We just had carpet installed on our stairs. With our previous 15 year old carpet, I never noticed that there was a gap between the stairs and the skirtboard. With our new carpet the gap is apparent. Some of the carpet sticks out and looks unfinished on the wall side. I'm wondering if it's just because of the gap or if the carpet should have been installed differently. Is there a way to install carpet so the gap between the wall and stairs isn't noticeable? Thank you.
There are two aspects to this, making it somewhat subjective:
Width of the carpet. This needs to be enough to span the gap, but not so much that it causes buckling.
Whether or not it's tucked. If left flat the appearance may be better, but the likelihood that a gap shows is greater. If tucked, there will be a curl in the carpet surface, but the fit will be more snug.
If you're not happy, contact your installer. They may be able to stretch it slightly to close the gaps, or they'll have to reinstall some or all of it.