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Avatar for Prudent Homes
Prudent Homes
4.7(
236
)

Serving Merrifield, 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."
26 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 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

25 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

"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
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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 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 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 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(
58
)

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
69 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Comfenergy
Comfenergy
3.9(
50
)

Serving Merrifield, VA and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"From the start of the estimate with Jon to the insulation project with the Team Leader Carlos, the project went well as expected. Jon was very professional and knowledgeable. He did not try to up-sale services I did not need, and I appreciate his honesty. Jon went over the appropriate insulation for the attic and the garage ceiling to bring our home to a comfortable level. Carlos and his crew did a great job communicating with me while performing the insulation. Carlos immediately notified me of a leak he discovered from the attic fan and temporarily paused the work on the attic and moved to the garage ceiling insulation while I addressed the leak. As a customer, the only comments/suggestions I would give to the crew is: (1) make sure they keep their tools and materials off the lawn (2) make sure the plastic wraps from the materials they use and trash does not get blown away to the neighbor's yard/driveway, and finally, (3) ask the homeowner which bathroom the crew can use while on-site. Overall, I am very happy with Comfenergy and their service. In fact, I have already recommended them to a curious neighbor."
Attic before
Attic after
Historic Waterford Home
Historic Plaque
Crawl space before

+6

Response time1 day
82 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for 3 PROS Basement System
3 PROS Basement System
3.9(
38
)

Serving Merrifield, VA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"The process was explained in great detail which helped me understand what was recommended to have done and why. The Comfenergy contractors that came onsite were super friendly and respectful. They did a great job and showed me the work that they did. The only issue I had was that they didn't know what to charge me after the work was done. I had to look up what I had put down on the deposit, then let them know the balance. The next company to come out was Atlantic Duct Cleaning for the duct cleaning and the Aeroseal duct sealing. Again, the contractors were friendly and thorough. They showed me before and after pictures of the ducts, and I got a report of the Aeroseal results from before to after. I can feel the difference in the warmth of the home. I would recommend both companies."
Crawl Space Before Picture
Finished!
Beautiful Encapsulated Crawl space
SaniDry Sedona
Spray Foamed walls

+32

Response time1 day
62 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for AMO Home Solutions LLC
AMO Home Solutions LLC
5.0(
1
)

Serving Merrifield, VA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

At AMO Home Solutions LLC, we specialize in identifying why your utility bills are high and how to fix them. Our certified team performs deep-dive energy audits to ensure your home is healthy, comfortable, and built to last.\n\nOur specialized services include:\nPrecision Diagnostics:- Blower door testing and combustion safety analysis.\nThermal Enclosure:- High-performance attic and floor insulation.\nAir Sealing:- Targeted sealing to eliminate drafts and energy waste.\nCrawlspace Remediation:- Leak detection and professional vapor barrier installation.\nSystem Safety:- Comprehensive testing of furnaces, gas water heaters, and dryer vents.\n

Fredericksburg VA
Fredericksburg VA
Fredericksburg VA
Fredericksburg VA
Fredericksburg VA

+40

7 neighbors recently requested a quote
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Insulation questions, answered by experts

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

The best way to reduce heat upstairs is to release it by opening a window. Hot air rises, and if you can create some airflow by opening a window upstairs and also one on a lower level, the hot air should be pushed out of the home. Remember that fans pointing out the window do a much better job of circulating air than fans pointing into the home.

The primary reason that insulation saves you money over time is that it reduces your energy bills by making your home more energy efficient. A crucial part of an insulation system is a properly installed vapor barrier. Local building codes dictate whether your insulation requires a vapor barrier based on the type installed. While some high-quality wool insulation may not technically need a vapor barrier, most municipalities still require one to meet code.

An insulated garage door is a great long-term investment if it’s within your budget. They save energy and give the door year-round usability. In other words, the door pays for itself after a few nasty winters. Most modern garage doors already have a fair amount of insulation, so look into those options if you don’t feel comfortable splurging.

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

The Merrifield, VA homeowners’ guide to insulation services

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