What should be included in an EV charger installation quote?
Ten things: the permit and who pulls it, whether a load calculation was performed or assumed, which charger and who supplies it, the conductor size and the run length, the breaker and any panel work, the mounting and location, what gets restored afterwards, the written exclusions, the split between the installer's workmanship warranty and the manufacturer's hardware warranty, and what happens to the price if the panel turns out to be full. A quote missing any of them is not cheaper than one that has them; it is less finished. And it should contain no federal tax credit line, because there is no federal credit to claim.
Updated 2026-08-20
The ten lines, and what a thin quote says instead
Most of the gap between the cheap quote and the expensive one for the same garage lives in this table rather than in anybody's hourly rate.
Why two quotes for the same garage differ by a thousand dollars
Before concluding that one contractor is expensive, put the two documents side by side line for line. The gap almost always resolves into scope that one included and the other left out.
The question to put to the cheaper contractor
Frequently the two quotes converge, and you have learned that the cheap one was never cheap. Occasionally it does not converge, and you have found a genuine difference in rate — which is the thing you actually wanted to know.Either way you now have a comparison rather than two numbers, and you have given the cheaper contractor a fair chance to explain themselves rather than assuming the worst.
Permit included or excluded is a bigger line than it looks
What the permit buys is the inspection, and the inspection is the only independent check that a 240-volt circuit carrying full current for hours a night was built correctly. Unpermitted work also has a habit of surfacing at the worst possible moments — in a disclosure at resale, or in an insurance claim after a fire in a wall nobody can see.The second reason to insist the contractor pulls it: a permit issued in the homeowner's name puts the code-compliance responsibility on the homeowner. That is a bad trade for a discount, and it is occasionally offered as one. Get the answer written on the quote in the form "electrical permit pulled by the contractor, fee included".
Load calculation performed, or assumed
A load calculation is arithmetic on your actual service and your actual appliances against a standard method. Eyeballing the panel is not a load calculation and cannot substitute for one.The failure mode is specific and common. A quote is written assuming the panel has capacity, the crew arrives, the panel turns out to be full or the service already committed, and the job becomes a service upgrade — commonly $1,500 to $3,000 for the electrical work alone, before anything the utility charges for a service drop or a meter base. Nobody in that room is happy.There is usually a cheaper answer than the upgrade, and a quote that has done the calculation will have considered it: a load-management device that sheds the charger when the house draws hard, or simply a lower-amperage charger. A 32-amp charger adds roughly 230 miles in a ten-hour night, which covers essentially every domestic use. Insisting on maximum current is what forces upgrades many households do not need.
The federal tax credit line is now always an error
Section 30C terminated for property placed in service after June 30, 2026 under Public Law 119-21, and there is no federal replacement.Treat it as a currency test rather than as a sin. Most content and most quoting templates on this subject were written when the credit ran to 2032, and a contractor whose proposal still nets it out has simply not revisited the boilerplate. Point at the line, ask for a corrected total, and note how they respond — a contractor who checks and fixes it is fine, and one who insists it still applies has told you how current they are on everything else.What is left is the state layer and the utility layer, and in some places those are worth real money. They are specific to your utility and carry funding statuses and deadlines, so a quote naming a program by name with a link to the sponsor's page is doing it properly, and one showing "available rebates: up to $1,000" with no sponsor named is decoration.
Questions to ask before you sign
An installer who answers these easily is one who has done the job before.
Red flags
The pattern is worth walking away from, and walking away costs you nothing but a day.
How many quotes should I get?
Two, compared line by line, tells you more than three skimmed. The value is in the comparison method rather than the count: once you can see which lines each has included, a third quote mostly confirms what the first two already told you.
Should the quote include the permit fee?
Yes, and it should say who pulls it. A permit in the contractor's name keeps the code responsibility with the contractor, which is where it belongs. The fee itself runs roughly $50 to $800 depending on the jurisdiction and is a local fact rather than a national one.
Is a fixed price better than a range?
A fixed price is better if the load calculation was performed and the run was measured, because then it is a real commitment. A fixed price offered without either is not a commitment, it is a starting point with a change order behind it. A quoted range with the assumptions written down is more honest than a firm number built on a guess.
What is a reasonable deposit?
It varies, and it is partly a legal question — several states cap the deposit a contractor may take on residential work, so check whether yours does. Beyond that, a deposit covering ordered materials is ordinary and a deposit approaching the full price before any work is not.
Why is one quote so much cheaper than the other?
Almost always because it is quoting less work. Check the permit, the load calculation, the run length, whose charger it is and the restoration, in that order. Those five lines account for most gaps. If all five match and the price still differs, you have found a genuine difference in rate.
Should the installer's quote show a tax credit?
Not a federal one, because there is none to show for property placed in service after June 30, 2026. A quote naming a specific state or utility program with the sponsor and a link is doing it correctly. A generic "up to" rebate with no sponsor named is decoration.
- Qmerit — Understanding your EV home charging station costs for installation, for the residential installed range and its components
- HomeAdvisor — Cost to install an electric vehicle charging station, for the installed range, permit fee spread and panel-upgrade adders
- IRS — Alternative Fuel Vehicle Refueling Property Credit, for the Section 30C termination date
- US DOE Alternative Fuels Data Center — Alternative Fuel Infrastructure Tax Credit (Law 10513), corroborating the termination
- NFPA 70, National Electrical Code — Article 625 and the dwelling load-calculation rules a load calculation is performed against. Adoption of any edition is by jurisdiction.
Have a number in your head before the first quote arrives
The quickest way to spot a quote that is quoting less work is to already know what the job should run. Tell us the panel, the run distance and where the car parks and you get an installed-price range.