Hi,
I had an UFTB shed delivered and erected in November last year. I waited three months for delivery (probably due to location). When they first visited, they turned up with the double doors in the apex, which wasn't what I had ordered. I had even sent them a picture of the exact shed I wanted, so this wasn't a good start. They asked if I could 'live with it' to which I dug my heels in and said no. They then offered £100 off (the delivery charge) for me to live with it, to which I again said no.
A few weeks later they returned with the correct shed.
However, (based on my own shed from them) they lack a bit of finesse and general common sense. There have been a few snags, which I opted to put right myself.
1. Windows are not sealed. Glass is held in place by two pieces of timber internally. I fixed this with a bead of clear silicon around the outside of each window.
2. I have read this elsewhere, and it is also the case on mine, where several nails have missed the frame and are visible internally.
3. The felt was stapled to the roof during erection rather than nailed, and is significantly wrinkled across both roof panels. Its watertight, but aesthetically its none too pretty and I will be replacing mine next year.
4. The corners aren't protected sufficiently to prevent water ingress, so more silicon sealant was required here.
5. Make sure the floor is kept clear of the ground. The timbers that make up the floor soak up water like a sponge. I have raised mine on roofing lathes wrapped in damp proof membrane which got rid of the wet floor problem.
6. Over the summer months all of the T&G cladding appears to have separated slightly on mine with some areas separating enough that it is possible to see straight through.
7. The wood used to brace the roof and to dress the edges of the roof seem to be less than perfect offcuts, which again let the shed down aesthetically.
8. On mine at least, the panels weren't pre-drilled to be fixed to each other. As such the installers simply self tapped all fixings through the panels which looks a bit untidy with wood being split around each screw head where fixings were over tightened.
Personally I wouldn't buy from them again. They potentially have a good product to offer, but are let down by shoddy build quality and careless installation. The additional time and effort required to correct the aforementioned issues, cancels out the savings offered against competitors.
Having said that, if you were to ruthlessly scrutinise the shed upon delivery for those problems outlined above, you could possibly get the company themselves to put everything right.