fiberglass insulation
Skip itPrices mostly outside the sweet spot ($6.43–$1155.59) — this niche doesn't clear our bar today.
Review moat
Great417.75avg incumbent reviews — the moat a new listing must climb
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Returns
Good2.8%return rate — above 5% kills the launch gate
Avg price
Okay$190.38avg listing price — sweet spot $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$139K$139K/yr · 93K searches
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Growth
Bad-27.4%90-day search growth — must beat 0% to launch
Conversion
Bad0.8%search→purchase rate — share of searches ending in a sale
Price range
Bad$6.43–$1155.59cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, fiberglass insulation is a $139K/yr Amazon United States market (93K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Jan–Nov–Dec. Verdict: Skip it — 35/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
fiberglass insulation market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- $286K–$381K
- units × avg price
- Conversion rate
- 0.8%
- Avg BSR
- #180
- Page quality
- 0%
- Prime
- 47%
- Sponsored
- 41%
- Out of stock
- 6.1%
- Avg brand age
- 51 months
- Avg seller age
- 184 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
13 rising
Sellers
78
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
49%
Top 20: 86%
Open market
9%
- Owens Corning32%
- Frost King28%
- Generic13%
- Vigpil10%
- Cedolio6%
- RecPro3%
- Open — no brand owns it (7 brands, 9%)
Demand & seasonality
Weekly Amazon search volume, last 90 weeks — -27.4% search growth over the last 90 days.Peak months: Jan, Nov, Dec · busiest ÷ quietest = 2.3×
Top fiberglass insulation search terms
- fiberglass insulation36K/yr
- r13 insulation15K/yr
- fiberglass insulation roll17K/yr
- fiberglass insulation rolls7K/yr
- insulation batts6K/yr
- batt insulation8K/yr
- insulation fiberglass4K/yr
Top fiberglass insulation products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Frost King Foil Backed Fiberglass Pipe Wrap 3x1x25
Frost King$6.924.4★2,641 rev
Owens Corning R- 15 Faced Fiberglass Insulation ROLL 15 in. X 24 FT. 1 ROLL RF32
Owens Corning$32.864.6★44 rev
Owens Corning R-13 Pink Kraft Faced Fiberglass Insulation Roll 15 in. x 32 ft. (3)
Vigpil$151.985.0★10 rev
R-13 EcoRoll 15inch Wide Kraft Faced Fiberglass Insulation Roll 3-1/2 x 15 x 32 40 SF **(Packed by Eagle Electronics)
Generic$47.194.3★35 rev
Owens Corning R-19 Unfaced Fiberglass Insulation 77.5 Sq.ft (15 in x 93 in) 1 Batt
Owens Corning$69.234.6★3 rev
Newest
by launch date
Fiberglass Insulation 2 Thick 48 Wide 59 Long 236 Sq Ft Unfaced for RV Trailer Boat Home Attic Garage
Generic$110.943 rev
Owens Corning R-19 Unfaced Fiberglass Insulation 77.5 Sq.ft (15 in x 93 in) 1 Batt
Owens Corning$69.233 rev
R21 Unfaced Fiberglass Insulation (5.5 x 15 x 93 batts) - 77.5sf 8pcs
Owens Corning$79.481 rev
Owens Corning R- 15 Wall Kraft Faced Fiberglass Batt Insulation 87.5-sq ft ( 15-in W x 105-in L)
Owens Corning$69.810 rev
MMasters 24*8*1 Ceramic Fiber Insulation Blanket Fireproof & Heat Resistant Up to 2700F Ideal for Wood Stove Baffle Fireplaces Kilns Forges Pizza Ovens and More
Molten Masters$9.89130 rev
Trending
90-day click momentumOwens Corning R- 15 Wall Kraft Faced Fiberglass Batt Insulation 87.5-sq ft ( 15-in W x 105-in L)
Owens Corning$69.810.0★
R21 Unfaced Fiberglass Insulation (5.5 x 15 x 93 batts) - 77.5sf 8pcs
Owens Corning$79.485.0★
Fiberglass Insulation 2 Thick 48 Wide 59 Long 236 Sq Ft Unfaced for RV Trailer Boat Home Attic Garage
Generic$110.945.0★
Owens Corning R-19 Unfaced Fiberglass Insulation 77.5 Sq.ft (15 in x 93 in) 1 Batt
Owens Corning$69.234.6★
2 Pack Owens Corning R-15 Pink Kraft Faced Fiberglass Insulation Roll 15 in. x 24 ft. (Packed by Eagle Electronics)
Owens Corning$95.533.1★
What buyers say about fiberglass insulation
What buyers praise and complain about, mined from review topics.What buyers love
“As advertised”
“Good product, easy to use”
“Easy to Use”
“Worth the money for sure”
“The clean up is extremely easy”
“Easy installation”
“Installed on my four wheeler muffler works really good”
“This was the perfect thickness”
“Fits perfectly”
“Easy to apply and adjust spray width”
What buyers complain about
“Not worth the price”
“The spray is so thin”
“Not sure why this has such high ratings”
“Open the nozzle more to get a better spray pattern”
“Falls apart in your hand”
“Coverage is much less than stated on can”
“Not useful”
“It would not adhere as it was supposed to”
“The tile in front is cold”
“Doesnt work in tight spaces”
Top return reasons
Common questions
- Is fiberglass insulation profitable to sell on Amazon United States?
- The niche generates $139K/yr across 32 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -27.4%. Flapen's verdict: Skip it (35/100).
- How competitive is the fiberglass insulation niche?
- 13 brands and 78 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in fiberglass insulation?
- Top complaints mined from reviews: Value For Money, Thickness, Quality-Overall. The return rate is 2.8%.
- When does demand for fiberglass insulation peak?
- Demand peaks in Jan–Nov–Dec; the busiest month runs 2.3× the quietest.
- What does it cost to enter the fiberglass insulation niche?
- Listings span $6.43–$1155.59; the average listing price is $190.38 (sweet spot $15–$100). The average incumbent carries 418 reviews — the moat a new listing must climb.