Someone calls us up and says, "I want to do something with my brick — either limewash it or just paint it. What's the difference in cost?" It's one of the more common questions we get, and the honest answer is: it depends on whether you're talking about exterior brick, interior walls, or accent surfaces, because the math is pretty different in each case.
Here's a comprehensive breakdown of what limewash actually costs compared to conventional paint, what drives the price difference, and how to figure out which one makes sense for your project.
What You're Actually Comparing
First, a quick clarification, because people use "limewash paint" to mean two different things.
There's traditional limewash — a lime putty or hydrated lime mixed with water, sometimes tinted with pigment. It's mineral-based, breathable, and has been used on masonry for centuries. Think Romabio Classico Limewash or a properly mixed DIY slurry.
Then there's limewash-effect paint — a latex or acrylic product engineered to mimic the cloudy, layered appearance of real limewash. Portola Paints' Roman Clay and similar products fall into this category. These go on drywall beautifully. Real limewash does not go on drywall the same way.
The cost comparison shifts depending on which you're using and where. We'll cover exterior brick, interior walls, and the DIY option separately, because they're genuinely different conversations.
Exterior Brick: Limewash vs. Paint
This is where the cost difference is most significant — and most worth understanding.
On the North Shore, where a lot of the housing stock is brick from the 1920s through the 1960s, we field this question constantly. Homeowners want to lighten up dark brick or update a dated look without covering the texture entirely.
Professional limewash on exterior brick runs roughly $3.50–$5.50 per square foot for a single-coat application, including prep (power washing and letting the brick fully dry — at least 48 hours). A full exterior on a two-story Colonial with around 1,800 square feet of brick surface typically lands between $6,500 and $10,000. Larger or more intricate homes with dormers, detailed masonry, or three-story sections push into the $12,000–$16,000 range.
Professional exterior paint on brick costs more than most people expect. You can't just roll latex paint over brick and call it done — not if you want it to last. The right approach involves a masonry primer, a breathable elastomeric paint (not standard latex), and usually two coats to achieve full coverage on porous brick. That process runs $5.00–$8.00 per square foot, putting a comparable two-story at $9,000–$14,500.
| Surface | Limewash (pro) | Paint (pro) |
|---|---|---|
| Single-story, ~900 sq ft brick | $3,200–$5,000 | $4,500–$7,200 |
| Two-story Colonial, ~1,800 sq ft | $6,500–$10,000 | $9,000–$14,500 |
| Large two-story w/ detail, ~2,400 sq ft | $8,500–$13,200 | $12,000–$19,200 |
The reason paint is more expensive isn't the product cost — it's the prep and application requirements. Elastomeric coatings need to be rolled into every mortar joint and pore, they're thicker and slower to apply, and getting proper coverage without trapping moisture (which will cause catastrophic peeling in a Chicago winter) takes real experience. We've done limewash projects in Hinsdale on brick colonials that would've cost twice as much to paint with elastomeric coatings.
Limewash is also more forgiving to apply because it's thin and penetrating — it soaks into the brick rather than sitting on top of it. That translates to faster application time, which translates to lower labor cost.
There's one other factor worth mentioning for anyone considering this for resale or long-term maintenance: paint on brick is essentially permanent. Once you paint brick, you've committed to repainting it every 8–12 years because peeling paint on brick looks terrible. Limewash weathers and fades gradually, and you can reapply or touch up a section without it looking patchy. Most contractors, including us, consider that a significant advantage.
We covered the full pros and cons of limewashing brick in a separate guide if you want the complete picture beyond just cost.
Interior Walls: Limewash-Effect vs. Standard Paint
Interior is a completely different calculation.
Standard interior paint on a 12x14 room — two coats of Benjamin Moore Regal Select or Sherwin-Williams Emerald, proper prep included — runs about $450–$700 professionally applied. That's your baseline.
