I have a Pug , and he Pee's on Sofa Base . Please Help?

I have a Pug , he usually stays at home only and doesnt want to go out as its too hot here in india . he pee's a lot . we taught him either to pee in balcony or in washroom and sometimes he does that . but sometimes he Pee's on Sofa leg and Bed base too , and the smell is too bad and the Chrome paint of sofa leg has rust on in it due to his pee problem . so my main concern to ask you this how to stop him to pee at that specific spot. is there anything i can keep there or rub anything that he smell's it on that specific sopt and doesnt pee's there...its not that we dotn stop him from Peeing there , but he goes in washroom and Pee and as soon as he comes out from there he Pee's near bed then at sofa. he does pee a little but he does.. not everything but mostly he does so its v diff to roam after him all the time ...