How to Whitewash a Brick Fireplace for a Soft, Brick-Through Look

A dark red brick fireplace can make an entire living room feel heavy, but solid paint erases the texture that made brick appealing in the first place. Whitewash sits between those extremes. Learning how to whitewash a brick fireplace gives you a soft, chalky surround where the color and character of each brick still show through, and you control exactly how much.

The most common approach uses ordinary white latex paint thinned with water, brushed onto clean brick and then wiped back with a rag before it dries. A 1-to-1 mix of paint and water gives medium coverage; more water makes a sheerer wash, less water makes it more opaque. Work in small sections, test first, and keep every drop of whitewash on the outer surround, never inside the firebox.

Most surrounds take an afternoon to wash and a day to dry. The project costs very little, and because thinned latex is gentle on the eye, mistakes on the first section are easy to fix while the paint is still wet.

How to Whitewash a Brick Fireplace: Plan Before You Mix

Whitewash on brick is semi-permanent. Thinned latex soaks into the pores and cannot simply be scrubbed off later, so decide on the look before starting. Collect a few photos of washed brick you like and note whether the mortar lines appear bright white or muted, and whether the brick color reads as pink, tan or nearly hidden.

Also look at the brick itself. Very smooth, glazed or sealed brick does not absorb wash well; the paint beads or wipes off completely. Sprinkle a few drops of water on the face. If the water darkens the brick and soaks in within a minute, the surface is porous enough. If it beads, a different technique (light solid paint with a dry brush, or a professional limewash product made for sealed masonry) may suit you better.

The method here is for interior surrounds with latex paint. Limewash, a traditional lime-based product, behaves differently and is covered separately, as is whitewashing exterior brick on a house.

Fire Safety Before You Start

Only work on a cold fireplace. If you have had a fire recently, wait at least 24 hours and confirm the brick, grate and ashes are completely cool to the touch. Remove ashes into a metal container with a lid and store it outdoors away from the house.

Keep whitewash on the outer face, hearth edge and mantel area only. Standard latex paint is not rated for the heat inside a firebox, so it can blister, discolor and release fumes when fires are burning. If you want the inside darkened or refreshed, use a high-heat paint specifically rated for fireboxes, and only after a chimney sweep has confirmed the firebox is sound.

While the fireplace is out of use, it is a good time to schedule an annual chimney inspection, test smoke and carbon monoxide alarms, and check that the damper opens and closes freely. Let paint cure fully, usually several days, before lighting a fire, and start with a small fire the first time so you can watch for any discoloration near the opening.

Tools and Materials

• Flat or matte white interior latex paint (one quart covers most surrounds)
• Water and a bucket with measurement marks
• A masonry paint brush or a 3 to 4 inch stiff synthetic brush
• Lint-free cotton rags or old T-shirts (several, since they load up fast)
• Stiff nylon scrub brush, mild dish soap, and a sponge
• Painter’s tape, drop cloths, and plastic sheeting for the hearth and firebox opening
• Spray bottle of plain water
• Gloves and safety glasses

A dedicated masonry paint brush with stiff, tightly packed bristles is worth the few extra dollars. It pushes thinned paint into the mortar joints and rough brick faces far better than a soft wall brush.

Choosing a Whitewash Ratio

Your mix ratio sets how much brick shows through. These starting points work for most porous interior brick:

Start thinner than you think. You can always add a second coat to brighten the surround, but it is very hard to pull back a wash that went on too heavy. Stir often, because pigment settles quickly in watered-down paint.

Step-by-Step Whitewashing

1. Clean the brick. Vacuum dust and cobwebs, then scrub the surround with warm water and a little dish soap using a stiff nylon brush. For soot stains on the face, a dedicated masonry soot cleaner works well; follow its label and ventilate. Rinse with a damp sponge and let the brick dry at least 24 hours.
2. Protect surrounding surfaces. Tape off the mantel, walls, flooring edges and any metal trim. Cover the hearth with a drop cloth and tape plastic sheeting across the firebox opening so no wash drips inside.
3. Do a test patch. Pick a low, inconspicuous spot or a few bricks near the bottom corner. Apply your mix, wait 1 to 2 minutes, and wipe. Let it dry, because whitewash dries noticeably lighter and more opaque than it looks wet. Adjust the ratio if needed.
4. Dampen the brick lightly. Mist a 2 by 2 foot section with the spray bottle. Damp brick slows absorption and gives you more working time for even coverage.
5. Brush on the wash. Load the brush, tap off excess, and work the mix into the mortar joints and across the brick faces. Brush in multiple directions to reach the texture.
6. Wipe back. After about 30 seconds to 2 minutes, wipe the section with a clean rag. Light dabbing leaves more white; firm wiping reveals more brick. Keep pressure consistent from section to section.
7. Move across the surround. Work from the top down and blend each new section into the wet edge of the last. Change rags often, since a loaded rag smears paint rather than lifting it.
8. Step back and evaluate. After the first coat dries for a few hours, look at the whole fireplace in daylight and lamp light. Add a second thin coat to any area that looks patchy or to brighten the whole surround.

Variations on the Technique

For a more aged look, skip the wipe on some bricks and wipe heavily on others. For bright mortar lines with darker brick faces, brush the wash only into the joints and immediately wipe the brick faces clean. Some people prefer a dry-brush method instead: dip a nearly dry brush into undiluted paint and drag it lightly across the brick faces, leaving the mortar natural. Each method works with the same prep and fire-safety rules.

Troubleshooting

• Too white: while the wash is wet, mist with water and scrub with a stiff brush and rag. Once dry, you can tone it down slightly by scrubbing with water and a nylon brush, but results vary.
• Streaks or drips: wipe drips immediately. Dried runs can be softened by brushing a little more wash over them and wiping evenly.
• Blotchy coverage: brick absorbs at different rates. Pre-misting helps, and a second thin coat evens most blotches.
• Paint not sticking: the brick is sealed or dirty. Clean again, or consider a masonry primer and a dry-brushed solid paint finish.
• Yellow or brown bleed-through: soot or old stains. Clean with a soot remover and spot-prime with a stain-blocking primer before washing over the area.

Cost and Time

A DIY whitewash usually costs well under $100: a quart of flat latex, a masonry brush, rags and tape. Plan on 3 to 5 hours for a typical surround, plus drying time. Professional painters often charge a few hundred dollars for a standard fireplace face, more for floor-to-ceiling brick or detailed work around built-ins. Washing is much less expensive than refacing a fireplace with stone or tile, and it is far easier to undo visually by washing over again in another tone.

Caring for a Whitewashed Fireplace

Dust the brick with a soft brush attachment on your vacuum every few weeks. Avoid soaking the brick with water or harsh cleaners, which can lift thinned paint. Soot creeping out of the opening often signals a draft problem, so mention it during the next chimney inspection. For touch-ups, keep a jar of your exact mix labeled with the ratio.

When to Call a Pro

Call a chimney sweep before any project if you notice cracked firebrick, loose bricks, gaps in the mortar inside the firebox, a smoky room when fires are burning, or a damper that will not seal. A painter or mason can handle tall surrounds that need scaffolding, sealed or glazed brick that will not accept wash, or a fireplace with heavy staining you cannot clean. They can also apply professional limewash or mineral stain products that offer a similar look with different durability.

Once you understand how to whitewash a brick fireplace, the process is forgiving and quick. Test first, work in small sections, keep it out of the firebox, and you will have a lighter, brighter room by evening.