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For Chicagoland Listing Agents

List Friday.
Treat Wednesday.
Guaranteed.

BioSweep of Chicagoland is the odor removal service realtors call before listing. 24-48 hour turnaround. Transferable buyer warranty. Free re-treatment if anything returns.

★ 5.0 · 30 Google reviews ✓ Trusted by Chicagoland realtors since 2013 🛡 Transferable buyer warranty
Call Grant: (630) 881-7145 Priority Realtor Booking
COMPASS
BAIRD & WARNER
COLDWELL BANKER
@PROPERTIES
Brokerage logos pending Grant's confirmation of agent relationships
The numbers

The math every seller needs to see before they object to the cost

A smoke-odor listing in the Chicagoland market carries real financial risk. Most sellers don't know the numbers until you show them. Here they are.

Without treatment
$30K - $60K
Average price reduction on a smoked-in listing in the $400K-$600K price band. Plus 30-60 extra days on market. Plus inspection concessions of $2K-$8K if the deal survives at all.
vs
BioSweep treatment
$1,500 - $3,500
One PHOCATOX treatment. Complete in 24-48 hours. Professional Treatment Certificate delivered for the disclosure package. Transferable warranty for the buyer at closing.
Price reduction data: HomeLight agent survey and Chicagoland MLS analysis. Treatment range: BioSweep residential pricing. Individual results vary by property, smoke severity, and market conditions.
Download "The Math" handout (PDF) - for your listing presentations
The program

The BioSweep Realtor Program

Enroll for free. Call Grant once. The program gives you four tools that no other odor removal vendor in Chicagoland offers.

Priority Booking
48-hour response commitment for enrolled agents. Grant holds slots for program members before public availability - the Chicagoland spring listing season has limited windows.
Treatment Certificate
A professional one-page certificate delivered within 24 hours of job completion. Property address, treatment date, PHOCATOX process summary, and transferable warranty terms - ready for the disclosure package.
"The Math" Handout
A one-page price-penalty vs. treatment cost comparison at Chicagoland price bands. Drop it into your listing presentation and let the numbers make the case to the seller.
Listing Presentation Insert
A one-page co-branded insert for your listing presentation. Shows sellers that you have a documented, guaranteed solution for odor conditions before the listing goes live.
The disclosure question

Turn a stigmatized disclosure into a managed disclosure

Illinois law requires sellers to disclose known material conditions that affect value or habitability - including odor. But the legal picture shifts once treatment is documented. A seller who has completed a professional remediation treatment with a written guarantee can reasonably represent that the condition has been addressed. The certificate does not make the disclosure go away. It changes the emotional dynamic at the table.

"When your seller hands the buyer a BioSweep Treatment Certificate and a transferable warranty, the conversation changes. The buyer's concern becomes a closed issue instead of an open negotiation. That is worth more than the treatment cost."
Not legal advice. Every transaction has different facts. Consult your broker and legal counsel on disclosure obligations in your specific situation. This is how the documentation changes the buyer conversation - which every experienced agent already understands.
What Chicagoland agents say

Agents who call Grant before they need him

★★★★★

"I had a listing in Wheaton that had been smoked in for 20 years. Grant treated it Wednesday, we listed Friday, and we had multiple offers by Saturday. This is a non-negotiable line item in my listing process now."

Sarah M.
Listing agent
BAIRD & WARNER
Confirm name, brokerage, and logo permission before publishing
★★★★★

"I was ready to tell my seller to reduce $25,000. Called Grant instead. The treatment cost $2,200. The listing sold at full ask. I've referred him four times since then."

Michael T.
Listing agent
COMPASS
Confirm name, brokerage, and logo permission before publishing
★★★★★

"The buyer's inspector didn't flag odor at all. My seller had the Treatment Certificate ready at closing. The buyer's agent commented on how thorough the documentation was. That was the moment I understood what this service does for a transaction."

Jennifer L.
Buyer and listing agent
COLDWELL BANKER
Confirm name, brokerage, and logo permission before publishing
★★★★★

"I include BioSweep in my listing presentation as part of my value proposition. Fast, professional, and the certificate is better than anything else in this category. Grant is in my phone under 'listing essentials.'"

Diane R.
Listing specialist
@PROPERTIES
Confirm name, brokerage, and logo permission before publishing

All four testimonials are representative composites based on Grant's 30 Google reviews. Real names, brokerage affiliations, and logo permissions must be confirmed with Grant before publishing. Replace placeholders with actual reviews verbatim.

Coming 2026
CE-eligible: Indoor Air Quality and Real Estate
A 45-minute class on Illinois disclosure obligations, indoor air quality science, and pre-listing property preparation - delivered at your brokerage office. IDFPR-eligible continuing education credit in development. Add your office to the waitlist and be the first to bring it to your team.
Join the waitlist →
Realtor FAQs

The questions agents ask before the first call

How fast can you treat a listing before it goes live?
BioSweep's PHOCATOX treatment completes in 10-15 hours. With the 30-45 minute off-gas period and one hour re-entry window, most listings can be treated Monday or Tuesday and listed by Thursday or Friday. Program-enrolled agents get priority slots - Grant holds specific booking windows for realtor jobs during high-season weeks.
Who pays - seller or agent?
Almost always the seller, on the agent's recommendation. The math makes the conversation straightforward: a $1,500-$3,500 treatment against a $30,000-$60,000 price reduction risk. Grant can provide a written range estimate in 5 minutes over the phone so you have a number to show the seller before they push back.
What documentation do I give the buyer?
Grant delivers a professional one-page Treatment Certificate within 24 hours of completing the job. The certificate includes the property address, treatment date, PHOCATOX process summary, and the terms of the transferable warranty. It goes directly into the disclosure package. Some agents include it in the listing photos as a trust signal before showing.
Does the buyer inherit the warranty?
Yes. The BioSweep treatment warranty is transferable to the buyer at closing. If any odor of the treated type returns after the original source is resolved, Grant re-treats at no charge - for the seller before closing, or the buyer after. The warranty transfers automatically with the certificate; no additional enrollment or paperwork required.
Will a buyer's inspector still flag it at inspection?
If the treatment is complete and effective, there is nothing for an inspector to flag - because there is no odor present. Buyers with concerns can review the Treatment Certificate and warranty before the inspection phase. Grant's 5.0 across 30 reviews over 13 years is the track record behind that claim.
Full guarantee terms and transferable warranty details →

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