Get matched with top insulation install or upgrade pros in your area
Enter your zip and get matched with up to 3 pros
Matching on HomeAdvisor
Insulation install or upgrade pros in Chantilly
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
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
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
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
AG Construction is a licensed small business dedicated to providing customers with the highest quality work, while keeping pricing very fair and affordable. With more than 10 years experience restoring, refinishing, and installing wood floors owner/operator Aaron Goodman personally oversees all projects. When you work with AG Construction you know you are getting the work of skilled professionals who are committed to giving customers the personal care and attention they deserve. We offer free estimates and promise an honest assessment of your project. We don't believe in taking on jobs for which we can not provide the best-possible service. AG Construction is committed to prompt and reliable scheduling.
"Excellent work!"
Jessica S on October 2024
AG Construction is a licensed small business dedicated to providing customers with the highest quality work, while keeping pricing very fair and affordable. With more than 10 years experience restoring, refinishing, and installing wood floors owner/operator Aaron Goodman personally oversees all projects. When you work with AG Construction you know you are getting the work of skilled professionals who are committed to giving customers the personal care and attention they deserve. We offer free estimates and promise an honest assessment of your project. We don't believe in taking on jobs for which we can not provide the best-possible service. AG Construction is committed to prompt and reliable scheduling.
"Excellent work!"
Jessica S on October 2024
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Fantastic! This is the second flooring project AMG Flooring has done for me. The first was a LVP flooring installation. This latest was hardwood installation in bedrooms and the primary staircase. The crew does high quality work, and I highly recommend."
Carolan M on April 2024
Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!
"Fantastic! This is the second flooring project AMG Flooring has done for me. The first was a LVP flooring installation. This latest was hardwood installation in bedrooms and the primary staircase. The crew does high quality work, and I highly recommend."
Carolan M on April 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
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
Virginia Top Floors is your local, trusted hardwood flooring company. Our team of flooring professionals offers hardwood floor installation, refinishing, and screening & recoating as well as staircase remodeling. We cherish your trust in us and return the favor, upholding the highest standards. With us, you can expect nothing less than quality craftsmanship and unmatched customer service. We’re proud of our work and it shows. Reference the glowing testimonials we’ve gathered. With 50+ years of experience, we’re confident we can achieve the same results for you. In fact, the top Northern Virginia realtors recommend us to their clients. Whether you’re moving in, renovating, or preparing for sale, our hardwood experts are there for you. Look no further than Virginia Top Floors for your hardwood flooring expertise. To learn more about how we can help, call us at (703) 537-9699 or visit virginiatopfloors.com.
"Another fantastic experience with Virginia Top Floors. Good price. Courteous and helpful install crew. Quality work. Highly recommend."
John L on March 2025
Virginia Top Floors is your local, trusted hardwood flooring company. Our team of flooring professionals offers hardwood floor installation, refinishing, and screening & recoating as well as staircase remodeling. We cherish your trust in us and return the favor, upholding the highest standards. With us, you can expect nothing less than quality craftsmanship and unmatched customer service. We’re proud of our work and it shows. Reference the glowing testimonials we’ve gathered. With 50+ years of experience, we’re confident we can achieve the same results for you. In fact, the top Northern Virginia realtors recommend us to their clients. Whether you’re moving in, renovating, or preparing for sale, our hardwood experts are there for you. Look no further than Virginia Top Floors for your hardwood flooring expertise. To learn more about how we can help, call us at (703) 537-9699 or visit virginiatopfloors.com.
"Another fantastic experience with Virginia Top Floors. Good price. Courteous and helpful install crew. Quality work. Highly recommend."
