ᐅ Building Services / Sustainable Construction

Discover how to make your home environmentally friendly, energy-efficient, and future-proof using modern building technology and sustainable construction methods!

Ecological Floor Construction in the Basement

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Jan Hieber•7 May 2026 14:33

Answers: 0

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Jan Hieber • 7 May 2026 14:33

Ring earth electrode: Where is the best location to install it?

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Lagom•23 Sep 2017 16:57

Answers: 11

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*Dipol* • 1 May 2026 00:30

Roof insulation using packed hemp and wood

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Lotte_123•30 Apr 2026 09:31

Answers: 0

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Lotte_123 • 30 Apr 2026 09:31

Maintenance of Heating (Heat Pump), Ventilation (Mechanical Ventilation with Heat Recovery), and Water Softening Systems

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Bookstar•30 Aug 2019 19:36

Answers: 5

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nortc • 2 Apr 2026 07:55

Recommendation for the size of the utility room

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Hawk•25 Jan 2026 13:35

Answers: 2

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ypg • 25 Jan 2026 14:46

4-pole momentary push button with center position compatible with Busch-Jäger systems

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Maddin•7 Jan 2011 08:45

Answers: 8

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hausbauer6 • 20 Jan 2026 22:01

Bathroom ventilation with moisture issues: vent pipe, condensation, and limited installation space

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beckl1988•10 Jan 2026 15:16

Answers: 1

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beckl1988 • 17 Jan 2026 22:06

Central Vacuum Exhaust: Is an Open Pipe or a Sealed Wall Box More Appropriate?

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Ganneff•14 Dec 2025 15:43

Answers: 8

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wiltshire • 21 Dec 2025 15:26

Experience with Lime Plaster/Lime Finish – Staining Issues

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RumoAug•24 Nov 2025 10:05

Answers: 3

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nordanney • 24 Nov 2025 12:16

Mounting cable for wall box on double wire mesh fence

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augur•26 Aug 2025 15:46

Answers: 7

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nordanney • 27 Aug 2025 22:52

Updating Video Surveillance – Current Status?

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Pianist•7 Mar 2025 17:22

Answers: 7

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bewobau • 9 Aug 2025 12:26

A rainwater retention tank on the property—what possibilities does this offer me?

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Stone82•27 Jul 2025 12:18

Answers: 8

Mahri23 • 29 Jul 2025 10:16

Construction Monitoring for a Semi-Detached House: Where is the Best Place to Install Cameras, Floodlights, and (Siren)?

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mm56789•23 Jun 2025 16:59

Answers: 7

lastdrop • 25 Jun 2025 21:21

Experiences with the Use of Cove Lighting

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goldfisch138•12 Mar 2025 19:44

Answers: 2

Malle Zwabber • 14 Mar 2025 11:49

Sizing the Main Electrical Connection (for Photovoltaic Systems, Heat Pumps, and Electric Vehicle Charging Stations)

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Bauen68•2 Jan 2025 14:02

Answers: 11

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Allthewayup • 16 Jan 2025 21:39

Smart meter, photovoltaic system, Growatt inverter, Shine smartphone app

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Egon12•2 Jan 2025 10:39

Answers: 0

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Egon12 • 2 Jan 2025 10:39

Smart plugs without Wi-Fi and without an additional hub?

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mikeT123•13 Dec 2024 11:02

Answers: 4

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mikeT123 • 18 Dec 2024 15:21

Conel CLEAR 2.0 RD – Backflushing

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Corini1985•8 Mar 2020 16:30

Answers: 4

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Dande768 • 12 Dec 2024 22:06

Energy-Efficient Home Renovation: Our Experiences

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benno123•24 Nov 2024 12:05

Answers: 9

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benno123 • 7 Dec 2024 07:26

Installing LED strip lighting into staircase stringers / with smart home integration

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Thomas.W•2 Dec 2024 13:24

Answers: 0

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Thomas.W • 2 Dec 2024 13:24

Installation of a timer switch for the ventilation system

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hannoverhans•15 Oct 2024 22:28

Answers: 4

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hanghaus2023 • 16 Oct 2024 18:46

Why are banks suddenly asking to see energy performance certificates?

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DresdenHaus•10 Aug 2024 11:12

Answers: 5

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Pinkiponk • 15 Aug 2024 12:04

How effective are combined systems: heat pumps, solar panels, and energy storage?

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baunewbiene•11 Aug 2024 09:18

Answers: 2

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Jesse Custer • 11 Aug 2024 11:41

Energy-Free House with Octopus Energy and Roth Massivhaus?

