Last. Year the water company dug up my lawn for a valve issue. I opted to replace with sod, however, I really didn't put enough soil back and resulted in that section of the new sod which I replaced is a little lower than the adjoining lawn level.
If I was to gradually add a little soil at a time over these areas so that I can bring the level even with the existing lawn. The problem being is that when I mow I seem to have an uneven and shorter cut in this area.
All and any advise would be greatly appreciated.

I've had good luck slowly adding dirt over the summer on low areas.

Depending on how good your knees are, I have taken some dirt and screeded, with pressure, it in with a two by four.
This gives you as level a redo as possible.

After screeding I sprinkle seed heavily and the tamp it in under foot.
It has worked very well for me for filling in low spots.

Thanks, people, I'll gradually add some soil and tamp it in as suggested. Thanks again!!

I have done the same thing while I lived on Long Island BUT I used peat moss. During the grass growing season I work in some peat moss three or four times. Just a little at a time hoping it would add to the soil depth, raising the grass plants. Come next season, it looked normal.
Mine was a 6" wide trench from the street valve to my foundation. No matter how careful they were replacing the grass and dirt, it settled causing the difference.

Sounds GREAT, Big Bill. I'll give the peat moss a go a little at a time.
Thanks MUCH!!!

I'm working on leveling my lawn this year too - I'm using a blend of 75% sand and 25% compost / peat. Sand is supposed to be best for leveling but I plan to overseed this fall so I want more organic matter to be added as well. After applying level out with a garden or landscaping rake.

Fryus said:I'm working on leveling my lawn this year too - I'm using a blend of 75% sand and 25% compost / peat. Sand is supposed to be best for leveling but I plan to overseed this fall so I want more organic matter to be added as well. After applying level out with a garden or landscaping rake.

Best blend is 60/40 sand/compost.