What Is a Home Energy Audit?

A home energy audit is a systematic evaluation of a property's energy consumption patterns, efficiency levels, and overall energy performance. Certified professionals, often called energy auditors or raters, use specialized equipment such as blower doors, infrared cameras, and combustion analyzers to measure air leakage, insulation gaps, duct integrity, and appliance efficiency. The audit results in a detailed report that ranks recommended improvements by cost-effectiveness and potential energy savings. While many homeowners initially pursue audits to lower utility bills, an often-overlooked benefit is the positive impact on homeowners insurance premiums.

How Home Energy Audits Affect Insurance Premiums

Insurance companies base premiums on risk. Homes that are better maintained, have updated systems, and incorporate safety features are statistically less likely to file claims. A home energy audit identifies weaknesses that could lead to claims: faulty wiring, aging HVAC equipment, poor insulation that allows ice dams, inadequate ventilation causing mold, or old windows that shatter in storms. By addressing these issues, homeowners reduce the likelihood of costly claims, which insurers reward with premium discounts.

Direct Discounts for Energy-Efficient Homes

Several major insurers, including Nationwide, Travelers, and Liberty Mutual, offer specific discounts for homes with energy-efficient upgrades or recent energy audits. These discounts typically range from 5% to 15% off the annual premium, depending on the insurer and the scope of improvements. For example, replacing an old roof with energy-efficient shingles or installing impact-resistant windows can qualify for separate credits. In some states, insurers are required to offer discounts for homes that meet specific energy efficiency standards, like Energy Star certification or a HERS (Home Energy Rating System) score below a certain threshold.

The Risk Reduction Connection

Beyond direct efficiency discounts, energy audits often uncover safety hazards that directly correlate with insurance risk:

  • Electrical hazards: Outdated or overloaded panels, knob-and-tube wiring, and frayed insulation are common audit findings. Upgrading these eliminates a leading cause of house fires, reducing liability for both homeowner and insurer.
  • Plumbing and moisture problems: Infrared cameras detect hidden leaks in pipes or behind walls. Fixing these prevents water damage, mold claims, and structural rot—significant sources of homeowner claims.
  • HVAC safety: Furnaces and boilers are inspected for carbon monoxide leakage, improper venting, and filter clogs. Proper maintenance cuts the risk of fire, CO poisoning, and system failure that could lead to frozen pipes in winter.

Types of Home Energy Audits

Not all energy audits are identical. Understanding the different levels helps homeowners choose the right approach for both energy savings and insurance discounts.

Do-It-Yourself (DIY) Audits

A DIY audit involves using a checklist to inspect obvious air leaks, insulation levels, and appliance ages. While free, it lacks the precision needed to meet insurance company requirements for documented improvements. Insurers typically require a professional audit report to qualify for discounts. However, a DIY audit can be a useful first step to identify low-cost fixes before scheduling a professional exam.

Basic Professional Energy Audit

Often costing between $200 and $500, a basic professional audit includes a walk-through, manual measurement, and basic blower door test to estimate air leakage. The auditor will provide a list of improvements with estimated savings. Some insurers accept this level of documentation if the improvements are completed and verified by a licensed contractor.

Comprehensive Energy Audit (HERS Rating)

A HERS rating is the gold standard in home energy evaluation. Conducted by a RESNET-certified rater, it produces a numerical score (lower is better) based on a complete analysis of the building envelope, HVAC system, water heating, lighting, and appliances. Many insurance companies offer the highest discounts for homes with a HERS score of 50 or below (indicating an energy-efficient home). A full HERS audit can cost $500–$1,200 but often pays for itself within one to three years through combined utility and insurance savings.

