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Stay warm and save energy

with one of the top insulation companies in DMV

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EDGE Energy is a six-time ENERGY STAR Contractor of the Year. We've completed thousands of insulation projects since 2006 - all with a satisfaction guarantee.

3 steps to work with a quality insulation company

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#1. Reach out

Give us a call at (888) 586-3343 to book a free consultation or a home energy audit. We’ll asses your best ways to seal air leaks and add insulation, then provide you with a tailored proposal with priorities, pricing, available rebates, and tax credits.

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#2. Install insulation

EDGE Energy has completed more than 5,000 projects since 2006. No two projects are the same. We’ll make sure you get the right insulation for your home, and if anything doesn’t go to plan, our insulation projects come with a 100% satisfaction guarantee.

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#3. Start saving

You’ll start saving on your energy bills from the first day that your insulation project is complete. We’ll also help you get every dollar of rebates and tax credits that you deserve. We’ve helped homeowners collect more than $24M in tax credits so far. 

There are plenty of insulation companies out there.

See why our neighbors in the DMV choose EDGE Energy.

Got questions about insulation for your home?

What's it like to install insulation with EDGE Energy?

How we cut Kadir's bills by 21% with insulation and air sealing

When we arrived, we found that Kadir had little insulation and a gaping hole in his attic.

By sealing the big hole (plus lots of little holes) and adding insulation, we reduced Kadir’s energy waste by 21%.

The best part?

We helped Kadir and his family secure rebates that covered the entire cost of the project, which included a new heat pump, heat pump water heater, solar panels.

More photos of the team at work

We're here to help.

Reach out today →

Reach out today

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What sets EDGE Energy apart?

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Backed by 18+ years of experience, we specialize in insulation solutions that help Maryland, Washington, DC, and Virginia homeowners seal drafts, lower energy bills, and even out temperature differences.

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Since 2006, we’ve completed over 5,000 energy-saving projects. From minor drafts to major energy loss, we’ve handled it all and can customize an air sealing and insulation plan that works for your home.

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We’ve secured over $24 million in tax credits for our clients, helping them lower the cost of insulation and air sealing upgrades. We’ll ensure you get every available rebate and tax credit to maximize your savings.

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What sets us apart from other insulation companies is our whole-home approach. Not only do we offer comprehensive home energy audits, but we also install a range of energy saving upgrades, including solar panels and HVAC systems. You can feel 100% confident when you hire us.

Common Questions:

Insulation installation and choosing between insulation companies in Washington DC, Maryland, and Virginia

If your home has uneven temperatures, high energy bills, or frequent drafts, you may need more insulation. The best way to know for sure is through a home energy audit, but here are some common signs:

  1. Uneven temperatures – Some rooms feel colder in the winter or hotter in the summer.
  2. High energy bills – Heating and cooling costs are rising despite normal usage.
  3. Drafty areas – You feel air leaks around windows, doors, or along floors and walls.
  4. Cold floors and walls – Interior walls, ceilings, and floors feel cold to the touch in winter.
  5. Ice dams on the roof – Snow melts unevenly, causing ice buildup along the edges.
  6. Old or compressed insulation – Insulation has settled over time, reducing its effectiveness.
  7. Visible floor joists in the attic – If you can see the joists, you likely need more insulation.

Even if your home was insulated when it was built, insulation can degrade or become less effective over time. A professional assessment can determine if you need attic insulation, wall insulation, crawl space insulation, or air sealing to improve your home’s efficiency.

Want to find out if your home is under-insulated?

Call us at (888) 532-0197 to schedule a consultation and get a personalized insulation plan.

If certain rooms in your home feel too hot in the summer or too cold in the winter, it’s often due to poor insulation, air leaks, or uneven airflow.

Think of it like wearing a winter jacket

Imagine walking outside on a freezing day with your jacket unzipped—cold air seeps in, and you lose heat quickly. That’s exactly what happens in a home with poor insulation and air leaks.

Even if your heating or cooling system is running, gaps in your home’s barrier let air escape, making some rooms uncomfortable. Sealing air leaks and upgrading insulation is like zipping up your jacket—it creates a continuous layer of protection around your home, keeping temperatures more stable year-round.

What causes uneven temperatures?

