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.
Chris Guardado

Chris Guardado

5.0(3)
25+ years in business
Serves Washington, DC
Laura E. says, "He was great to work with and did a fantastic job with our fence. Looking forward to working with him again in the future." Read more
Tikal Painter

Tikal Painter

New on HomeGuide
5+ years in business
Serves Washington, DC
Runs good
REMODELING&PAINTING JIREH

REMODELING&PAINTING JIREH

4.8(4)
14 hires on HomeGuide
14+ years in business
Serves Washington, DC
Abebe A. says, "Very positive experience with Lisset. They did a fantastic job repairing and refinishing my deck. I will hire Lisset and company again." Read more
Kalyx Green Design & Build

Kalyx Green Design & Build

5.0(3)
2 hires on HomeGuide
29+ years in business
Serves Washington, DC
Lauren P. says, "John Ahrar gives personal attention. He is thorough, thoughtful, reliable, and honest. He delivers an excellent and timely work product. He's renovated two houses (gut jobs), made basic home improvements to my current home, and built a garage for us." Read more
RL Martin

RL Martin

4.8Excellent(12)
23 hires on HomeGuide
25+ years in business
Serves Washington, DC
Lester E. says, "Craftsmanship and commitment to produce quality results " Read more
All Resolution Construction

All Resolution Construction

New on HomeGuide
1 hire on HomeGuide
24+ years in business
Serves Washington, DC
With an exceptional depth of experience and proficiency spanning across commercial, industrial, institutional, and residential sectors, All Resolutions consistently assumes a pivotal role within the project development process, often engaged from the project's conceptual inception. Through close collaboration with development, architectural, and mechanical engineering teams, we contribute significantly to project planning and cost management, regardless of its scale. At All Resolutions, our unwavering commitment centers on delivering superior quality service punctually and consistently. Our approach hinges on close partnership with our clien...
JOSEPH REMODELING & FAMILY GENERAL CONTRACTOR

JOSEPH REMODELING & FAMILY GENERAL CONTRACTOR

5.0(4)
5 hires on HomeGuide
20+ years in business
Serves Washington, DC
Aaron Robert G. says, "Always punctual and excellent work" Read more
Roman Painting Inc

Roman Painting Inc

New on HomeGuide
8+ years in business
Serves Washington, DC
Hola mi nonbre es roman bonilla espero te encuntres bien de salud tu y tu familia tengo 8 años de expercia en olos trabjos que te vengo a ofrecer
MrDoItAll

MrDoItAll

New on HomeGuide
6+ years in business
Serves Washington, DC
Quick and quality work guaranteed every time. I strive to exceed expectations on all inquiries big or small and to treat all properties as if I was working on my own home. My motto is to never cut corners do it right the first time.
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

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.
Letivette L.
Thank you for all the remodeling job, Professional, impeccable job,, on time. I could mot he happier with the results! Beyond expectations
Chris Guardado
John P.
Positive: Professionalism, Punctuality, Quality, Responsiveness, Value Lisset is an absolute professional who takes 100% pride in her work. She stand by her work and is very courteous, easy to work with, and I would highly recommend her for any job. She is that great of a professional.
REMODELING&PAINTING JIREH
Paul J.
An excellent experience on excavation and concrete pour and finish of a foundation and slab for a carport / garage. They followed my plans and worked with me on recommendations and solutions to grading conditions. John and his crew were a pleasure to work with and I look forward to working with them again!
Kalyx Green Design & Build
Bernard S B.
Promptly and reasonably
RL Martin
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
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
Kent C.
Top notch Professionals! Ray Kim keeps everything on track and was great to work with. They knew exactly what documents they needed to move the project forward. Thank you for great looking basement. Thanks
Evershine Construction, Inc.
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Washington insulation companies by service