What's the problem with my lawn?

[Titsywoo]

We dug out the garden at our new house last year to install a soakaway for the extension. Since the garden was mainly paved we redid it entirely and had turf put down. From when it was put down in April until the end of the year it was lovely and lush and green. Then we had another wet winter and since we were still having building work done and have not built a path yet we had to walk back and forth to our shed a lot which I think compacted the soil (it is heavy clay in this area). After that we tried not to walk on it again until it dried out in spring. From Sept last year we used a reputable firm to treat the lawn which they have done each quarter plus removed thatch, aerated and scarified. So it has been well fed, we have watered it in wet weather and mowed it to about 2 inches since it started growing. But it looks crap now. The edges are all nice and green but most of the centre is patchy and brown and isn't growing at all (just stays the same length whereas the outside grows fast). I'm going to get advice from the lawn company but in the meantime can anyone give me any tips? It cost so much to do and I am disappointed in how rubbish it looks! Will add pics of the edge and the centre in a minute. Thanks :)

[Titsywoo]

Edges

[Titsywoo]

Centre

[shovetheholly]

I am not a lawn person, there are people who know way more than I do about this. But lawns can take a while to bounce back when they have been damaged by wet and by walking. It looks to me like those bare patches are starting to come back to life - there is a subtle flush of light green over them. Perhaps feeding and mowing gently twice and week will help that along - and maybe top dressing any parts that seem particularly bald? (Good videos on how to do this on Youtube).

[Titsywoo]

Our lawn man popped over and said it is red thread so he has treated it and said it may need to be reseeded in parts. Thanks for replying :)

[shovetheholly]

I've never even heard of red thread! I don't know anything about lawns.

Glad you got an answer and some help!

[Ifailed]

I think the problem came with the turf, you could try to nurture it, treat it with all sorts of chemicals etc, or bite the bullet and get it dug over, lay some good top soil and re-seed it all in the autumn?