  1. Insufficient insulation – Too little insulation in your attic, walls, or crawl space allows heat to escape in winter and enter in summer.
  2. Air leaks – Gaps around windows, doors, ductwork, and recessed lighting let conditioned air escape and outdoor air in.
  3. Ductwork issues – Leaky, uninsulated, or poorly designed ducts reduce airflow, making some rooms harder to heat or cool.
  4. Sun exposure – South- and west-facing rooms heat up more during the day, while north-facing rooms stay cooler.
  5. Blocked or closed vents – Furniture, rugs, or dust buildup can restrict airflow, leading to uneven temperatures.
  6. Multi-story homes – Heat naturally rises, making upstairs rooms warmer in summer and colder in winter unless insulation and air sealing are properly balanced.

How to fix temperature differences

The best way to diagnose and fix these issues is with a home energy audit. Our team uses blower door tests and thermal imaging to pinpoint air leaks, insulation gaps, and duct problems, then recommends solutions tailored to your home.

Want to even out temperatures in your home?

Call us at (888) 532-0197 to schedule a consultation and find the right insulation and air sealing solutions for your home.

Insulation and air sealing work together, but they serve different purposes when it comes to improving your home’s efficiency and comfort.

Think of your home like a winter jacket

  • Insulation is like the thick padding in your jacket—it slows down heat transfer, keeping warm air inside in winter and outside in summer.
  • Air sealing is like the zipper and seams—it stops unwanted airflow, preventing drafts and keeping conditioned air where it belongs.

What does insulation do?

Insulation reduces heat transfer, helping your home stay warmer in the winter and cooler in the summer. Common types include:

  • Attic insulation to prevent heat from escaping through the roof
  • Wall insulation to reduce temperature swings between rooms
  • Crawl space and basement insulation to keep floors warmer in winter
  • Spray foam, cellulose, and fiberglass for different performance needs

But insulation alone isn’t enough—if air leaks aren’t sealed first, warm or cool air can still escape, making your home less efficient.

What does air sealing do?

Air sealing stops drafts and unwanted airflow by closing gaps, cracks, and openings in your home’s structure. It’s especially important around:

  • Attic hatches and recessed lighting
  • Gaps around doors and windows
  • Plumbing and wiring holes
  • Basement rim joists and crawl spaces

Without proper air sealing, insulation won’t perform as well because air leaks allow heated or cooled air to escape.

Which one does my home need?

Most homes benefit from both insulation and air sealing. A home energy audit can identify where your home is losing energy and recommend the right upgrades.

Want to make your home more energy efficient?

Call us at (888) 532-0197 to schedule a consultation and find the best insulation and air sealing solutions for your home.

Each type of insulation has its own strengths, depending on your home’s needs and budget. Here’s a breakdown of how spray foam, cellulose, and fiberglass insulation compare in terms of performance, cost, and best use cases.

Spray foam insulation

Best for: Air sealing, high-performance insulation, and moisture resistance

Spray foam expands to fill gaps and cracks, creating both an insulation barrier and an air seal in one step. It’s available in two types:

  • Closed-cell spray foam – Provides the highest R-value per inch, acts as a moisture barrier, and adds structural support.
  • Open-cell spray foam – More affordable than closed-cell, expands more, and is ideal for soundproofing.

Pros:

  1. Provides superior air sealing, reducing drafts and energy loss
  2. High R-value per inch, making it ideal for tight spaces
  3. Adds moisture resistance and can help prevent mold growth

Cons:

  1. More expensive than cellulose or fiberglass
  2. Requires professional installation
  3. Can take longer to off-gas after application

Cellulose insulation

Best for: Eco-friendly insulation, attics, and hard-to-reach areas

Made from recycled paper treated with fire retardants, cellulose insulation is a cost-effective and environmentally friendly option. It’s often blown into attics or walls to fill gaps and provide good coverage.

Pros:

  1. Made from recycled materials, making it an eco-friendly choice
  2. Effective at reducing air movement and filling irregular spaces
  3. Works well for retrofitting older homes

Cons:

  1. Can settle over time, reducing its effectiveness
  2. More prone to moisture absorption compared to spray foam
  3. May require periodic reapplication to maintain performance

Fiberglass insulation

Best for: Budget-friendly insulation and standard applications

Fiberglass is one of the most common insulation materials and comes in batts (pre-cut rolls) or blown-in form. It’s widely used in walls, attics, and crawl spaces due to its affordability and availability.

