Waterproofing in Dublin
Compare local damp proofing and waterproofing specialist pros in Dublin and get free quotes — no obligation, no call-backs you didn't ask for.
Typical price: €800–€29,900
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Waterproofing prices in Dublin
| Job size | Low | Typical | High |
|---|---|---|---|
| Damp proofing / sealant (small) Damp-proof course or sealant to a small area | €800 | €1,850 | €4,150 |
| Tanking / cavity-drain membrane Tanking or cavity-drain membrane with sump | €3,450 | €7,450 | €13,800 |
| Full basement / structural waterproofing Full below-ground system | €6,900 | €14,900 | €29,900 |
How to hire a waterproofing pro in Ireland
- Get an independent, qualified diagnosis before agreeing to a chemical damp course
- Match the method to the problem — tanking, cavity-drain membrane or damp proofing
- Insist on an insurance-backed guarantee
- Confirm the system spec for below-ground work
- Check public liability insurance and references
Damp proofing and waterproofing are unlicensed in Ireland; qualified damp surveyors and insurance-backed guarantees are the quality markers, and — as in the UK — chemical rising-damp treatments are frequently mis-sold where the real cause is condensation or a bridged damp course.
Budgeting first?
See the full breakdown of what drives waterproofing prices — job sizes, unit rates, and how to save.
Frequently asked questions
How much does waterproofing cost?
It depends on the method and area. Internal sealants and damp-proofing for a small area are the cheapest option; cavity-drain membranes and tanking cost more; a full basement or below-ground waterproofing system is the most expensive, running into five figures. The cause of the water dictates the right system.
What's the difference between damp proofing and waterproofing?
Damp proofing resists moisture and rising damp (like a damp-proof course in a wall); waterproofing resists liquid water under pressure, as in a basement below the water table. Below-ground and wet-area work needs true waterproofing, not just a damp treatment.
What waterproofing does a bathroom or wet area need?
Wet areas need a waterproof membrane behind tiles on floors and walls, correctly detailed at junctions and drains. In many countries this is regulated work with a standard to meet — a failed shower membrane is one of the most common and costly building defects.
Do I need a guarantee or warranty?
Yes — reputable structural waterproofing comes with an insurance-backed guarantee so the cover survives if the contractor ceases trading. Ask whether the guarantee is company-backed or independently insured, because a company-only warranty is worth little if they close.
How do I choose a waterproofing contractor in Dublin?
In Dublin, look for a specialist who diagnoses the water source before quoting, proposes a system matched to it, offers an insurance-backed guarantee, and shows relevant qualifications. Avoid one-size-fits-all chemical-injection sales pitches.
What does basement waterproofing cost in Ireland?
Damp proofing typically runs €700-€3,600, tanking or membrane systems €3,000-€12,000, and full basement waterproofing €6,000-€26,000.
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