that seems in the ballpark. the $600 seems a little steep assuming the mantel is just trimmed out lumber, but not outside the normal range. the $200 credit seems about right as well. our mantel material cost nearly $1000 but it was a big beam that they planed and aged for us. the cost of installing it was about a wash with the credit for the wimpy little leuders stone mantel that came standard ($300). the leuders hearth topper was $150 for the stone alone. I don't know the extra cost of stone and building out the hearth support of masonry. but again, i think your costs are reasonable based on my build.

You've lost me, is your new LP gas "fireplace" the vent-less issue, or is the reference to the old arrangement just for reference? But, sounds like a dirty "jet" in the pilot..something that may be well worth the service call, maybe your LP provider can give you a service visit without a charge. I haven't had NGas for so long and never LP, so I don't know what they'll provide as part you buying energy from them.

Just wanted to update this post again to say that I moved the couch back in today. The room just felt really bare and impersonal without it! And sharing 1 couch when we all like to stretch out and lay down wasn't working. So, I brought it back in but put the TV in front of the fireplace like Les suggested. I actually had it this way before, but changed the layout when I bought my Christmas tree. I just never put it back. I will look into options to cover the fireplace entirely because I like the layout of the room better this way. Will now work on getting some lighter curtains for the doors to bring in more color and also figure out how to hide my phone/TV cords better. The ottomans have seen better days and they will be replaced soon....they'll work for now because they're purely decorative. I'm going to buy some throw pillows and replace the wood that's in the basket by the TV cabinet. And I'm going to bring up my matching floor lamp that's currently in my family basement room. I'm back at figuring out wall art, but I'm going to try to add something to the walls too. I also plan on buying a couch to go in the library since I moved this green couch back in. I'm open to buying a couch that will suit this room better if something else will work better. If you all have any recs based on the pictures, feel free to share. Thanks again for all of the great feedback!!

I can't tell from the pictures how much of the black fireplace front is something that can be covered and how much is opening or vents. The windows are pretty close on either side - how much room do you have for the surround? It seems like one might overlap the windows - if the legs fit, there still is where something like where the Bordeaux flares out wider for the mantle. We did a very simple surround by facing it with remnants from our kitchen quartzite. We felt that the stone at the side had to cover at least 6" to not look too skimpy with the fireplace front. I think we ended up making it around 8".