Insulate Correctly. Defy the Grid.

With 2030 EU regulations phasing out ‘F’ and ‘G’ energy certificates, upgrading your home’s thermal envelope is no longer just about comfort—it’s what keeps your property:

⚖️ Legal
🔑 Rentable
💶 Saleable

This site provides the straightforward, actionable advice you need to get it done right. We specialise in:

📐 Insulation Consulting
🌿 NZEB Envelopes
⚡ High-End, Off-Grid Capable Energy Systems (Residential & Industrial)
🏗️

The Shift to Consulting

ECS is a dedicated energy and natural insulation consultancy. Ten years ago, we started out spraying natural cork insulation down in Cádiz. To be frank, spraying is physically punishing work, and between the aching joints and needing reading glasses just to find the end of the spray nozzle, we simply got too old to keep doing it full-time. We handed that side of the business over to our trusted partners at BioReforma S.L., who now manage the contracting in Andalucía.

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Our Expertise Today

Today, operating from our base in Western Asturias, we focus entirely on what we do best: designing and building high-end, off-grid capable energy systems for residential and industrial use, and engineering breathable NZEB (Near Zero Energy Building) thermal envelopes using wood fibre, hemp, and cork renders. This is how you hit top-tier energy ratings without making the fatal mistake of trapping moisture in historic Spanish masonry with synthetic foams.

The Living Laboratory

None of our advice comes from a sales brochure. It is backed by trial, error, and real-world testing at our near-zero-energy (NZEB) showhouse in Asturias, which we use as a living laboratory.

We haven't completely retired from the dirt. While our regional partners handle the heavy lifting, we still get outside and play with our heavy machinery in the nice weather to maintain our skills. And on your projects, we don't just drop off materials and disappear. When requested, we work directly alongside your builders to provide hands-on technical support, troubleshooting, and on-site training so the systems go in right the first time.

Articles & Field Notes

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ECS Insulation Calculator — Eco Conil Soluciones
Eco Conil Soluciones (ECS)

Natural Insulation Calculator

Find the right breathable insulation for your project — sized to Spain's 2026 CTE building standards. We provide expert technical consultancy and nationwide distribution from Asturias, alongside dedicated restoration services in Andalucía.

Spain CTE 2026 Compliant
Where is your project?
We'll determine your CTE climate zone and required U-value targets automatically.
What are you insulating?
Select the wall or structure type. This determines which CTE U-value limit applies.
Choose your insulation
ECS stocks natural, vapour-permeable materials from Steico, von Hanf, Rockwool and Diasen.
Add a finish or substrate layer (optional)
A cork render, clay plaster or lime coat adds thermal mass and controls moisture. Recommended for historic buildings.
Your Insulation Performance

Wall Assembly

Climate Zone Detail

Ready to specify your materials?

ECS ships natural insulation nationwide from Barcelona and Asturias. Contact us for direct distribution, technical consultancy, or to discuss southern restoration projects.

This tool is for estimation purposes only. Calculations are based on generic material properties and steady-state physics. It does not account for thermal bridges, mortar joints, or site-specific conditions. Compliance with the Spanish Technical Building Code (CTE) requires a certified project by a licensed Architect.