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Find Insulation pros in Lothian

Avatar for JT Insulation, LLC
JT Insulation, LLC
5.0(
6
)

Serving Lothian, 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
Avatar for RetroFoam of Philadelphia
RetroFoam of Philadelphia
5.0(
22
)

Serving Lothian, 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 by75%of homeowners
Avatar for Complete Home Solutions, LLC
Complete Home Solutions, LLC
3.9(
84
)

Serving Lothian, MD and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"The company did an assessment that we did not need as much insulation as we thought. The gave us a better approach which was cheaper and more efficient."
 Stone Front of Addition
 Kitchen
 .
 After
Screened Porch and Deck

+93

Response time1 day
10 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Comfort Kings
Comfort Kings
5.0(
10
)

Serving Lothian, MD and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"He is very professional. Helped me out with the foam insulation, great job across the board and I'm very happy with his service."
After
Before
Response time1 day
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Elite Thermal East
Elite Thermal East
4.3(
105
)

Serving Lothian, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Brian and his team is good in his work. He communicate well. Mark is well experienced person working in the team. I would recommend Mark for home insulation work."
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 rate94%
81 neighbors recently requested a quote
Avatar for ROI Construction LLC
ROI Construction LLC
4.3(
16
)

Serving Lothian, MD and surrounding areas

Approved

In business since 1974

Free estimates

Warranties offered

"This was the second time we hired ROI Construction LLC to work on our home and they did an excellent job both times. Originally our roof was replaced and ROI did a fantastic job, going above and beyond in making sure every detail was perfect. Recently we had the roof and skylights of an addition replaced. In both instances ROI charged less than the competitors and the workmanship was high grade. I highly recommend this company."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

37 neighbors recently requested a quote
Recommended by100%of homeowners
Advanced Green Home Solutions
New to Angi

Serving Lothian, MD and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Advanced Green Home Solutions is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Advanced Green Home Solutions is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Response time2 days
Pilot Home Services
4.2(
146
)

Serving Lothian, MD and surrounding areas

In business since 2011

Free estimates

Warranties offered

"Highly recommend for any insulation project. Dan Hope is extremely knowledgeable concerning home insulation and was pleasant to work with. I have cantilevered second story floors and poor insulation was causing a duct vent to develop condensation with this 2024 heat wave which caused moisture to drip down inside of my first floor ceiling. Dan fixed the insulation issue and then some. He inspected the house and advised improving the insulation around a room that sits above our garage that was notoriously difficult to temperature control. I would hire him again for another project in a heartbeat."
Before
After
Before
Before
After

+5

Response time12 hrs
Recommended by85%of homeowners
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FAQs for insulation service projects in Lothian, MD

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.

The Lothian, 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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