We replace old wiring and outdated systems with secure, compliant solutions.

We upgrade outdated electrical installations to meet today’s safety standards and energy needs. Whether you’re renovating a full home or just replacing an old panel, our licensed electricians ensure clean, precise work from start to finish.

Tailored to Your Perspective

Custom renovations tailored to your style and needs.

Clear Process

Clear communication and effective project management.

Sustainable Excellence

Long-lasting results guaranteed by the use of high-quality materials.

We replace old wiring and outdated systems with secure, compliant solutions.

Tailored to Your Perspective

Custom renovations tailored to your style and needs.

Clear Process

Clear communication and effective project management.

Sustainable Excellence

Long-lasting results guaranteed by the use of high-quality materials.

Is your home outdated, uncomfortable, or lacking functionality?

Poor layout, old finishes, or inefficient use of space can turn your daily life into a hassle.

Joyser Casa handles your entire renovation – from demolition to finishing touches.

You get a single point of contact, a clear timeline, and results that match your vision.

Why Homeowners Choose Joyser Casa

Full-Spectrum Renovation

Interior or exterior – we handle it all, with seamless coordination and top craftsmanship.

Local Expertise

We know the rules, suppliers, and standards of Luxembourg. That means fewer surprises, better results.

Certified & Authorized

From low-voltage to full electrical installations (CREOS approved) – we’re fully qualified to manage every technical aspect.

Transparency & Trust

Clear budgets, realistic timelines, no last-minute costs. You’re always informed.

Why Choose Joyser Casa for Energy Renovation

At Joyser Casa, your safety comes first. We use only certified electricians and modern materials that meet all current standards. Our team replaces old systems with care and precision, making sure everything works properly and looks clean. We keep your home tidy during the work and finish on time. You’ll always know what to expect, with clear prices and no surprises. All work is done by our own team, so you stay in control from start to finish.

Our Energy Renovation Services

General Electrical Services

At Joyser Casa, we provide complete electrical services designed to keep your home or business safe, functional, and future-ready. From full installations and rewiring to smart home automation and lighting design, our certified electricians handle...

HVAC / BMS

At Joyser Casa, we design and install HVAC (Heating, Ventilation, and Air Conditioning) and BMS (Building Management Systems) that improve comfort, efficiency, and control. Whether you’re renovating a home, office, or mixed-use building, we deliver...

Energy Production

We install solar panels to help you generate your own electricity. You save on energy bills and reduce dependence on the grid.

...

Energy Reduction

We replace old windows, insulate walls and attics, and seal heat loss points. Your home stays warm in winter, cool in summer, and uses less energy.

...

Over a Decade of Trusted Renovations in Luxembourg

For more than 10 years, Joyser Casa has delivered reliable, high-quality renovations across Luxembourg. We combine local expertise with a passion for detail, turning your ideas into lasting results.

Ready to start your own transformation?

Real Experiences.
Real Satisfaction.

- Audrey

“Top-notch professionals! Joyser made sure everything went according to plan and were a pleasure to work with throughout our home renovation. They were efficient and did an impeccable job. We highly recommend them.”

- Frank Netrval

“We’ve already called on Joyser several times to install a new bathroom, new windows and electric shutters. The work was done professionally and on time. Gabriel was very responsive and had good solutions to improve your project. We also appreciated being able to purchase and supply our own appliances. I highly recommend Joyser. I will use their services again in the future.”

- Lucie Aubry

“We called on Joyser Casa to build an acoustic barrier. We’re very satisfied with the work and the site supervision. Their responsiveness to our questions and their availability for a quick start to the work is much appreciated. We highly recommend their services!”

Before & After
Transformations

How It Works:

1.

Consultation

Share your perspective and concepts.

2.

Planification

We propose a precise plan and schedule for your project.

3.

Execution

Our team makes your dream come true with precision and care.

4.

Final Evaluation

Together, we ensure that every detail meets your expectations.

Other Projects

Enjoy Exclusive
Perks with Us.

Free Initial Consultation

Start with a free consultation – no strings attached.

Clear Timeline & Budget Planning

We provide transparent schedules and estimates so your renovation stays on track—no surprises.

Work with Our Design Partners

Collaborate closely with experienced designers to align every detail with your style and needs.

Let’s build your dream space together.

From full renovations to elegant upgrades, we turn your vision into reality.

Are You Ready to Elevate your Home?

We replace old wiring and outdated systems with secure, compliant solutions.

Tailored to Your Perspective

Clear Process

Sustainable Excellence

We replace old wiring and outdated systems with secure, compliant solutions.

Tailored to Your Perspective

Clear Process

Sustainable Excellence

Is your home outdated, uncomfortable, or lacking functionality?

Joyser Casa handles your entire renovation – from demolition to finishing touches.

Why Homeowners Choose Joyser Casa

Full-Spectrum Renovation

Local Expertise

Certified & Authorized

Transparency & Trust

Why Choose Joyser Casa for Energy Renovation

Our Energy Renovation Services

General Electrical Services

HVAC / BMS

Energy Production

Energy Reduction

Over a Decade of Trusted Renovations in Luxembourg

Real Experiences.Real Satisfaction.

- Audrey

- Frank Netrval

- Lucie Aubry

Before & AfterTransformations

How It Works:

1.

Consultation

2.

Planification

3.

Execution

4.

Final Evaluation

Other Projects

Enjoy ExclusivePerks with Us.

Free Initial Consultation

Clear Timeline & Budget Planning

Work with Our Design Partners

Let’s build your dream space together.

Get Your Free Quote

Real Experiences.
Real Satisfaction.

Before & After
Transformations

Enjoy Exclusive
Perks with Us.