Crawley leapfrogged Beccehamians in London Four South East after a narrow home win.
All the points came inside ten minutes as Crawley held on to win 5-3 .
Centre Ed Dowling scored the home try but they were denied further scores by superb defence as Andy Evans' expert tactical kicking kept driving them forward.
A back muscle injury to Guy Young was the only setback for Crawley.
Heathfield and Waldron were guilty of costly errors as they went down 28-8 at Guy's Hospital.
Number eight Paul Humphreys scored their try with Will Drinkwater kicking a penalty.
Heath, who were promoted in a play-off last season, started the game brightly and believe they are playing enough good rugby to get off the bottom of the table.
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