House extensions in Dún Laoghaire

Compare up to 5 quotes
Prices from €1,800
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Top loft conversion specialists in Dun Laoghaire

Seller avatar for BBX Construction Limited
5.0 (17)
ServesDun Laoghaire
Lasting, high-quality builds tailored to your budget. Complete turnkey project delivery - from initial architectural drawings to final handover . Our Services: - House Extensions - Home Renovations & Retrofits - End-to-End Project Management
Seller avatar for Build 57
4.9 (12)
ServesDun Laoghaire
Build 57 has over 20 years experience in the construction industry across multilpe sectors from home improvements, retrofit energy upgrades and general building and carpentry. Specialising in renovations, we pride ourselfs in making the most of your existing space while adding additional if needed.

€35/hour

Seller avatar for Eland Building Construction Ltd
5.0 (6)
ServesDun Laoghaire
We are a small Building Construction Company, We build houses from the ground to fininsh, and we build Extensions, and we Renovate house and Repair the Roofs, we have a team of Blocklayers , Carpenters, Plumbers and electricians call us Eight five one six six two eight zero eight call us nationwide

€30/hour

Seller avatar for AtticCraft Dublin
4.8 (9)
ServesDun Laoghaire
AtticCraft Dublin – Attic Conversion Specialists Serving Dublin, Wicklow & Kildare We transform unused attic space into beautiful bedrooms, home offices, en-suites and playrooms, fully finished to the highest standard. One Team, Start to Finish We handle everything from the initial free survey through to: ✅ Structural engineering ✅ Planning advice ✅ Insulation & drylining ✅ Plastering ✅ Electrics ✅ Staircases ✅ Final finish One team, one point of contact, no subcontracting surprises. ⭐ What We Specialise In ✔️ Velux / rooflight conversions ✔️ Bedroom and en-suite additions ✔️ Home office conversions Flooring Services We also offer flooring as a separate service, whether or not you're having an attic conversion done. ⏱️ Fast & Hassle-Free ✅ Most projects completed in 2 to 4 weeks ✅ You stay in your home throughout with minimal disruption ✅ Every job comes with a Certificate of Compliance with Irish Building Regulations Free Survey & Quote ✅ Free no-obligation survey ✅ Written quote within 48 hours of visiting your property ✅ No pressure, just an honest assessment of what's possible and what it will cost Over 100 attic conversions completed across Dublin and surrounding counties. Get in touch today to book your free survey!

€25,000/one off

Seller avatar for JLC Construction
5.0 (5)
Dublin D
·0.4 km
As the managing director of a small domestic construction company I am hands on and will be available to the client anytime throughout their project

How much does a house extension builder cost in Dún Laoghaire?

€1,800 to €2,800

per sqm

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House extension builders in Dún Laoghaire

If your home no longer suits the way you live, a house extension can add the space you need without the upheaval of moving. In Dún Laoghaire, County Dublin, homeowners use Bark to find builders who deliver home extension projects from initial design right through to completion.

Whether you want a single storey extension to expand the kitchen or a two storey build to add bedrooms, experienced local teams can manage it all.

What builders provide

  • Single-storey extensions
  • Two-storey extensions
  • Kitchen and living extensions
  • Structural work
  • Full build management

Serving Dún Laoghaire and nearby

Many builders here also cover neighbouring areas of Dublin, including Lucan, Blanchardstown and Malahide, so you have a good range of professionals to compare. Sharing clear project details helps them give you accurate pricing from the start.

Take the first step

Post your extension house project on Bark and receive quotes from interested builders in Dún Laoghaire. Compare responses, check reviews and hire the team that best suits your plans and budget.

FAQs

Bark's data suggests house extensions cost between €1,800 to €2,800 per sqm, though your Dún Laoghaire project may vary with size, specification and structural work. Higher end finishes and two storey builds cost more, while simple single storey extensions cost less. Free quotes from local builders are the best way to plan your budget.

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