Save Energy. Save Money.

Find out what The Weatherize Guyz can do for you

Your house is cold. Not just a bit chilly, but cold. You crank up the heat, but that only provides temporary relief. Where’s all that heat going? If your house is like most in the U.S., your heat is escaping through the ceilings, walls, floors and doors.

The Weatherize Guyz, LLC can keep warm air inside your house where it belongs. We offer weatherization services in Derry, NH and the surrounding areas. You can count on us to seal and insulate your home to make it more energy efficient. This will not only increase the life of your HVAC system, but also save you money on your monthly energy bills.

Call 603-425-5600 now to learn more about our weatherization services. You can request an estimate right away.


Learn about The Weatherize Guyz and our values to see why clients trust our weatherization services.

Air Sealing

Rely on The Weatherize Guyz to seal the crevices in your home and keep air from leaking out.

Blown-In Cellulose Insulation

If your walls and attic aren’t insulated properly, contact The Weatherize Guyz right away.


Combine all of our services into a custom weatherization plan for your home.

Why choose The Weatherize Guyz?

At The Weatherize Guyz, we’re dedicated to providing dependable weatherization services in Derry, NH and the surrounding areas. You can trust us to make your home more energy efficient because:

  • We’re skilled: we have over 15 years of weatherization experience
  • We’re affordable: we partner with low-income housing programs, and we work hard to keep our costs low
  • We’re highly qualified: our work consistently passes a wide range of government and third-party inspections

Schedule an Appointment Today

Ask about our low-income assistance programs

  • The Weatherize Guyz, LLC

    Derry, NH 03038


    Call Us
    Phone: (603) 425-5600

    Mon: 8:00AM-4:00PM
    Tue: 8:00AM-4:00PM
    Wed: 8:00AM-4:00PM
    Thu: 8:00AM-4:00PM
    Fri: 8:00AM-4:00PM
    Sat: Closed
    Sun: Closed