Why Insulate Your House?

The function of insulation is to minimize the radiation and convection transfer of heat with a minimum of solid conduction so that your home stays warmer in cool weather and cooler in warm weather. Heating and cooling account for 50 to 70% of the energy used in the average American home. Inadequate insulation and air leakage are leading causes of energy waste in most homes.

Saves Money
Not only saves money on your electric and gas bills but on a larger scale with local and national resources.

Uniform Temperature
Makes your home more comfortable by helping to maintain a uniform temperature throughout the house.

Overall Comfort
Makes walls, ceilings, floors, rooms and closets warmer in the winter and cooler in the summer.

Stops Drafts
The air that makes it into your walls due to poor insulation will find its way into your home, even through electrical sockets and light switches.

Stops A/C From Working So Hard
If there is no insulation in your home that creates an air barrier, then that hot summer air will get inside your home making your AC unit work overtime.

Reduces Allergies
Old insulation can retain the allergens over the years. When this happens, those same allergens can be blown throughout your home.

Contact Us To Set An Appointment

We offer a FREE assessment of your home comfort and energy concerns.

More About Us Get a FREE Estimate

Latest Projects

One of the best ways to demonstrate the quality of work is to show before and after images of our work.

Before & After – Crawlspace

If the crawl space is ventilated, it aids in the elimination of moisture, then fiberglass insulation can be easily installed under the subfloor between the floor joists. If the crawl space isn't ventilated, insulate the walls and floor rather than the subfloor.

Before & After – Basement

Even single walls that are around plumbing, hot water heaters, the A/C or furnace should be insulated so radiant energy is not transferred or pulled from the sources attempting to cool or heat your home and resources.

Before & After – Basement

Blanket insulation in a large basement. Concrete is a poor insulator. Standard thickness basement concrete walls have an R-value of approximately 1.1 - about the same as 3/4" particleboard. This makes massive surfaces from which to lose or waste energy.

What our clients say

Read what our customers are saying:

Brad and his assistant Irwin were prompt, courteous,professional and worked non-stop until the job was completed. They added insulation to rim joists along walls in my basement, used foam board insulation between the joists and then spray foam sealant. The entire ceiling was then insulated and a protective cover of batting was applied. They moved items in the storage area, cleaned up any loose materials and placed my items back along the walls. I never felt like someone was trying to over sell me on any work. Brad broke down the cost, as I requested, because I was initially only requesting he do the joists. What he proposed doing to the ceiling made sense to us and his cost was reasonable.

Insulation and Sealing of Unfinished Basement

Outstanding work! Brad (owner) is exceptionally knowledgeable and knows his trade. His team did a superb job which included: 1) removing the original fiberglass R19 batting 2) identifying and sealing all airleaks 3) inspecting and ensuring all HVAC duct work was sealed 4) installing insulating covers on recessed lighting fixtures 5) installing new soffit baffle trays to ensure good air-circulation from the soffit vents to the underside of the roof-deck 6) blowing in new insulation to an R49 value. Crew was professional, polite - highly recommend NVI.

Air Seal and Insulate Attic

Estimate was the lowest. Guys were on time, careful with equipment and made sure everything was cleaned up afterwards. Great!!!!

Christina P, Sterling VA

They went over the problem (water pipes freezing because of missing insulation) every step of the way. He communicated clearly and was honest, on time, and did a great job at a reasonable price. It's been below freezing for several days, and the pipes have not frozen like before. The company that tried to fix the problem before did a lousy job and the pipes froze the following winter. I would highly recommend Brad and his crew!

John F, Reston, VA

Came on time to give an estimate for blown-in insulation. Good job. They even took the unneeded plywood boards in the attic for me. Their price was the best I found.

Herman B, Fairfax, VA

Very courteous and conscientious. I am very happy with the work they did for me.

Ted B, Arlington, VA

You arrived on the job prepared, almost 60 bags of cellulose insulation. Workers were respectful and professional. A post inspection of a very complex attic with three separate areas revealed a uniformly good job and proper distribution of cellulose throughout. Above average job with clean up as well. Would hire again.

Andrea K, Purcellville, VA

Highly recommended. Great price, flexible schedule, awesome results.

James F, Haymarket, VA

The project was top notch. Not only did they consistently show up on time, but they finished the project early and were willing to reschedule the final walk through multiple times to accommodate our schedule. Final project turned out great!

Blown-In Insulation

Rolled/Batt Insulation

Radiant Barriers

Blanket Insulation

Closed Cavity Insulation

Plumbing Insulation