How to Strip Paint from Brick: Methods That Work

Painted brick was the look of the early 2000s. Now you want it gone, and a quick swipe with a wire brush has already taught you that brick fights back. Knowing how to strip paint from brick without pulverizing the face of every brick or grinding out mortar joints requires picking the right method for your specific situation — interior versus exterior, latex versus oil, modern versus pre-1978 lead-bearing paint. Get the diagnosis right and a 300-square-foot wall can be back to bare brick in two weekends for under $500 in materials.

Test for Lead Before You Start

If the home was painted before 1978, EPA RRP rules apply and the paint is presumed to contain lead unless you test. A 3M LeadCheck swab kit costs $30 at Home Depot and gives results in 30 seconds. Positive results mean you need either a Certified Renovator (look up “EPA RRP contractor” in your area) or strict containment, HEPA vacuuming, and wet methods only. Dry scraping or grinding lead paint is illegal and dangerous, especially indoors where lead dust can poison children at concentrations as low as 5 micrograms per deciliter of blood.

Gel Paint Strippers: The Default for Most Jobs

For interior brick or small exterior areas, a paste-on gel stripper is the safest and cleanest approach. Top performers:

• Peel Away 1: Removes up to 30 layers in one application, $89 per gallon, covers 30 sq ft
• Smart Strip Pro: Biodegradable, methylene-chloride-free, $130 per gallon
• Citristrip: Mild citrus formula for newer latex paint, $24 per quart

Trowel on a quarter-inch coat, cover with the included laminated paper, and let it dwell 18 to 48 hours. The paint lifts when you peel the paper off. Stubborn spots get a second pass. Neutralize with diluted vinegar and rinse thoroughly so the stripper doesn’t keep eating into mortar.

Soda Blasting for Whole Facades

For exterior walls over 200 square feet, sodium bicarbonate blasting is faster and gentler than sand. Rental rigs from Sunbelt or United Rentals run $250 to $400 per day, plus $0.85 per pound of media. A typical two-story facade uses 800 to 1,200 pounds.

Soda blast at 40 to 80 PSI on soft brick, up to 100 PSI on hard fired brick. Tarp landscaping and windows because residue raises soil pH and can yellow plants for a season. Wear a respirator rated N95 or better and full eye protection.

Steam Stripping

Wallpaper steamers and dedicated paint-removal steamers like the SpeedHeater Cobra (about $599) soften latex paint at 230°F so you can scrape it off without chemicals. This is the safest method for lead-bearing paint because temperatures stay below the 1,100°F threshold that vaporizes lead. Slow going — about 8 square feet per hour — but effective on flat exterior brick walls.

Pressure Washing: Use With Caution

Power washing alone won’t strip well-bonded paint, but it can finish the job after a chemical pass. Keep pressure under 1,500 PSI and stay 12 inches from the surface. Higher pressures will blow out mortar joints, particularly in homes built before 1930 when lime-based mortar was standard. Repointing damaged joints later costs $8 to $15 per square foot.

What Not to Do

Skip these methods:

• Wire wheel grinders: Grind brick face away and create lead dust if pre-1978
• Sandblasting: Permanently damages the fired skin of brick, accelerating future water absorption
• Open-flame torches: Fire hazard, releases toxic fumes, and chars brick
• Muriatic acid: Strips paint but eats mortar and discolors brick

Mortar Joint Repair

Stripping often reveals damaged mortar that the paint was hiding. Inspect every joint with a screwdriver tip. Anything you can scrape out more than 3/8 of an inch should be repointed. Type N mortar (premixed at Quikrete for $9 per 60-pound bag) matches most residential homes built after 1920. Pre-1920 homes with soft brick need Type O lime mortar — use Type N and you’ll fracture the brick faces within five winters.

Sealing Bare Brick Afterward

Stripped brick is more porous than factory-fresh brick and absorbs moisture readily. Apply a breathable masonry sealer like Prosoco Saltguard WB or Defy Masonry Saver. Two coats, applied at least 24 hours apart, run about $0.40 per square foot in materials and extend the life of your strip job by a decade. Avoid film-forming sealers — they trap moisture inside the brick, and in freeze-thaw climates you’ll see spalling within three winters of how to strip paint from brick projects done without a proper breathable finish.

Realistic Timeline and Costs

The full process takes longer than most homeowners expect. A typical 400 square foot fireplace surround takes about 30 hours of active work split over two weekends — one weekend for application and dwell time, another for removal and cleanup. Exterior facades scale up dramatically. A two-story rowhouse front of 1,200 square feet runs 80 to 120 hours of DIY labor or $4,800 to $11,000 hired out.

Materials for a 400 square foot interior job:

• Two gallons of Peel Away 1 or Smart Strip: $180 to $260
• Plastic sheeting and painter’s tape: $35
• Putty knives, scrub brushes, neutralizer: $50
• Respirator with organic vapor cartridges: $45
• Disposal bags for stripped paint waste: $20

If lead is present, double the disposal budget and plan for HEPA vacuum rental at $80 per day.

Interior vs Exterior Considerations

Stripping interior brick (fireplace surrounds, accent walls) is dramatically more demanding than exterior work because of ventilation and protection. Cover floors with two layers of 6-mil plastic, mask off ceilings, and run exhaust fans pulling out a window for the duration. Use only low-VOC strippers like Citristrip or Smart Strip indoors — methylene chloride products are banned for consumer indoor use by EPA since 2019.

Exterior stripping has fewer ventilation worries but more weather constraints. Strippers need temperatures between 50°F and 90°F to work properly. Direct sun bakes the gel before it can penetrate. Aim for overcast days with mild temperatures, ideally in spring or fall.

When Stripping Isn’t Worth It

Honestly, some brick is better left painted. Interior brick that was sandblasted before paint, brick with extensive mortar damage already visible through chipped paint, and modern face brick from the 1960s and 70s often look worse stripped than they did painted. In these cases, repainting with a high-quality breathable masonry paint like Sherwin-Williams Loxon XP delivers a better outcome than fighting through a strip job that exposes ugly substrate.

Consider a small test patch — strip a 2-by-2 foot area in an inconspicuous location and judge the result before committing to the entire wall. This $30 experiment saves homeowners thousands when the underlying brick turns out to be unattractive.