The Practice

We are an independent engineering firm providing consulting services throughout the UK and Ireland.

Caldwell is a full service MEP engineering resource. We work alongside the pioneers of the built environment to create buildings and spaces that enhance the lives of those who use them.

Brian D Caldwell founded the company in 1966. Brian was an influential figure in shaping the urban landscape in towns all over Northern Ireland. Today, our headquarters are still based in Belfast, though our teams work all over the UK and Ireland.

Delivering at the highest level is our number one priority. Standards, not scale, create the momentum that drives us forward.


Image Credit: Jason Hawkes


We are a multidisciplinary team with expertise across MEP, BIM & 3D modelling, sustainable energy design, process engineering, project management, lighting design, as well as lift & elevator consultancy and extended fire and acoustic engineering.

As our clients’ needs evolve so do our capabilities. Though our teams are located throughout the UK and Ireland, individual projects are overseen by a director to ensure productive and reliable results.

Mark Taylor


Managing Director

Engineering and Environmental Services

Contact Mark

M 077 7933 8394


Mark joined Caldwell in 1988 and gained extensive experience in all aspect of the consultancy business before being appointed as Director in 2004.

He currently works between London and Belfast and continues to be highly involved in project delivery. Recent projects include the W Hotel for Starwood, 140,000 sqft Portman Square Office for British Land and Tuffnal Apartments for Taylor Wimpey. Mark supports the building services industry having served as CIBSE NI Secretary for over 10 years and a member of ACE NI Special Interest Group for the past 6 years.

John Watson


Managing Director

Engineering and Environmental Services

Contact John

M 077 7933 8395


John joined Caldwell in 1990 and gained extensive experience in all aspect of the consultancy business before being appointed as Director in 2004. He currently works between London and Belfast and continues to be highly involved in project delivery. Recent projects include the 500 bedroom Novotel / Ibis signature development for the Accor Group in Blackfriars, the 701 bedroom Premier Inn at Gatwick North Terminal and a 700 bed student accommodation at Stratford for Unite Student Housing.

He currently works between London and Belfast and continues to be highly involved in all of Caldwell project delivery.

Marc Burns

BEng (Hons) MIET


Engineering and Environmental Services

Contact Marc

M 079 7702 7538


Marc began his employment at Caldwell after graduating from Queen’s University Belfast in 2002. He was appointed as an Associate in 2008, Associate Director in 2013 and Director in 2016. His particular speciality is in the hospitality and commercial office sectors.
Recent projects include the extension of the listed Merchant Hotel in Belfast, a 300 bedroom Hampton by Hilton in London and the conversion of a former magistrate’s courthouse into a 5 star hotel in Shoreditch.

Gavin Kelly


Regional Director – North West

Engineering Services North West

Contact Gavin

M 078 5469 1456


Gavin heads up Caldwell’s North West Regional activities having set up the Derry office in 2007. Based in Derry, he has delivered several key projects throughout Ireland and the UK. Gavin started with Caldwell in 1999 and rapidly gained a post at senior management level. He was heavily involved in the refurbishment of Lough Erne Resort ahead of the G8 2013 International Summit, including the new spa, pool and leisure suite.

Current projects include process engineering commissions for several of Northern Ireland’s leading manufacturers including the new £5m extension to Ulster Carpets.

David Shearer


Associate Director

Engineering and Environmental Services

Contact David

M 077 7332 2731


David joined Caldwell in 1984 and gained extensive knowledge of all aspects of the consultancy before being appointed as Associate Director in 2007. He currently works in our Belfast Office, with a dedicated team of 16 Engineers, and continues to be highly involved in project delivery.

David specialises in our Marine and Restoration/Conservation Projects which have included: Loch Ryan Port Cairnryan for Stena Line; modernisation of Linkspan facilities for P&O Ferries in Cairnryan; Hatston Pier in the Orkney Islands and refurbishment of the SS Nomadic in Belfast’s Titanic Quarter. His latest restoration project is Belfast’s latest Tourist Attraction, HMS Caroline, Alexandra Dock and Titanic Pumphouse, a circa £20m project for NMRN in the Titanic Quarter reflecting the rich maritime history of Belfast.

David is our Quality Director, an Incorporated member of the Association for Project Safety and he also provides a Health & Safety as well as Principal Designer role for the practice.

