Poor project management and failure to acknowledge or address major outstanding issues with hot water supply
We would NOT recommend ELT to manage the supply of an Air Source Heat Pump system. They have neither in-house project management skills nor an in-house installation team.
ELT were one of several companies we invited to survey our house, and to perform heat loss calculations and system design. An ELT’s engineer satisfactorily answered all our questions prior to us selecting them to install our air source heat pump system. The ELT engineer did a second detailed pre-install survey and gave us an installation start date of 1st Dec 2025.
It went downhill from there:
Project management was appalling – on multiple occasions, without prior warning, either sub-contractors failed to arrive on site, or necessary materials were not delivered, necessitating repeated rescheduling of work.
We moved furniture and lifted carpets in several rooms ready for a 5 day schedule of work, which was not completed until seven weeks later, leaving two rooms disrupted for the whole period.
ELT have near-zero customer service, being unwilling or incapable of answering phone calls or emails in a timely manner.
Two weeks after the system was commissioned and handed over we realised there was a major problem with the domestic hot water system, i.e. no more than one 5 minute hot shower from a 250 litre hot water cylinder. ELT sent their sub-contractor to check the system, but none of ELT’s proposed solutions made any difference and 2 months later, despite repeated emails, ELT have offered no further support.
ELT have failed to respond to a safety query about the hot water disinfection cycle.
We have given ELT the 2 stars out of 5 for:
Successfully commissioning and handing over a working heating only system (but inadequate hot water)
Using competent, courteous, communicative sub-contractors who did their best in difficult circumstances with no on-site oversight








