DTE Service Upgrade: How It Works, Who Pays, and How Long It Takes

A DTE service upgrade is the utility side of raising your home’s electrical service, usually from 60, 100, or 150 amps to 200. DTE handles the wires up to the meter and the meter itself. Your electrician handles the socket, service entrance, panel, and grounding, and the city inspects the work before power comes back.

IB Electric has coordinated service upgrades with DTE across Metro Detroit since 2002. Our founder, Imad Boussi, has been a Michigan master electrician since 1997. The confusing part for homeowners is that two organizations have to move in sequence, and neither one manages the other. Most delays we see come from that gap, not from the electrical work. This guide lays out who does what, who pays for what, how the sequence runs, and where upgrades usually stall.

DTE Service Upgrade: Who Owns Which Part?

A DTE service upgrade splits cleanly at the meter, and knowing the line saves a lot of confusion. DTE owns the service drop or underground lateral that brings power to your home, and it owns the meter itself. You own everything else: the meter socket, the mast or riser, the service entrance conductors, the main panel, and the grounding system. Your electrician works on your side. DTE works on its side. Neither one can finish without the other.

That split also explains the sequence. DTE will not energize a new service until the city or state inspector approves the work on your side. Your electrician cannot finish the connection until DTE disconnects the old service and later sets the meter. For the official request path, DTE’s modify service page directs homeowners to call (800) 338-0178 to upgrade existing service and to check progress. The table below shows the usual division on a residential job.

With the line drawn, the next question is whether you need the utility involved at all.

When Do You Need a DTE Service Upgrade?

You need a service upgrade when your load outgrows your service, not simply when your panel looks old. The common triggers are a fuse box or 60-amp service, a 100-amp service in a home adding an EV charger or heat pump, an addition or basement finish, and a panel with no room left. A standby generator can trigger it too, since the transfer switch ties into the service. Our guide to a breaker that keeps tripping covers the symptoms that start this conversation.

A load calculation settles it. An electrician totals your existing demand, adds the new loads, and compares the result against your service size. Plenty of 200-amp homes need only panel space, a much smaller job. Plenty of 100-amp homes need the full upgrade the moment a 48-amp charger enters the picture, as our EV charger permit guide explains. Condition matters as well. Obsolete panels, such as the ones covered in our Federal Pacific panel replacement guide, come out regardless of capacity.

Pro tip: Installing a 200-amp panel does not give you a 200-amp service. If the conductors, socket, and utility connection still match the old size, the service has not changed, and an inspector will say so.

Once the calculation says upgrade, the sequence starts.

How the DTE Service Upgrade Process Works

The process runs in a fixed order, and skipping a step usually costs weeks. It starts with the load calculation, which fixes the service size everyone else works from. Next comes the DTE request, by phone at (800) 338-0178 or through your contractor, which opens a job on the utility side. DTE then designs the service for your address, confirming where the meter goes and how power will reach it. For new construction or major renovations, DTE routes customers through its new construction service path instead.

The permit comes next, filed with your city, township, or the state. Then the work itself happens in one window: DTE disconnects, the electrician replaces the socket, service entrance, panel, and grounding, and the inspector checks it. The inspection approval is the hinge. It releases DTE to set the meter and reconnect the house. Only after the reconnect does the permit close. The steps below are the order we follow on a Metro Detroit upgrade.

1. Get a load calculation. An electrician calculates your actual demand, including anything you plan to add, and confirms whether 200 amps is the right size.
2. Call DTE to open the request. Call (800) 338-0178 to request an upgrade to existing service, or have your contractor submit the request, and ask what the design will involve at your address.
3. Let DTE design the service. DTE reviews the address, confirms the meter location and how power will reach it, and tells you what work falls on your side.
4. Pull the electrical permit. Your electrician files with your city or township building department, or with the state where no local program exists.
5. Schedule the disconnect and the work. DTE disconnects power for the window, the electrician replaces the socket, service entrance, panel, and grounding, then calls for inspection.
6. Pass inspection and reconnect. The inspection approval releases DTE to set the meter and reconnect the house, which closes out the permit.

Use the tool below to see which path your home is likely on.

