Great communication and speedy service! Give that PM a raise :) Thank you.
Clear Creek Community Church
Verified Housecall Pro review · November 2025
Commercial Service & Panel Upgrades — Capacity for What's Next
Your building has more it needs to do — a new HVAC unit, added equipment, a tenant's load, EV charging — and the electrical service is the thing standing in the way. TriCoast Electrical handles commercial service and panel upgrades across the Galveston Bay / South Houston corridor, including three-phase work, and we coordinate the CenterPoint service change so you're not the one chasing the utility.
TDLR EC #EECELE00037785
Licensed master electrician
27+ years
Built to NEC 2023 · Permits & inspection included
Tell us the load you're adding — we start with a load calculation, not a guess.
TDLR EC #EECELE00037785
Licensed Master Electrician
27+ Years Experience
Permits & Inspection Handled
NEC 2023 Code-Compliant
Workmanship Warranty
The trigger
Is your building outgrowing its service?
A commercial upgrade rarely starts with "I want a new panel." It starts with something you can't do until the capacity is there. If any of these sound like your building, you're in the right place:
- The panel is full — no spare slots for the next circuit.
- You're adding HVAC or rooftop units (RTUs) and the service won't carry the new load.
- New equipment or a production line is coming and the existing service can't support it.
- A tenant's load increased — or a new tenant's finish-out needs more than the space was built for.
- You're planning EV charging for staff, fleet, or customers.
- An inspection failed — or one's coming up — and the service or panel won't pass as-is.
- You're expanding and the service entrance is simply too small for the building you're becoming.
Here's the honest stake: when capacity runs out, the project stops. The equipment can't be energized, the build-out can't be occupied, the inspection doesn't clear — and every day of that is lost revenue. The upgrade isn't the project; it's what makes the project possible.
Scope
What we do — commercial service & panel upgrades
We handle the electrical-capacity side of commercial work end to end:
- Service upgrades / heavy-ups — right-sizing the incoming service to your real and planned load.
- New switchgear & distribution panels — for added load, a new tenant, or an expansion.
- Three-phase service, including 277/480V — the capability most Galveston-corridor local-pack electricians don't offer, because they're residential-only.
- Meter and service-entrance work — coordinated with the utility (see below).
- Subpanels for added load — distributing new capacity where the new equipment lives.
- Capacity provisioning for EV charging and HVAC — sizing the service for what's coming, not just what's there.
Placeholder — needs real data:
Confirm exact scope actually performed (three-phase / switchgear) and the commercial amperage ranges TriCoast typically handles, so every claim above is true.
Placeholder — needs real data:
Real commercial job photos — before/after of a panel, switchgear, or service entrance, and meter coordination. This is the page's single biggest anti-doorway asset.
Utility coordination
Utility coordination handled (CenterPoint)
This is where commercial upgrades stall. A commercial service change isn't just swapping a panel — it requires coordinating with CenterPoint for the service change and the disconnect-reconnect. When that coordination is left to the business, projects sit and wait.
We own that coordination. We work the CenterPoint side for you and sequence the cutover against your operations to keep downtime as short as possible — so you're not stuck between the contractor and the utility, watching the schedule slip. Utility coordination is one of the longer lead items on any commercial electrical project, which is exactly why we get it moving early instead of late.
Placeholder — needs real data:
Owner-confirmed CenterPoint coordination specifics for this corridor (typical sequence and lead-time ranges actually observed). Do NOT invent utility timelines or fees.
Code & permits
Permits, inspection & code (NEC 2023)
We pull the commercial permit, schedule the inspection, and build to NEC 2023 — so your occupancy, your tenant's move-in, or your expansion isn't held up by a failed or skipped inspection. A failed inspection on a commercial project doesn't just cost a re-do; it can push back the date you're allowed to operate. We do it once, to code, with the permit in hand.
If your project also needs a sign-off or a standalone inspection, see our commercial electrical inspection page.
No upsell
Load calculation first — how we scope it
We start with a load calculation, not a quote. We size the service to your actual and planned load — the equipment you're adding now plus the capacity you'll reasonably need next — so you buy the service you need and not more than that.
That's the answer to the question every operator is right to ask: won't they just oversell me a bigger service? No. The load calc is the math, and the math decides the size. It's also why we don't publish a flat commercial price — a real number comes from your real load, not a menu.
