If you’re building a new home or upgrading an existing one, you’ve probably come across the idea of installing a ventilation system. With Ireland’s focus on energy efficiency and better air quality in homes, systems like MVHR (Mechanical Ventilation with Heat Recovery) are growing in popularity. But how much do they actually cost?

In this guide, we’ll break down the real costs of home ventilation systems in Ireland, what influences those costs, and what you can expect depending on your home type and system choice.

Why Invest in a Home Ventilation System?

Homes built today are far more airtight than older ones. While that’s great for energy efficiency, it often means poor airflow and stale air indoors—unless you add proper ventilation.

Mechanical ventilation systems solve this by:

• Continuously removing stale, humid air from rooms like kitchens and bathrooms

   

• Supplying filtered, fresh air to living spaces and bedrooms

   

• Recovering heat from outgoing air to warm the incoming air

   

This improves comfort, reduces energy waste, and prevents mould and moisture build-up—common issues in Irish homes.

Average Cost of Home Ventilation Systems in Ireland (2025)

The cost of a home ventilation system in Ireland varies based on the type of system you install and the specifics of your home. Here’s a general guide:

These costs typically cover design, supply, installation, and commissioning.

Detailed Breakdown of MVHR Costs

If you’re considering an MVHR system—which is the most efficient and popular choice for energy-conscious homes—here’s how the typical costs break down:

1. System Design

A proper ventilation layout must be designed to suit your home’s structure and air requirements.

Cost: €400 – €600
Some installers include this in the overall quote, so it’s worth checking.

2. MVHR Unit

The core of your system—the unit itself—varies in price depending on the size of your home and the brand you choose.

Cost Range: €2,000 – €4,000
Top-tier brands like Genvex or Zehnder can push this to €5,000 or more, but they offer excellent efficiency and quieter performance.

3. Ducting and Components

Quality ducting is essential for low noise and consistent airflow.

Cost: €2,500 – €4,000
This includes silencers, distribution boxes, and antibacterial/antistatic ductwork where required.

4. Installation

Professional installation ensures the system performs as intended. Costs can vary depending on your home’s layout.

Cost: €2,000 – €3,500
Labour tends to be higher in retrofits than in new builds due to extra work routing ducts.

5. Commissioning & Certification

Once installed, the system must be tested to meet ventilation standards.

Cost: €350 – €450
This includes balancing airflow and providing certificates for building regulations compliance.

What Drives the Cost?

Several factors influence how much you’ll pay for a ventilation system:

Home Size and Layout

More rooms and floors mean more ducting and a larger system. Open-plan homes may cost less to ventilate evenly compared to multi-room layouts.

New Build vs Retrofit

It’s more cost-effective to install during a new build. Retrofitting often requires clever routing and concealment, which adds time and labour.

System Features

• Smart controls for remote access
• Humidity and CO2 sensors
• HEPA filtration for allergies

While optional, these features increase cost but improve comfort and air quality.

Brand and Efficiency

Cheaper units may save money upfront, but higher-end brands often run quieter, last longer, and are more efficient.

How to Save Money Without Cutting Corners

Here are practical tips for keeping costs under control while still getting a solid system:

Plan Early

If you’re building or extending, include ventilation in your plans from day one. Early planning avoids costly retrofits and makes duct routing easier.

Get Multiple Quotes

Prices can vary widely, so get at least two or three quotes. Make sure each includes supply, installation, and commissioning.

Choose the Right Size System

Bigger isn’t always better. Oversizing a unit increases costs and may reduce efficiency. Work with a supplier who’ll match the unit to your home’s actual airflow needs.

Maintain It Well

Change filters regularly and have your system checked annually. Well-maintained units work better and last longer, saving you money over time.

Long-Term Value and Energy Savings

While the upfront investment can seem high, an MVHR system can reduce heating bills by up to 30% by recovering heat from the outgoing air. Over a few years, the savings begin to offset the cost.

More importantly, you get:

• Consistent fresh air
• Protection from damp, mould, and allergens
• Increased home comfort and resale value

Final Thoughts

For most homeowners in Ireland, especially those building energy-efficient homes, an MVHR or HRV system is well worth the investment. While the upfront costs may seem steep, the combination of comfort, savings, and indoor air quality is hard to beat.

If you’re serious about reducing heating bills, avoiding mould, and creating a healthier living environment, a home ventilation system should be high on your list.

OSBER is a trusted name when it comes to energy-efficient upgrades in Ireland. With a strong focus on ventilation solutions alongside insulation services, we help homeowners across Dublin, Kildare, Meath, and Wicklow enhance comfort and cut energy costs. If you’re looking for expert advice or support in applying for SEAI grants, get in touch with us today to start your journey towards a healthier, more efficient home.