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Ventilation & Airtightness

Healthier, More Efficient Homes Nationwide

Prevent damp, reduce draughts, and meet SEAI retrofit standards.

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SEAI one stop shop

Grants offered are provided by the Government of Ireland through the Sustainable Energy Authority of Ireland (SEAI)

Ventilation & Airtightness Retrofits Nationwide | Retrofit Design Ltd

When upgrading your home, ventilation and airtightness go hand in hand. Improving airtightness reduces draughts and uncontrolled heat loss, while proper ventilation ensures a constant supply of fresh air. Together, they create a healthier, more energy efficient home.

Without effective ventilation, airtight homes can suffer from condensation, mould, and poor indoor air quality. At Retrofit Design Ltd, we provide solutions that balance comfort, efficiency, and air quality – essential for SEAI funded retrofit projects.

Key Benefits for Homeowners

  • Lower energy bills by preventing draughts and heat loss.
  • Cleaner indoor air with fewer allergens, moisture, and pollutants.
  • Stable indoor temperatures for improved comfort year round.
  • Healthier environment by reducing mould and condensation.
  • Longer building lifespan through better moisture control.

 

 

Our Ventilation & Airtightness Services

  1. Airtightness testing – detect leaks, draughts, and weak points.
  2. Sealing and improvement works – close cracks, joints, and penetrations.
  3. Ventilation system design & installation – natural, demand controlled, or Mechanical  Ventilation with Heat Recovery (MVHR). Mechanical ventilation systems provide more control and limit heat loss.
  4. Post installation testing – verify airtightness levels meet SEAI and building regulation standards.

SEAI Grant Information

SEAI one stop shop
  • Ventilation upgrades are included under the SEAI One Stop Shop scheme when part of a deep retrofit.
  • Homes applying for the SEAI Heat Pump Grant must meet airtightness and ventilation standards before installation.
Compare SEAI Grants

FAQs – Ventilation & Airtightness

Why is ventilation important in a retrofit project?
Airtight homes need controlled ventilation to avoid damp, mould, and poor indoor air quality, ensuring comfort and health.
What is airtightness testing?
It measures how much uncontrolled air escapes your home. Results guide improvements to energy efficiency and draught reduction.
Are ventilation upgrades grant aided?

Yes. Ventilation is supported under the SEAI One Stop Shop retrofit scheme, especially for homes with heat pumps.

What types of ventilation systems are available?
Options include natural ventilation, demand‑controlled systems, and MVHR (Mechanical Ventilation with Heat Recovery), which recovers heat from extracted air while supplying fresh air.
SEAI ventilation and airtightness grant Ireland
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Get Started Today

Want a warmer, healthier, and more energy‑efficient home? Contact Retrofit Design Ltd today to arrange a consultation about ventilation and airtightness upgrades in Ireland.

Complete our Enquiry Form

What our Customers Say

“I have to give Retrofit Design and their workers credit, as the communication was excellent throughout the works and works were completed more than I was expecting. They [Retrofit Design] kept me up to- date every day and worked around my needs with my children and pets, and always cleaned up after themselves. I would give them 100% credit for the work and communication”

Ann, Co. Laois

April 2023
“Thanks to Retrofit Design for an amazing job, well done and to their team“
Paul, County Cork
July 2024
“Great works and workers. Everyone very friendly and helpful“
Charlie, Cork City
October 2021