quote for groundworks

new_home_owner_3

Im currently planning to have a double side extension, its approximately 7 x 4 metres, im using different trades for each job, now ive just had a quote for the footings to be dug a metre down all drainage provided,complete with concrete screed floor up to damp, ive had 2 quotes so far one 3700 and another 4200, does this sound okay?
this is without materials, the materials cost around 1500 pound so in total both quotes are under 6000 pound. what do you people think?

I still have a few more people who have been recommended to give me a quote.

ormus

you need to get some more quotes.
a mate has had done a 120 sq m house, all groundworks, up to footings level for 6600 quid.
(strip foundations).

capeverde

On the face of it it seems quite expensive, depends what you mean by 'all drainage provided' what does this entail? My company used to build conservatory bases for Anglian windows so have a good understanding of costs. Is their access for a mini digger? The smallest Kuboto only needs 600mm access. Has someone done a test dig to determine that a metre deep is ok for footings with your soil conditions? To give you some idea, if we could get a machine in, we would have had a foundation that size excavated in a day. You then have an hour to pour your readymix for the footing which may have been done the same day. After that you would have to build upto dpc with block on flat and then bricks. With a brickie and labourer again this should be a days work. Lastly you would pour the readymix for your slab. Again this will be done within a day so there you have it, 3 days work for two people excepting day 1 where you would probably need 3 people on barrows plus the digger driver to get the excavating done in a day. As I said depends what drainage needs to be done, but assuming its just connecting up to existing without too much work this again isnt really time consuming. So there you have it, total of 8 man days for 4k puts them on 500 quid each a day! Appreciate this is a simplistic view as companies have to make profit and pay taxes, but there is still plenty of margin for savings.

oz0707

Probably a bit heavy but you're not going to get trade rates. If the two quotes aren't too far apart either they're both quite busy or they're both in the zone. Get one or two more. Im upto DPC now http://selfbuildbungalow.blogspot.com all prepped ready for slab. 38 linear metres of wall 66m2 area. Stands me at just under 6k now, with about £600 of insulation and £800 of slab to go on top. with two days wages and the DPM will probably not be shy of 7 and a half.

capeverde

but theirs is under half your area and is plus materials. Also difference between an extension and a foundation for a complete property. In fairness there are a lot of imponderables without more information, but from a mse point of view it could be done a lot cheaper. If the poster simply wanted to forget about things and put the whole job in the hands of a project manager, I suggest he wouldnt be posting here in the first place.

oz0707

Fair comment. Shall we reconvene when the OP has had the other quotes off the other recommended firms? After all, we haven't seen the job and potential complications/imponderables.

new_home_owner_3

Thanks everyone im currently waiting for the plans to come back i have friends who do bricklaying and i have a very good friend who will be doing my roof, its just i dont know how much this will cost, for the groundworks, my friend whos a roofer/ carpenter as worked for a lot of building maintenance companies, so whatever quotes i get ill run past him and see what he thinks.

I think there is a bit of scope in the price, ill post back when i get plans back and i have the other two quotes.

I think ill have to wait for the plans, i have a budget of 30,000 to get the shell up with roof and windows. Oh by the way its for a double storey side extension.

Limara

new_home_owner wrote: »

Im currently planning to have a double side extension, its approximately 7 x 4 metres, im using different trades for each job, now ive just had a quote for the footings to be dug a metre down all drainage provided,complete with concrete screed floor up to damp, ive had 2 quotes so far one 3700 and another 4200, does this sound okay?
this is without materials, the materials cost around 1500 pound so in total both quotes are under 6000 pound. what do you people think?

