GreenFiber Home Energy Audit in Chicago: What to Know First
We provide independent home energy audits for Chicago homes insulated with GreenFiber cellulose products, with most audits completed in two to three hours and a full written report delivered before we leave the driveway. A complete audit, including blower-door testing and thermal imaging, runs between $395 and $695 depending on square footage and whether duct leakage testing is added. We’re an independent GreenFiber service provider, not a manufacturer-authorized contractor, which means our findings are based on what the house tells us, not what a warranty department wants to hear. Call (218) 261-7714 to schedule. This page is written for GreenFiber owners in Chicago who want to know whether their insulation is actually doing the job they paid for.
Key Takeaways
- Home energy audits in Chicago on GreenFiber-insulated homes typically run $395-$695, with the full written report included.
- GreenFiber cellulose settles over time, and Chicago’s freeze-thaw cycles accelerate the problem in attics that were under-densified at installation.
- We run a blower-door test on every audit before recommending any insulation work, so you get a documented ACH50 number, not an estimate.
- Every audit closes with a printed report: pre-audit findings, thermal images, air-sealing locations, and a written price for any work we recommend.
How GreenFiber Products Fail - and How We Fix Them
GreenFiber’s cellulose insulation is a solid product when installed at the right density and protected from moisture. But we’ve been inside enough Chicago attics and walls to know where it goes wrong, and the failure modes are consistent enough to name.
- GreenFiber Cellulose (standard blown-in) settles in attics within three to five years. We regularly find R-38 attics that have settled to R-28 or less, especially in older Chicago frames where the ceiling joist bays are deeper than the installer assumed. The fix is a density check and a top-off, but only after air sealing is complete. Blowing more cellulose over an unsealed attic floor is just adding R-value on top of a problem.
- GreenFiber SANCTUARY loose-fill, installed without air sealing, creates a false sense of performance. This line is marketed heavily for its sound-dampening and thermal properties, but in Chicago’s Lakeview and Lincoln Square two-flats, we’ve tested SANCTUARY attics reading 12 to 14 ACH50 because the top plates and can lights were never sealed before the cellulose went in. The product isn’t failing; the installation sequence was wrong. We fix it by pulling back the cellulose, sealing the penetrations, and re-blowing to spec.
- GreenFiber Cocoon (spray-applied wet cellulose) can delaminate in wall cavities when Chicago humidity spikes in July and August. We’ve seen this in frame walls along the lakefront where the original install was too wet. The symptom is cold spots in winter that show up as dark blue patches on thermal imaging. The repair is cavity extraction and either a dry re-blow with proper density or a switch to a different product entirely, depending on what the wall assembly calls for.
- GreenFiber Cellulose in rim joist cavities holds moisture against the band board. Chicago basements and crawl spaces are the problem here. When GreenFiber is packed directly against a rim joist without a vapor barrier or proper air sealing, it acts like a sponge pulling moisture from the foundation. We’ve pulled out rim joist cellulose in Portage Park that was holding 35 percent moisture content. The fix is removal, air sealing the band board, and either closed-cell spray foam or rigid board with spray foam perimeter, depending on the budget and the wall assembly.
- GreenFiber attic insulation installed over recessed can lights that aren’t IC-rated is a fire hazard and an air leak. This one shows up in audits more than any other GreenFiber failure mode. In Chicago homes built before 2000, non-IC-rated can lights buried under cellulose run hot and leak conditioned air straight into the attic. We flag it on the audit, recommend either replacement with sealed IC-rated fixtures or building proper clearance boxes, and then seal and re-insulate. No insulation goes back over an unsealed penetration on our jobs.
Our GreenFiber Home Energy Audit Process
This is the sequence we follow on every GreenFiber audit in Chicago, from the first phone call to the report we hand you when the work is done.
- 1
Call (218) 261-7714 and get a live person. We answer 24/7. We ask about the house, the symptoms you’re noticing (cold rooms, high bills, drafts), and whether you know what kind of insulation is installed. If you have GreenFiber product documentation, we’ll ask you to have it ready.
- 2
The audit walkthrough. Our technician arrives in uniform, background-checked, and we walk the house with you before any equipment comes out. We look at the attic hatch, the rim joists, the wall cavities, and the ductwork if it’s accessible. We’re looking for signs that GreenFiber was installed correctly or incorrectly: density, settling, moisture staining, gaps around penetrations.
- 3
Blower-door test. We depressurize the house to 50 pascals and measure the cubic feet per minute of air leakage. This gives us a single number, ACH50, that tells us how much outside air is moving through your building envelope. The blower door is the only instrument that gives us a real number instead of an opinion.
- 4
Thermal imaging inspection. With the house depressurized, we run an infrared camera across the walls, ceilings, and floors. The blower door pulls outside air through every gap, which makes the thermal images dramatically more useful. Cold air streaming through a cavity shows up as a visible plume. This is where GreenFiber-specific problems, like settled cellulose or delaminated Cocoon, become visible.
- 5
Duct leakage test (optional but recommended for homes with forced air). If your ductwork runs through an unconditioned attic or crawl space, we test it. In Chicago, duct leakage in an unconditioned attic can lose 20 to 30 percent of your heated air before it reaches a single register. We measure it, show you the number, and give you a written price to fix it if it needs fixing.
- 6
Written report and photo log delivered on the spot. Before we leave, you get a printed report with your ACH50 reading, thermal images, a photo log of any air-sealing locations or problem areas, and a written price for any work we recommend. It’s Haven Standard Clause 1: written price, written scope, written warranty, before anyone lifts a tool. No surprises, no phone calls three days later with a different number.
