Can I paint over nicotine-stained walls in a New Brunswick home and what primer and how many coats do I need?

Yes, you can successfully paint over nicotine-stained walls, but proper primer selection is absolutely critical — regular latex primer will not block nicotine stains and they will bleed through your new paint within weeks.

Nicotine creates a sticky, oily film that penetrates deep into drywall and paint. This is especially common in older New Brunswick homes where smoking indoors was more prevalent. The yellow-brown staining you see on the surface is just the tip of the iceberg — nicotine has soaked into the wall material itself. Without the right primer, these stains will bleed through multiple coats of even the best paint, leaving you with yellow or brown patches showing through your fresh paint job.

The only primers that effectively block nicotine are shellac-based or high-adhesion synthetic primers specifically designed for stain blocking. Zinsser BIN (shellac-based) is the gold standard for nicotine — it's available at most paint stores across New Brunswick for $45-65 per gallon. Kilz Original (oil-based) and Zinsser Cover Stain are also excellent options. These primers chemically seal the nicotine so it cannot migrate through to your topcoat.

Before priming, you must clean the walls thoroughly. Mix TSP (trisodium phosphate) or a heavy-duty degreaser with warm water and wash all surfaces to remove the sticky nicotine film. Rinse with clean water and let dry completely — this step is not optional. Painting primer over uncleaned nicotine film will cause adhesion problems.

Application process: One coat of stain-blocking primer followed by two coats of high-quality latex paint is the standard approach. However, heavily stained areas (around where ashtrays sat, near smoking chairs, or rooms where people smoked for decades) may need two coats of primer. The primer will have a strong odor during application — ensure excellent ventilation and consider using a respirator. Winter is actually ideal timing for this project in New Brunswick homes since you can run exhaust fans and open windows briefly for air exchange without losing too much heat.

When to hire a professional: If the nicotine staining covers an entire house, or if you're sensitive to strong odors, consider hiring a professional painter. They have spray equipment to apply primer more efficiently and experience working with stain-blocking products. For a single room or moderate staining, this is a manageable DIY project with proper preparation and the right primer.