to InstallExtra

InstallExtra is a young and dynamic organization that offers products such as hot water heaters, hot water systems, heat pump boilers, heating, decalcifying equipment, taps, water saving equipment and air conditioners to consumers and companies through various webshops. In addition to selling products, with or without a maintenance agreement, installation is also available through our experienced network of 20 professionals who operate nationwide. We are always looking to increase the number of professionals with whom we work. If you also would like to work as an installation technician for InstallExtra, please contact us and we will be happy to visit with you to tell you all the benefits.

Our mission is to massively reduce the energy consumption of consumers and/or businesses with energy and water saving solutions and to offer every customer the right product that meets his or her needs at the right cost.

Our brands

Boilergigant, onderdeel van InstallExtra

Looking for top quality water heaters in Benelux? At Boilergigant we only sell the very best brands such as Itho Daalderop, Nibe and Stiebel Eltron. Thanks to our many years of experience with boilers, taps, and warm water, we can give our customers the right and best advice.

Kokendwatergigant, onderdeel van InstallExtra

In addition to the most complete range of boiling water taps from the brands Quooker, Franke, Selsiuz and Grohe, we also guarantee you the best possible price. Do you want the best advice for your situation?

Kalkloos, onderdeel van InstallExtra

With Kalkloos water softeners, you neutralize limescale and prevent just about all limescale and rust formation in your bathroom and kitchen. You can wipe away what's left with a cloth. What a relief! Don't hesitate; check out the possibilities.

Kokendwaterexpert, onderdeel van InstallExtra

A wide range of products for every household coupled with the best service gives you the golden combination that can only be found at Kokendwaterexpert. Think of Quooker, Hotspot Titanium, Ace & Unito.

Comfortsaver, onderdeel van InstallExtra

Conscientious use of water and energy is good for the environment and for your wallet. Saving energy and water can now be done easily and cheaply with the revolutionary Comfortsaver. The Comfortsaver is new on the Dutch market.

Boilerhuis, onderdeel van InstallExtra

Dé connaisseur op het gebied van boilers, welkom bij Boilerhuis! Samen met ons team van experts met meer dan 25 jaar ervaring, werken we iedere dag keihard om onze klanten te voorzien van het beste advies. Iedere woonsituatie heeft een andere boiler nodig.

Hybridegigant, onderdeel van InstallExtra

The specialist in sustainable heat pump technology. At Hybridegigant, we contribute to improving the environment. We are committed to providing high-quality heat pumps that enable an efficient, sustainable living environment.

Wateraccu.nl, is onderdeel van InstallExtra

Green power, green energy and sustainable water? These things are of paramount importance to Wateraccu.nl. With the ultimate solution 'heat storage system' for residential and commercial buildings, we are doing our part for a green future.

Would you like to know more about our products?

Contact us:

Our services

Montageservice van InstallExtra


Your purchase quickly and professionally installed.

InstallExtra beschikt over een unieke tool; De boilerwijzer


Our boiler-chooser helps you find your ideal boiler.

InstallExtra levert persoonlijk en op maat gemaakte advies

Personalized advice

Met meer dan 25 jaar ervaring weten wij jou alles te vertellen.

InstallExtra beschikt over een unieke tool: De kokend water wijzer

Boiling water tap-chooser

We can help you find your ideal boiling water tap and system within 30 seconds.


Thank you for contacting us. Our team of experts are ready to answer all of your questions, receive feedback, or provide tailor-made advice for your specific situation.

Opening Times

Monday through Friday, 8:00am - 5:00pm.

Contact Form

By clicking submit, you agree to our terms and conditions and privacy policy.

Our Success in Numbers

Every day we strive to help our customers purchase the perfect product. We are proud to share these figures!

Aantal verkochte producten van InstallExtra
Products sold
Aantal blije klanten van InstallExtra
Happy customers
Aantal webshops van InstallExtra

We work with these brands