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Get your eco renovation
right first time

Plan and design the right energy upgrades for your home, in the right order, with no expensive mistakes.

Book a free consultation

Loved by 900+ homeowners

See how it works with this short explainer

Get your eco renovation right first time

Plan and design the right energy upgrades for your home, in the right order, with no expensive mistakes.

Book a free consultation

Loved by 900+ homeowners

See how it works with this short explainer

Get your eco renovation
right first time

Plan and design the right energy upgrades for your home, in the right order, with no expensive mistakes.

Book a free consultation

Loved by 900+ homeowners

See how it works with this short explainer

You're trying to make the right energy decisions for your renovation before the builders arrive, but nobody's giving you the full picture.

You've researched everything from insulation to heat pumps, but it's unclear what your home needs first.

The contractors you've talked to either give conflicting advice or won't help with energy performance at all.

You're worried about creating costly new problems, like damp or unreliable heating, if you get it wrong.

Get a BuildPack - a whole-house plan from independent experts that answers every question upfront.

See what's possible for your home

Our bespoke plans are grounded in real data from your home, not generic assumptions.

Tailored recommendations: We visit your home first to assess which improvements are feasible.

Clear comparisons: We model costs and energy savings for each upgrade from hundreds of data points, giving you a full picture you can budget against.

Informed choices: You'll talk through your options with a Retrofit Expert, so you understand the trade-offs before you commit.

Get everything done in the right order

We'll show you when each upgrade should happen, so you avoid any expensive mistakes.

A phased plan: The upgrades in your BuildPack are carefully sequenced to minimise cost and disruption.

Integrated designs: Our plan considers how different parts of your home interact, so fixing one problem doesn't create another.

Timed to fit your build: We take your wider renovation into account, explaining what to do while the walls and floors are open, and what can wait.

Designs that anyone can build from

We give you full specifications, not vague ideas, ready to hand over to contractors.

Precise specifications: Materials, dimensions, installation instructions. We cover every detail, leaving no guesswork on site.

Visual designs: Annotated floorplans and technical drawings show where everything fits in your home.

Written for builders: No need to translate requirements. The BuildPack is written so any contractor can reference it throughout the project.

See what's possible for your home

Our bespoke plans are grounded in real data from your home, not generic assumptions.

Tailored recommendations: We visit your home first to assess which improvements are feasible.

Clear comparisons: We model costs and energy savings for each upgrade from hundreds of data points, giving you a full picture you can budget against.

Informed choices: You'll talk through your options with a Retrofit Expert, so you understand the trade-offs before you commit.

Get everything done in the right order

We'll show you when each upgrade should happen, so you avoid any expensive mistakes.

A phased plan: The upgrades in your BuildPack are carefully sequenced to minimise cost and disruption.

Integrated designs: Our plan considers how different parts of your home interact, so fixing one problem doesn't create another.

Timed to fit your build: We take your wider renovation into account, explaining what to do while the walls and floors are open, and what can wait.

Designs that anyone can build from

We give you full specifications, not vague ideas, ready to hand over to contractors.

Precise specifications: Materials, dimensions, installation instructions. We cover every detail, leaving no guesswork on site.

Visual designs: Annotated floorplans and technical drawings show where everything fits in your home.

Written for builders: No need to translate requirements. The BuildPack is written so any contractor can reference it throughout the project.

See what's possible for your home

Our bespoke plans are grounded in real data from your home, not generic assumptions.

Tailored recommendations: We visit your home first to assess which improvements are feasible.

Clear comparisons: We model costs and energy savings for each upgrade from hundreds of data points, giving you a full picture you can budget against.

Informed choices: You'll talk through your options with a Retrofit Expert, so you understand the trade-offs before you commit.

Get everything done in the right order

We'll show you when each upgrade should happen, so you avoid any expensive mistakes.

A phased plan: The upgrades in your BuildPack are carefully sequenced to minimise cost and disruption.

Integrated designs: Our plan considers how different parts of your home interact, so fixing one problem doesn't create another.

Timed to fit your build: We take your wider renovation into account, explaining what to do while the walls and floors are open, and what can wait.

Designs that anyone can build from

We give you full specifications, not vague ideas, ready to hand over to contractors.

Precise specifications: Materials, dimensions, installation instructions. We cover every detail, leaving no guesswork on site.

Visual designs: Annotated floorplans and technical drawings show where everything fits in your home.

Written for builders: No need to translate requirements. The BuildPack is written so any contractor can reference it throughout the project.

Deliver it your way

Your BuildPack is yours to keep. We'll give you quotes from our network of trusted, vetted installers - but you can also use it to get quotes yourself, or take the pack to your existing contractors. It's up to you.

Deliver it your way

Your BuildPack is yours to keep. We'll give you quotes from our network of trusted, vetted installers - but you can also use it to get quotes yourself, or take the pack to your existing contractors. It's up to you.

Deliver it your way

Your BuildPack is yours to keep. We'll give you quotes from our network of trusted, vetted installers - but you can also use it to get quotes yourself, or take the pack to your existing contractors. It's up to you.

How it works

Book a home survey

We send a qualified retrofit assessor to survey your entire home for roughly two hours. They'll look at everything - walls, roof, floors, windows, heating system, and ventilation - collecting data to inform our recommendations and plan.

Review your options

An expert coordinator will walk you through our survey findings, which upgrades we recommend and in which order, with estimated costs, savings and install times. You decide which ones you’d like us to include in our design.

Get your BuildPack

We deliver a full plan and design for your chosen upgrades. The plan is split into phases, with detailed instructions on what exactly should be installed, how, where and when.

Take it to installers

We'll give you quotes from recommended, vetted contractors in our supply chain. Or you can take the pack to your own builders, architects or installers.

Why we're different

We're independent home energy experts

We work out what your goals are and tell you what your home actually needs.

Deep expertise. We've done this over 900 times across old and complex properties. Our team of qualified retrofit assessors, designers and coordinators know what works and what doesn't.

Whole-house thinking. Most companies do one thing - insulation, heating, or building work. We look at the whole home so nothing gets missed and nothing conflicts.

No product bias. We aren't installers. Our recommendations are based on what your home needs, not what we have to sell.

We've helped over 900 homeowners go from confused to confident

"It's scary how many builders give conflicting advice and don't understand energy efficiency. Furbnow made everything understandable."

Claire, Birmingham

"Working with Furbnow has given us confidence that we are making the right long term choices for our home."

Julie, Yorkshire

"Furbnow has been really helpful, providing both expertise and experience in identifying suitable products and installers."

Andrew, Surrey

See more reviews from happy customers

Hear about Cai and Eleanor's home renovation with Furbnow

Cai and Eleanor were already planning a full renovation of their Victorian terrace in Birmingham. We designed energy upgrades into their project from the start - insulation, ventilation, and an air-to-air heat pump - so that everything worked together. Now they have a warm, gas-free family home saving over £2,400 a year on energy bills.