We Find Out How Deep It Went Before We Quote
Pet odor removal in Medford starts with finding how deep the urine went. We inspect with UV light, tell you whether it reached the fibers, the pad, or the subfloor, and price by what we find.
This is the single most common question we get, and the answer surprises people.
Cleaning can make it worse before it gets better, and that is chemistry rather than a mistake.
Urine has four parts. Urea feeds bacteria, which turn it into ammonia and mercaptans. That is the sharp smell. Urochrome is the yellow pigment. Pheromones tell the animal to go there again. And uric acid, which is the real problem.
As urine dries, uric acid forms crystals that lock onto fibers, backing, and pad. They are not water soluble. Shampoo does not touch them. Steam does not touch them.
Then moisture wakes them up. Any cleaning that adds water reactivates crystals that were sitting quietly, so the room smells worse the day after than it did before.
The cleaner did not make a mess of it. They added water to a problem that was never removed.
Urine travels down. Depending on volume and how long it sat, it moves through the face fibers, into the backing, through the pad, and into the subfloor. That is two to four inches of contamination, and no spray reaches it.
Depth decides the treatment and the price. No single method fits every job.
| Level | Where it is | What it takes | Typical price |
|---|---|---|---|
| 1. Fibers only | Fresh or light accidents | Enzyme pre spray with dwell, hot water extraction | $120 to $180 |
| 2. Backing and pad | Repeat accidents, older spots | Enzyme flood to pad depth, sub surface extraction, forced drying | $200 to $450 |
| 3. Subfloor | Long term, usually cats | Carpet lifted, pad replaced, subfloor treated and sealed | $450 to $900 |
Nationally, pet odor removal averages around $350, with most jobs between $100 and $700 and severe whole house cases higher.
Your number comes after the UV inspection, not before. Anyone quoting pet urine over the phone without seeing it is guessing.
We walk the room in the dark with a UV lamp. Urine fluoresces. Two things come out of that walk, and both matter.
A customer points at one spot near the door. The lamp shows eleven, along the baseboard, under the sofa, and down the hallway. Normal, especially with cats, because animals return to the same area.
Older deposits glow differently from fresh ones, and heavy saturation blooms wide rather than showing as a spot. That tells us the level before we touch anything.
We add a moisture meter where saturation is suspected, since a wet pad reads long after the surface feels dry.
Worth knowing before you book, because it changes what is realistic.
Cats concentrate their urine more than dogs. Same volume, more urea and more uric acid, so more crystal per accident.
Cats also repeat. A dog accident is usually about not getting outside in time. Cat marking is territorial and scent driven, so the same square foot gets hit for months.
Dog urine causes bigger wet spots and more moisture damage. Cat urine causes the odor that will not go away, and is far more likely to reach level three.
Urine passes between boards onto the subfloor. Refinishing the surface does not fix it, so boards usually come up in the affected area.
Plywood and OSB absorb and hold urine. We treat directly and seal before anything goes back down.
The foam core holds it, not the fabric. Cleaning the cover does nothing.
Porous and absorbs deeply. Different chemistry, and usually a sealer afterward.
Male cats spray upward. If a room still smells after the floor is done, check the wall at spray height.
Homeowners try these first, and all of them are in the Reddit threads for a reason.
Absorbs surface odor, does nothing to uric acid crystals.
Swaps ammonia for a different smell. The crystals stay.
Heat can set the protein and pigment permanently, and a rental machine cannot extract the water it puts down, so contamination gets pushed deeper into the pad.
They work, but only at the depth they reach. Sprayed on the surface, they treat the surface.
Fragrance covers. Ozone handles airborne molecules but leaves the source in the floor.
The pattern is always the same. If the odor returns once the carpet dries, the source was never removed.
Room by room, in the dark, every spot marked.
You see the map and hear the level and the cost before anything is applied.
Enough volume to reach where the urine reached. At pad level that means flooding, not spraying. Enzymes are live biological agents that consume uric acid crystals rather than covering them.
