Ireland's Heat Pump Performance Consultancy

Heat Pump Engineering
Reimagined

Specialist heat pump servicing, diagnostics and optimisation for Irish homes. GreenWave identifies comfort issues, poor efficiency, control problems and system faults using an evidence-led engineering approach.

Your heat pump may be working harder than it needs to. GreenWave identifies what can be checked, improved and verified by an engineer.

Start Free Heat Pump Check → Book a Service Visit
Evidence-led  ·  Engineer-led  ·  No guesswork  ·  085 248 6159  ·  CRO 811710  ·  Ireland
FreeOnline health check
no obligation
3 minTo complete your
assessment
All brandsSamsung, Daikin,
Mitsubishi, LG & more
NationwideEngineer visits across
all Irish counties
Get started

What do you need help with?

Select the option that fits — the assessment adapts to match your situation with no unnecessary questions.

⚠️
My system has a fault
Fault code showing, no heat, no hot water, or system not responding
Start Fault Check →
🔧
I want an annual service
Routine maintenance to keep your system in good condition and warranty compliant
Book Annual Service →
⚡
My bills seem high
High electricity usage, cold rooms, or the system is not running as well as it should
Start Performance Review →
📐
I want my system optimised
Settings, weather compensation, flow temperatures and controls reviewed and corrected
Book Optimisation Visit →
💬
I am not sure
Tell us what is happening and GreenWave will advise the right next step
Start Free Health Check →
Is your heat pump doing any of this?

Most heat pump problems are not solved by guessing.

🌡️  Rooms not reaching temperature
⚡  Higher electricity usage than expected
🚿  Hot water running out or not getting hot enough
⏱️  System running all day without reaching setpoint
🔄  Frequent cycling — turning on and off every few minutes
🔊  Outdoor unit making unusual noise
⚠️  Fault codes appearing on the controller
❓  Installer settings never properly explained
🛠️  Unsure if the system was commissioned correctly

A heat pump configured without heat pump-specific knowledge can cost 40–60% more to run than a correctly set up system. The settings are different, the logic is different, and getting it wrong shows up on your electricity bill every month.

Weather compensation, heating curve gradient, flow temperature, DHW scheduling, minimum run-time — these are not boiler concepts. They require specific heat pump engineering knowledge to set correctly.

Most heat pump problems need measured readings, controller review, hydraulic checks and correct system setup — not guessing. GreenWave uses a structured engineering approach before making any recommendation.

Start Free Assessment →
GreenWave Health Indicators

Your heat pump assessed across four areas.

Instead of a single score, GreenWave uses four traffic light indicators — each showing whether that area of your system needs attention. Preliminary indicators are based on your answers. Final assessment is confirmed by a GreenWave engineer on site.

🏠
Comfort
Good
Monitor
Needs Attention

Is the home heating correctly? Are all rooms reaching temperature?

⚡
Efficiency
Good
Monitor
Needs Attention

Is the system likely working harder than needed? Are running costs in line?

🎛️
Controls
Good
Monitor
Needs Attention

Are settings, schedules and weather compensation likely correct?

🔍
System Condition
Good
Monitor
Needs Attention

Signs of servicing, flow, pressure or fault issues that need an engineer.

These are preliminary homeowner indicators. The full GreenWave engineer assessment is based on measured site readings.
After your assessment

What you receive after completing the Health Check.

1
Four preliminary health indicatorsComfort, Efficiency, Controls and System Condition — each rated Good, Monitor or Needs Attention based on your answers.
2
A clear recommendationWhether you need a service, diagnostic visit, optimisation, or no action right now — explained in plain language.
3
Your GreenWave case referenceA unique reference number that stays with your case. Use it to return to your results or discuss your system with our team.
4
Option to upload system photosPhotos of the outdoor unit, cylinder, controller and pipework help the engineer prepare properly before any visit.
5
A booking or quote pathwayBased on your issue type, GreenWave can issue a fixed-price quote directly to your portal — no phone call required.
6
My Results portal accessYour personal GreenWave portal showing your case status, issued quote, and booking options — accessible any time via your reference token.
The online check helps us understand the symptoms. Final recommendations are confirmed by an engineer using site readings.
Why GreenWave

Not just a service. An engineering assessment.