Step-by-Step Guide to Securing an Insurance Discount

Follow this process to maximize your chances of receiving a premium discount after an energy audit:

  1. Check with your insurer first: Before scheduling an audit, ask your insurance agent whether your company offers discounts for energy audits, energy-efficient upgrades, or specific certifications like Energy Star or HERS. Some insurers require the audit to be performed by a specific contractor or within a certain timeframe.
  2. Schedule a certified energy audit: Look for auditors certified by the Building Performance Institute (BPI), RESNET, or the Home Energy Rating System (HERS) program in your area. You can find directories on the RESNET website or through local utility company programs that may offer rebates for audits.
  3. Complete the recommended upgrades: Focus on improvements that offer both energy savings and risk reduction. Prioritize sealing air leaks, adding insulation, replacing old windows, upgrading HVAC systems, and fixing electrical hazards. Keep all receipts, contractor invoices, and permits.
  4. Obtain a post-improvement verification: Some insurers require a follow-up inspection or a second blower door test to confirm the work was done. A few insurance companies will accept a signed contractor checklist.
  5. Submit documentation to your insurer: Provide the original audit report, receipts, and any certification letter. Some insurers have a dedicated form for energy-efficiency discounts. Ensure you ask for a written confirmation of the new premium rate.
  6. Review your policy annually: Insurance discounts for energy improvements may expire after a few years or if you make changes to the home. Re‐submit any new certifications or improvements to maintain the discount.

Quantifying the Financial Benefits

The combined savings from reduced energy bills and lower insurance premiums can be substantial. According to a study by the U.S. Department of Energy, a typical home that undergoes an energy audit and implements major upgrades (air sealing, insulation, upgraded HVAC) saves an average of 20–30% on annual utility costs. For a household spending $2,500 per year on energy, that’s $500–$750 saved annually. On the insurance side, a 10% premium discount on a $1,200 annual policy saves $120 per year. Together, the savings can completely offset the cost of the audit within the first year alone.

For example, a homeowner in Minneapolis spent $600 on a comprehensive audit and $4,500 on attic insulation, duct sealing, and a programmable thermostat. Their utility bills dropped from $3,200 to $2,400 per year—a saving of $800. Their insurer, which had a “Green Home” discount program, reduced their annual premium from $1,500 to $1,275, a $225 saving. Total first-year savings: $1,025. The audit and upgrades paid for themselves in about five years, and the home retained higher resale value.

Case Study: Florida Homeowner Insured After Energy Audit

In hurricane-prone regions, insurers are especially keen on risk mitigation. A homeowner in Tampa with an older 1990s house scheduled a HERS audit. The audit revealed poor roof-to-wall connections, inadequate sealing around windows, and an inefficient AC unit that cycled excessively, risking electrical overload. After reinforcing roof trusses, installing impact-resistant windows, and upgrading the HVAC, the homeowner’s insurance premium dropped 18%. Additionally, the home qualified for a $500 rebate from the utility company. The combined annual savings: $870.

Insurance Companies That Offer Energy Efficiency Discounts

While policies vary by state, several national carriers explicitly promote energy-efficiency discounts:

  • State Farm: Offers a “Home Energy” discount in many states for homes with Energy Star certification or a HERS score of 50 or lower. Discount size depends on location.
  • Allstate: Has a “Green Home” program that can provide up to 10% off for LEED- or Energy Star-certified homes, and up to 5% for recent energy audits with completed improvements.
  • Farmers Insurance: Offers “Green Home” coverage as an endorsement, which includes premium discounts for energy-efficient upgrades. A separate “Home Energy Audit” discount is available in some states.
  • USAA: Provides a “Home Efficiency” credit for members who complete a professional energy audit and make improvements costing at least $1,000.
  • Liberty Mutual: Under their “Better Home” package, they offer premium savings for homes with certified energy efficiency features, including audits.

Always verify directly with your agent, as not all discounts are advertised or available in every region.

