Home Insulation — Attic & Cavity Wall by SEAI-Registered Installers
Post your insulation job for free and get matched with one vetted, insured local trader. Most homeowners receive a free, no-obligation itemised quote within a few hours — nationwide, from Dublin to Galway.
- 100% free for homeowners
- ID-verified & insured traders
- Most jobs quoted within hours
Backed by the Jobiit Guarantee
What does an insulation installer do?
Attic, cavity wall, external wall and pumped insulation with SEAI grant support and BER uplift — by vetted, insured local traders.
Insulation contractors install thermal insulation in homes — attic insulation, cavity wall insulation, internal wall insulation, external wall insulation, and floor insulation. Home insulation is the single most cost-effective energy upgrade for most Irish homes, with attic top-ups paying back in 2–4 years. SEAI grants provide funding for several insulation types, either standalone or as part of a deep retrofit through a One-Stop-Shop, and a good installer will advise which route suits your home and handle the grant administration.
Most Irish homes built before 2008 have under-specified insulation by current standards. Attic insulation in 1980s-90s homes is often 100–150mm of fibreglass, versus the 300mm of mineral wool or 200mm of rigid PIR specified today. Cavity walls in homes built 1976–1990 typically have empty cavities; later builds had partial fill that has since slumped. External wall insulation is the most disruptive and expensive option but transforms older solid-wall homes, while internal wall insulation is the alternative when external is impractical. Whichever upgrade you're weighing, start with a survey of what's already in the attic and walls — the right sequence saves money and maximises the BER uplift.
Common insulation installer services
From routine fixes to bigger projects — here's what Irish insulation installers on Jobiit typically handle.
- Attic insulation top-up
- Cavity wall insulation
- Internal wall insulation (IWI)
- External wall insulation (EWI)
- Floor insulation (suspended timber)
- Floor insulation (solid concrete)
- Pipe and tank insulation
- Hatch and loft door upgrade
- BER assessment and grant administration
- Air-tightness improvements
How much does an insulation installer cost in Ireland?
Indicative pricing — your actual quote will vary
Insulation pricing depends on the insulation type and the size of your home. The figures below are indicative Irish ranges before SEAI grants are deducted — treat them as a guide rather than a quote, and insist on a written, itemised quote before any work starts.
Attic insulation top-up to 300mm on a 3-bed semi typically runs €1,200–€2,000. Cavity wall fill on a 3-bed semi is €1,500–€2,800. Internal wall insulation (per wall, mid-room): €1,800–€3,500 per major wall. External wall insulation (whole 3-bed semi exterior): €18,000–€32,000. Floor insulation for a suspended timber floor (3-bed semi ground floor): €4,500–€8,500. SEAI grants typically cover 30–50% of cost on standalone work and 50%+ as part of a One-Stop-Shop deep retrofit. Grants are paid to registered contractors, so the price you're quoted should already reflect the deduction. Your final figure depends on access, attic clearance, wall condition, and whether ventilation upgrades are needed alongside the insulation itself.
These are indicative ranges based on typical Irish jobs. Final pricing depends on scope, materials, and urgency. On Jobiit your matched trader sends one fully itemised quote (labour, materials, VAT) so there are no surprises.
Why hire your insulation installer through Jobiit
We built Jobiit to fix what's broken about finding tradespeople in Ireland.
Verified & insured traders
Every trader on Jobiit passes a government-ID check and holds valid public liability insurance before they can take a single job.
Secure payments
Pay through the app or using tap-to-pay, securely with Stripe.
No lead fees, ever
Free for homeowners. Traders pay a small platform fee on completed jobs only — never per lead.
Real reviews, real ratings
All reviews come from completed, paid jobs. No fake stars. See what actual customers said before you book.
How we vet every trader
- 1
ID verification
Every trader passes a government-issued ID check before they can quote on jobs.
- 2
Insurance & qualifications
Public liability insurance, trade-specific qualifications, and registrations are validated and kept current.
- 3
Real reviews, no fakes
Reviews can only be left after a paid, completed job. No anonymous ratings.
- 4
Dispute resolution
In-app dispute process with mediation by our support team if you and your trader can't agree.
