Top-rated batt, rolled or reflective insulation install or upgrade pros.

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Find Batt, rolled or reflective insulation install or upgrade pros in Washington DC

Avatar for Founders Insulation
Founders Insulation
4.9(
15
)

Serving Washington DC, DC and surrounding areas

Angi Approved

In business since 2022

Free estimates

Credit card accepted

"From initial contact to site visit to quotation service and follow-up, Brian and team at Founders Insulation provided an easygoing and excellent experience. They were able to accommodate our insane schedule when they had an unexpected opening, and did fantastic work, adding some essential services just the day before they arrived. Will work with them again in a heartbeat. Before, during and after photos attached."
Exterior Walls
Exterior Walls
Roof line
Exterior Walls
Exterior Walls

+11

Response time12 hrs
300 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Koala Insulation of Washington DC
Koala Insulation of Washington DC
5.0(
5
)

Serving Washington DC, DC and surrounding areas

Angi Approved

In business since 2025

Free estimates

Warranties offered

Here at Koala Insulation of Washington DC, we pride ourselves on our professionalism, as well as our ability to complete every job to the homeowner's total satisfaction. We never leave a job unfinished, or a homeowner not 100% satisfied with our level of service. We handle insulation work in Washington DC and the surrounding areas - Call today!\n\n

Project Photos
Project Photos
24 neighbors recently requested a quote
Avatar for ROI Construction LLC
ROI Construction LLC
4.6(
10
)

Serving Washington DC, DC and surrounding areas

Angi Approved

In business since 1974

Free estimates

Warranties offered

"Very pleased with the roofing and siding work performed by ROI Construction. Jose was especially helpful and very knowledgeable in all areas of home repair, including roofing, skylights, trim and siding. Brooke did a great job scheduling and managing the project. Highly recommend ROI for your roofing/remodeling needs."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

26 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Desire Masonry Construction, LLC
Desire Masonry Construction, LLC
4.9(
9
)

Serving Washington DC, DC and surrounding areas

Angi Approved

In business since 2017

Free estimates

Emergency services offered

"Desire Masonry Construction, LLC ensured everything went smoothly and effortlessly. Their team showed up promptly, worked with great efficiency, and left the site spotless after finishing the job. The entire process was incredibly straightforward and trouble-free. Their professionalism and attention to detail were evident throughout, making the experience as easy and pleasant as possible. I’m very satisfied with the outcome and would highly recommend their services."
Bluestone Patio & Bench
Natural Stone Retaining Wall
Bluestone Steps
Bluestone Steps
Bluestone Steps

+28

Recommended by100%of homeowners
FAQs for batt, rolled or reflective insulation install or upgrade projects in Washington DC, DC

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 Washington DC, DC 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.