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Air Sealing Services in Massachusetts

Professional air sealing services for Massachusetts homeowners. Identify and reduce air leakage with a no-cost Mass Save® home energy assessment.

Air Sealing Services in Massachusetts

What Is Air Sealing

Air sealing is the process of locating and closing gaps in a home’s building envelope where indoor air escapes and outdoor air enters. Even small openings can affect heating and cooling performance, particularly during winter months.

Common leak points include:

  • Attic penetrations and recessed lighting
  • Gaps around ductwork and plumbing
  • Basement rim joists
  • Window and door framing
  • Utility openings

Sealing these areas improves temperature consistency and reduces unnecessary strain on HVAC systems.

Why Air Leakage Matters in Massachusetts Homes

New England homes experience significant seasonal temperature swings. During winter, warm air rises and escapes through attic gaps. This creates negative pressure that pulls cold air in from lower levels.

This process increases heating demand and can contribute to drafts and uneven temperatures.

Air sealing addresses these pressure imbalances before adding insulation, making it a foundational step in improving overall energy performance.

What to Expect During an Air Sealing Project

Air sealing typically begins with a Mass Save® home energy assessment. During this visit, a certified contractor evaluates insulation levels and identifies leakage areas.

If the home qualifies, certain air sealing improvements may be completed as part of the program.

Work may include:

  • Sealing attic bypasses
  • Applying foam sealant around penetrations
  • Installing weatherstripping
  • Addressing rim joist leakage

The scope depends on the condition of the home.

Air Sealing and Insulation

Air sealing and insulation work together. Insulation slows heat transfer, while air sealing prevents air movement. Performing insulation without addressing air leaks reduces effectiveness.

For this reason, air sealing is often completed before insulation upgrades.

Mass Save Incentives

Massachusetts homeowners may qualify for incentives through the Mass Save program. Eligibility depends on utility participation and completion of a no-cost home energy assessment.

Incentives may include:

  • No-cost air sealing
  • Partial coverage for insulation upgrades
  • Access to HEAT Loan financing

Program details are subject to change. Eligibility is confirmed during the assessment process.

Air Sealing Contractor in Massachusetts

Colt Home Services performs air sealing work throughout Greater Boston and surrounding communities. As a Mass Save approved contractor, assessments and qualifying upgrades are completed according to program guidelines.

Homeowners receive documentation outlining recommended improvements and available incentives before proceeding.

Schedule a Home Energy Assessment

Homeowners interested in air sealing services in Massachusetts can begin with a no-cost Mass Save home energy assessment. The evaluation identifies leakage areas and outlines potential rebate eligibility.

Appointments can be scheduled directly with Colt Home Services.

Need a plumber too?

A failing water heater or boiler is often both a plumbing job and a Mass Save conversation. See water heater installation and boiler repair.

Common questions

Who is eligible for Mass Save rebates?

Homeowners who are customers of a participating Massachusetts utility, live in a one- to four-unit residential property, and complete a no-cost home energy assessment with an approved contractor. Eligible rebates are outlined after the assessment, based on the home's condition and recommended improvements.

What is a Mass Save no-cost home energy assessment?

A visit that reviews insulation, air leakage, and heating and cooling systems to identify efficiency improvements and rebate eligibility. Afterward you receive a written report outlining recommended upgrades and available incentives.

What rebates are available through Mass Save?

Mass Save offers incentives for qualifying upgrades such as heat pumps, insulation and air sealing, and certain ENERGY STAR equipment, plus HEAT Loan financing. Exact amounts and eligibility are set by the program and confirmed during your assessment; see MassSave.com for current offers.

What is the Mass Save HEAT Loan?

A Mass Save program loan offering 0% interest financing, up to program limits, for eligible energy efficiency upgrades such as heating systems, heat pumps, insulation and air sealing. Eligibility is determined after a home energy assessment.

Why work with Colt Home Services?

Colt is an owner-operated Mass Save Home Performance Contractor based in Waltham. We provide home energy assessments, insulation and air sealing in line with Mass Save program guidelines, give you clear written recommendations, and help with rebate documentation.

How do I schedule a Mass Save home energy assessment?

Call (617) 446-3690, Monday through Friday from 8am to 8pm, or book online.

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