# Attic Sealing: Making Your Way Beyond Air Leaks > Attic sealing is a solid strategy for preventing energy from leaking out of your attic and moisture from leaking in. Even if your home is adequately insulated (many Metrowest Boston homes are not), pr... [![attic sealing Boston, MA area ](https://bc.rodenhiser.com/wp-content/uploads/2011/08/attic-insulation.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2011/08/attic-insulation.jpg)Attic sealing is a solid strategy for preventing energy from leaking out of your attic and moisture from leaking in. Even if your home is adequately insulated (many Metrowest Boston homes are not), precious conditioned air can still seep through the insulating material. [![attic sealing Boston, MA area ](https://bc.rodenhiser.com/wp-content/uploads/2011/08/attic-insulation.jpg)](https://bc.rodenhiser.com/wp-content/uploads/2011/08/attic-insulation.jpg) Indoor air can often leak into your attic around penetrations from your upper story, coming up through the attic floor. This includes lighting fixtures, pipes, ductwork, wiring and attic hatches. Moisture can also be a problem, seeping up with humid indoor air into the attic. Bathrooms, stoves and household vents directing [humidity](https://bc.rodenhiser.com/rodenhiser-blog/proper-humidity-control-is-key-to-comfort-and-health.html) into the attic can be especially troublesome. Water can ruin insulation and create the perfect environment for [mold growth](https://bc.rodenhiser.com/rodenhiser-blog/manage-indoor-air-quality-with-these-tips.html). Attic sealing can not only [save money](http://www.rodenhiser.com/air-conditioning-framingham/air-conditioning-newton.html), but can make your home a safer place. Here are a few simple tips: - **Seal big leaks first.** If you have an open space between your ceiling and attic floor (a dropped ceiling), it's often used for lighting fixtures and ducts, but can waste energy. Look between the attic floor studs. You’ll have to pull the insulation back or scoop it out to seal between them. Use a rigid material like reflective foil. - **Seal smaller air leaks.** Caulk and expanding spray foam are good materials to plug up the more manageable leaks. Be careful with spray foam, as it's very sticky and hard to get off skin and clothing. Caulk is the best material to use around electrical boxes. - **Seal around chimneys.** Flues and chimneys require heat-resistant sealing, sometimes known as “flashing.” Aluminum sheeting or high-temperature caulk should work. You may have to cut or trim the aluminum to fit. **Wear protective gloves and use caution!** Make sure insulation doesn’t rest flush against the chimneys. - **Weatherstrip the attic hatch.** Self-adhesive weather-stripping is convenient and prevents massive energy loss around the hatch door. A high-quality roof and adequate insulation are also key factors in maximizing efficiency. Attic sealing can be a daunting task for many Metrowest Boston homeowners. [Call Rodenhiser](http://www.rodenhiser.com/call-rodenhiser/book-online.html) Plumbing, Heating & Air Conditioning for a professional touch. Our friendly team will get your project done right the first time, every time! ***Our goal is to help educate our customers about energy and home comfort issues (specific to HVAC systems).  For more information about* *attic sealing **and other HVAC topics, download our free [Home Comfort Solutions Guide](https://bc.rodenhiser.com/download-the-home-comfort-solutions-guide.html).***** ***Rodenhiser Plumbing, Heating and Air Conditioning* *serves the Route 495/128 area of Massachusetts.* *[Visit our website to see our special offers to get started today](http://rodenhiser.com/)!*** ***Photo courtesy of*** ***[Shutterstock](http://www.shutterstock.com/).*** ## Navigation - [Rodenhiser Home Services](https://bc.rodenhiser.com/) - [Rodenhiser Plumbing Services](https://bc.rodenhiser.com/plumber-framingham.html) - [Rodenhiser Heating Services](https://bc.rodenhiser.com/furnace-framingham.html) - [Rodenhiser Cooling Services](https://bc.rodenhiser.com/air-conditioning-framingham.html) - [Rodenhiser Electrical Services](https://bc.rodenhiser.com/framingham-electricians.html) - [Rodenhiser Home Services: Book Online](https://bc.rodenhiser.com/call-rodenhiser/book-online.html) - [Rodenhiser Remodeling Services](https://bc.rodenhiser.com/remodels/bathroom-remodeling-framingham.html) - [Rodenhiser Home Services: Reviews](https://bc.rodenhiser.com/rodenhiser-heating.html) ## Company information - Rodenhiser Home Services - [https://bc.rodenhiser.com](https://bc.rodenhiser.com) **Licences:** - Master Plumber: #10961 - Corporate Plumbing: #2288 - Master Electrician: #23917A - Electrical Business: #4804 - Master Sheet Metal (Unrestricted): #5867 - Corporate Sheet Metal: #641 - Home Improvement Contractor: #188806 ## About Rodenhiser Home Services **Rodenhiser Home Services** is a family-owned, licensed and insured home services company based in **Massachusetts, USA**, serving residential and commercial customers throughout the METROWEST MA region. Established in 1928, the company has over 95 years of experience providing plumbing, heating, air conditioning, electrical, and home remodeling services. Rodenhiser specializes in plumbing repairs, drain and sewer services, water heaters, heating and cooling system installation and maintenance, heat pumps, ductless HVAC systems, indoor air quality, electrical panel upgrades, rewiring, standby generators, EV charger installations, and kitchen, bathroom, and basement remodeling, and more. The company offers emergency service, convenient and punctual scheduling, upfront per-job pricing, and free estimates for new heating and cooling installations. All work is backed by written warranties and a satisfaction guarantee. Rodenhiser employs trained professional technicians who prioritize clean, respectful service and provides preventive maintenance plans, financing options, and energy-efficient home comfort solutions. Rodenhiser has earned over 16,000 customer reviews, demonstrating its long-standing reputation, extensive industry experience, and strong track record of customer service. **Nice People…Great Service** ## Page information - [Canonical URL: https://bc.rodenhiser.com/rodenhiser-blog/attic-sealing-making-your-way-beyond-air-leaks.html](https://bc.rodenhiser.com/rodenhiser-blog/attic-sealing-making-your-way-beyond-air-leaks.html)