Portland doesn't have a license file on this site to search, so below is a ranked list of its 10 highest-rated bathroom contractors on Google Maps instead. Ranked is not the same as checked: run any name through your state's or city's own lookup before you decide anything. A high star average says nothing about whether a business holds the license or registration your state or city requires.
Portland bathroom contractors, ranked by Google rating, not searchable by license
The order below gives review volume nearly as much weight as the star count, since there's no license file here to search; treat it as a starting point, never as proof of a license or registration, and run the name yourself before you sign anything.
Sparrow RemodelingBathroom remodeler · ★ 5.0 out of 5 on Google · 41 Google reviews · Not listedGoogle reviews
Mr. Handyman of Greater PortlandHandyman/Handywoman/Handyperson · ★ 4.8 out of 5 on Google · 373 Google reviews · Portland 04103Google reviews
Ethos Carpentry, Inc.Bathroom remodeler · ★ 4.8 out of 5 on Google · 41 Google reviews · Not listedGoogle reviews
Soler ConstructionBathroom remodeler · ★ 5.0 out of 5 on Google · 16 Google reviews · Portland 04102Google reviews
Cousins Co.Bathroom remodeler · ★ 4.9 out of 5 on Google · 18 Google reviews · Portland 04103Google reviews
Mainely Renovations LLCConstruction company · ★ 5.0 out of 5 on Google · 13 Google reviews · Portland 04103Google reviews
Kitchen Cove Design StudioBathroom remodeler · ★ 4.7 out of 5 on Google · 56 Google reviews · Portland 04101Google reviews
O'Brien Wood & IronConstruction company · ★ 5.0 out of 5 on Google · 11 Google reviews · Portland 04103Google reviews
Portland Renovations, Inc.Bathroom remodeler · ★ 5.0 out of 5 on Google · 7 Google reviews · Portland 04103Google reviews
Fore River RemodelingRemodeler · ★ 5.0 out of 5 on Google · 3 Google reviews · Portland 04103Google reviews
Before you search, know what to look for
Does the license status say active, not expired, suspended or revoked?
Does the business name and license number match exactly what is on the bid or contract?
Is there any disciplinary history attached to the license, and if so, what was it for?
Does the license class actually cover bathroom work, or is it a different trade entirely?
Is the bond or insurance information on the record current?
Does the address on file match a real, current place of business?