Getting a Home Battery Backup Quote in Houston: What to Expect and What Is In It

A home battery backup quote in Houston is a short, itemized number, not a mystery. It lists the battery modules, the smart controller, the smart panel, the installation labor, and the permit, and it starts with a free site survey of your home. When the quote is fixed-price, the number you see already includes installation, so there are no surprise labor charges at the end. This guide walks through exactly what is in the quote, what the survey checks, and the few things that can move the final figure.

Key Takeaways

• An Eos quote itemizes battery modules, the smart controller, the smart panel, estimated installation, and the permit, with a 10-year warranty on the battery and controller.
• The quote starts with a free site survey that checks your electrical panel, mounting location, and which circuits you want backed up.
• Installed storage in Texas averages about $993 per kWh in 2026, so a quote scales with system size, from about $9,926 for 10 kWh to $25,807 for 26 kWh (EnergySage, as of July 5, 2026).
• The most common line item that changes a quote is a service-panel upgrade to 200 amps, which runs about $1,300 to $3,000 (This Old House, 2026).
• A City of Houston residential electrical permit is a small fixed fee, roughly $128, with review typically running about 5 to 10 business days for a simple job.

What is included in a home battery backup quote in Houston?

A home battery quote in Houston itemizes five things: the battery modules that store your energy, the smart controller that runs the system, the smart panel that manages which circuits stay on, the installation labor, and the permit. Each Eos battery module holds 9 kWh, and the smart controller delivers 11.5 kW continuously with a 17.1 kW surge for starting an air conditioner. The quote also carries a 10-year warranty on the battery and controller. Because pricing already includes estimated installation, the quote reads as one number per plan rather than a parts list you have to assemble yourself. To see how the tiers and their starting prices line up, compare them on the

.

What does the free site survey check?

The free site survey is where a technician confirms the quote fits your home, and it checks four things. First, your electrical panel and main breaker amperage, since the system ties into your panel and older 100-amp panels sometimes need an upgrade. Second, the mounting location and clearances, usually a garage wall, to confirm space for the battery stack.

Third, your internet connection, which the system uses for remote monitoring. Fourth, which circuits you want protected, so the smart panel can be programmed to prioritize your fridge, medical devices, Wi-Fi, and any rooms you want kept cool. The survey is what turns a ballpark into a firm, fixed-price number for your specific address.

How does fixed-price quoting work?

Fixed-price quoting means the number in your quote is the number you pay, installation included, barring a change you approve in writing. This matters because open-ended estimates can drift upward once labor and materials are tallied at the end. With a fixed-price quote, the site survey does the discovery up front, so the installer absorbs the normal complexity of a standard install rather than passing it to you later. If the survey uncovers something that genuinely changes scope, like a needed panel upgrade, that appears as a clear, separate line you approve before work begins.

What can change your final quote number?

Most quotes land where the survey sets them, but a few site conditions can move the number. The most common is a service-panel upgrade. If your home still runs a 100-amp panel, upgrading to 200 amps to accept the backup interconnection typically costs about $1,300 to $3,000 (This Old House, 2026). Other adjustments include running a sub-panel or trenching for a detached structure, extra mounting work for a difficult wall, and, of course, the system tier you choose. The permit itself is a small fixed fee, roughly $128 for a City of Houston residential electrical permit (City of Houston fee schedule, 2026).

Because most of the quote is the equipment and install, the total scales cleanly with system size. Here is what installed storage runs in Texas by capacity in 2026.

For the monthly-payment view of these same systems, see our

.

How long is your quote valid, and what happens next?

A quote is generally valid for a set window, commonly around 30 days, because equipment and material pricing can move. Once you accept, the next steps are the permit and scheduling. A City of Houston residential electrical permit review typically runs about 5 to 10 business days for a simple job, longer if a panel upgrade or plan review is involved (City of Houston Permitting Center). From accepted quote to a powered-on system usually spans a few weeks. We map the full schedule in the

. If you are weighing whether to quote directly or through a comparison site first, the trade-offs are covered in our guide on .

Prefer to talk first? Call Eos at 713-207-2222 for a same-week Houston site survey.

Frequently asked questions

Is a home battery quote free?

Yes. The quote and the site survey that produces it are free. You get an itemized, fixed-price number for your address with no obligation to move forward.

Do I need to be home for the site survey?

It helps. Being present lets you point out which circuits matter most to you, from medical devices to a home office, so the smart panel is programmed around your priorities. It also lets the technician confirm the mounting location with you.

Does the quote include the Houston permit?

Yes. The permit is one of the standard line items in the quote. A City of Houston residential electrical permit is a small fixed fee, roughly $128, and the installer handles the filing.

Will my quote change after the survey?

Usually not. Fixed-price quoting means the survey does the discovery up front. A change only appears if the survey finds something that alters scope, like a needed 200-amp panel upgrade, and any such item is shown as a clear line you approve before work starts.

How much does the system itself cost per size?

Installed storage in Texas averages about $993 per kWh in 2026, so a 10 kWh system runs about $9,926 and a 26 kWh system about $25,807 (EnergySage, 2026). Your Eos quote maps a specific plan and tier to your home.

This article explains what to expect in a home battery backup quote in Houston and reflects Eos process and pricing as of July 2026. Final pricing depends on your site and the plan you choose.