Attic insulation at Home Depot can cost about $500-$2,000 for a 1,000-square-foot DIY project, while professional installation commonly brings the total to $1,500-$5,000. The final price depends on insulation type, target R-value, existing material removal, attic access, and local labor rates; product prices and installation availability vary by ZIP code.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| DIY materials, 1,000 sq ft | $500 | $1,100 | $2,000 | Insulation plus basic supplies |
| Professional installation, 1,000 sq ft | $1,500 | $3,000 | $5,000 | Installed price; removal may cost extra |
| Fiberglass batts | $0.40/sq ft | $0.80/sq ft | $1.40/sq ft | Material only; varies by R-value |
| Blown-in insulation | $0.60/sq ft | $1.00/sq ft | $1.60/sq ft | Material only; equipment may be separate |
Assumptions: 1,000-square-foot attic, ordinary access, standard materials, and no major air-sealing or structural repairs.
Home Depot attic insulation prices for a 1,000-square-foot attic
For a straightforward DIY job, a homeowner may spend $500-$2,000 on insulation and associated supplies. A midrange project using fiberglass batts or blown-in cellulose often lands near $1,100 before substantial air sealing or removal. Prices depend on product coverage per package, required depth, brand, and store inventory.
Installed prices from local contractors are often $1.50-$5 per square foot, or $1,500-$5,000 for 1,000 square feet. Home Depot may offer installation through local service providers in some areas, but the store’s online product price is not an installed quote. Compare the written estimate’s included work, not just the advertised insulation price.
What batts, blowing equipment, and supplies add to the bill
Material costs are only part of a DIY budget. Fiberglass rolls or batts are easier to price by coverage, while loose-fill products are sold by bag and require enough material to reach the selected R-value. Check each package’s coverage at the intended depth rather than relying on a general bag count.
| Quote item | Typical price | What changes the charge | Budget note |
|---|---|---|---|
| Fiberglass batts or rolls | $0.40-$1.40 per sq ft | R-value, width, facing | Confirm joist spacing and coverage |
| Loose-fill insulation | $0.60-$1.60 per sq ft | Material, depth, coverage | More bags are needed for higher R-values |
| Blower rental | $0-$100 per day | Store offer, rental terms | Some promotions require bag purchases |
| Safety and air-sealing supplies | $50-$300 total | Mask, suit, caulk, foam, baffles | More for numerous gaps or vents |
| Old insulation removal | $1-$2.50 per sq ft | Debris, contamination, access | Often quoted separately |
Professional labor may account for roughly $0.75-$2.50 per square foot of an installed quote, depending on preparation and installation method. A crew’s hourly rate and project minimum can matter more on small attics than on broad, open spaces. Ask whether equipment, cleanup, and disposal are included in the labor charge.
How attic depth and R-value change the Home Depot total
Target R-value affects both material quantity and price. Many U.S. attics need roughly R-30 to R-60, depending on climate, existing insulation, and local recommendations. Moving from R-30 to R-49 may require another layer or added loose-fill, increasing material costs by about 20%-60% when the existing insulation is thin.
Area also changes the estimate: a 500-square-foot attic may have a higher per-square-foot price because of minimum charges, while 1,500 square feet requires more bags but can reduce labor cost per square foot. Eaves, narrow joist bays, and obstructed access can increase installation time. Measure the attic floor and record existing insulation depth before calculating package quantities.
Does Home Depot install attic insulation in every ZIP code?
Installation service availability varies by location and project scope. In some markets, Home Depot connects customers with independent service providers; elsewhere, the store may sell materials without offering a matching installation appointment. Request an on-site assessment when attic access or existing insulation is uncertain.
A contractor quote should specify insulation type, installed R-value, air sealing, ventilation baffles, cleanup, and disposal. A low estimate may cover only adding insulation over an open attic floor, not removing wet material or sealing penetrations. Get an itemized quote before assuming a store product price includes installation.
Fiberglass batts or blown-in insulation for the same attic
Batts commonly cost less in material when joist bays are open, regular, and easy to reach. They can be difficult to fit tightly around wiring, framing, and obstructions; gaps reduce performance. For a 1,000-square-foot attic, a basic batt DIY materials budget may be $500-$1,300, excluding extensive air sealing.
Blown-in cellulose or fiberglass fills irregular spaces more evenly, but requires a blower and careful depth control. A comparable DIY materials budget can be $700-$1,800, including common supplies and possible rental charges. Professional blown-in work often costs more than materials alone but may be faster for broad, unobstructed attics. Choose based on attic layout and installed coverage, not package price alone.
Removal, delivery, and attic repairs that can raise the quote
Removing old insulation can add $1-$2.50 per square foot, with contaminated material, rodent damage, or difficult access pushing costs higher. Delivery may be free, discounted, or charged separately depending on order size and distance; confirm the fee before checkout. Some projects also need baffles, hatch insulation, or air sealing.
Water-damaged insulation should not simply be covered. Roof leaks, exposed wiring, recessed lights, and blocked soffit vents can require repairs or extra preparation. These are not always included in a basic installation quote. Have the attic checked for moisture and ventilation problems before buying the full material quantity.
Three attic quotes show where the money goes
A 600-square-foot open attic with fiberglass batts may need $300-$800 in materials and supplies for a DIY total, assuming no removal. A 1,000-square-foot attic with blown-in cellulose may run $700-$1,800 for DIY materials and rental, depending on target depth. A 1,200-square-foot professional add-on over existing insulation may cost $1,800-$4,200, with labor, prep, and regional pricing driving the spread.
These examples are budgeting ranges, not Home Depot guarantees. A contractor may price a small project at a minimum charge, and a high-cost metro area can run 15%-30% above a typical regional estimate. Use the same attic area, R-value, and work scope when comparing store or contractor quotes.
How to lower the Home Depot insulation bill without cutting coverage
Measure accurately, compare package coverage at the chosen R-value, and avoid buying extra bags based only on attic square footage. If existing insulation is dry and in good condition, adding a compatible layer may cost less than full removal. Seal accessible air leaks before adding insulation, while keeping vents and required clearances unobstructed.
Compare batts and loose-fill by installed coverage, include rental and delivery fees, and ask whether a blower offer depends on buying a minimum number of bags. Get at least two itemized installation quotes if hiring a crew. Avoid paying for a higher R-value than local conditions and the existing insulation require without checking the expected benefit. Scope control and accurate coverage calculations are the most reliable ways to protect the budget.