Eliminating Severe Pet Urine Odor from Homes — Backed by a 5-Year Written Guarantee
Whether you've tried everything or already know the problem is beyond cleaning, this is where OdorXpert begins — structural pet urine odor remediation, backed by a five-year written guarantee.
If covered urine odor returns from an area where we completed qualifying Odor Encapsulator remediation, we come back and re-treat it — that's our commitment, for five years, in writing.
Slab and lower framing sealed with the Odor Encapsulator.
ASK.
If the odor comes back — who's coming back to fix it?
5Years
OdorXpert Written Guarantee
5 Years. In Writing.
If covered pet urine odor returns from a qualifying treated area within five years, we return and re-treat the affected surface at no charge, subject to the written guarantee terms.
Coverage applies to qualifying Odor Encapsulator structural remediation completed according to the recommended scope incorporated into your written agreement.
Transferable on jobs performed for the purpose of a sale.
Before you spend another dollar on that smell — ask.
Pet urine odor is a business full of confident answers. A contractor who'll floor right over it. A product that promises a weekend fix. A machine that makes the air smell clean for a week. Most of them aren't lying to you — they're answering for the part of the problem they can see. But the urine you're smelling isn't on the surface anymore. After months or years, it's soaked into the subfloor, the concrete, the framing — below everything anyone wants to sell you.
So before you hire anyone or buy anything else, ask the one question that cuts through all of it: “What are you actually treating — and what will you put in writing?”
When you're shopping for odor removal, comparing prices makes sense — as long as you're comparing the same thing.
Two ozone treatments? Compare prices. Two enzyme treatments? Compare prices. For the right odor problem, either method may be appropriate.
But comparing prices across completely different methods doesn't tell you which one will actually solve the problem in your home. An inexpensive ozone treatment and a more expensive one may both leave urine contamination beneath your flooring — paying more doesn't guarantee a better result.
So how do you compare companies offering completely different solutions? Ask every provider the same question:
“What guarantee do you provide, what exactly does it cover, and how long does it last?”
Now you're comparing something that matters beyond price. A written guarantee tells you what a company is willing to stand behind. Its duration, coverage, exclusions, and remedies tell you what protection you're actually buying.
A guarantee alone can't prove a treatment will work — but it gives you a meaningful way to weigh the promises behind different methods.
Comparing price
Same method
Compare what’s included and what it costs.
Comparing protection
Different methods
Compare written coverage, duration, exclusions and remedies.
One question. Every provider.
“What will you put in writing?”
Compare prices when you're buying the same service. Compare written guarantees when you're weighing different solutions.
At OdorXpert, we put a five-year written guarantee on the qualifying Odor Encapsulator structural remediation we complete to your inspection's recommended scope and written agreement.
Price tells you what you're paying. The written guarantee tells you what protection you're getting.
Ask your contractor
Beautiful New Floors. Same Old Urine Smell.
A contractor builds — and a good one builds beautifully. But new flooring, fresh drywall, and a coat of primer don't remove urine. They hide it. The salts are still down in the subfloor and the slab, and they don't stay quiet: the first humid week, the first time the heat comes on, they pull moisture out of the air and the smell works its way back up — now through $20,000 of new floor.
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Are you removing the urine contamination, or building over it?
Our answer: We inspect first, find the source, expose and remove contaminated material where it's needed, prep the structure, and seal qualifying surfaces with our Odor Encapsulator — before a single new board goes down. Build once. Build over clean.
Carpet and pad removed: the subfloor is where the urine went.
Ask for proof
Have You Ever Seen a House This Bad? We Have.
You think your house is the worst anyone's walked into. It isn't. We've opened up homes with twenty and thirty years of urine in the subfloor and framing — multi-cat houses, whole rooms, contamination most people would call a teardown. We've specialized in structural pet urine remediation since 2000. The photos on this page are our jobs: exposed contamination, and the treated structure that replaced it.
Exposed: urine soaked into the subfloorTreated: subfloor and framing sealed
Opened to the studs: remediation reaches the structure.
Real OdorXpert job photos, from different jobs.
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Can you show me a house as bad as mine — and what it looked like when you were done?
Reviews tell you what customers experienced. The written guarantee is what we contractually stand behind. You should have both.
Ask before trying another DIY treatment
Enzyme Cleaners Work for Many People.
