Conference leaders Dagenham wasted a chance to move three points clear after being held away against Crawley.
Crawley's Tony Scully went close twice when he fired over and then powered a shot wide from the edge of the area.
On the stroke of half-time, Crawley keeper Ben Hamer denied Paul Benson, while Sam Sloma and Ben Judge both fired efforts over after the restart.
Dagenham were reduced to 10 men when midfielder David Rainford was sent off for violent conduct but they held on.
Crawley Town: Hamer, Hiley, Judge, Woozley, Wright (Benjamin 86), Bostwick, Blackburn, Marshall, Scully, Edwards, Blackman (Rendell 81).
Subs Not Used: Tolfrey, Macleod, Lovegrove.
Dag & Red: Roberts, Foster , Blackett, Uddin, Griffiths, Akurang, Rainford, Southam (Leberl 83), Sloma (Vernazza 65), Mackail-Smith, Benson.
Subs Not Used: Cole, Strevens, Hogan.
Sent Off: Rainford (63).
Ref: B Malone (Wiltshire).