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House Extension Cost Calculator

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How many storeys are you planning on building? 

Single storey
Single-Storey
Single storey
Double storey
Double-Storey
Double storey
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Do you need a fuse board upgrade?

Yes
Yes
Yes
No
No
No
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Do you need a new boiler installing?

Yes
Yes
Yes
No
No
No
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Which of these options best describes your home?

Detached
Detached-Home
Detached
Semi-detached
Semi-Detached-House
Semi-detached
Terrace
Terrace-House
Terrace
Bungalow
Bungalow
Bungalow
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Do you have architects drawings?

Yes
Yes
Yes
No
No
No
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What roof style would you like?

Apex roof
Apex-Roof-v1
Apex roof
Hip roof
Hip-Roof-v1
Hip roof
Flat roof
Flat-Roof
Flat roof
Roof with dormers
Roof-With-Dormer
Roof with dormers
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What external finish would you like?

Brick
Brick
Brick
Render
Render
Render
Stone
Stone
Stone
Other
Other
Other
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Your details

To allow us to personalise your quote and send it you via email



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Where will your extension be?

Rear extension
Rear-Extension
Rear extension
Side extension
Side-Extension
Side extension
Rear & side extension
Rear-&-Side-Extension
Rear & side extension
Front & side extension
Front-&-Side-Extension
Front & side extension
Other
Other
Other
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How big will the extension be?

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Will the extension include any new bathrooms (including ensuites)

No
No
No
1 bathroom
1
1 bathroom
2 bathrooms
2
2 bathrooms
3 bathrooms
3
3 bathrooms
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Do you have planning permission for the extension?

Yes
Yes
Yes
No
No
No
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Your house extension cost estimate

Thank you for your using our house extension cost calculator.
Based on the answers you have provided your final estimated price is :

Summary

Description Information Quantity Price
Discount :
Total :
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