Maximising home energy efficiency per £ invested – Built by energy experts, powered by AI.
From assessment to funding and delivery—your retrofit partner for plans and detailed designs that perform.
Minimum EPC C Compliance
Begin by evaluating your current EPC rating to understand your true home energy efficiency.
Clear estimates of costs, potential savings, return on investment, and property value growth.
Get tailored recommendations and designs on energy upgrades to improve home energy efficiency and reduce bills.
Get tailored recommendations with a breakdown of costs for each element:
Begin by evaluating your current EPC rating to understand your true home’s energy efficiency.
Clear estimates of costs, potential savings, return on investment, and property value growth. Get tailored recommendations and designs on energy upgrades to improve efficiency and reduce bills footprint.
Get tailored recommendations with a breakdown of costs for each element:
Begin by evaluating your current EPC rating to understand your home’s energy efficiency.
Get options tailored to your goals, budget, and EPC needs, with detailed designs, heat loss calculations, and equipment specifications.
We specify exact details for your equipment, like a 5kW Samsung EHS monoblock heat pump.
Benefit from our expert assistance to access government funding and finance to reduce your costs.
Get accurate, tailored quotes and contracts to ensure your retrofit project is safeguarded at every step. Partner with reliable retrofit professionals for high quality results.
Explore three personalized renovation plans designed to match your goals, budget, and expected EPC upgrade.
Get accurate, tailored quotes and partner with reliable retrofit professionals for high quality results.
Decide if you want our expert assistance to access government funding and finance to reduce your costs.
Ensures work quality and on-time completion through property visits and progress monitoring.
Manages work, handles contracts, and keeps homeowners updated with real-time project tracking.
Ensures systems pass final tests, meet performance benchmarks, and smoothly hands over all plans, manuals, and maintenance guides.
This government method applies models to simulate energy use for heating, lighting, ventilation and hot water.
Powered by precise data on energy systems, installed equipment, and building materials, to ensure reliable insights.
By factoring in weather conditions and material performance, realistic outcomes for energy efficiency are guaranteed.
Ensures work quality and on-time completion through property visits and progress monitoring.
Manages work, handles contracts, and keeps homeowners updated with real-time project tracking.
Ensures systems pass final tests, meet performance benchmarks, and smoothly hands over all plans, manuals, and maintenance guides.
This government method applies models to simulate energy use for heating, lighting, ventilation and hot water.
Powered by precise data on energy systems, installed equipment, and building materials, to ensure reliable insights.
By factoring in weather conditions and material performance, realistic outcomes for energy efficiency are guaranteed.
Get a Free EPC Assessment
Start with only what you need whether you are exploring options or ready to boost your home energy efficiency.
For those aiming to understand energy performance and get general advice.
For property owners ready to plan seriously. Be guided through our software and generate by yourself PAS2035-aligned reports to unlock ROI.
PAS2035 For property owners ready to plan seriously. Our certified retrofit assessors will produce a PAS2035 compliant reports to unlock ROI and insulation grants.
For hands-off approach with complete designs, contracts and support for control over time & budget (PAS 2035 compliant)
Expert assessment to confirm your current EPC rating accurately represents your property and its equipment. Includes: a remote survey, EPC validation, and a detailed report to assess your home energy efficiency.
Tailored EPC improvements to upgrade your home energy efficiency
Upfront costs, savings forecasts ROI, and capital appreciation
Custom energy retrofit Recommendations
Direct access to trusted contractors
Project timeline
List of available grants & financing options
Compliant reports for Great British Insulation and ECO4 schemes
PAS 2035-compliant Retrofit Assessor
Detailed design including heat loss and equipment specifications
Property-specific scope of work
A vetted supply chain and secure contracts
Expert guidance to secure grants and financing
Ongoing technical and commercial support for every step
For those aiming to understand energy performance and get general advice.
Custom energy retrofit Recommendations
Direct access to trusted contractors
Project timeline
List of available grants & financing options
Compliant reports for Great British Insulation and ECO4 schemes
PAS 2035-compliant Retrofit Assessor
Detailed design including heat loss and equipment specifications
Property-specific scope of work
A vetted supply chain and secure contracts
Expert guidance to secure grants and financing
Ongoing technical and commercial support for every step
For property owners ready to plan seriously. Be guided through our software and generate by yourself PAS2035-aligned reports to unlock ROI.
