Question 1

How much does a home energy audit cost on Long Island?

Accepted Answer

If you hire us for the insulation or air sealing project, the audit cost is absorbed into the project — effectively free. If you don't hire us after the audit, we charge a standalone audit fee (typically $250–$400 depending on home size) and you take the full written report to any contractor. NYSERDA's programs also fund free audits through approved contractors for income-qualified households on Long Island.

Question 2

What does a BPI energy audit include?

Accepted Answer

A BPI Building Analyst audit includes four core diagnostics: a blower door test (pressurize the house to 50 Pascals and measure air leakage in CFM50), a thermal imaging scan with a FLIR camera during the blower door test (shows exactly where cold air is entering), a combustion safety check (backdraft testing on all gas appliances under worst-case depressurization), and a full insulation inventory with measurements of existing R-values in every accessible assembly. Carlos also walks the attic, basement, and all accessible crawl spaces and notes conditions like ice dams, moisture staining, pest evidence, and blocked soffit vents that typically don't appear in a sales walk-through.

Question 3

Do PSEG and LIPA require an energy audit for insulation rebates?

Accepted Answer

Yes. Both PSEG Long Island and LIPA require a BPI-certified energy audit as the required first step for NYSERDA Comfort Home rebate eligibility. The audit establishes the baseline R-values and air leakage numbers that rebate amounts are calculated from. We are BPI-certified in-house — Carlos does every audit and submits all rebate paperwork directly to NYSERDA after project completion. Rebate turnaround is typically 8–12 weeks.

Question 4

What is a blower door test and why does it matter on Long Island?

Accepted Answer

A blower door test uses a calibrated fan mounted in an exterior door opening to pressurize your house to 50 Pascals and measure how much air leaks through the building envelope. The result — expressed in CFM50 (cubic feet per minute at 50 Pascals) — tells us exactly how leaky your house is relative to its size. On Long Island, where northeast winters routinely push cold air through uninsulated wall cavities and attic bypasses, a blower door test is the only reliable way to know what you're actually dealing with. Most pre-1975 Long Island homes measure 3,000–6,000 CFM50; after a full air sealing and insulation project, we typically reduce that by 40–60%.

Question 5

How long does a home energy audit take?

Accepted Answer

A full BPI audit on a typical Long Island home (1,500–2,500 sqft) takes 2–3 hours. Larger homes or homes with complex attic geometry (multiple valleys, dormers, pull-down stairs) take up to 4 hours. Carlos schedules audits in the morning and typically delivers a written report with thermal images and prioritized recommendations within 3–5 business days.

BPI Home Energy Audit on Long Island

Free Home Energy Audit Estimate

What a BPI Audit Actually Includes

Why Carlos Does Every Audit Personally

What You Get at the End

Energy Audits on Long Island: NYSERDA, PSEG, and Climate Zone 4A

Home Energy Audit, asked and answered.

How much does a home energy audit cost on Long Island?

What does a BPI energy audit include?

Do PSEG and LIPA require an energy audit for insulation rebates?

What is a blower door test and why does it matter on Long Island?

How long does a home energy audit take?

Other services we run

Attic Insulation

Spray Foam Insulation

Blown-In Insulation

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