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Insulation install or upgrade pros in Gainesville
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
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.
"After my call to Discount Energy Services, I knew who was coming and when to evaluate my attic insulation. The estimate was prepared on-site with pricing. The workers arrived and knew exactly what they were to accomplish, which they confirmed with me. They prepared the entire path with clean drop cloths and created a plastic drape around my attic stairs. The foreman was glad to explain any aspect of the procedure. My attic was upgraded to R-49 and the difference is notable."
Brian D on December 2022
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.
"After my call to Discount Energy Services, I knew who was coming and when to evaluate my attic insulation. The estimate was prepared on-site with pricing. The workers arrived and knew exactly what they were to accomplish, which they confirmed with me. They prepared the entire path with clean drop cloths and created a plastic drape around my attic stairs. The foreman was glad to explain any aspect of the procedure. My attic was upgraded to R-49 and the difference is notable."
Brian D on December 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
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
Northern Virginia Insulators is a U.S. Armed Forces veteran owned and operated insulation company focused on providing excellent customer service, value and professional workmanship. Northern Virginia Insulators was established on the basis of integrity and hopes of earning their customers trust in the process of servicing them. We will give you the fairest price in the industry and if by chance we are undersold, we will make every effort possible to meet any competitors price. We don't practice up-selling to our customers on services they don't need. We will investigate your home for possible solutions and advise you on the most affordable and economically sound ways for improving your living conditions. We specialize in dry insulation applications to include blown-in and rolled/batt solutions. Armed with an array of insulation products, we will discuss the positives and negatives of each option until we find the product that suits you. We are a small company with no vision to become the largest insulation house in the area. We want to bring you a personal and up close approach to servicing your needs. Retaining that personal appeal when communicating with our customers is important to us. We don't want our customers feeling lost in the process of servicing them. Estimates are performed by the Owner and all work is performed by or supervised by the Owner as well. Customers will have direct contact with the owner of the company from start to finish of all projects. In addition, Northern Virginia Insulators does not use subcontractors. We won't trust our work in the hands of those with no vested interest in the results you see and ultimately live with. Improving your living conditions and giving you peace of mind that the work was done with care and accuracy is our primary goal. Appointments are available 7 days a week.
"Northern Virginia Insulators removed and replaced the blown-in insulation in part of my attic after my living room ceiling had to be replaced. Brad was prompt, professional, and accompanied the crew on the job, which required two visits. Their price was very reasonable and Brad was easy to work with. I would highly recommend this company and will use them again!"
Sarah B on December 2024
Northern Virginia Insulators is a U.S. Armed Forces veteran owned and operated insulation company focused on providing excellent customer service, value and professional workmanship. Northern Virginia Insulators was established on the basis of integrity and hopes of earning their customers trust in the process of servicing them. We will give you the fairest price in the industry and if by chance we are undersold, we will make every effort possible to meet any competitors price. We don't practice up-selling to our customers on services they don't need. We will investigate your home for possible solutions and advise you on the most affordable and economically sound ways for improving your living conditions. We specialize in dry insulation applications to include blown-in and rolled/batt solutions. Armed with an array of insulation products, we will discuss the positives and negatives of each option until we find the product that suits you. We are a small company with no vision to become the largest insulation house in the area. We want to bring you a personal and up close approach to servicing your needs. Retaining that personal appeal when communicating with our customers is important to us. We don't want our customers feeling lost in the process of servicing them. Estimates are performed by the Owner and all work is performed by or supervised by the Owner as well. Customers will have direct contact with the owner of the company from start to finish of all projects. In addition, Northern Virginia Insulators does not use subcontractors. We won't trust our work in the hands of those with no vested interest in the results you see and ultimately live with. Improving your living conditions and giving you peace of mind that the work was done with care and accuracy is our primary goal. Appointments are available 7 days a week.
"Northern Virginia Insulators removed and replaced the blown-in insulation in part of my attic after my living room ceiling had to be replaced. Brad was prompt, professional, and accompanied the crew on the job, which required two visits. Their price was very reasonable and Brad was easy to work with. I would highly recommend this company and will use them again!"
Sarah B on December 2024
USA Home Performance is a BPI-certified company passionate about transforming your home into a healthier, more comfortable, and energy-efficient space. We specialize in insulation, crawlspace, and basement services such as waterproofing and foundation repair. Our dedicated team prioritizes clean, safe air for your family, addressing pollutants and inefficiencies to create a living environment that promotes well-being while reducing energy costs.
"It was fine. They were prompt and gave me an estimate on the spot when they did the inspection. They came the next week or several days after and put in everything. I'll give them 5 stars but they never get back to me until now. It depends if depends if I'm going to use them again if they get back at me and answer all the questions that I have."
sharlene d on May 2021
USA Home Performance is a BPI-certified company passionate about transforming your home into a healthier, more comfortable, and energy-efficient space. We specialize in insulation, crawlspace, and basement services such as waterproofing and foundation repair. Our dedicated team prioritizes clean, safe air for your family, addressing pollutants and inefficiencies to create a living environment that promotes well-being while reducing energy costs.