Insulation Installers in Dublin, Cork, Galway & across Ireland
Jobiit covers the whole of Ireland. Wherever you are, vetted local insulation installers take jobs near you.
- Dublin
- Cork
- Galway
- Limerick
- Waterford
- Drogheda
- Swords
- Dundalk
- Bray
- Navan
- Kilkenny
- Sligo
Insulation Installer FAQs
Where should I start with insulation?
Always attic first — it's the cheapest, least disruptive, highest-impact upgrade. A 3-bed semi with poor attic insulation typically loses 25% of its heat through the roof. Top-up to 300mm costs €1,200–€2,000 (often less than €600 after SEAI grant) and pays back in 2–4 years. Cavity walls next if you have them (1976–1990 homes typically empty). External or internal wall insulation is for solid-wall homes (pre-1976) and is a bigger investment with a much bigger payback.
Can I get an SEAI grant?
Most homeowners qualify for SEAI grants on insulation work. Standalone grants: attic insulation €400–€800, cavity wall €700–€1,700, external wall €4,000–€8,000 (depending on home size). One-Stop-Shop deep retrofits (where insulation is bundled with heat pump and controls) attract larger grants — typically 30–50% of total project cost. Grants are paid to registered contractors, so you get the post-grant price upfront. The home must be built before 2011 for most grants.
External wall insulation — is it worth the cost?
For pre-1976 solid-wall Irish homes, often yes. EWI transforms thermal performance — typical pre-1976 walls have U-value 1.8–2.2 W/m²K vs target of 0.27 W/m²K with EWI. The home becomes meaningfully warmer, heating bills drop 30–50%, and it's the only practical route to Heat Pump readiness for solid-wall homes. The downside is cost (€18,000–€32,000 before grant) and the change to the building's external appearance. EWI is irreversible in practice.
Will cavity wall fill cause damp?
Properly installed by a registered contractor on a suitable wall — no. Older mid-1990s cavity fills did cause issues in exposed coastal locations or homes with pre-existing rain penetration. Modern bonded bead and EPS fills, plus pre-install assessment, prevent this. Reputable installers won't fill walls that show damp risk (heavy weather exposure, cracked render, salt-crystal staining). Always use an SEAI-registered installer with NSAI certification.
How long does insulation last?
Attic insulation: 40+ years in stable conditions. Most fibreglass and mineral wool in lofts is the original product from the build date. Cavity wall insulation: 25+ years. EWI: 30–40 years for the insulation, similar for the render finish. Internal wall insulation: 30+ years. Insulation rarely needs replacement; the cost question is whether to upgrade older thinner insulation to current spec.
Will my number be passed around to a list of insulation companies?
No. Jobiit doesn't run a bidding marketplace where dozens of businesses compete for your details. Your job goes to one vetted local trader — ID-verified, insured, and matched on proximity and rating — and all messaging happens in-app. You'll get a free, no-obligation itemised quote; most homeowners receive one within a few hours. Posting your job is completely free.
Your questions, answered
New to Jobiit? Here's how hiring through the platform works.
Is it free to post a job and get a quote?
Yes — Jobiit is 100% free for homeowners. Posting a job costs nothing, and there are no booking fees, service charges, or subscriptions. You only ever pay the price on your trader's itemised quote. Traders pay a small platform fee on completed jobs — never you.
Are the traders vetted, insured, and qualified?
Every trader passes a government-ID check (via Stripe Identity) and holds valid public liability insurance before they can take jobs on Jobiit. Trade-specific registrations — like RGI for gas work and Safe Electric for electrical — are validated, and we monitor insurance expiry automatically.
How fast will I hear back?
Most homeowners receive their free, itemised quote within a few hours of posting. Your job is matched to one available local trader — so you get a real quote quickly, not a queue of callbacks to sit through.
Will my phone number get passed around?
No. Jobiit isn't a lead-selling site — we don't hand your details to a list of businesses that then compete to call you. Your job is matched to one vetted trader, and messaging happens in the app, so you stay in control of the conversation.
Need an insulation installer? Post your job in 60 seconds.
Free to post. Get matched with one vetted, insured local insulation installer and a full itemised quote. Pay securely when the work is done.
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