On a fresh accident, a quick treatment can be all you need, and if a routine keeps things livable day to day, that's fine.
This section is for a different moment: you're buying a home, selling one, replacing the flooring — or turning a rental unit.
Repeated surface treatment can — depending on materials and conditions — work urine deeper: into the pad, the subfloor, the concrete, while the floor still looks fine on top.
You find out when the carpet comes up, new flooring goes down, or a buyer's inspection finds it. Then it isn't a cleaning question. It's a structural one.
For property managers and landlords, the trap has a sound: the phone ringing.
The unit is cleaned for turnover, smells fine, a new tenant signs — and weeks later they're calling about urine everyone thought was gone. Now the flooring comes up on the tenant's timeline, not yours. Catching it before the turn is cheaper — and a lot quieter.
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If I've been treating this for a while, what's actually happening under my floor?
We investigate where the urine really went — past the surface, into the structure — and recommend remediation based on what we find. We start where carpet cleaners stop.
Real case · San Fernando Valley
100 Bottles. Over $3,500. The Urine Odor Was Still There.
We inspected a San Fernando Valley home where the owner had gone through about a hundred bottles of enzyme product — over $3,500 — before he called us. The house still carried the urine odor, alongside the product's fragrance. He didn't do anything wrong; repeated surface treatment simply couldn't resolve what had soaked into the structure. Sometimes the next step isn't another bottle. It's finding out where the urine went.
Before you add more moisture, ask where that moisture is going. Repeated wet treatments can spread urine into areas that were dry before — worth knowing before you invest in new floors over it.
We don't come out to make your house smell good. We come out to get rid of what's making it smell bad.
Odor behaves in ways that confuse homeowners. Here's what it's actually telling you.
ASKA
Ozone, fogging & "whole-house" treatments
Will this reach the contaminated material — or just the air?
Ozone, fogging, hydroxyl, and chlorine dioxide work on the air and the surfaces they reach, so the house smells clean for a few days. If urine is soaked into subfloor, concrete, or framing, the source stays — and the smell returns once the treatment clears. We don't treat the air — we treat the structure. Already tried one and the odor came back? That's often when people call us.
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The smell comes back
Why do I smell it again when it rains or the heat comes on?
Urine salts are hygroscopic — they pull moisture out of the air. Heat and humidity reactivate them. That's why a smell you thought was gone returns on a wet day or when the furnace kicks on. If it comes back, it never left — it was just dry.
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Nose blindness
Is it actually gone, or did I just get used to it?
Live with an odor long enough and your nose stops reporting it. Your guests' noses don't. Neither does a buyer's on a walkthrough. An outside inspection tells you what your own nose can't anymore.
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Verify what AI tells you
Is this general advice — or advice for my house? And will you guarantee it works?
AI is a great place to start, and we use it too. It can explain products, compare treatments, and get you to the right questions fast. Just remember what it's working from: general information — not a look at your carpet, the plywood underneath, or where the urine actually went in your home. So verify it, and ask the one question that matters most: Do you guarantee this treatment will get rid of the odor? It won't — it can't. It's giving you information, not a warranty, and for a severe case it will tell you to call a professional. A general “use an enzyme cleaner” can be right for a fresh accident and still miss years of structural saturation. For a structural odor problem, the way to verify is a physical inspection that finds where the urine actually went. Use AI to get informed — then come to the company that puts its answer in writing, for five years.
Every one of these is a reason to find the source before you spend another dollar. That's what our inspection does — and completing its recommended scope is what qualifies the work for our five-year written guarantee.
Was the odor actually remediated, and is there documentation?
A fresh coat of paint and a sale deadline hide a lot. If the source is still in the structure, it becomes your problem after closing — and your cost.
Before you sell — ask:
Can we show a buyer exactly what was treated and what the written guarantee covers?
Documentation closes doubt. When the work is done for a sale, you can hand a buyer the completed scope and a transferable written guarantee — the question answered before they ask it.
Concrete sealed and documented before the next owner moves in.
Our answer: We inspect, document the scope, treat qualifying surfaces, and put the five-year guarantee in writing. On sale-purpose jobs, that written guarantee transfers to the buyer.
We stand behind our work because we believe in the work we do. No two homes have the same level of odor, so we start with a professional pet odor inspection and build a recommended plan for your surfaces and your level of contamination.
Some homes need targeted treatment of specific structural materials. Others need exposure, removal, prep, and treatment down to the studs.
