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Insulation and Home Energy Upgrades in Dublin
Cavity wall, internal and external wall insulation, floors, draught proofing and full retrofits across Dublin, with SEAI grant guidance. Tell us about your home and we will get the right contractor to you.
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- 📍 Coverage Area: Dublin
- 🛠️ Response Type: Local vetted operators
- 🛡️ Standards: Certified & insured tradespeople
Popular insulation guides and services
[Insulation] in Dublin
Our vetted local tradespeople cover Dublin, ready to get your issue assessed and resolved as quickly as possible.
- Covering 65 areas across 9 Dublin districts
- A price guide for every job
- What to check before you hire
- Call or send us your job details
Available Services Across Dublin
Browse trusted trade services across Dublin for urgent repairs, planned jobs and specialist work.
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Quick access to the right service and local area coverage across Dublin.
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Reliable support for homeowners, landlords and businesses looking for the right contractor for the job.
How insulation should be done
Insulation works best as part of a plan covering walls, roof, floors and draughts together, with ventilation designed in so moisture isn't trapped. Many Dublin homes built before the 1980s have solid walls or empty cavities, while homes from the 1980s to 2000s often have partial cavity fill that can be topped up. SEAI grants are available for many insulation measures when the work is done by a registered contractor.
What usually affects the price:
- Wall type (cavity, solid or timber frame)
- House size and number of exposed walls
- Insulation material and thickness
- Ventilation and making good around fittings
- Whether an SEAI grant is being used
What to check before you hire an insulation contractor
- Use an SEAI-registered contractor if you plan to claim a grant
- Don't start work before your grant is approved
- Ask for a ventilation check as part of the job
- Check what making good is included (sockets, skirting, window reveals, external fittings)
- Ask for the product's NSAI Agrément or equivalent certification
Insulation services and typical prices
- Cavity Wall Insulation – typical cost €1,200–€3,000
- Internal Wall Insulation – typical cost €6,000–€18,000
- Draught Proofing – typical cost €300–€1,200
- Floor Insulation – typical cost €2,000–€8,000
- Room-in-Roof Insulation – typical cost €3,000–€9,000
- SEAI Grant Insulation Works – typical cost €1,200–€35,000 before grants
Larger projects:
- External Wall Insulation – Insulating the outside of the house with an insulated render system. (€15,000–€35,000)
- Deep Retrofit – A whole-house upgrade towards a B2 BER or better, combining insulation, windows, ventilation and a heat pump. (€40,000–€90,000+ before grants)
See the full Insulation cost guide for how prices are worked out.
Insulation contractors across Dublin's 9 districts
Choose your district for local information and the areas included.
| District | Areas covered |
|---|---|
| North Dublin City | Artane, Cabra, Clontarf, Coolock, Drumcondra, East Wall, Fairview, Glasnevin, Phibsborough, Stoneybatter |
| Dublin North Coast | Raheny, Baldoyle, Donaghmede, Howth, Sutton, Portmarnock, Malahide |
| North County Dublin | Swords, Lusk, Rush, Skerries |
| Dublin 15 | Blanchardstown, Castleknock, Mulhuddart, Ongar, Hansfield, Ashtown |
| West Dublin & Leixlip | Chapelizod, Palmerstown, Lucan, Leixlip, Adamstown, Clondalkin |
| South West Dublin | Tallaght, Citywest, Firhouse, Knocklyon, Ballyboden, Templeogue, Walkinstown, Kimmage, Rathfarnham, Terenure |
| South Dublin City | Ballsbridge, Donnybrook, Sandymount, Ranelagh, Rathgar, Harold's Cross, Churchtown, Dundrum |
| Dún Laoghaire & South Coast | Blackrock, Booterstown, Monkstown, Dún Laoghaire, Dalkey, Killiney |
| Stillorgan, Sandyford & Foxrock | Mount Merrion, Stillorgan, Goatstown, Sandyford, Cherrywood, Cabinteely, Foxrock, Deansgrange |
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Frequently Asked Questions
Are there SEAI grants for insulation?
Yes. SEAI offers grants for attic, cavity wall, internal and external wall insulation for qualifying older homes. Check seai.ie for current amounts and conditions.
Will insulation cause damp?
Not when it is installed properly with adequate ventilation. A ventilation check should be part of any insulation job.
Which insulation saves the most?
For most homes, attic and cavity wall insulation give the quickest payback. Solid-wall homes gain most from internal or external wall insulation.
Do I need planning permission for external wall insulation?
Often not, but it can be needed in some cases, including protected structures and conservation areas. Check with your council before you start.
How much does an insulation contractor cost in Dublin?
It depends on the job. Our insulation cost guide lists typical Dublin prices for each service, from €1,200–€3,000 for cavity wall insulation upwards.
Which areas do you cover?
All 65 areas across Dublin's nine districts: North Dublin City, Dublin North Coast, North County Dublin, Dublin 15, West Dublin & Leixlip, South West Dublin, South Dublin City, Dún Laoghaire & South Coast, Stillorgan, Sandyford & Foxrock.
How Emergency Trade Works
Emergency Trade connects you with independent, vetted local tradespeople across Dublin and the rest of Dublin. Before any work starts, ask for a written quote and check the right registration for the job: RGII for gas work and Safe Electric for electrical work.