Additional Benefits Beyond Insurance Discounts

Beyond premium savings, a home energy audit unlocks other advantages:

  • Improved indoor comfort: Eliminating drafts and cold spots creates a more comfortable living environment year-round.
  • Healthier indoor air: Sealing leaks prevents outdoor allergens and moisture from entering, while proper ventilation reduces mold and radon risks.
  • Increased property value: A HERS rating can be shared with potential buyers. Homes with verified energy efficiency typically sell for 3–5% more than comparable non‐certified homes.
  • Environmental footprint reduction: Lower energy consumption directly reduces greenhouse gas emissions. Many utility companies offer rebates for energy upgrades, further offsetting costs.

Common Misconceptions About Home Energy Audits and Insurance

Several misunderstandings prevent homeowners from pursuing audits:

  • “Energy audits are only for old homes.” New homes can also waste energy through construction defects, poor seals, or underperforming windows. An audit can optimize even a recently built home.
  • “Only expensive upgrades qualify for discounts.” Many insurers offer a small discount just for completing the audit, regardless of upgrades. Simple tasks like caulking windows and sealing ducts can qualify if documented.
  • “The discount won’t be worth the cost of the audit.” As shown above, the utility savings alone often exceed the audit cost. Plus, some utility companies provide free or low-cost audits.
  • “I have to use a specific contractor.” While some insurers have preferred providers, most will accept audits from any BPI- or RESNET-certified professional.

How to Find a Certified Energy Auditor

Start with these resources to locate a qualified auditor near you:

  • The RESNET website has a searchable directory of certified HERS raters.
  • The Building Performance Institute (BPI) offers a similar search tool for BPI-certified professionals.
  • Your local utility company may have a list of approved auditors, and many offer program discounts.
  • Check with your state energy office for any energy audit incentive programs.

When contacting an auditor, ask about their experience with insurance documentation. A good auditor will know how to format a report that insurers accept and can provide a certificate of completion for improvements.

Preparing for the Audit

To get the most value from the audit and to ensure the report meets insurance needs, prepare your home beforehand:

  • Gather recent energy bills for the past 12 months.
  • Make a list of problem areas: drafts, rooms that are too hot or cold, high humidity areas, and any visible water stains.
  • Ensure the auditor has access to all parts of the home: attic, crawlspace, basement, garage, and every room.
  • If you have recent renovations or system upgrades, provide those documents to the auditor.

What Happens After the Audit

Once the audit is complete, you’ll receive a report that typically includes:

  • An overall efficiency rating (often a HERS score).
  • A prioritized list of recommended improvements with cost estimates and annual savings projections.
  • Photos and thermal images showing problem areas.
  • A checklist of immediate health and safety issues (e.g., gas leaks, CO risks).

Review the report with your insurance agent. Some insurers will give a conditional discount based on the recommendations alone, with full discount available once work is verified. Plan your upgrade schedule based on both energy savings and insurance discount eligibility. You may want to tackle high‐impact, low‐cost items first—like air sealing and attic insulation—which typically have the best return on investment.

Long-Term Considerations

Energy audits are not a one‐time event. Homes age, occupants change, and systems degrade. To maintain insurance discounts, consider a follow‐up audit every three to five years, or immediately after major renovations. Some insurers require proof of ongoing maintenance. Additionally, keep records of all upgrades for future resale—buyers increasingly value energy‐efficient homes with documented audit history.

Finally, note that insurance discount eligibility may change with market conditions. Periodically ask your agent if new discount programs are available. The growing emphasis on climate resilience and energy efficiency means more insurers are likely to offer incentives in the coming years.

Conclusion

Home energy audits are a powerful tool for reducing utility costs, improving safety, and—importantly—lowering homeowners insurance premiums. By identifying and correcting energy waste and hidden hazards, homeowners not only save hundreds of dollars annually but also make their properties more resilient and attractive. The process is straightforward: choose a certified auditor, implement targeted upgrades, document the work, and submit it to your insurer. With typical savings of 5–15% on insurance and 20–30% on energy bills, the investment in an audit often pays for itself within months. For any homeowner looking to cut expenses and protect their home, scheduling an energy audit should be a top priority.