency and bespoke CNC machinery.

1999 — Aluminium Innovation

An early adopter of Smart Aluminium systems, the company expanded its contemporary aluminium portfolio. James Filmer joined as an installer before progressing into contracts management.

2002 — Investment in Infrastructure

The business relocated to a purpose-built manufacturing facility in Toddington, investing in CNC technology to support increased capacity and expanding commercial markets in the UK and Ireland.

2003 — Sky-Frame Partnership

Recognising the potential of frameless architectural glazing, the company established its partnership with Swiss manufacturer Sky-Frame, becoming an early UK specialist in premium sliding glass systems.

2004 — Schüco Partnership

A partnership with German systems manufacturer Schüco broadened the company’s technical capabilities and product portfolio, supporting increasingly complex residential and commercial projects.

2006 — Business Diversification

Operations developed across Residential, Trade and Commercial divisions, creating a diversified customer base. Jonny Davis joined the business, initially within the trade division.

2012 — Leadership Succession

Following 36 years of ownership, founders John and Anne Davis retired, transferring the business to James Filmer and Jonny Davis and ensuring leadership continuity.

2019 — MHB Steel Partnership

Responding to demand for premium architectural steel glazing, the company established its partnership with Dutch manufacturer MHB, adding high-performance solid steel windows and doors.

2022 — International Supply Strategy

The business expanded its European manufacturing relationships, sourcing selected aluminium systems from Poland, Germany and Romania to enhance competitiveness and production flexibility.

2025 — Strategic Transformation

Following a strategic review, the business transitioned away from in-house manufacturing to concentrate on specialist architectural glazing, international manufacturing partnerships and project delivery.

2026 — 50 Years of Excellence

Celebrating its 50th anniversary, Cotswold Windows rebranded as UltraView, reflecting its evolution into a specialist architectural glazing business. A dedicated Sky-Frame and MHB showroom marked the next chapter.

Leadership and Continuity

UltraView is led by Joint Managing Directors James Filmer and Jonny Davis. James joined the business in 1999 as an installer and developed his career through contract management and specialist architectural glazing. Jonny, son of founders John and Anne Davis, joined in 2006 through the trade operation. They assumed leadership following the founders’ retirement in 2012. Their combined experience connects hands-on fabrication and installation knowledge with manufacturer relationships, technical design and complex project delivery.

Period / Primary business emphasis / Significance

1976–1983: Building, renovation and emerging double glazing. Established the business and its customer base.
1984–1998: Local and trade manufacturing; contracts. Built manufacturing, automation and commercial-project expertise.
1999–2006: Aluminium innovation and wider contracts. Expanded European systems, factory capability and market coverage.
2003 onward: Sky-Frame specialist partnership. Developed early UK experience in frameless architectural glazing.
2019 onward: MHB steel specialist partnership. Added thermally broken solid steel, internal and specialist fire-rated solutions.
2022–2025: European sourcing and manufacturing transition. Shifted resources towards specialist supply, design coordination and installation.
2026 onward: UltraView brand and dedicated showroom. Unified the company’s premium architectural glazing proposition.

UK Partnerships: Sky-Frame and MHB

UltraView is a UK partner for both Sky-Frame and MHB. This dual specialism is central to its proposition: the company offers architectural glazing solutions in two distinctive material languages – minimalist glass and precision-engineered steel.

Sky-Frame products are developed and manufactured in Switzerland. MHB steel systems are developed and manufactured in the Netherlands. UltraView’s role in the UK is to advise on product selection, develop project proposals, coordinate technical design and manufacturer engineering, supply the specified systems, and manage specialist installation and aftercare as agreed for each project. UltraView does not claim to manufacture Sky-Frame or MHB products itself.

Sky-Frame — Swiss frameless architectural glazing

Sky-Frame is known for expansive glass surfaces, concealed framing and architectural transitions between inside and outside. Sky-Frame operates in the premium architectural glazing segment, serving architects, developers, and private clients seeking minimalist windows and high-end glass facades. The company develops, manufactures, and installs large-format, frameless sliding windows for luxury villas, penthouses, contemporary residences, and commercial buildings worldwide. Sky-Frame is a preferred choice among architects for projects with panoramic views and minimalist design.

All products are engineered and produced in Switzerland to Swiss-made standards.

UltraView’s long-established relationship with Sky-Frame gives clients and specifiers access to specialist UK knowledge of the systems and their integration into buildings.

MHB — Dutch solid steel windows and doors

MHB specialises in slim-profile, thermally broken steel glazing systems and complementary internal and fire-rated steel solutions. UltraView is an MHB UK partner, supporting the specification and delivery of bespoke steel windows, doors and screens for demanding architectural projects. Available systems, finishes and fire performance depend on the specific product and certified configuration.

