VENTILATION SPECIALISTS · CORK
Ventilation design, commissioning and validation. Built around your home.
Ventilation designs by a qualified Mechanical Engineer.
NSAI-registered Ventilation Validator
01 / OUR SERVICES
From a considered design to measured airflow and a clear record of performance.
All ventilation designs are completed by a qualified Mechanical Engineer. Plan the airflow before the installation. A considered layout brings the system, duct routes and room requirements together.
Check what your installed system is actually delivering. Measure, adjust and balance the airflow, with a clear record of the results.
Verify the installed system against the project requirements. Identify shortfalls and document the findings clearly.
02 / WHY VENTILATION MATTERS
Insulation keeps heat in. Ventilation gives moisture and stale air a way out.
Everyday cooking, showers and drying clothes release moisture. A planned ventilation system helps remove it, while bringing outdoor air into the rooms you live in.
Help control humidity and reduce condensation risk.
Dilute indoor pollutants and remove everyday odours.
Plan air movement, noise and heat loss together.
Know what reaches each room through measured airflow.
Ventilation is only part of the picture. Persistent damp or mould can also involve leaks, cold surfaces or building defects that need investigation.
03 / KNOW YOUR OPTIONS
Airtightness, layout, access and budget all matter. Here are the benefits and the trade-offs.
HEAT RECOVERY
Mechanical ventilation with heat recovery
Supplies filtered outdoor air to living rooms and bedrooms, and extracts from wet rooms. A heat exchanger transfers heat from outgoing air to the incoming supply.
Controlled supply and extract, filtration and reduced ventilation heat loss.
More ductwork, higher initial cost and space for an accessible unit. Filters need regular attention; performance depends on airtightness and commissioning.
Worth considering: airtight new builds and deep retrofits with space for supply and extract ducts.
CONTINUOUS EXTRACTION
Mechanical extract ventilation
Continuously removes air from kitchens, bathrooms and utility rooms. Replacement air enters through designed background air inlets.
No separate supply duct network. Centralised or decentralised arrangements can suit different layouts.
No heat recovery from extracted air. Air inlets and room-to-room transfer paths are essential and need careful positioning for comfort.
Worth considering: homes where full MVHR duct routes are difficult or the upgrade scope is limited.
RESPONDS TO DEMAND
Demand-controlled ventilation
Uses controls or sensors to vary ventilation with demand, such as humidity or occupancy. DCV describes a control approach, rather than one fixed system layout.
Can adapt airflow as the needs of the home change, limiting unnecessary ventilation when demand is lower.
Sensors, air inlets and controls must work as a complete system. Heat recovery is not implied by the DCV label.
Worth considering: projects where responsive airflow suits the proposed ventilation strategy.
A starting point for your project: SEAI’s guide to ventilation systems ↗
04 / NEW BUILD & RETROFIT
The easiest time to solve a duct route is while it is still a line on a drawing.
Coordinate the unit, ducts and ceiling terminals with the structure, insulation and other services. Allow access for filter changes and future maintenance.
New windows and airtightness work change how a home breathes. Review ventilation alongside those upgrades, rather than waiting for condensation to appear.
05 / DETAILS THAT MATTER
A fan running does not prove that each room is receiving the airflow it needs.
Measure airflow at terminals, adjust the system and balance it against the design. Record the settings and explain operation at handover.
Review and verify the installation against the agreed requirements. Confirm the required documentation and any independence requirements before the visit.
Crushed ducts, excessive bends, blocked inlets, missing transfer paths and inaccessible filters can undermine a good design. Restricting terminals to hide noise can leave rooms under-ventilated.
06 / HOW CARROLL TECHNICAL WORKS
Practical advice. Careful attention to detail. A straightforward conversation about what your project needs.
Tell us where you’re building, what stage you’re at and whether you need design, commissioning or validation.
We’ll review your plans or system details, then agree the work, timing and fee with you.
Receive the design information, commissioning record or validation findings you need to move your project forward.
QUALIFICATIONS & TRAINING
All ventilation designs are completed by a qualified Mechanical Engineer, supported by training in Nearly Zero Energy Building (NZEB) principles and ventilation.
NSAI-registered Ventilation Validator. Independent validation of ventilation system performance against the design requirements.
07 / YOUR QUESTIONS
No. It depends on airtightness, layout, duct routes, budget and the work planned. An assessment can establish whether heat recovery or an extract-based strategy is appropriate.
It can help when excess indoor moisture and inadequate air exchange are contributing. It will not repair a leaking roof or eliminate a cold bridge. Persistent problems need their causes investigated.
Yes. Mechanical ventilation does not prevent you opening windows. A whole-home system is intended to provide planned background ventilation without relying on repeated window opening.
It recovers some heat that would otherwise leave with extracted air. It is not a replacement for your heating system or air conditioning. A summer bypass does not provide active cooling.
Follow the manufacturer’s schedule. Depending on the system, this includes inspecting or changing filters, keeping terminals and inlets clear, and checking the unit and controls. Do not change balanced terminal settings while cleaning.
When installation is complete and the home is ready for representative measurements. Share the drawings, system details and project programme beforehand so readiness and the required records can be agreed.
The fee depends on the property, system, location and scope. Send your plans or system details for a project-specific quotation before booking.
Our advertised services focus on ventilation design, commissioning and validation. Let us know what your project needs so responsibilities and the installer’s scope can be agreed clearly.
08 / LET’S TALK
Planning a new home, reviewing an existing system or ready for commissioning? Tell us about your project.
Include your location, project stage and any plans or system details you have.
Email Based in Cork, Ireland