Bonarius Reviews 142

If you are considering renting an apartment in the Netherlands, there is one question you must ask before signing any lease: Which company maintains the heating system?

My experience—and that of many others—exposes Bonarius as perhaps the most dangerously incompetent technical service provider operating today. Advertised as experts in installing and maintaining central heating, they instead gamble with systems they do not understand, creating a cascade of problems for those unlucky enough to be under their "care."

This is not just poor service—it is a prolonged ordeal.

Here is what you can expect if Bonarius is responsible for your heating:

Endless, Fruitless Visits: When your heat fails, they will arrive—repeatedly—without the correct tools or knowledge to repair it.

A Cycle of Incompetence: They will spend their time on the phone, scrambling for parts, while you lose half a day waiting. They will leave, only to return weeks later again unprepared.

Weeks or Months of Disruption: What should be a simple fix becomes a painful journey stretching over weeks, if not months, without reliable heat or hot water.

This problem is systemic. Many landlords, seeking the cheapest option, hire Bonarius. As a tenant, you pay the real price: your comfort, time, and peace of mind.

Protect yourself. Before you sign a lease:

Demand to know the servicing company.

If it’s Bonarius, negotiate a discount. You will need it for the immense hassle you are guaranteed to endure.

Steer clear of Alliantie properties. They are partners with Bonarius, and their tenants are left to suffer the consequences.

Do not let your winter become a nightmare of missed appointments and freezing rooms. Choose wisely, because with Bonarius, the only thing you can rely on is their failure to deliver.

We had an appointment with Bonarius today to install a mechanical ventilator to link to our bathroom. To get to here we had to work through multiple appointments, where the wrong installers were sent, and they had to call to other departments. Two of these appointments were delayed as well. Our experiences before were already bad, where they did not show up, or had the wrong equipment with them.
Today we were notified that the mechanic had been at our door, and we weren't home. We had been home the entire time and the doorbell wasn't rang. Apparently they knocked on the window, but my partner was working from the room they supposedly knocked on the window, so that is implausible. Especially since this is not the first time, it is very annoying. Having to stay at home, waiting, them not showing up on time, or not at all.

i live in the NL. a few years ago my apt was renovated and a new central/hot water system installed. Bonarius was to do the maintenance.
the first time was 2 yrs after the installation...the maintenance person came, did the heater part and then couldn't get to the ventilation part because it's above the ceiling in the toilet room.
so that was that, until recently when it was to be done again...i spoke to them and told them what happened the first time and they said that i needed to speak to my housing association.
so i called the association and they sent someone who took the ceiling down...
the earliest appointment i could get from Bonarius, thereafter, was more than 2 months later. Today.
so the mechanic comes, cleans the unit, puts it back together and...nothing. it isn't working...i think he did everything right but it won't work when the on button was pushed...
so he confers with the people back in his office and...'we're going to order a new motor and install it within 2 weeks'.
2 weeks. when i called their office to ask if it could be done any faster, given that the unit gets used, pretty much daily, they said they'll get in touch with me when they get the motor.
luckily, it wasn't the water heater part.
avoid using this company if possible.

Central heating unit was producing error codes. Called Bonarius early the next day and explained the situation, after confirming we had already done the sensible checks engineers were dispatched immediately. They arrived within the hour and started their repairs. There was a junior present who was skillfully and patiently being taught the job which was in no way a problem for us. Eventually the fix and cause were explained to us in a quick chat and we signed off on the repair.

Very efficient and pleasant experience.

i cant tell how terribly they are operating, i bought a flat where there was bonarius boiler and previous owner canceled his contract and on my day 1 , heating system wasnt working so i called bonarius and they told me that they cant help me as previous owner cancelled his contract and they cant make any new customers due to unknown reasons. that s awful way of making people freeze in such winter nights.boiler is brand new and they deny to help even thought it s within the guarantee period . what is my fault here ?