Energy efficiency




We help you manage the entire process of energy efficiency projects: from energy audit to verification of the savings. In Factor4 vocabulary, this a Plus+® project.


We look for the best opportunities.

Relighting, boiler renovation, improved control systems for HVAC, insulation, air pressure, ventilation, green ICT, renewable energy, … they are all on the ‘longlist’ to be investigated.
The result of the initial analysis is a ‘shortlist’, with an investment and a savings plan.

We take action.

We continue with the measures you want to take, independently from suppliers or installers. We select the best and most efficient way to turn the savings into reality. Some things you can do yourself, others can be done by us, and the rest will be subcontracted.

We measure the result.

After the implementation phase, we start evaluating the results. We measure and verify the savings we claim. In most cases, we even guarantee the result. Using appropriate energy monitoring tools, we keep following your energy consumption and alert you when something goes wrong.

Thanks to the energy savings projects that we initiated in several buildings and production facilities, our customers are now making a yearly net profit. Our performance-based maintenance approach allows them to book this profit on a yearly basis.

Kristof Descheemaeker


Relevant services

Performance contracting

We help public authorities and building managers set up EPC and ESCO projects.

Read more

Design and optimisation

We design and develop energy-related components: from conceptual design over detailed drawings to procurement documents. We take on new designs and optimize existing installations. Read more

Measuring performance

We measure building performance using different tools, from sensors over audits to comfort surveys. Read more

Our clients

Office in Belgium
Lange Winkelhaakstraat 26
B-2060 Antwerp
T +32 3 225 23 12
Find out here how to reach us and where to park.
You can leave your bike in a locked area in the building.

VAT 0884 068 589
IBAN: BE38 7380 3377 0772
RPR: Mechelen
Terms and conditions

Contact us