Longmont CO · Licensed Boulder County · Mon–Fri 8AM–8PM

Front Range power, done by the book.

Longmont Electrical Services runs out of 320 Terry St in downtown Longmont — a real licensed Boulder County crew, real shop you can walk into, and a phone that gets answered. Panel upgrades sized to actual load (Boulder County's solar+EV combo asks a lot of older panels), EV chargers with the Longmont permit pulled, solar tie-ins coordinated with Xcel Energy, and the older-home knob-and-tube swaps Main Street still needs. Mon–Fri 8 to 8.

Call (303) 630-0769 See services
Same-week scheduling
0% RATE
Book Mon, on-site by Fri
Open
0DAYS · 8–8
Mon–Fri, weekends closed
Solar tie-ins
0+
Boulder County PV installs
Panel upgrades
0
FPE & Zinsco swap-outs
Live · Foothills weather LONGMONT · 80501
62°F
Conditions Partly sunny · Clear
Wind
12 mph
Hail risk
Low
Xcel grid
Stable
Live · Daily route TODAY · BOULDER CO
10:00AM
Active · in progress
200A panel · Old Town
FPE Stab-Lok swap · 80501
Wiring
13:30PM
En-route · 1:30 PM
Tesla Wall Connector · Niwot
Dedicated 240V · 80503
En-route
15:00PM
Queued · 3:00 PM
Solar tie-in · Prospect
Xcel meter coord · 80501
Queue
08:30AM
Closed · 8:30 AM
Hot tub circuit · Erie
240V GFCI sub-feed · 80516
Done
Services · Longmont CO

Front Range work, done by Boulder County hands.

Longmont electrical work isn't generic — Boulder County leads the state in solar and EV adoption, the Main Street housing stock dates to the 1900s, and Front Range hail storms tear up service masts every season. Longmont Electrical Services reads each home before quoting: load calc first, then the permit, then the work.

★ FEATURED · 200A SERVICE
⚙
Load calc · permit · Xcel coordination

Full panel upgrades & FPE swap-outs.

Old fuse box, 100A service that can't carry an EV charger plus a heat pump plus a 5kW solar array, FPE Stab-Lok or Zinsco panel that should've been swapped a decade ago — we run a load calculation on your actual home, pull the Longmont permit, coordinate the Xcel Energy disconnect/reconnect, and swap the panel in a single day. Inspection passed the first time.

Permits · pulled by us · Square D · Eaton · Siemens →
🔌
02 · EV charging

EV charger installation.

Tesla Wall Connector, ChargePoint Home Flex, Wallbox Pulsar — panel-load calc first (Boulder County's solar+EV combo eats older 100A panels), dedicated 240V circuit, GFCI breaker, City of Longmont permit. Most installs done in a single visit.

City permit pulled→
☀️
03 · Boulder County

Solar tie-ins.

Inverter interconnect, AC tie, Xcel meter coord.

PV ready→
♨️
04 · Backyard

Hot tub circuits.

240V GFCI sub-feed, weather-rated for CO.

Code-clean→
🏚️
05 · Old Town

Knob-and-tube rewires.

Longmont's downtown core and the Main Street district still have plenty of 1900-1940s housing running knob-and-tube or ungrounded aluminum branch wiring. We do staged whole-home rewires that don't gut the house — fishing new copper through walls, replacing the panel, grounding properly, bringing the home up to current code without trashing the original lath and plaster.

Historic-friendly · no gut→
⛈️
06 · Storm response

Hail & weather damage.

Front Range hail storms regularly take out service masts, meter bases, weatherheads, and rooftop solar disconnects. We document the damage for your insurance carrier, replace what's needed, coordinate the Xcel Energy reconnect, and get power back on. Most callouts within 24 hours of the storm.

Insurance-ready reports→
💡
07 · Inside

Lighting & outlets.

Recessed cans, smart dimmers, outlet adds.

Clean drywall→
⚡
08 · Backup

Generator transfer.

Generac, Kohler ATS sized to load.

Whole-home→
Truck schedule · Boulder County

Last week, on the route.

Panel upgrades, Tesla installs, solar tie-ins, and a hot tub for a Niwot back deck — closed jobs across Longmont, Boulder, Niwot, Erie, and Lyons.

JOB · 001
Switchboard
Audit & upgradeLongmont · 80501
 JOB · 002
Diagnostics
Smart panelBoulder · 80301
 JOB · 003
Tools out
Service prepNiwot · 80503
 ★ LICENSED
On-site
Commercial fit-outErie · 80516
Coverage · Boulder County CO

Based at 320 Terry St.

HQ sits in downtown Longmont at 320 Terry St — a real shop you can walk into. From there we cover every Longmont ZIP, Boulder, Niwot, Erie, Frederick, Firestone, Mead, Lyons, and Berthoud across Boulder and southern Weld County.

