What an energy audit actually is, what happens when we put a blower-door on your house, what it costs, and how the numbers turn into a plan that lowers your power bill. Written by a RESNET® Florida Class 1 Energy Rater who does the testing — and the work that follows.
A home energy audit is a measured inspection of how your house uses and wastes energy. Instead of guessing, an energy rater uses instruments — a blower-door test, a duct-leakage test, and often an infrared camera — to find exactly where your conditioned air is escaping and your cooling dollars are leaking out. In the Florida heat, cooling is the biggest line on the power bill, so knowing where the house leaks is the difference between spending money on the right fixes and spending it on the wrong ones.
The audit ends with something useful: a prioritized plan — the improvements that save the most, first. At Bell Engineering & Construction the same certified team that measures your home can also do the work, so nothing gets lost between the diagnosis and the fix. Call (561) 779-3213 to book one, or read on to know exactly what to expect.
The blower-door is the instrument that makes an audit an audit. A powerful, calibrated fan is sealed into an exterior doorway and pulls air out of the house, dropping the indoor pressure. Air then rushes in through every crack, gap, and bypass — around recessed lights, top plates, plumbing penetrations, attic hatches, and window and door frames — and the fan measures exactly how much air it takes to hold that pressure. That single number tells us how leaky the whole house is.
Under the Florida Building Code, air-tightness testing on qualifying homes must be performed by a certified third-party energy rater — not just anyone with a fan. Randolph Scott Bell is a RESNET® Florida Class 1 Energy Rater, so your test is done to standard and documented properly. Just as important, the fan doesn't only give a score — while it runs, we can walk the house and literally feel the leaks, which is how we know precisely where to seal.
Pricing depends on the size of the home and how deep the diagnostics go. As a general industry guide, a standalone blower-door test commonly runs in the low hundreds of dollars, while a full diagnostic audit that adds duct-leakage testing and infrared imaging typically lands in the several-hundred-dollar range. Those are national ballpark figures, not a quote — your number depends on your house.
The better way to think about it: the audit almost always pays for itself. It stops you from spending thousands on the wrong upgrade and points every dollar at the fixes that actually lower your bill. And because Florida periodically runs storm-hardening and efficiency programs that can include free or subsidized inspections, it's worth asking what's active right now. Call (561) 779-3213 and we'll tell you exactly what your assessment costs and whether a current program applies.
A report you can't act on is just paper. Because Bell Engineering & Construction is a licensed General Contractor (CGC1528750) as well as a certified energy rater, the findings turn straight into work — in the order that pays off:
Want the whole-home picture? Start with the Energy-Efficient Home Improvement hub ↗, and if impact windows are on your list, see how they can also lower your insurance in our Impact Window Insurance Discount Guide ↗.
A home energy audit is a measured inspection of how your house uses and loses energy. An energy rater uses instruments — a blower-door test, a duct-leakage test, and often an infrared camera — to find exactly where conditioned air escapes and where you're wasting cooling dollars, then delivers a prioritized plan of fixes ranked by payback. In Palm Beach County, where cooling dominates the power bill, it's the most reliable way to spend improvement money on the right things.
A blower-door test seals a calibrated fan into an exterior doorway and depressurizes the house so air is pulled in through every crack and gap. The fan measures how much air that takes, giving an objective number for how leaky the whole house is — and while it runs, we can walk the home and pinpoint the actual leaks to seal. It's the single most useful measurement in an energy audit because it's repeatable and comparable before and after the work.
Yes. Under the Florida Building Code, required air-tightness testing must be performed by a certified third-party energy rater. Randolph Scott Bell is a RESNET® Florida Class 1 Energy Rater, so the assessment is done to standard and documented properly — and because the same team is a licensed General Contractor, your audit and your repairs come from one accountable source.
It depends on the size of the home and how deep the diagnostics go. As a general industry guide, a standalone blower-door test commonly runs in the low hundreds of dollars, while a full diagnostic audit adding duct testing and infrared imaging typically lands in the several-hundred-dollar range — national ballpark figures, not a quote. Florida also periodically offers programs that can include free or subsidized inspections, so ask what's active now. Call (561) 779-3213 for your exact price.
A whole-home assessment usually takes a couple of hours from start to finish — a walk-through and bill review, setting up and running the blower-door and duct tests, and then discussing the findings. The blower-door measurement itself is quick; most of the time goes into the walk-through and interpreting what the numbers mean for your specific home.
Because in South Florida the ducts usually run through a hot attic, and it's common to find systems losing 20–30% of their cooled air into that attic through leaky joints — air you paid to cool that never reaches a room. A duct-leakage test measures that loss directly. Sealing the ducts is frequently the single highest-return fix we uncover in an audit.
Most plans start with air sealing and duct sealing — the cheapest fixes with the fastest payback — followed by bringing attic insulation up to spec, then upgrading to insulated impact windows and doors, and finally solar once demand is reduced. The exact order depends on what your home's numbers show, which is the whole point of measuring first instead of guessing.
A DIY walk-through can catch obvious drafts and an old thermostat, but it can't measure total air leakage or duct loss — the two things that drive most Florida cooling bills. Those require a calibrated blower-door and duct test and a trained rater to interpret them. For a whole-home plan you can trust your money to, a professional audit is worth it; a DIY look is a fine starting point but not a substitute.
That's exactly what it's for. In Palm Beach County the air conditioner is the biggest energy user, and it runs longest when the house leaks and the ducts lose air. By measuring those losses and fixing the highest-impact ones first — sealing, insulation, then glazing — an audit targets the improvements most likely to bring the cooling bill down, rather than upgrades that look good but move the needle little.
Yes. Based in Loxahatchee at 16140 Okeechobee Blvd, we perform energy audits across all of Palm Beach County — West Palm Beach, Loxahatchee, The Acreage, Wellington, Royal Palm Beach, Jupiter, Palm Beach Gardens, Boynton Beach, and the surrounding communities. Call (561) 779-3213 to schedule.