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Question DetailsAsked on 11/17/2013

Is $3500 a resonable cost for removing blown-in insulation and reinstalling R-30 installation (1053 sq. ft)

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2 Answers


Normally insulating an attic to about R-30 runs $2-3/SF, so removing blown in and putting in R-30 (I presume you mean new R-30) would probably run about $2/SF for blown-in, $3/SF or a bit more for batt, so I would say that is in the range but maybe high end of it. For a $3500 job I would recommend you get at least 2 bid, and if they are not similar then 3 bids from contractors with good reputations and reviews.

Answered 6 years ago by LCD


That numbers isn't way out of range but I do recommend a couple of bids as LCD stated.

Get that attic floor air sealed while the insulation is out. That will make the real difference in the efficiency and air quality of the home.

I would also recommend going to and R-49. Shouldn't be that much more and that is Energy Star recommended.

The difference in total efficiency won't be huge at all from R-30 to R-49 but it should be a cheap investment.


Answered 6 years ago by WoWHomeSolutions

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