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TRUSTED BY MASON NECK, VA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon204
    Verified insulation services reviews

Find Insulation pros in Mason Neck

Avatar for Prudent Homes
Prudent Homes
4.7(
236
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"David and his team were very professional and the work they did was excellent---we could tell the difference the next day. The temperature on the 2nd floor is several degree lower than before due to the new insulation and feels much more comfortable. David has solid knowledge regarding insulation and he explains things clearly. Definitely would recommend David and Prudent Homes to my friends and neighbors."
25 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for USA Insulation of Fairfax County
USA Insulation of Fairfax County
5.0(
6
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

USA Insulation of Fairfax County provides energy-efficient insulation solutions designed to make homes more comfortable and cost-effective year-round. As part of the trusted USA Insulation network, we specialize in premium injection foam insulation, attic insulation, air sealing, band joist and crawl space solutions. Our team helps homeowners reduce energy loss, lower utility bills, and improve indoor comfort with minimally invasive installation methods. We are committed to quality workmanship, honest recommendations, and outstanding customer service. From consultation to completion, USA Insulation of Fairfax County delivers reliable results that help protect your home and maximize energy savings.

Band Joist
Band Joist
Band Joist
Injection Foam
Injection Foam

+3

24 neighbors recently requested a quote
Avatar for DMV Insulation
DMV Insulation
5.0(
6
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"DMV Insulations is a great company to work with. The company focuses on your personal needs, always on time, and great customer service! Mark was able to answer any questions I had, and provided me with useful information. I would recommend this company to anyone with attic insulation needs."
Fiberglass Blow-in
Sanctuary insulation install.
Save energy, reduce waste, and lower your carbon footprint.
Loose fill insulation install.
Additional Photos

+5

Response time1 day
Response rate100%
8 neighbors recently requested a quote
Avatar for Comfenergy, LLC
Comfenergy, LLC
4.6(
54
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Comfenergy was very professional thorough from the in-person estimate thru installation. Even though we didnt have a full energy audit, they still go over your entire home and tell you what should and what needs to be done. Some of the little things we did ourselves, or had our handyman. Then Comfenergy did the big part, seal and insulate the attic. We still had late 80's insulation and never a sealing done. It ended up being over an 8 hour project. They were not the cheapest estimate, but definitely the most in-depth review and recommendations provided. The two man team that did the actual work were very professional, showed us the work as the progressed, and good clean up job after all was done."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+68

Response time1 day
20 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Discount Energy Services
Discount Energy Services
4.3(
89
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 1984

Free estimates

Warranties offered

"We had a great experience with Discount Energy Services. They insulated our entire attic and crawl space, and from start to finish they were professional, responsive, and easy to work with. The turnaround time was impressively quick, the quality of the work was excellent, and we felt the value was very good for the scope of the project. The team was efficient, knowledgeable, and clearly took pride in doing the job well. We really appreciated how smoothly the whole process went and would gladly recommend Discount Energy Services to anyone looking for high-quality insulation work."
Additional Photos
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+2

Response time1 day
17 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Northern Virginia Insulation and Exteriors, LLC
Northern Virginia Insulation and Exteriors, LLC
4.1(
159
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"I am very pleased with how my attic insulation project turned out. when the company came to my house to give an estimate they evaluated my current insulation, told me what I needed to bring my home up to the current standards for attic insulation. (r49) more importantley they told me what I didn't need. I highly recommend this company for your insulation project."
Gallery
31 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Founders Insulation
Founders Insulation
4.9(
17
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"The company did a good job replacing old insulation in our attic. There was a communication hick-up but the project manager we worked with - Jamie - was able to correct and resolve the issue."
Exterior Walls
Exterior Walls
Roof line
Exterior Walls
Exterior Walls

+11

Response time12 hrs
277 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for The Fifth Fuel of Virginia, LLC
The Fifth Fuel of Virginia, LLC
4.6(
58
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"Louis and his partner we very professional and thorough. They initially put down drop cloths to protect our floors and nearby items. The precisely installed the insulation to match up with what was already on the walls. I had 1 area that we could not clear out completely due to some heavy shelving, and they worked around the shelving and still did a great job. They ensured the new insulation was mounted correctly and attached well with the insulation that was already on the wall. They also fixed up with tape some adjacent pieces of insulation to make it look much neater. When they were finished to thoroughly cleaned up where they had performed the work. I am very satisfied with their work, They did a great job. Thank you"
Response time1 day
67 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for 3 PROS Basement System
3 PROS Basement System
3.9(
38
)

Serving Mason Neck, VA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Excellent service and professional work. The only problem was a broken sprayer for which there was no spare that delayed completion. The company refunded our extra hotel night and the owner John LeVan came out personally to ensure clean-up was done correctly and that their work met our expectations. This was also the only company of four that gave an appraisal that provided health and safety information on the product and how ventilation should be performed!!!"
Crawl Space Before Picture
Finished!
Beautiful Encapsulated Crawl space
SaniDry Sedona
Spray Foamed walls

+32

Response time1 day
64 neighbors recently requested a quote
Recommended by90%of homeowners
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Insulation questions, answered by experts

You do not always need to remove old insulation before adding new. If the existing insulation is in good condition—not wet, physically damaged, moldy, or infested with pests—you can add new insulation directly on top of it for a compounding effect. You can also mix different types, such as adding blown-in insulation around existing fiberglass batts.

However, removal is recommended if the old insulation is compromised by water damage or pests. You should also remove it if you plan to install a different type of insulation, like switching from roll or batt insulation to spray foam. If the existing insulation is very old or damaged, you will likely get more benefit from removing it and starting fresh.

If you’re a savvy DIYer around the house, own the basic tools, and have enough time on your hands, you can definitely install fiberglass insulation yourself. Doing the work yourself will certainly keep overall insulation costs down. However, if you’re not confident in your handy skills around the house, call in a professional.

Mold can grow on garage ceiling insulation, which is why it’s important to install a vapor barrier behind the insulation and keep the space cooled and heated as you would your living area. Doing so will more or less eliminate the risk of mold growing on your garage ceiling insulation. You can also install a self-draining dehumidifier to help remove moisture, or opt for a foam board insulation or spray foam insulation that won’t harbor moisture and mold.

Pipes in your house can freeze after six hours or so if you lose power and temperatures are below freezing. You can prepare for potential power outages by winterizing your pipes with insulation. Also, whenever temperatures drop below 20 degrees Fahrenheit, turn your faucets on very low and leave them dripping until temperatures rise.

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

The Mason Neck, VA homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.