During construction, get the building stabilized with regard to temperature and humidity prior to installation of finish materials and interior trim.
You may be able to renew a dull finish without completely refinishing the floor. Still, some hardwood floor manufacturers recommend that only professional refinishers tackle the job. If you decide to do it yourself, begin by sweeping with a good broom and then vacuuming the surface. Next, use a buffer with an abrasive pad and/or fine-grit sand paper until the finish feels smooth. Another option would be to use a rectangular oscillating sanding machine. Hand-sand any areas that remain rough or irregular. Keep in mind that you want to lightly sand the top coat of the finish, not sand through it. Remove dust by sweeping, vacuuming and wiping the floor with a lint-free towel slightly dampened with water. (Make sure the towel has not been treated with fabric softener or anything else.) Allow the floor to dry completely before applying a single coat of polyurethane finish. Check with the manufacturer of the new finish if youâ€™re not sure itâ€™s compatible with the finish already on the floor. For a waxed floor, apply a mineral-spirit based renovating product and buff with a No. 1 steel wool pad. Allow the floor to dry completely. Next wax and buff. Keep in mind that these steps will brighten the appearance of the finish, not lighten the wood itself.
Need to replace your trusty old level? You can check it for accuracy. Lay one working edge on a flat surface and check the bubble. Swap it end for end, then check the bubble again. It should be in the same position. Now try the opposite working edge. Take a reading, switch end for end, and take another reading. The bubble should be in the same position. Likewise check for plumb by holding it against a flat vertical surface.