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The BioSweep Guarantee, In Writing

If the smell comes back, so do we. Free.

Not a marketing promise. A written term on every qualifying job.

Call (630) 881-7145 Get a Free Estimate
13+
years operating
5.0
Google rating
30
reviews
Plain English terms

What the guarantee actually means

Every term written the way Grant explains it in person. No fine print, no loopholes.

✓
If the odor returns, we return, free.
If the smell comes back after treatment, we will return and retreat the property at no additional charge. This is not a credit or a discount. It is a full re-treatment at zero cost.
✓
The guarantee is in writing.
Every job comes with a written service agreement that includes the re-treatment guarantee. It is not a verbal promise. You have it on paper before the work begins.
✓
No proof required from you.
You do not need to document the odor return or prove anything. If you say the smell is back, we believe you. We will schedule the re-treatment without dispute.
!
What the guarantee does not cover (two exceptions).
1. Painted walls. If a space is painted before our treatment, the paint seals the odor into the wall. In these cases, we'll cut our price in half and still perform the treatment — but without the guarantee.

2. Pet urine without subfloor access. The urine-damaged carpet or floor must be removed so we can treat the exposed subfloor. Without that access, we'll cut our price in half — but without the guarantee.

In both cases, we are upfront with you on the phone before we ever schedule the job.
➤
Realtor listings: the guarantee transfers to the buyer.
If a realtor books the treatment for a listing, the guarantee transfers to the buyer at closing. The new homeowner can call us directly if the smell returns. No additional enrollment or paperwork required.
➤
How to invoke the guarantee.
Call us at (630) 881-7145 or email chicagoland@biosweep.com. Reference your original service date. We schedule re-treatments on the same priority as a standard booking. There is no formal claims process.
The record
Why we can make this promise
13+
years in business
5.0
Google rating
30
5-star reviews
9/10
jobs get full guarantee
The questions people ask before they believe us
Common objections, answered directly.
Every company "guarantees" their work. What makes yours different?
Most service guarantees mean a refund or a credit. The BioSweep guarantee means we come back and do the work again, at no charge. The difference is that a refund puts the problem back in your hands. A re-treatment solves it. That distinction matters more when you have a listing going live in three days.
Has anyone ever had to use the guarantee?
Yes, and we have no shame admitting that. We proudly stand behind our work and will treat a space until you are satisfied. It is rare to have to perform a re-treatment, but they do occasionally happen.
What if the smell comes back six months later?
The BIOSWEEP process eliminates the odor at the molecular level rather than masking it. Once the source molecules are neutralized, there is no mechanism for the same odor to return, unless a new odor source is introduced. If you smell something six months later and it is genuinely the same issue, call us. The guarantee has no stated expiration.
Is BIOSWEEP safe for kids and pets after the treatment?
Yes. BIOSWEEP leaves no chemical residue. Once the treatment period is complete and the property has been aired out, it is safe for children, pets, and adults with respiratory sensitivities.
Can I get the guarantee in writing before I commit?
Yes. The written service agreement including the re-treatment guarantee is provided before work begins. If you want to review the terms before scheduling, call and we will walk through them with you.

Certifications and affiliations

BIOSWEEP Certified
Official BIOSWEEP technology partner
Fully Insured
General liability, all treatment sites
For realtors, the guarantee transfers to the buyer

When a realtor books a BioSweep Treatment for a listing, the guarantee transfers to the buyer at closing. The new homeowner can call us directly if the smell returns, no involvement from you required. This is a concrete benefit you can cite in disclosure and in marketing the listing. "Professionally treated. Guaranteed results." is a verifiable claim that third-party sprays and ozone rentals cannot make.

See the realtor page →
Book with confidence.

If it does not work, we come back. That is not a sales pitch. It is a written term for every qualifying job.

Call (630) 881-7145 Get a free estimate
5.0 Google rating, 30 reviews Guarantee in writing before work begins Most jobs complete in less than 24 hours
Call BioSweep (630) 881-7145