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Find Electrical wiring or panel upgrade pros in Longmont

Avatar for All About Electric
All About Electric
4.8(
124
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Extremely professional and quick with the project! Well versed on home vehicle charging stations...would highly recommend to anyone with this need or in the market for an electric vehicle."
Response time5 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Amp'd Up Electric LLC
Amp'd Up Electric LLC
5.0(
38
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"He was great and knowledgeable help me figure out some things about my electric panel and add some things to the house connected my humidifier and other new things in the house to the panel Great pricing too! Thank you Avery!!!"
Mountain Work
Mountain Work
Mountain Work
Mountain Work
Mountain Work

+12

2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for JM Electric Inc
JM Electric Inc
4.7(
77
)

Serving Longmont, CO and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"For both jobs, the technician arrived on time. For the electrical panel, they brought two certified electricians for the job (Domenic was the primary). Both were extremely efficient, professional, friendly and clean. They obtained the permit and scheduled the inspection. The inspection occurred two days later with no problems. The inspector commented he though they had done an outstanding job. For the spa connection, Domenic returned and did an outstanding job on this as well. I would definitely hire this company again for any electrical. I felt the price was reasonable as well."
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+2

Response time8 hrs
2 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Diagnostic Guys
Diagnostic Guys
5.0(
11
)

Serving Longmont, CO and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"The Diagnostic Guys are our go to for anything electrical. They have done great work updating our light fixtures, adding new lighting (indoor and outdoor) and adding outlets. They are always courteous, prompt and meticulous about the details. Couldn’t be happier with the services they’ve provided for us!"
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+11

Response time6 hrs
Recommended by90%of homeowners
Avatar for Table Mountain Electric inc.
Table Mountain Electric inc.
4.8(
34
)

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Warranties offered

"Table Mountain called us right away. Gave us a price for replacing our electric panel. They came to the house with all of the parts that they needed. Our electricians were polite and professional finished the same day. It was inspected passed and for the amount they told us. I would use them again."
200amp panel and meter housing
200amp Electrical Panel
200amp All In One Panel Upgrade
Dual 200amp panels
200amp all in one panel upgrade

+60

Response time7 hrs
Response rate97%
6 neighbors recently requested a quote
Avatar for MightyBee Electric, LLC
MightyBee Electric, LLC
4.5(
292
)

Serving Longmont, CO and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"What a terrific experience we had with Mighty Bee Electric! Martin came the next day after we called. He was on time, clearly knows what he is doing and fixed everything for the estimated cost. And there was no upselling! I will definitely call him for any future electric work!"
Additional Photos
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+17

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for AAA Service Plumbing, Heating & Electric
AAA Service Plumbing, Heating & Electric
4.4(
466
)

Serving Longmont, CO and surrounding areas

Approved

In business since 1983

Free estimates

Credit card accepted

"ELI was wonderful! He arrived on time, was friendly, thorough and quick. What really impressed me was ELI'S attention to the little details--he made sure no water, garbage got loose under the counter, used a mat to protect my floor/inside counter, cleaned up everything--even my sink--when he was done and, finally, put everything back under the counter where it was before he came! Above and beyond customer service! I will recommend AAA who anyone who needs drains unplugged! Also I like the company and especially the SERVICE so much, I'm meeting with a tech for another job--electrical this time. THANK YOU, ELI for your time, service and patience with my speech! much appreciated!"
My jobs
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Recommended by94%of homeowners
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FAQs for electrical wiring or panel upgrade projects in Longmont, CO

A whole-house surge protector blocks voltage spikes from lightning, grid issues, or even large appliances before they can fry your wiring or electronics. By diverting excess current at the main panel, it shields everything from your HVAC to your phone chargers and can extend the life of pricey appliances. Homeowners in storm-prone regions or with older panels see the biggest payoff, but any home that relies on sensitive electronics benefits.

Most whole-house surge protectors work for two to three years. Low-level spikes—too small to notice—hit your panel every day and slowly wear down the internal components. Once the unit’s capacity is depleted, it can’t prevent a larger surge, so plan to replace it on schedule (or sooner if a major lightning strike occurs) to keep your electronics and HVAC equipment safe.

A surge protector begins guarding your circuits the moment an electrician snaps it into place. Whether the spike originates from a nearby lightning strike or your fridge kicking on, the protector shunts the extra current to ground before it can reach outlets or hard-wired systems, such as your AC. That instant response is why a small upfront cost can save thousands in appliance repairs.

The unit mounts on or next to your main electrical panel. Type 1 models sit on the supply side, catching outside spikes before they hit the breaker. Type 2 devices snap inside the panel and tame surges that start within the house. Either way, placement at the panel lets the protector guard every circuit at once.

Plan to swap the device every three to five years—or sooner if you upgrade your panel, add high-demand appliances, or notice flickering lights and tripped breakers. Relying on a maze of power strips is another red flag that your current setup isn’t keeping up. Replacing the surge protector at these milestones keeps your electrical system on safe footing.

The Longmont, CO homeowners’ guide to electrical wiring or panel upgrades

From average costs to expert advice, get all the answers you need to get your job done.