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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon134
    Verified insulation services reviews

Find Insulation pros in Merrifield

Avatar for Prudent Homes

Prudent Homes

3012 PS Business Center Dr
4.78(
229
)
Approved Pro

Prudent Homes

3012 PS Business Center Dr
4.78(
229
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
131 local quotes requested

Prudent Homes (703) 361-7600 is a full service insulation contractor established in 2003. We are one of the top rated contractors based in the Washington Metropolitan area. Servicing Northern Virginia, Maryland, and Washington D.C. Prudent Homes is a 9 time Angie's List Super Service Award Winner. We are accredited by the Spray Polyurethane Foam Alliance in the science of spray foam building envelopes. We are Class A Residential Home Builder with a Class A Building Envelope Specialty Designation.

"It went great. They provided a quote in a timely fashion. Knowledgeable. No sales people. They know their stuff and offered me a great service at a great price. They were in and out in one day."

Arielle M on February 2025

Prudent Homes (703) 361-7600 is a full service insulation contractor established in 2003. We are one of the top rated contractors based in the Washington Metropolitan area. Servicing Northern Virginia, Maryland, and Washington D.C. Prudent Homes is a 9 time Angie's List Super Service Award Winner. We are accredited by the Spray Polyurethane Foam Alliance in the science of spray foam building envelopes. We are Class A Residential Home Builder with a Class A Building Envelope Specialty Designation.

"It went great. They provided a quote in a timely fashion. Knowledgeable. No sales people. They know their stuff and offered me a great service at a great price. They were in and out in one day."

Arielle M on February 2025


Avatar for Comfenergy, LLC

Comfenergy, LLC

45714 Oakbrook Ct
4.70(
50
)
Approved Pro

Comfenergy, LLC

45714 Oakbrook Ct
4.70(
50
)
Approved Pro
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
46 local quotes requested

Over 20 years of experience in the home comfort and efficiency field. We find solutions to the issues that your HVAC company can't. Dusty homes, hot and cold spots, high utility bills, drafty fireplaces, rooms above garages, cold floors, dirty carpet edges, and much more can be fixed by us. We provide "comfort and energy solutions".

"A total disaster. An inexperienced, untrained crew created more issues than I had before they began their work. My goal was to increase comfort levels in my senior-living, one-level home built on a slab that is super cold in the winter. I hate as a senior being taken advantage of. I was very naive. I have spent thousands and now am having to throw more good money after bad to try and make my home comfortable to live in. It is so bad; I am ready to sell! And I can’t afford to after all I have spent, without taking a loss on the sale. They dense packed my walls and now I am colder; in the process, they removed the flashing above my windows which now leak. I had to hire a window installer to replace the flashing that their incompetent crew removed. They failed to put back the siding properly, so it was hanging off my house. Once again, I had to hire a handy man to refasten the siding the crew removed while dense packing. And the dense packing was useless as it didn't enter the cavities that already had batt insulation. While spray foaming triangle boxes, boots, and plenum, they sealed off all my dampers resulting in zero air flow. They reluctantly came back and had to dig out the dampers that they had foamed over. In fact, they over-foamed at junction boxes, boots, and plenum so that HVAC techs couldn't even tune my system. There is 2 feet of foam, yet hot air is rushing out of the flexible ducts that weren’t sealed properly. Yet there remain gaps on my boxes, boots, and plenum. Just today, a HVAC tech walked me around the attic, and I could feel the hot air rushing into my attic at the junctions, boxes, boots, and plenums that are all wide open; that I paid to have sealed. I almost threw up; I am heating my attic! And the tech said it looks like a dog was in my attic as the Comfenergy crews failed to put back my blown-in fiberglass insulation they removed when trying to foam, so there is no insulation at the boxes and boots. They were simply careless and failed to rake it back and even out my insulation resulting in further cold spots I didn't have. In short, I now will have to hire another company to blow in more insulation and make sure it is even, so I don't have cold/hot spots. Additionally, they left the lights on in the attic, didn't replace the attic access foam barrier, and failed to seal the major penetrations including light cans/recessed lights and supply vents I paid for. Next came the bathroom exhaust fans; they were installed improperly and didn't vent because the outside flaps remained closed, while inside a cold draft came in my bathroom because the foam sealing, I paid for wasn't done properly. So now both my bathrooms are drafty. They were cold; now they are cold AND drafty. The HVAC tech today remarked he felt badly that I have two or more space heaters in every room, including the bathrooms! I strongly recommend carefully watching the crew if you ever choose to allow them to do any work for you. I trusted them. And I regret that. I was naive. I was cold. Rather I am still cold! I trusted their salesperson. The crew that did mine were either let go or quit. In fact, one of them still calls seeking to do side work. I politely declined. I suggest you do the same and seek a competent company that you can trust, does the work you paid for properly, and doesn't damage your home."

