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Air ventilation consulting and design
Air ventilation consulting gives you an HVAC engineer’s assessment quickly and clearly—remotely or on site. We help you make the right decisions in air ventilation matters: we assess the existing system, advise on renovations, and design new systems using professional design software. We serve Helsinki, Espoo, Vantaa, and throughout Uusimaa.
When is air ventilation consulting worth it?
Air ventilation consulting saves time, money, and nerves—especially when you’re not sure how to proceed. The most typical situations where our customers benefit from consulting:
You have received a quote or a maintenance report related to air ventilation in a housing company or a detached house, but you don’t know whether it makes sense. You are planning a renovation and want to know how it will affect air ventilation—or whether the whole system should be replaced at the same time. There are indoor air issues, but you don’t know whether they are caused by air ventilation, structures, or something else. A property manager or board needs an expert assessment before an investment decision. A construction project requires air ventilation plans or a responsible site supervisor for air ventilation works.
The value of consulting is that you get an impartial, expert view before making expensive decisions. An air ventilation renovation or replacing a unit can cost thousands of euros—proper consulting before the decision easily pays for itself.
Remote consulting – expert help quickly and affordably
The fastest and most affordable way to get an HVAC engineer’s assessment is remote consulting. In a one-hour video meeting, we go through your situation, answer your questions, and provide concrete recommendations for next steps. Remote consulting is especially suitable when you want an expert opinion without an on-site visit—for example, comparing quotes, interpreting maintenance reports, or general advice on how the air ventilation system works.
Remote consulting is available from €118, and you can book an appointment directly at the bottom of this page. If the situation requires a more extensive investigation or on-site work, we will direct you to the right service—for example, air ventilation inspection and measurement or technical consulting.
Technical consulting – a more in-depth expert assessment
When the situation requires more thorough analysis, technical consulting is the right choice. In this service, our HVAC engineer comes on site or reviews the property based on documents and provides a comprehensive assessment of the system’s condition, issues, and solution options.
Technical consulting is especially suitable for housing companies considering an air ventilation renovation or those with long-standing indoor air problems. In the consultation, we assess the current state of the system, compare renovation options, and present a recommendation based on technical analysis—not guesswork. The report serves directly as a decision-making basis for the board or the general meeting of shareholders.
Technical consulting is also a valuable tool before air ventilation installation or renovation: when the plan is sound before execution, costly mistakes and change orders are avoided. The price of technical consulting is €480.
Air ventilation system design
When building new or renovating an old property, air ventilation design is the foundation for everything else. A well-designed system ensures healthy indoor air, energy efficiency, and preservation of the property’s value—poor design can cause problems for decades.
At IVAeris, we design air ventilation systems using professional CAD and BIM design software. The plans cover duct sizing, unit selection, terminal devices, sound levels, and energy calculations. Every plan is prepared in accordance with building regulations and good building practice.
Air ventilation design is suitable for new builds, extensions, changes of use, and renovation projects where the existing system is replaced entirely with a new one. In smaller sites, such as detached houses, a plan alone is often sufficient as the basis for implementation. In larger projects, we combine design with project coordination, where we also supervise the quality of execution. Air ventilation design starts from €1,680.
Responsible site supervisor for air ventilation works and KVV works
A building permit often requires appointing a responsible site supervisor for air ventilation works to the project. The responsible site supervisor for air ventilation works ensures that the air ventilation works are carried out according to the plans, meet the authorities’ requirements, and pass the required inspections. This is a statutory role that is necessary for permit-required air ventilation works.
At IVAeris, we provide both a responsible site supervisor for air ventilation works and a responsible site supervisor for KVV works (property water and drainage works). Our supervisor handles applying for authority approval, coordinating inspections, and final verification that the work has been done correctly. You get authority liaison and professional supervision from one place.
The price of the site supervisor service is €4,725 and it covers the entire project duration. It is worth clarifying the need for a site supervisor at the very beginning of the project—we are happy to help assess whether you need a site supervisor or whether lighter consulting or an inspection is sufficient.
Prices for our consulting and design services
All of our consulting and design services are priced at a fixed rate. The fastest way to get an expert assessment is remote consulting from €118. Technical consulting on site or document-based is €480. Air ventilation system design starts from €1,680, and site supervisor services from €4,725.
Choosing the right service depends on your situation: if you need a quick answer to a single question, remote consulting is enough. If a housing company is considering an investment, technical consulting provides the basis for decision-making. If you are building or renovating, you need design and possibly a site supervisor.
Below you will find all of our consulting and design service prices and can book directly.
Fixed-price consulting services
1 hr
480 euros
Can’t find what you’re looking for?
If you’re not sure which service is right for your situation, contact us—we’ll help you get started. Often the best first step is an affordable remote consultation, where we work out together what you need. You can also explore our other services: air ventilation maintenance, air ventilation cleaning, or installation and repairs.





