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Question DetailsAsked on 9/19/2013

how much should a home energy audit cost

I need a scientific energy audit with a blower door, duct-blaster, combustion testing on all gas appliances, vent and fan testing, insulation, air-sealing, attic and crawl space, with a full report for state rebates and incentives on any energy remodeling work to be done. How much should I be willing to pay? I would also like infrared camera pictures of wall insulation, doors and windows, and survey of major appliances, and measurements of energy usage from all my plug-load appliances, lights, and water.

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Generally costs $300-700 for an energy audit - because you want combustion testing and duct testing as well as insulation and blower door tightness testing, recording thermal IR camera run, and electrical/gas demand testing you are going to be right over the high end - more like a commercial building energy upgrade audit, which runs $1500-2000, and will take 2-4 man-days. This is really overkill for a residence, but if your state rebates a large portion of the cost or you area into doing a $20,000 upgrade to your energy efficiency, then so be it.

On the electricall demand side, unless required for rebates, I would just look at the nameplate rating on bulbs (wattage) and appliances for the energy they pull, then compute yearly usage for each. Ditto for water heater and furnace gas or electric demand, or you can just shut off other gas uses and measure furnace gas use on the meter over a couple of hours, then use data from your utility on your actual demand and on heating degree-days versus heater gas usage to figure approximate annual demand.

Make sure you are using a tester certified by the state agency offering the rebates - many states only certify a few contractors to do testing to make any improvements eligible for their rebate programs.

Answered 7 years ago by LCD

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