Stop guessing. Upload your address list and we will append the Heating Type, Wall Construction, and Tenure data you need to qualify leads.
Below is a real example of the data structure. We return deep technical insights allowing you to size heat pumps and estimate insulation costs remotely.
Semi-Detached • 79m² • Built 1950-1966
Boiler and radiators, mains gas
Cavity wall, filled cavity
Pitched, 200 mm loft insulation
Our API goes beyond basic checks. We return the full technical profile including Heating Systems, Wall Types, and Insulation Levels so you can automate your eligibility logic.
{
"address": "5 Maple Drive, WN8 8RW",
"details": {
"type": "Semi-Detached",
"area": "79m²",
"built": "1950-1966",
"tenure": "Likely Freehold"
},
"financial": {
"income": "£26,433",
"valuation": "£193,866",
"demographic": "Industry Associations",
"occupancy": "Owner-occupied"
},
"specs": {
"heating": "Boiler and radiators, mains gas",
"walls": "Cavity wall, filled cavity",
"roof": "Pitched, 200 mm loft insulation"
},
"epc": {
"current": "D 65",
"potential": "C 79",
"date": "2025-01-09"
},
"recs": [
"Solar photovoltaic panels, 2.5 kWp",
"Solar water heating",
"Floor insulation (suspended floor)"
]
}
In the UK retrofit market, knowing the address is not enough. You need to know the Infrastructure of the home before you quote. LeadCheck appends the specific technical data required to calculate heat loss and eligibility without a site visit.
Stop wasting marketing budget on homes that are already upgraded. Our API tells you instantly if a property has "Cavity wall, filled cavity" or "Mains Gas". This allows you to specifically target off-gas homes for Heat Pumps, or solid-wall homes for External Wall Insulation (EWI).
For GBIS and LA Flex, household income is key. We provide modeled household income (e.g., £26,433) and property valuation (e.g., £193,866). This helps you prioritize households that are more likely to qualify for funding or financing options.
We provide the Total Floor Area (79m²) and Built Date (1950-1966). This data is vital for performing initial heat loss calculations remotely. Knowing the age and size of the property allows your sales team to give accurate estimates on the first call.