“We Don’t Clean the Edges”: What One San Antonio Home Taught Us About a Complete Carpet Cleaning

A homeowner in the Stone Oak area, on San Antonio’s north side, called us shortly after paying another company to clean the carpet in their two-story home. The middle of each room looked a little better. The strip along every wall did not, and the ends of every stair tread were as dark as the day the crew arrived. When the homeowner pointed it out, the answer was short: “We don’t clean the edges.”

They wanted a second opinion, and then a second cleaning. Anthony went out himself. Here is what we found and what we did about it, because the question behind this job comes up more than you might think: if you paid for a carpet cleaning, what exactly should have been cleaned?

What we found when we arrived

The stairs told the story first. Anthony ran a single pass across the center of one tread, about the width of the cleaning wand, and the contrast was immediate. The two ends of the tread, where the carpet meets the wall on one side and the railing on the other, were still dark. So was the nose, the rounded front edge of each step that takes the most foot traffic in the house. The previous crew had cleaned the middle of each step and stopped there.

Upstairs, the landing and the loft office looked evenly dull at first glance. It was only when our wand went across them that the real difference showed. In the photos below, the cleaned half is our work from that morning. The other half is the carpet as it was when we walked in.

Why some crews skip the edges

The center of a room is fast. A cleaning wand is about a foot wide and glides in long, straight strokes. The edges are slow. The wand has to be turned, pushed into the baseboard, and pulled back, and the last inch or two usually needs a separate, narrower tool. Stairs are slower still. Every tread is its own small job with two ends, a nose, and a riser.

A crew that is paid by how many jobs it finishes in a day has a reason to do the fast part and move on. Some companies are upfront about it and price edges and stairs as an add-on. Some only mention it after the homeowner asks. We think edges and stairs are simply part of cleaning a carpet, and we do not price them as a separate line item.

There is one honest reason carpet edges look dark that has nothing to do with the cleaner, and it is worth knowing so you can tell the difference. It is called filtration soiling. Air moves through the tiny gap between the carpet and the baseboard, and under closed doors, and the carpet acts as a filter. Over years it collects a thin, sharp black line right at the wall. That line is fine soot and dust bonded to the fibers, and it does not come out with a normal cleaning pass. It needs a dedicated treatment, and a good cleaner will point it out before starting rather than after.

Filtration lines look very different from what we found in this home. Filtration soiling is a narrow, dark line pressed tight against the wall. Skipped edges are a wide band of ordinary traffic soil, and the band stops exactly where the wand stopped.

How we cleaned it, edge to edge

We ran the same four-step process we use on every residential carpet cleaning, with the edges treated as part of the job rather than an afterthought.

The pre-spray went on across the entire carpet, all the way to the baseboard, so the soil along the wall had the same time to loosen as the soil in the middle of the room. Wand strokes ran into the wall and back on every pass. Along each baseboard and up each stair stringer, we followed with a narrow edging tool that reaches the last inch the wand cannot. On the stairs, each tread got its own full-width pass with a stair tool, then the nose, then the riser. We finished with dry passes so the carpet was ready to walk on in a few hours.

None of this is a secret technique. It is just the slow part of the job, done.

Stairs are the most-skipped carpet in the house

If there is one place to check after any carpet cleaning, it is the stairs. They take more time per square foot than any other carpet in the home, they carry the heaviest traffic, and they are the easiest place for a hurried crew to do a single pass down the center and call it finished.

When you book a carpet cleaning, ask whether the stairs are included in the price you were quoted, and whether that means the full tread, the nose, and the riser. If the answer is vague, the ends of your steps will probably look the way this homeowner’s did.

What a complete carpet cleaning should include

Whoever you hire, this is what the job should cover:

• Pre-treatment across the whole area, including the strip along every wall
• Wand strokes that reach the baseboard, not stop a few inches short
• An edging tool run along the baseboards and stair stringers
• Every stair tread, including both ends, the nose, and the riser
• Careful work around furniture legs and the edges of any furniture that stays in place
• Dry passes so the carpet is walkable the same day
• A walk-through with you before the crew leaves

Three questions worth asking before you book:

1. Do you clean all the way to the baseboard, or is that extra?
2. Are the stairs included in this price, including the ends of each step?
3. Will you walk the finished job with me before you leave?

We wrote a longer guide on how to choose a carpet cleaner in San Antonio that covers reviews, equipment, and insurance. Add these three questions to that list.

If you already paid someone else

If your carpet was cleaned recently and the edges still look dark, text us a photo at (210) 385-1038. We will tell you honestly whether it is skipped soil or filtration soiling, and what it would take to fix. Every cleaning we do is backed by our 10-day satisfaction guarantee: if a spot comes back, we come back, at no charge. You can find more answers on our carpet cleaning FAQ page.