Capacity as an investment
Built for what's next: EV charging, HVAC & added equipment
Think of a service upgrade the way you'd think of any other capacity investment: it's the thing that makes the next move possible. The right-sized service is what lets you add EV charging later, bring on the HVAC the space needs, or absorb a tenant's load without tearing back into the walls.
Done once, sized for what's coming, it's the difference between "we'd have to upgrade first" and "yes, we can do that." If EV charging or a finish-out is on your roadmap, the service is the foundation under both:
- Commercial EV charging stations — you'll need the service capacity first.
- Commercial tenant build-out — service capacity is often the bottleneck in a finish-out.
Why TriCoast
Why businesses choose TriCoast
- A licensed master electrician — TDLR EC #EECELE00037785, 27+ years, accountable and local to the Galveston Bay / South Houston corridor.
- We coordinate the utility so you're not stuck chasing CenterPoint.
- Permits pulled, inspection scheduled, built to NEC 2023 — included, not an extra.
- No-upsell — load calculation first; we size it to your load, not your budget.
- Workmanship warranty and on-time scheduling sequenced around your operations.
We're not always the cheapest bid you'll get.
We pull the permits, coordinate the utility, build it to NEC 2023, and stand behind it — and for a project that has to keep your doors open, that's the part that matters.
Trusted across the corridor
Including reviews from business and organization clients we've served:
Top notch service every time. Had an emergency call out and they were on it!
Third Coast Construction & Excavation, LLC
Verified Housecall Pro review · September 2025
Placeholder — needs real data:
Service-specific commercial job photos — before/after of a panel, switchgear, or service entrance, and meter coordination — plus a by-type case study (e.g., "480V three-phase service upgrade for a Texas City light-industrial tenant"; "200A heavy-up for a Webster retail finish-out"). The named business reviews shown above are genuine commercial/organization customers; a project-by-type reference would make this section even more concrete. Do NOT invent it.
Service area
Areas served — the commercial corridor
We serve commercial properties across the Galveston Bay / South Houston corridor:
- Texas City / La Marque — industrial and commercial properties.
- Webster / Clear Lake — the NASA and medical corridor.
- League City, Friendswood, Pearland, Dickinson — Bay Area commercial and retail.
- Galveston Island — Island commercial and tenant spaces.
We also serve Santa Fe, Hitchcock, Kemah, Seabrook, Nassau Bay, El Lago, Taylor Lake Village, Bacliff, San Leon, Bayou Vista, Clear Lake Shores, Alvin, Manvel, and the surrounding communities. Don't see your town? We likely cover it — see our service areas.
FAQ
Frequently asked questions
Do you handle the coordination with CenterPoint for a service upgrade?
Yes. We own the CenterPoint coordination — the service change and the disconnect-reconnect — and sequence the cutover against your operations to minimize downtime, so you're not stuck between the contractor and the utility.
Can you do three-phase / 277/480V commercial panel upgrades?
Yes — three-phase work, including 277/480V, is commercial capability that most local-pack electricians in this corridor don't offer because they're residential-only.
Will you pull the commercial permit and handle inspection?
Yes. We pull the commercial permit, schedule the inspection, and build to NEC 2023 — so a skipped or failed inspection doesn't hold up your occupancy or expansion.
How long does a commercial service/panel upgrade take, and how much downtime?
It depends on scope and the utility's part of the work, but we sequence the cutover around your operations to keep downtime as short as possible — and we get the longer-lead items (like utility coordination) moving early so the schedule doesn't sit.
Will this give us capacity for EV charging or new HVAC/equipment later?
That's often the whole point. We size the service for your actual load plus the capacity you'll reasonably need next, so future EV charging, HVAC, or added equipment is something you can add — not another upgrade you have to do first. See commercial EV charging and tenant build-out.
How do you decide how big a service we need — and won't you just oversell it?
We start with a load calculation, not a quote. The math sizes the service to your real and planned load — so you get the capacity you need and don't pay for capacity you don't.
Placeholder — needs real data:
FAQ "CenterPoint coordination": owner-confirmed coordination process and typical lead-time ranges for this corridor. FAQ "three-phase": confirm exact three-phase / switchgear scope performed so the claim is precise. FAQ "how long / downtime": typical project timeline observed locally — do not publish an invented number.
No-obligation quote · permits & inspection included · workmanship warranty · built to NEC 2023.
Adding electrical capacity at home instead? See our residential panel upgrade page.
Request a commercial quote
Tell us the load you're adding — we'll start with a load calculation, not a guess.
No obligation, no pressure
Permits & inspection handled
Workmanship warranty