Building Services

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Who we are

We are Callaghan Green

CallaghanGreen is a unique, dynamic and progressive building services consultancy that was formally established in 2014. The founding partners, directors and team have evolved together over the last two decades, developing a unique working relationship and uncompromising dedication.

This wealth of mutual trust, experience and expertise has been gained operating at senior levels within leading international and local design consultancies, working and developing together on projects of all sizes across the following sectors under extreme programme and financial pressured conditions.


Mechanical, Electrical and Public Health Design

At CallaghanGreen Mechanical, Electrical and Public Health design is our core business. Reducing the carbon footprint of the built environment is embodied into our way of working. We are always looking for ways to develop more sustainable buildings.

Our Services:

  • Mechanical and electrical (M&E) engineering
  • Heating, ventilation and air conditioning
  • Public health
  • Feature lighting lesign
  • Fire detection, security & access control systems
  • Sustainable design
  • LV distribution, small power & functional lighting design

Utilities Infrastructure Planning

Energy and the availability of infrastructure through traditional methods is now more challenging than ever, we use practical thinking and apply cost effective solutions using actual load data and load profiling that allows us to propose the most cost-effective utility provisions for our Clients and their projects.

Our Services:

  • Feasibility assessment
  • Utility constraint assessment
  • Building and project load assessments
  • Network operator submissions
  • Diversion/ connection design recommendations
  • Services coordination
  • Client consultant during installation

MEPH Condition Surveys

Existing installations can often difficult to understand, especially if record information is incorrect or not available. Often MEPH systems can be added to over time with additions not correctly recorded either.

At CallaghanGreen we apply our expertise and ‘common sense’ and can provide both non-intrusive and intrusive surveys. This allows us to inform an onward design, feasibility assessments, modifications and/or strip out works.

Our Services:

  • Site Visits and Initial Appraisals
  • Building Services Condition Reports and Recommendations
  • Detailed Surveys
  • Scan to BIM/ Point Cloud

BREEAM, Energy, Sustainability and Modelling

We are Energy and Sustainability Design professionals and pride ourselves on delivering achievable strategies that provide our Clients with the most cost effective and compliant solutions, that complement our Building Services practical thinking.

Our Services:

  • BREEAM Pre-assessments
  • Energy Strategies and Statements and;
  • Energy and Carbon Reduction Strategies
  • Sustainability Design Solutions and Statements
  • Bespoke Sustainable Strategies
  • EPC and SAPs

3D Coordination

At CallaghanGreen we utilise 3D design and apply this through REVIT and AutoCAD software to produce layouts both at conceptual stages and also detailed design and installation stages of a project.

Our Services:

  • 3D Coordinated Layouts
  • 3D Plantroom Design
  • AutoCAD MEP

Our approach



CallaghanGreen is an innovative ‘challenging the norm’ building services consultancy focused on creating positive outcomes for our clients.

Sustainable Design

Sustainability is embedded within our thinking. We always want to provide sensible solutions and from our experience these provide the most sensible outcomes.


Our approach to every project stems from the belief that every building is a place to live, work, socialise, retreat, holiday and enjoy.