Flat or apartment
To sell or rent a home in an apartment block. Up to 100 m².
We visit the property, measure it, run the calculation with official software and register it with the Principality of Asturias. All you do is open the door.

Tap the options. The price updates with every answer and we confirm it in writing within 24 h.
We copy these details into the form. You just add your name and contact details.
To sell or rent a home in an apartment block. Up to 100 m².
Detached or semi-detached single-family home.
Small commercial premises. Heating, cooling and lighting are checked.
Owners’ associations applying for renovation grants.
All include the visit, calculation with Ministry-approved software, the energy label and registration.

The certificate measures how much energy the property needs and how much CO₂ it emits, and sums it up as a letter from A to G. It is mandatory to sell or rent, and the label must appear in the listing. Tap a letter to see what it means.
Travel is included up to 20 km. Beyond that, you see it added in the calculator before you ask for anything.
| Gijón | 0 km | ||
| Carreño | 14 km | ||
| Siero | 20 km | ||
| Sariego | 21 km | ||
| Llanera | 22 km | ||
| Corvera | 23 km | ||
| Avilés | 25 km | ||
| Oviedo | 29 km | ||
| Villaviciosa | 30 km | ||
| Nava | 34 km |
With the calculator or by phone. Within 24 h you get a fixed written quote.
Between 30 and 60 minutes. We measure and check windows, boiler and insulation. This is the part you’re there for.
You receive the certificate as a PDF, the label for your listing and proof of registration.
If something at the visit doesn’t match what you told us, we tell you before going on. No surprise charges.
Certificate delivered within 5 working days of the visit.
If we make a mistake, we fix it and re-register at no charge.
We handle the official registration and send you the receipt together with the certificate.
VERTIAN SOLUTIONS was born from a simple idea: measure before starting and say what it costs. The name comes from the vernier, the calliper scale that lets you read tenths of a millimetre where the naked eye sees a single line. That is how we want to work: look closely, with data, before giving a figure.
We do three things that look different but share the same core: energy certificates, affiliate marketing, and apps with automation. In all three, whoever hires us needs to know what they will get, what it will cost and how to check the result. In a certificate it is a letter from A to G; in affiliate marketing, what lands in your account each month; in an automation, the hours that come back to your week.
We are a small company and we say so plainly. You talk to the person doing the work, not to a switchboard. We prefer a fixed quote to a surprise on the invoice, and a report you can understand to one that tries to impress. We work in person in Gijón and the Ribera Alta, and remotely across Spain.
We don’t have a long client list yet, so we don’t ask you to take our word for it. We give you facts you can check before hiring us.
Yes. Royal Decree 390/2021 requires the technician to visit the property. A certificate issued without a visit can be rejected and exposes you to a fine.
We reply within 24 h, visit within 1 to 3 days and deliver within 5 working days of the visit. With the urgent option, 48 h after the visit.
You can still sell or rent. The certificate includes improvement recommendations sorted by cost, useful if you plan to apply for renovation grants.
It doesn’t have to be you. Anyone who can let us in will do: a relative, the tenant or your estate agent.
The address and, if you have it, the cadastral reference (it’s on the IBI property tax bill). Invoices for new windows, boiler or insulation help improve the result.
Because we work transparently: invoices from VERTIAN SOLUTIONS, S.L. with a tax ID and a registered technician. And because the price is fixed in writing before the visit.
We reply within one working day with a fixed price.