Find a insulation company in Washington, DC

Find insulation companies in Washington, DC

Find insulation companies in Washington, DC

Share a few details and we'll show you the best insulation companies in your area.
Zip code

Installation areas

Find insulation companies in Washington, DC

Share a few details and we'll show you the best insulation companies in your area.
Zip code

Installation areas

Top 10 insulation companies in Washington, DC

Homeowners agree: these Washington insulation companies are highly rated for knowledge, experience, communication, and more.
The Home Doctor

The Home Doctor

New on HomeGuide
11+ years in business
Serves Washington, DC
Welcome to The Home Doctor, your premier destination for top-quality exterior home improvements in the Greater DMV area. With over 30 years of expertise, we specialize in the full replacement of roofing, windows, siding, doors, gutters and attic insulation; all designed to enhance your home's longevity and curb appeal. Our factory-trained installers ensure that your warranty stays intact, guaranteeing long-lasting results. Plus, we offer a 100% price match guarantee to ensure you get the best value. When you choose The Home Doctor for your roofing needs, enjoy 0% interest or payments until 2026. We're proud to have an A+ rating with the BBB
RL Martin

RL Martin

4.8Excellent(12)
15 hires on HomeGuide
25+ years in business
Serves Washington, DC
Lester E. says, "Craftsmanship and commitment to produce quality results " Read more
Seymour’s Electrical

Seymour’s Electrical

5.0Exceptional(10)
6+ years in business
Serves Washington, DC
Gregory R. says, "Electrical and Wiring Repair I had a few outlets with low/no power. He was able to come the same day I contacted him and quickly diagnosed and fixed the problem in under an hour. Would definitely hire again. " Read more
Trana Construction Llc

Trana Construction Llc

New on HomeGuide
23+ years in business
Serves Washington, DC
We do work to customers satisfaction We
Tikal Painter

Tikal Painter

New on HomeGuide
5+ years in business
Serves Washington, DC
Runs good
Dream General Contractors LLC

Dream General Contractors LLC

4.8Excellent(5)
Offers online services
3 hires on HomeGuide
17+ years in business
Serves Washington, DC
Donald T. says, "They were very hard working, very humble, acceptable to changes and certainly excelled in delivering a Beautiful New Bathroom look, feel and overall picture perfect for my family. We will enjoy there excellent craftsmanship for many years to come. Hire these wonderful Team that worked so well together to completion. Don & Twila, Pasadena, Md" Read more
UR Handyman

UR Handyman

New on HomeGuide
Serves Washington, DC
At UR Handyman, we specialize in a wide range of home improvement services to enhance the beauty and functionality of your space. Based in Falls Church, VA, our expert team offers solutions including drywall installation and repair, interior and exterior painting, tile installation, and window repair. With a keen eye for detail and a commitment to quality, we also provide services such as furniture refinishing and epoxy floor coating. Trust UR Handyman to bring exceptional craftsmanship and personalized service to every project.
Deckwonders LLC

Deckwonders LLC

4.0(1)
1 hire on HomeGuide
15+ years in business
Serves Washington, DC
Roney M. says, "very efficient work ethic and outcome" Read more
A Pair Of Hands Contracting

A Pair Of Hands Contracting

5.0Exceptional(15)
2 hires on HomeGuide
18+ years in business
Serves Washington, DC
Marta M. says, " Install Concrete Driveways & Floors Rab called quickly when I submitted my project. He was quick to set up a date to come and look at my driveway and provide an estimate. Even when we chose to delay the project, we contacted Rab when we were ready and we still received the same quick response. Rab was on the site with his crew and made sure all of my concerns were addressed. Very pleased with final product." Read more
GT PRO-PAINTING AND DESIGN

GT PRO-PAINTING AND DESIGN

5.0(2)
2 hires on HomeGuide
17+ years in business
Serves Washington, DC
STEVE says, "HIGTH QUALITY" Read more

Your Insulation Installation Or Upgrade questions, answered

Answers to commonly asked questions from the experts on HomeGuide.

How much does insulation cost?

