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*The Angi rating for Energy Efficiency Auditing companies in Bath, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

*The HomeAdvisor rating for Energy Efficiency Auditing companies in Bath, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.

Last update on June 11, 2026

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Building Alternatives Inc
New to Angi
Energy Audit - For BusinessHome Energy Audit

Serving Bath, NH and surrounding areas

In business since 1986

Free estimates

We are independent; we work for you the home owner. Many of our competitors work for suppliers and may only offer you one solution, because that is what they sell. They also may not have the breadth of knowledge (we have 30+ years) to offer you all the options you need to make a decision. We are NOT owned by a trade or supplier, thus we will provide you all the options you need to effectively make your home more energy efficient \nWe have considerable experience in building energy efficient homes and in using the different technologies, modular, timberframe. SIPS, ICF and 2x6 panelized to build a home. This experience makes it easy to identify problem that are caused by the specific construction. Without this experience opportunities will be missed. We will recommend renewable energy options for your new or remolded green home.\n\nBBB - Member in Excellent standing from 1988 to present \nManchester Chamber of Commerce - Member in Ecellent standing from 1987 to present \n

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Energy Efficiency Auditing questions, answered by experts

They’ll use more electricity than the average upright vacuum, but not remarkably more. Most power units plug into a standard 120-volt outlet and don’t have significant power demands. You shouldn’t notice an increase in electricity bills. If you have any specific questions about energy costs, ask your installer as you examine purchase decisions. Larger power units will need more electricity for their suction levels.

STC (Sound Transmission Class) is a rating that describes how well a building material or assembly blocks airborne sound. A higher STC rating means less noise will pass through the material, providing better sound reduction. This rating system applies to various building components, including windows, doors, flooring, drywall, and insulation.

For context, a typical single-pane window has an STC rating of around 25 (where normal conversations are audible), while a well-sealed, double-pane window can exceed STC 45 (blocking loud speech and most music). It is important to note that for some products, like soundproofing drywall, the STC rating refers to the entire wall system, not just the individual panel.

Additionally, STC ratings are most effective for measuring sound reduction at mid-to-high frequencies, such as human speech, and may not accurately reflect how well a material blocks low-frequency sounds like bass music or thunder. Because of these factors, it is recommended to consult a professional to determine the right STC-rated materials for your specific soundproofing needs.

Some types of electric fireplaces use more electricity than others. Models that produce 1,500 watts will have more of an effect on your heating bill than 750-watt models. 

Electric fireplaces use an average of $1.85 of electricity every eight hours. These minimal operational costs aren’t likely to make a big difference in your electric bill—unless you’re using it as a primary heating source for your home and it’s running most of the time.

Wood windows fall in the middle of the window frame materials when it comes to energy efficiency. They’re more insulating than aluminum and vinyl, but they aren’t as efficient as fiberglass or composite frames. If you love the look and lifespan of wood windows and want to maximize efficiency, you can upgrade to double-pane or triple-pane glass and consider window tinting and low-emissivity (low-E) coatings to minimize heat transfer.

Heat pumps transfer existing heat instead of generating it, using less energy. Compared to baseboard heaters, they can reduce heating costs by up to 50% and provide efficient cooling, lowering electricity bills and carbon footprint.

The Bath, NH homeowners’ guide to energy efficiency auditing services

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