Build a single storey extension in Ceredigion from £38,840

Single storey extension cost in Ceredigion - Sort by rates or availability

Max Sandford & San

From £47,320

(last active 14/09/26)

Location

Carmarthen, SA31

Need to find an Extension Builder near you for all your extension buildering work?

Max Sandford & San provides a local, trusted extension b...

G.I Davies & Son

From £46,520

(last active 14/09/26)

Location

Llanegwad, SA32

Need to find an Extension Builder near you for all your extension buildering work?

G.I Davies & Son provides a local, trusted extension bui...

D.A Fisher General Builders

From £47,480

(last active 14/09/26)

Location

Llanelli Rural, SA15

D.A Fisher General Builders is an established and experienced local extension builder in Ceredigion. Please contact us for a free, no obligation qu...

Shane Griffiths & Son Ltd

From £50,840

(last active 23/04/26)

Location

Llandysul, SA44

Shane Griffiths & Son Ltd is a trusted extension builder serving customers in Ceredigion and the surrounding area. Contact us to today to get a com...

ANTIS CONSTRUCTION

From £50,520

(last active 02/03/26)

Location

Llannon, SA14

Relax... you have found a reliable extension builder in Ceredigion. ANTIS CONSTRUCTION is a friendly and reliable company based in Ceredigion who c...

DERI BROWN T/A D Brown Building Services

From £40,920

(last active 27/10/25)

Location

Troedyraur, SA44

Hi my name is Deri

I'm a friendly and reliable and have over 20 yes experience in the building trade. And also come from a family backgr...

R i daniels

From £38,840

Location

Llanelli, SA14

  I have  26 years experience in the building industry and owned my company for 24 years,  i  am able to carry out most buildin...

ALX Construction Services Ltd

From £48,280

Location

Llandeilo, SA19

Relax... you have found a reliable extension builder in Ceredigion. ALX Construction Services Ltd is a friendly and reliable company based in Cered...

Lippiatt Construction

From £49,240

Location

Carmarthen, SA40

Chartered construction manager with thirty five years in the construction industry. High standards of workmanship, customer focused. Honest, reliab...

F & E Construction

From £49,720

Location

Meidrim, SA33

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Extension builder estimates (based on hourly rates) to build a single storey extension in Ceredigion

Estimates for single storey extension near Ceredigion

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Get extension builder rates instantly (excluding VAT or callout charges)
Location in UKHourly RateDaily Rate
Single Storey Extension near Carmarthen£26£205
Single Storey Extension near Carmarthenshire£26£205
Single Storey Extension near Llanelli£29£231
Single Storey Extension near Gorseinon£29£228
Single Storey Extension near Neath Port Talbot£31£224
Single Storey Extension near Neath£30£225

Estimates for common extension builder jobs in Ceredigion;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building

Underpin a building - £17,098

Two storey extension

Two storey extension - £87,398

Build a timber frame extension

Build a timber frame extension - £25,598

Build a swimming pool

Build a swimming pool - £80,598

Single storey extension

Single storey extension - £46,968

Side return extension

Side return extension - £36,982

Install an RSJ

Install an RSJ - £1,798

Outbuilding

Outbuilding - £9,598

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,598

Loft conversion

Loft conversion - £29,985

Build a kitchen extension

Build a kitchen extension - £41,598

Hip to gable loft conversion

Hip to gable loft conversion - £41,598

Granny annexe

Granny annexe - £86,598

Garden office

Garden office - £9,598

Convert a Garage

Convert a Garage - £15,598

Garage

Garage - £18,098

Build a flat roof extension

Build a flat roof extension - £21,598

Build a dormer loft conversion

Build a dormer loft conversion - £41,598

Concrete foundations

Concrete foundations - £5,848

Convert a bungalow loft

Convert a bungalow loft - £28,598

Convert a basement

Convert a basement - £32,982

More extensions & conversions cost guides...