How much does SATE cost per square metre?

depending on the project/m² of facade including VAT in 2026, depending on the insulant and finish. With EPS it is around variable per project and with rock wool it rises to variable per project. For a detached home the total usually lands depending on the project scaffolding included.

How much will I save on bills with SATE?

Up to 30% on climate control, because the continuous insulation removes thermal bridges and gives the wall inertia. On an average home the outlay is recouped in 8 to 12 years on energy savings alone, a period that shortens considerably if you obtain a refurbishment grant.

What grants exist for SATE in 2026?

Energy-refurbishment grants cover 40 to 80% of the work depending on the saving achieved, with better rates for whole-block community projects. There is also an income-tax deduction on the amounts invested. You must prove the improvement with an energy certificate taken before and after the work.

Does SATE reduce space inside the home?

No. Because it is fitted on the outside of the facade, it takes not a single centimetre from the rooms, unlike internal insulation. It also protects the wall from rain and sun, refreshes the look of the facade and removes condensation damp on the walls that face outside.

Updated 2026-07-01 · by Equipo Técnico

External wall insulation (SATE) in Alicante: cost and grants

In 2026 fitting external wall insulation (SATE) in Alicante is quoted individually to per m² of facade including VAT, depending on the insulant and finish. For a detached home that usually means on request to on request It cuts heating and cooling bills by up to 30%, and energy-refurbishment grants can cover 40 to 80% of the outlay. It also removes thermal bridges and condensation damp without losing any interior floor space.

SATE wraps the facade on the outside with insulating panels (usually EPS, rock wool or polyurethane) finished with a mesh and a render coat. Unlike internal insulation, it takes no space from the rooms and removes thermal bridges continuously. In the Alicante climate it improves comfort in both summer and winter, and protects the wall from sun and rain.

SATE price per m² in 2026

External wall insulation in Alicante (VAT included)

Item	Detail
SATE with EPS (polystyrene)most common option	variable per project
SATE with rock woolbetter fire performance	variable per project
Detached home (120-160 m² of facade)	variable per project
Apartment / block refurbishment (per home)	variable per project
Scaffolding and access equipmentby building height	included
Project and energy certificate	variable per project

How much SATE saves

Up to 30% cut in air-conditioning and heating spend.
Fewer hours of climate control thanks to the thermal inertia of the wall.
Condensation damp on external walls disappears.
A better energy-certificate rating, which raises the property value.

On an average home in the province, a 25-30% saving on climate control recoups the outlay in 8 to 12 years on energy alone. Add a grant that covers much of the work and the payback shortens sharply, while the boost to property value and comfort is immediate.

Grants available in 2026

Energy-refurbishment grants (indicative)

Item	Detail
Grant by energy saving achievedthe bigger the saving, the higher the rate	40–80% of the work
Income-tax deduction for refurbishmenton the amounts invested	up to 40–60%
Whole-block community worksgrants per community	better rates

Energy-refurbishment funds require you to prove a minimum improvement in the building demand via an energy certificate before and after the work. The subsidised percentage grows with the saving achieved. Preparing the technical paperwork correctly is essential for the grant to be approved, which is where a specialist contractor helps.

Timescales and remote management

Facade study and initial energy certificate.
Scaffolding erected and substrate prepared.
Insulating panels, mesh and finishing renders applied.
Detailing around openings, cornices and the base course.
A detached home is completed in 2-4 weeks depending on facade area.

For non-resident owners we agree a fixed price, handle the grant paperwork and energy certificates, and send photos at each stage. Because SATE is an external job, it can usually go ahead without you being present or the home being occupied during the works.