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.
SAVE ENERGY. SAVE MONEY
Find out what The Weatherize Guyz can do for you
Our Latest Work
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.
Get in Touch
Call 603-809-4511 now to learn more about our weatherization services. You can request an estimate right away or you can also drop your message by filling up our form on our contact page, we will get in touch with you as soon as possible
What We Do
Our Services
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.
Attic Ventilation
If your walls and attic aren’t insulated properly, contact The Weatherize Guyz right away.
Cellulose Insulation
Combine all of our services into a custom weatherization plan for your home.
Fiberglass Insulation
An effective way to increase thermal efficiency is to minimize convection by keeping cold air “out of circulation”.
Replacement Doors & Windows
Our window and door products are easy to maintain and designed with a tilt-in sash for easy cleaning.
Choose a Weatherization Firm that's committed to you
Count on us for affordable services
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 highly qualified: our work consistently passes a wide range of third-party inspections

Schedule your appointment
Do you have any questions? or a quote for your new project? contact us today