On the basis of a service agreement, ROVA takes care of the pruning work on the trees in the public space in the municipality of Zwolle. Through a systematic approach, ROVA ensures the development and maintenance of a vital and safe tree stock in an efficient and effective manner. Part of the work is carried out by the ROVA in-house and some of the work is put on the market.

All pruning work is carried out in accordance with the 2018 Trees Handbook, following the results of each annual BVC check. In a practical sense, this means that an external party carries out the check or recording and ROVA translates the results into a concrete sub-assignment.

It is important that approximately 12 percent of the tree stock falls within a peak time area. This means that limited window times apply for the execution of the work for those trees.

Experience shows that the annual pruning work has an order value between EUR 250,000 and EUR 300,000 excluding VAT.

Turnover guarantees do not apply.

- Area of the Municipality of Zwolle owns and manages approximately 72,000 trees. Zwolle is divided into three areas for tree maintenance. Some of the trees are pruned by ROVA, these are mainly the risk trees, some of the guidance and the trees in the central area. Every year, the contractor to be contracted prunes a large part (approx. 10,000) of the trees in one of the three sub-areas.