A typical panel upgrade in the Houston / Galveston Bay area runs $1,183–$1,972 — most 200-amp jobs land in that band.
Outliers go higher when the meter, mast, or service entrance also has to be rebuilt. That's the honest answer up front — no "from $499" bait, no inflated "up to $10,000" scare number.
In the Houston / Galveston Bay area, a typical electrical panel upgrade runs about $1,183–$1,972 — most 200-amp jobs land in that band, with outliers above it when the meter, mast, or service entrance also has to be rebuilt. This guide shows exactly what moves that figure, so you can tell where your home falls before anyone quotes you.
Written by a licensed master electrician — TDLR EC #EECELE00037785, 27+ years in the Galveston Bay / South Houston corridor.
The short answer: typical price range (and where it can go higher)
A panel upgrade in the Houston / Bay area typically costs $1,183–$1,972.
Here's how that breaks down in plain English:
- 100A → 200A "heavy up" (the most common job): usually lands inside the $1,183–$1,972 range. If you're searching 200 amp panel upgrade cost or how much to replace breaker box, this is your band.
- A like-for-like breaker box replacement (swapping an old or dangerous panel for a modern one at the same amperage): often near the lower-to-middle of that range.
- A 400-amp service, or any job that also needs a new mast, meter base, or service entrance rebuilt: runs above that range. We'd rather tell you that here than surprise you with it later.
We publish the range — and the cases that cost more — on purpose. A quote that hides the expensive scenarios isn't cheaper; it's just less honest about what's coming.
What actually drives the cost (6 real factors)
A panel upgrade isn't one fixed product, so "what does it cost?" honestly depends on six things. This is where a Houston-area job earns its number:
Amperage target — 100 vs 200 vs 400 amp
Going from 100A to 200A is the standard heavy up and the most common upgrade. A 200A panel is plenty for most homes adding an EV charger, a bigger AC, or an addition. A full 400-amp service — usually a large home or one with serious added load — is a bigger job and a higher number. (This is the main reason electrical panel replacement cost Texas figures vary so widely online; people are comparing different amperages.)
Panel location and access
A panel on an exterior wall with clear working space is a clean job. An interior panel buried in a closet, or one that has to be relocated (sometimes to bring the home up to current code), means more labor, more wire, and sometimes drywall work — which pushes the cost up.
Service entrance condition
This is the one that surprises homeowners. If the mast, weatherhead, or meter base is corroded, undersized, or no longer to code, it has to be rebuilt as part of the upgrade. When the panel swap also becomes a service-entrance rebuild, you're at the top of the range — or above it.
CenterPoint coordination
A service upgrade means the power gets disconnected and reconnected at the utility side. That's a scheduled CenterPoint disconnect/reconnect, and coordinating it cleanly — so your home isn't dark longer than it needs to be — is part of doing the job right. An electrician who's done this in the Bay corridor handles it as a matter of course.
Permit and inspection
In a done-right job, the City of Houston (or local jurisdiction) permit fee and the required inspection are included — not an extra you find out about later. And here's the part most homeowners don't know: in Houston, electrical permits are issued only to a registered master electrician. You can't legally pull this one yourself. (Source: City of Houston Permitting Center.) So a quote that's cheaper because it skips the permit isn't a deal — it's a red flag.
Existing hazards
If you're replacing a known-dangerous panel — a Federal Pacific (FPE/Stab-Lok) or Zinsco box — or correcting prior unpermitted work someone else left behind, that condition can affect both the scope and the price. (More on those panels — and why insurers flag them — in our guide to dangerous FPE, Zinsco & Stab-Lok panels.)
That's the whole picture. No mystery line items, no surprise after surprise — just the six things a real Houston job actually depends on.
Why the cheapest quote isn't always the cheapest
We'll say it plainly: we're usually not the lowest bid you'll get. We pull the permit, do it to NEC 2023 code, coordinate CenterPoint, and see the inspection through to a pass — and that work is in our number.
