Bricks, Masonry, Asphalt and Concrete - Garage floor sunk 6" at sides

My concrete garage floor (2 car) has sunk about 6" all around the foundation. The garage is 30 years old and has been at the same level for at least 10 years. WHat would be the best approach to fixing the floor and can someone give me a ballpark idea of the cost?

I have been told to pull it up and replaceand also to just have mud jacking company come in and lift it .

Any thoughts?

I personally would mark it back to whereever the sinking starts and cut it out and repour. I am not a great one for dilly dalling around. Others will have different ideas, but this is what I would do. Good Luck

I agree with Jack. If you replace as Jack suggested, be sure to compact the base material thoroughly; otherwise you will have the same problem again.

thanks guys...

any idea on cost of having the floor replaced? im just looking for ballpark to determine if i can do now or have to wait... it is approx 20 x 30.....

thanks-

If you were going to replace the whole floor it would be around $2800.00. but if you were just going to do around a foot out from each edge, it would probably be around $1200. These are our estimates only and may vary depending on where you live. Good Luck

Thanks Jack-That sounds do able... I wil call and get an estimate

Thanks again,

As a contractor, I would charge more to saw and break out the perimeter than I would charge to demo the whole thing. A concrete saw is a lot more hassle and time than a jackhammer, and is a more precise tool. The concrete cost itself is negligible (sp?). The time and labor is your major cost. I would tear out the whole thing and replace if it were mine. That way, you get a monolithic slab with more integrity. You would save a lot of $ if you did the tear out and disposal (rented pneumatic , not electric, jackhammer and dumpster) of the existing slab. Good luck.

Pecos

jsouthco -

A neighbor in our area had a badly cracked and settled garage floor. - Floating slab on typical builder poorly compacted junk fill.

He had it completely torn out (2 car). He figured that is was not a concrete problem, but a soil problem.

The contractor sent 3 men (2 wheel barrows and skid-steer to load the dump truck) and they tore out the old slab, removed the builders old drywall and rotton wood scraps, formed the floor and a new apron and compacted the soil in a short day. Concrete arrived at 6:30 the next morning and the floor was finished by 9:00 AM.

I never asked the price, but it did not take that much time or labor. I would imagine it would have taken longer to do a partial job with less strength and the same bad soil under the concrete.

Dick