01Patras — Agyia · 13 May 2026
Full apartment renovation
- Apartment
- Full renovation
- Delivered 2026
01 / EXOIKONOMO 2026
Upgrade your home.
Pay less.
End-to-end subsidy management and home energy upgrades in Achaia since 2010.
0+Applications handled
0+Projects delivered
0Founded
“A flawless energy upgrade.”N. M., Nafpaktos
0+Exoikonomo subsidy applications handled
Since 2010
02 / HOW WE WORKFrom the paperwork
From the paperwork
to after-sales.
01
Paperwork
We gather every supporting document the Exoikonomo programme requires and check it for accuracy and completeness, so it meets the Ministry’s requirements first time.
02
Energy Inspector
Our certified energy inspector visits your home to record its energy needs in full.
03
Energy Study
We analyse the data, model your home’s energy footprint and prepare technical and financial proposals.
04
Application
We submit the application and documents to the Ministry and handle the bank registration if you need loan financing.
05
Works
Windows · Insulation · External wall insulation · Heat pumps · Solar water heaters · Air conditioning · Smart home. EU-certified materials.
06
After Sales
We stay by your side for anything you need once the works are complete.
03 / TOOLS & GUIDES
Run the numbers yourself, before you call us.
Tool
Solar PV Calculator
Your own solar system or PPC SolarSmart? The only calculator in Greece that also checks shading from neighbouring buildings. Enter your address and see output, cost and payback.
Start calculating
Tool
Start calculatingHeat Pump Calculator
How much do you save versus oil, gas or pellets? Annual savings, indicative cost and CO₂ reduction by climate zone.
Tool
Start calculatingEnergy Class Upgrade
Insulation, windows, heat pump, solar water heater: how your home’s energy class changes and what each measure earns you.
Tool
Start calculatingExoikonomo Eligibility Check
Answer 5 questions and find out in 1 minute whether you are likely eligible for Exoikonomo 2026 and which measures are covered.
Tool
Start calculatingRenovation Cost Calculator
A live estimate with real Western Greece prices per job, plus an eligibility check for the Anakainizo-Noikiazo and Anakainizo 2026 subsidies.
Guide
Read the guidePPC SolarSmart: Is it worth it? A full independent analysis
An independent look at PPC SolarSmart: how the rental model works, the 10-year lock-in, and when it beats owning your own system.
Guide
Read the guideExoikonomo 2026: Utility provider or engineer?
What changes in Exoikonomo 2026 (the national home-energy subsidy), how the grant works and why it matters who manages your application.
Guide
Read the guideHeat pump or oil boiler?
Heating cost, payback and comfort compared for a typical Western Greece home, with real numbers.
Guide
Read the guideSolar PV without a subsidy: does it pay?
Net metering, installation cost and payback when you are not waiting for a programme: when it makes sense to go ahead on your own.
04 / CIVIL ENGINEERING SERVICES
The paperwork, taken care of.
Building e-ID
We handle the entire process of issuing the electronic identity for your property.
Learn moreUnpermitted Works Legalisation
Correct legalisation of unpermitted structures and calculation of the settlement cost.
Learn moreEnergy Performance Certificate
Issuing an energy performance certificate to the Ministry of Environment and Energy specification.
Learn moreSmall-Scale Works Permit
Issuing a small-scale works permit for your project.
Learn more05 / OUR REGIONAL REPS
Close to you, wherever you are.
GP
EK
06 / OUR REGION1,150+ Projects
1,150+ Projects
in Patras, Nafpaktos and Aigio.
Patras
820Nafpaktos
210Aigio
12007 / CUSTOMER STORIES
Homes we upgraded.
02Patras — Psila Alonia · 2 April 2026
Apartment energy upgrade
- Apartment
- Energy upgrade
- Delivered 2026
03Patras — Begoulaki · 15 June 2022
Two-storey house, 360 m²
- Built 2005
- 360 m²
- Full upgrade
04Patras — Paralia · 10 June 2022
Two-storey home with zero running costs
- Built 1982
- 102 m²
- 100% energy upgrade
08 / SOLAR PV INSTALLATIONSRooftop solar on homes
Rooftop solar on homes
across Western Greece.
PatrasAgios Ioannis Pratsika
4.90 kW
PatrasZarouchleika
4.90 kW
PatrasZarouchleika
4.95 kW
PatrasZarouchleika
4.95 kW
PatrasAgyia
4.95 kW
PatrasAgios Vasileios
6.89 kW
PatrasAgyia
4.86 kW
NafpaktosSkala
9.66 kW
KefaloniaArgostoli
10.80 kW09 / WHAT OUR CUSTOMERS SAY
Many thanks to Estia for a flawless collaboration. A reliable team with very courteous, highly trained staff and real professionalism. A perfect energy upgrade of my home with top-spec materials and, most importantly, technical support even after the works were finished.
N. M.Nafpaktos
22 March 2026Thank you Estia for upgrading my home. Everything was done remarkably fast, with professionalism and consistency.
V. L.Monodendri, Patras
26 February 2026We are happy to help
with any question you have.
We stand by you at every stage of the Exoikonomo programme, so you never have to deal with the paperwork.
10 / OUR SUPPLIERS
We work with the leading suppliers in the field and use certified materials that meet EU specifications.
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