Answer: crawlspace

AnswerCrossword Clue
CRAWLSPACE

Plumber's access, at times

CRAWLSPACE

Area under a house

CRAWLSPACE

Attic's smaller cousin

CRAWLSPACE
Access to plumbing or wiring, perhaps
CRAWLSPACE
Cramped alternative to a basement
CRAWLSPACEWhere electricians can't stand to work?