Top-rated electrical wiring or panel upgrade pros.

Get matched with top electrical wiring or panel upgrade pros in Centennial, CO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Electrical wiring or panel upgrade pros in Centennial

Martin Electrical Contracting LLC

5.00(
1
)
Approved Pro

Martin Electrical Contracting LLC

5.00(
1
)
Approved Pro
2 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Mike is awesome at what he does always reliable and dependable. Have worked with mike on numerous jobs. I sell real estate for a living and hes always helping my clients. "

Jim h on March 2025

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Mike is awesome at what he does always reliable and dependable. Have worked with mike on numerous jobs. I sell real estate for a living and hes always helping my clients. "

Jim h on March 2025


Redrocks Roof and Solar LLC

3.94(
8
)
Approved Pro

Redrocks Roof and Solar LLC

3.94(
8
)
Approved Pro
Customers say: Quality work
4 years of experience
Free onsite estimate

Redrocks Roof and Solar LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customer's interests and make their concerns the basis of our business.

"Per my contract with Redrocks Roof and Solar, I am to notify them if I suspect my solar system is not producing per their design, and to begin an "underproduction claim". If underproducing, they will compensate for lost production. My system operational as of May 5, 2025, I contacted them in August 2025 informing them of above stated concern. Called 3 times without a response until finally tech came out with last second notice on 9/2/2025. Fortunately I was home, helped him find 9 out of 14 panels that were never wired in. Photos were taken/sent to Redrocks. Additionally, it was discovered a setting on the system phone app given to me to monitor system was not enabled, which they were supposed to explain in detail to me and never did. So for 4 months my system was only producing 33%, Brooke (owner) acknowledged in a live phone call on the spot. I never received parts warranty details per the contract, no response after emails and phone messages about all this. I DO NOT RECOMMEND!!!"

THOMAS R on October 2025

Redrocks Roof and Solar LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customer's interests and make their concerns the basis of our business.

"Per my contract with Redrocks Roof and Solar, I am to notify them if I suspect my solar system is not producing per their design, and to begin an "underproduction claim". If underproducing, they will compensate for lost production. My system operational as of May 5, 2025, I contacted them in August 2025 informing them of above stated concern. Called 3 times without a response until finally tech came out with last second notice on 9/2/2025. Fortunately I was home, helped him find 9 out of 14 panels that were never wired in. Photos were taken/sent to Redrocks. Additionally, it was discovered a setting on the system phone app given to me to monitor system was not enabled, which they were supposed to explain in detail to me and never did. So for 4 months my system was only producing 33%, Brooke (owner) acknowledged in a live phone call on the spot. I never received parts warranty details per the contract, no response after emails and phone messages about all this. I DO NOT RECOMMEND!!!"

THOMAS R on October 2025


Avatar for All Electric, LLC

All Electric, LLC

4.90(
5
)
Approved Pro

All Electric, LLC

4.90(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"They put in a new plug and fixed problems in my box. They did an overall great job. They did have to come back because the GFI was tripping . They had to tweak something and it if fine. I appreciate the good job."

Tammy L on January 2023

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"They put in a new plug and fixed problems in my box. They did an overall great job. They did have to come back because the GFI was tripping . They had to tweak something and it if fine. I appreciate the good job."

Tammy L on January 2023


Avatar for Shock Value LLC

Shock Value LLC

5.00(
9
)
Approved Pro

Shock Value LLC

5.00(
9
)
Approved Pro
1 years of experience
Free onsite estimate

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Simon is very professional and knowledgeable he upgraded my electrical system in my garage for my woodworking hobby at MUCH LESS than the 2 other quotes I got. He had some great ideas for “future proofing” my upgrades and was very helpful on some layout suggestions. If it wasn’t for Simon’s estimate and professional approach I would still be tripping over extension cords in the future. I HIGHLY recommend him for any upgrades and electrical issues you may have. I plan on hiring him again for some other updates I need in my house. FIVE stars PLUS from me. "

David M on June 2025

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Simon is very professional and knowledgeable he upgraded my electrical system in my garage for my woodworking hobby at MUCH LESS than the 2 other quotes I got. He had some great ideas for “future proofing” my upgrades and was very helpful on some layout suggestions. If it wasn’t for Simon’s estimate and professional approach I would still be tripping over extension cords in the future. I HIGHLY recommend him for any upgrades and electrical issues you may have. I plan on hiring him again for some other updates I need in my house. FIVE stars PLUS from me. "

David M on June 2025


Avatar for Rocky Mountain Electric Co.

Rocky Mountain Electric Co.

5.00(
11
)
Approved Pro

Rocky Mountain Electric Co.

5.00(
11
)
Approved Pro
Customers say: Quick response
20 local quotes requested
3 years of experience

At Rocky Mountain Electric Co we are here to offer you peak electrical service. We are a family owned business founded in winter of 2023. You will find that working with us is much more personal than many other contractors as we value our individual relationships directly from owner to customer. As Master Electricians, we can offer you quality electrical services for anything from a bad outlet to panel changes and major remodels/additions. We look forward to welcoming you into our circle!

