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Ventilation Renovation
We want to offer our customers suitable ventilation solutions to achieve healthy indoor air.
We provide expert service for building a new ventilation system and upgrading an existing one. Together, we'll find the best possible solution for your home. If needed, we also offer ventilation cleaning and ventilation unit replacement.
Our ventilation renovation is exceptional for a reason: we provide a 5-year installation warranty and a comprehensive solution that takes the house and its residents into account—improving indoor air quality as a whole.
The most common signs of inadequate ventilation

After sauna or bathing, moisture remains in wet rooms for hours
Laundry dries slowly
Cooking odours spread throughout the home
Stale, "old" indoor air
When you come home, the air feels stuffy
You need to open a window or door to ventilate
Comparing ventilation renovation options
A typical basic ventilation renovation (common in the industry)
A common baseline solution in the industry where existing mechanical or natural exhaust ventilation is boosted. This requires that the home already has an exhaust system in place.
- -4–6 wall-mounted heat recovery units for a ~120 m² house (units reverse direction every 1–2 minutes)
- -The old mechanical/natural exhaust system remains in use and does not recover heat
- -Replacement air often enters through the structures (no controlled supply air)
- -Installation time: 1–2 days
A lighter ventilation renovation – ventilation improvement
Your current system is carefully assessed and improved: we ensure sufficient replacement air and guide airflows so that air changes correctly in every room.
- -The existing mechanical/natural system is assessed and measured
- -Replacement air is solved in a more controlled way (improving make-up air routes)
- -Ensures sufficient air in each room and correct exhaust removal
- -Does not recover all heat from the exhaust air
- -Safe, quiet, and reliable
- -Controlled whole-house ventilation year after year
- -Basic filtration options
- -Long service life (with minor repairs, up to 50 years)
- -Installation time: 1–3 days
An exceptionally good ventilation renovation
A centralized mechanical supply-and-exhaust system with heat recovery that keeps ventilation even and controlled throughout the year.
- -Virtually silent
- -One heat recovery unit with two fans
- -Safe, quiet, and reliable
- -Long service life (ductwork technical lifespan up to 50 years)
- -Fresh supply air without draughts—even in freezing temperatures
- -Efficient filtration options
- -Controlled whole-house ventilation year after year
- -Option to connect to geothermal heating
- -Installation time: 2–7 days
Benefits of a ventilation renovation
- -Healthier, fresher indoor air in your home
- -More fresh air with lower energy use
- -Deeper sleep and better focus when working from home
- -No feeling of draught
- -Balanced ventilation even in winter
Benefits of replacing the ventilation unit
- -More fresh air with lower energy use
- -Up to 20–40% lower heating electricity costs
- -Easier everyday life with an automatically controlled unit
- -Significantly quieter and more reliable
- -Buying a new unit is a smarter choice than repairing a ventilation unit that is over 15 years old
Why choose us?
- -The most energy-efficient and quietest ventilation systems on the market
- -We are genuinely interested in your home's ventilation
- -We provide a 5-year installation warranty
- -Turnkey installation
- -Fixed price
- -Written quote
- -We are a Finnish company
- -Fast delivery
How to proceed with a ventilation renovation?
In ventilation renovation planning, it is essential to understand the current ventilation situation, the building structure, and the real ventilation needs.
First, we assess the current state of the ventilation so we can ensure we implement a renovation tailored specifically to your home.
Contact us and you'll receive a quote for a ventilation renovation. With us, you get reliable quality and careful service!
Our ventilation renovation process
Condition assessment
We examine the current ventilation system status and needs. The home is considered as a whole.
Creating the plan and quote
We create a plan (unofficial), based on which we prepare the quote.
Reviewing the quote
We go through the quote together either on-site or remotely.
Agreeing on next steps
We can shake hands and place orders, or decide not to proceed.
Renovation start
At the agreed time, we begin the work and go through the necessary details at the start.
Renovation complete
Once finished, we guide you on using the ventilation unit and review the completed work together. Finally, we fill out the final work report.
Enjoying everyday life
This is where a new chapter begins: a fresh, clean home—energy-efficiently and sustainably.
From a natural ventilation system to a centralized heat recovery system
Heat recovery = HRV (Heat Recovery Ventilation)

The photo was taken in a 1960s detached house in Vantaa
The homeowner was doing a comprehensive interior renovation, modernizing the house to meet 2020s standards.
We installed a centralized mechanical supply-and-exhaust ventilation system with heat recovery, which improved the supply of fresh, clean indoor air and increased the home's energy efficiency by using the already warmed indoor air to heat incoming fresh air—at an efficiency of even over 80%.
The ventilation unit was supplied by Swegon.

We install the most energy-efficient and quietest ventilation systems on the market in your home!
Our customers trust us
Satisfied customers are our best reference
