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How Much Does it Cost to Replace Insulation?

Last Updated May 19, 2015 · Written by Kat Tate

Insulation lasts a long time, but occasionally needs replacing. Reflective insulation can become grimy or torn and lose much of its efficiency. Bulk insulation can become compressed and lose its ability to absorb heat.  You may not have the right insulation for your climate and want to install better insulation to reduce your heating and cooling costs. There are many reasons why you might need to replace your insulation, but how much is it going to cost?

Cost* Considerations for Replacing Insulation

What you pay to replace the insulation in your roof depends on a few factors:

  • How much insulation do you need?
  • What type of insulation needs replacing?
  • Can you salvage some of your existing insulation?
  • Can you install your replacement insulation yourself or should you hire professional installers?
The first thing you need to do is determine where you need insulation the most. If your house stays hot after dark, it may be because heat is being stored in your walls and is released into your house when the temperature goes down. If it seems like you have to run your air conditioner constantly, heat may be escaping through your ceiling.

Calculating the Cost* of Replacing Insulation

It can cost $2500 to $5000 or more to have all your insulation removed and replaced, so make sure you're having the right insulation removed and that you're replacing it with more efficient insulation. When you get quotes from insulation businesses, compare more than their costs. Ask them for their professional advice and compare the advice you're given. Do they all make similar recommendations? If so, you're probably getting good advice. If one quote is significantly cheaper or more expensive than the others, what is the reason for the price difference?

To get accurate quotes, the insulation businesses will have to inspect your insulation. While they're at it, they might uncover the reason why your insulation needs replacing. Rodents may have damaged your insulation or water leaks may have caused your bulk insulation to compress and lose its insulating properties. If you have additional problems like these, you will have to address those problems as well or you will be wasting money on new insulation.

When comparing quotes, ensure you check what’s included and excluded. Ask to see referrals or even contact previous customers. A long-established local business with a good reputation is your best bet. Their business depends on their reputation and they will not risk their reputation to make a few more dollars on a single job.

*Cost and prices in this article are indicative and should only be used as a guide. They also vary locally and are subject to market forces. This article was updated 14 May 2015 to reflect current market pricing.
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