Eko sklad 2026: preparing an apartment building for energy renovation
The 2026 Eko sklad call for apartment buildings includes the possibility of a zero-interest loan repaid through the building’s reserve fund. It can help owners carry out energy renovation that has been planned for years. In practice, however, difficulties often arise from incomplete technical documentation rather than financing alone.
A successful renovation depends on choosing a suitable contractor and preparing the necessary technical information in good time.
What should the building manager arrange before applying?
Before collecting quotations, it is useful to check:
- whether existing drawings of the building are available;
- which measures the unit owners intend to carry out;
- whether PZI construction documentation is required;
- whether a bill of quantities needs to be prepared;
- whether professional construction supervision has been planned;
- whether the necessary owners’ consents are in place;
- whether the reserve-fund arrangements are suitable.
Early preparation usually means fewer implementation queries and more comparable contractor quotations.
When is PZI documentation needed?
PZI documentation is often required or advisable for energy renovation of apartment buildings. The exact requirement depends on the works and the conditions of the relevant funding call.
It is especially relevant for façade renovation, flat and pitched roofs, complex thermal-bridge details and high-rise buildings with additional fire safety requirements.
A well-prepared PZI package helps contractors price the same scope, giving the client a sounder basis for comparing offers.
Why does a good bill of quantities matter?
The bill of quantities is a basis for contractor quotations. Without a clear common scope, offers may be difficult to compare because one contractor includes work that another leaves out.
A useful bill of quantities defines:
- the type and thickness of thermal insulation;
- finishing coats and other finish layers;
- sheet-metal and flashing work;
- fire barriers;
- window and door reveals;
- repairs to the substrate;
- junction and edge details;
- all associated work needed for complete execution.
Unit owners can then make decisions on genuinely comparable quotations.
Why is professional construction supervision important?
Construction supervision involves more than occasional site visits. The supervisor monitors whether work follows the documentation, bill of quantities and applicable technical requirements.
On energy renovation projects, the checks include:
- the suitability of installed materials;
- insulation type and thickness;
- fire-barrier installation;
- the quality of finish layers;
- critical construction details;
- consistency between the completed work and the design.
Timely checks can identify defects while they are still easier to correct. Repairs after completion can involve additional cost and disruption.
How is an energy renovation project prepared?
- Review the existing building condition.
- Define the scope of the measures.
- Prepare the project documentation.
- Prepare the bill of quantities.
- Obtain contractor quotations.
- Arrange the unit owners’ decisions.
- Submit the Eko sklad application.
- Carry out the works.
- Provide professional supervision during implementation.
- Prepare the evidence required at completion.
What is new in the 2026 funding arrangement?
A significant feature is the possibility of interest-free financing for the remaining investment, subject to the call’s eligibility and loan conditions. The arrangement described in the 2026 call includes a fixed 0% annual interest rate, a repayment period of up to ten years and repayment through the building’s reserve fund.
This can help owners move forward with projects previously delayed by financial constraints. Consult the official 128VSSRS26 call for the current terms, status and application documents. The linked official documentation is in Slovenian.
Common mistakes in energy renovation
Common problems include collecting quotations without an adequate bill of quantities, preparing drawings that do not reflect the actual building, and failing to arrange appropriate professional supervision.
The consequences can include offers that cannot be compared, additional work, longer programmes and poorer workmanship. Preparing the technical information early can substantially reduce these risks.
How can XPLAN help?
XPLAN supports the preparation and implementation of energy renovation for apartment buildings. Our services include:
- PZI construction documentation;
- bills of quantities;
- technical support for building managers;
- review of contractor quotations;
- professional advice for unit owners;
- construction supervision.
Our aim is to develop appropriate technical solutions, establish a comparable basis for quotations and monitor workmanship through to completion.
Do you need help preparing a project?
Energy renovation is a long-term investment. Project documentation, quantities and supervision should be planned professionally and in good time.
If you are preparing an Eko sklad application or planning an apartment-building renovation, contact XPLAN. We can review the proposed work and prepare the technical information needed for a well-organised project.
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