DIY Concrete Fireplace {for less than $100}

Pin on PinterestShare on FacebookTweet about this on TwitterShare on Google+Share on StumbleUponShare on Reddit

DIY Concrete Fireplace tutorial using Ardex Feather Finish by Designer Trapped in a Lawyer's Body {}Hello there!  I am finally ready to share with you the much anticipated DIY concrete fireplace tutorial.  By way of background, in case you have not already read about it in the post about our family room renovation, let me explain the reason behind this transformation.  We felt like the stone fireplace was a very “traditional” look that felt out of place to us in our very contemporary home.  We really wanted a clean, simple, contemporary look for the fireplace.

I was obsessed with concrete fireplaces and I was willing to hire the job out.  But, professionals told us it either could not be done or it would cost us $2,000 to $3,000 and that they “thought” it would work.  Ummmm, no thanks.  Long story short, I researched a ton and found a phenomenal concrete product called Ardex Feather Finish that I thought would enable us to get exactly the look we wanted for a very small price tag.

This fireplace has received lots of attention since being pictured in my post on our family room renovation.  I was thrilled when my family room was featured on Apartment Therapy.  While most of the feedback was positive, there were some people who were APPALLED that we removed the stone from our fireplace.  I was not surprised.  In fact, my family room reveal post noted at the outset that the style would not be for everyone.

Let me just state for the record that I am totally okay with people disagreeing with our choice to remove the stone from our fireplace {though you should know that it had been badly sealed and was shiny and discolored}.  And I totally get that not everyone loves the look of concrete.  It’s okay, people!  I don’t expect everyone to love every single choice I make.  If everyone had the same taste, life would be boring.  But, for those of you that L.O.V.E. our DIY concrete fireplace as much as I do, please read on to learn about how we did it!

Before I get into the nitty gritty, let me add a HUGE disclaimer.  This worked FOR US.  We had our chimney inspected and spoke with a contractor and were confident that the stone on our fireplace was merely a facade that could be removed.  In other words, we knew our chimney would not fall down if we removed the stone.  If you are not absolutely sure about what you are dealing with, seek professional advice!  Our tutorial also depends on the presence of brick below your stone facade.  With that said, let’s get on with it…

Materials and Tools Needed for DIY Concrete Fireplace

  • Demolition hammer {we rented ours from Home Depot for the day}
  • Cement board
  • Mesh tape {to tape seams}
  • Electric drill
  • Masonry drillbit and screws
  • 14 inch Drywall tray {like this one, from Lowe’s Home Improvement}
  • 12 inch Drywall knife {like this one, from Lowe’s Home Improvement}
  • Ardex Feather Finish {you can find a distributor of Ardex in your area by clicking here. You can also buy it on Amazon here: Ardex- Feather Finish *affiliate link*  We used about 2 full bags}
  • A 5 gallon bucket for mixing the concrete
  • A drill attachment mixer {or you can mix by hand}


