Quality and sustainability

A Siedle system is a safe investment. We see door communication as part of the building, as an investment. It has to last just as long.

Change wallpapers. Siedle stays.

When the wallpaper is long gone, Siedle still rings, speaks and opens the door. Many in-house telephones and door stations from the 70s, even from the 60s and 50s, are still in service today without complaint. No wonder: that's what they were designed and built for. Obsolescence, the planned inusitation of products, is a foreign word for Siedle. Because the most sustainable are products that have been carefully produced and last a long time.

hand-polished: Siedle Steel

No compromises: Siedle quality

We have incredibly high expectations of functional safety, durability, and longevity which surpass legal requirements. We therefore use particularly high-quality materials, such as corrosion-resistant V4A stainless steel, developed for use in seawater, swimming pools, or chemical industrial plants.

To our products
Siedle: Mit eigenem EMV-Labor

Master of good sound

Siedle products are known for their excellent transmission and sound quality. And for good reason: our acoustic lab specialists have been involved in the development of new products from the very beginning to guarantee the best performance from microphones and loudspeakers.

Siedle: So gut wie unverwüstlich

As good as bullet proof

Hammer blows, water baths, salt spray, electric and acoustic tests, UV rays, and continuous use without breaks: our products and materials first have to prove their reliability under extreme conditions.

Siedle: Meister des guten Klangs

With its own EMC laboratory

We test our devices for electromagnetic compatibility (EMC). EMC acceptance is a recognised quality feature and a prerequisite for the CE mark. External companies also benefit from the high standard of our EMC laboratory as a service for developing their products.

Our sustainability goals

Environmental and climate protection guide our company practices and are matched with other traditional company goals. Our energy-saving production processes and responsible waste management are testament to these principles. But they’re also expressed through our products themselves. If you truly want to save resources and the environment, manufacture items that are repairable in case of accidents and function for years to come.

Siedle: Efficient with a low environmental impact

Efficient with a low environmental impact

We have been purchasing CO2-free electricity from renewable sources for several years. In the course of 2016, we also introduced an energy management system in accordance with DIN EN ISO 50001 and successfully completed certification. Through a mix of different measures, we have been able to continuously reduce our electricity consumption in recent years.

Siedle: Ein (fast) perfekter Kreislauf

(Almost) perfect cycle

We use long-life, pollutant-free, and reusable materials in our production, with no lead used in the manufacture of our circuit boards. Combined with proven methods of waste prevention and separation, this has a positive impact on our waste reduction. In 2018, we were able to increase the percentage of parts recycled from our overall waste output to over 99%.

Siedle Fertigung

On the right path

Environmental protection and work safety are never secondary at Siedle. We’re proud of our measurable results, but we still want to achieve more – such as regular employee training, and consistently involving suppliers and service providers in measures for environmental protection and safety-compliant procedures in the workplace.

You can find our latest environmental report here.

To the environmental report
Siedle Reparaturservice

Long life products

Our devices remain with their owners for decades. Our wide range of Siedle replacement parts and comprehensive service packages ensure that devices keep functioning and retain their value over a long period of time. Subsequent upgrades or expansions are also not a problem, thanks to our products’ modular design and backwards compatibility.

About durability and investment protection

Total costs count

Siedle protects our customers’ investments. This is also a reason for not just looking at the purchase price, but also at continuity. The true costs are only seen years later.

Siedle Haustelefon HT 311

Replacement and exchange

Siedle products are extremely durable, but they might still break. At some point, there will be repairs to be done and spare parts will be needed. It then becomes clear how a manufacturer deals with this. Does the customer have to renew the entire system, or only a defective part of it?

Siedle ensures that repairs can still be made for decades. For all other cases, replacement devices are available.

Value preserved through backwards compatibility

Even systems that are 30 or 40 years old can usually still be repaired. Siedle tries its best to help and provide replacements. However, what’s crucial is not just the individual spare part, but preserving the value of the systems that are installed as well. For example, if you have a 6+n system from the 1960s, you will be given the latest telephones and door stations for it.

Cost, device status, error patterns and failure frequency: these are all critical criteria when choosing whether to repair or replace your system.

Siedle Werkservice

Our repair service

Our service doesn't just make repairs, it also advises our customers because sometimes, switching to a new system is more cost-effective than constantly maintaining an old one. Even then, existing housings and cabling can often be reused.

We keep parts, capacity and machines available so that we can continue to supply the necessary spare parts even many years later, and we have employees in our service centre who have been working at Siedle for over 30 years. Their experience and knowledge of devices that haven’t been available for a long time is an endless source. Of course, all this comes at a cost. But the effort and expense is worth it.

Total costs count

Siedle protects our customers’ investments. This is also a reason for not just looking at the purchase price, but also at continuity. The true costs are only seen years later.

Siedle Haustelefon HT 311

Replacement and exchange

Siedle products are extremely durable, but they might still break. At some point, there will be repairs to be done and spare parts will be needed. It then becomes clear how a manufacturer deals with this. Does the customer have to renew the entire system, or only a defective part of it?

Siedle ensures that repairs can still be made for decades. For all other cases, replacement devices are available.