If you have any questions or would like to discuss further what you should be doing, ETS is here and willing to help.
Call 0117 205 0542
Submit a contact form


Harris Lamb - Mechanical & Electrical Performance Specification

Following the exit of the current tenant at lease expiry and successful building services and fabric dilapidation negotiations, ETS, including mechanical, electrical, and vertical transport, oversaw the building services element for the new fit-out.
Energy & Technical Services was then engaged to provide Mechanical and Electrical Engineering Services Performance Specifications for the Category A fit-out of the space in readiness for their new incoming tenant.

Client Brief

Harris Lamb provides property consultancy for real estate giants across the United Kingdom. In this project, Energy & Technical Services was tasked to:

• Assess and re-use the existing building services equipment wherever possible or practically in order to reduce costs.
• Ensure the new installation meets/exceeds current building regulations.
• Produce and issue a tender stage performance specification for the tendering contractors to progress into a detailed design.
• Review and comment upon the detailed design information and periodically inspect and comment upon the works as required.


• Office space currently no longer complies with the latest building regulations.
• The building currently has an EPC rating of C.
• Modifications/alterations to the landlord’s building services by the previous tenant have made the space unsuitable for return to open-plan occupation.

ETS’s Scope included:

Performance specification for the installation of:

  • DX Heat Pump VRF Systems
  • Heat Recovery Ventilation
  • Domestic Hot & Cold Water
  • Low-voltage Electrical Distribution
  • Fire Alarm & Controls
  • Lighting, Emergency Lighting and Lighting Protection
  • Vertical Transport (Lifts)
  • Vehicle Access Barrier

ETS’s Solution & Strategy

A multidisciplinary service team, led by ETS Strategic Account Manager Neil Pickard, was established to deliver the client brief. ETS ensured the new installation was flexible enough to meet the requirements of any new tenants with minimum alterations to the new Cat A installation. Additionally, with our energy expertise, we improved the current EPC rating to prevent any future changes related to the minimum energy efficiency standards (MEES), which creates the biggest advantage of the client’s site and reduces the potential regulatory cost in the future.


The project was delivered successfully with a Grade A office fit-out, incorporating VRF heat pump comfort cooling and heat recovery ventilation throughout to meet current building regulations. LED lighting with zoned occupancy sensing and automatic daylight dimming further enhanced energy efficiency and occupant comfort. As a result of these improvements, the Energy Performance Certificate (EPC) rating was elevated from C to B, reflecting the commitment to sustainability and optimised performance in the renovated office space. The client was able to secure a new tenant for the newly refurbished office space.

Successful delivery of Grade A office fit-out. EPC rating improved from C to B.

VRF heat pump comfort cooling.
Heat recovery ventilation throughout to meet current building regulations.


Midcounties Co-Operative – ESOS Phase 3 Compliance

Midcounties Co-operative achieved their ESOS Phase 3 compliance successfully with a total of 346,650kWh opportunities identified and resulting in 71,896 Kg of emissions to be saved.

Woodie’s – Decarbonisation & Energy Performance Audit

Our proposed photovoltaic solution can enable the production of circa 70,000kWh of electricity annually. There is also a suggested destratification system, achieving savings of up to 20% in heating costs.

The Fulham Shore – ESOS Compliance & Consultation

The Energy Savings Opportunity Scheme is compulsory for large UK organisations. A total of 29,610,620kWh opportunities were identified for The Fulham Shore, resulting in 31,783,515 Kg of emissions being saved.