Charles K on November 2022

Over 20 years of experience in the home comfort and efficiency field. We find solutions to the issues that your HVAC company can't. Dusty homes, hot and cold spots, high utility bills, drafty fireplaces, rooms above garages, cold floors, dirty carpet edges, and much more can be fixed by us. We provide "comfort and energy solutions".

"A total disaster. An inexperienced, untrained crew created more issues than I had before they began their work. My goal was to increase comfort levels in my senior-living, one-level home built on a slab that is super cold in the winter. I hate as a senior being taken advantage of. I was very naive. I have spent thousands and now am having to throw more good money after bad to try and make my home comfortable to live in. It is so bad; I am ready to sell! And I can’t afford to after all I have spent, without taking a loss on the sale. They dense packed my walls and now I am colder; in the process, they removed the flashing above my windows which now leak. I had to hire a window installer to replace the flashing that their incompetent crew removed. They failed to put back the siding properly, so it was hanging off my house. Once again, I had to hire a handy man to refasten the siding the crew removed while dense packing. And the dense packing was useless as it didn't enter the cavities that already had batt insulation. While spray foaming triangle boxes, boots, and plenum, they sealed off all my dampers resulting in zero air flow. They reluctantly came back and had to dig out the dampers that they had foamed over. In fact, they over-foamed at junction boxes, boots, and plenum so that HVAC techs couldn't even tune my system. There is 2 feet of foam, yet hot air is rushing out of the flexible ducts that weren’t sealed properly. Yet there remain gaps on my boxes, boots, and plenum. Just today, a HVAC tech walked me around the attic, and I could feel the hot air rushing into my attic at the junctions, boxes, boots, and plenums that are all wide open; that I paid to have sealed. I almost threw up; I am heating my attic! And the tech said it looks like a dog was in my attic as the Comfenergy crews failed to put back my blown-in fiberglass insulation they removed when trying to foam, so there is no insulation at the boxes and boots. They were simply careless and failed to rake it back and even out my insulation resulting in further cold spots I didn't have. In short, I now will have to hire another company to blow in more insulation and make sure it is even, so I don't have cold/hot spots. Additionally, they left the lights on in the attic, didn't replace the attic access foam barrier, and failed to seal the major penetrations including light cans/recessed lights and supply vents I paid for. Next came the bathroom exhaust fans; they were installed improperly and didn't vent because the outside flaps remained closed, while inside a cold draft came in my bathroom because the foam sealing, I paid for wasn't done properly. So now both my bathrooms are drafty. They were cold; now they are cold AND drafty. The HVAC tech today remarked he felt badly that I have two or more space heaters in every room, including the bathrooms! I strongly recommend carefully watching the crew if you ever choose to allow them to do any work for you. I trusted them. And I regret that. I was naive. I was cold. Rather I am still cold! I trusted their salesperson. The crew that did mine were either let go or quit. In fact, one of them still calls seeking to do side work. I politely declined. I suggest you do the same and seek a competent company that you can trust, does the work you paid for properly, and doesn't damage your home."

Charles K on November 2022


Avatar for Discount Energy Services

Discount Energy Services

1520 Belle View Blvd
4.36(
81
)
Approved Pro

Discount Energy Services

1520 Belle View Blvd
4.36(
81
)
Approved Pro
Customers say: Terrific value
91 local quotes requested
41 years of experience

Discount Energy Services has been insulating homes in Northern Virginia and the Washington, D.C. Metro area for over 30 years, and we have insulated more older homes than any of the other insulation contractors. The owner has over 40 years experience, and has always been specialized in insulating the older homes. Please call to have questions about your home insulation needs personally answered, and for an appointment for your free insulation estimate. After consulting with us, you may decide which type of insulation, and how much insulation you want after we give you your insulation suggestions, and we will also let you know what we recommend most. We will send our energy conservation specialist to your home to measure, and give you your free written prices for the energy saving options best suited for your home, whenever you are ready. Thanks again for checking with us. We guarantee the best job at the best price, and look forward to your call.

"Job done beautiful"

Thomas W on October 2024

Discount Energy Services has been insulating homes in Northern Virginia and the Washington, D.C. Metro area for over 30 years, and we have insulated more older homes than any of the other insulation contractors. The owner has over 40 years experience, and has always been specialized in insulating the older homes. Please call to have questions about your home insulation needs personally answered, and for an appointment for your free insulation estimate. After consulting with us, you may decide which type of insulation, and how much insulation you want after we give you your insulation suggestions, and we will also let you know what we recommend most. We will send our energy conservation specialist to your home to measure, and give you your free written prices for the energy saving options best suited for your home, whenever you are ready. Thanks again for checking with us. We guarantee the best job at the best price, and look forward to your call.

