Convert your Holyhead garage from £15,256

A garage conversion can help you add extra space to your home without having to spend thousands on a new extension or loft conversion. While cheaper, a garage conversion is still a significant outlay that you should think carefully about before proceeding.


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Convert a Garage cost in Holyhead

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Property Maintenance Solutions

From £15,520

(last active 24/09/26)

Location

Tyn-y-gongl, LL74

Relax... you have found a reliable extension builder in Holyhead. Property Maintenance Solutions is a friendly and reliable company based in Holyhe...

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Hughes Construction

From £15,720

(last active 31/08/26)

Location

Bangor, LL57

Need an Extension Builder in Holyhead? Hughes Construction has been helping local clients (20 mile radius) with their extension buildering jobs for...

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Balmoral joinery/construction

From £15,744

(last active 31/08/26)

Location

Gaerwen, LL60

Fiting of door internal/external All joinery work from new joists to fitting off skirting boards Kitchen fitting Staircase or replac...

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W F CLAYTON & CO LTD

From £15,728

(last active 12/06/26)

Location

Bangor, LL57

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

W F CLAYTON & CO LTD provides a local, trusted extension...

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Glyndwr Roofing & Building Services

From £15,528

(last active 12/06/26)

Location

Holyhead, LL65

Glyndwr Roofing & Building Services are here to help customers who need an Extension Builder in Holyhead. We offer a competitive rate to complete a...

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Building & Flat Roofing Contractors

From £15,256

(last active 05/03/26)

Location

Caernarfon, LL54

Building & Flat Roofing Contractors is a trusted extension builder serving customers in Holyhead and the surrounding area. Contact us to today to g...

Garage conversion cost in Holyhead

Estimates for convert a garage near Holyhead

Garage conversions in Holyhead typically range from £15,256 (Building & Flat Roofing Contractors based in LL54) to £15,744 (Balmoral joinery/construction based in LL60), but the only way to get an accurate cost for your specific project is to get quotes. 

Post a job with HaMuch and we'll send it to extension builders in Holyhead who will be happy to help.


Estimates for common extension builder jobs in Holyhead;

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 - £17,083

Two storey extension

Two storey extension - £87,374

Build a timber frame extension

Build a timber frame extension - £25,583

Build a swimming pool

Build a swimming pool - £80,583

Single storey extension

Single storey extension - £46,653

Side return extension

Side return extension - £36,805

Install an RSJ

Install an RSJ - £1,783

Outbuilding

Outbuilding - £9,583

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,583

Loft conversion

Loft conversion - £29,838

Build a kitchen extension

Build a kitchen extension - £41,583

Hip to gable loft conversion

Hip to gable loft conversion - £41,583

Granny annexe

Granny annexe - £86,583

Garden office

Garden office - £9,583

Convert a Garage

Convert a Garage - £15,583

Garage

Garage - £18,083

Build a flat roof extension

Build a flat roof extension - £21,583

Build a dormer loft conversion

Build a dormer loft conversion - £41,583

Concrete foundations

Concrete foundations - £5,833

Convert a bungalow loft

Convert a bungalow loft - £28,583

Convert a basement

Convert a basement - £32,805

More extensions & conversions cost guides...