Alan Geddis


Associate Director

Energy, Sustainability and Information Services

Contact Alan

M 077 3326 2778


Alan joined Caldwell in 1996. He has considerable experience in building services ranging from initial liaison with clients to delivery of cost effective and innovative projects of all sizes. His focus within the company is to promote innovative and sustainable solutions, not only in the Building Services field but working with the whole design team.

He is a registered Low Carbon Design Consultant, BREEAM Assessor, Low Carbon Energy Assessor and is qualified to submit for the maximum Level 5 dynamic simulation modelling for SBEM Carbon, Footprint, Thermal Simulation, Daylight, Energy, Etc. Alongside Marc, Alan also coordinates the BIM strategy and overall IT approach and integration for the practice.

Chris Harman


Associate Director

London & South East

Contact Chris

M 07377 605 664


Chris is a recent addition to the Caldwell team and heads up Caldwell’s London and South East regional activities. He graduated with an MSc in Mechanical Engineering from UCL in 2005 and has gained valuable experience on all aspects of consultancy in over 12 years of working on many large–scale projects for blue chip clients such as Whitbread and Unite. His extensive client–side consulting experience has seen him take numerous projects from conceptual design, through planning to construction and completion. He has delivered many successful projects in a lead role on new build, refurbishment, conversion and extension hotel and residential schemes as well as other mixed use projects.

His highlights include working on the design team to develop the Hub by Premier Inn bedroom concept and successfully delivering the first site at St Martins Lane (Covent Garden), as well as the five hotels which followed including their flagship 389 bedroom hotel in Kings Cross. Other highlights include obtaining a successful planning outcome for a £120m mixed use scheme in Bristol and delivering Phase 1 of the project.

Paul O’Neill

MEng (Hons) MIET

Senior Associate

Engineering & Environmental Services Vertical Transportation Systems

Contact Paul

M 077 0854 8886


Paul graduated from Queens University Belfast in 2007. He subsequently commenced employment with Caldwell in 2008, taking up the role of Associate in 2014 and Senior Associate in 2017. Paul is involved in various engineering and managerial aspects of the practice and has delivered various high–profile and complex projects across market sectors. His current primary focus is on large scale commercial developments on the UK mainland, recent examples of which include a 10,000sqm BCO Compliant Office development in Maidenhead; the largest Premier Inn Hub Hotel to date at Kings Cross, London (400 beds), the restoration of the historic Cadogan Hotel, Chelsea for Cadogan Estates and Belmond; and the restoration and extension of the Grade II Listed Magistrates Court at Tower Bridge into a 5* Boutique Hotel.

Paul also has a particualr interest in Vertical Transportation and heads up our lift planning and dynamic simulation team.

Martin McCrea

Associate Electrical Engineer

Engineering & Environmental Services

Contact Martin

M 077 3266 7628


Since joining Caldwell in 1989, Martin has brought an immense wealth of knowledge and experience to the practice, with over 30 years service in the consultancy business. His role includes training, design, management and project delivery.

Martin works on projects throughout the UK & Ireland for companies such as BritishLand, Taylor Wimpey Central London & Unite Students, to name but a few. He is a specialist in managing schemes in extreme and/or isolated locations, such as the modular built Moorefield Hotel in the Shetland Isles and various historic projects in the most Northerly Hebridean Isles. Listed and traditional properties are also of interest, including the £1.65m RIBA award winning refurbishment of the Victorian Portrush Town Hall.

Martin has been known to share his innovative flair for lighting design, having worked alongside clients and designers to produce some very unique lighting solutions, particularly in the public realm.

Padraic Quinn


Associate Electrical Engineer

Engineering & Environmental Services Mid–Ulster

Contact Padraic

M 078 0079 7863


Padraic jointly heads up the newly opened Magherafelt office. He began his employment at Caldwell in 2007 having previously worked in the electrical services installation industry. Having gained considerable knowledge within the company he was appointed as an Associate in 2018.

He has been involved with the delivery of many significant projects throughout Ireland and the UK and his specialities include the residential and educational sectors. Recent projects include the luxurious apartments at The Mansion in London, Strule Shared Educational Campus in Omagh and the refurbishment and regeneration of the existing seven floor landmark Lincoln Office building in Belfast.

Conor Blaney

MEng MIMechE

Associate Mechanical Engineer

Engineering & Environmental Services

Contact Conor

M 074 3628 4052


Conor graduated from Queens University in 2008. He joined Caldwell in 2010 and took up the role of Associate in 2017.

