Get matched with top insulation pros in Annandale, VA

Discount Energy Services

4.36(

Customers say: Terrific value

87 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.

"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

"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

Prudent Homes

Prudent Homes

Customers say: Quality work

Recommended by 95% of Angi customers

141 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

"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

Comfenergy, LLC

4.69(

Comfenergy, LLC

4.69(

Customers say: Super punctual

Recommended by 91% of Angi customers

58 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

"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

DMV Insulation

DMV Insulation

Customers say: Quick response

Recommended by 100% of Angi customers

44 local quotes requested

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.

"The job turned out excellent. The Lead came and explained the job and how the job would be done. He explained how I would have a more energy efficient home based on the materiel being used. The techs that came to do the job was very respectful of my home. I am well pleased with the job that they did, and I would highly recommend the company to others."

Ronnie F on September 2025

"The job turned out excellent. The Lead came and explained the job and how the job would be done. He explained how I would have a more energy efficient home based on the materiel being used. The techs that came to do the job was very respectful of my home. I am well pleased with the job that they did, and I would highly recommend the company to others."

Ronnie F on September 2025

JTS Remodeling

JTS Remodeling

Some of the specialties that we offer would be Roofing, Siding , Gutter cleaning and we offer other services as well. While other competitors offer these services as well , we make the customer feel comfortable with us. We have been in business for about 7 years. If you have any questions please feel free to ask.

Worgens Painting LLC

4.92(

Worgens Painting LLC

4.92(

Customers say: Quick response

Recommended by 100% of Angi customers

We are a family residential painting business with 5 years of trusted experience. We focus on residential work with free estimates on any of the following: *Interior Painting *Exterior Painting *Cabinets Painting *Deck Painting *Fence Painting *Roof Painting *Banisters Painting *Stairs Painting *Flooring Painting *Staining *Varnish *Drywall Repair *Power Washing Service and more.

"Despite much back and forth with my HOA over the span of two months, Worgens Painting remaining patient, flexible, and responsive with providing updated quotes. I’ll add that I had four other companies quote labor/materials for staining the deck and fence, along with replacing warped or damaged boards. Worgens quote was fair and reasonable in comparison to the other estimates I received. Worgens painters did an excellent job with the repairs, even patching up areas that were not discussed during the labor estimation process. Additionally, the painters had great attention to detail, applying two layers of high quality stain to the deck and fence. I’m very impressed with the results, and have received compliments from my neighbors as well. I only have one minor complaint that prevents a five star rating. The quote promises that anything removed from the deck will be put back in its original place. This did not happen, and several debris such as residual wood, screws, and old hardware were left scattered throughout the yard. A little more effort to clean up the area upon conclusion of the project would have been appreciated. Again, very minor complaint that does not diminish the quality of their craftsmanship. Overall, I highly recommend Wogens and would hire them again without hesitation."

Hunter R on July 2024

"Despite much back and forth with my HOA over the span of two months, Worgens Painting remaining patient, flexible, and responsive with providing updated quotes. I’ll add that I had four other companies quote labor/materials for staining the deck and fence, along with replacing warped or damaged boards. Worgens quote was fair and reasonable in comparison to the other estimates I received. Worgens painters did an excellent job with the repairs, even patching up areas that were not discussed during the labor estimation process. Additionally, the painters had great attention to detail, applying two layers of high quality stain to the deck and fence. I’m very impressed with the results, and have received compliments from my neighbors as well. I only have one minor complaint that prevents a five star rating. The quote promises that anything removed from the deck will be put back in its original place. This did not happen, and several debris such as residual wood, screws, and old hardware were left scattered throughout the yard. A little more effort to clean up the area upon conclusion of the project would have been appreciated. Again, very minor complaint that does not diminish the quality of their craftsmanship. Overall, I highly recommend Wogens and would hire them again without hesitation."

Hunter R on July 2024

Green Environmental Solutions

Green Environmental Solutions

Customers say: Quick response

Recommended by 100% of Angi customers

We specialize in insulation services, animal removal services (squirrels, bats, rats, raccoons, opossums, snakes, etc), mold services, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Work done on timely basis; company personnel knowledgeable, efficient, courteous, good communicators about process and progress"

Jim P on March 2024

"Work done on timely basis; company personnel knowledgeable, efficient, courteous, good communicators about process and progress"

Jim P on March 2024

TopTier Solar Solutions

TopTier Solar Solutions

Specialized NO PRESSURE Solar Consultations. In-Home or Virtual. Stop renting and OWN YOUR POWER! We do everything In-House from consultation to installation, to repairs. NO THIRD PARTIES Federal and State Incentives for being an early adapter can greatly reduce the cost of your system. TopTier Solar Solutions is an owner-operated company based in Charlotte, NC. Before venturing into Solar Sales, we specialized in roofing, insulation, and tree removal. We have been installing solar for 4 years and have become the fastest-growing vertically-integrated solar company in the nation. Recently, we were honored to receive the Gold Stevie Award in the Entrepreneur category at The 21st Annual American Business Awards in 2023.

Founders Insulation

Founders Insulation

3 years of experience

Licensed, Insured, and bonded contractor in VA, MD, and DC. VA License#: 2705186804 MD License#: 153831 DC License#: 410523000415 As a locally-owned insulation business, we're committed to providing the best customer satisfaction for our customers and neighbors. We provide free home energy audits to Northern Virginia, DC, and Maryland. We specialize in the Residential and Commercial installation of Spray Foam, Blown-in, and Batt Insulation. Whether you need to remove and replace old insulation with new energy efficient insulation, or you have a new construction project, we do it! We have developed a reputation for providing high quality insulation services at the most affordable prices. Our well trained technicians ensure that the process is quick, effective, and that all of your needs are taken care of along the way.

"The project went very smoothly overall, and the insulation looks great. Jeff did a fantastic job explaining to me the whole process and getting me an estimate, without making me feel pressured to buy. The install team kept me informed the entire time, cleaned up after themselves, and left my house as clean as it was when they first came in. And to top it off, the foam looks great, and is performing just how they said it would."

Brian H on May 2023

"The project went very smoothly overall, and the insulation looks great. Jeff did a fantastic job explaining to me the whole process and getting me an estimate, without making me feel pressured to buy. The install team kept me informed the entire time, cleaned up after themselves, and left my house as clean as it was when they first came in. And to top it off, the foam looks great, and is performing just how they said it would."

Brian H on May 2023

iFoam of Arlington

iFoam of Arlington