Design, Cost & Planning
Oil and gas bills climb every winter and an ageing boiler only gets more expensive to run. We install air to water heat pumps for Dublin homeowners as SEAI registered contractors, and grant support of up to €12,500 is now available.
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All enquiries are reviewed by our team before a consultation is confirmed.
CIRI Registered
Construction Industry Register Ireland
5★ Google Rated
Verified by Dublin homeowners
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Construction Industry Federation
100+ Projects Delivered
Across Greater Dublin Region
A heat pump pulls renewable heat energy out of the outside air and turns it into space heating and hot water for your home. Running costs are significantly lower than an oil or gas boiler.
Modern air to water units perform well in the Irish climate and reach efficiencies of 300 to 400 per cent, producing 3 to 4 kWh of heat for every 1 kWh of electricity they use.
A heat pump only delivers that in a well insulated home. We review your heat loss and insulation levels at feasibility stage and tell you whether upgrades are needed alongside the installation.
Rated 5★ across Google, Houzz, and OnlineTradesmen by Dublin homeowners.
"Professional, reliable service with clear communication and integrity."
"Professional, reliable service with clear communication and integrity. The team kept us informed at every stage and delivered exactly what was promised. Would recommend to anyone looking for a trustworthy provider."
Read full review"Excellent communication and budget-friendly suggestions throughout."
"Excellent communication and budget-friendly suggestions throughout. They took the time to understand our needs and offered practical options at every step. The end result exceeded our expectations."
Read full review"Excellent communication and support throughout. Highly recommend."
"Excellent communication and support throughout. Highly recommend. From the first call to the final handover everything was handled professionally. The team was responsive, knowledgeable and clearly cared about the outcome."
Read full review"Outstanding work from start to finish. Couldn't be happier with the result."
"Outstanding work from start to finish. Couldn't be happier with the result. They were punctual, tidy and clearly took pride in their craft. The whole project came in on time and on budget."
Read full review"Genuinely impressed with the quality and attention to detail."
"Genuinely impressed with the quality and attention to detail. Every aspect of the project was carefully considered and the finish is excellent. I'd use them again without hesitation."
Read full review"Top-class service. Friendly team and a fair price."
"Top-class service. Friendly team and a fair price. They were upfront about everything, no hidden surprises and the work was completed to a very high standard. Already recommended them to a neighbour."
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We install the complete system. Outdoor unit, hot water cylinder replacement, pipework alterations, thermostat and controls, then full commissioning. You deal with one contractor from survey through to handover.
Every installation is carried out by SEAI registered installers. The system is commissioned and tested before we hand it over, and we walk you through how to run it so it stays efficient.
BuildTech follows a clear four-step pathway, from initial feasibility through to completed construction, designed to protect your budget and keep your project on track.
We are SEAI registered for heat pump installation. We assess your home’s suitability, prepare and submit the grant application, and install the full system in house, which means one contractor from assessment to handover.
We do not install heat pumps in homes that are not ready for one. If your heat loss is too high for the system to run efficiently, we will say so and advise on what needs to happen first.
The heat pump grant increased in February 2026 and is now worth up to €12,500 for a house. We handle the application from the first eligibility check through to drawdown.
The €12,500 is a bundle of three grants. Up to €6,500 for the heat pump system itself, up to €2,000 towards central heating upgrades such as new radiators or underfloor heating where they are needed, and a €4,000 Renewable Heat Bonus for homeowners replacing an oil, gas, solid fuel or electric storage heating system. Apartments qualify for up to €9,500.
Your home needs an MPRN and must have been built and occupied before 2021. Owner occupiers, landlords, companies, holiday homes and approved housing bodies are all eligible
If your home was built before 2007, a technical assessment is required unless you already hold a valid BER showing a Heat Loss Indicator of 2.3 W/(K.m²) or less. Homes built from 2007 onwards do not need one. A €200 grant is available towards the assessment.
We prepare and submit the application. Grant approval must be in place before any work starts, and works that begin early cannot be grant aided. You have 30 days to accept the offer and eight months to complete the works.
A post works BER assessment is required before the grant is paid, and a €50 grant is available towards it. We complete the paperwork with you and provide engineer certification on completion
Most disappointment with heat pumps traces back to a small number of avoidable issues. These are the ones we see most often in Dublin homes.
A heat pump runs at a lower flow temperature than a boiler. In a home that loses heat quickly it cannot keep up, and running costs rise instead of falling.
Existing radiators are sized for hot boiler water. At heat pump flow temperatures some rooms need larger radiators, which the €2,000 central heating grant now helps to cover
A unit specified without a proper heat loss calculation will either short cycle or struggle in cold weather. The survey exists to prevent exactly this.
A heat pump switched on and off like a boiler will cost more to run. We hand over with operating guidance so the system is used the way it was designed.
Heat loss, suitability and budget confirmed before any design work starts
Measured survey, system sizing, cylinder and radiator design
SEAI application prepared and submitted, approval secured before work begins
Fitted, tested and handed over by SEAI registered installers
We confirm suitability as part of every feasibility consultation, before any money is committed to design or equipment. If insulation upgrades are needed first, we will tell you clearly.
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We review your enquiry before confirming a consultation — ensuring only suitable projects proceed.
What's Included
Related Services
Not sure where to start?
A feasibility consultation (€200 call · €500 home visit) confirms your planning position before you spend anything on drawings.
BuildTech is a specialist design and build contractor. We take on a focused range of projects — and we do not progress any project without a clear, agreed budget.
The most common home project in Dublin. Open-plan kitchen and living, utility room, or additional family space — from feasibility through to a certified, compliant build.
Whole-home renovations and structural alterations for Dublin homeowners. Internal reconfigurations, layout redesign, and full refurbishment — all budget-led from day one.
€200 call or €500 home visit. We establish what is realistically achievable within your budget before any design work begins — saving you time, money, and stress.
Full application management — pre-planning strategy, drawings, submission, and decision monitoring. Many extensions are planning exempt; we confirm this first.
Cost Planning & Construction Review from €2,500 + VAT. We provide a full cost breakdown of your existing drawings — gap identification, budget alignment, and value engineering.
Measured survey, technical layout, and a detailed cost plan — all aligned to your budget before construction begins. No over-specified designs that cannot be built within your means.
Each project below started with a feasibility consultation and a clear budget. Here is what we delivered.
Extension + Renovation
Location : Dublin
Scope : Ground floor knock-through, rear extension, open-plan kitchen and living
Status : Planning exempt
✓ Delivered on time and on budget
Extension + Renovation
Scope : Full home renovation of period seafront property
Status : Planning exempt
✓ Full project management, completed on programme
Extension + Renovation
Location : Dublin 14
Scope : Single-storey rear extension and partial ground-floor renovation
Status : Planning exempt
✓ On budget, handover on schedule
Extension + Renovation
Location : Mount Merrion, South Dublin
Scope : 20 sqm flat-roof rear extension, open-plan kitchen and dining
Status : Planning exempt
✓ Completed on time and on budget
Extension + Renovation
Location : Dublin
Scope : Structural reconfiguration, split-level open-plan kitchen and lounge
Status : Planning exempt
✓ Full project management included
We confirm your total cost and what grant support you qualify for before any work begins.
No obligation. No pressure. Just honest advice.