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Avatar for Prudent Homes
Prudent Homes
4.7(
238
)

Serving Merrifield, VA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"Prodent Homes did an excellent job with our attic remediation. They removed the old insulation, sanitized and re-insulated the entire attic. The owner David was easy to communicate. The crew lead Jose was very experienced and communicated well. The job was done professionally. We are happy with the results and will use them again if we have another insulation job."
36 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for USA Insulation of Fairfax County
USA Insulation of Fairfax County
5.0(
6
)

Serving Merrifield, 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

20 neighbors recently requested a quote
Avatar for Comfenergy, LLC
Comfenergy, LLC
4.6(
54
)

Serving Merrifield, VA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"I've been trying to find an expert in insulation for months to come out and tell me out to properly insulate around a removed chimney and Comfenergy was the expert I needed. Even though the insulation part of the job was too small for Comfenergy (wasn't above their minimum quote value) they were happy to give me their expert advice and I appreciate the time spent as I now know what to ask the roofing contractor to do in order to insulate this correctly. Thanks!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+68

Response time1 day
Response rate100%
25 neighbors recently requested a quote
Avatar for Discount Energy Services
Discount Energy Services
4.3(
89
)

Serving Merrifield, 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 time7 hrs
Response rate100%
16 neighbors recently requested a quote
Avatar for Northern Virginia Insulation and Exteriors, LLC
Northern Virginia Insulation and Exteriors, LLC
4.1(
159
)

Serving Merrifield, 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 The Fifth Fuel of Virginia, LLC
The Fifth Fuel of Virginia, LLC
4.6(
59
)

Serving Merrifield, VA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"These guys were the benchmark for contracting work. Quick estimates on pricing that they stuck to. Timely quality work, and a great clean-up effort. 10/10 would recommend for insulation work."
Response time1 day
44 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Comfenergy
Comfenergy
3.9(
50
)

Serving Merrifield, VA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"They wanted to inject very expensive sealant into the ducts to seal the seams. The company I hired used insulating tape over the seams instead, for a greatly reduced price. The total price difference in their proposal and the company that I hired was about $4500."
Attic before
Attic after
Historic Waterford Home
Historic Plaque
Crawl space before

+6

Response time1 day
103 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Capital Insulation, LLC
Capital Insulation, LLC
4.7(
70
)

Serving Merrifield, VA and surrounding areas

In business since 2005

Free estimates

Small jobs welcome

"Capital Insulation just finished a two-day project at my home, removing old, poor quality attic insulation and replaced it with 21 inches of blown fiber glass insulation. They sealed joints, insulated and sealed around sky lights, recessed lights, put new covers over recessed ceiling lights, etc. Jon, team lead, is awesome, a true professional, and task focused to deliver superior results. The crew worked together well with a positive work attitude which I admired. You can see that they enjoy their work and take pride in what they do. Since most of us home owners don't get up into our attics much, if at all, it is important to find a company you know will do the work you pay for. This is a high-quality company with integrity that will do outstanding work for you and you will no longer need to worry about what is going on in your attic. Karl, the company owner, was also in the attic doing work at my home and pointing out to me things he found and offered solutions for fixing problems"
Insulation after.
Attic after removal.
Insulation before.
Before Encapsulation
After Encapsulation

+19

Response time2 days
Recommended by96%of homeowners
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Drywall Insulation questions, answered by experts

If your home’s foundation shifts slightly over time, any seams in the drywall represent the weakest point in the wall, leading to cracks. If your home has significant changes in temperature and humidity, this can cause the drywall to swell and contract slightly, causing a crack at the weak point of the seam. If your drywall installer did a poor job securing the panels to the wall studs, this could cause a weak layout and cracks in the seams.

Options include bricks, natural stone, and concrete blocks. Choose based on durability, aesthetics, and budget.

The best way to make long, straight cuts is to use a utility knife and a T-square to score the sheet, snap along the score, and then finish the cut by cutting through the paper on the opposite side with the utility knife. If you’re making small cuts, curved cuts, or cutouts for electrical boxes or light fixtures, you can use a manual jab saw to keep costs down, but an electric spiral saw or oscillating multi-tool will get the cleanest, fastest cuts possible.

Plaster is denser, harder, and more porous than drywall, so it absorbs moisture differently. This means you’ll often need more prep work, such as thorough sanding, patching, and priming with a high-quality bonding primer. Additionally, you may need more coats of paint to achieve even coverage. While the process takes more time, it helps ensure a durable and professional-looking result.

Pros ensure smooth finishes and lasting repairs, avoiding visible patches.

The Merrifield, VA homeowners’ guide to drywall insulation services

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