The difference isn't whether the job needs cleaning — it's how much of the structure needs remediation.
When that recommended Odor Encapsulator remediation is completed as written into your agreement, it's backed by our five-year written guarantee.
Our goal isn't just to finish a job — it's to leave you satisfied with the result.
Your home, your budget, your call.
Full recommended plan: carries the five-year written guarantee.
A reduced scope you choose: we can still do the work, but it may affect guarantee eligibility. We'll confirm in your written agreement, before we start, whether any guarantee applies.
Beyond what we proposed: additional qualifying Odor Encapsulator work is covered under the five-year guarantee too.
The specifics
What it covers
The qualifying Odor Encapsulator structural remediation we complete to your inspection's recommended scope and written agreement (including our hardwood clear-coat system).
The remedy
If covered odor returns within the five-year term, we come back and re-treat the affected surface at no charge. That re-treatment is the remedy; it doesn't include removing or replacing flooring, drywall, or finishes installed over a treated area, reconstruction, or — on distant jobs — certain travel. We leave the structure prepped for your contractor, and your written agreement defines exactly what's included.
The term
Five years from completion.
What's not covered
New accidents, areas we didn’t treat, materials never exposed for treatment, and work performed by others during reconstruction.
Transfer
On jobs done for the purpose of a sale, the written guarantee transfers to the buyer.
In writing
A binding written agreement you keep.
Guarantee coverage and re-treatment are subject to the terms of your written agreement.
ASK.
If covered odor ever comes back — who's coming back to fix it?
Our answer: We are — we re-treat the covered surface at no charge, within the five-year term. That's our word.
Everything here is a summary. The full scope, exclusions, and transfer terms are in your written agreement.
Guarantee questions
What qualifies for OdorXpert's 5-year written guarantee?
When the Odor Encapsulator remediation we recommend during your pet odor inspection is completed as written into your agreement, it's covered by the five-year written guarantee. The guarantee follows the completed recommended work — that's what lets us stand behind it for five years.
Is there a company that guarantees pet urine odor removal?
Yes. OdorXpert backs qualifying structural pet urine odor remediation with a five-year written guarantee. Ask the next company you call to put the same in writing.
Does OdorXpert offer a five-year written guarantee?
Yes — a binding written agreement, five years from completion, on the qualifying Odor Encapsulator remediation we complete per your inspection's recommendations.
What if I choose a different treatment than the one you recommend?
We understand that homeowners have different needs and budgets. We can discuss alternative or limited treatments, but our five-year written guarantee applies to qualifying Odor Encapsulator remediation performed according to the inspector's recommended scope and your written agreement. We'll explain any difference in coverage before work begins — and if you choose to do more than we recommend, that additional qualifying Odor Encapsulator work is covered too.
What does the guarantee cover?
The return of the covered pet urine odor from the qualifying Odor Encapsulator remediation we completed. It does not cover new accidents or untreated areas.
What happens if the odor comes back?
So do we. If it's covered odor from qualifying work and you're within five years, we come back and re-treat it at no charge.
Is the guarantee transferable?
On jobs performed for the purpose of a sale, yes — the written guarantee transfers to the buyer.
Does it cover subfloors, concrete, framing, or treated hardwood?
Yes — those are the structural surfaces we treat under the recommended scope. Coverage follows the completed work and your written agreement.
Comparing companies
What should I ask before hiring an odor remediation company?
Three questions: Are you treating the source or the surface? Can you show me a job as bad as mine? And what will you put in writing, and for how long?
Why do some companies offer different guarantees?
A guarantee depends on method. If a treatment only addresses the surface, odor can return — so a long written guarantee would be a losing bet. We guarantee ours because we remove and seal the source.
How can I verify experience with decades of urine damage?
Ask to see comparable jobs and read independent reviews. We've specialized in structural pet urine remediation since 2000 — over 25 years.
Can I request references from comparable jobs?
Yes, with customer permission.
How is a product money-back guarantee different from OdorXpert's written remediation guarantee?
A product's money-back guarantee typically offers a refund of the product's purchase price under its stated terms. It doesn't necessarily guarantee that contamination inside your floor or walls has been resolved.
OdorXpert's guarantee is different. We provide a five-year written guarantee on qualifying structural odor remediation completed according to the recommended scope incorporated into your written agreement.
