Robert and his team were fantastic to work with. Communication was great from start to finish, showed up on time and they were very efficient with the job. They left the work site clean and tidy, and were polite and positive.

- Jared W.

HomeAdvisor Elite Service Award - Genesis Insulation, LLC

Top Rated Business by HomeAdvisor

Rated & Reviewed HomeAdvisor Pro

HomeAdvisor Reviews - Air-Tight Weatherization, LLC

Are You Letting Money Slip Through the Cracks of Your Home?

Talk to an insulation contractor in Middleton, Waltham, Cambridge & Newton, MA

Do you want to make your home or business more energy-efficient? One of the best ways to do that is by installing new insulation. You can turn to Air-Tight Weatherization, LLC for comprehensive insulation services. We're an insulation contractor serving residential and commercial clients in Middleton, Waltham, Cambridge & Newton, MA and the surrounding area, including the Massachusetts coast and parts of New Hampshire and Maine.

Our team will work with you to determine exactly what sort of insulation you need for your home or building, whether it's standard or spray foam insulation. Call 978-998-4684 right now for a free estimate on our services.

Residential Insulation

Maintain a clean and energy-efficient household.

Residential Insulation

Commercial Insulation

Don't waste any of your company's money on highs energy costs.

Commercial Insulation

New Construction Insulation

Make sure your home is designed to be energy-efficient.

New Construction Insulation

Types of Insulation

Find the right insulation for your home or business facility.

Types of Insulation

Let us handle all your insulation needs

If you're looking for an insulation contractor in the Middleton, Waltham, Cambridge & Newton, MA area, look no further than the professionals at Air-Tight Weatherization, LLC. You can trust us to provide top-quality residential or commercial insulation services because we're:


our owner has been providing insulation services for over 30 years.


we can install a range of insulation types; we'll find the right one for your home or business.


our team is dedicated to providing warm customer service and always treating our clients with respect.

Highly rated

our clients have left us glowing reviews on HomeAdvisor.

Do You know What Type of Insulation Will Work in Your Home?

Call Air-Tight Weatherization, LLC for your free consultation today!

  • Air-Tight Weatherization, LLC

    50 Rundlett Way
    Middleton, MA 01949


    Call Us
    Phone: (978) 998-4684

    Mon: 7:00AM-4:00PM
    Tue: 7:00AM-4:00PM
    Wed: 7:00AM-4:00PM
    Thu: 7:00AM-4:00PM
    Fri: 7:00AM-4:00PM
    Sat: By Appointment Only
    Sun: By Appointment Only