Spray Foam Insulation

Expert Spray Foam Insulation Company Serving Ashburn, Reston, Sterling & Nearby

Improve the comfort of your home with moisture-proof spray foam insulation

Spray foam insulation in Fairfax Station

A versatile energy-saver. 2-part spray foam expands after it's applied, creating an effective thermal and moisture barrier. Thanks to its unique properties, it can be used to solve comfort & energy problems in many parts of the house.

The insulation "team" that's supposed to make our homes comfortable and energy efficient is truly a motley crew. In the old days, sawdust was sometimes dumped inside walls to slow heat loss. Then came vermiculite — porous lightweight pebbles with the look and feel of kitty litter.

Today we still rely on an old-timer, fiberglass batt insulation that's made from spun glass fibers. But if you're looking for a star player on the insulation team, a standout with qualities that other types of insulation can't touch, it's got to be spray foam. More specifically, we're talking about closed-cell polyurethane spray foam.

Increase your comfort and decrease your energy bills with spray foam insulation in Ashburn, Reston, Sterling, and nearby cities and towns such as Great Falls, Reston, Herndon, Vienna, Middleburg, Purcellville, Fredericksburg, and Stafford. We are your trusted spray insulation contractor in Virginia.

Before and After
  • Spray Foam Garage Ceiling-Ashburn, VA
    Before
    Spray Foam Garage Ceiling-Ashburn, VA
    After

    This Ashburn, VA had rooms over the garage that were too hot in the summer.  This is can often be caused by fiberglass batts installed by the builder in the ceiling of the garage.  They fall away from the sub-flooring depleting all thermal insulating value.  This customer decided to remove the entire garage ceiling and use closed cell spray foam to fix the problem.

  • Garage Insulation in Sterling VA
    Before
    Garage Insulation in Sterling VA
    After

    Cold floors in rooms above garages are typically caused by air gaps between the sub-flooring above and the fiberglass batt insulation below. Any time insulation does NOT touch the surface you are trying to keep warm or cool...it will NOT work!

    See how big the gap between the floor and the insulation is in this Sterling Virginian Home WOW!!!!  This might have been the worst we have ever seen...Might be 2-3 feet of a gap!

    Our team spray foamed the gaps to ensure no air leakage. These floors are now much more comfortable! 

  • Hot/Cold Sun Room-Sterling, VA
    Before
    Hot/Cold Sun Room-Sterling, VA
    After

    This sun room in Sterling, VA was too hot in the summer and too cold in the winter.  People spend a lot of money on these sun rooms and then can't use them because they aren't insulated well.  Comfenergy removed the fiberglass batts and installed closed cell spray foam to make it usable all year round!

  • Attic Access Installation in Sterling, VA
    Before
    Attic Access Installation in Sterling, VA
    After

    This Sterling, VA homeowner called us out to lower his energy bills, but we couldn't get into the attic because there was no access. We cut the drywall and created a new access with trim. 

  • Fiberglass versus Spray Foam-Leesburg, VA
    Before
    Fiberglass versus Spray Foam-Leesburg, VA
    After

    This before photo shows a vertical wall in an attic insulated with fiberglass insulation. This fiberglass allows hot/cold air to travel through it and touch the drywall, thus allowing the heat and/or cold to transfer into the living space.

    The after picture shows the fiberglass removed and newly insulated using closed cell spray foam.  This builds a great protective thermal and air barrier and makes the top floor of this home cooler in the summer months.

There are two basic types of spray foam insulation:

1-part foam: You've seen and probably used this type of spray foam, which comes in pressurized cans that are sold at home centers and hardware stores under brand names like GREAT STUFF™. This single-component foam is super-sticky, and expands at different rates (depending on the type you buy) immediately after application. Since it seals gaps as well as insulates, this product is often referred to as an "insulating foam sealant."

2-part foam: To insulate an entire basement or attic with spray foam, contractors use 2-part polyurethane foam that comes in a pair of pressurized metal containers. When both components (resin and a catalyst) are mixed together at the nozzle, a foaming chemical reaction takes place that causes the material to expand.

Spray foam advantages:

R value. Poly spray foam has a higher R-value per inch than any other commonly used insulation —R-6.2 or higher, depending on the formulation.

Air barrier: Spray foam air-seals and insulates in one step. Its ability to expand and fill gaps and cracks make it an ideal air-sealing material, and it stays in place because of its super-adhesive qualities. Spray foam is often spot-applied as an air-sealing treatment prior to filling an attic with blow-in insulation. But when applied in more generous amounts, it can eliminate the need for other types of insulation.

Waterproof: Moisture will soak its way through fiberglass and cellulose insulation, but polyurethane spray foam stops it cold. Its closed cell structure means that water can't migrate from one tiny cell or bubble to a neighboring one.

Foolproof: Did you know that a void (missing insulation) of just 5% of an insulated area can diminish overall insulation performance by as much as 50%? It's very difficult to install fiberglass insulation perfectly, so voids are not uncommon. But spray foam's expanding, super-sticky characteristics just about eliminate the possibility of voids. And once the foam cures, it's not going to settle or shift like fiberglass or cellulose can.

Spray Foam Can Be Troublesome to Apply by Yourself!

Tricky: It takes experience to get the feel of applying spray foam, especially two-part foams. With their different expansion rates and other qualities, they prove difficult for someone without experience to get the most of this material. For example, a high-expanding foam will damage a door or window jamb, but our training and experience can prevent this from happening.

Oftentimes, spray foam can also be wasted and get messy -- but our fully trained specialists know how to get the job done well the first time! 

Temperature sensitive: Cold temperatures affect the chemistry that causes the foaming action. It's critical to keep spray foam cans or two-part foam canisters within a specific temperature range for successful application.

Be sure to check out our comparison between spray foam and rigid foam insulation. We also provide assistance in choosing the best spray foam insulation.

Get Your Spray Foam Cost Estimate Today!

Contact us today for a Free Estimate -- we are your trusted spray foam insulation contractor in Reston, Sterling Ashburn, Herndon, Reston, Great Falls, Middleburg, Purcellville, Fredericksburg, Vienna, and more including Stafford.

We also offer a comprehensive home energy audit to diagnose the major contributors to your home's energy issues.

Looking for a price? Get a no cost, no obligation free estimate.

Top