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  • Verified reviews icon31
    Verified insulation services reviews

Find Insulation pros in Castleton

Avatar for Comfenergy, LLC

Comfenergy, LLC

4.69(
48
)
Approved Pro

Comfenergy, LLC

4.69(
48
)
Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
61 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


JTS Remodeling

No reviews yet

JTS Remodeling

No reviews yet

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.

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.


TopTier Solar Solutions

No reviews yet

TopTier Solar Solutions

No reviews yet

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.

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.


Avatar for Efficient Energy Solutions

Efficient Energy Solutions

5.00(
4
)

Efficient Energy Solutions

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

We are a family owned and operated business providing insulation services in the Virginia area. Jonatan and Christina Uribe, the company's founders, take pride and believe in having a hands-on approach to the business' success which they believe rests squarely upon client satisfaction and living up to the company's name and motto.

"Thank you! You guys did a great job! Very professional crew & the product is amazing. We are so cozy now."

Traci C on March 2022

We are a family owned and operated business providing insulation services in the Virginia area. Jonatan and Christina Uribe, the company's founders, take pride and believe in having a hands-on approach to the business' success which they believe rests squarely upon client satisfaction and living up to the company's name and motto.

"Thank you! You guys did a great job! Very professional crew & the product is amazing. We are so cozy now."

Traci C on March 2022


Marsh Installations

No reviews yet

Marsh Installations

No reviews yet

Specializing in fiberglass and radiant barrier insulation, our family has been working at our trade for 25 years and come with an exclusive money back guarantee you won't find anywhere else in the industry. If our work doesn't decrease your energy costs, call us for a full refund!

Specializing in fiberglass and radiant barrier insulation, our family has been working at our trade for 25 years and come with an exclusive money back guarantee you won't find anywhere else in the industry. If our work doesn't decrease your energy costs, call us for a full refund!


Thomas Insulation

No reviews yet

Thomas Insulation

No reviews yet
6 years of experience

As a family business started in 2004 as Dale Thomas Insulation we are happy to announce our sister company, Jacob Thomas Insulation! As the owner and founder's son Jacob has all the experience and knowledge you will need to have your insulation project a smooth success in the path to achieving better energy savings in your home! We provide fiberglass, cellulose and foam applications in a wide range of applications and services. Contact us today to have Jacob Thomas Insulation quite your next Insulation project.

As a family business started in 2004 as Dale Thomas Insulation we are happy to announce our sister company, Jacob Thomas Insulation! As the owner and founder's son Jacob has all the experience and knowledge you will need to have your insulation project a smooth success in the path to achieving better energy savings in your home! We provide fiberglass, cellulose and foam applications in a wide range of applications and services. Contact us today to have Jacob Thomas Insulation quite your next Insulation project.


Avatar for JES Foundation Repair

JES Foundation Repair

4.50(
275
)

JES Foundation Repair

4.50(
275
)
Customers say: Super punctual
32 years of experience

Established in 1993, JES stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Virginia and Maryland, we bring our local expertise closer to you. JES proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025

Established in 1993, JES stands as a trusted subsidiary of Groundworks, a distinguished family of companies renowned for delivering unparalleled solutions. From foundation repair, structural reinforcement, crawl space encapsulation, basement waterproofing, and concrete lifting, we provide comprehensive services tailored to meet your needs. With our coverage spanning across the state of Virginia and Maryland, we bring our local expertise closer to you. JES proudly holds accreditation from the Better Business Bureau, a testament to our unwavering commitment to excellence. Drawing from decades of collective experience, extensive industry knowledge, and ongoing specialized training, our dedicated team is poised to safeguard your residential property against water damage, concrete sinking, and foundation instability. At JES, we are not just builders; we are guardians of your peace of mind. Contact us today for a FREE estimate! 410516000653 (DC) | 50637 (MD) | WV027473 (WV)

"JES was very professional and easy to work with from the beginning to the end of our basement project. Eric was very knowledgeable, and exceedingly helpful in answering our questions and making us feel comfortable with the choices we made. The crew that did the work were quick, clean, and extremely efficient. We were very happy with everything they did!"

