Our Services

We Provide Only The Best. Not only do we pride ourselves on providing fantastic customer service we also offer the most innovative technology.

Use electricity to heat your home rather than gas or oil

Create your own power and reduce your reliance on the grid

Reduce your carbon contribution drastically

Heat pump installation

Air Source Heat Pumps

New or old Air source heat pumps installed, serviced and repaired. Heat or cool your home on cleaner power.

Solar PV Installations

New and existing solar systems installed, assessed and repaired. MCS compliant, SEG compatible, residential and commercial.

Our Process

We like everything to be simple and easy, from beginning to end.


Initial Consultation

Get in touch with a member of the team and one of our renewable energy experts will discuss your enquiry in detail.


Arrange Heat Loss Calculation

To provide an accurate quotation, there needs to be conduct a heat loss calculation survey conducted. An accredited surveyor comes to the property and takes measurements and feeds the technical information back to us. This is a specialist role outsourced at a cost of £300.


Receive a Quote For the Work

Once we have received the technical statistics from the heat loss calculation survey, we can provide a quote for the installation and a projection for RHI payments. If the proposal and quote is accepted, the £300 paid for the heat loss calculation survey becomes a credit note for the install.


Arrange Installation

ASHP installations are a little more invasive compared to solar PV and can take up to 5 days to complete. This process is made as smooth as possible by our experienced Air Source Heat Pump team.


Receive RHI Income and Reduce CO2

Start heating your home with a renewable energy method and receive up to £11,500 tax free in RHI payments.



At K Cahill Renewables we pride ourselves on thorough pre-sales service as well as our after-sales care. If there is anything that ever requires clarification we are a phone call away.


Take a look at our


Are you ready to start your project?

At Cahill Renewables, we make it easy for you to find the perfect system to manage your energy better and reduce your bills. Whether you are looking for advice and guidance from an expert, or just want to understand the different systems available, we are here to help. Speak with one of our trained engineers today.

We would love to hear from you!

Colchester CO2 8JX

We are based in the heart of Essex.

Got a question? Drop us a line!