We analyse EPC and Land Registry data to identify homes that may be harder to cool naturally ā and offer a free, honest assessment of your options.
From data analysis to an honest assessment of your home ā a clear, no-pressure process.
We use publicly available EPC and property data to identify homes that may benefit most from a cooling readiness review.
Properties with energy performance ratings of D, E, F, or G are more likely to have a comfort gap between current efficiency and what's possible ā making a cooling review worthwhile.
Homes where the EPC shows a large gap between current and potential rating. A significant improvement gap often signals underperforming insulation, ventilation, or glazing.
Properties built before 1980 pre-date modern insulation and ventilation standards. Older homes can be particularly sensitive to summer heat and may have more to gain from a review.
These properties can be harder to cool naturally due to limited external wall exposure and restricted airflow ā especially in older builds.
Properties not in conservation areas, flood zones, or near listed buildings ā where AC or heat pump installations are more likely to be straightforward.
Homes priced at or below the local sector median ā where a cooling upgrade can represent strong value relative to the overall property.
People get in touch for different reasons. Most just want to understand what their options are ā and whether proper cooling actually makes sense for their specific property.
Request your free checkToo hot to sleep, work, or relax. Many homeowners manage with fans, not realising there may be a better long-term answer specific to their property.
Not sure if it's worth it, where a unit would go, or whether planning constraints apply. The free check answers these questions honestly.
A D, E, F, or G rating can signal a real comfort gap. We explain what it means in practice for summer heat ā not just energy bills.
Older and terraced homes can be particularly difficult to cool naturally. A targeted assessment shows whether passive improvements or a proper system makes more sense.
If proper cooling doesn't make sense for the property, we say so. There is no pressure to buy anything at any stage.
Every property we contact has been assessed against a structured scoring model built from publicly available EPC and property data.
A larger gap between current and potential EPC adds up to +15 points to the cooling score.
Older terraced and semi-detached homes score highest ā they're hardest to cool naturally.
Conservation areas, listed buildings, and flood zones reduce eligibility for straightforward installations.
Scores are based on publicly available EPC and Land Registry data only. Indicative, not a professional assessment.
Receiving a letter about your home can feel unexpected. Here's what you can always count on from DLX ROI ā no pressure, no guesswork.
There is no cost at any stage. The Home Cooling Readiness Check is free ā and there is no obligation to proceed with anything afterwards.
If proper cooling doesn't make sense for your property, we'll tell you. We're not here to sell ā we're here to give you an honest assessment.
We work exclusively with residential properties in England and Wales, with a clear understanding of UK planning policy, conservation areas, and leasehold constraints.
We don't contact every home in an area. We only reach out to properties where the public EPC and property data suggests a genuine cooling case.
Any information you share with us is treated with complete confidence and is never passed to third parties without your explicit consent.
Our selection is based on publicly available EPC and Land Registry data ā structured, scored, and filtered. Not speculation or mass-blast outreach.
Tell us about your property and we'll be in touch to arrange your free Home Cooling Readiness Check. No cost, no obligation.
We've received your request. We'll review your property details and contact you to arrange the next step.
Common questions from homeowners who've received our letter or come across DLX ROI.
We analyse publicly available EPC and Land Registry data to identify homes that may be harder to cool naturally. If you received a letter, it's because your property's EPC rating, construction age, or property type suggests it may benefit from a cooling review. There is no obligation to respond ā we're simply letting you know, and inviting a conversation if you're curious.
Not at all. Our letter is based on publicly available EPC and property data ā it is not a survey, inspection, or professional assessment. It means your property scored well on our cooling indicators and may be worth reviewing before the next hot spell. The free check is how we find out what's actually relevant for your specific home.
Yes, completely. The check costs nothing and carries no obligation. We look at which rooms are most likely to overheat, whether passive improvements or an AC / heat pump system may be suitable, and where a unit could realistically go. If proper cooling isn't the right answer for your property, we'll say so ā and there's nothing to pay.
In many cases, air-to-air heat pump and split-system AC installations fall under permitted development rights for houses and do not require a planning application. However, conservation areas, Article 4 directions, listed buildings, leasehold terms, and noise constraints can all affect this. Our check helps identify which of these may apply to your property before you spend any money.
We focus on freehold houses across England and Wales with EPC ratings of D, E, F, or G, particularly older and terraced or semi-detached homes where natural cooling is more limited. We exclude flats, leaseholds, and properties in flood zone 3, as these have specific constraints that change the analysis significantly.
We currently focus on residential properties across England and Wales, where EPC data from the Open Data Communities registry is available and planning policy is broadly consistent. If you received a letter from us, we are actively working in your area.