Captia Energy

An energy certificate, done by an engineer who visits your home

The energy performance certificate rates how much energy your home uses, with a letter from A to G, much like the EPC in the UK. It is compulsory before you sell or let a property in Spain. We do it with a real visit, sign it and register it with the regional government (GVA) for you.

When it is compulsory

You need the certificate before selling or letting a home. Not at the signing: from the very first advert. The energy label must appear in any offer, including the property portals, and advertising without it is an offence that can be fined.

If you sell

The notary asks for the registered certificate before the sale is signed. The buyer receives the original.

If you let

The tenancy contract must come with a copy of the certificate. The tenant has the right to see it beforehand.

If you advertise without the label

Publishing a listing without the energy rating carries a fine. Far more expensive than the certificate itself.

What the visit includes

Spanish law requires a visit to the property before it can be certified. We always do it, with a qualified, professionally registered engineer. This is what happens from your first call until you have the label.

1

We measure the home properly

Floor areas, orientation, windows, walls and roof. No templates filled in from a desk: what gets certified is what is actually there.

2

We check the installations

Boiler or heat pump, air conditioning, hot water and, if you have them, your solar panels. Everything counts towards the final letter.

3

We calculate and sign

A qualified engineer calculates the rating with the official software and puts their own name to the certificate.

4

We register it for you

We file the certificate with the regional government (GVA) register and hand you the label, ready for the listing or the notary.

Registration with the regional government (GVA), included

An unregistered certificate is no use for selling or letting. In the Valencian Community it is entered in the regional register of building energy certification, and that entry is what produces the official label.

  • The fee. The register charges a regional fee that depends on the floor area. We itemise it in the quote, at the current rate, before we start.
  • The timing. The visit and the calculation are quick; the entry itself depends on the register. We file it complete first time and follow it up until the label is issued.
  • The paperwork. You receive the signed certificate, the label and the proof of registration. Everything the portal, the estate agent or the notary will ask for.

Your certificate shows how much solar panels would help

The certificate is not just a piece of paper for the advert. It measures how much non-renewable energy your home uses, and that is where solar panels move the needle: they almost always raise the letter. If you are thinking about putting solar panels on your home, the certificate tells you where you start from and how much you would gain.

The key to the 40% national tax deduction

The national deduction for energy improvement works (Real Decreto-ley 2/2026) lets you deduct 40% of what you invest, on a maximum base of 7,500 euros, for works carried out up to 31 December 2026. It requires two certificates: one from before the works and one from after, showing the improvement in non-renewable primary energy use. The later one must be registered before 1 January 2027.

Without both certificates there is no deduction. We do both, in the right order and within the deadlines, and we register them. The details, and the rest of the deductions, are in the guide to 2026 grants and deductions.

Frequently asked questions

What do I need to get started?

The address of the property and little else. The cadastral reference is enough for us; we gather everything else during the visit.

How much does it cost?

It depends on the type and size of the property. We give you a fixed price before the visit, with the registration fee itemised. No surprises at the end.

How long does it take?

The visit is done in a short while and the calculation in a few days. Registration depends on the regional government (GVA): we commit to filing it complete and following it up until you have the label.

Does the certificate expire?

Yes. The expiry date appears on the label itself. If yours has expired and you want to sell or let, we prepare a new one.

What if my home gets a poor letter?

Legally, nothing changes: you can still sell or let. The upside is that the certificate tells you, measure by measure, what would improve the letter and the consumption.

Is it valid for the solar panel deduction?

Yes, if it is done properly: one certificate before the works and another afterwards, registered in time. We do both and hand you the paperwork for your tax return.

Get your energy certificate

Tell us which property it is and what you need it for. We give you a fixed price, fee included, and book the visit.

Get your certificate

A company of Captia Technology. Chartered, qualified engineers.

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