Limewash-effect finishes on interior walls cost more, and the gap is meaningful. A Romabio or Portola Roman Clay application on that same room typically runs $900–$1,400, sometimes higher depending on the complexity of the layering technique and how many color variations the homeowner wants. The product itself costs more (Portola Roman Clay runs about $65–$85 per gallon versus $45–$65 for a premium interior latex), and the application is slower — you're working in sections, applying the base and then manipulating the glaze or topcoat while it's still wet to create the cloudy, variegated effect.
| Room Size | Standard Paint (pro) | Limewash-Effect Finish (pro) |
|---|---|---|
| Small bedroom (~150 sq ft walls) | $350–$550 | $650–$950 |
| Living room (~350 sq ft walls) | $600–$900 | $1,100–$1,800 |
| Full first floor (~1,200 sq ft walls) | $1,800–$2,800 | $3,200–$5,500 |
The reason people pay the premium: the look is genuinely different. Regular paint, even high-end paint, looks flat and uniform. A properly applied limewash-effect finish has depth — it catches light differently at different angles, and it hides imperfections in older plaster walls better than anything you can achieve with standard paint.
If you're unsure which direction fits your home's style, a color consultation can help you land on the right look before committing to either finish. The difference between a limewash effect that looks like a Tuscan villa and one that looks like a mistake is almost entirely in the prep, the technique, and the color selection.
DIY Cost Comparison
DIY limewash on exterior brick is genuinely doable if you have the patience and the physical stamina. Romabio Classico Limewash runs about $70–$90 per gallon and covers roughly 150–250 square feet per coat on porous brick (less if the brick is very thirsty). For 1,800 square feet of brick, you're looking at 8–12 gallons, or about $700–$1,100 in product plus a pump sprayer ($80–$150) and application brushes. Total material cost: roughly $850–$1,300.
DIY interior limewash-effect with a product like Portola Roman Clay is a similar story — the product cost for a living room is around $200–$350, but the technique is unforgiving. Unlike rolling standard paint, the application requires consistency across the entire wall surface and the ability to work wet edges without creating hard lines. We get calls from homeowners who tried it and ended up with a blotchy result that needs professional correction. Budget an extra $300–$500 for that possibility if you're attempting it yourself.
For context on what professional interior painting runs in Chicago across the board, our full cost guide breaks it down room by room.
What's Actually Driving the Price Difference
When a professional limewash job costs less than a professional paint job on exterior brick, it comes down to a few specific factors:
Product Application Rate
Limewash is thin and goes on quickly with a brush or sprayer. Elastomeric paint is thick, requires back-rolling, and needs two full coats to avoid holidays (missed spots) in the texture of old brick.
Moisture Management
Painting brick requires meticulous sealing of any moisture entry points or you'll have peeling in 2–3 years from freeze-thaw cycles. Limewash is breathable by design, so moisture can pass through without lifting the finish. That simplifies prep considerably — and it's especially relevant in Chicago, where freeze-thaw cycles are brutal from November through March.
Rework Risk
A botched paint job on brick is expensive to fix — you either repaint or strip it, neither of which is cheap. A limewash job that needs adjustment can usually be touched up or darkened without starting over.
Longevity and Total Cost of Ownership
Exterior paint on brick needs reapplication every 8–12 years. Limewash on a well-maintained exterior typically needs a light reapplication every 15–20 years, and touch-ups in between are straightforward. Over a 30-year horizon, the total cost of ownership often favors limewash even if the initial application cost were identical — which it usually isn't.
If you're still researching which product to use, we did a deep dive on how Romabio, Portola, and DIY mixes compare on Chicago brick specifically.
The Bottom Line
Limewash is generally less expensive than paint for exterior brick — sometimes significantly so — while being more expensive than standard paint for interior decorative applications. Neither is the right answer for every situation.
If you have brick exterior that you want to update, limewash is almost always worth considering before committing to elastomeric paint. If you want a textured, depth-forward finish on interior walls, a limewash-effect product delivers something standard paint simply can't replicate, and the cost premium is usually worth it if the aesthetic matches your home.
The biggest mistake we see is homeowners comparing material costs alone and then being surprised by the labor component. For exterior painting of brick especially, the prep and application technique matter far more than the sticker price of the product.
Z&Z Painting has done limewash and exterior brick projects across the Chicago area — we're happy to give you an honest assessment of which approach makes sense for your specific situation, including a realistic cost breakdown before you commit. Get a free estimate or call us at (630) 802-4302 and we'll take a look at what you're working with.