Regulated by RICS

Mechanical and electrical

We’re different because we understand mechanical and electrical (M&E) engineering as part of the whole building consultancy picture. Our large force of M&E engineers combines specialist knowledge with a practical approach, a commercial outlook and the multi-disciplinary support of the wider Hollis team. Our M&E offering comprises operational engineering, M&E projects and vertical transportation.

Operational engineering: with you throughout the property lifecycle

We look after existing buildings and their M&E services, supporting you at every stage from acquisition and operation to modernisation and disposal. Through maintenance management we monitor and control a building’s mechanical and electrical systems throughout its life. As independent and commercially minded engineers we understand investors and can guide you in managing diverse operational demands — from keeping buildings operating sustainably, efficiently and reliably, managing maintenance budgets and CAPEX expenditure, to tenant relations, service charges and compliance.


  • Pre-acquisition surveys
  • Vendor surveys
  • Dilapidations
  • Maintenance management
  • Planned maintenance reports
  • Drone surveys and data capture

M&E projects: astute, informed advice

Clients have been partnering with us for our specialist project support for many years, across a wide range of sectors and on projects ranging from £20,000 to more than £10m. We provide industry-leading technical expertise, strong commercial awareness and a rounded, strategic view. We use 3D design simulation software and Revit ® for precise, pragmatic and sustainable design advice. We work jointly with our project management team or autonomously, collaborating with other suppliers.


  • Mechanical, electrical and public health service design (full design and performance design)
  • Tenant alterations M&E reviews
  • Utilities requirement assessments and applications
  • Specialist lighting design
  • Electrical network analysis, building regulation compliance
  • Computer aided design using Revit and CAD
  • Master planning and infrastructure advice
  • Feasibility concept report
  • Low carbon and sustainable design
  • Use of 3D thermodynamic simulation software in design
  • Building critical systems review assessments
  • Drone surveys