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Find Insulation pros in Triangle

Avatar for Prudent Homes
Prudent Homes
4.7(
236
)

Serving Triangle, VA and surrounding areas

Approved

In business since 2002

Free estimates

Warranties offered

"David and his team were very professional and the work they did was excellent---we could tell the difference the next day. The temperature on the 2nd floor is several degree lower than before due to the new insulation and feels much more comfortable. David has solid knowledge regarding insulation and he explains things clearly. Definitely would recommend David and Prudent Homes to my friends and neighbors."
38 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for DMV Insulation
DMV Insulation
5.0(
6
)

Serving Triangle, VA and surrounding areas

Approved

In business since 2023

Free estimates

Warranties offered

"DMV Insulations is a great company to work with. The company focuses on your personal needs, always on time, and great customer service! Mark was able to answer any questions I had, and provided me with useful information. I would recommend this company to anyone with attic insulation needs."
Fiberglass Blow-in
Sanctuary insulation install.
Save energy, reduce waste, and lower your carbon footprint.
Loose fill insulation install.
Additional Photos

+5

8 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Comfenergy, LLC
Comfenergy, LLC
4.6(
54
)

Serving Triangle, VA and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Comfenergy was very professional thorough from the in-person estimate thru installation. Even though we didnt have a full energy audit, they still go over your entire home and tell you what should and what needs to be done. Some of the little things we did ourselves, or had our handyman. Then Comfenergy did the big part, seal and insulate the attic. We still had late 80's insulation and never a sealing done. It ended up being over an 8 hour project. They were not the cheapest estimate, but definitely the most in-depth review and recommendations provided. The two man team that did the actual work were very professional, showed us the work as the progressed, and good clean up job after all was done."
Additional Photos
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Additional Photos

+68

27 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Discount Energy Services
Discount Energy Services
4.3(
89
)

Serving Triangle, VA and surrounding areas

Approved

In business since 1984

Free estimates

Warranties offered

"We had a great experience with Discount Energy Services. They insulated our entire attic and crawl space, and from start to finish they were professional, responsive, and easy to work with. The turnaround time was impressively quick, the quality of the work was excellent, and we felt the value was very good for the scope of the project. The team was efficient, knowledgeable, and clearly took pride in doing the job well. We really appreciated how smoothly the whole process went and would gladly recommend Discount Energy Services to anyone looking for high-quality insulation work."
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+2

19 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Northern Virginia Insulation and Exteriors, LLC
Northern Virginia Insulation and Exteriors, LLC
4.1(
159
)

Serving Triangle, VA and surrounding areas

Approved

In business since 2014

Free estimates

Credit card accepted

"Jeff and his crew were great to work with. They re-insulated my attic and did an excellent job at a fair price. I highly recommend them and would happily hire them again for other work on my home. 10 out of 10."
Gallery
38 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Founders Insulation
Founders Insulation
4.9(
17
)

Serving Triangle, VA 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 time10 hrs
316 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for The Fifth Fuel of Virginia, LLC
The Fifth Fuel of Virginia, LLC
4.6(
58
)

Serving Triangle, VA and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I had multiple estimates and Fifth Fuel was the most professional and reasonable. Josh came to my house, took pictures of my attic and explained the different choices of insulating the attic. He provided an estimate in writing the same evening. The installers arrived on time, sent me photos of the before and after. They left the house clean with no debris. The result is a huge improvement in the temperature between the upstairs and down. I couldn’t be happier with them! Outstanding!! Thank you!"
49 neighbors recently requested a quote
Recommended by92%of homeowners
Lloyd's Insulation Service
4.4(
129
)

Serving Triangle, VA and surrounding areas

In business since 2003

Free estimates

Small jobs welcome

"Bill knows what he is doing and holds himself to high standards. We wanted to upgrade the attic, and when he left, we have insulation carefully and well placed and blanket over the access. I'm very satisfied. This attic is now really well insulated, he did a little caulking around the access stairs, came on time, got done a little more quickly than he had estimated, and everything nice and clean."
BILL LLOYD - OWNER
Recommended by99%of homeowners
Avatar for Northern Virginia Insulation
Northern Virginia Insulation
4.1(
158
)

Serving Triangle, VA and surrounding areas

In business since 2014

Free estimates

Credit card accepted

"I got my attic insulation replaced with them, and I’m very happy with the service. The team was clean, professional and got the job done quickly. Before the project, the upstairs was always freezing in the winter, but now the temperature is consistent across all floors.I definitely recommend them!"
Recommended by90%of homeowners
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FAQs for insulation service projects in Triangle, VA

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 Triangle, VA 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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