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Compare verified general building contractors and turnkey home building services across Ireland. Get transparent 2026 house construction costs per m², check insurance & tax clearance, and request competitive tenders.
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Whether you are commissioning a bespoke one-off new build, constructing a large architectural house extension, or refurbishing a derelict property, selecting a financially stable, technically competent main building contractor is the single most important decision of your project. A dedicated home building service coordinates every structural package—from groundworks and steel erection to NZEB airtightness and mechanical commissioning—under one accountable contract.
At Constructors.ie, we are not a spammy lead directory. We carefully filter and verify established Irish construction companies, confirming company registration, active insurance cover, and real project track records before assigning homeowner projects.
Established Irish building companies with verified Public & Employer’s Liability insurance and proven residential portfolios.
Flexible contract options ranging from watertight shell & core to full turnkey A-rated home building services.
Full compliance with TGD Part L (NZEB), staged mortgage certifications, SEAI energy grants, and Vacant Property Grants.
Current 2026 tender rates per square metre for residential building services across Ireland:
| Construction Service Type | Cost / m² | Typical Size | Estimated Budget | Timeline | Scope of Works |
|---|---|---|---|---|---|
| New Build One-Off House (Builder’s Finish) | €1,950 – €2,450 / m² | 180 m² – 220 m² | €360,000 – €520,000 | 8 – 11 months | Full site foundations, cavity block or ICF/timber frame superstructure, slate/tile roof, triple glazing, first & second fix M&E (heat pump & UFH), plastered walls, internal joinery, and external render. |
| Turnkey Custom Home Building Service (A1 / A2 BER) | €2,500 – €3,300 / m² | 180 m² – 250 m² | €460,000 – €790,000 | 10 – 14 months | Complete walk-in turnkey construction service including bespoke kitchen, tiled bathrooms and sanitaryware, fitted wardrobes, engineered flooring, solar PV array, MVHR ventilation, and driveway landscaping. |
| Single-Storey Rear Home Extension & Knock-Through | €2,200 – €3,200 / m² | 30 m² – 45 m² | €75,000 – €145,000 | 12 – 16 weeks | Structural RSJ steel beam installation, insulated concrete slab, flat roof membrane with roof lantern, lift-and-slide aluminium patio doors, underfloor heating, and full interior completion. |
| Full-House Structural Remodel & Deep Energy Retrofit | €1,800 – €2,800 / m² | 110 m² – 160 m² | €195,000 – €420,000 | 16 – 24 weeks | Complete strip-out, internal wall reconfiguration, full RECI rewire, new plumbing & air-to-water heat pump, external wall insulation (EWI), new windows, and B2+ or A-rated BER certification. |
* Explore specialist guides for House Extensions, Home Renovations, Self-Build Contractors, and Modular Homes Ireland.
Mandatory compliance standards for residential construction services in Ireland:
Every general builder and construction service on our platform is checked for active Public Liability (€2.6m–€6.5m) and Employer’s Liability (€13m) cover before receiving homeowner enquiries.
For new home building and major extensions, your main contractor must work seamlessly with your Assigned Certifier or Structural Engineer to provide staged mortgage drawdown certificates and Opinions on Compliance.
A valid Revenue Tax Clearance Certificate is mandatory for SEAI energy upgrade grants, Vacant Property Refurbishment Grants (up to €70,000), and local authority adaptation funding.
Professional home building services operate on written RIAI contracts with transparent Bills of Quantities (BOQ), where stage payments are only released upon verified completion of each construction phase.
How residential building projects are delivered from tender to certification:
Prepare architectural plans, structural engineering calculations, and a detailed Schedule of Works or Bill of Quantities so every builder prices the exact same specification.
Compare itemised quotes from 3 verified local general builders. Review recent completed home building projects, speak with past homeowner references, and verify insurance certificates.
Site clearance, strip or raft foundations, radon barrier installation, blockwork/ICF/timber frame erection, structural steelwork, and weather-tight roof construction.
Installation of triple-glazed windows, airtightness membranes, mechanical heat recovery ventilation (MVHR) ducting, underfloor heating pipework, and RECI electrical wiring.
Plastering, tiling, kitchen and bathroom installation, final air permeability testing, BER certification, and handover of all BCAR / Engineer compliance certificates.
Compare vetted building contractors serving your area or request matching quotes below.
Your walls are leaking heat. We wrap them.
Unit 20, Westlink Industrial Estate, Kylemore Road, Inchicore, Dublin 10, D10 TD35
Isotherm is a direct Dublin EWI and ICF contractor based in Unit 20 Inchicore. Installing NSAI-certified Baumit external wall insulation and structural ICF builds across Dublin, Kildare, and Leinster.
High-Quality Home Renovations & House Extensions in Dublin & Leinster
Glenageary, Co. Dublin, Ireland
Based in Glenageary, Co. Dublin, Structure Build specializes in residential home renovations, house extensions, and bespoke carpentry across Dublin and the Leinster area.
Browse local home building services and general contractors across all 32 counties:
In 2026, hiring a main building contractor to build a new one-off house in Ireland typically costs between €1,950 and €2,450 per square metre for a Builder’s Finish, or €2,500 to €3,300+ per square metre for a full Turnkey finish (including kitchen, tiling, flooring, and sanitaryware). In Dublin and the Greater Leinster area, a typical 200 sq. m. four-bedroom family home ranges from €440,000 to €620,000 excluding site purchase and professional fees.
A main contractor (general builder) manages the entire construction project from site groundworks to final handover. This includes excavation, concrete foundations, masonry blockwork or timber/ICF framing, roofing, window installation, plastering, and coordinating certified subcontractors (RECI electricians, RGI/SEAI plumbers, carpenters, and tilers) under a single fixed-price contract and project schedule.
A Builder’s Finish delivers a structurally complete, plastered, wired, and plumbed home with internal doors, skirting, architraves, and heating operational—leaving the homeowner to supply their own kitchen cabinetry, floor coverings, wall tiling, and final painting. A Turnkey Finish includes all kitchens, wardrobes, tiling, wooden floors, and decorating so the house is ready to move into immediately.
Always verify four things before signing a contract: (1) CRO company registration and trading history in Ireland, (2) active Public Liability and Employer’s Liability insurance directly with their broker, (3) valid Revenue Tax Clearance status, and (4) inspect at least two recently completed residential builds in person. Constructors.ie pre-screens contractors before listing them.
Yes. Main building contractors on Constructors.ie regularly deliver full refurbishments qualifying for the Vacant Property Refurbishment Grant (Croí Cónaithe up to €50,000 for vacant homes or €70,000 for derelict properties), providing the required itemised quotes and valid tax clearance documentation for your local County Council.