"It was fine. They were prompt and gave me an estimate on the spot when they did the inspection. They came the next week or several days after and put in everything. I'll give them 5 stars but they never get back to me until now. It depends if depends if I'm going to use them again if they get back at me and answer all the questions that I have."
sharlene d on May 2021
Welcome to DMV Insulation, your trusted partner in creating homes that prioritize comfort, energy efficiency, and tranquility. At DMV Insulation, we specialize in the expert installation of attic insulation, dedicated to transforming your living space into a haven of coziness and serenity. Our Mission: At the core of DMV Insulation's mission is the commitment to enhancing your home environment by seamlessly blending cutting-edge insulation solutions with a passion for sustainability. We believe in creating spaces that not only shield you from the elements but also contribute to a greener and quieter world. Specialization in Attic Insulation: Our focus on attic insulation sets us apart as specialists in this critical aspect of home comfort. The attic plays a pivotal role in regulating indoor temperatures and sound insulation. We bring expertise to ensure that your attic is optimally insulated, providing a barrier against the elements and significantly improving energy efficiency. Energy Efficiency: Experience the transformative power of our insulation solutions that go beyond mere temperature control. By investing in our attic insulation services, you'll witness a substantial reduction in your energy bills. Our solutions are designed to minimize heat transfer, keeping your home cool in the summer and warm in the winter without over-reliance on heating or cooling systems. Noise Reduction: Say goodbye to unwanted disturbances and revel in the tranquility of your home. Our attic insulation not only regulates temperature but also acts as a barrier against external noise. Enjoy a peaceful living environment where the hustle and bustle of the outside world are kept at bay, allowing you to unwind and relax in your sanctuary. Contact us today to embark on a journey toward a more sustainable, peaceful, and cost-effective living space.
"Phillip provided quotes and answered my questions patiently and promptly. While we didn’t proceed with the company due to our specific needs, Phillip was courteous and professional throughout the process."
Pei-Hsuan C on March 2025
Welcome to DMV Insulation, your trusted partner in creating homes that prioritize comfort, energy efficiency, and tranquility. At DMV Insulation, we specialize in the expert installation of attic insulation, dedicated to transforming your living space into a haven of coziness and serenity. Our Mission: At the core of DMV Insulation's mission is the commitment to enhancing your home environment by seamlessly blending cutting-edge insulation solutions with a passion for sustainability. We believe in creating spaces that not only shield you from the elements but also contribute to a greener and quieter world. Specialization in Attic Insulation: Our focus on attic insulation sets us apart as specialists in this critical aspect of home comfort. The attic plays a pivotal role in regulating indoor temperatures and sound insulation. We bring expertise to ensure that your attic is optimally insulated, providing a barrier against the elements and significantly improving energy efficiency. Energy Efficiency: Experience the transformative power of our insulation solutions that go beyond mere temperature control. By investing in our attic insulation services, you'll witness a substantial reduction in your energy bills. Our solutions are designed to minimize heat transfer, keeping your home cool in the summer and warm in the winter without over-reliance on heating or cooling systems. Noise Reduction: Say goodbye to unwanted disturbances and revel in the tranquility of your home. Our attic insulation not only regulates temperature but also acts as a barrier against external noise. Enjoy a peaceful living environment where the hustle and bustle of the outside world are kept at bay, allowing you to unwind and relax in your sanctuary. Contact us today to embark on a journey toward a more sustainable, peaceful, and cost-effective living space.
"Phillip provided quotes and answered my questions patiently and promptly. While we didn’t proceed with the company due to our specific needs, Phillip was courteous and professional throughout the process."
Pei-Hsuan C on March 2025
Locally owner and operated, Affordable Carpet and Flooring is a top rated flooring company in the Northern Virginia area, and has been in business since 1999. David Reading, owner of Affordable Carpet and Flooring is an experienced floor covering licensed contractor, who has worked exclusively in the flooring industry for over 25 years. Our services include the sales and installation of carpeting, hardwood flooring, laminate flooring, and vinyl flooring. We work with you every step of the way, giving you the great service that you deserve at every turn.
"Great , on time quick work price as quoted"
Donald G on March 2025
Locally owner and operated, Affordable Carpet and Flooring is a top rated flooring company in the Northern Virginia area, and has been in business since 1999. David Reading, owner of Affordable Carpet and Flooring is an experienced floor covering licensed contractor, who has worked exclusively in the flooring industry for over 25 years. Our services include the sales and installation of carpeting, hardwood flooring, laminate flooring, and vinyl flooring. We work with you every step of the way, giving you the great service that you deserve at every turn.
