How much does electrical panel upgrade cost in Longmont, CO?

Most Longmont homeowners spend between $1,900 – $4,750 on electrical panel upgrade, with an average around $3,050. Local labor prices 5% above the national average, so Longmont quotes tend to land at the higher end of national ranges.

Why is electrical panel upgrade more or less expensive in Longmont than elsewhere?

Licensed trade labor in Longmont runs about 105% of the national average, and the best crews book out fastest in spring and early summer. Colorado weather drives material choices here, so ask contractors what they install most often in Longmont and why.

Do I need a permit for electrical panel upgrade in Longmont, Colorado?

Most Longmont, CO projects that change structure, electrical, plumbing or mechanical systems need a permit from the local building department; cosmetic work usually does not. Always confirm current requirements with the local building department before signing a contract, and make sure the permit is pulled by your licensed contractor.

How many quotes should I get in Longmont?

Get at least three written quotes from licensed, insured Colorado contractors. Comparing line items — not just the bottom line — is the fastest way to spot an inflated bid in the Longmont metro market.

How much does a 200 amp panel upgrade cost?

$2,000 to $4,500 typically, or $2,800 to $6,000 if the meter base and service entrance also need replacing.

How long does a panel upgrade take?

One day for the electrical work, with power out four to eight hours. Utility scheduling and inspection may spread it over a few days.

Do I need 200 amps for an EV charger?

Usually. A Level 2 charger draws 40 to 60 amps; most 100 amp services cannot support it without load management.

Is a permit required?

Always. The utility will not reconnect without an inspection sign-off, and unpermitted work surfaces during a home sale.

What are Federal Pacific and Zinsco panels?

Obsolete panels with breakers that fail to trip. Insurers often refuse coverage and replacement is strongly recommended regardless of capacity.

Can I just add a subpanel instead?

A subpanel adds circuit space, not capacity. If your total service is maxed out, you still need the main upgrade.

Home/Cost guides/Electrical Panel Upgrade/Longmont, CO

Longmont metro · Colorado

Electrical Panel Upgrade cost in Longmont, CO

Longmont homeowners typically pay $1,900 – $4,750 for electrical panel upgrade. Local labor and materials price 5% above the national average.

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Longmont average

$3,050

Typical low

$1,900

Typical high

$4,750

Per panel

$1,350 – $6,300

Sample ZIP

What drives Longmont pricing

Local labor

Licensed trade labor in Longmont runs about 105% of the national average, and the best crews book out fastest in spring and early summer.

Permits & code

Most Longmont, CO projects that change structure, electrical, plumbing or mechanical systems need a permit from the local building department; cosmetic work usually does not.

Climate & conditions

Colorado weather drives material choices here, so ask contractors what they install most often in Longmont and why.

Instant cost calculator

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Panels to upgrade1 panel

Target service size

Service entrance

Panel location

Code corrections

Estimated project cost

$1,350 – $2,650

Most homeowners pay around $2,000

Compare target service size

Cost by material in Longmont

Installed Longmont pricing per panel.

Option	Installed cost	Pros	Cons
100 amp service	$1,350 – $2,650	Fine for small homes with gas heat	No headroom for EV or heat pump
150 amp service	$1,900 – $3,350	Middle ground	Often costs nearly the same as 200
200 amp service	$2,100 – $4,750	The modern standard, supports EV and electrification	May require new meter base
400 amp service	$4,200 – $9,450	Large homes, shops, multiple EVs	Utility coordination and two panels
Subpanel	$630 – $2,100	Cheap way to add circuits	Does not increase total service capacity

Where the money goes in Longmont

A typical $3,050 Longmont project, broken down by line item.

Labor48% · $1,464
Panel and breakers27% · $824
Service entrance materials15% · $458
Permits and inspection10% · $305

Common add-ons

Extras that show up on Longmont quotes but rarely in the headline price.

EV charger circuit

$525 – $2,100

Whole-home surge protector

$265 – $735

Generator interlock or transfer switch

$420 – $2,650

Grounding rod system update

$210 – $840

AFCI/GFCI breaker upgrades

Per breaker

$42 – $125

Ways to save in Longmont

Go straight to 200 amp — the incremental cost over 150 is small and you will not repeat the job.
Bundle EV charger, surge protector and any new circuits into the same permit and visit.
Check for utility and federal electrification rebates before you sign.
Get three bids; panel pricing varies more between electricians than almost any other trade.
Ask about keeping the panel in its existing location to avoid relocation cost.

Longmont FAQs

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