Here's why the cheaper quote can cost you more:
- It often skips the permit. Unpermitted, uninspected panel work can fail inspection later, and you pay to redo it correctly — on top of what you already spent.
- It can stall a home sale. Buyers' inspectors and lenders flag unpermitted electrical work. Fixing it under a closing deadline is the worst time to find out.
- It can give your insurer grounds to deny a claim. Insurance companies can deny claims tied to work done without the required permits and inspections. On a panel — the heart of your home's electrical system — that's a real exposure, not a hypothetical.
So when you're staring at two quotes and one is noticeably cheaper, the honest question isn't "why are they cheaper?" It's "what's not in that number — the permit, the inspection, the code-correct service entrance?" The permitted, inspected job is usually the financially safer path, not the expensive one.
A real Houston-area example
One anonymized real TriCoast panel-upgrade job to sit beside the typical range and prove these aren't stock numbers — e.g. "a [year] [city] home, 100A→200A, panel relocated from an interior closet to an exterior wall, CenterPoint reconnect + city permit and inspection, final $X." Do NOT fabricate a job, a city, a photo, or a dollar figure. Until the owner supplies a real example, ship this section with the placeholder only.
A specific, real job is the best way to make the range concrete — once we have one cleared to share, it lives here.
Do you even need a full upgrade?
Before you budget for the big job, here's something most electricians won't lead with: you might not need a full service upgrade at all.
A panel that's "full" — no open slots left — isn't automatically a panel that's out of capacity. Sometimes the right fix is a sub-panel, a tandem-breaker review, or simply a load calculation that proves your existing service can handle what you're adding. That's a far smaller number than a 200-amp upgrade.
So we do it backwards from the franchise playbook: we run a load calculation to verify whether you actually need an upgrade — before we ever quote one. If the math says a 200A upgrade is the right call, we'll show you why. If it says you don't need it, we'll tell you that just as plainly. Either way, you're not buying a panel on a guess.
That's the whole point of this guide: you should walk into a quote already knowing roughly where your home falls — not be talked into the most expensive version of the job.
What's included when we do it (permits, inspection, warranty)
When TriCoast does your panel upgrade, the price you're quoted includes the things some "bargain" quotes quietly leave out:
- Permit pulled — by a registered master electrician (TDLR EC #EECELE00037785), because in Houston that's the only way it can be done.
- Inspection scheduled and passed — we see the city inspection through, not just to the finish of the install.
- CenterPoint coordination — the utility-side disconnect and reconnect, handled.
- NEC 2023 code-correct work — grounding, bonding, labeling, the whole job done to current code.
- Workmanship warranty — we stand behind it.
- No upsell — a straight, written quote, and a load calc first to confirm you need what we're quoting.
That's a licensed master electrician with 27+ years in the Galveston Bay / South Houston corridor — local, accountable, and here when you call back.
Excellent communication in setting up the appointment! Donald is awesome. He explained the work, started immediately and ensured that the work was done correctly. The job site was spotless after the work was completed, and I was impressed that he has a checklist that will ensure a thorough job from start to finish. Outstanding company. Highly recommend.
I had a generator inlet and sub panel installed by Jason at TriCoast. The work was great, cleaned up their mess and tested everything before they left. I would absolutely recommend them to anyone looking for a professional electrical project. Pricing was extremely fair for the work that was done. Give them a call, you will not regret it.
Get a straight quote on your panel
You came here for a real number — $1,183–$1,972 for most panel upgrades, higher when the service entrance has to be rebuilt — and what drives it. The next step is a quote on your home, with the math behind it.
Get a straight quote on your panel
It's a no-obligation, no-upsell quote — and we lead with a load calc, not a sales pitch.
Want a quick ballpark first? Use our panel-upgrade cost calculator to estimate your panel-upgrade cost before we visit. Worried about the upfront cost? Ask us about financing options; sticker-shock relief shouldn't push you toward unpermitted work.
Prefer to talk it through? Call or text (832) 315-5772 — same-day callback. Or read the full service details on our panel upgrades & breaker replacement page. In Pearland? Here's a 200-amp panel upgrade in Pearland.