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Before and After Pictures from Cabin John
Before and After Air Seal and Insulate the Rim Joist in Cabin John, MD.

Before and After Air Seal and Insulate the Rim Joist in Cabin John, MD.

Before After
Before and After Air Seal and Insulate the Rim Joist in Cabin John, MD. Before and After Air Seal and Insulate the Rim Joist in Cabin John, MD.

What you see here is the bottom of a 6' sliding glass door. A big local company installed it but cut out the floor to do so. They actually caused a huge problem where there was none before! It's what can happen when building science is not used correctly. The solution was to air seal and insulate the rim joist eliminating the huge gaps the sliding glass door left in the envelope.

Dr. Energy Saver Central Maryland serving Cabin John, MD 20818

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Dr. Energy Saver Central Maryland is an authorized franchisee of the nationally renowned Dr. Energy Saver network of the best energy-conservation contractors across the country. We are not just a contractor company, we specialize in helping you understand your home's current energy efficiency, suggest repairs, and we also do the work! You'll receive the maximum energy and cost-saving results with least amount of hassle.

Cabin John, MD Home Energy Savings Expert

We specialize in a variety of services aimed to lessen your home's carbon footprint and save energy and money each month! We offer it all, from air sealing to ductwork to insulation and HVAC services in Cabin John, MD.

At Dr. Energy Saver, we not only test and investigate your home's energy usage, but we will discuss and prioritize the proper repairs. You'll know which ones will save you the most energy and why. This will also help direct you in making the best decision for you and your family.


  • Insulation | Spray Foam Insulation
  • Sealing Air Leaks
  • Radiant Barrier Installation
  • HVAC Systems
  • Ductwork, Air Duct Sealing
  • Home Energy Audits

For a FREE, no-obligation services estimate in Cabin John, MD, you'll also receive a free copy of "Saving Energy and Money at Home," a great book to use as you begin to create a more comfortable, healthy, and energy efficient home!

News & Events From from Cabin John
We find this almost everywhere. A bathroom exhaust vent routed out of the soffit vent... Turns out a soffit is for air intake! Yup the black stuff is mold. Every time we run across this (all the time) we run the vent to the gable and cut a new hole for it. The vent must rise 1/4" per foot and be positively vented to exterior...every time.... [Read more]

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