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TRUSTED BY GLYNDON, MD HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon99
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Glyndon, MD

*The Angi rating for Insulation Service companies in Glyndon, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

*The HomeAdvisor rating for Insulation Service companies in Glyndon, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.

Last update on February 06, 2026

Find Insulation pros in Glyndon

Avatar for Koala Insulation of The Greater Baltimore Area
Koala Insulation of The Greater Baltimore Area
4.8(
13
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Glyndon, MD and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"We had insulation installed a week earlier by Koala. During the insulation, Jasper (insulator) suggested another area that we might consider installing blown-in insulation. We agreed and the second job was performed on Friday, the 24th. Jasper and Richard were on time, the insulation project was well done and they left the area very clean. Would use them again."
Insulation Projects
Spray Foam Insulation
Insulation Projects
Blow-in Rig
Truck

+9

Response time8 hrs
1 neighbors recently requested a quote
Recommended by83%of homeowners
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Avatar for JT Insulation, LLC
JT Insulation, LLC
5.0(
6
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or Upgrade

Serving Glyndon, MD and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"Very prompt. Gave us a great price and did a wonderful job installing insulation in a tight area. Would definitely hire him again."
Response time1 day
1 neighbors recently requested a quote
Recommended by16%of homeowners
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Avatar for Founders Insulation
Founders Insulation
4.9(
18
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Glyndon, MD and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Founders Insulation did a very good job on installing insulation in ceilings! They were careful, courteous and cleaned up."
Exterior Walls
Exterior Walls
Roof line
Exterior Walls
Exterior Walls

+11

Response time12 hrs
257 neighbors recently requested a quote
Recommended by70%of homeowners
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Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)
Spray Foam Insulation - InstallInjection Insulation - Install

Serving Glyndon, MD and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"We are extremely satisfied with the whole process of our house being insulated. First we had the walls done, and then a couple weeks later we had our attic insulated. The crew were so nice, friendly, and knowledgeable. We are very satisfied with everything. Thank you, everyone."
RetroFoam Wall Insulation
Installing RetroFoam
RetroFoam with Siding
RetroFoam with Brick
Response time1 day
Response rate100%
122 neighbors recently requested a quote
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Avatar for Atlas Home Energy Solutions
Atlas Home Energy Solutions
4.1(
34
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeSpray Foam Insulation - Install

Serving Glyndon, MD and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Our first interaction with Atlas was with Shannon. As knowledgeable and personable as one could hope for. She clearly explained cost effective measures to better insulate our house. We opted for sealing and insulating our attic and weather stripping a number of doors. We were very pleased with the workmanship and the energy savings they produced. They also helped us get a PEPCO credit which reduced the overall cost of the job. A winner!"
Visual Inspection of all Areas of your Home
Attic Insulation and Air Sealing
Infrared Camera Inspection
Attic Spray Foam
Blower Door Whole House Air Leakage Test

+11

Response time1 day
Recommended by87%of homeowners
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Avatar for Elite Thermal East
Elite Thermal East
4.3(
105
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Glyndon, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"They replaced our insulation while we were redoing the roof."
Cellulose Blown Insulation - Rem/Repl Before/After
Cellulose Blown Insulation - Before/After
Cellulose Blown Insulation - Before/After
Fiberglass Batt - Before/After
Fiberglass Batt - Remove & Replace - Before/Af

+5

Response time1 day
Response rate95%
76 neighbors recently requested a quote
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Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
438
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or Upgrade

Serving Glyndon, MD and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Window & roof insulation quick, easy, & affordable!"
Roofing
Roofing
Roofing
Roofing
Roofing

+77

Recommended by86%of homeowners
Request Quote
Avatar for ROI Construction LLC
ROI Construction LLC
4.1(
18
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

Serving Glyndon, MD and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"We had a great experience with ROI Construction sales representative David Burke. David was very knowledgeable about ROI's porducts and services. We look forward to getting our attic insulation project completed and will provide a more thorough review at that time. Thanks, Tim"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

52 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Smart Energy Pros
Smart Energy Pros
4.3(
19
)
Blown-In Insulation - Install or Upgrade

Serving Glyndon, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Brian came out to perform an energy audit on my home. He arrived on time, was respectful of my home and showed me where my insulation was missing with his infrared camera! His report came two days later as promised with a reasonable quote."
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation

+8

Response time8 hrs
Response rate96%
3 neighbors recently requested a quote
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Insulation questions, answered by experts

Insulating windows without plastic is usually the better method. Outside of simply replacing your windows, you could buy cellular shades, which trap air between the window and the home, add a window film that blocks UV rays and traps heat, or cover your windows with a low-emissivity coating called “low-E.”

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

Using plastic shrink film over the window will cut down on drafts, which makes the air inside your home feel warmer. Plastic shrink film doesn’t quite have the insulative properties of a new window or of adding insulation inside the window jamb, but it will help. Plus, it’s a cost-effective solution to keeping your home warmer.

The life span of insulation is between 20 and 100 years. At that time, existing insulation can fall victim to gravity, resulting in compression, which reduces its insulating protection or R-value. If you can't simply add more insulation over the existing material, removing the old to increase the effectiveness of the new can reduce your energy bills and make the project worth the time and money investment.

How to dispose of insulation depends on a few factors, including the condition of the material. While you can simply bag up and throw away many kinds of insulation, some municipalities offer recycling, so it's worth checking with yours. If there are contaminants such as asbestos in your insulation, abatement and specialized disposal are often necessary.

The Glyndon, MD homeowners’ guide to insulation services

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