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Cloud•10 Aug 2024 15:57

Answers: 11

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ypg • 11 Aug 2024 11:14

Backflow Prevention System Water Damage Protection

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Andii87•1 Aug 2024 20:56

Answers: 6

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Snowy36 • 7 Aug 2024 10:22

Actual size of the telecommunications cable single-conduit entry?

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Hausbauer23•31 Jul 2024 17:46

Answers: 8

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Fuchur • 1 Aug 2024 11:34

We are experiencing an electrical issue with electric vehicle charging stations in Germany.

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Alfa1970•13 Jul 2024 10:51

Answers: 12

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nordanney • 17 Jul 2024 00:11

IP doorbell system with RFID access / without video function

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filosof•15 May 2024 16:37

Answers: 0

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filosof • 15 May 2024 16:37

Door contact cable routed to the technical/mechanical room

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mongolo•3 May 2024 01:12

Answers: 21

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filosof • 7 May 2024 13:36

Fiber Optic Main Distribution Frame (MDF) / Access Point Latest Configuration

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Bau-beendet•5 May 2024 13:54

Answers: 6

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Michilo • 6 May 2024 08:23

Planned ventilation concept using the chimney to utilize excess heat

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SPATZ242•17 Apr 2024 00:33

Answers: 5

Tolentino • 23 Apr 2024 15:08

Applying for a Fiber Optic Connection in a New Construction Project

tristan01•5 Apr 2024 09:37

Answers: 4

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Bau-beendet • 11 Apr 2024 16:25

Retrofitting Window Contact Sensors

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Cessna_•11 Mar 2024 22:04

Answers: 11

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Harakiri • 13 Mar 2024 08:19

Lighting Ideas for a Scandinavian-Style House?

In der Ruine•27 Feb 2024 06:37

Answers: 1

In der Ruine • 2 Mar 2024 17:56

Replacing a Doorbell - What Should Be Considered?

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mfisched•2 Feb 2024 09:28

Answers: 2

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jens.knoedel • 2 Feb 2024 13:41

Intercom system with indoor unit Siedle Compact CA 812-1

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Zaphir11•19 Jan 2024 20:25

Answers: 0

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Zaphir11 • 19 Jan 2024 20:25

Mysterious Issue with the Oven and Microwave

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karambol•18 Jan 2024 21:08

Answers: 7

Malle Zwabber • 19 Jan 2024 12:42

Remove old cable connections?

BauPaar•16 Dec 2023 05:54

Answers: 8

Tolentino • 17 Dec 2023 15:25

Location of the meter cabinet or main distribution panel

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wildbweg•3 Dec 2023 20:20

Answers: 1

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xMisterDx • 3 Dec 2023 21:20

New single-family house construction (180 sqm) with basement and building services engineering

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SSB_OBK•15 Oct 2023 22:32

Answers: 5

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hanghaus2023 • 20 Nov 2023 12:56

Maintenance Contract for Temporary Construction Power Distribution Unit

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Gregor_K•3 Oct 2023 17:06

Answers: 37

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Gerddieter • 5 Nov 2023 23:07

What is the recommended distance between a cistern and a domestic water booster system?

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Waldlurch•29 Oct 2023 19:01

Answers: 2

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Waldlurch • 1 Nov 2023 18:28

Planning a Network Cabinet and Home Server

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Rhyem86•22 Aug 2023 12:27

Answers: 48

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Rhyem86 • 10 Oct 2023 16:06

Utility company has incorrect meter numbers in their system – what should I do?

kati1337•4 Sep 2023 15:53

Answers: 42

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HeimatBauer • 25 Sep 2023 18:35

Siedle Doorbell System TLM 612 Vario Malfunctioning

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Homeboy29•23 Jul 2023 14:05

Answers: 1

i_b_n_a_n • 24 Jul 2023 07:55

Connecting a Cistern from the Basement – But How?

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b2see•6 Jul 2023 09:48

Answers: 11

Tolentino • 14 Jul 2023 16:23

Broadband Provider Home Connection – Contact Unsuccessful

kati1337•19 Mar 2023 18:45

Answers: 60

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guckuck2 • 5 Jul 2023 13:11

20% Relative Humidity in a KfW 40+ New Build

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Ypsi aus NI•3 Mar 2023 08:43

Answers: 113

Lotti88 • 21 Jun 2023 10:56

What is this device on the facade?

