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Cavity Wall Insulation
ut heat loss through your walls — expert installs since 1984
Stop heat leaking through your walls
Up to a 35% reduction in heat loss
With cavity wall insulation from Premier Insulations, up to 35% of your heat loss through external walls can be prevented. We survey your home to assess suitability — cavity width, lintels, wiring, dampness — then select the right system (bonded bead or foam‑fill) to maximise performance.
Our cavity wall systems
- Bonded Bead insulation — graphite polystyrene beads injected into the cavity
- Foam‑fill / spray foam insulation — for narrow cavities or complex homes
- New‑build & retrofit friendly — suitable for walls built in different eras
We provide full documentation and support your SEAI grant application where eligible.
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40+ years’ insulation leadership
Experts in wall and roof insulation since 1984.
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SEAI‑approved & NSAI‑certified
Eligible for grants, using trusted systems.
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Tidy crews nationwide
Quick installs, neat finish, minimal disruption — most jobs done in a day.
What you’ll gain
Benefits of cavity wall insulation
- Quicker warm‑up and fewer draughty rooms
- Lower heating bills through reduced heat loss
- Improved BER rating and higher resale appeal
- Better condensation control and indoor comfort
What customers say
“We had our cavity walls insulated and saw the difference immediately — quieter, warmer and much lower bills.”
— Homeowner, Cork
“Bonded bead system installed in our 1970s semi. Excellent job, tidy crew, great result.”
— Homeowner, Galway
Is your home suitable?
Before installing cavity wall insulation we inspect for key factors such as cavity width, moisture, wiring, and exposure. If conditions are right, we offer the two main system types to cover your home’s needs properly.
Nationwide coverage
Our trained teams service all 32 counties in Ireland, delivering consistent quality from Cork to Donegal.
Our process
- Survey & analysis — we assess wall structure, cavity and suitability
- Installation day — tidy installation with minimal disruption
- Completion & handover — warranty, photos, paperwork and optional grant support
Ready to insulate your walls?
Make your home warmer, greener, and more efficient — with Premier Insulations.
As an SEAI-approved contractor, we’ll guide you through the grant process from start to finish.
Quick answers
How long does it take?
Most cavity wall jobs take a few hours; we’ll confirm timing after your survey.
What about grants?
Yes — as an SEAI‑approved contractor we guide you through available grants. See grants.
Is every home suitable?
No — factors like cavity width, moisture and wall condition affect suitability. That’s why we start with a survey.
Will there be many holes drilled?
Only small drill holes (~22mm) are needed; they’re sealed and matched to your wall finish where required.