★ 54 five-star reviews
References and customer reviews
Our references range from private homes to housing companies, from restaurants to laboratories, and from day-care centers to offices. Below you’ll find our customers’ reviews and examples of completed projects - you can filter them by year, service type, or location.
Why choose IVAeris?
We are not a large organization with a hundred technicians ready to go. We are a small, selective team. We don’t take on every job, because then we couldn’t maintain our quality. But when we do take a job, we do it properly.
Often we are called in only after others have already given up. Then we don’t just solve the problem—we make sure the system works in the long term. If you want work that is done carefully, takes the time it needs, and is based on an honest analysis of what is wrong and how it should be fixed, we are the right partner. What matters most to us is that the end result works and that you can rely on it for years to come.
Completed projects
Browse our references: choose the year of completion, service, or location. Each project tells a story—not only about how we improved indoor air quality and energy efficiency, but also how we did it and how customers have been satisfied.
What our customers say
★★★★★
“I received excellent advice and help with my problem quickly. Customer service was truly knowledgeable and friendly, genuinely trying to find real help in a problem situation.”
— Mikko R.
“They contacted me immediately when I reached out and came to look at my problem on site! Other ventilation companies didn’t even respond to me. We received a quote and the price held even though the job was demanding and grew as the project progressed. When the work was done excellently, we also received a final report that is very comprehensive.”
— Arto A-W.
“We were left with a very good and high-quality impression of your work. I am especially happy with your communication, which is exceptionally good compared to most operators in a housing company environment. We knew at all times where things stood and what would happen next.”
— Jari H.
“They don’t fear challenges, but see them as a source of extra motivation. Strong recommendation!”
— Nemanja S.
“Good and professional service, the work went well and quickly on schedule!”
— Tuija
Puhdistus

2021
Helsinki
At a property in Helsinki, we carried out a thorough cleaning of the heat-recovery (LTO) system. Our work included cleaning the LTO unit and the ductwork. We also carried out the measurements and adjustments to ensure the system runs optimally. Regular cleaning and service of an LTO system is important for energy efficiency and reliable operation.
Asennus

2021
Espoo
In 2021 we carried out a project to improve the operation of the exhaust ventilation system. We found that the system did not have enough make-up air, which can cause a feeling of draught and unbalanced pressures. As a solution, we installed several Velco make-up air valves, which ensure an adequate make-up air supply and improve the pressure balance and living comfort.
Puhdistus

2021
Nurmijärvi
We carried out a thorough cleaning of the ventilation system, including the ductwork and the air handling unit. It is worth remembering that even a working, efficient ventilation system collects dust and impurities, so regular cleaning matters for the system's performance and for restoring the designed airflows.
Asennus, Neuvonta

2021
Helsinki
During a complete renovation of a restaurant at Mariankatu 10 in Helsinki, we renewed and upgraded the entire ventilation system. In the dining hall we installed a heat-recovery (LTO) unit for comfortable indoor conditions. In the kitchen we redesigned the ductwork, removed the old ducts and installed a new, efficient roof fan. This ensures excellent ventilation and a pleasant working environment going forward.
Asennus, Puhdistus

2021
Espoo
At the customer's request, we replaced the old air handling unit with a new one. Before a replacement we always recommend cleaning the ductwork, so the new unit is installed in a clean system. After the replacement we carried out the measurements and balancing to ensure the new system runs optimally.
Puhdistus