Tailored EPC improvements to upgrade your home energy efficiency
Upfront costs, savings forecasts ROI, and capital appreciation
Custom energy retrofit Recommendations
Direct access to trusted contractors
Project timeline
List of available grants & financing options
Compliant reports for Great British Insulation and ECO4 schemes
PAS 2035-compliant Retrofit Assessor
Detailed design including heat loss and equipment specifications
Property-specific scope of work
A vetted supply chain and secure contracts
Expert guidance to secure grants and financing
Ongoing technical and commercial support for every step
PAS2035 For property owners ready to plan seriously. Our certified retrofit assessors will produce a PAS2035 compliant reports to unlock ROI and insulation grants.
Tailored EPC improvements to upgrade your home energy efficiency
Upfront costs, savings forecasts ROI, and capital appreciation
Custom energy retrofit Recommendations
Direct access to trusted contractors
Project timeline
List of available grants & financing options
Compliant reports for Great British Insulation and ECO4 schemes
PAS 2035-compliant Retrofit Assessor
Detailed design including heat loss and equipment specifications
Property-specific scope of work
A vetted supply chain and secure contracts
Expert guidance to secure grants and financing
Ongoing technical and contractual support for every step
For hands-off approach with complete designs, contracts and support for control over time & budget (PAS 2035 compliant)
Tailored EPC improvements to upgrade your home energy efficiency
Upfront costs, savings forecasts ROI, and capital appreciation
Custom energy retrofit Recommendations
Direct access to trusted contractors
Project timeline
List of available grants & financing options
Compliant reports for Great British Insulation and ECO4 schemes
PAS 2035-compliant Retrofit Assessor
Detailed design including heat loss and equipment specifications
Property-specific scope of work
A vetted supply chain and secure contracts
Expert guidance to secure grants and financing
Ongoing technical and commercial support for every step
Using AI-powered algorithms and chatbots, we provide a seamless way to challenge and validate any EPC. Our process is precise, transparent, simple, and a true reflection of SAP calculation methodology developed by the BRE, which underpins EPC certifications and home energy efficiency assessments.
We create a tailored home retrofit plan with optimum solutions for your home’s needs, from definition and sizing of ventilation, heating, and insulation to exact specifications that ensures maximum home energy efficiency and comfort.
Our retrofit designs are backed by Professional Indemnity Insurance—the first platform to offer this assurance. This guarantees your plan is expertly crafted and protected, giving you total confidence in the quality and reliability of your retrofit.
This promise ensures cost transparency and peace of mind throughout your retrofit journey, so you can trust us to deliver smarter, energy-efficient solutions without unexpected surprises.
Our negotiated supply chain contracts and smart design algorithms ensure every retrofit is cost-effective and tailored, delivering maximum value without compromising quality to boost home energy efficiency.
Unlock the potential of your energy retrofit project with available UK grants and tailored funding support.
Not sure where to start? Talk with an expert.
Optimise your energy usage with our AI-powered HEMS. It monitors consumption, detects inefficiencies, and stores energy during off-peak hours for peak-time use to boost home energy efficiency.
Keep your home energy efficiency at its best by managing, and maintaining all your appliances effortlessly with our intuitive, all-in-one app .
Powered by precision and expertise Ivynest offers reliability, beyond traditional approaches to help boost your home energy efficiency.
Our AI takes property plans and energy reports (EPCs) and turns them into super-accurate data, making SAP10 calculations faster and a true reflection of your home energy efficiency.
HEMS saves you money by managing your energy use and tariffs, and by detecting unusual consumption to keep your home energy efficiency at its peak.
London
“This platform made my retrofit stress-free! Great contractors, clear updates, and excellent results. Highly recommend for anyone upgrading their home.”
London
“Wow… I am very pleased with the entire platform, it turned out to be more than my expectations and so far there have been no problems.”
Leeds
“Impressive service, skilled contractors and real-time tracking made everything smooth and hassle-free.”
Manchester
“The project was completed efficiently, with great communication. The contractors were professional and delivered excellent results.”
London
“This platform made my retrofit stress-free! Great contractors, clear updates, and excellent results. Highly recommend for anyone upgrading their home.”
Birmingham
“Wow… I am very pleased with the entire platform, it turned out to be more than my expectations and so far there have been no problems.”
London
“Effortless process. Quality work, timely completion, and a team that truly cares. 2 months later my home energy efficiency is at its best”
Leeds
“Impressive service, skilled contractors and real-time tracking made everything smooth and hassle-free.”