Andrea M on October 2025


Avatar for Bedrock Construction LLC

Bedrock Construction LLC

No reviews yet

Bedrock Construction LLC

No reviews yet
13 years of experience

Bedrock Construction LLC is a Virginia class 'A' Builder with over 20 years of experience. We offer quality work at a fair price. We are licensed and insured in Virginia. We are a memeber of eVA, certified SWAM, and our project manager carries the PMP® credential. We promise to respect you, your property and your time. We only use master tradesmen and skilled employees. We do not use day laborers. We offer service call work at $120 for the first hour and $80 per hour afterwords as well as quotes/contracts for projects/builds. We accept cash/check/credit cards. For larger projects, we typically accept start-up funding with draws as work is completed. It dose depend on what we are doing.

Bedrock Construction LLC is a Virginia class 'A' Builder with over 20 years of experience. We offer quality work at a fair price. We are licensed and insured in Virginia. We are a memeber of eVA, certified SWAM, and our project manager carries the PMP® credential. We promise to respect you, your property and your time. We only use master tradesmen and skilled employees. We do not use day laborers. We offer service call work at $120 for the first hour and $80 per hour afterwords as well as quotes/contracts for projects/builds. We accept cash/check/credit cards. For larger projects, we typically accept start-up funding with draws as work is completed. It dose depend on what we are doing.


L&J Insulation LLC

No reviews yet

L&J Insulation LLC

No reviews yet
11 years of experience

We are an LLC insured subcontracting company for insulation (general contractors) For lawn care service, please feel free to contact us directly, we provide a competitive pricing along with quality work. Served 25 years in USMC

We are an LLC insured subcontracting company for insulation (general contractors) For lawn care service, please feel free to contact us directly, we provide a competitive pricing along with quality work. Served 25 years in USMC


Reliable Contracting LLC

No reviews yet

Reliable Contracting LLC

No reviews yet
13 years of experience

Our Team of Highly skilled Craftsman specialize in carrying out various odd jobs. Providing technical and mechanical mindset, manual dexterity, self-reliance, and good communication skills. So many projects so little time. Call today for your free estimate. 10% Discount applies for all estimates scheduled within 10 days of estimate.

Our Team of Highly skilled Craftsman specialize in carrying out various odd jobs. Providing technical and mechanical mindset, manual dexterity, self-reliance, and good communication skills. So many projects so little time. Call today for your free estimate. 10% Discount applies for all estimates scheduled within 10 days of estimate.

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Insulation questions, answered by experts

There are two reasons why cellulose insulation repels rodents (and insects). First, the insulation has been treated with boric acid, which is a natural pest-repellent. In addition, the loose-fill style of cellulose creates less-than-ideal conditions for mice and other rodents to nest and burrow, helping to keep them at bay.

Interior walls don't require insulation. However, there are a couple of reasons you may consider adding it in some situations. Insulation in interior walls is excellent for sound-dampening between rooms and can help maintain a regulated temperature in insulated rooms by lowering the heat transfer between adjacent areas of the home.

Fiberglass is considered a favorite garage insulation choice due to its combination of affordability, ease of installation, and overall effectiveness. Fiberglass provides good thermal resistance, helping regulate garage temperatures and minimize heat transfer. Additionally, fiberglass is moisture-resistant, reducing the risk of mold or mildew formation.

You don’t need to remove old insulation before adding new insulation. As long as the old insulation is still in good shape—not wet, physically damaged, or moldy—then you can stack new insulation on top of old insulation to get a compounding effect. You can also mix different types of insulation, like adding blown-in insulation around existing fiberglass batt insulation or installing rigid insulation boards over rafters in your attic that already have batt insulation installed. If your existing insulation is very old or damaged, though, you’ll likely see more benefit from removing it and replacing it instead.

Water freezes at 32 degrees Fahrenheit, but the actual temperature that can cause frozen pipes can vary. Generally, it takes 12 hours for pipes to freeze at 32 degrees Fahrenheit.

Uninsulated pipes can freeze if it’s 20 degrees Fahrenheit or colder for over three hours. If your pipes are insulated, it can take six hours or longer for pipes to freeze. Note that some pipe types freeze more often than PEX pipes. Copper pipes freeze more often because the copper conducts energy and loses heat quickly.

The Castleton, VA homeowners’ guide to insulation services

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