  1. If you have an ugly fireplace insert like we did, remove it first.  If you have a mantel, remove that also.DIY Concrete Fireplace by Designer Trapped in a Lawyer's Body {}
  2. Demolish the stone facade.  We used a demolition hammer to do this and I would HIGHLY recommend it.  Joe started with just a chisel and hammer and that got old fast.  Do yourself a favor and use a demolition hammer from the start.  You should be left with brick underneath your facade.  It looked better to us already after getting the stone off!  By the way, let me give a huge shout out to my awesome step-dad, Roger, for helping us out with the demolition!  You can see him helping out Joe below.DIY Concrete Fireplace by Designer Trapped in a Lawyer's Body {}DIY Concrete Fireplace by Designer Trapped in a Lawyer's Body {}
  3. Use an ELECTRIC drill with an appropriate masonry bit and masonry screws to attach your cement board to the brick.  It must be an electric drill.  A battery operated drill just does not have enough power to do this job.DIY Concrete Fireplace by Designer Trapped in a Lawyer's Body {}
  4. We added in a step here, that I will not be covering on the blog since it involved some DIY electrical work {which I don’t generally recommend}.  We added an electrical outlet to the fireplace so that we could hang our TV and not have wires running all over the place.  If you want to add an outlet to your fireplace, now is the time to do it.
  5. Tape the seams with mesh tape.
  6. Now you are ready for the fun part!  Mix up the concrete in your large bucket by adding water to the Ardex Feather Finish dry mix.  Add water and continue to stir until you get to a thin pancake batter consistency.  The right consistency is KEY!  Next, allow the mixture to sit for 5 minutes, then mix it up again.  This process helps the product remain workable for a longer period of time.
  7. Trowel the mixture into your drywall tray and start applying the mixture to the concrete board using your drywall knife.  I recommend going over the taped seams first.  Then work on covering the rest of the surfaces.  Use long, even strokes to apply a THIN layer of the concrete mixture.  We used our fingers to put it on the edges.  Sorry I don’t have any steps of this step–we completed the project pre-blog, so I did not bother taking photos of this step.  If you want to check out a tutorial about using this product on a different surface that has some photos of this step, I recommend this wonderful tutorial by Kara Paslay.  I will say it was easier to apply than I expected and we had ZERO experience with this sort of thing.  If you have ever worked with plaster or drywall mud, you will be on step ahead of us!
  8. This is how our DIY concrete fireplace looked after the first coat.  It was still drying in this photo.  You can see that the cement board seams were still visible.  Don’t worry, as you apply additional coats, everything will be covered!  DIY Concrete Fireplace Tutorial by Designer Trapped in a Lawyer's Body {}
  9. We did sand some between each coat, but honestly, I wish we hadn’t.  It made a huge mess and in the end, I don’t think it was necessary because LOVE the interesting look of hand troweled concrete, so I did not want to sand out all of the trowel marks.  If you have any high spots, you may want to sand those down, but otherwise, I would allow each coat to dry, then apply another coat until you are happy with the finish.  We applied either 4 or 5 coats.  I lost count.  After the final coat, we loved the look of it so much and it was so smooth to the touch without sanding, that again, we did not sand.  We also elected not to apply a sealer, since I don’t think there is any significant danger of spelling red wine on our fireplace.

That’s it!  For less than $100, we totally transformed our fireplace and created a DIY concrete fireplace.  And to think some of the pros we consulted couldn’t even figure this one out.  HA!  We love, love, love the clean, simple lines of our fireplace now.  And we are both lovers of all things concrete {countertops, floors, etc.} so we were thrilled to be able to use one of our favorite finishes on our fireplace.

DIY Concrete Fireplace tutorial.  Learn how to create your own DIY Fireplace with Ardex Feather Finish!  By Designer Trapped in a Lawyer's Body {}

DIY Concrete Fireplace tutorial.  Learn how to create your own DIY Fireplace with Ardex Feather Finish!  By Designer Trapped in a Lawyer's Body {}

One of my favorite views to compare is the view from our twin girls’ playroom into our family room BEFORE:

DIY Concrete Fireplace tutorial.  Learn how to create your own DIY Fireplace with Ardex Feather Finish!  By Designer Trapped in a Lawyer's Body {}

And AFTER.  We’ve come a long way, baby!

DIY Concrete Fireplace tutorial.  Learn how to create your own DIY Fireplace with Ardex Feather Finish!  By Designer Trapped in a Lawyer's Body {}What do you think of our DIY concrete fireplace?  Even if it’s not your personal style, can you believe that we managed this dramatic transformation for less than $100?!

Before I go,  let me mention that it’s time for Apartment Therapy’s Homie awards!

The Homies

A HUGE thank you to you wonderful people who have voted for my little blog!   I know that the eight votes I have at the time I am writing this post will in no way compete with those blogs at the top of the list, but I would love to get as many votes as I can :)  Voting ends February 22, 2014.   If you want to vote {even if it’s not for me}, you can vote here by clicking on the +1 button to the left of your favorite blog’s name.  If the button isn’t there, you just need to sign up for a free Apartment Therapy account.  DON’T WORRY, Apartment Therapy is great and won’t send you spam or a daily newsletter if you don’t want them to.

