Brealey said some people thought Mainzeal subcontractors had played a part in its downfall by being too lenient on payments.
"You've got to feel for the subbies but there's a view on their lack of action when it comes to ensuring they got timely payments," he said.
"If subbies had been more demanding, the hole might have only been half as deep. They take partial payments and they let it stretch for another month," he said adding that the subcontractors should have stood their ground.
Others in the sector have blamed the recession, poor corporate governance, a large number of leaky buildings and litigation.
Richard Yan, Mainzeal's sole director, said last week the company could no longer continue trading because of a "series of events that had adversely affected the company's financial position", combined with a general decline in commercial construction activity and a lack of shareholder support.
PwC partners Colin McCloy and David Bridgman were appointed receivers.
Brealey said court victories over builders for leaking structures had certainly played a part in the sector struggling, because of courts' joint and several liability findings, he said.
"It's unfair. It's very tough for the main contractor," he said.
"If there's an architect, engineer, clients and others involved in building and Mainzeal is the only company still standing, they have to pick up the whole can. It's unreasonable."
Since 2004, NZ Strong has won contracts worth more than $250 million and Brealey said his business was not suffering from lack of work.
"If this is a recession, bring it on."