Compare quotes by ceiling type, because paint changes the rate. Our Guelph pricing is $4.50/sqft for unpainted popcorn, $6.50/sqft for latex-painted and $7.50/sqft for oil-base painted. Example: a 400 sqft living area and hallway that is unpainted is 400 x $4.50 = export const FAQ_ANSWERS: FAQAnswer[] = [,800. Skim coat only is $2.50/sqft, or $3.50/sqft full service. Ceiling painting is export const FAQ_ANSWERS: FAQAnswer[] = [50 to $400 per room, priced per room, not per sqft. Ask every contractor whether patching, skim coating, cleanup and paint are included. Call (519) 729-7394 for a written Guelph quote. Guelph popcorn ceiling removal · Full Ontario cost guide · See our Google reviews