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Find Batt, rolled or reflective insulation install or upgrade pros in Dundalk

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

Serving Dundalk, MD and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"I hired Koala Insulation of Greater Baltimore for attic insulation and fan installation. Initially, things went well. Jeffrey L. did a great job explaining insulation options and ventilation, and I chose the company for their fair pricing and strong reviews. Unfortunately, the project didn?t go as planned. A job quoted as one day stretched into four visits due to planning issues and the crew lacking a tall enough ladder. I also ended up with paint damage on my staircase from their hose, which required touch-up work. Jasper mentioned possible compensation for the delays, but I never received follow-up from him or the owner. The crews were polite and did good work overall, but the poor communication, unexpected delays, and lack of accountability were disappointing. I?m leaving 3 stars based on my experience."
Insulation Projects
Spray Foam Insulation
Insulation Projects
Blow-in Rig
Truck

+9

Response time8 hrs
Recommended by83%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.9(
1,106
)

Serving Dundalk, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"Home Genius came by and installed my insulation into my attic and I couldn’t be more thrilled and happy with the results! I noticed an initial change with the first temperature drop of the winter! And I wasn’t cold one bit! Angel And Michael were both professional and knowledgeable and were available for any questions or concerns that I had! Thank you to Home Genius for my new roof and my new insulated attic! I would love to recommend them to all family and friends!"
WINDOWS
WINDOWS
WINDOWS
WINDOWS
SIDING

+73

Response time4 hrs
Response rate93%
3388 neighbors recently requested a quote
Pilot Home Services
4.2(
146
)

Serving Dundalk, MD and surrounding areas

In business since 2011

Free estimates

Warranties offered

"It was a little more expensive than the two other bids I got, but I trusted the owner who, unlike the others, really listened to my concerns and preferences. Christian, the installer did a fast and efficient job above and beyond expectations. He was charming, hardworking, and fixed or repaired damaged or disconnected AC ductwork he discovered in pereparation for installing the insulation. He arrived on time, finished the job faster than I expected and did an immaculate job of cleaning up after the work."
Before
After
Before
Before
After

+5

Response time12 hrs
10 neighbors recently requested a quote
Recommended by85%of homeowners
American Home Contractors Inc
4.7(
2,134
)

Serving Dundalk, MD and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"Thank you James Im, Antonio and crew for an amazing experience and a job well done! It is rare these days to find a home improvement company that you can trust from beginning to end. AHC staff and representatives ensured that every detail from estimates, to coordinating delivery of materials and quality control of installation was performed to the highest standards and exactly on time. James and Antonio/crew were attentive to our every question and concern, and in the end made the experience with AHC a memorable one worthy of the highest level recommendation. Bottom line: If you choose any other roof replacement contractor - you will be making a mistake!"
Tesla Solar Roof - Elkridge, MD
Tesla Solar Roof - Fulton, MD
Tesla Solar Roof - Ellicott City, MD
Tesla Solar Roof - Washington, DC
GAF Decotech – Westminster, MD

+509

Recommended by95%of homeowners
Cameron Home Insulation
4.6(
40
)

Serving Dundalk, MD and surrounding areas

In business since 1907

Free estimates

Credit card accepted

"Debbie, the AC&R salesperson, was very knowledgeable and confident. They were the 2nd quote I got for work and came in even lower than I expected (which gave me pause as a low bid is a red flag). But true to her word, they did the work professionally (mostly...see below) and promptly. While I had another company do the energy audit for the Pepco rebate, AC&R took over the work, did the blown fiberglass one day and the spray foam the next.



For the blown fiberglass in the attics above our additions, they added spray foam (from a can) around any gaps per the contract and foam board baffles at the soffits. The installer noted that all our soffits were blocked and the batting insulation was too wide for the rafter channels, so he leveled it out as best he could to ensure an even coating of blown insulation. At the end, he sealed up the gaps between the attic and our to-be-finished upstairs (cape cod style, so all one room).



For the spray foam insulation, the team came in the next day, and I had to be out of the house due to fumes. I did come back around noon as they expected to be done well before then. They didn't know I came in and I went to the back of the house to watch TV on my work break. The one annoyance was during their cleanup, one of the installers came down into our kitchen and then saw me. He said he was looking for a vacuum cleaner to clean the stairs. I told him don't worry about the carpet as it was getting pulled up, but this was the one piece of unprofessionalism I noted above. Contractors should NEVER use the homeowner's property; they should bring their own tools, including vacuums!



While the spray foam can get very messy, they kept the splatter mostly contained to inside the crawlspace, not the finished flooring. However, I was surprised that they didn't tape off the outlet covers or light switched. since the particles are so small, we're going to have to replace the switches/receptacles at our cost. Also, there was a storm door screen that wasn't covered and now needs cleaned. Basically, I think they should have taken more care in covering the very few items we left upstairs and the outlets/switches.



They didn't spray around the window frames (large gaps where window weights used to be) because the open cell foam would expand too much. If I wasn't there, I think they would have just left, but it was clear in our contract discussions they needed to insulate those spaces too. They used a few cans of "Good Stuff" equivalent, but didn't fill in the gaps entirely. It did the job well enough, but it's a ding against them as I expected more preparation.



