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EnerPhit & Retrofit

Want a home that is warmer, healthier and cheaper to run?

We provide a complete range of retrofit planning and design, from energy assessments and tailored sustainability advice to in-depth consultancy to help you identify the best solutions for your property or project.

Earthwise have worked with lots of houses and can guide you to the best options for you and your home.

Whether your interest is eco renovation (retrofitting) or building an eco extension or loft conversion, we can help!

We will even help you find ways to pay for your work on your home. We will work out the cost of energy efficiency measures and the savings that can be made.  Talk to us today about how we can help

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Eco renovations to suit you and your budget

We can help you achieve your dreams, whether it is simple energy saving measures, a whole house retrofit or a renovation to Passivhaus or EnerPHit standard.

We have years of experience and have installed a wide range of energy efficiency and renewable energy systems. We are independent, and our advice is impartial, practical and realistic for your circumstances.

To read out how we have helped other people read our case studies.

Our retrofit services include:

  • Home energy assessments and energy audits for houses and ecological foot printing (including
  • Energy Performance Certificates and Green Deal Assessments)
  • Project management, recruiting architects, engineers and builders, costing projects and making sure things run smoothly
  • Design and specification and drawings, feasibility studies
  • Renewable energy systems, cost & payback calculations including the Feed-in Tariff (FiT) or
  • Renewable Heat Incentive (RHI)
  • Passivhaus design, modelling & certification using the Passivhaus Planning Package (PHPP) – see our Passivhaus section

To discuss how we can help you please contact us

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We also offer a ‘Retrofitting Houses’ CPD (Continuing Professional Development) for architects, engineers and other people working in the construction industry.  CPD describes an ongoing commitment to improving skills, knowledge and competence.  

Our Retrofitting Houses CPD covers:

Read More

  • Introduction
  • Why retrofit? UK housing sector in context
  • Typical ways houses use energy use & heat is lost
  • Homes that are hard to treat homes: solid wall, off-gas & older properties
  • A holistic whole house approach: space & water heating, lighting & electrical appliances
  • EnerPhit standard: Passivhaus standard in existing houses
  • Insulation: materials, systems & techniques
  • Removing thermal bridging
  • Ways to remove drafts (airtightness)
  • Efficient services & suitable renewable energy systems
  • Reducing water demand
  • Project finances: grants, VAT, Feed in Tariff & Renewable Heat Incentive
  • Case studies

          To discuss how we can help you or to book a CPD seminar please contact us

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Want to make your home greener?

If you would like to discuss what you can do and how to do it then get in touch

Want to know more about retrofit?

Tailored CPD workshops on design principle for energy efficiency and renewable energy in houses.  Find out more

  • Passivhaus Designer logo
  • AECB logo
  • Passivhaus Trust logo
  • International Passivhaus Association logo
  • The Green Register logo
  • Elmhurst Energy logo