Extension quote. Sound fair?

[VioletG]

Hi,

We live just outside of London and been quoted 34k for a 20m2 extension. It does not include the windows.

Basically it's at the back of the house, knocking down the external back wall to make a large open space for a kitchen/diner.

Also should there be any specific questions I ask in regards to whats included before I agree?


Thanks

 

[JP_]

Sounds a bit expensive, especially if not complete, ie. no windows. Is there a reason it is quoted without windows? Does it include the kitchen?
Have you had plans, even if very simple, drawn up? Any drainage issues (if a drain is under the area extended over, that will need to be moved etc.), what type of sub-floor (concrete slab or maybe extending suspended floor, if you have that now). Does the price include all plastering, skirting boards and doors etc. - how finished will it be? All electrics and plumbing, and radiators included?

2 years ago in Essex I paid 63k for about 50m2, and that included 2 windows, 2 french doors and a back door. But no major structural work was required.

Make sure they are fully insured, a proper business etc. as knocking out a back wall needs to be done correctly!

 

[VioletG]

Sounds a bit expensive, especially if not complete, ie. no windows. Is there a reason it is quoted without windows? Does it include the kitchen?
Have you had plans, even if very simple, drawn up? Any drainage issues (if a drain is under the area extended over, that will need to be moved etc.), what type of sub-floor (concrete slab or maybe extending suspended floor, if you have that now). Does the price include all plastering, skirting boards and doors etc. - how finished will it be? All electrics and plumbing, and radiators included?

2 years ago in Essex I paid 63k for about 50m2, and that included 2 windows, 2 french doors and a back door. But no major structural work was required.

Make sure they are fully insured, a proper business etc. as knocking out a back wall needs to be done correctly!

Thanks. They are reputable, I was recommended by neighbours. Those are good questions, thank you. In regards to insurance is there a way to check a company online?

 

[JP_]

Just ask them. Just say you spoke to your home insurance about the extension, and they wanted you to check that the builders have insurance in place.

 

[Doug99]

Ask to see a copy of their liability insurance, then contact their insuror to check if still valid. I have seen reported incidents where details of insurance have been provided, but when something went wrong the insuror was not interested as the builder had not paid his premiums.

 

[garyo]

Does the quote include internal finish to floors, walls, lighting, and matching this in with the existing room that's being knocked through?