The general election result has left construction at the mercy of a fragile political alliance, with cuts to public sector spending the only certainty. We have to fight our corner

鈥楤e careful what you wish for 鈥 you might get it!鈥 Well, we鈥檝e got a Con-Lib government, which is what I predicted, and better, we hope, than the majority Conservative government some of us feared. Will it bring us best of breed with each party acting as a brake on the other鈥檚 nuttier notions, or will we get two parties get at each other鈥檚 throats 鈥 the 鈥淐on-Dem-nation鈥 of Daily Mail opprobrium? We鈥檒l soon know, as an emergency Budget will be announced in less than 50 days.

The Lib Dems have come out rather badly. After all, without them there would be no government. Instead of splitting the cake vertically along policy lines with the Tories keeping economic and foreign policy and the Lib Dems getting home affairs (for their fairness agenda) and a referendum on PR, the split has been horizontal. So, the Lib Dems have got all the lesser jobs, barring Energy and Scotland (where the Tories have no writ anyway) and a referendum on the alternative vote system 鈥 a far cry from legislation on proportional representation. The deputy prime minister鈥檚 post is traditionally a non-job; George Osborne will rule the economy despite Vince Cable at 鈥淏iz and Banking鈥; and Theresa May will be a very Conservative home secretary.

But what about construction? Well, notwithstanding the Tories鈥 appetite for efficiency savings (aka sacking civil servants), the easiest way to make their 拢6bn cuts in year one will be to axe capital spending. PFI contracts in health, transport and IT will be slashed immediately (Heathrow鈥檚 third runway has already been scrapped) as will 黑洞社区 Schools for the Future (BSF) spending. Schools get the raw deal out of this. There has been plenty of capital spending on hospitals and there are private sector options for infrastructure, but the cuts will add insult to the injury schools have already suffered.

super-green Chris Huhne is secretary of state for energy, but has to carry out the Tory nuclear policy. Surely that鈥檚 a Cameron joke at the LibDems鈥 expense?

BSF is a badly conceived procurement mechanism (ignoring RIBA鈥檚 leaner, quicker 鈥渟mart PFI鈥 alternative) that has led to hundreds of millions of pounds worth of skilled constructors鈥 and professionals鈥 money and energy being wasted to produce far too few new and renovated schools. Our industry鈥檚 best efforts are not in doubt, but the clunkiness of the procurement system has only been matched by its profligacy. Meanwhile, thousands of schools wait in the queue for the attention they desperately need. And, unintentionally, the 鈥渓ocalism鈥 of Tory planning policy could herald widespread nimbyism, bringing housebuilding to a halt.

New public investment policies will turn even more directly to the market than PFI or BSF; free schools, private hospitals, toll roads, and so on. Crucially, we must 鈥渕ind the gap鈥 when transferring from one system to another. When PFI replaced traditional public procurement, there was a two-year investment gap. It decimated the public sector supply chain and this will happen again.

The emergence of a green economy may give us some hope. The super-green Chris Huhne is secretary of state for energy, but has to carry out the Tory nuclear policy. Surely that鈥檚 a Cameron joke at the Lib Dems鈥 expense? Nevertheless Huhne will push offshore wind, tidal, local CHP and every other green energy proposal while agonising over our failing nuclear plants. This is a huge opportunity.

Our industry鈥檚 best efforts are not in doubt, but the clunkiness of the BSF procurement system has only been matched by its profligacy

The big question is whether the private sector will double dip. The banks may be the robber barons of the age but they do drive our economy. Cable has gone from sage to savage in his desperation to break up the banks and raise capital gains tax to 50%. Let鈥檚 hope that Cable is safely out of the way at business.

Still, it looks like taxes will rise (VAT to 20% or more seems likely) and ruthless public sector capital spending cuts will come in immediately. These tough measures are what the City wants and will boost confidence in the final recovery and the gilts market. But that does not mean it鈥檚 good for the construction industry in the short term.

My fear is that construction will double dip for two years, even if the broader economy does not. To minimise this, we must be quick to understand the new public economy and find fast-track ways to align with it. For example, we should quickly research and influence the new schools agenda. The same will be true in health, roads and energy.

Welcome to the new austere world of DIY public services, a second Victorian 鈥淏ig Society鈥. Once again, the construction industry is used as an economic regulator, so get behind the Construction Industry Council 鈥 we鈥檙e going to need all the political influence we can get.