I myself have a trade business (air conditioning) and I made the decision to discontinue our relationship with all of our (kit/project) home builders and continue only with the specialist builders,architects,and engineer projects............
The reasons for this were many but the most notable ones were:-
1. Deposits,progress payments and completion and commissioning payments were getting harder and harder to extract from these guys and they were starting to find any excuse or reasoning to withhold or deduct monies on defects, which there were none. Blaming us for faults by other trades (tradesmen they imported from other countries etc etc and either not licenced, qualified nor experienced).
2. Workmanship, pride and quality of building was decreasing with every home that we continued to work on,things like water leaks and flooding, cheap and nasty fixtures and fittings that in no way reflected what was on offer in there display homes etc etc and I did not wish this to be a reflection on our organisation.
3. The amount of time taken to complete these project homes, every customer expressed to us the dissatisfaction of these builders to the point that the necessary people even told these customers not to contact them regarding there issues as they flatly refuse to speak to them, to the point of threats of physical harm to the customer.
And yet this same company got an absolutely rivetting review by a high profile newspaper but I am yet to meet any one who has a good word to say about them.
Anyway, I would not want to generalise and put them all in the same basket but there is absolutely no way in hell would I ever build a project / kit home.
Big T