Wood paneling was a fixture of Gwinnett County houses built in the 1960s, 70s, and early 80s: knotty pine in basement rec rooms, dark grooved sheets in the dens of Lilburn and Norcross ranches, and the family-room wall around a brick fireplace in the split-levels off U.S. 78. Much of it is still there, and the usual question about it is whether it can be painted instead of torn out. Usually it can, and painting is quicker, cleaner, and far less expensive than removal, partly because the wall behind a lot of that paneling was never finished.
What kind of paneling it is
The preparation depends on the material. Solid boards, such as knotty pine or cedar, are real wood with real knots, and the knots bleed resin and tannin through ordinary primer as yellow-brown spots. Most paneling from the 1970s, though, is thin sheet paneling: plywood or hardboard with a printed wood-grain face and a slick factory finish that paint will not grip without help. A look at a panel edge behind a switch plate tells which is which, and the walk-through settles it before the quote.
Primer is the whole job
Paneling is washed first, because decades of kitchen air and smoke leave a film no primer bonds to, and the glossy face is scuffed with a sanding sponge. Knotty pine and any wood with stains or tannins gets a shellac-based primer, which seals the knots so they do not ghost through the topcoat months later. Printed sheet paneling gets a bonding primer made for slick surfaces. Two finish coats go over the primer, usually in a washable eggshell or satin, and most owners pick a light warm white or a soft neutral, since the point is to brighten a dark room; picking the exact shade is where a color consultation helps.
The grooves: keep them or fill them
The vertical grooves give paneling away. Painted, they read as board-and-groove cottage paneling, which many owners like and which costs nothing extra. Filling them with compound or flexible filler to fake a flat wall is possible but slow, and the filled lines tend to reappear as hairline cracks as the panels move with the seasons. A skim coat over the whole wall, or new drywall, is the honest route to a truly flat surface, and the quote lays out the difference in time and cost.
Older dens and the lead rule
Paneling put up before 1978 may carry an old finish that contains lead, especially where it was painted or varnished in place rather than bought prefinished. Scuff-sanding counts as disturbing the surface, and beyond a small area Georgia's lead renovation rules reserve that work for a state-certified renovation firm, so the build year comes up on the first call. In the Snellville and Lilburn houses where paneling is most common, the walk-through also notes the outlet and switch covers that come off for painting; anything beyond removing a cover plate is a licensed electrician's job in Georgia.