The biggest budget variable sits in how DTE will bring power to the new meter.

Overhead or Underground: What DTE Requires Now

Older Metro Detroit homes are mostly fed overhead, with a wire running from a pole to a mast or roofline. Newer subdivisions are fed underground, through a lateral buried between a transformer and the meter. That difference used to be cosmetic for upgrades. It is not anymore. DTE’s residential service pages state that new, relocated, or upgraded residential service connections are installed as underground residential service laterals at the customer’s expense.

For an overhead home, that policy can turn a straightforward upgrade into a trenching project, with cost and yard restoration attached. It also changes where the meter can sit and how the service entrance runs inside. Because the details depend on your lot, the transformer location, and what DTE finds at design, ask about it on the first call rather than at quote time. Homeowners who learn about the lateral after signing an electrical quote are the ones who feel blindsided. Ask early, and the number stops being a surprise.

Those same variables drive how long the project takes.

How Long Does a DTE Service Upgrade Take?

Plan in weeks, not days. The electrical work is usually the shortest part, often a single day for a straightforward swap. Everything around it takes longer: DTE design and scheduling, the permit, the inspection, and the meter set. DTE publishes step-by-step timelines for gas service modifications, but not an equivalent promise for residential electric upgrades, so treat any specific week count you read online with caution. What we can say from experience is that the utility steps, not the wiring, set the pace.

Several things stretch the schedule. Trenching for a lateral adds excavation and restoration. Meter relocations add design time. Winter ground conditions slow digging across Michigan. Inspection backlogs vary by community, which our electrical panel upgrade permit guide covers. The practical move is to start early, before the EV arrives or the addition is framed, and to keep one contractor accountable for both sides of the schedule.

Knowing where upgrades usually stall is the cheapest planning you can do.

What Usually Delays a Service Upgrade

Most delays are physical, not administrative. A meter blocked by a deck, fence, shrubs, or a locked gate stops the work until access is cleared. Tree limbs grown into the drop have to be handled before anyone touches the service. Mismatched paperwork causes the rest: a permit written for one service size and equipment installed at another, or a DTE request opened for a different scope than the electrician quoted. Each one costs a return trip from somebody.

There is one more that catches DIY-minded owners. Swapping in a 200-amp panel without upgrading the service leaves the house with new equipment on old conductors, and inspectors flag it. Our guide to old house electrical problems covers the conditions that often surface during this work, from undersized service entrance cable to missing grounds. Clearing access, trimming vegetation, and matching the permit to the design prevent most of the lost days. Ask your electrician for the exact list before the disconnect date.

• Clear access to the meter and panel, including gates, pets, and stored items
• Trim vegetation around the drop before the appointment, using a professional near live wires
• Match the permit, the DTE request, and the quote to the same service size
• Confirm the meter location in writing before materials are ordered
• Plan for a power outage during the work window, and for pumps, medical equipment, and freezers

Cost is the last piece, and it splits along the same line as the work.

What Does a Service Upgrade Cost?

Your costs fall into three buckets: the electrician’s work, the permit, and anything DTE charges for the connection. The electrical side covers the socket, service entrance, panel, breakers, grounding, and labor, and our guide to the cost to replace an electrical panel breaks those numbers down for Michigan. Permit fees are set locally and typically run in the low hundreds for a residential job. The utility side depends on the design, which is why the underground lateral question matters.

A standby generator needs a transfer switch tied into the service, so combining it with an upgrade saves a second mobilization, as our whole house generator cost guide explains. An EV charger is cheaper to install while the panel is open, and DTE’s home EV charger information covers its programs. Ask for one quote that names the service size, the meter work, the permit, and anything excluded. Your inspector has the final word, and the LARA Electrical Section enforces the code where the state is the agency.

Conclusion

A DTE service upgrade is really two projects that have to meet in the middle: utility work up to the meter and licensed electrical work beyond it. Get the load calculation first, because it sets the service size and tells you whether DTE needs to be involved at all. Then expect a sequence rather than a single appointment. Design, permit, disconnect, work, inspection, reconnect. Homeowners who plan in weeks and ask about the underground lateral policy early are the ones who avoid the expensive surprises.