I still have a few more people who have been recommended to give me a quote.

wish I could get a quote some where near that for my work I am trying to get a extension built for necessary disabled adaptions. a single storey approx 7mt x 6 mt/
my broken down cost for the groundworks was around 14 grand thats 5 thousand and something for the trench and fill I DONT THINK SO then I think it was around 5500 for the oversite and 3500 for the drainage ( costed the materials from B&Q for the drainage to be about £450)
We are finding a big pattern at the minute there seems to be a magic figure of 5000 added to everything, one roofer reckoned we have 5000 tiles more on the roof than I think we do then we had 3 quotes for the roof I nearly fell over when quoted 16100 then the next one was 21000 ( exactly the magic +5000 again) and both quoted for the same tile! the cheaper quote we got for the roof actually works out to be the most expensive as for some reason he has quoted for a pantile which is at least 3500 cheaper for the tile itself and around 1/3 of the price for battening and I cant imagine how much more labour would be needed to install 60 tiles a sq mt than 17 and his quote was 15000 and something!
Have you managed to pin any one down for a time frame for the work surely then a fair price would be a fair days wage for your workers? mine had quoted one week for the foundations and strip and second week for oversite and drainage, I guess the labour they hope to charge me is working out approx £1000 a day! and thats probably a over generous estimate of over 4000 for the concrete and drainage.
Mine is now either going back up for sale and I stand to loose a lot of money or we are going to have to project manage ourselves which I dont really want to do. we just drag on from one week and one month to another and seem to get no where.

new_home_owner_3

ive just got myself a trade card from build centre, a few of my friends have had extensions built recently, ive also looked at that seconds and co for kingspan insulation, id steer clear of b and q. We have a timeline of 6 months but we are quite lucky that are shell is completely seperate to our house, we will just need two small walls knocked through at the end.

I think now if you have a single or a double extension the footings need to be the same.

If its up and ready by christmas ill be happy.

Once i get my drawings ill come back with the prices.

new_home_owner_3

Limara wrote: »

wish I could get a quote some where near that for my work I am trying to get a extension built for necessary disabled adaptions. a single storey approx 7mt x 6 mt/
my broken down cost for the groundworks was around 14 grand thats 5 thousand and something for the trench and fill I DONT THINK SO then I think it was around 5500 for the oversite and 3500 for the drainage ( costed the materials from B&Q for the drainage to be about £450)
We are finding a big pattern at the minute there seems to be a magic figure of 5000 added to everything, one roofer reckoned we have 5000 tiles more on the roof than I think we do then we had 3 quotes for the roof I nearly fell over when quoted 16100 then the next one was 21000 ( exactly the magic +5000 again) and both quoted for the same tile! the cheaper quote we got for the roof actually works out to be the most expensive as for some reason he has quoted for a pantile which is at least 3500 cheaper for the tile itself and around 1/3 of the price for battening and I cant imagine how much more labour would be needed to install 60 tiles a sq mt than 17 and his quote was 15000 and something!
Have you managed to pin any one down for a time frame for the work surely then a fair price would be a fair days wage for your workers? mine had quoted one week for the foundations and strip and second week for oversite and drainage, I guess the labour they hope to charge me is working out approx £1000 a day! and thats probably a over generous estimate of over 4000 for the concrete and drainage.
Mine is now either going back up for sale and I stand to loose a lot of money or we are going to have to project manage ourselves which I dont really want to do. we just drag on from one week and one month to another and seem to get no where.

take a look here the price for the roof seems ridiculous....

http://www.whatprice.co.uk/prices/building/roof-install.html

Limara

new_home_owner wrote: »

take a look here the price for the roof seems ridiculous....

http://www.whatprice.co.uk/prices/building/roof-install.html

I know those quotes for the roof are ridiculous, ( so are my foundations) out of 12 builders only 3 have actually bothered to quote at all, this has been on going since last August Builders dont seem to want any work and there is supposed to be a recession and no one has any work!
Its looking like the only way foward for me is to buy the materials in then pay the individual trades,I have enough hassles now I dont know I need any more lol it would have been far easier just handing the entire job over, and its impossible for me to be there a lot of the time so I have a vision of a lot of highly paid tea breaks if there is no one on site cracking a whip!
I have a roofer prepared to work on a day rate he got a quote locally for materials and was quite chuffed with the 70 quid a sq mtr. If I do have the 15000 tiles up there now that would be £17500 just for materials!
The expensive quotes we had for the roof the tiles they quoted on are max 19.80 a sq mtr, battening well under 5 quid and the underlay I just cant understand where every one is getting their crazy prices from.

I will be following your quotes with interest, I know mine is a bit larger than yours but being single storey I would think it should end up being a similar cost.