They knew where the cameras all were...they managed to mostly avoid getting filmed. 

If you are looking for marketing and content generation then maybe just film some clips of a job you are on. 

The strategy was to list the property, market it to our network of corporate contacts, and soon gain a three-month booking from a known film director in town for a project.

I work in the film industry and now have a stable job with a production company I love.

I have a creative community and many of them have jobs in the serving or entertainment or film industry.

Go to Shermin Williams stores and buy a "wet film thickness gauge". 

You don't need a professional filming you, it can be as simple as filming yourself with your cell phone.

The film isn't supposed to be a how-to guide....

Next time, work on clear instructions for your vendor: control the dust by covering vents, taping up plastic film at the door to the renovated room, and make them include cleanup in their fixed bid. 

If you need any background on me, I'm a film/game/trailer composer and am the music supervisor of a trailer music library.