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Find Spray foam insulation 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
303 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
23 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

31 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
Avatar for Quality Insulation
Quality Insulation
5.0(
522
)

Serving Washington DC, DC and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"The company deserves 1000 stars l. Chris came and gave a well thorough inspection and estimate of my actic. Had my concerns and expectations, I had several other companies come and give quotes for double the price. Especially ORKIN. Orkin tried to use care tactics to sign contract without any explanation. Chris gave the quote and the crew arrived a week later as scheduled. Chris has a great work crew who were professional , caring, and did high quality work. Every step of the way, I was communicated and was filled in. I was shown before , during and after photos. And end results were UNBELIEVABLE Chris is fair and honest, he gives reasonable prices and will not take advantage of his customers."
Recommended by99%of homeowners
Avatar for Valor Mold Removal
Valor Mold Removal
5.0(
102
)

Serving Washington DC, DC and surrounding areas

In business since 2005

Credit card accepted

"David was great! He came and explained everything that his team was going to do to remediate our wall of mold in the basement. Once the job was finished, our numbers were minuscule (that is good in the mold business). His team came in, cleaned out the mold, and CLEANED EVERYTHING afterward! I'd give them five stars just for that. I'd recommend Valor Mold to all of my family and friends."
Before
During
After
Before
During

+8

Recommended by99%of homeowners
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FAQs for spray foam insulation projects in Washington DC, DC

Local and federal rebates are available for insulation installation, which can significantly reduce your overall costs. Many utility companies offer incentives or rebates to homeowners who improve their home's energy efficiency. Contact your local energy provider or government agencies to learn about available programs in your area, and consult with a professional insulation installer to maximize your savings.

It's not necessary to remove old insulation before adding new insulation, as long as the existing insulation is in good condition—dry, free of mold, and not damaged. Adding new insulation on top of old insulation can improve your home's energy efficiency by increasing the overall R-value. However, if the old insulation is wet, moldy, or damaged, it's best to remove it before installing new insulation to prevent potential health risks and ensure optimal performance.

Insulating a house takes between five and twelve hours for batts or boards, and two to five hours for spray foam or blown-in insulation. The exact time depends on the size of your home, the type of insulation, and the accessibility of the areas being insulated. Keep in mind that projects may take longer if old insulation needs removal, if there's a larger square footage, or if spaces are difficult to reach.