📊
Evidence-led checks
We use system readings, controller information, photos, fault history and site observations before making any recommendation.
🔥
Heat pump specialists
GreenWave focuses on heat pumps — not general plumbing. Our engineers are trained specifically in heat pump performance and manufacturer specifications.
📋
Engineer reports
Where required, we provide clear findings, recommendations and next steps — not vague advice.
🎛️
Settings, controls and performance
We review weather compensation, flow temperatures, DHW settings, schedules, pressure, flow and system behaviour — the parts that most affect comfort and cost.
✅
No guesswork
Recommendations are based on what can be observed, measured and verified. We do not make assumptions or apply boiler logic to heat pump problems.
💰
Fixed prices. No surprises.
The price you see is the price you pay. No call-out fees, no hidden extras. Every service includes a written report. Prices shown before you commit to anything.
How GreenWave works

A controlled process from first contact to final recommendation.

1
Tell us what is happeningComplete the free Heat Pump Check and upload photos of your outdoor unit, cylinder and controller if available. This takes about 3 minutes.
2
We review the symptomsYour answers help GreenWave understand the likely issue before any visit. A trained engineer reviews your case and your preliminary health indicators are generated.
3
You receive a recommendation and quoteGreenWave identifies the most appropriate service — service, diagnostic, optimisation or no action — and can issue a fixed-price quote directly to your portal.
4
Engineer visitOur engineer arrives prepared — with your system details, photos, symptoms and preliminary findings already reviewed. The visit starts informed, not cold.
5
Clear findingsYou receive practical findings and recommendations — not vague advice. Where settings can be improved safely and appropriately, they are.
Heat pump outdoor unit next to brick house
Modern heat pump installation on lawn
GreenWave heat pump installation — Hisense indoor unit with underfloor heating manifold
Services & pricing

Fixed-price engineer visits. No hidden charges.

All prices include VAT. All visits include a written findings summary. No call-out fees. Prices confirmed before you commit.

GreenWave Flagship
Performance Service
For homeowners who want more than a standard service. Operating readings, controller review, system behaviour analysis, weather compensation check and recommendations.
From €329 inc. VAT
Full system health check and operating readings Weather compensation and heating curve review Controller audit and settings verification DHW scheduling and temperature check Written findings and recommendations
Start Performance Check →
Annual Service
Annual Heat Pump Service
Routine servicing to keep your system in good condition and maintain manufacturer warranty. Includes visual inspection, basic operational checks and homeowner advice.
From €239 inc. VAT
Outdoor unit and filter inspection System pressure and flow check Controller and settings review Written service summary
Book Annual Service →
Fault Diagnostic
Fault Diagnostic Visit
For fault codes, no heat, poor hot water, pressure loss, noise, frequent cycling or unexplained system behaviour. Root cause diagnosis with written findings.
From €179 inc. VAT
Root cause fault diagnosis Controller and error history review Written findings report
Start Fault Check →
Deep Optimisation
Deep Optimisation Visit
For systems with ongoing comfort, efficiency or setup issues requiring deeper investigation. Full settings audit, performance comparison and optimisation where appropriate.
From €449 inc. VAT
Full operating readings before and after Deep controller and settings audit Refrigerant circuit check where required Comprehensive written report
Book Optimisation →
Not sure which service you need? Complete the free assessment → and GreenWave will recommend the right option.
What homeowners say

GreenWave customers across Ireland.