His current focus is on large scale commercial and residential developments throughout the UK. Recent projects include the conversion of a former magistrates courthouse into a 5 star hotel in Shoreditch London, Westminster Quarter Apartments for Taylor Wimpey and The Mansion Apartment Development for Clivedale in Marylebone London.

Sam McVicker


Associate Mechanical Engineer

Engineering & Environmental Services

Contact Sam

M 074 3628 4051


Sam attended Newcastle Upon Tyne University where he studied Mechanical Engineering and obtained his Masters Degree, graduating in 2009. Sam commenced employment with Caldwell in 2010 and gained considerable experience working on and delivering successful projects throughout Ireland and the UK. Sam became an Associate in April 2017.

He has worked on numerous projects within a number of different sectors including, Hotel, Office, Retail and Residential. Delivering the projects from conceptual ideas, creating detailed designs and managing the installation, commissioning and handover stages. Recent examples of which include London Irish Rugby Training Grounds, City View Brighton Office Development and Angel Lane Unite Student Accommodation. He is currently working to deliver a 22 Storey Student Accommodation in Liverpool with over 1000 beds.

Pearse McCallan


Associate Mechanical Engineer

Engineering & Environmental Services

Contact Pearse

M 074 3628 4050


Pearse began his engineering career at Caldwell in January 2011 after graduating from the University of Ulster, Belfast in 2010. He was appointed as an Associate in 2017.

Since joining Caldwell, Pearse has gained experience in the hotel, education, healthcare and commercial office sectors across the UK and Ireland. Recent developments include the 389 Bedroom Hub by Premier Inn including retail units at King’s Cross London and the 9–storey, 126,000 square foot Clarendon House office occupied by Belfast City council. He has delivered approximately 2740 Premier Inn and Hub by Premier Inn bedrooms as well as a number of Jury’s, Hilton, Ibis, Clayton and Marriott hotels.

Eoin Bennett

BEng MSc

Associate Mechanical Engineer

Engineering & Environmental Services Mid–Ulster

Contact Eoin

M 077 3157 8759


Eoin joined Caldwell in 2013. He came from a mechanical contracts manager role where he gained extensive knowledge from a site–based perspective of mechanical and electrical services. Eoin was promoted to Associate in 2017. His particular speciality areas include healthcare, hospitality and commercial office sectors.

Eoin played a pivotal role in setting up a new office for Caldwell in Magherafelt which opened in April 2018. Alongside Padraic, he oversees project delivery, mentoring and training of staff and the general day to day operations of the Magherafelt office.

Recent and current projects include the district heating mains project at Muckamore Abbey Hospital, Adagio Aparthotel Edinburgh Royal Mile, the restoration & extension to the Grade II listed 1906 John Dixon Butler police station and magistrates court at Tower Bridge London into a 193 bedroom 5* boutique hotel and the 190,000 sq. ft. Grade A office for HMRC in Edinburgh.

Alistair Sherlock


Associate Electrical Engineer

Engineering & Environmental Services

Contact Alistair

M 079 7687 6387


Alistair originally joined Caldwell as a placement student in 2009. He went on to complete a master’s degree in Energy & Building Services Engineering in 2012 and gained experience on various large projects in the Healthcare, Public & Commercial sectors. He returned to Caldwell in 2016 and took up the role of Associate in 2018.

Current projects include a 157–apartment development in Brentford for Waterside Places, a 741–apartment development at South West Lands, Wembley Park, for Quintain & a 1085–bedroom student accommodation unit for Unite Students in Liverpool.
This wide range of projects has instilled a broad range of skills which add value to the projects he is involved in. Alistair brings a practical approach to projects and the challenges in each, striving to bring problem solving design solutions to meet the needs of each client.

Jacqueline Edwards


Accounts Manager

Business Services

Contact Jacqueline

M 028 9069 9720


Jacqueline joined Caldwell’s in 1979 holding various administrative roles before being appointed Accounts Manager in 2004. With over 30 years service she has extensive knowledge and experience in the overall financial management of the company.

She currently works from the Belfast Office alongside the Directors and Associates to manage all aspects of the financial and business services.


Career opportunities

We are currently looking for a range of building services professionals to strengthen our MEP Design Teams. Please call 028 9069 9720 or email to arrange for an application form and/or an informal chat.


Keep updated. Sign up today