Lic.# 496841 | TEL: (310) 538-9595 | TEL: (714) 960-1211


What does R-value mean?

R-value is the unit used to measure resistance to heat flow. Basically, the higher the R-value the more insulating power a material has. The R-value is calculated using a number of factors, including thickness, material type, and installed weight per square foot. All materials with the same R-value have the same insulating power and same resistance to heat flow.

What R-value do I need in my home?

The U.S. Department of Energy recommends home insulation R-values based on where you live.

New homes must comply with current building code requirements for insulation. These building codes establish minimum levels of insulation for ceilings, walls, floors, and crawlspaces for new residential construction.

One of our experienced estimators can consult you on which R-value is needed in your home.

What are the most important areas to insulate in my house?

Your attic (or top floor ceiling) and walls around the perimeter of your house are the most important areas to insulate, followed by the area under the floor if your house is on a raised foundation. These areas create an envelope around your home, separating the conditioned space inside from the cold or heat outside.

What kind of insulation should I put in my attic?

The two main categories of insulation that we install in attics are batt material (pieces which are put in by hand) and loose-fill material (which is blown in using an insulation blowing machine).

We recommend installing batt material when possible because it is easier to move if you need to have additional work done in your attic (HVAC, electrical, etc.).

Will insulation really make my house more energy efficient?

Yes, insulating is a great way to increase the energy efficiency of your home and decrease the cost of your heating and air conditioning. Exactly how much energy you can save with insulation depends on factors like the type of insulation installed, size and construction of your house, the type of HVAC systems you have and more.

Can insulation help reduce unwanted sound?

Yes, insulation can help reduce unwanted sound, especially those at high frequencies. Certain types of insulation are even specially made to reduce sound transfer.

Why hire an insulation contractor instead of installing the material myself or hiring a specialty contractor from another trade (air conditioning, pest removal, etc.) or handyman?

Before undertaking an insulation installation project yourself, keep in mind that fiberglass insulation is a messy product and is difficult to handle if you don’t have the proper tools, clothing, and experience. It must also be installed by an experienced hand, as proper installation is essential for insulation to be effective.

Hiring a contractor that does not specialize in insulation can be problematic. Insulation contractors have specialized knowledge in areas that are critical to installation techniques such as vapor retarders, air infiltration, ventilation, recessed lighting, and water pipes.

At Allied Insulation, our installers are well trained and have years of experience installing insulation. Our estimators are familiar with local codes and regulations, and can offer guidance about the type and amount of insulation to be used. You won’t get the same knowledgeable consultation or quality of installation from a contractor of another trade or handyman, and when problems arise our crews have the experience to solve them.