OAG Solutions

Our services

OAG are fully committed to managing the entire project lifecycle to ensure that everything from design and cost planning through to installation and HSQE is done at the highest possible level.



Our Experienced design team offer you innovation and expert advise at every stage.

Cost planning

Cost planning

With our vast experience of glazing solutions we can provide accurate budget costs to help secure your project cost plan.



Our installation teams are fully experienced and carefully plan each project for the most cost effective and programme efficient methods.

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OAG - Architectural Glass - Redefined

OAG is a trading division of Optima Contracting Ltd, which is a privately owned Company. OAG provides engineered design solutions, bringing concept ideas and designs to life and enabling the realization of our client's vision.

Our business ethos is built around providing a high quality service - a one stop shop for the design, management and installation of specialist glazing projects. Above all, our commitment to delivering high levels of quality and service has earned OAG an enviable reputation.

Optima Group

As part of Optima Group, whose turnover is in excess of £40million, we have the strength and structure to work with you on the most prestigious and adventurous projects.

Optima Group Vision
To become the first choice for providing commercial workspace and architectural glass solutions through innovative design, superior installations and the best customer service in our industry.


Click on Timeline to Display More Information.

Year : 1946
  • The firm of H.L. Smith Builders (Marlow) Ltd was founded by Horace Smith as a business specialising in residential extensions and office maintenance.
Year : 1986
  • The business moves from Marlow to Bourne End and the name is changed to H. L. Smith Construction Ltd following the sale of the business to the present owners.
Year : 1988
  • The business outgrows its premises and constructs a new purpose built headquarters building in Bourne End, Buckinghamshire.
Year : 1995
  • The first Optima partitioning system is launched and the Optima division of H.L. Smith Construction Ltd is established.
  • Optima Products is created to provide materials and technical support to the Group’s contracting businesses.
  • HLS Installations Ltd is formed to provide well trained, high quality site labour and supervision to the Group.
  • Spectrum Glass Contracts Ltd is formed at Dunstable.
Year : 1997
  • Cirus Ltd is formed to give a separate identity to the fitting out and refurbishment activities of the business.
Year : 1998
  • Acquisition of Curtsons (Radstock) Ltd to provide a manufacturing and distribution base for Group products.
Year : 2002
  • The business outgrows its office premises and moves to a new headquarters building in High Wycombe.
  • The Optima Products trading style is adopted by Curtsons (Radstock) Ltd.
  • Cirus Ltd and Spectrum Glass Contracts Ltd are merged into H.L. Smith Construction Ltd as trading divisions and adopt the trading styles Cirus and Optima Architectural Glass respectively.
Year : 2003
  • H.L. Smith Construction Ltd. acquires certain assets of Unilock Ltd, including the company name, inventory, manufacturing rights and work in progress.
  • Curtsons (Radstock) Ltd adopts the trading style, 'Unilock Products'.
Year : 2004
  • The Cirus division of H.L. Smith Construction Ltd transfers to HLS Installations Ltd.
  • Optima Architectural Glass is rebranded as OAG.
Year : 2006
  • Bob Morse, the founding Chairman retires and Nick Caley is appointed as Group CEO, the Group board now comprises Nick Caley, Rob Judd, Gary Evans, Andy Grey and Sean Dann.
Year : 2007
  • As part of a Group rebranding exercise H L Smith Construction Ltd becomes Optima Contracting Ltd and Curtsons (Radstock) Ltd becomes Optima Products Ltd.
  • Wider geographical coverage for Optima Partitioning Systems is achieved through the appointment of a number of Contracting Partners both in the UK and overseas.

Market Sectors



  • - Shopping centres
  • - Individual retail outlets


  • - Commercial New Build
  • - Refurbishment
  • - Fitout


  • - Rail & bus terminals
  • - Airports
  • - Distribution centres
  • - Public buildings


  • - Bars & restaurants
  • - Theatres & galleries
  • - Sports stadia
  • - Health & fitness centres


  • - Building Schools for Future
Health Care

Health Care

  • - Hospitals
  • - Medical Centres

Health, Safety & Quality

OAG has placed HSQE at the forefront of its business since its concept and our approach to these subjects starts with its documented policies. Expertise is obtained through a full time HSQE Manager and where required external consultants.

Health & Safety
The company is pleased to advise that year on year, the effective systems, training and processes have resulted continual accident reduction statistics.

Our training plan is approved each year by the CITB and is delivered to all key personnel and subcontractors.


Environmental Management

Environmental management

OAG will always seek to undertake its business in accordance with the best interests of the environment. Materials from sustainable sources will be considered at the design stage.

Additionally, encouragement to staff in the utilisation of public transport and even a Directorate-led waste reduction initiative are current and ongoing targets.


Business Management & QA

Our BMS system is a proven model and is continually updated to suit advances in products, technology and working practices. This has proven useful, especially in the area of Design where enhanced protocols have further improved the process specifically in the area of Design Risk Assessment.


Our formal and rigorous audit programme encompasses Health and Safety, Business Management and Environmental subject matter. The scope is based upon current legislation, past performance and specific site requirements. The data and findings are compiled and constitute a major part of our Post Project Review procedure, our system of Key Performance Indicators and link directly into Staff Appraisal.




Bm trada

Our Business & Quality Management Systems are registered with BMtrada and comply with ISO9001:2008


14001:2004 Environmental Certificate

Our Environmental Management System was originally accredited to BS8555:2003 and registered on the Acorn Website. In 2008 we took the further step to achieving ISO 14001:2004.



Achilles Building Confidence
OAG has also maintained the coveted Achilles Building Confidence accreditation since 2008


CHAS approved Health & Safety System
Our Health and Safety Systems have been approved by CHAS and are structured to comply with ISO18001

Resources / Structure