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Basement conversion in Ireland
Builders and trades who cover your area — compare quotes before you commit.
Basement conversion is the process of transforming an underutilised basement area into a functional living space. This service typically involves a range of activities such as insulation, flooring, lighting installation, and plumbing to ensure the area is comfortable and meets local building regulations.
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WHAT IT COSTS
Basement conversion in Ireland: €40,000–€150,000 per project
Basement conversion/excavation is the most expensive way to add space — priced per project by whether you dig/lower or convert existing. Enter your town above for real prices from the builders and trades near you.
- Convert existing vs dig/lower
- Waterproofing (tanking) and drainage
- Structural/underpinning work
- Access and spoil removal
Guide prices compiled by the Locufy team from published Irish and UK provider price lists and 2026/27 cost guides. Updated 2026. Full basement conversion price guide →
GUIDE PRICE · PER PROJECT
Not a quote. Prices vary by job, area and provider.
WHAT IT COVERS
What builders do
Full Basement Conversion
Transforming the entire basement into a livable area, including structural adjustments, insulation, and finishes.
Partial Basement Conversion
Converting only a section of the basement for specific uses, such as a home gym or study.
Basement Bathroom Installation
Adding a bathroom to the basement, which involves plumbing, fixtures, and waterproofing.
Basement Insulation
Improving energy efficiency by installing proper insulation materials to regulate temperature.
Basement Flooring Installation
Laying down suitable flooring options, such as laminate, carpet, or tiles, designed for basement conditions.
Egress Window Installation
Installing windows that meet building codes for safety and natural light in basement conversions.
Three ways to get it done
LISTED ON LOCUFY
Basement Conversion providers on Locufy, across Ireland
The most-reviewed providers listed for basement conversion. Enter your town above to see the ones that cover you.
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Questions people ask
The cost of a basement conversion can vary significantly based on factors such as size, complexity, and the materials used. Additional costs may arise from necessary structural work, damp proofing, and the quality of finishes selected.
The duration of a basement conversion can range from a few weeks to several months, depending on the scope of the project. Factors such as design complexity, required approvals, and contractor availability can all affect the timeline.
While general contractors can handle many aspects of a basement conversion, hiring specialists may be necessary for specific tasks such as electrical, plumbing, or structural work. It's important to ensure all work complies with local regulations.
Emergency or same-day services for basement conversions are typically not available due to the complexity of the work involved. Most projects require careful planning and scheduling to ensure quality and compliance with regulations.
Yes, many contractors offer package deals for multiple related jobs, such as basement conversions combined with renovations in other parts of the home. This can often lead to cost savings and a more streamlined process.
Out of scope work may include extensive landscaping or external modifications that are unrelated to the basement itself. It's also important to clarify that certain upgrades, like luxury finishes or additional rooms, may not be included in standard conversion packages.
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