Get matched with top insulation pros in Timonium, MD

Timonium homeowners rate insulation pros in our network

4.6

(86 reviews)

Top-rated insulation pros.

Need a pro for your insulation service project in Timonium, MD?

Select your specific project to find the pro for you.

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
Request Quote
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
Request Quote
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
Request Quote
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
Request Quote
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
Request Quote
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
Request Quote
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
Request Quote
...
Showing 1-10 of 69
Insulation questions, answered by experts

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

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.

Insulating under a concrete slab foundation is a great way to improve the energy efficiency of your home, but it isn't necessary for outdoor projects like driveways, patios, sidewalks, and walkways. If you’re pouring in cold weather, insulating under the slab can help prevent heat loss from the concrete, aiding in proper curing. Along with accelerants, this can be a good way to ensure strong concrete despite pouring in the cold.

Yes, proper insulation in your attic or ceiling can help prevent ice dams. When attic spaces are too warm, they cause the snow on the roof over those areas to melt more quickly than the rest of the roof and then travel downward to a colder section of the roof where they refreeze. If less heat is allowed to escape from underneath the roof, snow will melt at a more consistent rate, making ice dams less likely.

Reduces energy costs, improves comfort, and prevents ice dams in winter.

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.

See all articles