Ranging from the refurbishment of legacy boiler plant in historic buildings to new air conditioning solutions to meet complex requirements such as Data Centres, specific facilities within the Healthcare, Media and Retail sectors or straight Office Cat A development and refurbishment CJ Design have a broad experience of working on both new and existing HVAC solutions.
For legacy buildings we are frequently commissioned to review and subsequently develop and implement improvements to the domestic water services from rationalisation of cold water storage to new hot water generation and distribution, regenerating systems and bringing them up to modern day service levels and water hygiene compliance.
CJ Design uses the latest dynamic simulation software. Thermal modelling provides developed simulation of the Building in the thermal environment. Weather data both future and present, building geometry, layout, occupancy & fabric information are combined with the proposed HVAC/renewable energy solutions to provide accurate representation of any given building in use.
These techniques are equally applicable for application to existing buildings. At CJ Design dynamic thermal modelling not only forms an integrated element of the design process but also provides a key tool in determining the potential effectiveness of a proposal when applied to existing buildings. The correlation of historic data with the model achieves accurate forecasts of the real benefits whether that be reduced fuel consumption or CO₂ production such that investments can be truly validated prior to expenditure.
Through our use of the latest dynamic thermal modelling software, combined with integrated 3D Cad integration we deliver class leading mechanical design services optimised to meet the needs of the Client, fully integrated within the built form.

CJ Design’s Sustainability team includes specialist team members who possess market leading expertise in the field. Qualified to a high degree we are able to provide our clients with the correct selection of appropriate technologies and building materials to provide the best optimised building across renewable, sustainable and low carbon technologies whilst considering the overall building cost.
We regularly incorporate low or zero carbon technologies into scheme design, meeting the latest planning legislation alongside alongside real carbon savings demonstrating our commitment to a sustainable future.

The role of the modern Building Services Consulting Engineer extends far beyond the design and construction stage services related to projects and must encompass a wide range of services to meet the needs of the modern Property market, Estate Managers, Building custodians and the legal profession.
At CJ Design we have the benefit of not only many years of experience but also the benefit of operating in a diverse range of property in delivering a Professional Consulting Engineering service to a varied client base.
A key element of this service offering is the surveying of the services installations within and associated with buildings. The survey format can range from Pre-Acquisition Technical Due Diligence, through ongoing PPM review identifying, assessing and populating Service Charge forecasts to Dilapidations Assessments.
Operational reviews can include problem identification and solving, identification of anticipated issues and the identification of potential remedies to new or historic problems. As an integrated service with the Sustainability team we can offer insight into ways in which operating costs can be minimised whilst potentially benefit from financial assistance in the form of Governments grants to address issues such as CO₂ production.
Whilst we would always prefer to be directly responsible for the design the modern engineering marketplace demands a flexible approach to appointment and engagement. In this we offer experience in operating in both a Design & Construct procurement model, briefing, checking and certifying the Contractor’s design as well as operating as an Independent 3^rd Party working alongside the appointed design team and reporting back to Landlords, Financiers and other interested 3^rd parties such as in-house procurement and Professional Practice teams.
The UK construction industry is no different to other industries. Sometimes things go wrong, there are unscrupulous traders and on occasions there can be incompetence. In these situations, where events lead to legal action, we at CJ Design are able to assist the legal process through our Expert Witness services.