I'm trying to get sensible buildings insurance since I have (mostly) completed things.

But the fact I have a flat room (well it has a slight pitch but 1/3 is 1 degrees and the rest is about 18 degrees.) seems to put a lot of the insurers off.  The roof is a single ply membrane, Evalon VSK, and it seems the insurance industry hasn't heard of single ply membranes before.

So the  few quotes I am getting are coming in at the £250-300 range just for buildings insurance, which is too high if you ask me.

 

I know some of you have got flat roofs @jack so who did you get your insurance through?

Have you been calling insurers direct or have you gone through a broker?  I would suggest that for anything non standard your easiest (and most cost effective ) route will be using an insurance broker.

Using an insurance broker 

What percentage of the building is covered by a flat roof?

Under 30% would not normally increase premiums, over that and it almost certainly will. 

There are also specialist insurers who are more comfortable with flat roofs. 

This is pretty standard fair for a decent broker so perhaps try a different one!

Keep me posted who you find - will be in the same position next month (all being well).

We used intelligent Insurance for our MBC build, really easy to deal with and our total buildings and contents insurance came in at £450 with all the usual exras

such as accidental damage, the mainstream insurers were quoting neater £1k

We're still under some sort of hybrid site/buildings insurance.  We're trying to get our completion certificate by Christmas.  Until that's issued, we can't get normal house insurance.

I didn't even ask them about needing a completition certificate at the time!!, luckily we got ours issued on Monday, just waiting for the warranty to be signed off tomorrow hopefully. We put are re-mortgage application in about 10 minutes after we had got the completion certficate!

We ended up with a policy from the Halifax. Was cheapest at the time and it was virtually unlimited.  However our house doesn't have any flat roofs and is all traditional construction.