About us

We make the heat transition
affordable for owners.

Large housing companies switched their heating long ago without investing their own capital: more than 55,000 residential units already run on heat supply at a fixed price. For private and mid-sized owners this model was hardly accessible. Kola NetZero changes that.

  • 55,000+residential units already in the model
  • €0investment for owners
  • 6+residential units per property
Who we are

From property owners, for property owners

Kola NetZero is a Hamburg company. Behind us is a family office focused on real estate, Kola Invest GmbH.

We know owners' questions from our own experience: rising energy costs, poor energy classes, banks asking for the energy certificate with every financing, and retrofits that do not pay off. That is exactly why we built Kola NetZero.

Kola NetZero office in Hamburg-Winterhude
Our office in Hamburg
Gertigstraße 14a22303 Hamburg
What we do

We make your portfolio green. Without you investing.

01

Assess

We review the energy certificate and statements and tell you within a few days whether your property qualifies.

02

Calculate

We compare your current costs with the fixed price and give you a clear comparison.

03

Accompany

From site visit to offer to contract we are your contact. In person, not through a call centre.

Our promise

What you can hold us to

  1. Free for owners

    From the first check to the offer you pay nothing.

  2. Transparent

    We are paid by the provider, not by you. We say so openly.

  3. Honest

    If your building does not fit, we tell you directly.

Reference projects

From energy class G to B in under a week

Two apartment buildings in Rhineland-Palatinate, converted without any investment by the owners. The existing boiler stays in the system, the heat pumps cover most of the heat generation.

Project 01 · Rhineland-Palatinate

Apartment building, 6 residential units

6residential units
2heat pumps
4days to complete
Energy classG→B
Final energy, kWh/a124,685→31,171−75%
CO₂ emissions25.1 t/a→0 t/a−100%
CO₂ costs 2028€3,007→€0
Project 02 · Rhineland-Palatinate

Apartment building, 12 residential units

12residential units
4heat pumps
5days to complete
Energy classG→B
Final energy, kWh/a182,722→45,680−75%
CO₂ emissions36.7 t/a→0 t/a−100%
CO₂ costs 2028€4,407→€0

Figures according to the heat provider's project documentation. CO₂ on a balance-sheet basis under BEHG. Energy class indicative. Property data anonymised.

Contact

Your contact

Julian Labandowsky

Julian Labandowsky

Founder

Contact for owners and partners

Partners

Together with brokers, managers and advisers

We work with partners who know owners locally. They bring the contact, we take care of assessment, calculation and support.

Become a partner
Contact

Let us talk about your property.

Assessment, site visit and offer are free of charge and without obligation for owners.

Check property for free netzero@kola-invest.comGertigstraße 14a, 22303 Hamburg