What GreenFiber Home Energy Audit Costs in Chicago
Here’s the honest pricing picture for GreenFiber home energy audits in Chicago, named in dollars rather than hidden behind a “call for quote” wall.
| Service | Typical Price Range | What’s Included |
|---|---|---|
| Home Energy Audit (blower door + thermal imaging) | $395-$495 | Full walkthrough, blower-door test, thermal imaging, written report, photo log |
| Home Energy Audit + Duct Leakage Test | $495-$650 | Everything above plus duct leakage measurement and duct sealing recommendations |
| Audit + Air Sealing (top plates, can lights, penetrations) | $1,200-$3,800 | Audit plus sealing work; price scales with attic size and number of penetrations |
| Audit + GreenFiber Top-Off (after settling) | $900-$2,500 | Audit, air sealing, and re-blowing cellulose to proper R-value spec |
What moves the price in Chicago homes: attic square footage, number of can lights and ceiling penetrations, whether the existing GreenFiber is wet or already settling, and whether the rim joists need addressing. Attic access layout matters too; a tight crawl-in attic takes longer to seal properly than a full standing attic. We give you a written price after the audit, before any work starts, and that number doesn’t move. Estimates are free. Call (218) 261-7714 to schedule an audit and get a written report you can actually read.
Why Chicago Homeowners Call Topside Attic Insulation for GreenFiber Work
We have sealed and insulated over 9,000 homes since 2016, and every one of those jobs began with a written price before work started and ended with a documented record when the crew left. On insulation and air-sealing jobs, that record includes before-and-after blower-door numbers so you can see, in a single figure, how much conditioned air your house was losing before and after. Wes Okafor, our owner and lead technician, grew up on the Northwest Side and has been running blower-door tests on Chicago homes for over twenty years, starting well before Topside Attic Insulation was founded. We service GreenFiber-insulated homes because the product shows up in so much of Chicago’s housing stock, and we also work with Reflectix and the full range of major insulation brands, which means our recommendations are never locked to one manufacturer. Our 365-Day Done Right Promise applies to every completed job: if it’s not done right, we make it right. And a live person answers our phones 24/7, so when you call (218) 261-7714, you’re talking to a human being on the first ring, not a voicemail loop.
Seal the holes first. Then add the R-value. The numbers will tell you whether it worked.
FAQs
No, a home energy audit does not void your GreenFiber warranty. The audit is diagnostic work, not modification. We do not alter your insulation during an audit. If we recommend air sealing or a top-off, that work is separate and quoted in writing before anything happens. As an independent GreenFiber service provider, we’re happy to work with whatever warranty documentation you have, but we’re not filing claims on your behalf. The written report we provide gives you everything you need to pursue a claim directly with GreenFiber if the audit finds an installation defect. Call (218) 261-7714 to schedule an audit and get the documentation you’ll need.
Yes. The combination of a blower-door test and thermal imaging tells us almost everything we need to know without cutting into walls. The blower door depressurizes the house so any air leak becomes visible on the infrared camera, and settled or under-densified GreenFiber shows up as cold bands across the ceiling or walls. We can also take density readings in accessible attic spaces to compare your installed density against GreenFiber’s published specs. In Chicago homes, the most common installation defect we find is cellulose blown over unsealed top plates and can lights, which the blower door exposes immediately. Call (218) 261-7714 for an audit and a written report.
In most Chicago homes, topping off settled GreenFiber cellulose is significantly cheaper than full removal and replacement. A top-off typically runs $900 to $2,500 depending on attic size, while full removal and re-blow can run $3,000 to $7,000 or more. But the decision depends on what the audit finds. If the existing cellulose is dry, not contaminated with rodent droppings, and simply under-densified or settled, a top-off after air sealing is usually the right call. If the cellulose is wet, moldy, or full of pest debris, removal is the only responsible option. We’ll tell you which path makes sense after the audit, with a written price for either option. Call (218) 261-7714 for an exact quote, estimates are free.
Most Chicago home energy audits can be scheduled within 48 to 72 hours, and we keep same-week slots open for homeowners with active problems like water staining, suspected moisture in the insulation, or a heating bill that’s suddenly doubled. We also offer 24/7 phone support, so you can call (218) 261-7714 at any hour and speak with a live person to get on the schedule. For urgent cases where you’ve found wet insulation or suspect a fire hazard, we can often be out the same day or next morning depending on location. Chicago traffic is the only variable we can’t control.
We fix what the audit finds. Topside Attic Insulation is a full building-envelope contractor in Chicago: attic air sealing, blown-in insulation, spray foam, wall insulation, rim joist sealing, crawl space encapsulation, and insulation removal and replacement. After the audit, you get a written price for any recommended work, and if you approve it, the same crew that ran the test does the repair. We don’t hand you a report and send you off to find another contractor. Call (218) 261-7714 to schedule an audit and get a written scope you can act on.
Contact Topside Attic Insulation for GreenFiber Home Energy Audit in Chicago
If you own a Chicago home insulated with GreenFiber and you want to know whether it’s actually performing, call us at (218) 261-7714. We’ll schedule your audit, run the blower door, show you the numbers, and hand you a written report with thermal images, a photo log, and a written price for any work we recommend. Free estimates, written before any work starts, and a 365-Day Done Right Promise on everything we do. No voicemail trees. A live person answers.
Written by Wes Okafor, Owner & Lead Building Envelope Technician, Topside Attic Insulation at Topside Attic Insulation, serving Chicago and nearby areas.