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TRUSTED BY TIMONIUM, MD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon86
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Timonium, MD

*The Angi rating for Insulation Service companies in Timonium, 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 Timonium, 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 March 20, 2026

Find Insulation pros in Timonium

Avatar for Koala Insulation of The Greater Baltimore Area
Koala Insulation of The Greater Baltimore Area
4.8(
13
)

Serving Timonium, 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
Recommended by83%of homeowners
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Avatar for JT Insulation, LLC
JT Insulation, LLC
5.0(
6
)

Serving Timonium, 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 Mister Insulation LLC
Mister Insulation LLC
5.0(
8
)

Serving Timonium, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"We called Mister Insulation and Jeff came out in a day or so. We explained that we purchased new windows and doors and had insulation blowen into the walls but the house was still not warm. He took pictures in the attic and used a thermal camera to show where we were losing heat also we had mold. He removed the mold and replaced the insulation . He and his crew were very professional. We would recommend them ."
Energy Evaluation
EnergyStar Seal
Building Code
NASA Tech!
Solar Venitilation

+1

Response time7 hrs
Response rate88%
8 neighbors recently requested a quote
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Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
21
)

Serving Timonium, 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
125 neighbors recently requested a quote
Recommended by80%of homeowners
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Avatar for Atlas Home Energy Solutions
Atlas Home Energy Solutions
4.7(
14
)

Serving Timonium, MD and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Atlas Home Energy Solution performed an energy audit for my home, followed by various insulation and weather-proofing tasks. Three other companies gave me estimates much higher for a work smaller in scope. Atlas estimate was lower for a more extensive work, and when combined with the rebate from BGE, turned out to be a highly reasonable deal. The employees were pleasant, courteous, and performed every task to perfection. I highly recommend them for any home energy issues"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

Response time3 days
14 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for ROI Construction LLC
ROI Construction LLC
4.3(
16
)

Serving Timonium, MD and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"The service was great! Dominic, the owner, was knowledgeable and the crew of guys who replaced the roof did a fantastic job. Highly recommend!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

41 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Smart Energy Pros
Smart Energy Pros
4.3(
19
)

Serving Timonium, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Brian was extremely excellent from start to finish! He thoroughly explained all rebates and incentives which made the project extremely affordable. My attic insulation project was seamless! Excellent communication, friendliness, and amazing job cleaning up. I highly, highly, HIGHLY recommend Smart Energy Pros!"
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation
Energy Audit-Insulation

+8

Response time8 hrs
Response rate94%
6 neighbors recently requested a quote
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Insulation questions, answered by experts

Yes, cold walls are a common indicator of poor or inadequate insulation, especially if the walls feel significantly colder than the air in the room. This suggests that heat from your furnace is escaping rather than being retained. The issue could be that the walls have no insulation, or that the existing insulation is old or has been damaged by water, moisture, or pests. Your best course of action is to hire a professional to investigate. An insulation contractor can determine if you need to add or replace insulation and can often perform the work without creating large holes in your drywall. If you suspect the problem might also be related to your heating system's performance, an HVAC technician can take a closer look.

Reflective and high R-value batt or roll insulation are often considered energy-efficient, offering significant thermal resistance benefits.

Yes, including recycled denim and cellulose from natural fibers.

Fiberglass is the best insulation for HVAC ducting because it's inexpensive, widely available, versatile, and long-lasting. Fiberglass also offers acoustic insulation in addition to thermal insulation, which can contribute to a more peaceful home environment. You can use other materials like mineral wool, but fiberglass is the industry standard.

It’s best not to install a radiant barrier directly under insulation because it requires an air gap on at least one side to work properly. Instead, you should install the radiant barrier over your existing insulation to create an air space to reflect the radiant heat.

The Timonium, MD homeowners’ guide to insulation services

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

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