Solutions For
Your Energy Concerns

Outstanding Service. Reliable Results

Partner with a trusted insulation and energy-efficiency contractor serving DE, NJ, and PA.

Trusted Insulation Contractor Serving DE, NJ, and PA

Good insulation is one of the smartest ways to keep your home comfortable and reduce energy bills. At Energy Services Group, we help homeowners throughout New Castle and the surrounding areas improve comfort, efficiency, and long-term performance.
Whether you need new insulation, an energy audit, duct sealing, or air sealing, our team has the training and experience to get the job done right.

Why Homeowners Choose Us

Experience

Over 40 years of solving insulation and energy problems of every kind.

Experience

Over 40 years of solving insulation and energy problems of every kind.

Experience

Over 40 years of solving insulation and energy problems of every kind.

Experience

Over 40 years of solving insulation and energy problems of every kind.

Reliable Service You
Can Count On

No matter the project, we provide clear communication, professional workmanship, and proven results. After decades in the industry, we know what it takes to solve comfort, draft, and energy-loss issues the right way.

Why Pick Energy Services Group?

We’re ready to help with all your insulation and home-energy needs.

Our Comprehensive Energy Services

We offer complete home-energy solutions designed to improve comfort, reduce costs, and address the root cause of efficiency problems.

Attic Insulation

Your attic is one of the most common sources of energy loss. We assess current conditions and install insulation verified to meet DOE performance standards.
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Blower Door Testing

A blower door test measures exactly how much air your home leaks and where. We use diagnostic testing for both homeowner assessments and new construction code compliance.
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Crawl Space Insulation

An uninsulated crawl space lets moisture build and conditioned air escape. We insulate and seal crawl spaces using diagnostics-first methods with DOE-verified results.
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Duct Sealing & Testing

Leaky ducts can waste up to 30% of your heating and cooling. We test and seal ductwork to boost system efficiency.
Get Duct Sealing Services

Home Energy Audits

Find out exactly where your home is losing energy. Our audits identify issues and help you qualify for rebates through Energize Delaware.
Schedule an Energy Audit

New Construction Services

We provide HERS ratings, energy-code compliance, and insulation for new builds across Delaware and nearby areas.
View New Construction Services

Insulation Services

Keep your home comfortable year-round with professional attic, crawl space, spray foam, blown-in fiberglass, and insulation replacement services.
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Spray Foam Insulation

Spray foam insulates and air-seals in a single application, making it effective in hard-to-reach areas. Installed by a DOE-certified verifier with documented performance results.
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Common Energy Problems We Solve

High Energy Bills

Often caused by poor insulation, air leaks, or duct issues. We find the source and fix it.

Hot or Cold Rooms

Temperature swings usually mean insulation gaps or air leakage. We locate and correct them.

Drafts Around the Home

Air leaks around windows, doors, or outlets reduce comfort. Air sealing solves the issue.

Rebate Eligibility

Delaware offers strong incentives. Our audits help you qualify and maximize savings.

Professional Solutions.
Lasting Results.

From attic insulation to full weatherization upgrades, our BPI and RESNET-certified technicians deliver measurable improvements. Whether you need a quick fix or a whole-home upgrade, Energy Services Group is your trusted contractor in New Castle, DE and surrounding areas.

Service Area

We serve homeowners across Delaware, South Jersey, and Southeastern Pennsylvania, including:

Schedule an Appointment

For a free estimate, call (800) 908-7000.
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