Insulation Regulations Now Affect Property Transfers — Time to Act
With new insulation regulations now enforced at the notary level, property transfers can no longer proceed without verified insulation certificates. This change has created a surge in demand for qualified insulation installers — and the best ones are already extremely busy.
Professional installers who understand how to apply insulation properly, especially in older buildings, are in short supply. These specialists often work to standards well above the minimum code requirements, ensuring long-lasting performance and avoiding common humidity or condensation problems. Many reputable teams are already booked years in advance — some until 2030 — and face difficulties finding and training new staff to meet the growing workload.
If you’re planning to insulate or upgrade a property, start the process early. Work closely with your architect to design an effective insulation strategy that suits your building. High-quality, non-foam-based materials are gaining popularity due to their durability and breathability, particularly in heritage or solid-wall homes. Foam-based products are increasingly being replaced across Spain because of moisture and longevity issues.
Good insulation work takes time — from careful detailing of vapour barriers and airtight membranes to finishing with appropriate renders such as cork-based systems. In historic buildings, additional time is needed to remove old cement renders or incompatible materials before new insulation can be installed.
Finally, remember that Spain’s varied climate conditions affect when exterior insulation work can be done. Many regions have limited “weather windows” — periods suitable for applying renders or insulation systems — so planning ahead with installers and architects is essential.