Landscaping and Site Improvement
Fences and Enclosures for Homes and Properties
Building and Structure Demolition
Tree Removal and High-Altitude Work
Lawn and Hedge Maintenance
Welding Services
Mold, Asbestos, and Moss Removal
Roof, Paving Stone, and Brick Cleaning
Plumbing Services
Electrical Installation Services
ONEGA OY – Your Reliable Partner in Landscaping and Home Maintenance
We are a team of professionals providing a full range of services in landscaping, construction, demolition, and property maintenance. We operate in Finland, helping our clients create a comfortable, safe, and well-maintained environment.
We guarantee quality, efficiency, and a personalized approach to every project.
Trust your home and property to professionals!
We guarantee quality, efficiency, and a personalized approach to every project.
Trust your home and property to professionals!
Our Services – A Comprehensive Approach to Any Task
We offer a wide range of services – from landscaping and demolition to welding and electrical work. Choose the service you need, and we’ll take care of the rest!
- We will prepare and enhance your property: level the ground, lay paving stones, plant a lawn, install curbs and drainage. We’ll make your space beautiful and functional!
- We install durable and aesthetically pleasing fences: metal, wooden, mesh, and combined options. Ensuring reliable protection and a harmonious look for your property!
- We safely and efficiently dismantle buildings, garages, outbuildings, and other structures. We work with all materials and handle debris removal.
- We remove hazardous and obstructive trees, clearing your property efficiently. We handle high-altitude work of any complexity, including crown shaping, branch trimming, installation, and dismantling of structures.
- Mowing, watering, fertilizing, and lawn restoration. Trimming and shaping hedges to keep your property looking neat and well-maintained.
- We provide high-quality welding for metal structures, fences, gates, canopies, and more. Guaranteed strength, reliability, and durability.
- We quickly clear snow and ice from driveways, roofs, and outdoor areas. Preventing collapses, ice buildup, and icicles. Fast, safe, and efficient service!
- We clean surfaces from mold, moss, and hazardous asbestos. We apply protective treatments to prevent regrowth. Safe and effective solutions!
- We remove dirt, moss, and buildup from roofs, walkways, and cobblestones. Using safe methods and cleaning solutions, we restore surfaces to a pristine and well-maintained look!
- We install, repair, and maintain plumbing systems, including pipes, faucets, toilets, and heating systems. Reliable solutions for your home and property!
- We install and repair wiring, outlets, switches, lighting, and electrical panels. Safe, high-quality work that meets all standards!
Our Projects – Results We Are Proud Of
Real Examples of Our Work – from landscaping to complex construction tasks. Quality, reliability, and attention to detail in every project!
What Our Clients Say About Us:
- Mikko KorhonenExcellent work! I ordered fence installation and landscaping – everything was done quickly and with high quality. The team is professional, polite, and the prices are reasonable. Highly recommend!
- Emilia LahtinenI contacted Onega Oy for snow removal from the roof. Everything went smoothly, the team worked carefully and safely. Now I know who to call in winter!
- Jari VäisänenI needed an old garage demolished – everything was done on time, without unnecessary hassle, and at a reasonable price. Very satisfied with the service, I will recommend it to friends!
- Anna MäkinenWe ordered paving stone cleaning and lawn care from Onega Oy. The result exceeded expectations – everything was clean, neat, and done quickly. Excellent service, I will definitely use it again!
Partners
We take pride in collaborating with leading companies and professionals who help us maintain a high level of service in Finland.
Training at ONEGA OY Join the asbestos removal training!
Do you want to work in a field where safety and professionalism come first?
We will train you to work with asbestos – legally, safely, and to the highest standards!
Why is asbestos removal so important?
Asbestos was widely used in Finnish buildings between 1922 and 1992, particularly during the 1960s and 1970s.
Even today, nearly one million buildings in Finland may still contain asbestos.
Its removal is permitted only for specially trained professionals.
We will train you to work with asbestos – legally, safely, and to the highest standards!
Why is asbestos removal so important?
Asbestos was widely used in Finnish buildings between 1922 and 1992, particularly during the 1960s and 1970s.
Even today, nearly one million buildings in Finland may still contain asbestos.
Its removal is permitted only for specially trained professionals.
The training gives you:
The right to legally perform asbestos removal work
.
Practical skills in occupational safety and health
Partial Vocational Qualification Certificate (40 competence points)
High demand in the construction job market
Course content:
Asbestos identification and safe removal methods
Proper use of personal protective equipment (PPE)
Waste handling and required documentation
Upon completion of the training — an official certificate
Duration: 3 + 2 days
Format: flexible online training, with in-person sessions if needed
Format: flexible online training, with in-person sessions if needed
Multilingual instructors and flexible schedule
On practical sessions, you are guided by a team of experienced instructors who speak multiple languages.
Exams and practical training are held monthly in different cities across Finland.
Training starts every week — you can study in the evenings after work or on weekends.
Both group and individual sessions are available, so the training fits your schedule and skill level.
Direct training — no intermediaries!
You learn directly from our specialists, without intermediaries. This means you can personally discuss the program and training scope.
The final price is determined after an individual assessment of your level, ensuring the program is high-quality and tailored to you.
Training cost: from €690 to €890 (VAT 0%)
Especially for international students!
Our course is also ideal for international participants:
On practical sessions, you are guided by a team of experienced instructors who speak multiple languages.
Exams and practical training are held monthly in different cities across Finland.
Training starts every week — you can study in the evenings after work or on weekends.
Both group and individual sessions are available, so the training fits your schedule and skill level.
Direct training — no intermediaries!
You learn directly from our specialists, without intermediaries. This means you can personally discuss the program and training scope.
The final price is determined after an individual assessment of your level, ensuring the program is high-quality and tailored to you.
Training cost: from €690 to €890 (VAT 0%)
Especially for international students!
Our course is also ideal for international participants:
- You will learn Finnish construction terminology
- Practice professional Finnish language
- Receive support from multilingual instructors
- The course is suitable for both employed and unemployed participants — the main requirement is your desire to learn and grow!
Sergei Shmakov
CEO ONEGA OY
Leave a request – we will solve your task quickly and professionally!
Select the service you need, and we will contact you to clarify the details. We operate throughout Finland!
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Contacts
+358413117681
onega.oy@gmail.com
Hoviherrankatu 3 B 21, 20780 Kaarina
onega.oy@gmail.com
Hoviherrankatu 3 B 21, 20780 Kaarina
Landscaping and Site Improvement
Fences and Enclosures for Homes and Properties
Building and Structure Demolition
Tree Removal and High-Altitude Work
Lawn and Hedge Maintenance
Welding Services
Mold, Asbestos, and Moss Removal
Roof, Paving Stone, and Brick Cleaning
Plumbing Services
Electrical Installation Services
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© All Rights Reserved. Onega Oy
KAARINA
Y-tunnus: 3478037-5
onegaoy@gmail.com
+358413117681
Made&Care by IFOX
KAARINA
Y-tunnus: 3478037-5
onegaoy@gmail.com
+358413117681
Made&Care by IFOX
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