Renewable Upgrades for Existing Homes

Replacing old heating systems and integrating renewable technologies.

For many of our customers, this isn't just another retrofit - it's the home they've invested years in. Getting it right matters.

Oil, LPG or an ageing gas boiler getting more expensive to run? Ready to generate more of your own energy, reduce your reliance on fossil fuels or make your home more sustainable? This is exactly the work we do.

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Fill out the form via the button and lets see how we can help.

Who this page is for

This page is for you if you’re:

  •   Heating your home with oil, LPG, or an older gas boiler and want to know your options. 
  •   Looking to cut energy bills or improve comfort in a home that already exists.
  •  Wanting to reduce reliance on fossil fuels and build long-term energy independence. 
  •   Looking to reduce your home’s environmental impact for a more sustainable future
  •   A TES customer ready for the next upgrade. 
  •   A landlord preparing a property for future EPC requirements.

Government Grants Available

For many homeowners, there has never been a better time to switch to renewable heating. We’ll explain what’s available, check your eligibility and guide you through the process.

Thinking Beyond One Technology

Many homeowners don't install everything at once. A heat pump today may lead to solar PV in a few years. Battery storage might make sense once your electricity usage changes. Electrical upgrades can prepare your home for future technologies such as EV charging. By understanding your longer-term plans, we can help you make decisions today that give you more options tomorrow.

Why Homeowners Choose TES

Renewable Expertise

Renewable energy technologies are at the heart of what we do. Everything else is designed to help those systems perform at their very best.

Designed As One System

Heating, plumbing, ventilation and electrics considered alongside your renewable technologies, creating one coordinated solution.

One Trusted Delivery Partner

One experienced in-house team delivering the parts of your project we're responsible for.

A Local Team You Can Actually Meet

Based in Tuxford, Nottinghamshire, you’re always welcome to visit

How We Work Together

Understand

We visit and assess your property before we provide a final quote - heat loss, existing system, electrics and how the technologies will perform.

Recommend

A clear, itemised proposal: what's included, what it costs after any available grants, and realistic timescales. If additional work is needed we tell you upfront and explain why.

Install

Our own engineers, not subcontractors. We work to minimise disruption in your home and keep you updated throughout.

Support

A full handover of your new system, with ongoing servicing, maintenance and support to help it continue performing at its best for years to come.

Ready to talk about upgrading your home? Book a survey and we'll give you an honest answer on what's right for your property

Get in touch

Fill out the form via the button and lets see how we can help.

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We would love to hear from you