We are celebrating our 30th company anniversary this year.

Richard Lengweiler, a trained heating engineer and heating engineer, founded the current family business in 1994.

Our son Manuel is the second generation to work in the company. We specialize in heating renovation with

renewable energy such as heat pumps, wood, pellet, gas and oil heating systems. From consultation to planning,

from implementation to system handover,

everything from Lengweiler's hands.

Don't hesitate to contact Lengweiler's.

We will be happy to provide you with a no-obligation quote for your new heating system.