Construction and remodel cleans are awesome money makers.
Pricing - I usually go hourly on these as there a lot of variables, but oyu can also go in by the sq ft. Most places hope ro see prices around .35-1.25/sq ft for construction cleaning depending on the square footage. If the sq ft is smaller, the price per sq ft would be higher, and so on and so forth.
Operations - There is a LOT of dust. The floors may require a swing machine. You'll often need a scraper for glass and to remove protective coverings and stickers. Get a scope of work for each project agreed upon, even if you have to write it yourself (Chat GPT is the **bleep** for this)
If all else fails I'd be happy to help you. Just reach out.
Rick - President - Echo Janitorial Services