Complete Insulations
- Attic Insulation
- Cavity Insulation
- Internal Insulation
- External Insulation
SEAI registered for the measures shown above.
SEAI contractor number 12529.
Visit Website (opens in a new tab)Companies currently registered with SEAI for attic, cavity, internal or external insulation. Visit any company's website directly to get in touch.
SEAI registration for insulation work is specific to each measure. Attic insulation, cavity wall insulation, internal wall insulation and external wall insulation are each registered separately. A company shown below is only listed against the specific measure or measures confirmed for it, not insulation work in general. This is a factual registration status only. It does not mean that SEAI or Upgrader.ie approves, endorses, vets or guarantees the company or its workmanship.
Listed alphabetically by company name. No rankings, ratings or recommendations.
This directory lists a selection of SEAI registered companies, not the complete SEAI register. To search every registered company, use SEAI's official registered professional directory (opens in a new tab).
SEAI registered for the measures shown above.
SEAI contractor number 12529.
Visit Website (opens in a new tab)SEAI registered for the measures shown above.
SEAI contractor number 14662.
Visit Website (opens in a new tab)SEAI registered for the measures shown above.
SEAI contractor number 15939.
Visit Website (opens in a new tab)SEAI registered for the measures shown above.
SEAI contractor number 13972.
Visit Website (opens in a new tab)SEAI registered for the measures shown above.
SEAI contractor number 17244.
Visit Website (opens in a new tab)SEAI registered for the measures shown above.
SEAI contractor number 10606.
Visit Website (opens in a new tab)SEAI registered for the measures shown above.
SEAI contractor number 10131.
Visit Website (opens in a new tab)SEAI insulation grants vary by measure and dwelling type, the three wall insulation grants currently require every external wall to be insulated, and the grant must be approved before work starts. Ask each company to set out:
Our independent guide covers attic, cavity, internal and external wall insulation, and how to prioritise between them.
What to check about depth, condition and gaps before deciding whether it needs topping up.
Read guide
A practical decision framework covering disruption, floor area, appearance and planning.
Read guide
Why breathability matters and when a solid wall or heritage property needs a different route.
Read guideUpgrader.ie provides independent information to help people find companies offering home upgrade services in Ireland. Inclusion in this directory is not an assessment or recommendation by Upgrader.ie. Registration and company details can change, so check current information before proceeding. Companies do not currently pay to appear in these listings.