John L on March 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
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
At Renaissance Floor and Carpet, our team of specialists install high-quality flooring that will be a pleasure to behold for many, many years. We employ precision, care, and professional techniques in installing hardwood floors and new carpet, in refinishing hardwoods, and in repairing wood floors and carpeting. Our mission is always to achieve the precise look and end result you desire, Renaissance sculptor and painter Michelangelo created some of the most enduring works in Western art. We like to think we do something similar! . •Serving the greater Rockville area for over 16 years •No sub-contractors. Only in-house employees will work on your floors •We are licensed, bonded, & insured, and we proudly display our MHIC #91796 •Financing is available. Ask us for more info on financing your new floors At Renaissance Floor and Carpet, customer satisfaction and approval is our number one priority. We provide the finest flooring and carpet specialists, as well as the most courteous and professional customer service, you will find anywhere. With over 16 years experience in the flooring business, we and our in-house team of flooring professionals—trained by us in our methods and techniques—are well-qualified and dedicated to serving you. We use only the highest quality materials, and we pride ourselves on our service to the community. We are accredited by the Better Business Bureau, and we have an A+ rating on Angie’s List and Checkbook magazine.
"We were lucky enough to work with Renaissance Flooring on our project. We needed LVP on our main floor and carpeting in the rest of our house and as overwhelming as it was, Latif made it easy. He was so helpful and taught us a lot! We will always recommend him!"
Jeanne L on October 2024
At Renaissance Floor and Carpet, our team of specialists install high-quality flooring that will be a pleasure to behold for many, many years. We employ precision, care, and professional techniques in installing hardwood floors and new carpet, in refinishing hardwoods, and in repairing wood floors and carpeting. Our mission is always to achieve the precise look and end result you desire, Renaissance sculptor and painter Michelangelo created some of the most enduring works in Western art. We like to think we do something similar! . •Serving the greater Rockville area for over 16 years •No sub-contractors. Only in-house employees will work on your floors •We are licensed, bonded, & insured, and we proudly display our MHIC #91796 •Financing is available. Ask us for more info on financing your new floors At Renaissance Floor and Carpet, customer satisfaction and approval is our number one priority. We provide the finest flooring and carpet specialists, as well as the most courteous and professional customer service, you will find anywhere. With over 16 years experience in the flooring business, we and our in-house team of flooring professionals—trained by us in our methods and techniques—are well-qualified and dedicated to serving you. We use only the highest quality materials, and we pride ourselves on our service to the community. We are accredited by the Better Business Bureau, and we have an A+ rating on Angie’s List and Checkbook magazine.
"We were lucky enough to work with Renaissance Flooring on our project. We needed LVP on our main floor and carpeting in the rest of our house and as overwhelming as it was, Latif made it easy. He was so helpful and taught us a lot! We will always recommend him!"
Jeanne L on October 2024
Insulation installs or upgrades FAQs
Yes, insulating an unfinished basement delivers meaningful benefits even if you don't plan to finish the space. Proper insulation reduces heat transfer through basement walls, which can account for up to 30% of a home's total energy loss.
This improvement enhances comfort throughout your home while potentially reducing energy costs. Insulation also helps manage moisture levels, protecting your home's structure and improving indoor air quality.
Rigid foam board and spray foam insulation provide superior moisture resistance for basement applications. These materials create effective vapor barriers while delivering high R-values per inch of thickness. Rigid foam boards resist water absorption and can withstand occasional dampness, while spray foam creates an airtight seal that blocks humidity infiltration.
For basements in humid climates or with moisture concerns, these options outperform fiberglass or wool alternatives.
Insulating basement walls provides the greatest benefit by reducing heat transfer through your foundation. This approach helps maintain consistent temperatures throughout your home and keeps floors above the basement warmer during cold weather.
Ceiling insulation might be appropriate if you specifically want to isolate the basement from living spaces above. In most cases, addressing the rim joists and exterior walls delivers the best performance for energy efficiency and moisture management.
Many building codes require vapor barriers when insulating below-grade spaces like basements. These barriers help control moisture migration through foundation walls and floors. Certain insulation types, including rigid foam and spray foam, provide inherent vapor barrier properties. When using fiberglass or wool insulation, a separate vapor barrier becomes necessary. Always check local building codes for specific requirements in your area.
Signs that basement insulation needs replacement include persistent cold spots, unexplained increases in energy bills, visible moisture damage, musty odors, or mold growth. Physical deterioration, such as compression, sagging, or discoloration, also indicates potential problems.
In older homes with outdated insulation materials, upgrading to modern options with higher R-values can significantly improve performance. When in doubt, professional inspection can help determine whether repair or replacement represents the best approach.
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