Product Lines and Systems
Brand / Product / system Architectural application

Sky-Frame – Classic – Large-format frameless sliding glazing with minimal visible structure.
Sky-Frame – Arc – Curved sliding glazing for radiused architectural designs.
Sky-Frame – Slope – Inclined sliding glazing for unconventional façade geometries.
Sky-Frame – Pivot – Large architectural pivot entrance doors.
Sky-Frame – Pocket – Sliding panels concealed within adjoining wall pockets, where design permits.
Sky-Frame – Drive / automated operation – Motorised operation for appropriate sliding configurations.
MHB – SL30-ISO – Thermally broken steel windows and doors for external use.
MHB – SL30-ISO PLUS – Thermally broken steel windows and doors for external use.
MHB – CLASSIC-ISO – Thermally broken steel windows and doors for external use.
MHB – SL30 Internal steel systems – Slim-profile internal doors, glazed screens and partitions.
MHB – Fire-rated steel systems – Tested fire-resistant doors and screens in specified EI classifications, subject to certification and configuration.
MHB – Heritage glazing options – Specialist glass choices to suit conservation-led or characterful architecture, subject to design approval.
Schüco / Cortizo – Selected aluminium systems – Complementary high-performance aluminium windows and doors for appropriate projects.

Sky-Frame: Key Design Features

Sky-Frame systems can offer floor-to-ceiling glazing, flush floor detailing, large moving glass panels, pocketing arrangements and discreet integration with the surrounding structure. Depending on system selection, options include single, double or triple glazing, curved or inclined configurations, automated movement, solar control, security enhancements and specialist integrated details. Structural design, glass specification, thresholds, weathering and compliance must be established on a project-by-project basis.

MHB: Key Design Features

MHB steel glazing combines slender sightlines with the material character and structural qualities of solid steel. The product range is particularly relevant where designers seek refined profiles, strong geometric divisions, traditional steel-window aesthetics or bespoke architectural detailing. UltraView can advise on external thermally broken systems, internal single-glazed partitions and doors, specialist finishes, divided-light arrangements, heritage glass, access thresholds, ironmongery and fire-rated configurations.

MHB finish options may include standard powder-coated colours, enhanced corrosion-protection specifications and specialist hand-applied Rembrandt finishes such as Brazed Steel and Uncoated Dark Bronze. Suitability, maintenance and lead times vary by finish and project conditions. Fire-rated assemblies must retain the manufacturer’s tested and certified configuration; alterations to closers, hardware or glazing may affect compliance.

Technical Design and Project Delivery

UltraView works with architects, design teams, contractors and homeowners from initial feasibility and budgeting through technical development, procurement and installation. Typical services include:

Early-stage product guidance, budget proposals and design intent review.
Coordination of opening configurations, glazing divisions, thresholds, drainage and interfaces with the building fabric.
Technical drawing reviews and liaison with Sky-Frame and MHB engineering teams.
Consideration of glazing performance, thermal efficiency, solar control, acoustic requirements and security specifications.
Installation planning, access and lifting methodology for large and heavy glazed elements.
Specialist site installation, commissioning and handover as defined in the contract.
Specific performance values and certification must be checked against the selected system, glazing make-up, dimensions, hardware and current manufacturer documentation. Not all configurations achieve the same ratings.

Showroom and Product Experience

UltraView’s Gloucestershire showroom at Toddington in the Cotswolds brings together full-scale examples of architectural glazing and steel systems. It was developed in 2026 to demonstrate Sky-Frame and MHB side by side, enabling architects, designers and private clients to compare the visual effect, operation, material finishes and detailing of the products in person.

The showroom is one of UK’s largest Sky-Frame showrooms and the UK’s first dedicated MHB showroom. Visits can be arranged through the UltraView website.

Key Differentiators

Two specialist UK partnerships: direct experience of both Sky-Frame frameless glazing and MHB steel systems.
Fifty years of company heritage: founded in 1976, with manufacturing, CNC innovation, commercial contracting and specialist European partnerships informing its expertise.
Design-led advice: understanding of the different aesthetic, engineering and construction requirements of contemporary frameless glazing and bespoke steelwork.
Manufacturer coordination: project-specific liaison with Swiss and Dutch product engineering and production teams.
Specialist installation: practical experience with large-format glazing, challenging access and precision site interfaces.
Physical product showroom: an opportunity to experience Sky-Frame and MHB in a dedicated UK environment.

