The Hornets bossed possession but had to wait until the 57th minute to breach the Swans’ stout defence.
James Hammond, an early replacement for the injured Ronan Silva, crossed from the left-hand byline and Jamie Yila was on hand to bundle the ball home at the far post.
The victory extended Horsham’s unbeaten run to three games and moved them up to 13th in the National League South table.
The Hornets visit 18th-placed Maidenhead United tomorrow evening.
See the best of McCartney Martin’s photos from Horsham’s win over Walton & Hersham on this page and the ones linked. McCartney’s full match gallery can be found here.
Get the Hornets latest in the West Sussex County Times every Thursday.
1. Horsham FC battle the elements to earn narrow win over Walton & Hersham – the match in pictures
Horsham FC edged out Walton & Hersham 1-0 on a wet and windy afternoon at the Fusion Aviation Community Stadium Photo: McCartney Martin
2. Horsham FC battle the elements to earn narrow win over Walton & Hersham – the match in pictures
Horsham FC edged out Walton & Hersham 1-0 on a wet and windy afternoon at the Fusion Aviation Community Stadium Photo: McCartney Martin
3. Horsham FC battle the elements to earn narrow win over Walton & Hersham – the match in pictures
Horsham FC edged out Walton & Hersham 1-0 on a wet and windy afternoon at the Fusion Aviation Community Stadium Photo: McCartney Martin
4. Horsham FC battle the elements to earn narrow win over Walton & Hersham – the match in pictures
Horsham FC edged out Walton & Hersham 1-0 on a wet and windy afternoon at the Fusion Aviation Community Stadium Photo: McCartney Martin