Combi boiler cost
Every price, by size and job.
Combi Boiler Installation Guides
Every combi boiler installation cost guide, specification comparison and homeowner resource on Combi Boiler Installation.
Free, no obligation. One registered engineer prices it, not five.
Every combi boiler installation guide on this site
Practical guides to combi boiler installation costs, options and common questions.
Converting to a combi
Cylinder and tanks out, combi in.
Oil combi boilers
For homes off the gas network.
Combi or system?
Which suits which home.
Combis for apartments
Size, flue and the management company.
Combis for large houses
When it works, when it doesn't.
Combi boiler grants
What SEAI pays, and doesn't.
Running costs
Gas, oil, LPG and electric, compared.
Electric combi boilers
Small homes, no gas, no flue.
Get a combi price in three taps
Tell us about the boiler and the home. One registered installer who covers your county rings you with a price.
Related 2026 Ireland Specialist Cost & Technical Guides
Cross-referenced Irish pricing benchmarks, SEAI/Revenue grant rules, and county specifications from partner reference hubs:
- HVAC Repair (hvacrepair.ie) — 2026 Ireland Cost & Spec Guides: Heat pump, air conditioning and ventilation repair and servicing in Ireland, all 26 counties: our price guide (heat pump service, fault call-outs, ref
- Heated Floors (heatedfloors.ie) — 2026 Ireland Cost & Spec Guides: Underfloor heating in all 26 counties of Ireland: wet systems in new builds and extensions, electric mats for bathrooms, retrofits into existing floor
- Floor Screeding (floorscreeding.ie) — 2026 Ireland Cost & Spec Guides: Floor screeding in all 26 counties of Ireland: liquid (calcium sulphate and cement-based), sand and cement, fast-drying, fibre, polymer-modified and l
- Liquid Screed (liquidscreed.ie) — 2026 Ireland Cost & Spec Guides: Liquid screed in all 26 counties of Ireland: calcium sulphate (anhydrite) and cement-based flowing screeds, depths, drying and force drying with the h
- Screeding.ie (screeding.ie) — 2026 Ireland Cost & Spec Guides: Screeding contractors in all 26 counties of Ireland for builders, developers, self-builders and commercial jobs: how a rate per m² is built, specifica
Combi Boiler Installation guides & price breakdowns
Straight answers to what people ask most: itemised costs, specifications, planning or grants, and what to check before you book.
Comparison GuideCombi or system boiler: which do you need?A combi heats water on demand from the mains. A system boiler keeps a cylinder. Which suits which home, and the prices.Read the guide →Specification GuideCombi boilers for apartmentsReplacing a combi in an apartment: size, flue rules, management company and price (€2,240–€3,000 for a 24 to 25 kW combi).Read the guide →Specification GuideCan a combi heat a large house?A combi in a 4 or 5-bed house: when it works, when a system boiler is better, and the sizes and prices.Read the guide →Grants & RegulationsIs there a grant for a combi boiler?No SEAI grant pays for a new combi. What SEAI does pay: heating controls, heat pumps and boiler scrappage.Read the guide →Cost & Pricing GuideWhat does a combi boiler cost to run?Gas costs about 13.0c a unit of energy, kerosene 12.6c, LPG 17.67c and electricity 34.38c, on SEAI's figures. What that means for a combi.Read the guide →Specification GuideElectric combi boilers: when they make senseAn electric combi has no flue and no gas, but electricity costs about 34.38c per kWh. Which homes suit one, and the alternatives.Read the guide →
More guides & resources: Combi boilers in every county · All guides & calculator hub · Technical & trade glossary · Frequently asked questions · About this site
Combi Boiler Installation across all 26 counties
Requests from all 26 counties go to one vetted local specialist who covers your county — from Dublin, Cork, Galway and Limerick to Kildare, Meath, Wicklow, Waterford and Donegal. Pick your county below for local prices, specifications and advice.
Get a combi boiler price
One registered engineer rings you. Free, no obligation.