"Job done beautiful"

Thomas W on October 2024


USA Insulation of Central Maryland

7389 Washington Blvd
No reviews yet

USA Insulation of Central Maryland

7389 Washington Blvd
No reviews yet
5 years of experience

USA Insulation is a national franchise that specializes in premium wall insulation that's ecofriendly and ideal for retrofit applications. The company has insulation more than 100,000 homes nationwide. Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills. The company is headquarter in Cleveland, Ohio with locations across the county. This local branch is located just outside Martinsburg, West Virginia. USA Premium Foam is a unique foam-in-place insulation that performs better than other retrofit insulation. The insulation is eco-friendly and the durable material works in any type of home. USA Premium Foam Insulation makes installation is a breeze, and with our one-step retrofit process ensures your home's thermal envelope is tightly sealed. The benefits of USA Premium Injection Foam Insulation include: - Better home comfort - Energy savings - Lower utility bills - Outperforms other retrofit insulation - Is environmentally friendly - Installs in any type of home - American-made Ask us about our Senior Citizen Discount.

USA Insulation is a national franchise that specializes in premium wall insulation that's ecofriendly and ideal for retrofit applications. The company has insulation more than 100,000 homes nationwide. Established in 1977 and incorporated in 1985, USA Insulation has saved thousands of customers millions of dollars on their heating and air conditioning bills. The company is headquarter in Cleveland, Ohio with locations across the county. This local branch is located just outside Martinsburg, West Virginia. USA Premium Foam is a unique foam-in-place insulation that performs better than other retrofit insulation. The insulation is eco-friendly and the durable material works in any type of home. USA Premium Foam Insulation makes installation is a breeze, and with our one-step retrofit process ensures your home's thermal envelope is tightly sealed. The benefits of USA Premium Injection Foam Insulation include: - Better home comfort - Energy savings - Lower utility bills - Outperforms other retrofit insulation - Is environmentally friendly - Installs in any type of home - American-made Ask us about our Senior Citizen Discount.


American Home Contractors of VA, LLC

14155 Sullyfield Cir
4.78(
385
)

American Home Contractors of VA, LLC

14155 Sullyfield Cir
4.78(
385
)
Customers say: True professional
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

For over 35 years, American Home Contractors has provided exterior household services and upgrades across Maryland, Washington DC, and Northern Virginia. American Home takes great pride in ensuring customer satisfaction and commits to delivering the highest quality of work when renovating any home.

"American Home Contractors and Hugo in particular were great to work with. We had multiple jobs done which required several trips and Hugo kept us informed and worked around several weather delays. He relocated and installed a new attic fan, hooked up the bathroom fan to a new roof vent, insulated a pipe in the attic, installed apron flashing on four windows, painted the flue vent, reconnected some lose siding and replaced three pieces of rotted trim and painted it. The work appears to be top notch and we appreciate the hard work and long hours Hugo put in! I would definitely recommend this company and most certainly Hugo to everyone. We also had American Home Contractors replace our gutters and install gutter guards. They did an excellent job with that as well."

Barry R on February 2025

For over 35 years, American Home Contractors has provided exterior household services and upgrades across Maryland, Washington DC, and Northern Virginia. American Home takes great pride in ensuring customer satisfaction and commits to delivering the highest quality of work when renovating any home.

"American Home Contractors and Hugo in particular were great to work with. We had multiple jobs done which required several trips and Hugo kept us informed and worked around several weather delays. He relocated and installed a new attic fan, hooked up the bathroom fan to a new roof vent, insulated a pipe in the attic, installed apron flashing on four windows, painted the flue vent, reconnected some lose siding and replaced three pieces of rotted trim and painted it. The work appears to be top notch and we appreciate the hard work and long hours Hugo put in! I would definitely recommend this company and most certainly Hugo to everyone. We also had American Home Contractors replace our gutters and install gutter guards. They did an excellent job with that as well."

Barry R on February 2025


Go Green Incentive

7413 Wilhelm Dr
5.00(
4
)

Go Green Incentive

7413 Wilhelm Dr
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our primary goal is to assist forward-thinking, thrifty individuals and businesses with the implementation of energy efficient services, ranging from energy audits to building automation. Contact us today to learn more about the many ways that we can reduce your individual or business carbon footprint and save money!

"It went great! Very professional work. They made me feel comfortable that my issue was handled."

