Cost to build a flat roof extension in Holyhead

Extend your Holyhead with an extension

A flat roof extension is a great way to add extra space to your home without splashing out on the costs of a pitched roof extension. Often exempt from planning permission rules, you can build a flat roof extension up to 3 metres in height as long as it's not visible from a road. But how much do they cost in Holyhead? To see prices and availability for your job click green button.

HaMuch is Excellent

How HaMuch saves you money

Post your job for free

Post your job for free

We send your job to ALL Holyhead extension builders

Compare quotes

Compare quotes

Available extension builders in Holyhead reply

Save Money

Save Money

Select your affordable Holyhead extension builder

Post your job

Sort by

Flat roof extension cost in Holyhead

Estimates for build a flat roof extension near Holyhead

A flat roof extension ranges from the cheapest of £21,528 (Glyndwr Roofing & Building Services based in LL65) to the dearest of £21,528 (Glyndwr Roofing & Building Services based in LL65), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.

Find out how much your flat roof extension will cost in Holyhead by posting a job with HaMuch. We'll send it to extension builders in Holyhead.

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 - £17,028

Two storey extension

Two storey extension - £87,292

Build a timber frame extension

Build a timber frame extension - £25,528

Build a swimming pool

Build a swimming pool - £80,528

Single storey extension

Single storey extension - £45,560

Side return extension

Side return extension - £36,190

Install an RSJ

Install an RSJ - £1,728

Outbuilding

Outbuilding - £9,528

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,528

Loft conversion

Loft conversion - £29,325

Build a kitchen extension

Build a kitchen extension - £41,528

Hip to gable loft conversion

Hip to gable loft conversion - £41,528

Granny annexe

Granny annexe - £86,528

Garden office

Garden office - £9,528

Convert a Garage

Convert a Garage - £15,528

Garage

Garage - £18,028

Build a flat roof extension

Build a flat roof extension - £21,528

Build a dormer loft conversion

Build a dormer loft conversion - £41,528

Concrete foundations

Concrete foundations - £5,778

Convert a bungalow loft

Convert a bungalow loft - £28,528

Convert a basement

Convert a basement - £32,190

More extensions & conversions cost guides...