Door-to-door sales of sustainable products
Is a salesperson coming to your door to offer advice on energy savings, the net metering program, or home improvements? Or are you receiving an offer for, say, insulation, a home battery, or other energy-saving measures? Some companies mention the municipality in their communications or refer to municipal policy. However, the municipality of Opsterland does not collaborate with commercial door-to-door salespeople selling sustainability products. These tips will help you know what to look out for and ensure you’re well prepared.

Is someone at the door? Do this
- Ask who is at the door and verify their identity at
. Ask for their name and the organization they represent, and have the person show identification. Does someone claim to be an energy coach or energy advisor from the municipality of Opsterland? Our website lists our energy coaches and energy advisors with their photos, names, and contact information. This way, you can verify whether someone really works for the municipality. Still not convinced? Then contact the municipality’s energy office yourself. You can call the OWO Energy Office at 06 – 222 788 53 or email energie@opsterland.nl - Don't make a decision right away
You don't have to agree to anything at the door. Don't sign anything and don't pay anything if you're unsure. Ask for information that you can review at your leisure. - Did you end up signing a contract or making a purchase?
In many cases, a legal cooling-off period applies to door-to-door sales. Check as soon as possible to see which rules apply to your purchase or agreement. - Report Suspicious Situations
Do you think someone is misleading residents or falsely claiming to work on behalf of the municipality? Report this to the OWO Energy Office at 06 – 222 788 53 or energie@opsterland.nl. You can also report misleading or aggressive sales of sustainability products to the Association of Homeowners’ (Vereniging Eigen Huis) Hotline for Unfair Sales at.
Here's how our energy coaches and energy explorers work
Our independent energy advisors and volunteer energy coaches provide residents with free, reliable advice on energy conservation and insulation.
They will never show up at your door unannounced. You will receive a letter or postcard in advance, or the appointment will have been scheduled with you beforehand by phone or email.
Would you like to verify whether someone is truly representing the municipality? If so, please check our website for the photo, name, and contact information of our energy advisors and energy coaches. If you have any doubts, you can always contact the OWO Energy Office. You can reach them by phone at 06 – 222 788 53 or by email at energie@opsterland.nl.

