Stucco is a surface with its own rules
Painting stucco isn't the same as painting wood siding. Stucco is porous, textured and rigid. It soaks up primer and paint, its texture eats material and labor, and it cracks as a house settles and as it heats and cools. A stucco repaint is priced around those traits: how much cleaning and crack work the walls need, which coating goes on, and how much trim and detail surrounds the walls.
Washing and the water you wash with
Every stucco repaint starts with cleaning: dirt, dust, chalky old paint and any mildew have to come off for the new coat to bond. Most crews use a pressure washer or a garden-hose wash with a cleaner, then let the walls dry.
Las Cruces Utilities' 2020 report on the city's water says small amounts of naturally occurring minerals dissolve into the water and account for moderate levels of calcium, manganese, and iron, and calls this the common "hard water" typical of groundwater sources in the Southwest; the report states no numeric hardness value. Hard water can leave a mineral film when it dries on a surface, and lawn sprinklers that hit a wall can leave white or rusty marks near the base. A painter should check for those deposits after washing and clean them off before priming, because paint and primer bond to the deposit, not the stucco beneath it. Ask how they'll handle sprinkler marks and whether a rinse or cleaner is part of the plan.
What drives the price
Cracks. Hairline cracks are common in stucco and are usually filled with a flexible patching product or bridged by a thick coating. Wider cracks, or cracks that open and close, may point to movement a painter can't fix with paint. Ask which cracks the painter will repair and which they'd want someone else to look at.
Patches and damaged areas. Holes from old fixtures, broken corners and spalled spots need stucco repair. New patches must cure before paint, and their texture should be matched so they don't show.
Primer. New patches and chalky or porous areas usually need a masonry primer. Some coatings are self-priming over sound paint; ask which the painter plans.
Coating type. Acrylic exterior paints and thicker elastomeric coatings both go on stucco. Elastomerics are heavier, bridge fine cracks and need more material per wall, so they cost more. They also trap moisture if a wall can't dry, which is why a painter should explain the choice.
Texture and method. Rough textures take more paint and are usually sprayed and then back-rolled to push the coating into the surface. Smooth finishes may need more care to avoid lap marks.
Trim, eaves and details. Wood fascia, window trim, doors, beams, vents and metal railings each need their own preparation and products. On some houses the trim takes longer than the walls.
Access. Single-storey walls can be done from the ground or short ladders. Higher walls, parapets and areas over landscaping need taller ladders or scaffolding.
Older paint and the federal rule
Before 1978, some paints contained lead, and scraping or sanding them makes dust. U.S. EPA describes the rule: under EPA's Renovation, Repair and Painting Rule, anyone paid to do work that disturbs paint in homes, childcare facilities and preschools built before 1978 must hold RRP certification, firms included, even sole proprietorships, and their workers must be trained in lead-safe work practices. If your house was built before 1978, ask the painter how they'll contain debris and clean up.
What to ask for in writing
- The walls included, their square footage, and the trim listed separately.
- The cleaning method, and how mineral and sprinkler deposits will be removed.
- Crack and patch repairs, with which ones are excluded.
- The primer and coating by product name, and the number of coats.
- Spray, roll or both, and how windows, doors and plants will be protected.
Our page on exterior painting explains preparing masonry and stucco, and the pricing guide shows how this job compares with others.