If a covered urine odor returns from a qualifying treated area during the guarantee period, we return and re-treat that area at no charge, subject to the written guarantee terms.
One protects a product purchase. The other provides a defined remedy for covered remediation work. The important question isn't just how long a guarantee lasts — it's what the company actually puts in writing.
Product & recurring-odor questions
Do enzyme cleaners work on pet urine odor?
For many homeowners, yes — especially on fresh, surface-level accidents. OdorXpert is for the other situation: when a spot has been treated repeatedly, moisture can — depending on the materials and conditions — carry urine deeper into padding, subfloor, or concrete while the surface still looks fine. It surfaces most when you're buying, selling, or replacing flooring. That's where we start.
Do you use ozone or fogging to remove the odor?
No. Ozone, fogging, hydroxyl, and chlorine dioxide treat the air and the surfaces they can reach — not urine soaked into subfloor, concrete, or framing. We treat the structure itself, which is what the five-year guarantee is built on. If one was already tried and the odor returned, that's a common reason people call us.
Can urine odor return after new flooring is installed?
Yes — if the source in the subfloor or slab was never removed. Heat and moisture reactivate urine salts and the smell returns up through the new floor.
Can severe cat urine contamination be remediated?
Yes. Severe, multi-year, multi-cat contamination is our specialty — source removal and structural treatment, backed in writing.
Can AI (like ChatGPT) recommend the best way to remove severe cat urine odor without inspecting my home?
AI is a useful starting point, but it's working from general information — not a look at your floors, walls, or subfloor. Ask it the key question: 'Do you guarantee this will work?' It can't — it offers information, not a warranty, and for severe contamination it will point you to a professional. The way to verify a structural odor problem is a physical inspection — and we stand behind the result in writing, for five years.
Can carpet cleaning remove years of cat or dog urine odor?
Carpet cleaning is designed to clean carpet. For a recent accident that hasn't penetrated deeply, professional cleaning may be enough. But after repeated accidents over months or years, cat and dog urine can soak through the carpet and pad into the subfloor, concrete, and adjoining structural materials. Cleaning the carpet can't reach contamination that's already in those materials, so odors return — especially as humidity and temperature change.
By the time homeowners call us, saving the carpet usually isn't the goal — the carpet is coming out. Our work starts with removing the carpet and pad to reach the subfloor, locate the contamination, and remediate the structure underneath. We don't clean carpet to preserve it; we remove it to get to the source. That's where we start.
Should urine contamination be addressed before remodeling or installing new flooring?
Absolutely. Our Monrovia, California project shows exactly why.
The homeowner had invested approximately $35,000 in remodeling, including new flooring, carpeting, baseboards, and other improvements. According to the homeowner, the contractor had already pressure-washed the concrete, applied cleaning products and enzymes, and used oil-based primer before installing the new finishes.
But the cat urine odor remained.
Our inspection identified cat spray and urine contamination in multiple areas, including walls, door jambs, and materials concealed by the renovation. In some locations, cat spray was detected several feet above the floor.
To access and remediate the affected materials, portions of the newly completed renovations had to be removed.
Don't pay to remodel twice. Identify and address urine contamination before covering it with new finishes.
Read our Monrovia case study to see the inspection findings, demolition photographs, and structural remediation process.
Hiring & availability
Is there a guaranteed urine odor remediation company near me?
OdorXpert serves all of California and travels for severe jobs. Call 877-386-3677 to check availability in your area.
Does OdorXpert travel to my county or state?
We cover all 58 California counties, plus Arizona, Utah, and Nevada, and schedule severe long-distance jobs case by case.
Can I get an inspection before buying a home?
Yes — a pre-purchase inspection is one of the most valuable things we do.
Still Have Questions? Speak With an Odor Specialist.
You've Asked the Questions. Now Ask Who Will Stand Behind the Work.
You know what to look for now. Find the source — not the surface. See a job as bad as yours. Read real reviews. And get the commitment in writing. Ask every company you're considering to do the same, and compare what comes back.
ASK.Five years from now, who's still standing behind this work?
Have a Severe Urine Odor Problem? Tell Us Where You Are.
We serve all 58 California counties, plus Arizona, Utah, and Nevada, with long-distance projects scheduled case by case. We're a mobile crew and may already be working in your area, so call us to discuss availability and scheduling.
A phone quote is free. A detailed on-site odor inspection is a paid, documented diagnosis.
