SJG Conserve

Sign Up For New Article Alerts

Go Green & Save

Insulation for Energy Savings

Insulation for Energy Savings

House Call: Adding Insulation to an Existing Home 

Most homes are not designed and built specifically to maximize energy efficiency, and older homes typically have less insulation than newer homes. Homeowners can often lower their energy bills by adding more insulation, and the investment in added insulation often pays for itself in just a few years.

If you’re considering adding insulation, first answer the following questions: 

  • What locations in the home are both properly and improperly insulated?
  • What type of insulation is already in place?
  • What is the R-value (a thermal resistance rating) and the thickness or depth of the existing insulation?

If you need help to determine that information, a qualified home energy auditor can evaluate your insulation as part of a whole-house energy assessment (or audit). That analysis will also help you identify parts of your home that need to be air sealed, which should be completed before you insulate. 

For details and guidance on insulation inspection, product factors, cost estimates and more, visit Adding Insulation to an Existing Home. And thanks to our friends at for their expert advice! 

Save energy and money -- check out SJG Energy Efficiency programs available exclusively for SJG customers.





ETG Canvas Bag

Share your email address and we'll keep you updated on helpful news and info from Conserve.

Please enter a valid email address.

Sign Up

Customer Service

Can't find what you need on our site? Click or tap below to contact us via message or phone. We are happy to help you.

  Contact Us

811: Call Before You Dig

Call 811 or visit before you dig - it's the law! Click or tap below for further information on utility markouts and safety.

  Learn More

Regulatory Information

Click or tap below to access our regulatory filings and tariff information.

  Learn More