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Shakey22•20 Apr 2023 20:40

Answers: 3

11ant • 21 Apr 2023 13:20

Installing an overflow siphon for a cistern

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Wetterauer•16 Apr 2023 20:02

Answers: 0

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Wetterauer • 16 Apr 2023 20:02

Electricity and Gas Caps – Interested in Some Numbers?

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Pinkiponk•3 Nov 2022 11:30

Answers: 43

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motorradsilke • 1 Apr 2023 23:07

How do you assess the ISOWOOD concept?

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Karlsson•31 Mar 2023 23:43

Answers: 5

11ant • 1 Apr 2023 16:11

Do you have a water softening system installed?

SebastianSE•4 Dec 2014 22:34

Answers: 95

Tolentino • 31 Mar 2023 10:17

Ventilation design for KfW 55 standard using window-frame ventilators and a mechanical ventilation system

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Andii87•5 Mar 2023 12:25

Answers: 0

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Andii87 • 5 Mar 2023 12:25

Circulation pump for plastic water cistern

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Wetterauer•23 Feb 2023 18:15

Answers: 0

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Wetterauer • 23 Feb 2023 18:15

Are there smoke detectors with wireless connectivity or smartphone alerts?

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Heidi1965•19 Feb 2023 10:51

Answers: 3

rick2018 • 19 Feb 2023 19:31

LAN and Wi-Fi – Separate Devices per Floor?

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Tom Ezio•11 Feb 2023 15:16

Answers: 39

11ant • 18 Feb 2023 15:23

Cistern! I don’t want one, but I am being forced to have it – experiences

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wesson76•15 Jan 2023 20:05

Answers: 40

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WilderSueden • 26 Jan 2023 09:06

Is it possible to have a utility room under the roof?

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Mar_Mar•17 Jan 2023 11:33

Answers: 15

11ant • 18 Jan 2023 13:00

How and where do you save energy at home?

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Flury•3 Nov 2022 11:08

Answers: 16

i_b_n_a_n • 29 Dec 2022 11:24

Challenges for MEP planners: underfloor heating flow temperature and wastewater ventilation

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Pacmansh•15 Jul 2022 10:22

Answers: 124

KlaRa • 19 Dec 2022 18:44

House electricity consumption – what is your usage?

chewbacca123•6 Oct 2020 06:29

Answers: 418

Nida35a • 15 Dec 2022 10:58

Blower door test result for KfW 55 standard

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Prager91•8 Mar 2022 07:44

Answers: 21

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Fleckenzwerg • 4 Nov 2022 09:15

Local heating network or heat pump – advice and experiences?

se_na_23•1 Aug 2022 13:03

Answers: 39

Malle Zwabber • 20 Oct 2022 03:31

Grünbeck Softliq SD18 water has a musty taste.

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Applefan•8 Oct 2022 19:59

Answers: 22

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Applefan • 11 Oct 2022 20:25

Renovating a 1970s House as a DIY Project Without Asbestos Testing

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DitUndDat•10 Aug 2022 20:51

Answers: 6

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WilderSueden • 17 Aug 2022 23:23

Fiber optic connection is being installed – should the existing multi-utility conduit be used?

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Vrumfondel•9 May 2022 16:39

Answers: 30

Tolentino • 10 Aug 2022 12:10

Who has experience with cisterns?

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Changeling•17 Jul 2018 13:29

Answers: 44

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Roookie • 7 Aug 2022 22:39

Connecting an IP Phone to Multiple Telephone Systems

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squier23•4 Aug 2022 09:57

Answers: 10

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Benutzer 1001 • 4 Aug 2022 22:16

FibreTwist and Unifi Router – What About Telephone Services?!

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squier23•3 Aug 2022 15:01

Answers: 5

OWLer • 4 Aug 2022 10:19

Ban on Gas Heating Lifted Starting in 2025

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Scout**•19 Jul 2022 12:01

Answers: 31

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chand1986 • 21 Jul 2022 15:58

Experience with in-wall radios?

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nelly190•4 Sep 2016 20:02

Answers: 35

i_b_n_a_n • 18 Jul 2022 12:46

How long can temporary construction power be used?

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Max1978•14 Jul 2022 15:27

Answers: 2

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Max1978 • 15 Jul 2022 10:10

Utility room / router / access points / switches

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Prager91•23 Feb 2022 07:50

Answers: 99

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Bauenaberwie • 14 Jul 2022 12:19

Conduits for Satellite and Telecommunications: Mandatory or Not in New Construction?

