HomeMatchup
21 sections · Insulation

Insulation, a house that holds its temperature

It usually starts with an upstairs that is always warmer than the downstairs. The hard part is not the work - it is that every insulation company sounds equally sure of itself, and you get one guess. We check licence and insurance before we introduce anyone, and we record the date we checked.

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Insulation in short

Residential insulation work breaks into five jobs: attic insulation, wall insulation, crawl space and basement insulation, spray foam application, and air sealing. Air sealing comes first. The EPA's ENERGY STAR program explicitly recommends completing an attic air sealing project before adding attic insulation, because insulation slows heat conduction but does almost nothing to stop air leaking through gaps.

Whole-home insulation runs about $2,000-$7,400 nationally, averaging roughly $4,700 for a 2,000 sq ft home, per Fixr's January 2026 cost data. Blown-in insulation costs about $1.65-$3.80 per square foot installed, and spray foam is the expensive option at roughly $2.75-$6.50 per square foot in new construction and $3.15-$7.50 in existing walls.

What we promise, and what we do not

How a pro gets in front of you

Most sites sell your number to whoever pays the most for it. We do not - your details reach only the insulation companies matched to your job. We are building licence and insurance checks on top of that, and we will publish each one with the date it was performed rather than claim it in advance.

A few pros, never a list

Your details go to the small number of local companies matched to your job, and to nobody else. They are not sold on.

No paid placement

A company cannot buy a better position in a match or in our rankings. Where we rank, the method is published so you can re-score it yourself.

Check the licence yourself

Ask for the number and look it up on your state board’s public register. We are building this into the match; it is not running yet.

Ask the insurer, not the contractor

Get liability and workers’ compensation certificates sent to you by the insurance agency direct. A forwarded PDF proves nothing about today.

What we check, and what we do not check yet

No verified insulation price ranges published yet.
We don’t publish a cost until we can show the data behind it. If you need a number today, the quote form gives you real prices from local companies.

Honest comparison

HomeMatchup vs. a lead site vs. doing it yourself

Three ways to get this work done. Here’s what each one actually gives you.

Getting insulation work done - three routes compared
HomeMatchup Typical lead site DIY
How many companies call youA short, named shortlist you agreed toOften 4-5+ at once, sold to whoever buys the leadNone - the work is on you
Licence & insuranceSelf-reported today - we tell you how to check it and are building the check inUsually self-reported by the contractorYour own permits and liability
What it costs youFree - pros pay us, and only for a real matchFree, but your number is resoldMaterials plus your time
Price guidance before you talkPublished ranges with the data behind themRarely shown before you hand over detailsYou research it yourself
If it goes wrongA named company, and a record of who received your jobHard to trace which site sold the leadNo recourse

Describes how HomeMatchup operates and the common lead-generation model. Not a claim about any named competitor.

Homeowners

What people say after they’ve hired

Zero reviews. On purpose.

We’d rather show you nothing than show you someone else’s reviews.

Plenty of sites fill this space with reviews scraped from elsewhere, or written for them. We don’t. The first insulation review on this page will come from a homeowner we matched, after their work was finished and paid for.

  • Only from homeowners we actually matched
  • Only after the job is complete
  • Published unedited, including the bad ones
  1. 1You get matchedA few checked pros, free
  2. 2Work gets doneCheck their licence and insurance first
  3. 3We ask youOnce, after completion
  4. 4It appears hereExactly as you wrote it
FAQ

Insulation questions, answered

The questions homeowners ask us most about insulation.

For an uninsulated attic, ENERGY STAR recommends R30 in Zone 1, R49 in Zones 2-3, and R60 in Zones 4-8. With 3-4 inches already there, targets drop to R25, R38 and R49. Floors range from R13 to R38 by zone. Check your climate zone on the IECC map rather than assuming. See our insulation guides.
Whole-home work runs about $2,000-$7,400 nationally, averaging roughly $4,700 for 2,000 sq ft (Fixr, January 2026). Blown-in installs about $1.65-$3.80 per sq ft; spray foam about $2.75-$7.50 per sq ft depending on new construction versus retrofit. Attic blown-in jobs often land $1,750-$5,500. See insulation cost.
An attic top-up often does within a reasonable period. A $20,000 whole-house foam job usually does not on energy savings alone, given ENERGY STAR’s up-to-10% figure for annual bill savings from sealing plus insulating. Run the arithmetic against your own utility bills, not a national average pitch.
Material and equipment. Closed-cell material alone runs about $1.00-$1.50 per board foot versus roughly $0.50-$1.10 per sq ft for blown fiberglass material. Installed, spray foam is about $2.75-$7.50 per sq ft. You are buying higher R-value per inch plus an air barrier in one step - and removal costs $1.50-$3.00+ per sq ft if it goes wrong.
Blown-in attic work at 8-18 inches typically runs $1,750-$5,500 per Fixr. Bob Vila reports a $2,500 national average with a $1,500-$3,500 typical range. Both are consistent with a mid-size attic as a low-four-figure job when you are topping up, not foam-sealing the whole house.
See all 1 insulation question

The wrong insulation hire costs more than the right one.

Insulation is sold by the inch and works by the air seal. Adding depth over an unsealed attic buys you very little. Getting matched takes about a minute, costs nothing, and you can walk away from every quote you receive.

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Who wrote and checked this

Written by

The HomeMatchup Content Team

Editorial
Reviewed by

Michael Thompson

Senior Home Improvement Reviewer · 20 years

Senior technical reviewer.

Team-written. Second-person reviewed. Sources dated. Report a correction.

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