Approx cost of new dormer roof?

DrStriver · 06-09-2011 01:54PM #1

Hi,
I am considering taking the roof off a bungalow and replacing it with a dormer roof (existing roof pitch is not high enough to convert). What would the approx cost be for builders finish? The bungalow is a plain rectangle, 8m by 18m. Would need stairs up as well and maybe 3 dormer windows to front and a couple of veluxs to back.

Cheers.

DrS

1chippy · 06-09-2011 10:01PM

you definately can not get an estimate let alone a quote on that info. stairs alone will range from 800 up let alone fitting if the roof needs to lifted, its a reroof, slates or tiles, are the joists heavy enough to take the floor, do you need services ran? just a sample of the list of questions that need to be asked.

DrStriver · 07-09-2011 01:21PM

Thanks for the feedback.

Ok, lets assume the worst, needs to be fully plumbed and wired for 3 bedrooms, 1 bathroom and an ensuite. Joists need to be replaced/reinforced, the more expensive option when it comes to slates or tiles.

Assume the walls of the bungalow are of sufficient load bearing to take the new roof.

It is a complete new re-roof. Bungalow will be undergoing renovation at the same time and not occupied.

It is only rough estimate that I am looking for.

DrS.

BryanF · 07-09-2011 01:46PM

step one get an arch out for a consultation, he/she will probably tell you, you need planning and will quiet quickly be able to tell you the extent of works envolved, then get the Arch to write a list and give it to a minimum of 3 builders to price.

1chippy · 07-09-2011 08:26PM

sounds about right bryanf. once you start raising the ridge level of any house planning permission will be needed. on a pure guesstimate the cheapest possable will still be well over 30k

ckd · 30-11-2015 10:44PM

I know this post is old but just wondering how you got on with the conversion and the final cost. We want to down this road with our bungalow also!

Approx cost of new dormer roof?

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