EXISTING
Drafty & Inefficient
We analyze the thermal bridges, moisture risks, and energy leaks of your current property.
TECHNICAL
The Retrofit Plan
Our architects design a bespoke airtightness and ventilation strategy (PAS 2035 Compliant).
DELIVERY
Net Zero Home
Execution of external wall insulation, triple glazing, and heat pump systems.
Start with your EPC
Already have an EPC on record? Get a provisional upgrade report in minutes—based on your existing EPC data. It's a fast way to understand likely improvement options before booking a survey.
If your property isn't listed, we'll generate a best-fit estimate using similar local homes—then refine it with a survey if you decide to proceed.
Accuracy disclaimer: Provisional reports are indicative. EPCs are modelled documents and may not reflect current fabric condition, ventilation, or hidden constraints.
Three ways to start
Start with a quick provisional view, then upgrade to survey-led certainty when you’re ready.
EPC Search
Fast start
Get a provisional plan in minutes based on your existing data.
Technical Survey
Single Measure — £249
Confirm one upgrade and get a scope for quotes.
Retrofit Report
Whole-home Plan
Full plan, sequencing, risks, and independent cost guidance.
Two ways to retrofit with confidence
Whether you’re improving one part of the home or upgrading it properly over time, we help you avoid wasted spend, poor sequencing, and performance gaps.
Whole-home route (recommended for multi-measure)
Single-measure route (fast, focused)
What’s inside your Retrofit Report
This isn’t a generic checklist or a standard EPC recommendation list. It’s a practical, property-specific plan—based on an on-site survey—so you can make improvements confidently and in the right order.
A) Your property, understood
We summarise how your home is built, where performance is being lost, and what constraints matter.
B) Measures that suit your home
For each measure, we explain why it’s suitable, what good looks like, and what the key risks are.
C) A clear roadmap
You’ll get a staged plan—Do Now / Do Next / Plan Later—with sequencing and dependencies.
D) Costs and next steps
Impartial cost guidance and a practical next-actions list, including tender-ready scope options.
We never promise guaranteed savings or guaranteed EPC outcomes—final performance depends on detailed design, installation quality, and how the home is used.
Illustrative report preview
Technical Survey — single measure, done properly
If you already know the one upgrade you want, a Technical Survey gives you confidence before you commit. We confirm feasibility, identify constraints, and produce a clear scope you can share with installers—without full retrofit modelling.
What’s included:
- A suitability and feasibility check for the chosen measure
- Key constraints that affect cost and outcomes (access, condition, interfaces)
- Ventilation and moisture considerations where relevant
- Specification notes—what must be included, and what should be avoided
- An installer-ready scope summary to help you get comparable quotes
What it’s not:
- Not a whole-home retrofit plan
- Not EPC modelling
- Not a guarantee of savings or EPC improvement
Eligible measures
Most “quotes” aren’t truly comparable
They’re based on different assumptions. Small exclusions—ventilation allowances, finishes, thicknesses, junction detailing, access—often become costly variations later.
Outputs you receive
- Scope pack
- Quote comparison table
- Clarification log
- Selection summary
Tender Support — quotes you can actually compare
We turn your plan or survey into a clear, tender-ready scope, ask the right clarification questions to expose assumptions early, and help you select based on value and risk.
Turn your plan or survey into a clear, tender-ready scope
Ask the right clarification questions to expose assumptions early
Help you compare like-for-like and select based on value and risk—not just headline price
Delivery Management — for projects where detail matters
For multi-measure retrofits, outcomes depend on sequencing, coordination, and quality control. Delivery Management gives you oversight—so the work delivered matches the intent of the plan.
Best for:
- Multi-measure upgrades (fabric + heating + PV)
- Homes with higher moisture/ventilation risk
- Landlords needing consistent evidence and outcomes
- Anyone who wants fewer surprises and stronger quality control
What we manage:
- Programme and sequencing support
- Contractor coordination and quality checkpoints
- Evidence collection approach and completion pack
- Variations support (so changes don’t drift the scope)
- Snagging framework and handover
Provisional report vs survey-led plan
Our EPC tool is designed to give you a quick, useful starting point. But EPCs don’t capture everything that determines real-world outcomes—especially condition, ventilation, moisture risk, detailing, and build-ups.
Provisional EPC Report Free / Low friction
- Based on EPC data (or local estimates)
- Great for early ideas and priorities
- Indicative costs and uplift direction only
- Not suitable for final scope or risk decisions
Technical Survey / Report Survey-led accuracy
- Based on on-site assessment
- Confirms suitability and constraints
- Produces a scope you can quote against
- Considers ventilation and moisture risk
Example retrofit pathways
Every property is different. These examples show the kind of staged plans we typically create—depending on construction type, risk, and budget.
Victorian / Edwardian solid wall terrace
Common issues: cold walls, condensation, drafts
ventilation basics + draught control
wall insulation strategy (internal or external) + loft insulation
glazing upgrades + heating system upgrades
£249 Technical Survey for loft insulation or wall insulation feasibility
1930s cavity wall semi
Common issues: uneven comfort, rising bills
loft insulation + heating controls
cavity approach (if suitable) + targeted airtightness improvements
solar PV + heat pump readiness
£249 Technical Survey for loft or cavity (where appropriate)
Post-war / system-built
Common issues: thermal bridging, mould risk
ventilation assessment + moisture risk controls
external wall insulation strategy with junction detailing
heating upgrade + PV
£249 Technical Survey for EWI feasibility and constraints
Flat / apartment
Common issues: limited external change, ventilation constraints
ventilation strategy + heating controls
glazing strategy or internal insulation where permitted
communal system considerations (where relevant)
£249 Technical Survey for glazing scope or PV feasibility (where applicable)
Pricing & next steps
Start small with a single-measure survey, or start properly with a whole-home plan. You’re never locked into delivery.
Technical Survey
Single measure
One upgrade only, quick route to quotes
Retrofit Report
Whole-home plan
Whole-home roadmap and sequencing
Tender Support
Optional add-on
Comparing quotes properly and avoiding exclusions
Delivery Mgmt
Optional add-on
Multi-measure projects and higher-risk homes
* Final price depends on property size and complexity. You’ll receive a confirmed quote before booking is finalised.
You can take your Report or Survey and use it with any installer. We’re here to support—without pressure.
FAQs
If you only want one upgrade and you’re ready to act, choose the £249 Technical Survey. If you want the right measures in the right order—or you’re unsure what to do—choose the Retrofit Report.
No. An EPC is largely a modelling document. Our surveys are focused on what’s suitable for your property and what’s practical to deliver.
We don’t promise guaranteed EPC outcomes. We can indicate likely improvement direction based on assumptions, but final results depend on detailed design, installation quality, and evidence.
We’re a consultancy first. We can support tendering and delivery management, or you can use your Report/Survey with any installer.
Yes. Both the Retrofit Report and Technical Survey provide scope information designed to help you obtain clearer, more comparable quotes.
That’s exactly where risk-aware planning matters. We consider ventilation and moisture risk and recommend sensible next steps before upgrades that could worsen conditions.
Start with clarity.
Book a Retrofit Report for a whole-home plan, or a £249 Technical Survey for a single upgrade. Either way, you’ll know what’s sensible—and what to avoid—before you spend.