★★★★★
Our Samsung heat pump had been running for two years and our bills were much higher than we expected. The GreenWave engineer found our weather compensation had never been set up. The difference in running costs has been noticeable since the visit.
SM
S. Murphy
Dublin — Celbridge, Co. Kildare
Performance Service
★★★★★
We had a fault code coming up on and off for months and the installer couldn't explain it. GreenWave diagnosed it within the first hour and gave us a clear written explanation of what was wrong and what was done to fix it. Exactly what we needed.
PO
P. O'Brien
Cork — Ballincollig, Co. Cork
Fault Diagnostic
★★★★★
The online health check before the visit was a great idea. By the time the engineer arrived he already knew our system, the issues we'd reported and what to look at first. It felt like a proper professional service — not just someone turning up with a spanner.
AC
A. Connolly
Galway — Salthill, Co. Galway
Annual Service
These are placeholder testimonials — replace with real customer reviews when you receive them. Each card has a comment above it showing which one to update.
⬡GreenWave Connect

Monitor your heat pump between engineer visits.

GreenWave Connect gives you a simple monitoring dashboard for your home heat pump — tracking system status, flagging unusual behaviour and alerting you before small issues become expensive ones.

System status monitoring between engineer visits
Early alerts for unusual system behaviour
Linked to your GreenWave case history
Direct engineer contact when something needs attention
Learn About GreenWave Connect →
GREENWAVE CONNECT — LIVE STATUS
Heating Circuit
Hot Water System
Weather Compensation
System Pressure
Fault Codes
Monitoring active · Last checked just now
Frequently asked questions

Common questions about GreenWave and heat pump servicing.

Do I need a service if my heat pump is still working?▾
Yes. A working heat pump can still be poorly set up, inefficient, overdue maintenance, or masking early faults. Many heat pumps in Ireland are running correctly in a basic sense but consuming significantly more electricity than they should because settings like weather compensation and heating curve gradients have never been correctly configured. Annual servicing is also required by most manufacturers as a condition of warranty.
Can GreenWave guarantee lower bills?▾
No. Bills depend on weather, insulation, usage, electricity tariffs and system design. GreenWave identifies where your system may be working harder than necessary and what can be improved — but we do not make savings promises. Our approach is evidence-led: recommendations are based on what can be measured and verified on site, not estimates.
What is the difference between a service and an optimisation?▾
A service checks condition and operation — pressure, filters, outdoor unit, basic settings and operational verification. Optimisation goes deeper: operating readings, weather compensation curves, heating curve gradient, flow temperatures, DHW scheduling, minimum run-time, system behaviour and before/after performance comparison. GreenWave's Performance Service combines both into a single visit.
Do you work on all brands?▾
GreenWave works with all major heat pump brands installed in Ireland: Samsung, Daikin, Mitsubishi, LG, Hitachi, Vaillant, NIBE, Grant, Panasonic, and Hisense. Our engineer workflow includes manufacturer-specific controller navigation and settings guidance for each brand, so the visit is always tailored to your specific system.
Should I upload photos with my assessment?▾
Yes — photos help significantly. Photos of the outdoor unit, cylinder, controller, pipework, pressure gauge and any fault codes displayed help the engineer identify potential issues before arriving. A GreenWave engineer who arrives prepared can use the visit time more effectively than one starting from scratch on site.
How do I access my results after completing the assessment?▾
After completing the assessment, you are taken to your personal GreenWave portal — a results page showing your four health indicators, your case reference number, and any quote or recommendation issued by GreenWave. You can return to this page at any time using your reference token. Click "My Results" in the navigation at any time to look up your case.
What is weather compensation and why does it matter?▾
Weather compensation automatically adjusts the flow temperature of your heat pump based on outdoor temperature — warmer water on cold days, cooler water on mild days. Heat pumps produce heat far more cheaply at lower temperatures, so correctly configured weather compensation reduces running costs substantially. Many Irish heat pumps are installed without weather compensation properly active, which is one of the most common causes of high electricity bills.
Will I get a report?▾
All GreenWave visits include written findings. Performance Service and Deep Optimisation visits include a more detailed written summary covering operating readings, settings reviewed, any changes made, and recommendations. Fault Diagnostic visits include a written root cause summary. Annual Service visits include a written service record.
See all frequently asked questions →

GreenWave is the specialist company homeowners call when they want their heat pump properly understood.

Free online health check. Takes 3 minutes. No obligation. Your results are ready immediately.

Start Free Heat Pump Check →
No account required · No payment · No obligation · Engineer-led · Evidence-based