We are an engineering firm based in Xàtiva. We work within a 40 kilometre radius: close enough to come to your house, survey your roof in person and come back whenever needed. We do not go further, because we could not keep our promises if we did.
That covers the whole of La Costera plus the Vall d’Albaida, the Canal de Navarrés, the Ribera Alta and part of La Safor. A comarca, by the way, is a traditional Valencian district: a group of neighbouring towns. If your town is not on the list, ring us and we will tell you straight.
These are the municipalities where we install and handle the paperwork. We are preparing a page for each town, covering its procedure and its tax reductions. Each one goes live only once we have checked its details against the current municipal by-law, not before.
Some councils knock a share off the local building works tax (the ICIO) and off IBI, the annual property tax, for a few years if you install solar panels. But every town regulates it in its own way: the percentage, the years, the requirements and the caps change from one by-law to the next, and sometimes from one year to the next.
That is why you will not find loose figures copied from other websites here. We only publish a figure once we have read it in that council’s current by-law, with its verification date. We are reviewing the by-laws one by one, starting with La Costera.
Want to know what applies in your town? Ask us. We check the by-law and tell you with the source in front of us. And if we do your installation, the paperwork for the reduction is included in our permits and legalisation service.
Beyond the council, there are also income tax deductions, which do not depend on your town hall. We explain them in grants and deductions 2026.
Tell us where you live and what you pay for electricity. We will tell you whether we reach you and, if we do, we will survey your roof. Before deciding anything, you can look at installations we have already completed.
A Captia Technology company. Qualified, chartered engineers.