Carlow · checked 29 October 2026

House wrap in Carlow

External wall insulation, the wrap. The grant is national. The walls in Carlow aren't. What SEAI's BER register and Census 2022 say about homes in Carlow, Tullow and Bagenalstown, and what it means for wrapping yours.

Figures checked against seai.ie on 29 October 2026.

housewrap.ie is not SEAI or a government body and does not award grants.

16%of Carlow pre-2011 walls: no insulation

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On Carlow's BER certificates for homes built before 2011, 13% record solid or hollow block walls, which can't take a cavity fill, and 16% of walls with a recorded type have no insulation at all, against 18% and 21% across Ireland. Only 37% of homes here were built before 1981, against 41% nationally.

The grant itself is the same in every county: €3,000 to €8,000 by home type (seai.ie, checked 29 October 2026). We pass your request to one SEAI-registered external insulation contractor who covers Carlow.

What stands out about Carlow homes

SEAI pays the same grant in every county. The walls aren't the same. Against the national figures, these are the things that stand out in Carlow, from Carlow, Tullow and Bagenalstown to the rest of the county:

  • 16% of Carlow's pre-2011 walls have no insulation, against 21% nationally, the 19th highest of the 26 counties. That's a main wall with a U-value of 1.0 or worse on the BER, the wall the wrap does most for.
  • Only 37% of Carlow homes were built before 1981, against 41% nationally (Census 2022). Newer homes are more likely to have some insulation in the walls already.
  • 48% of Carlow's hollow block walls have no insulation, against 35% nationally, the 10th highest of the 26 counties. Hollow block can't be pumped, so the wrap or dry lining are its grant routes.
  • Carlow is milder than average. Near Carlow town, Met Éireann's averages give about 1,969 heating degree days a year, against 2,079 for Ireland. The same wall loses about 5% less heat here, so the wrap saves a little less.

Carlow and Ireland compared

CarlowIrelandRank of 26
Households, Census 202222,1741,836,728
Built before 19199%8%9th
Built before 198137%41%17th
Detached houses51%41%18th
Terraced houses16%20%8th
BERs for homes built before 20119,759751,700
Solid or hollow block walls13%18%19th
Walls with no insulation16%21%19th
Rated E, F or G23%25%21st
BERs for grant claims per 1,000 pre-2011 homes, 202642.442.119th
Heating degree days a year1,9692,07914th

Households, year built and home type: CSO Census 2022 (table F2007A), councils in the county added together. BER figures: SEAI BER Research Tool, the full public file downloaded 29 October 2026: 751,700 certificates for existing homes built before 2011, leaving out the BERs done for grant claims. Degree days near Carlow town: our sum from Met Éireann's 1991–2020 grid. Ranks are ours, 1st being the highest.

Next door, the share of pre-2011 walls with no insulation: Kildare 15%, Wicklow 23%, Wexford 15%, Kilkenny 18%, Laois 17%. All 26 counties side by side.

The walls on Carlow BERs

SEAI's register holds 9,759 BER certificates for Carlow homes built before 2011, leaving out the ones done for grant claims. Their main wall, and the grant route each one takes:

Main wallCarlowIrelandFor the wrap
Solid stone, brick or concrete10%14%The wrap's usual job, or dry lining
Hollow block3.4%4.2%Can't be pumped: the wrap or dry lining
Empty cavity4.4%4.5%Cavity fill first, then the wrap as a second measure
Cavity, part insulated34%28%A survey decides
Filled cavity17%16%The wrap as a second wall measure
Timber frame16%6%Ask the contractor about the system
Other or not recorded15%27%

Empty cavity: a cavity wall with a U-value of 1.0 or more. Source: SEAI's BER register, as above. Our count.

Solid and hollow block walls can't take a cavity fill, so the wrap or dry lining are their only grant routes. How many of them are still bare in Carlow:

Walls with no insulation (U-value 1.0 or more)CarlowIreland
Solid stone, brick or concrete72%67%
Hollow block48%35%
Every wall type16%21%

Share of walls of each type with a recorded U-value: SEAI's BER register, as above. Our count.

9% of Carlow homes were built before 1919, against 8% nationally (CSO Census 2022). Traditional homes, typically pre-1940 solid masonry walls of brick or stone without a cavity, can't get wall insulation grants under Better Energy Homes. SEAI directs them to its Traditional Homes Pilot Scheme (SEAI homeowner application guide, checked October 2026). A cavity wall that's still empty should be filled first: the cavity grant is smaller, and the wrap stays open afterwards as the second wall measure. Our sister site covers cavity wall insulation in Carlow.

The wrap is priced by the square metre: €110–€160 per m² all-in, including scaffold and a standard render and VAT, from two Irish guides (Isotherm; ShamFix, 19 July 2026). So the size of the job is the wall. Of Carlow houses built before 2011, the commonest type is the detached house (Census 2022). On BERs the median detached house has 129 m² of outside wall, against 128 m² nationally, about the same.

Home typeOutside wall, CarlowIreland
Detached house129 m²128 m²
Semi-D91 m²91 m²
End of terrace86 m²85 m²
Mid-terrace50 m²48 m²
Apartment53 m²43 m²

Median wall area recorded on BER certificates for Carlow homes built before 2011: SEAI's BER register, as above. Our medians.

Home types and planning in Carlow

The grant follows the home type. Since 27 July 2026 the wrap is exempted development on a house if it's no more than 150 mm thick on the front, rear or gable, doesn't encroach on a public road, and doesn't make the house look out of character with its neighbours (S.I. No. 341 of 2026). That last test matters most where houses share a wall and a street line: semi-detached and terraced houses are 42% of Carlow homes, against 45% nationally.

