Itu2019s difficult to assess the job just on square footage.What I would do is check the number of rooms and the details of each room to be cleaned. You could have a checklist noting the work needing to be done, how many hours and personnel it will take for each room including baseboards, vacuuming furniture, floors, and drapes, dusting, mopping, shutters, window wells, cobwebs, lots of shelves and knickknacks, etc. Fireplaces will require extra work because the mantel will have things on it and the doors tend to collect a lot of dust on the inside. Set a standard price for bathrooms depending on the size. You could have a set basic price for a bedroom, say, which includes changing the sheets and other basic stuff, and then add in the cost of the details accordingly.I have two u00e9tagu00e8res with collectibles and I always tell the cleaning gals that Iu2019ll pay extra when it needs cleaning. So you could do it that way too for things like the fridge, windows, etc.The most important thing to do is impress your clients with how immaculate and efficient your cleaning is. I love to hear those magic words, attention to detail. Ask your satisfied clients to post your info and reviews on local websites like Nextdoor.com. Thatu2019s how I find my cleaning ladies.