Direct SEAI Contractor · 20 Mins to Dunboyne via M3 / N3

External Wall Insulation in Dunboyne, Co. Meath

Wrap your Dunboyne home with the certified Baumit external wall insulation system. Isotherm is your direct SEAI Registered Contractor (#10423) operating from Unit 20, Westlink Industrial Estate, Kylemore Road, Inchicore, Dublin 10 (D10 TD35). Our own full-time crews install graphite EPS wraps, fit bespoke aluminium window sills fabricated by Cills.ie, and deduct up to €8,000 in SEAI grants directly from your invoice.

Baumit Certified· SEAI Contractor #10423· Direct Employed Crews
2026 SEAI Grant & Net Cost Guide

Dunboyne External Insulation Net Cost Table

Isotherm deducts the SEAI grant directly from your invoice at source. You only pay the net balance upon project sign-off.

Property Type
Typical Gross Cost
SEAI Grant (Deducted)
Net Cost to You
Semi-Detached House3/4-Bed (Lutterell Hall, Castle Farm)
€13,000 – €19,000
€6,000
€7,000 – €13,000
Detached House / BungalowDunboyne Castle, Clonee Rd
€18,000 – €28,000
€8,000
€10,000 – €20,000
End-of-Terrace HouseSt. Peter’s Park, The Laurels
€13,000 – €18,000
€6,000
€7,000 – €12,000
Mid-Terrace HouseFront and rear facade walls
€9,500 – €13,500
€3,500
€6,000 – €10,000
ApartmentDunboyne Village Units
€7,000 – €10,000
€3,000
€4,000 – €7,000
Local Dunboyne Housing Stock

Insulating Dunboyne Estates & Commuter Homes

Located directly along the M3 commuter spine, Dunboyne homes have prime insulation potential to reduce ongoing heating costs and boost property value.

Lutterell Hall & Castle Farm

1990s 3- and 4-bed semi-detached houses with hollow concrete blockwork. External insulation seals heat into the structural walls and stops cold drafts through exposed gables.

The Laurels & St. Peter’s

Mature 1980s homes with uninsulated concrete blocks. Wrapping with Baumit graphite EPS eliminates condensation and upgrades energy performance from E/D to B1/A3.

Dunboyne Castle & Clonee Road

Detached family residences and dormer properties. Wrapping four exposed facades with Baumit SilikonTop silicone render provides full thermal insulation and self-cleaning exterior protection.

Completed Works · Dunboyne & Meath

Real project photos across Dunboyne

Every home is surveyed, scaffolded, wrapped with certified Baumit graphite EPS, and completed with custom aluminium window sills by our own direct crews.

Completed external wall insulation with Baumit silicone render in Lutterell Hall Dunboyne
€6,000 SEAI Grant

Lutterell Hall & Castle Farm, Dunboyne

1990s 4-Bed Semi-Detached House

System: Baumit ProSystem 100mm Graphite EPS (λ 0.031)

Finish: Baumit NanoporTop Self-Cleaning Silicone (Pebble Grey 0876)

Sill Detail: Custom aluminium window over-sills with welded end caps by Cills.ie

BER Upgrade: D1 (245 kWh/m²/yr) → A3 (60 kWh/m²/yr with Attic Upgrade)

Exterior wrap eliminated heat loss through cold gable and front bays. Gas heating consumption reduced by 46%.

External wall insulation installation with scaffolding in The Laurels Dunboyne
€6,000 SEAI Grant

The Laurels & St. Peter’s Park, Dunboyne

1980s 3-Bed Semi-Detached Home

System: Baumit ProSystem 120mm Graphite EPS

Finish: Baumit SilikonTop 1.5mm (Chalk White 0019)

Sill Detail: Bespoke RAL 7016 Anthracite Sills by Cills.ie

BER Upgrade: E1 (318 kWh/m²/yr) → B1 (84 kWh/m²/yr)

Solid concrete block gable wall insulated. Upstairs bedroom temperatures increased by 3.5°C with heating off.