"Great , on time quick work price as quoted"
Donald G on March 2025
Elegant Floor Service has been offering leading, comprehensive wood floor services to residents in Maryland, Virginia, and DC since 1987! Our trusted, in-house contractors carry extensive experience and top-class training, ensuring we can meet all of your home or business flooring needs. From maintenance to total installation, you can count on Elegant Floor Service to provide. Offering many varieties of hardwood, flooring installation, refinishing, and restoration of stone floors.
"The process was easy. I am pleased with the finished product and the installation process."
Edward S on July 2024
Elegant Floor Service has been offering leading, comprehensive wood floor services to residents in Maryland, Virginia, and DC since 1987! Our trusted, in-house contractors carry extensive experience and top-class training, ensuring we can meet all of your home or business flooring needs. From maintenance to total installation, you can count on Elegant Floor Service to provide. Offering many varieties of hardwood, flooring installation, refinishing, and restoration of stone floors.
"The process was easy. I am pleased with the finished product and the installation process."
Edward S on July 2024
Thank you for finding Master All Floors here on Angi! Master All Floors is a family based company that offers high quality service that fits your budget. We specialize in installing, refinishing and repairing hardwood floors. We work with numerous employees with different abilities to offer you the best service possible. Please feel free to contact our office with any questions and we look forward to working with your lovely home!
"Great work, very reliable and responsive, thank you."
Samuel A on April 2025
Thank you for finding Master All Floors here on Angi! Master All Floors is a family based company that offers high quality service that fits your budget. We specialize in installing, refinishing and repairing hardwood floors. We work with numerous employees with different abilities to offer you the best service possible. Please feel free to contact our office with any questions and we look forward to working with your lovely home!
"Great work, very reliable and responsive, thank you."
Samuel A on April 2025
Ask about our Special Financing Offer! Competitive Carpet pricing starts at $0.59 per square foot including basic padding. District Floor Depot is a hard surface flooring retailer serving the Greater Washington Metropolitan Area with two convenient locations. Our services include hard surface flooring sales, installations, repair & refinishing. We offer top-quality flooring including everything from hardwood to bamboo and reclaimed to vinyl. We are committed to providing our customers with the best flooring options at the best prices, without compromising quality or customer service. Call us to schedule your free itemized consultation for your in-home flooring project. We would be happy to personally visit your home or business and bring any samples you might be interested in. Please visit us at a new location: 9409 Baltimore Ave. College Park, MD 20740!
"After searching for samples from several flooring manufacturers, including Cali Bamboo, Perm Shield, and others, we thought District Floor Depot had the best quality SPC vinyl at a competitive price point. Firstly, the customer service is amazing and very responsive. The company is also incredibly flexible, and its showrooms have great products. We loved how our floor project turned out and would use them again for future projects."
Alexander R on November 2024
Ask about our Special Financing Offer! Competitive Carpet pricing starts at $0.59 per square foot including basic padding. District Floor Depot is a hard surface flooring retailer serving the Greater Washington Metropolitan Area with two convenient locations. Our services include hard surface flooring sales, installations, repair & refinishing. We offer top-quality flooring including everything from hardwood to bamboo and reclaimed to vinyl. We are committed to providing our customers with the best flooring options at the best prices, without compromising quality or customer service. Call us to schedule your free itemized consultation for your in-home flooring project. We would be happy to personally visit your home or business and bring any samples you might be interested in. Please visit us at a new location: 9409 Baltimore Ave. College Park, MD 20740!
"After searching for samples from several flooring manufacturers, including Cali Bamboo, Perm Shield, and others, we thought District Floor Depot had the best quality SPC vinyl at a competitive price point. Firstly, the customer service is amazing and very responsive. The company is also incredibly flexible, and its showrooms have great products. We loved how our floor project turned out and would use them again for future projects."
Alexander R on November 2024
Insulation installs or upgrades FAQs
R-value measures how well insulation resists heat flow, which directly affects your home's energy efficiency. The higher the R-value, the better the insulation. By calculating the R-value needed for your specific climate and home design, you can choose the right insulation materials and thickness to keep your home comfortable and reduce heating and cooling costs.
You don't need to remove your old insulation before adding new insulation, as long as it's in good condition. Adding new insulation over existing materials can improve your home's energy efficiency. For example, you can install blown-in insulation around fiberglass batts or place rigid insulation over existing layers to enhance the overall R-value. However, if your current insulation is wet, moldy, or damaged, you should remove it to avoid health risks and maintain optimal performance.
Installing insulation typically takes five to twelve hours for batts or boards, and two to five hours for spray foam or blown-in insulation. The exact time depends on the type of material and your home's layout. If you need to remove old insulation, have a larger home, or hard-to-reach areas, the project may take longer.
The International Association of Certified Home Inspectors has said foam board insulation can last up to 100 years if properly installed. Some insulation materials can suffer from water damage or start to sag over many years, thus reducing their insulating ability. Foam boards shouldn't suffer from sagging but have the potential to get damaged. Any broken pieces of foam board can reduce its insulating effectiveness.
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