Many homeowners and landlords are shocked when their EPC shows double-glazed windows rated as “poor”. Especially when the windows look modern. Or were installed years ago at high cost. This confusion has become much more common since the introduction of RdSAP 10. This guide explains exactly why this happens, what the EPC is really saying,… Continue reading Why Double-Glazed Windows Are Rated “Poor” on EPCs (RdSAP 10 Explained)