Royal Horticultural Society- Wisley

Client: RHS Wisley
Contractor: Osborne
Architect: Wilkinson Eyre
Sector: Retail/ Hospitality/Education
Contract Value: £3.7m
Location: Surrey

Project Scope:

Aluminium Windows
Aluminium Curtain wall
Aluminium Doors
Timber Rainscreen
Timber Brise Soelil
Concrete Effect Rainscreen Panels


Schueco FWS50 both SG and Capped
ADS 70 Hi Swing Doors
AWS70 Hi Windows
Chestnut Timber Cladding panelised at our offsite facility
Chestnut Brise Soleil
Bespoke SG Canopy
Automatic Entrance Doors
Strata Concrete Effect Stone Rainscreen Panel

“I was particularly impressed by the exceptional standard of quality achieved by NACWL throughout this project: from bespoke Inspection and Test Plans (ITPs) to the technical expertise of the workforce…”


“We were impressed with their collaborative approach of working together to a common goal, and their appreciation and understanding of the quality of design that Wilkinson Eyre were aspiring to…”

Wilkinson Eyre Architects

“Health and Safety was taken hugely seriously and were always maintained at the highest of standards. The Site Management Team were of the highest calibre and always had the site running like a well-oiled machine. From the RHS’s point of view site operatives and subcontractors were always polite and hardworking…”

RHS Wisley


As a key supply chain partner to Osborne, NACWL were engaged to carry out the design, supply and installation of the full facade envelope to the stunning new hospitality and visitors centre at RHS Wisley. The brief was to incorporate natural materials to compliment the surrounding grounds, through careful planning and design, NACWL aided in the proposals of several key material choices.


Between cladding elements, NACWL used a combination of Schueco SG and capped curtain wall. In areas, a bespoke chestnut brise soleil fin system was hung from the curtain walling, windows and doors along with stunning bespoke glazed canopies


The systems we used within Wisleys laboratories included high security door sets (with keycode/card access control) and temperature-controlled actuators within windows that automatically open/close the units to aid climate control.

LED lighting has been installed throughout, which automatically adjusts with the level of daylight in each area to ensure minimum wastage of power. All materials were sourced responsibly including Schueco systems, which incorporate 40% recycled aluminium and 20% cullet. Timber classing and brise soleil, which benefits from a full FSC (Forest Stewardship Council) Chain of Custody. The facade provides exceptional performance values, which contribute to an energy efficient and comfortable space for users.

These include:

U-values: Ranging from 1.1 to 1.1.8 w/m2K

Light transmittance:70%

Solar factor: 33%es Here


Our Team Are Ready

Call the office, drop us an email or use the form, and we’ll get back to you as soon as possible.