FINALLY {goodness, I am long-winded tonight}, if you enjoyed this post, I would love for you to follow me on social media or Bloglovin so that you never miss a post.  You may also want to check out my other projects, by clicking on the aptly named “My Project Gallery” page above to see the other projects we have tackled.  See you again soon!

DIY Concrete Fireplace for less than $100.  A full tutorial by Designer Trapped in a Lawyer's Body {}

DIY Concrete Fireplace tutorial.  Learn how to create your own DIY Fireplace with Ardex Feather Finish!  By Designer Trapped in a Lawyer's Body {}

I am honored that this project was featured on the following amazing blogs:



  1. johna nwamanna says

    Hi — I love this fireplace but I have a question. I really want to hang our tv over our fireplace and everyone we have spoken with says that it is detrimental to the tv to do so if you ever plan on using the fireplace. Do you use your fireplace? Was this a concern for you?

    • says

      Hi Johah! We had that concern, too. We wound up lighting a fire and taking temperature measurements to make sure the temps wouldn’t be too high for the TV. That said, we haven’t lit a single fire since we hung the TV, not because we are worried, just because we don’t have much occasion to light fires. Hope that helps!

  2. Courtney says

    what a beautiful job’! It looks great. Personally, I would of kept the original exposed brick. That was gorgeous! Especially distressed brick. I can’t believe anyone would cover up the brick though!!

    • says

      Thanks, Courtney! I love brick, too! We would have kept it in a traditional home, but since our home is so contemporary, we wanted a sleeker look and just love the concrete. Happy holidays!

  3. Colleen says

    Hi Tasha! I love your work! Is it possible to apply the Ardex directly over a marble fireplace surround? I’m trying to avoid the cement board step:-)
    Thank you in advance for your help!

    • says

      Hi Colleen! As long as the marble is in good condition {not cracked, chipped, etc}, you should absolutely be able to apply the Ardex directly over it! I would sand it first to remove the smooth finish, but otherwise, go for it! If you do, I would love to hear how it turns out!

  4. says

    love the look; question: what did you use on the inside of the fireplace; it looks like black paint; what can you use that isn’t flammable once you light the fireplace? I like the black interior. thanks!

    • says

      Hi Cindi! Yes, we did paint the firebox black with a high heat spray paint that is for fireplaces, grills, etc. You can find it at your home improvement store! I hope that helps!

  5. says

    Hi Tasha – you may have already answered this question, but it looks like you painted the firebox. If so, what did you use and are you still able to light a fire once painted?

    • says

      Hi Shari! We used a special high heat paint that is intended for fireplaces, grills, etc. So, yep, we can still light fires in it {and have}! Hope that helps!

  6. says

    I LOVE your fireplace & I’m so impressed with how you figured it out. I’ve been wanting to do a concrete makeover to our fireplace & wanted to ask…why is it necessary to have brick under the concrete board? What if you just had a wood frame or some such thing?

    • says

      Hi Erin! Thank you. I suppose it could be some other type of masonry, such as cinder block, but you need to make sure there is some other fireproof structural support for your chimney underneath the stone facade. I hope that makes sense. We thought about doing a wood frame on top of the stone surface, but that would not have met the building code here in North Carolina. I hope that helps!

  7. Tricia Zimmerman says

    Just finished demolishing my 1970s hideous lava rock fireplace. Left the stone hearth and rocks on bottom and stained them with concrete stain and have to say it looks much better. Would like to do what you did to the top part. Really like the simplicity of the look. Was it really as easy as you say? Think I would like to add some color to it though and will check out the options. Good job!

    • says

      Thank you, Tricia! It REALLY was easy to attach the cement board and work with the Ardex Feather Finish product! The hard work was getting all of that stone off! I hope that helps!


Leave a Reply

Your email address will not be published. Required fields are marked *