Answer:
well it depends of several factors like dimensions, adding lights, moving plumbing and by moving plumbing I mean to relocate the toilet, vanity and tub. change all fixtures ,ceilings high, etc... many companies in VA ,MD and dc area for a 5'x8' that is a standard size for a bathroom ,would charge from $12000 to $18000 for a completely renovation. now if you are only looking to just update your bathroom that price would drop seriously like not moving any plumbing, adding new lights, replace tub ,etc...
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