Dawson Mechanical & Renewables

SEAI & RGI Registered Installers

MVHR Installation Across Dublin, Meath, Kildare & Louth

Improve indoor air quality, cut heating costs and enjoy year round comfort with expertly designed and installed mechanical ventilation and heat recovery (MVHR) systems from industry certified experts.

MVHR Services

Mechanical Ventilation and Heat Recovery Services

Whether you’re building a new energy efficient home with renewable heating, undertaking an extension, or managing a commercial development project, proper mechanical ventilation is a Building Regulations requirement (Part F) and a crucial element of overall building performance. Our experienced team designs, installs, and commissions MVHR systems for residential and commercial properties, ensuring optimal indoor air quality and energy efficiency
for years to come. 

MVHR System Design

We provide professional MVHR system design based on your building layout, occupancy, and ventilation requirements. Our designs comply with current building regulations and energy‑efficiency standards.

MVHR Installation

Our experienced engineers install high‑performance MVHR systems with minimal disruption. We work with leading manufacturers to ensure reliable, quiet, and energy‑efficient operation.

Maintenance & Servicing

Regular MVHR servicing keeps your system running efficiently and hygienically. Our maintenance services include filter replacement, airflow checks, system cleaning, and performance testing.

MVHR Repairs & Fault Finding

If your MVHR system is noisy, inefficient, or not working correctly, we provide fast diagnostics and repairs to restore optimal ventilation and heat recovery.

MVHR Upgrades

We upgrade outdated or inefficient ventilation systems to modern MVHR solutions, improving air quality and reducing energy consumption.

MVHR Replacements

We upgrade outdated or inefficient ventilation systems to modern MVHR solutions, improving air quality and reducing energy consumption.

The Basics

How Does MVHR Work

Mechanical Ventilation with Heat Recovery (MVHR) is a whole house ventilation system that extracts stale, humid air from wet rooms (bathrooms, kitchens, utility rooms) and supplies fresh, filtered air to living areas (bedrooms, living rooms, dining rooms).

01

Stale Air Is Extracted

The unit draws damp, stale air out of your bathrooms, kitchen and utility room, so moisture never gets a chance to build up.

02

Heat Is Recovered

Heat from the outgoing air passes to the fresh air coming in, without the two ever mixing keeping heat in your home. 

03

Fresh Air Is Delivered

Clean, filtered, pre-warmed air flows into your  home, so you get a steady supply of fresh air without the cold draughts.

Benefits

Benefits of A MVHR System

MVHR keeps your home fresh, warm and dry while cutting the heat you lose through ventilation. It’s a simple upgrade that makes an airtight, well-insulated home work as it should.

Fresh Clean Air

A constant supply of filtered fresh air in every room, for better indoor air quality all day and night.

Lower Energy Bills

Recovers up to 95% of the heat that would otherwise be lost so your heating works less.

Dry & Comfortable

Removes moisture before it causes condensation and mould, and keeps your home comfortable all year round.

Our Process

From Survey to Fresh Air in 6 to 9 Weeks

Most of that time is design and planning. The work in your home usually takes just a few days.

Week 1

Phone Consultation

We talk through your home and any problems with condensation, damp or stale air.

Week 2

Home Survey

We check access for ductwork, the best spot for the unit and how airtight your home is.

Week 3-5

Design & Quote

We design the duct layout and airflow for each room and give you a fixed written quote. 

Week 6-8

Installation

The unit, ducting and vents are fitted in 3 to 5 days.

Handover

Test & Handover

We balance the airflow in every room, commission the system and show you how to run it and change the filters.

Our Standards

Why Choose Dawson for MVHR Installation

Anyone can run ducts through an attic. Designing an MVHR system that is balanced, quiet and properly commissioned is what keeps your home fresh, dry and warm is what we delivery.

SEAI Registered

Registered contractor working to current ventilation standards and Building Regulations (Part F).

Room Design

Airflow calculated for every room and ducts laid out to keep noise down, so the system is sized right.

Tested & Balanced

We balance and test the airflow in each room before handover, so your system performs as designed from day one.

Local Team

Based in Kilcloon, Co. Meath. The team that installs your MVHR also services it, including filter changes and service.

Warranty

Covering our workmanship, with the manufacturer’s warranty on the unit.

Our Qualifications

Work With Registered Professionals

Safety and quality come first on every installation. We follow all health and safety regulations, so your ventilation system is compliant, properly commissioned and built to perform. We’re RGI registered, SEAI registered and members of the National Guild of Master Craftsmen, giving you a team you can rely on for MVHR and ventilation installations.

FAQ

MVHR FAQ

Choosing the right mechanical ventilation and heat recovery system can raise a few questions. We’ve answered the most common queries below to help you understand how MVHR works and whether it’s right for your property.

Is MVHR suitable for existing homes?

Yes, while MVHR is ideal for new builds and airtight properties, it can also be retrofitted to existing homes with the right design.

MVHR systems use electricity to run fans, but the heat recovered usually outweighs the running costs, resulting in net energy savings.

A mechanical ventilation and heat recovery (MVHR) system works by extracting warm, stale air from moisture-producing rooms and using a heat exchanger to transfer that heat to fresh incoming air. This process provides continuous ventilation while significantly reducing heat loss and improving energy efficiency.

MVHR systems are very energy efficient and typically have low running costs. While they use electricity to operate the fans, the heat recovered from extracted air often results in overall heating cost savings, especially in well-insulated and airtight buildings.

In many new-build and airtight properties, mechanical ventilation and heat recovery systems help meet current building regulations by ensuring adequate ventilation and energy efficiency. MVHR is commonly used to comply with ventilation and indoor air quality requirements.

MVHR systems improve indoor air quality by continuously filtering incoming air and removing dust, pollen, and airborne pollutants. This can help reduce allergy symptoms and create a healthier indoor environment for occupants with asthma or respiratory sensitivities.

A well-designed and properly maintained MVHR system can last 15 to 25 years. Regular servicing, filter changes, and professional maintenance are key to maximising lifespan and maintaining efficient performance.

Mechanical ventilation and heat recovery systems are designed to operate efficiently all year round. In colder months, they recover heat to reduce heating demand, while in warmer months they help manage fresh airflow without excessive heat gain.

Standard mechanical ventilation extracts stale air but does not recover heat, leading to higher heat loss. Mechanical ventilation and heat recovery systems, however, reuse heat from extracted air, making them far more energy efficient and cost-effective in the long term.

Areas Covered

MVHR Installers Covering Dublin, Meath, Kildare & Louth

Based in Kilcloon, Co. Meath, we install and service MVHR systems across Dublin, Meath, Kildare & Louth, including Navan, Dunboyne, Ratoath, Ashbourne, Dublin 15, Lucan, Swords, Maynooth and Naas. Outside these areas? Depending on the project, we’re happy to travel.

Free MVHR Assessment

Request A Free Mechanical Ventilation and Heat Recovery Consultation

Ready to improve your indoor air quality and energy efficiency? Contact us today to discuss your Mechanical Ventilation and Heat Recovery (MVHR) requirements. Our team will provide expert advice, a tailored design and a competitive quote.