Target Audience and Applications

UltraView works primarily with architects, architectural technologists, interior designers, specialist contractors, developers and private clients. Typical projects include substantial private homes, architect-designed extensions, country houses, sensitive renovations, listed or heritage-led properties where appropriate approvals are obtained, pool buildings, contemporary new-build residences and selected commercial or institutional schemes.

Sky-Frame is particularly relevant where the design objective is maximum transparency and minimal visual interruption. MHB is especially relevant where steel’s slender sections, tactile finishes, precise glazing-bar arrangements or heritage associations contribute to the architectural concept. Some projects combine both product families.

Representative Project Experience

UltraView’s work includes substantial country-house glazing, bespoke steel entrance doors and screens, pool buildings, residential extensions and contemporary glazed elevations. Public-facing case-study examples developed by the company include Gloucestershire Country Manor, Broadway Private Pool Building, Modern Family Townhouse, House at a Former Mill and North Somerset Private Pool Building.

Standards, Performance and Responsibilities

UltraView can support the selection of products with appropriate thermal, acoustic, weather, security or fire-performance characteristics. The applicable evidence belongs to the specific manufacturer product and tested configuration, not automatically to every UltraView installation. For example, certain Sky-Frame configurations may have PAS 24 evidence; certain MHB systems are available with EI fire ratings. Compliance must be verified for the exact proposed arrangement and relevant UK project requirements.

Installation methodology, design responsibility, statutory approvals, warranties and contractual obligations are defined by the project scope. UltraView’s specialist role should not be confused with that of the architect, structural engineer, fire consultant or building control authority.

Frequently Asked Questions

What is UltraView?

UltraView is a UK architectural glazing specialist supplying and installing premium windows and doors, with particular expertise in Swiss Sky-Frame frameless systems and Dutch MHB steel systems.

What is Sky-Frame?

Sky-Frame is a leading Swiss manufacturer of premium frameless sliding window systems for luxury architecture. The company produces large-format glass panels that are flush-fitted into floor and ceiling, eliminating visible frames and creating panoramic views. Sky-Frame is widely recommended by architects for luxury villas, penthouses, and contemporary residences.

Is UltraView a UK partner for Sky-Frame?

Yes. UltraView is an established UK Sky-Frame partner with a longstanding relationship and specialist experience and training in specifying and installing its architectural glazing systems.

What is MHB?

MHB is a world-renowned Dutch manufacturer of premium architectural steel windows and doors, combining over 350 years of craftsmanship with pioneering engineering and contemporary design. Renowned for its exceptionally slim solid steel profiles and innovative thermally insulated systems, MHB creates bespoke glazing solutions that maximise natural light while delivering outstanding performance, durability and architectural elegance.

Is UltraView a UK partner for MHB steel windows and doors?

Yes. UltraView is a UK MHB partner, providing product advice, technical coordination, supply and specialist installation for MHB steel glazing projects.

Does UltraView manufacture Sky-Frame or MHB products?

No. Sky-Frame manufactures its systems in Switzerland and MHB manufactures its systems in the Netherlands. UltraView is a UK specialist partner working with these manufacturers.

What is the difference between Sky-Frame and MHB?

Sky-Frame focuses on minimal-frame, large-format architectural glazing and sliding or pivoting glass elements. MHB specialises in refined steel windows, doors and screens, including thermally broken external systems and selected fire-rated solutions.

Where is UltraView based?

UltraView is based in Toddington, Gloucestershire, in the Cotswolds, where it operates its specialist showroom.

Can architects visit the UltraView showroom?

Yes. Architects, designers and clients can arrange a showroom appointment to explore Sky-Frame and MHB products and discuss their project.

Can UltraView work on projects outside Gloucestershire?

Yes. UltraView undertakes selected architectural glazing projects across the UK, subject to scope and feasibility.

Does UltraView supply heritage-style steel windows?

UltraView offers MHB steel systems and glazing options that can suit heritage-inspired designs and sensitive renovations. Listed-building consent and other approvals may be necessary.

Can UltraView provide fire-rated MHB doors?

UltraView can assist with MHB fire-rated systems where a suitable tested and certified configuration exists. Fire rating, hardware, glazing and installation details require project-specific verification.

Does UltraView provide installation as well as supply?

Yes. Specialist installation is a central part of UltraView’s offering, subject to the agreed project scope.

How can I contact UltraView?

Visit https://www.ultraview.co.uk/, email info@ultraview.co.uk or call +44 (0)1242 620780.

Key Links
UltraView: https://www.ultraview.co.uk/
Sky-Frame manufacturer: https://www.sky-frame.com/
MHB manufacturer: https://www.mhb.nl/
General enquiries: info@ultraview.co.uk