Energy Evolution

Try our new Heat Pump Comparison Calculator

Who We Are

We are an unusual partnership... a plumber (Luke) and a software engineer (Stuart). Together we are able to deliver high quality, industry leading efficient installs, with the data to back it up.

This partnership was born from a passion project, ask us a question and you'll see why.

We prioritise research, design and modelling to determine the best approach. We go the extra mile to ensure we install the most efficient system possible.

Mission Statement

To provide the best technical knowledge and service to homeowners wanting to decarbonise.

Here at Saint Mary Energy we are data-driven in our decision making. We practise what we preach, we personally evaluate every product that we supply.

We are merging the world of Tech with local trades, by fostering partnerships with local trade professionals we're disrupting the traditional heat pump and solar commercial model.

What we do

Photorealistic 3d render of a fictitious air source heat pump mounted to a concrete base with vibration dampers on the outside of a house. Rose bush, ivy and strelitzia in the garden.

League-topping Heat Pump Installations

Our skilled team located in Devon delivers top-quality, league-topping heat pump installations.

We guarantee efficient installs with optimal performance for your home. Contact us to find out more.

Try our new Heat Pump Comparison Calculator

Comprehensive Solar System

When coupled with batteries, solar can pay for itself in just a few years. Let us take you through the numbers, we'll show you how.

The data speaks for itself, contact us to find out more.

Human use smartphone house smart home automation control system app, IOT, connected object, devices, innovation technology internet network, home, wi-fi, smart home technology concept

Ultimate Smart Home

This is another passion project for us, you'll notice a common theme here at Saint Mary Energy... passion.

If you have solar, batteries or a heat pump... you have data. With data, you can make better decisions, these decisions can be automated.

Want to know more?

Empower your home with clean, cost-effective energy! Discover how our data-driven approach and personal commitment to using what we supply can make renewables the smart choice for you.

Get A Quote

What We Use

See some of our completed projects

View Our Case Studies

Slide 1 of 3

They went above and beyond to ensure my satisfaction. Thank you for helping me harness the power of the sun!

- Sophia

Their team was professional, efficient, and knowledgeable. I am extremely satisfied with their work and the positive impact it has had on my energy bills. Thank you, Saint Mary, for your outstanding service!

- Emily

I want to express my gratitude to Saint Mary for their exceptional service. They were prompt, professional, and ensured that everything was done to perfection. Thanks to them, my heat pump is performing amazingly. Highly recommended

- Crawford

They went above and beyond to ensure my satisfaction. Thank you for helping me harness the power of the sun!

- Sophia

Their team was professional, efficient, and knowledgeable. I am extremely satisfied with their work and the positive impact it has had on my energy bills. Thank you, Saint Mary, for your outstanding service!

- Emily

I want to express my gratitude to Saint Mary for their exceptional service. They were prompt, professional, and ensured that everything was done to perfection. Thanks to them, my heat pump is performing amazingly. Highly recommended

- Crawford

They went above and beyond to ensure my satisfaction. Thank you for helping me harness the power of the sun!

- Sophia

Their team was professional, efficient, and knowledgeable. I am extremely satisfied with their work and the positive impact it has had on my energy bills. Thank you, Saint Mary, for your outstanding service!

- Emily

I want to express my gratitude to Saint Mary for their exceptional service. They were prompt, professional, and ensured that everything was done to perfection. Thanks to them, my heat pump is performing amazingly. Highly recommended

- Crawford

Contact us

We endeavor to get back to you within 24 hours. Alternatively, try contacting us through WhatsApp or Messenger using the link below.