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FixMyBER

Home energy upgrades in Cavan

SEAI’s grants are the same everywhere. The homes are not. Here is what 3,312 published BERs say about homes in Cavan, who SEAI registers to do the work here, and where to start.

Homes in Cavan, from their BERs

Attic short of the grant standard
81%
Heat loss 2.3 or lower
56%
Commonest heating
oil, 66%
Commonest walls
filled cavity, 55%

A heat loss indicator of 2.3 or lower is what lets a home built before 2007 skip the technical assessment for a heat pump grant. Check yours

Published BERs for homes in Cavan by type and age
HomeBERsWalls, most oftenAttic shortHeat loss ≤ 2.3
Detached house, before 1940404solid stone or brick 89%96%7%
Detached house, 1940–1969230solid stone or brick 39%87%7%
Detached house, 1970–1989295filled cavity 69%81%7%
Detached house, 1990–2004526filled cavity 80%88%45%
Detached house, 2005–2010481filled cavity 65%87%91%
Semi-detached house, 1990–2004454filled cavity 57%83%70%
Semi-detached house, 2005–2010554filled cavity 55%79%98%
Apartment, 1990–2004161filled cavity 42%50%76%
Apartment, 2005–2010207filled cavity 47%41%90%

Existing homes assessed since 2019, in groups of at least 150 BERs. SEAI BER Research Tool, file of 8 September 2026. A pattern across homes, not a fact about any one.

Who SEAI registers to work in Cavan

687 companies on SEAI’s registers serve Cavan; 21 are One Stop Shops. Registration is a fact about paperwork; SEAI does not endorse their work, and neither do we.

  • Attic insulation215
  • Cavity wall insulation51
  • Internal wall insulation200
  • External wall insulation79
  • Windows and doors136
  • Heat pumps140
  • Solar panels291
  • Heating controls139
  • Solar hot water60

The companies in Cavan, with their websites

Where to start in Cavan

Worked plans for the commonest age of each type of home here, then your own.

Get the plan for your home

SEAI grant figures as read on 26 September 2026. They are the same in every county. Every grant, and what it pays · What order should a retrofit go in?