Cidney K on April 2019

Our primary goal is to assist forward-thinking, thrifty individuals and businesses with the implementation of energy efficient services, ranging from energy audits to building automation. Contact us today to learn more about the many ways that we can reduce your individual or business carbon footprint and save money!

"It went great! Very professional work. They made me feel comfortable that my issue was handled."

Cidney K on April 2019


Home Genius Exteriors

8201 Corporate Dr.
4.87(
282
)

Home Genius Exteriors

8201 Corporate Dr.
4.87(
282
)
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Elevate your home with Home Genius Exteriors, setting the standard in Maryland and Washington DC by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It’s time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

"Home Genius Came by to install a roof on my home! The project was completed in a timely fashion and the crew worked very hard and was professional throughout the process! And the job was done well and to my standards. The sales rep Ty Pearmon was very professional, knowledgeable and explained all of the products and process regarding my roof. And the project manager Angel Martinez was very attentive to my every question and concern, and even explained the process of the roof with photos and expertise. Thank you to home Genius for their hard work and professionalism. I would recommend them to all family and friends!"

Alfreda E on September 2025

Elevate your home with Home Genius Exteriors, setting the standard in Maryland and Washington DC by offering full-service solutions for roofing, siding, windows, doors, gutters and insulation. We support our veterans and communities by supporting local and national charitable organizations through our Home Genius Cares initiative. With an Owens Corning® Platinum Preferred designation, we also offer flexible payment options, industry leading warranties and a wide range of premium products tailored for your home. It’s time for a different experience, entrust your next home project to a genius and schedule your free inspection today!

"Home Genius Came by to install a roof on my home! The project was completed in a timely fashion and the crew worked very hard and was professional throughout the process! And the job was done well and to my standards. The sales rep Ty Pearmon was very professional, knowledgeable and explained all of the products and process regarding my roof. And the project manager Angel Martinez was very attentive to my every question and concern, and even explained the process of the roof with photos and expertise. Thank you to home Genius for their hard work and professionalism. I would recommend them to all family and friends!"

Alfreda E on September 2025


Contracting Solutions of NOVA.

3649 Bracknell Drive
No reviews yet

Contracting Solutions of NOVA.

3649 Bracknell Drive
No reviews yet
24 years of experience

I am a General Contractor Class "A" that provides services in new construction, addition & remodeling. My company has been in the area of Northern Virginia for the last 7 years, but brings experience for over 15 years. We are licensed with General Liability & Workers comp. insurance.

I am a General Contractor Class "A" that provides services in new construction, addition & remodeling. My company has been in the area of Northern Virginia for the last 7 years, but brings experience for over 15 years. We are licensed with General Liability & Workers comp. insurance.



Salinas Construction

803 Hollywood Avenue
No reviews yet

Salinas Construction

803 Hollywood Avenue
No reviews yet
36 years of experience

Salinas Construction and its employees have experience in home improvements. Home remodeling is at the core of our company's foundation since 1989 when Miguel began working in construction most of his jobs were home improvement. Ever since then residential work has been part of our companies future.

Salinas Construction and its employees have experience in home improvements. Home remodeling is at the core of our company's foundation since 1989 when Miguel began working in construction most of his jobs were home improvement. Ever since then residential work has been part of our companies future.

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Insulation questions, answered by experts

Closed-cell spray foam insulation itself serves as a vapor barrier (or vapor retarder). However, you may need to install a vapor barrier if you have open-cell spray foam insulation. When in doubt, work with a professional insulation contractor, as they can provide more detail about the specific needs of your home in your climate.

Insulation can be easy to install, depending on the condition of your walls, but there are many safety considerations and potential challenges involved. For example, most types of insulation are made from materials that can cause irritation if inhaled or if they come into contact with your skin. Additionally, installing insulation incorrectly can actually make moisture issues in your home worse.

You should insulate ducts in a crawl space if you live in a colder climate or you run your air conditioning for most of the year. Insulating ducts doesn't take too much time or investment and can make a big difference on your electricity bill. While this is more difficult in a crawl space, if any ductwork is being done either you or a professional will be down there anyway. A bonus benefit is since they will be putting off less hot or cold air they'll be less attractive to any unwanted pests in the home.

If you have a number of large icicles on your roof, you may have an issue with insulation. This is particularly true if you’re also dealing with ice dams. A roofing contractor can diagnose potential insultation issues and help you come up with a game plan to solve them.

Doubling the insulation in your home also doubles the R-value of said insulation. In other words, by adding more insulation, you can reduce the heat loss by half. Most homes benefit from increasing insulation. Older homes, in particular tend to have less insulation as is, so doubling your insulation could drastically reduce your energy bills, keep your home more comfortable, and take the strain off your HVAC system.

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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.