Smart Planning for High-Performance, Low-Carbon Homes
At AEG Construction, every successful retrofit begins with a professional assessment and intelligent design. Our retrofit assessment and design service ensures your home improvements are carefully planned, compliant, and deliver maximum energy savings, comfort, and long-term value.
By taking a whole-house approach, we design retrofit solutions that work together seamlessly avoiding costly mistakes and ensuring future-ready performance.
Why Retrofit Assessment Matters
Installing energy upgrades without a proper retrofit assessment can create serious performance, cost, and compliance issues.
Retrofit Assessment
Our Retrofit Assessment Process
Clear, compliant, and sequenced correctly — survey, fabric-first evaluation, design, funding checks, then delivery planning.
Property Survey & Data Collection
We complete a detailed property survey to build the evidence base for design and funding compliance.
- Wall, roof, and floor construction
- Existing insulation levels
- Heating and hot water systems
- Windows, ventilation, and airtightness indicators
- EPC rating and property constraints
Heat Loss & Energy Efficiency Evaluation
We identify heat loss routes and prioritise improvements before upgrading heating systems.
- Reduce energy demand (lower running costs)
- Improve comfort and internal temperatures
- Prepare the home for low-carbon systems
Retrofit Design & Sequencing
A sequenced plan prevents rework and ensures measures complement one another.
- Insulation upgrades
- Heating system replacements
- Renewable energy integration
- Ventilation requirements
- Moisture and condensation control
Grant Eligibility & Compliance Checks
We check eligibility and keep the paperwork aligned with required standards.
- ECO4 government funding
- Local authority schemes
- Energy supplier obligations
- Ofgem requirements & Building Regulations
- Technical standards and evidence pack
Installation Planning & Quality Assurance
Coordinated delivery with stage checks to protect quality and timelines.
- Efficient scheduling and site coordination
- Trade management and specialist support
- Minimise disruption with clear method statements
- Quality checks at every stage
Designed for Retrofit Success
- Improved EPC ratings
- Reduced energy bills
- Lower carbon emissions
- Long-term system reliability
- Comfort and indoor air quality
Who Is This Service For?
- Homeowners planning energy upgrades
- Landlords meeting EPC compliance targets
- Households applying for ECO4 funding
- Properties with solid walls or older construction
- Anyone seeking long-term energy savings
Frequently Asked Questions (FAQs)
Do I need a retrofit assessment before upgrading my home?
Yes. An assessment ensures upgrades are correctly specified, compliant, and deliver maximum efficiency and comfort.
Can I still get grants without a retrofit design?
Most funded schemes, including ECO4, require proper assessment and documentation to ensure compliance.
How long does a retrofit assessment take?
Typically, the assessment and design process takes a few days, depending on property size and complexity.
Will you manage the entire retrofit project?
Yes. We offer full project management from assessment through to installation and certification.
Can retrofit design prevent damp and condensation?
Yes. Correct design includes ventilation, moisture control, and airtightness to minimise condensation risks.