Home typeCarlowIrelandSEAI wrap grant
Detached house51%41%€8,000
Semi-detached house26%25%€6,000
Terraced house16%20%€3,500 mid, €6,000 end
Flat or apartment7%13%€3,000

Share of households: CSO Census 2022, table F2007A. Grants: seai.ie wall insulation page, checked 29 October 2026.

A house that opens straight onto the footpath, a protected structure or a home in an Architectural Conservation Area should check with the council first, and a Section 5 declaration gives a formal answer. Planning permission for the wrap has the detail, and finishes covers keeping the look in character.

Heating, weather and grant claims in Carlow

The grant doesn't depend on the fuel, but the fuel prices the heat a bare wall loses. 53% of Carlow households heat mainly with oil (CSO Census 2022), and SEAI's fuel cost comparison of 1 July 2026 puts heating oil at 12.6c per kWh, VAT included (SEAI). Electricity, at 34.38c, costs more than twice as much per unit of heat as oil or gas.

Main central heatingCarlowIreland
Oil53%39%
Natural gas23%33%
Electricity9%12%
Coal, peat or wood8%9%

Share of all households, including those that didn't state a fuel: CSO Census 2022, table SAP2022T6T5CTY.

Carlow town has about 1,969 heating degree days a year on Met Éireann's 1991–2020 averages, against 2,079 for Ireland (our sum, base 15.5°C). The heat a wall loses rises in step with that number. 23% of Carlow's pre-2011 BERs are rated E, F or G, against 25% nationally (SEAI's BER register).

Every SEAI home grant needs a BER after the work, so the BERs done for grant claims track finished grant jobs of every kind, walls included. In Carlow there were 785 in 2024, 824 in 2025 and 845 in 2026 up to 29 October: 42.4 per 1,000 homes built before 2011, against 42.1 nationally (SEAI's BER register).

The house wrap grant by home type

The grant is the same in Carlow as in every other county: a fixed amount by home type, whatever the contractor charges. There is no higher welfare rate for the wrap.

Home typeExternal wall insulation grant
Detached house€8,000
Semi-D or end of terrace€6,000
Mid-terrace€3,500
Apartment€3,000

seai.ie wall insulation page, checked 29 October 2026.

What's left after the grant, on SEAI's national median costs for January to June 2026. SEAI publishes no Carlow median, and we don't invent one:

Home typeSEAI median installed costSEAI grantTypical cost after grant
Detached house€26,500€8,000€18,500
Semi-D or end of terrace€23,219€6,000€17,219
Mid-terrace€14,000€3,500€10,500
Apartment€11,300*€3,000not shown*

Costs: SEAI median costs, January to June 2026, from SEAI's median costs PDF (a sample of 23,412 completed upgrades; the cost each contractor submitted to SEAI at grant payment; VAT status not stated on the PDF), read 29 October 2026. *SEAI's apartment median comes from five completed homes, so no cost after the grant is shown. Grants: seai.ie wall insulation page, checked 29 October 2026.

  • A home built and occupied before 31 December 2010, with an MPRN
  • Every external wall fully insulated: partial insulation isn't eligible
  • A U-value of 0.27 W/m²K or better on the wrapped wall (SEAI quality alert)
  • An SEAI-registered contractor, and SEAI's grant offer before work starts

The rules in full: house wrap grant, cost, external, internal or cavity and the second wall grant. Over 66 or on Fuel Allowance? See the grant for pensioners.

FAQ

Carlow questions

Is the house wrap grant different in Carlow?

No. SEAI pays the same fixed amounts in every county: €3,000 to €8,000 by home type. What differs is the walls: 16% of Carlow's pre-2011 walls have no insulation, against 21% nationally.

How many Carlow homes have walls with no insulation?

16% of walls with a recorded type and U-value on BER certificates for Carlow homes built before 2011, the 19th highest share of the 26 counties. Of the solid walls, 72% have none; of the hollow block walls, 48%.

How many Carlow homes have solid or hollow block walls?

13% of Carlow's pre-2011 BERs record solid or hollow block walls, against 18% nationally. Neither can take a cavity fill, so the wrap or dry lining are the grant routes.

Do I need planning permission for the wrap in Carlow?

Usually not, since 27 July 2026. The Class 63 exemption is national: up to 150 mm on the front, rear or gable, off the public road and in keeping with the neighbours. Semi-detached and terraced houses, 42% of Carlow homes, are where matching the neighbours matters most. If unsure, ask your council for a Section 5 declaration.

Who will ring me in Carlow?

One SEAI-registered external insulation contractor who covers Carlow. They look at the house, the walls, the sills and how the electricity cable reaches it, and give you a written price with VAT. Nothing is booked until you say yes.

Your grant

Your house wrap grant in 3 taps

Tap your home type, when it was built and any earlier wall grant. Your SEAI grant shows as you go. Then leave your number and one SEAI-registered external insulation contractor who covers your area rings you with a price.

What type of home is it?

SEAI pays a fixed amount for each type of home.

By sending, you agree to House Wrap passing your details to one SEAI-registered external insulation contractor who covers your area, so they can contact you about the job. housewrap.ie is not SEAI or a government body and does not award grants. Privacy notice

Sources (2)

Prices and facts on this page were checked against these published pages. We are not connected to these businesses.

  1. Isotherm: isotherm.ie
  2. ShamFix: shamfix.ie