Forty five minutes minimum, longer on heavy contamination. A cleaner who sprays and extracts straight away has wasted the product.
A sub surface tool pulls contamination up through the backing and pad instead of skimming the face fibers. A standard wand cannot do this.
Air movers on every urine job, because a damp pad restarts the problem.
UV again once dry. Anything still showing gets treated on the same visit.
For level three we lift the carpet, remove and replace the affected pad, treat the subfloor directly with a longer dwell, seal it, then relay and treat the carpet.
Some jobs are past treatment and you should hear that before you pay.
Treatable, but replacing the pad usually costs less than treating it twice.
When a subfloor has taken repeated saturation over years, treatment reduces the smell rather than ending it. We give you the honest range instead of promising all of it.
If the pile is crushed and the backing separating, urine treatment is wasted money. Replace it and let us treat the subfloor before the new carpet goes down. That costs less and works better.
There is no charge for the inspection that tells you this. Pet odor removal is one of several services we run — see the full range on our Medford carpet cleaning home page.
What we find. A family home, one dog, accidents from a couple of years back that were cleaned at the time. Nothing noticeable all summer. The first cold week the furnace runs, the hallway smells like ammonia.
Why it happens. Crystals sit dormant and reactivate with moisture and warmth. Medford summers are dry enough to keep them quiet. Then the furnace runs, warm air moves through the pile, and everything in the pad wakes up.
What we do. UV map first, because the owner usually only knows about half the spots. Enzyme to pad depth on everything the lamp shows, full dwell, sub surface extraction, air movers.
Typical cost. $200 to $350 for a hallway and one room.
What we find. A homeowner preparing to sell, two or three cats over eight or ten years, and a realtor who has told them the house smells. UV usually shows contamination along one wall, behind furniture, and in a closet nobody checked.
Why it matters. Buyers notice pet odor in the first ten seconds and it affects offers. This is the job people leave too late.
What we do. Full UV walk of every carpeted room. Most land at level two, some at level three under litter box areas. Where the subfloor is involved we lift, treat, seal, and relay.
Typical cost. $400 to $900. Still a fraction of what an odor complaint costs at the negotiating table.
What we find. A landlord with a unit that smelled fine at walkthrough and does not now, or a tenant who needs a receipt showing the carpet was professionally treated.
Why it is different. This job needs documentation as much as cleaning. UV photos before and after, an itemized invoice listing areas and chemistry, and a written assessment if the carpet is beyond saving.
What we do. UV map photographed, enzyme to depth, sub surface extraction, forced drying, UV re-check photographed. Both sets go with the invoice.
Typical cost. $250 to $500 for a standard two bedroom, plus pad work if the subfloor is involved.
$120 to $180 for surface level, $200 to $450 when it reached the pad, and $450 to $900 when the subfloor needs treating. The UV inspection that decides which one you have is free.
UV inspection to find every deposit, enzyme at the depth the urine reached, a real dwell period, then sub surface extraction. Retail products fail on reach and dwell, not chemistry.
No. Uric acid crystals do not break down over time. They stay dormant and reactivate whenever humidity or heat rises.
Cat urine is more concentrated than dog urine, so each accident leaves more uric acid behind. Cats also return to the same spot, so contamination builds in one area until it reaches the pad or subfloor.
Their published terms offer a deodorizer and do not guarantee urine odor removal, which is a fair position for standard extraction. Ask any company whether they inspect with UV before quoting. If they do not, they are estimating blind.
Water reactivated crystals that were sitting dormant. The smell was always there, and moisture released it. It needs enzyme at the right depth and proper extraction, not more shampoo.
Usually yes at levels one and two. At level three it depends how long the subfloor has been contaminated.
Long term cat urine that reached the subfloor. Everything else is easier.
Yes. Hardwood usually needs boards lifted. Concrete needs different chemistry and a sealer.
Yes. Enzymes are biological, not solvent based. Everything goes back once dry.
Same day and next day openings most weeks. You get the price before we start and it does not move.
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