Completed external wall insulation on detached residence in Dunboyne Castle
€8,000 SEAI Grant

Dunboyne Castle & Clonee Road, Dunboyne

1990s 4-Bed Detached Residence

System: Baumit OpenSystem Breathable Mineral Composite Wrap

Finish: Baumit SilikonTop 1.5mm Texture (Oatmeal Cream 0244)

Sill Detail: Aluminium sills fabricated by Cills.ie in RAL 9005 Jet Black

BER Upgrade: D2 (275 kWh/m²/yr) → B1 (78 kWh/m²/yr)

Four exterior elevations fully wrapped. Standoff brackets installed for alarm units, gas meter, and garden taps.

Certified Systems We Install

Baumit, Sto & Weber external insulation systems

We install full NSAI-certified external wall insulation systems engineered for Irish weather conditions.

Baumit ProSystem & openSystem

Our primary system for Dunboyne homes. High-density graphite EPS (λ = 0.031) or breathable openTherm mineral boards, finished with self-cleaning Baumit SilikonTop silicone render that resists algae and dirt.

StoTherm Classic & Vario

Cement-free, highly flexible external wall insulation system with outstanding impact resistance (up to 15 Joules) and self-cleaning Lotus-Effect silicone facade finishes for high-exposure rural properties.

Weber & Ceresit Systems

NSAI-approved mineral wool and EPS insulation systems suitable for solid concrete block, stone cottages, and modern blockwork with breathable, weather-tight silicone and acrylic topcoats.

Dunboyne FAQs

Common questions from Dunboyne homeowners

How much does external wall insulation cost in Dunboyne in 2026?+

For a standard 3 or 4-bedroom semi-detached house in Dunboyne (such as in Lutterell Hall, The Laurels, or Castle Farm), external wall insulation costs between €13,000 and €19,000 gross. As an SEAI Registered Contractor (#10423), Isotherm deducts the €6,000 SEAI grant directly from your invoice, leaving a net out-of-pocket investment of €7,000 to €13,000. Detached family homes in Dunboyne Castle or Clonee Road cost €18,000 to €28,000 gross (net €10,000 to €20,000 after the €8,000 grant), while mid-terrace houses receive €3,500 and apartments receive €3,000.

How fast can Isotherm crews reach Dunboyne from your Inchicore depot?+

Our operations base and fabrication workshop are located at Unit 20, Westlink Industrial Estate, Kylemore Road, Inchicore, Dublin 10 (D10 TD35). Taking the M50 and M3 / N3 corridor, our installation crews and delivery vehicles reach Dunboyne in only 18 to 22 minutes, allowing rapid daily site supervision and material delivery.

Why is external wall insulation popular on 1980s and 1990s Dunboyne homes?+

Suburban developments in Dunboyne often feature 100mm cavity block walls or 215mm solid/hollow concrete blockwork with high thermal transmittance. Cold air penetrates through exposed gables and around window reveals, leading to condensation and high heating costs. Our Baumit graphite EPS wrap stops thermal bridging across 100% of the exterior wall surface.

Do I need planning permission for external wall insulation in Dunboyne?+

For standard residential housing across Dunboyne estates, external insulation is classified as Exempted Development under Section 4(1)(h) of the Planning and Development Act 2000. For properties listed as Protected Structures or located in village core conservation areas, planning consultation with Meath County Council is recommended. We confirm planning exemption status during our survey.

How do you handle window sills on Dunboyne house wraps?+

Because 100mm–150mm insulation extends beyond existing window sills, we install bespoke powder-coated aluminium window sills fabricated by our sister workshop, Cills.ie. Each sill includes welded watertight upstands, thermal separation tape, and extended drip edges to protect the new render facade from staining.

Can I qualify for an SEAI grant if I already received a cavity bead grant?+

Yes. Under the SEAI 2026 'second wall measure' rules, Dunboyne homeowners who previously had cavity bead insulation pumped into their walls are fully eligible to claim the €6,000 to €8,000 external wall insulation grant to reach A-rated thermal efficiency.

Book your free on-site survey in Dunboyne

Our direct installation crews cover Lutterell Hall, The Laurels, Castle Farm, St. Peter’s Park, and all Dunboyne areas. Up to €8,000 in SEAI grants deducted straight from your invoice.

Direct contractor crews · Unit 20, Westlink Industrial Estate, Inchicore, Dublin 10 · SEAI #10423