The 10 best attic conversion companies in Dublin

The Attic Company converts underused attics into bedrooms, home offices, en suites and other living areas, managing the project from planning through to flooring. Its conversion types include standard, rear dormer, side dormer and hip-to-gable designs, with options tailored to the home and intended use.

Rear dormer conversions create more headroom and usable floor space, while standard packages include two steel beams and three roof windows. The company coordinates the construction process and offers a free consultation before work begins. It manages everything from planning to flooring.

Attic conversions are the main service at GM Carpentry And Construction, turning unused roof space into bedrooms, offices and playrooms across Dublin. The company also specialises in dormer lofts and attic conversions with en-suites, covering insulation, lighting and ventilation. Home extensions, renovations, carpentry and property maintenance are also available.

GM Carpentry And Construction manages conversions from assessment through completion, including material guidance, trade coordination and project management. The company offers free site visits and quotes and serves Dublin and surrounding counties. An in-person assessment helps establish whether the attic is suitable and what structural or building-regulation requirements apply.

CCS attic conversion LTD transforms under-used attic space into living areas, managing the project from design through plumbing, window installation and construction. Its work includes dormer attic conversions, building walls, installing steel beams and fitting attic windows from Velux or Fakro. Home renovation and bathroom renovation are also available.

The company provides a fixed price after an initial assessment and discusses any later change for approval in advance. Most attic conversions take two to three weeks, depending on complexity, and clients can usually remain at home during the work. A certificate of compliance from an engineer is supplied on completion, and the work carries a five-year guarantee with lifetime customer support.

House extensions, renovations and attic conversions form the core of Delta Construct’s residential building work in Dublin. Projects can include demolition, foundations and structural steel, with insulation, roofing and internal finishes also covered.

The company also works with Insulated Concrete Forms for new construction and renovation projects. This method combines reinforced concrete with continuous insulation and is presented for extensions, retrofit work and energy-conscious home improvements. Projects can also include backyard studios and broader home makeovers. Insulated Concrete Forms combine concrete with continuous insulation.

The Atticman converts lofts and attics in Dublin, Meath and Kildare into bedrooms, offices, storage and other living spaces. Its work covers terraced, semi-detached and detached homes, with options such as roof-window conversions and dormer conversions. En-suite bathrooms, plumbing, electrics and solar-panel relocation can also be included where required.

The family-run company handles the conversion in-house and offers a free feasibility study before work begins. An in-house BER assessor can advise on energy efficiency, while the team’s design and construction approach is intended to make better use of difficult or underused roof space. Most conversions are stated to take 10 business days.

This attic company turns convertible roof space into additional living areas, with dormer conversions suited to terraced and semi-detached homes. The work can create bedrooms, playrooms or en-suites, while the team discusses the most suitable dormer style for the property.

The service includes a free survey, design and quotation, followed by conversion work that can include structural steel, flooring and insulation. A top-hung VELUX window can provide a fire escape. A standard three-bedroom semi-detached conversion is stated to take about ten working days.

Prospect Construction - Attic Conversions creates additional living space through standard, dormer and hip-to-gable attic conversions. Dormer work extends the sloping roof to increase headroom and usable floor space, while hip-to-gable conversions replace a hipped roof side with a vertical wall.

The company can create bedrooms, ensuites and family rooms, with an assessment covering head height, access and layout. It provides clear quotes and timelines, and says most households can remain at home during the build. Standard attic conversions start at €22,000 plus VAT, with the final cost affected by structural and finish requirements.