How To Paint Inside Fireplace – & What Paint To Use

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I have never been able to fully clean the inside of my fireplace. Recently I was thinking, “Can you paint the inside of a fireplace?” Well, the answer is yes! Today I wanted to share how to paint the inside of a fireplace.

I actually did this a few weeks ago as part of our total fireplace makeover and I LOVE how it turned out. I have been wanting to do this for so long because no matter how much I scrubbed it never looked clean inside! It was so easy and fast I’m kicking myself for not doing it sooner. Oh well, at least it’s done now!

Here I want to show you how to paint the inside of the fireplace the easy way as well as what firebox paint to use.

before picture of the inside of dirty fireplace before painting it with black high heat paint
BEFORE: Here’s what it looked like before we painted it! Ugh it drove me crazy….

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I did some research before I started this project and found out I needed to use high heat paint (aka “heat resistant paint”).

I ended up getting Rustoleum high heat paint. This high-temperature paint goes a long way so we just got a small size.

Rust-oleum high heat paint black

Step 2: PREP

The first thing you want to do is get rid of any dirt, ash, and dust that is inside your fireplace.

I started by vacuuming it out as best I could. (Make sure you put down a drop cloth of some sort to protect your floors).

clean inside of fireplace before painting


Now that you’ve vacuumed out all the big stuff it’s time to deep clean it as much as you can. This can be a dirty process so grab your gloves and enjoy!

I sprayed down the inside and used an old scrub brush to get every little part I could. It wasn’t perfect but it gave me a nice surface to start with.

Step 4: TAPE OFF

At this point, you might want to tape off any areas that you don’t want to get paint on. Since we are replacing our tiles, we skipped this step.


Now it’s time to paint the inside of your fireplace. Make sure to follow the directions on the back of the high-heat fireplace paint can.

Mix paint thoroughly before using it. Use a brush or roller and simply paint it on.

Start at the top of the back and work your way down towards the bottom. Once that is done you can finish the floor part of your firebox.

We only ended up doing 1 coat since it covered really well. They recommend not using a second coat anyway. It probably only took about half an hour to do. Seriously I wish I had done this sooner! 

after picture of inside of fireplace brick using black high heat paint


There you have it! This was one of the easiest DIY projects I have tackled to date. I really should have done this sooner it was so quick and easy. This is a great project to do if you have an unused fireplace or just want to update the look.

Now that we’re all done with painting the inside, it’s time to get rid of that tile & add a mantle. Check out our total fireplace makeover to see how it ends up!

Fireplace Decorated For Fall

Stunning Shiplap Fireplace Ideas

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