Manchester
“The project was completed efficiently, with great communication. The contractors were professional and delivered excellent results.”
Our certified partners are credited by the highest standards ensuring quality and reliability in delivering home energy efficiency
Ivynest is your all-in-one platform for energy retrofits. We help homeowners improve their Home Energy Efficiency by offering tailored retrofit plans, SAP assessments, and end-to-end coordination of the entire project—from design to delivery.
Our process is simple and streamlined:
With Ivynest:
We simplify the complex process and ensure your retrofit delivers maximum results for your Home Energy Efficiency.
It’s simple! Visit our website, create an account with our app, or fill in our contact form. We’ll guide you through every step of the process.
Yes! We identify eligible grants, incentives, and financing options to make your energy retrofit affordable. This information is included in your detailed energy retrofit plan.
Yes, we offer Retrofit Coordination services. This includes managing on-site progress, ensuring quality, issuing progress reports, administering contracts, handling valuations, and overseeing handover documentation (O&Ms).
Yes! We identify eligible grants, incentives, and financing options to make your energy retrofit affordable. This information is included in your detailed energy retrofit plan.
An energy retrofit involves upgrading your property to improve Home Energy Efficiency. This could include measures such as insulation, double glazing, solar panels, heat pumps, or ventilation upgrades. The goal is to save energy, reduce bills, and increase comfort while adding property value.
Our energy retrofit plan, with design and tender is priced at 7%(+VAT) of the project’s total capital expenditure (capex), providing a comprehensive, tailored solution for your property.
With Ivynest:
Our energy retrofit coordination is priced at 10%(+VAT) of the project’s total capital expenditure (capex), providing site management, on-site progress review, quality control, valuations, contract administration, and final handover management.
Our SAP assessment is priced at £150.00 (+VAT), providing SAP calculations and lodging your EPC rating to ensure compliance with energy efficiency standards .
The duration of an energy retrofit depends on the scope of work, property type, and the specific measures implemented. A basic retrofit, such as insulation and ventilation improvements, can take a few weeks (excluding design and lead time), while a comprehensive whole-house retrofit (including heat pump installation, solar PV, and deep insulation upgrades) may take 2 months (excluding design and lead time). At Ivynest, we provide a detailed timeline as part of your retrofit plan, ensuring minimal disruption to your home or tenants.
Yes! Every energy retrofit plan includes a projected ROI based on energy savings and property value increases. Our aim is to help you lower your bills and increase your Home Energy Efficiency and market appeal.
Payment terms for an energy retrofit depend on the specific services:
Additionally, Ivynest helps identify grants, incentives, and financing options to make retrofits more affordable. Full details of payment structures and financing opportunities are included in your tailored retrofit plan.
Energy. Upgrade. Smart
© 2025 Ivynest. All rights reserved
Energy. Upgrade. Smart
©2024 Ivynest. All rights reserved
While viewing a £475,000 Victorian terrace in East London, James noticed solid brick walls and an old gas boiler, raising doubts about its advertised “C” EPC rating. To be sure, he used Ivynest’s EPC validation tool, which revealed that, given the property lacked insulation and had an inefficient heating system, the EPC rating was more likely to be an “E” or even an “F.”
Armed with this information, James negotiated a £15,000 reduction in the asking price to cover necessary upgrades. Post-purchase, he retrofitted the home with proper insulation and air source heat pump, achieving a true “C” rating and cutting his energy bills by 40%.
James praised Ivynest for empowering him to secure a better deal and avoid a costly mistake
Sarah, a homeowner in Manchester, was gearing up to sell her three-bedroom semi-detached property. An EPC assessment rated her home as an “E,” stating that the property lacked sufficient insulation and energy efficiency measures. Sarah was surprised—she had invested in loft insulation and a biomass boiler a few years prior. The “E” rating significantly reduced buyer interest, and potential offers were tens of thousands below her expected sale price.
Determined to challenge the rating, Sarah turned to Ivynest’s EPC validation tool. The platform flagged key errors in the initial assessment, including missed details about her loft insulation and a miscalculation of her double-glazed windows. After a proper reassessment using Ivynest’s system, her home was upgraded to a “C” rating. With the improved rating, Sarah relisted her property and saw immediate results—interest soared, and she accepted an offer £45,000 higher than before. Sarah credits Ivynest for ensuring her home’s energy efficiency was fairly represented.
