If you've been searching for Persian rug cleaning in Boulder — or Persian rug cleaning near me — we want to show you something.

This Persian Tabriz just came through our door. Silk on silk. Crimson field. An all-over garden composition populated with birds, animals, flowering vines, and botanical forms of extraordinary detail and intricacy. Deep navy border. Ivory guard borders framing it on both sides.

It is one of the most remarkable pieces we've had on our wash floor in recent memory.

And cleaning it required everything we know.

What This Rug Is

This is a Persian Tabriz — woven in Tabriz, the capital of East Azerbaijan province in northwestern Iran, one of the oldest and most celebrated rug weaving cities in the world. Tabriz has one of the most diverse displays of designs, from medallion, Herati/Mahi, to figural, pictorial, and even three-dimensional shaped rugs. Wikipedia

But this piece belongs to a specific and extraordinary category within the Tabriz tradition: silk on silk. Silk pile on a silk foundation. Made with natural silk, these are the most delicate, shiny, and expensive types of Tabriz rug — typically used more as wall hangings or collector's items than everyday floor rugs. Persis Collection

The design is a pictorial garden composition — an all-over field of intertwining flowering vines, inhabited by birds and animals rendered with the kind of detail that only silk pile at high knot density makes possible. The most favorite topics for Tabriz subject carpets were those of hunting and animals, literature plots, and religious themes — depicted in a style that reminds you of the miniatures by the painters of the celebrated Tabriz school flourishing at the time of the Safavids. Wikipedia

Look at the field of this rug in the close-up photographs. Cranes in flight. Peacocks among flowering branches. Animals moving through a garden that has no beginning and no end — an all-over composition that fills the crimson field from edge to edge with living forms, none of them repeated exactly, each one drawn with the precision that only a master weaver working from a detailed cartoon can achieve.

Silk Tabriz rugs, crafted entirely or partially with silk, are renowned for their luxurious feel and intricate designs. With high knot densities, these rugs achieve unparalleled detail and precision, making them prized centerpieces for sophisticated interiors. Jewel Rugs

Why Silk on Silk Is the Most Demanding Rug We Clean

Every rug that comes through our door at Expert Rug Cleaning gets assessed individually before any water touches it. But a silk on silk Tabriz demands a level of care that sits at the very top of everything we do.

Here's why.

Silk is not wool. The fiber behaves completely differently under cleaning conditions — it responds to pH, temperature, and mechanical agitation in ways that wool does not, and the margin for error is essentially zero. What wool forgives, silk remembers.

pH sensitivity. Silk is a protein fiber with an extremely narrow safe pH range for cleaning. Alkaline solutions — the kind used in most carpet cleaning and many general-purpose rug cleaning processes — damage silk at the molecular level, breaking down the protein structure of the fiber and causing irreversible loss of luster and tensile strength. We use only pH-neutral solutions specifically formulated for silk cleaning. Nothing else touches this rug.

Temperature sensitivity. Excessive heat causes silk fibers to weaken, shrink, and lose their characteristic luster. Every step of the cleaning process — wash water temperature, drying conditions, any heat used in the process — must be carefully controlled. A silk rug dried with heat loses something it can never get back.

The silk foundation. This rug is silk on silk — meaning the foundation itself, the warp and weft threads on which every knot was tied, is also silk. A silk foundation is far more sensitive to saturation and mechanical stress than a cotton or wool foundation. Washing must be flat, gentle, and carefully managed to prevent any distortion of the foundation structure during the wash.

The dye complexity. A pictorial Tabriz of this quality carries an enormous range of colors — crimson field, deep navy, ivory, gold, teal, rose, brown, black. Each color must be tested for dye stability before the wash begins. Silk accepts dye differently than wool, and some colors in older silk rugs can be more sensitive to moisture than their wool equivalents. We tested every color in this field before we started.

Knot density. Some Tabriz rugs boast up to 700 knots per square inch. A silk on silk Tabriz at high knot density holds cleaning solution deep in an extraordinarily dense pile — requiring careful, thorough rinsing to remove all chemistry without over-saturating the silk foundation. Persis Collection

What We Did

Flat on our wash floor. pH-neutral chemistry formulated specifically for silk. Gentle hand washing — no aggressive agitation, no mechanical stress on the foundation. Careful, thorough rinsing until the water ran completely clear.

Then controlled drying — flat, in managed conditions, away from any heat source, monitored continuously. Silk foundation rugs must dry flat and must dry completely. Any moisture remaining in a silk foundation creates conditions for fiber degradation that no subsequent treatment will reverse.

The colors on this rug as it dried were extraordinary. That crimson field — the depth and warmth of it in the silk pile is something photographs can only approximate. The navy border. The ivory guard borders with their scrolling arabesque detail. The birds and animals emerging from the flowering field as the cleaning solution lifted decades of accumulated soil from the pile.

This is what professional Persian rug cleaning looks like on the most demanding piece we clean.

Why This Rug Cannot Go to a Carpet Cleaner

We say this about every hand-knotted wool rug. For a silk on silk Tabriz, it bears repeating with more emphasis.

A truck-mounted steam cleaner operates at high water temperature and high alkalinity — the exact combination most damaging to silk fiber. A single in-home cleaning of a silk rug with standard carpet cleaning equipment can permanently alter the luster of the silk, weaken the foundation, and cause dye migration across a color palette this complex.

We have seen the results. A silk rug that has been steam cleaned in place rarely recovers its original character. The luster is diminished. The colors flatten. The foundation may distort as it dries unevenly. The damage is visible immediately and permanent.

If you have a silk or silk-blend Persian rug — bring it to a specialist. Not because we want your business. Because the alternative is a rug that never fully recovers from what was done to it.

Professional Persian Rug Cleaning in Boulder

At Expert Rug Cleaning, we handle Persian rugs across the full spectrum — from robust tribal wool pieces to the most delicate silk on silk Tabriz. Every piece gets individual assessment, appropriate chemistry, proper washing, and controlled drying.

If you've been searching for Persian rug cleaning in Boulder or Persian rug cleaning near me — we are here.