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darksun•29 Jun 2022 17:46

Answers: 13

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rbommes • 4 Jul 2022 13:52

Change heating system after building permit approval or during construction phase

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Maddin086•25 Jun 2022 11:45

Answers: 0

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Maddin086 • 25 Jun 2022 11:45

How to Seal Electrical Conduits for Cable Penetrations?

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regu123•8 May 2022 13:24

Answers: 12

kati1337 • 9 May 2022 07:55

Cistern and Potential Issues with Water Drainage

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Sternennacht•30 Apr 2022 13:04

Answers: 11

Araknis • 1 May 2022 19:09

Experiences with Starlink from SpaceX or GigaCube?

kati1337•31 Mar 2022 08:46

Answers: 56

kati1337 • 16 Apr 2022 21:05

Promasil (insulating bricks), which type of coating?

ateliersiegel•2 Apr 2022 18:35

Answers: 2

ateliersiegel • 2 Apr 2022 20:52

Is an additional €30,000 for geothermal heating worthwhile? Any experiences?

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NBN2022•14 Mar 2022 16:00

Answers: 27

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NBN2022 • 16 Mar 2022 19:31

Conversion of the Satellite System – from Quad to Quattro LNB

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DenisDUS•19 Feb 2022 19:59

Answers: 3

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Gartenfreund • 20 Feb 2022 04:50

Problems with the water softening system from Permatrade

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_Oskar_•16 Feb 2022 08:22

Answers: 12

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HilfeHilfe • 17 Feb 2022 07:07

Eliminating Booklice in a New Build

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-•22 Aug 2012 23:15

Answers: 10

kati1337 • 10 Feb 2022 09:06

Experiences with concrete core activation

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Schwabe23•8 Feb 2022 15:09

Answers: 6

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Daniel-Sp • 9 Feb 2022 00:17

Planning the Utility Room (Spacing Between Equipment)

olop01y•21 Jan 2022 20:57

Answers: 40

Tarnari • 2 Feb 2022 18:29

Plot: Costs for Sewage Ejector Pump System

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__dlo__•12 Jan 2022 06:46

Answers: 1

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bortel • 2 Feb 2022 10:35

Cat flap in KfW55 house with ventilation – any experiences?

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KUM_im_Tal•23 Mar 2021 09:33

Answers: 38

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Evolith • 13 Jan 2022 11:00

Wired Connection vs. Telecom Fiber Optic – Making the Choice

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kgeisler•26 Apr 2021 14:56

Answers: 56

Araknis • 4 Jan 2022 09:03

Experiences with Customized Telecom Broadband Connections?

kati1337•29 Dec 2021 13:30

Answers: 7

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CC35BS38 • 29 Dec 2021 19:05

Any experiences with the Delta wallbox "Max BL"?

kati1337•9 Sep 2021 13:54

Answers: 10

kati1337 • 29 Dec 2021 18:36

Energy efficiency verification instead of an energy performance certificate for rental properties

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kinogutschein•17 Nov 2021 09:14

Answers: 5

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guckuck2 • 17 Nov 2021 19:27

General contractor recommends combined storage tank with buffer for underfloor heating – what to do?

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BananaJoe•25 Oct 2021 17:10

Answers: 0

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BananaJoe • 25 Oct 2021 17:10

Electrical specification review with developer preparation

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vorkalmatador•2 Jul 2021 13:15

Answers: 48

OWLer • 15 Oct 2021 06:22

Is a water softener system advisable or not?

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Alexius•11 Feb 2019 18:12

Answers: 88

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MayrCh • 14 Oct 2021 15:10

Is main lighting with LED strips practical?

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JürgenJosef•27 Jul 2021 15:03

Answers: 43

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JürgenJosef • 3 Oct 2021 21:31

Suitable Heating System for a New Build – How to Choose?

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Andreas_79•26 Jul 2021 12:07

Answers: 77

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sub-xero • 27 Aug 2021 07:25

Retrofitting a Pressure Booster System

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_Ugeen_•10 Aug 2021 22:06

Answers: 4

i_b_n_a_n • 12 Aug 2021 02:22

Methanol as a Long-Term Energy Storage Solution for Fuel Cells in Residential Buildings

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hampshire•12 Jul 2021 22:27

Answers: 15

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hampshire • 11 Aug 2021 23:29

Strong increase in indoor air humidity during summer

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Mike Dellas•14 Jul 2021 11:53

Answers: 13

Tarnari • 11 Aug 2021 19:26