TOPEKA (AP) — Four engineering and surveying businesses have donated a combined $20,000 worth of services to Topeka Habitat for Humanity.

The Topeka Capital-Journal reports officials of the nonprofit organization announced the contribution Tuesday.

Firms making the donation are Schmidt, Beck and Boyd Engineering; Professional Engineering Consultants; CFS Engineers; and Bartlett and West.

Topeka Habitat for Humanity provides financial education to low-income families and the opportunity to become homeowners through interest-free loans. Students from three Topeka area high schools build the homes for academic credit.