Pros:

  1. Budget-friendly and widely available
  2. Resistant to moisture and does not settle over time
  3. Can be installed as batts (DIY-friendly) or blown-in for better coverage

Cons:

  1. Does not provide air sealing on its own—requires additional air sealing measures
  2. Can be irritating to skin and lungs during installation
  3. Lower R-value per inch compared to spray foam

Which insulation type is right for your home?

The best insulation depends on your home’s structure, air leakage, and budget. In many cases, a combination of air sealing and multiple insulation types will provide the best results.

Need expert advice on insulation?

Call us at (888) 532-0197 to schedule a consultation and find the best insulation solution for your home.

An energy audit isn’t required before upgrading insulation, but it’s highly recommended—especially if you’re trying to solve comfort issues like temperature differences between rooms or floors. Without an audit, it’s harder to pinpoint where air leaks, insulation gaps, or ventilation issues are impacting your home’s efficiency.

When is an energy audit most helpful?

  1. If certain rooms are hotter or colder than others – An audit helps identify where air is escaping and whether insulation, air sealing, or ductwork adjustments are needed.
  2. If you have persistent drafts or high energy bills – A blower door test can pinpoint air leaks so they can be sealed before insulation is installed.
  3. If your attic insulation is old or insufficient – Thermal imaging can reveal hidden weak spots that need attention.
  4. If you want to qualify for rebates and incentives – Many programs require an audit to access insulation and air sealing rebates.

How an energy audit improves insulation upgrades

An energy audit allows us to drill down into your home’s specific needs, ensuring that air leaks are sealed, insulation is installed where it matters most, and your home gets the best possible efficiency boost.

Get the best results from your insulation upgrade

Call us at (888) 532-0197 to schedule an energy audit and find out exactly where your home needs air sealing and insulation.

Yes, insulation plays a key role in preventing ice dams, but it works best when combined with air sealing and proper attic ventilation.

How ice dams form
Ice dams occur when warm air from inside your home leaks into the attic, heating the roof and causing snow to melt. The melted water flows down and refreezes at the colder roof edges, creating a ridge of ice that traps water. Over time, this can lead to roof leaks, water damage, and mold growth.

How insulation helps prevent ice dams

  1. Keeps heat inside your home – A well-insulated attic reduces heat transfer, keeping warm air where it belongs.
  2. Reduces temperature differences – Prevents hot spots on your roof that cause uneven snow melting.
  3. Works best with air sealing – Even the best insulation won’t stop ice dams if warm air is leaking into the attic.

A complete solution for ice dam prevention

  • Air sealing closes gaps and cracks that allow warm air to escape.
  • Attic insulation slows heat transfer and maintains a stable indoor temperature.
  • Proper ventilation keeps the attic cool and prevents snow from melting unevenly.

The best way to determine if your home needs better insulation, air sealing, or ventilation is with a home energy audit. Our team uses blower door tests and thermal imaging to pinpoint areas of heat loss and recommend the right solutions.

Want to eliminate ice dams for good?

Give us a call at (888) 532-0197 to schedule a consultation and find out exactly what your home needs.

For most homes, insulation installation is a quick and low-disruption process, but the exact impact depends on the type of insulation being installed and where it’s going.

What to expect during installation

  1. Attic insulation – Typically takes a few hours to a day, depending on the size of the space. Our team works from the attic, so you can stay in your home with minimal disruption.
  2. Wall insulation – Blown-in insulation can be added through small holes in the drywall or exterior siding, making it a non-invasive option. If full insulation replacement is needed, drywall removal may be required.
  3. Crawl space or basement insulation – Usually takes a day or less. Work is done in the crawl space or basement, so household activity isn’t affected.
  4. Spray foam insulation – This process requires more time, typically a day or two, because the foam needs to cure. Some areas may need to be vacated for a short period due to off-gassing.

Will there be a mess?

We take care to contain dust and debris during installation. After the work is complete, we clean up the area and make sure everything is left in good condition.

How soon will I notice a difference?

Many homeowners feel an improvement right away, with fewer drafts and more even temperatures throughout their home. You’ll also start to see energy savings on your utility bills over time.

Get high-performance insulation with minimal disruption

Call us at (888) 532-0197 to schedule a consultation and learn more about upgrading your home’s insulation.