Insulation costs $1.00 to $4.50 per square foot installed, depending on the type, location, and R-value. Spray foam and rigid foam boards cost more than standard fiberglass batt insulation. Common locations in a home that require insulation include:

  • Attics
  • Basements
  • Ceilings
  • Crawl spaces
  • Garages
  • HVAC piping
  • Wall cavities

How much does attic insulation cost?

Attic insulation costs $1 to $4 per square foot installed or $500 to $6,000 total, depending on the attic size and insulation type. Common attic insulation types are blown-in, batt and roll, loose-fill, and spray foam.

Unvented attics should be insulated beneath the roof deck with rigid foam, spray foam, or reflective insulation. Vented attics should be insulated with batt and roll, blown-in, or spray foam.

Is insulation worth it?

Insulation is worth it because it improves energy efficiency. Proper insulation may reduce utility costs by 10% to 40%, depending on the home's location, current insulation level, and insulation type. Many older homes are under-insulated.

What is the best insulation type?

The best type of insulation used depends on the location:

  • Attics should use blown-in, batt and roll, or spray foam.
  • Basements should use rigid foam or flame-resistant batts.
  • Ceilings should use blown-in, batt and roll, or spray foam.
  • Crawl spaces should use rigid foam, batt and roll (in unvented spaces only), or spray foam.
  • Existing walls should use blown-in or injection foam.
  • New walls should use batt and roll, rigid foam, or spray foam.

How do I know when I need new insulation?

You may need new insulation if your utility bills have risen or your home has damage from:

  • Water
  • Fire
  • Pests
  • Mold

Can new insulation be added on top of old insulation?

You can add new insulation on top of old insulation unless it is wet or damaged by mold, mildew, or pests. If you choose to layer new insulation over old insulation, use blown-in or batt and roll. Older homes may have less insulation than the current standard, so adding more insulation may save money in energy costs in the long run.

How do I hire an insulation installer?

Start by searching our list of professional insulation contractors, then:

  • Get at least three free estimates to compare.
  • Read reviews and browse previous work on HomeGuide and Google.
  • Choose a company that is licensed, bonded, and experienced.
  • Verify their insurance, warranty, and guarantees.
  • Get a detailed estimate, contract, and warranty in writing before work begins.
  • Avoid making large payments up front and come up with a payment schedule instead.

After asking questions and verifying their credentials, hire the best insulation company in your area.

What questions should I ask insulation contractors?

When looking for local insulation companies, consider asking the following questions:

  • How long have you been in business?
  • Are you licensed, insured, and bonded?
  • What type of insulation and R-value would you recommend for me?
  • What personal protective equipment do you wear?
  • How long will this project take?
  • Will this job need an inspection or permit? If so, will you handle that?
  • What does your warranty include?
  • Can you give me a written estimate and contract?

Reviews for Washington insulation companies

Recent success stories from people in the Washington area.
Bernard S B.
Promptly and reasonably
RL Martin
Billy M.
Switch and Outlet Installation Ran two dedicated outlets and added two breakers for me. Worked alone. Took a little longer than I thought but he got it done. Great guy.
Seymour’s Electrical
Eni B.
Good
Dream General Contractors LLC
Brian M.
Install or Replace a Vinyl or PVC Fence Rab and his team were very responsive and flexible with scheduling. They also led the project in regards to discussing plans with the county permit office and navigating HOA discussions. The team worked hard and quickly. I would hire them again for a number of different needs not just fences.
A Pair of Hands Contracting
Aura L.
I recommend the best hardwood flooring installer, I was very happy for the great change that was made in my sweet home
GT PRO-PAINTING AND DESIGN
Angelica M.
On time, nice, trust worthy, and efficient service!
Salamanca Clean & Shiny LLC
Cat G.
Jose did an amazing job installing our frameless glass shower door. I had another contractor tell me it would be too difficult and I should return it, but Jose managed it in an afternoon and it looks perfect! He is very professional and punctual too.
JOSEPH REMODELING & FAMILY GENERAL CONTRACTOR
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Washington insulation companies by service