Complete construction solutions under one roof
We cover the full range of trades, from solar power plants to roofing. One company, five trades, one accountable partner.
Why Quantum Sphere
Four reasons our clients trust us with their projects
Experienced in-house teams
Every trade is delivered by our own staff — no random subcontractors. That gives us full control over quality and schedule.
Quality and safety
We work to applicable standards and occupational-safety regulations. Every project is handed over with the relevant documentation and inspection reports.
Reliable deadlines
We treat the agreed schedule as a commitment. We keep clients regularly informed and deal with any complications early.
Full-service delivery
From solar power plants to roofing — everything under one roof. One partner for five trades means simpler coordination and fewer headaches for you.
Selected projects
A sample of projects from recent years
Solar power plantsRooftop photovoltaic power plant
Slovakia
Design and installation of a rooftop PV system for an industrial building, including project documentation and connection to the distribution grid.
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Solar power plantsGround-mounted solar park with storage
Nitra Region, Slovakia
Turnkey ground-mounted PV array of approximately 480 kWp paired with battery storage, delivered from foundations through to grid connection.
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Electrical installationsElectrical fit-out for retail premises
Slovakia
High- and low-voltage wiring including LED lighting, distribution boards and an intruder alarm for commercial premises.
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Electrical installationsEV charging hub for a logistics depot
Trnava Region, Slovakia
DC fast-charging bays for a commercial vehicle fleet, load-managed to stay within the site's available grid capacity.
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Electrical installationsWarehouse power and LED high-bay lighting
Žilina Region, Slovakia
Low-voltage distribution and LED high-bay lighting for a 9,000 m² logistics warehouse, controlled by daylight and presence sensors.
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DrywallOffice drywall fit-out
Bratislava, Slovakia
Complete drywall partitions, suspended ceilings and acoustic solutions for a newly refurbished office space.
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DrywallOutpatient clinic interior fit-out
Bratislava, Slovakia
Fire-rated and hygienic drywall partitions, suspended ceilings and acoustic treatment for an outpatient clinic across two floors.
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Roof installationApartment block pitched-roof renewal
Košice, Slovakia
Full renewal of a five-storey block's pitched roof — battens, membrane, clay tiles, insulation and tinwork — carried out in phases with the building occupied.
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MasonryReinforced retaining wall and site masonry
Trenčín Region, Slovakia
Reinforced retaining structure stabilising a sloped plot for a new-build house, with natural-stone facing, drainage and landscaping masonry.
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Roof installationIndustrial hall re-roofing
Slovakia
Strip and replacement of an existing flat roof with a membrane waterproofing system on a manufacturing facility.
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MasonryBrick facade and masonry work
Slovakia
Load-bearing masonry and a clay-brick facade for a multi-unit residential building, including lintels and openings.
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Solar power plantsSolar carport with EV charging
Slovakia
Planned photovoltaic carport structure with integrated electric-vehicle charging points for a corporate car park.
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Where we work
We carry out projects across Slovakia, with our base in Bratislava. Selected larger commissions are also delivered for clients in Central Europe and the wider EU — reflected in our five-language support.
About Quantum Sphere
We are a construction company based in Slovakia. We specialise in comprehensive delivery across five trades. We work for both business and private clients, and thanks to our own teams in every trade we can carry out most projects without subcontractors.
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