The clean sweep ended South Africa’s hopes of reaching the 2027 World Group I play-offs, sending them back to the World Group II play-offs early next year.
Norval says he was surprised by the quality of Bosnia and Herzegovina’s performance, particularly in conditions South Africa had hoped would play into their hands.
"My assessment is they came out a bit better than I thought. We prepared as well as we can and two close matches last night with maybe a slight bit of level now and again, we could have at least won one of them I think but we didn't,” Norval said.
“Then going into the doubles, I felt they were too good for us today in the doubles. We were pretty competitive yesterday I thought but today we got outplayed and yeah, they ended up being very strong."
Bosnia and Herzegovina came into the tie ranked 39th in the Davis Cup Nations rankings, 19 places above South Africa.
Norval believes the defeat serves as a wake-up call and a much needed test for the team as they look to build towards next year’s Davis Cup campaign.
"A team that shouldn't be in this group, they're too strong for group two, they are actually a group one team that's been relegated down to this group. So, we got one of the toughest but the positives out of that is that we can measure ourselves against a team like that,” he added.