📍
HQ · Downtown Longmont
320 Terry St
Longmont, CO 80501
→ 📞
Service · Mon–Fri
(303) 630-0769
Licensed CO electrician
↗ 🕐
Hours
8 AM – 8 PM · Mon–Fri
Closed Saturday & Sunday
→
Coverage · grouped by typical arrival from HQ 12 areas served
Under 15 min5
Longmont · 80501 Old Town · 80501 Prospect · 80501 Renaissance · 80504 Main Street · 80501
Under 30 min4
Niwot · 80503 Erie · 80516 Frederick · 80530 Firestone · 80504
Under 45 min3
Boulder · 80301 Lyons · 80540 Berthoud · 80513
Longmont homeowners

What the neighbors say.

Real Longmont, Boulder, Niwot, and Erie homeowners. Closed-job feedback from the past twelve months — panel upgrades, Tesla installs, solar tie-ins, hail storm callouts.

★★★★★ 2026 · 04 · Closed

"Bought a 1912 craftsman on the west side of Old Town and the inspection flagged knob-and-tube everywhere. Three electricians wanted to gut the place to do the rewire. Longmont Electrical Services proposed staged fishing through walls and joist bays — saved every bit of the original lath and plaster, did the panel swap and the rewire in four days. The City of Longmont inspector signed off without a single correction."

RM
Rachel M.
Old Town · 80501
Rewire · 1912 craftsman
★★★★★ 2026 · 03 · Closed

"Bought a Model 3 and our 100A panel was already running at 80% with the heat pump and the dryer. Longmont Electrical Services ran a real load calc, told me upfront I needed a 200A upgrade before the Wall Connector would work safely, and quoted both together. Coordinated Xcel for the disconnect, did the panel and the charger in a single day, charging at 48A by dinner. Honest scope from the first phone call."

JT
Jacob T.
Niwot · 80503
EV · panel upgrade
★★★★★ 2025 · 09 · Closed

"We had a 6.4kW solar array going in and our installer kept punting on the electrical tie-in. Longmont Electrical Services took over the electrical side — inverter interconnect, AC disconnect, sub-panel, Xcel meter coordination — and had the inspection done in one visit. Solar installer was actually grateful someone competent showed up. PV running since September."

DS
Diana S.
Prospect · 80501
Solar tie-in · Xcel
★★★★★ 2025 · 06 · Closed

"June hail storm came through and ripped our service mast clean off the side of the house — bare wires hanging, no power. Called Longmont Electrical Services the next morning at 8 AM. They had the mast, weatherhead, and meter base replaced by 2 PM, documented everything for our State Farm claim, and Xcel had us reconnected by sundown. The kind of Front Range service that matters."

MK
Mark K.
Erie · 80516
Hail · service mast
FAQ · Longmont Electrical Services

Before you call.

The questions Longmont and Boulder County homeowners ask most. If yours isn't here, the line picks up Mon–Fri 8 to 8.

Are you licensed in Colorado?
Yes. Longmont Electrical Services is a licensed Colorado electrical contractor based at 320 Terry St in downtown Longmont, 80501. Bonded and insured. License number and certificate of insurance available on request before any work begins.
What are your hours?
Open Monday through Friday, 8 AM to 8 PM. Closed Saturday and Sunday. We schedule by appointment most weekdays — call (303) 630-0769 to book. Same-week scheduling on most non-emergency work.
Which areas do you cover?
All Longmont ZIPs (80501, 80503, 80504) including Old Town, Prospect, Renaissance, and downtown Main Street, plus Boulder, Niwot, Erie, Frederick, Firestone, Mead, Lyons, and Berthoud across Boulder County and southern Weld County.
Do you install Tesla Wall Connectors & EV chargers?
Yes — Tesla Wall Connector, ChargePoint Home Flex, Wallbox Pulsar, Grizzl-E, and other Level 2 chargers. We start with a panel-load calculation (Boulder County's solar+EV adoption combo is one of the highest in the state — many homes need 200A or 400A service to handle everything), pull the City of Longmont permit, install a dedicated 240V circuit on a GFCI breaker.
Do you do solar tie-ins?
Yes. Boulder County solar adoption is significant — we handle the electrical side of solar PV installs: inverter interconnect, sub-panel, AC disconnect, tie-in to the main service panel, and meter coordination with Xcel Energy. We work with most major Boulder County solar installers on the electrical permit and inspection.
Can you handle hail damage electrical?
Yes. Front Range hail storms regularly damage service masts, meter bases, weatherheads, and rooftop solar disconnects across Longmont and Boulder County. We assess the damage, document for your insurance carrier (State Farm, Allstate, USAA), replace what's needed, and coordinate the Xcel Energy reconnect. Most callouts within 24 hours.
Live · Longmont CO · Mon–Fri 8–8

Panel ready. Today.

Old panel that won't hold a Wall Connector, solar install needing the tie-in done right, June hail storm that ripped your mast off, hot tub on the back deck that needs a sub-feed. A licensed Boulder County electrician answers — Mon–Fri, 8 AM to 8 PM.

Call (303) 630-0769 See services
Tap to call · Mon–Fri 8–8 (303) 630-0769