Lastly, I thought that AC&R would walk me through all the scheduling and final "test out" (for the Pepco rebate), but I had to contact them and schedule with someone different each time. They were always prompt, but I expect the experts to know to do this for/with me rather than expect me to know the process. I go through it once in a lifetime while they do it weekly.



While the end of the review sounds more negative than positive, I would definitely recommend AC&R out to others as they're priced right, they have been in business for over a century, and like any contractor, you just need to follow up to be sure everything is done to your satisfaction.
"
Recommended by100%of homeowners
Avatar for Insulation Geniuses
Insulation Geniuses
4.6(
9
)

Serving Dundalk, MD and surrounding areas

In business since 2016

Free estimates

Emergency services offered

Same quality and company, NEW NAME!!!! Yep we've upgraded our branding to better reflect out company goals. As always, quality products are essential for success, but without certified and trained technicians installing everything to the exact specifications for greatest success, your home wouldn't get the best results. That's why we do things right - every time. Our excellent products come with extended/lifetime warranties INCLUDED - there will never be an upcharge for a warranty. The adage "you get what you pay for" is 100% true for Insulation Geniuses. We'd rather explain the investment up front rather than trying to explain quality for the next 20 years...

Another Happy Homeowner!
Aeroshield NASA Grade Insulation
Energy Star Attic Seal Process
Gable Attic Fan - SOLAR POWERED!  Runs for FREE and 25 Year Warranty!
AeroShield Installed over Blown-In gives you the right protection forever with it's LIFETIME Warranty!

+37

Recommended by88%of homeowners
Avatar for Pilot Home Services
Pilot Home Services
4.6(
171
)

Serving Dundalk, MD and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"I have an old house and new addition that was not insulated properly and a sun room that needed insulation. Dan was extremely knowledgeable on what needed to be done and his team did outstanding and professional work I highly recommend them! I wish I would have hired him first!"
R Value
Recommended by92%of homeowners
Avatar for Mark Group
Mark Group
4.4(
467
)

Serving Dundalk, MD and surrounding areas

In business since 1974

Free estimates

Credit card accepted

"

The furnace crew took  2 full days and the insulation crew took 3 full days.

These are 2 emails I sent to the company:

1/.  Just wanted to convey to you that my wife and I were deeply impressed by the 2 crews that were assigned to our upgrades. The furnace crew; Brian, Todd, and Tony had the additional task of disassembling a old heater into pieces small enough to get it out through an interior stairwell. They did an excellent job and left the job site spotless. The insulation crew; Todd, Doug, and Jeremy were presented with many challenges in attempting to meet the contract specifications and always came up with innovative ideas to overcome 19th century construction techniques. These craftsmen also did an excellent job and left the job site spotless. My wife commented that they always seemed to be working and never took a break. It was a pleasure having them all work on our house.

2/.  In the last two days I had 4 inspectors for the permits come out and we passed all the final inspections.  The Fire, Plumbing, and Electrical Inspectors for the furnace all were impressed with the installation. They particularly liked the manner in which Brian hung and braced the intake and exhaust pipes. They all said the install was neat, clean, tight, well laid out.  The Building Inspector was impressed with neat and tidy job done by the Todd and the insulation crew.  Please thank them for an excellent job.







"
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+14

Recommended by83%of homeowners
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FAQs for batt, rolled or reflective insulation install or upgrade projects in Dundalk, MD

Batt insulation excels in vertical installations because it remains firmly in place and delivers consistent thermal performance. Blown-in insulation performs exceptionally in spaces such as attics, efficiently filling gaps in irregular areas. 

Employing both insulation types according to their strengths enhances your home’s overall energy efficiency and comfort by providing a tailored solution for every space.

Start by measuring the square footage of the space, then match that area with the insulation thickness you need to hit your target R-value. Add a buffer for waste and odd-shaped spots so every cavity is covered. 

Once you have a rough count, run it past a local insulation pro—their on-site advice will fine-tune the numbers and help you avoid costly miscalculations.

Old insulation that is dry, intact, and mold-free does not require removal before adding new insulation; stacking new insulation over it maintains effective thermal performance and boosts energy efficiency. 

If the insulation is damp, moldy, or deteriorated, removal is necessary to eliminate health risks and ensure maximum effectiveness of the new layer. A professional insulation contractor will assess your situation and recommend the most effective solution.

Installing insulation in an average-sized home using batts or boards requires five to 12 hours. Using spray foam or blown-in insulation requires two to five hours. These timeframes are determined by the area’s size, accessibility, and whether old insulation must be removed. 

Complex projects and hard-to-reach spaces demand extra time. Hiring an experienced insulation professional ensures that the installation is completed efficiently and correctly.

Insulation is measured by R-value, which defines how effectively it resists heat flow. A higher R-value provides superior thermal resistance, ensuring your home remains warm in winter and cool in summer. 

Choosing the correct R-value is essential for maximizing energy efficiency and comfort, and it directly impacts long-term utility savings. Professional guidance determines the optimal R-value for your specific climate.

The Dundalk, MD homeowners’ guide to batt, rolled or reflective insulation installs or upgrades

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