"I was referred here from a family member for a laundry list of electrical I needed done. They installed can lights all around my home, added some outlets and ran a circuit for my hot tub. If you need an electrician, you can stop your search here!"

Jennifer H on January 2024

At Rocky Mountain Electric Co we are here to offer you peak electrical service. We are a family owned business founded in winter of 2023. You will find that working with us is much more personal than many other contractors as we value our individual relationships directly from owner to customer. As Master Electricians, we can offer you quality electrical services for anything from a bad outlet to panel changes and major remodels/additions. We look forward to welcoming you into our circle!

"I was referred here from a family member for a laundry list of electrical I needed done. They installed can lights all around my home, added some outlets and ran a circuit for my hot tub. If you need an electrician, you can stop your search here!"

Jennifer H on January 2024


Avatar for Douglas-Electric, LLC

Douglas-Electric, LLC

5.00(
8
)
Approved Pro

Douglas-Electric, LLC

5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"We needed more power and Zach worked with CORE to get our new transformer installed. Great communication; very responsive. High quality work and attention to detail. He went over and above with our upgrade and install of hot tub. He even showed me how to operate the new hot tub! He is now my go-to guy for any electrical needs in the future! It doesn't get any better than this."

Susan B on June 2023

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"We needed more power and Zach worked with CORE to get our new transformer installed. Great communication; very responsive. High quality work and attention to detail. He went over and above with our upgrade and install of hot tub. He even showed me how to operate the new hot tub! He is now my go-to guy for any electrical needs in the future! It doesn't get any better than this."

Susan B on June 2023


ELS Electric, LLC

4.95(
11
)
Approved Pro

ELS Electric, LLC

4.95(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

ELS Electrical, LLC, has been completing electrical work for residential clients for 7 years. We complete a wide range of projects, from a simple ceiling fan repair, to a full electrical install on a custom home, anything and everything electrical. ELS Electric, LLC, values customer service, professionalism, and integrity. We are passionate about exceeding your expectations and would love to hear from you. We offer competitive pricing, so give us a call for a free estimate. service changes, new construction, residential, ELS Electric, service changes and panel upgrades.

"Very responsive, kept me updated on appointments and progress !"

John k on March 2020

ELS Electrical, LLC, has been completing electrical work for residential clients for 7 years. We complete a wide range of projects, from a simple ceiling fan repair, to a full electrical install on a custom home, anything and everything electrical. ELS Electric, LLC, values customer service, professionalism, and integrity. We are passionate about exceeding your expectations and would love to hear from you. We offer competitive pricing, so give us a call for a free estimate. service changes, new construction, residential, ELS Electric, service changes and panel upgrades.

"Very responsive, kept me updated on appointments and progress !"

John k on March 2020


Avatar for Awesome Home Services

Awesome Home Services

4.66(
23
)
Approved Pro

Awesome Home Services

4.66(
23
)
Approved Pro
Customers say: Quality work
862 local quotes requested
2 years of experience

"At Awesome Home Services, we believe in the power of small businesses to make a significant impact. Our vision is to enrich the lives of our employees and deliver exceptional service to our clients. We are committed to: Community Engagement: We are passionate about the cities we operate in and are dedicated to contributing positively to this great community. Employee Empowerment: We create opportunities and a supportive environment for our team, fostering growth and professional development. Excellence in Service: Striving to be your whole-home service expert, we specialize in HVAC, plumbing, and electrical services. We love people, the trades, and our community. At Awesome Home Services, we are more than a business; we are a part of this community, committed to making a difference."

"Arber was so kind and friendly. He communicated with us well about his arrival time. He was very professional and knowledgable. He helped comfort us about the situation with our furnace and gave us get tips and tricks to help keep our home warm until the part we needed was available. He was very respectful of our home. Arber was really amazing in our emergency situation. Arber and his company are truly AWESOME! "

Corinna R on November 2025

"At Awesome Home Services, we believe in the power of small businesses to make a significant impact. Our vision is to enrich the lives of our employees and deliver exceptional service to our clients. We are committed to: Community Engagement: We are passionate about the cities we operate in and are dedicated to contributing positively to this great community. Employee Empowerment: We create opportunities and a supportive environment for our team, fostering growth and professional development. Excellence in Service: Striving to be your whole-home service expert, we specialize in HVAC, plumbing, and electrical services. We love people, the trades, and our community. At Awesome Home Services, we are more than a business; we are a part of this community, committed to making a difference."

"Arber was so kind and friendly. He communicated with us well about his arrival time. He was very professional and knowledgable. He helped comfort us about the situation with our furnace and gave us get tips and tricks to help keep our home warm until the part we needed was available. He was very respectful of our home. Arber was really amazing in our emergency situation. Arber and his company are truly AWESOME! "

Corinna R on November 2025


Avatar for Applewood Plumbing, Heating & Electric

Applewood Plumbing, Heating & Electric

4.87(
578
)
Approved Pro

Applewood Plumbing, Heating & Electric

4.87(
578
)
Approved Pro
Super Service Award
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
367 local quotes requested

We have been proudly serving Denver, Boulder and the surrounding metro areas for over 50 years! At Applewood EVERY technician is licensed, background checked & drug tested. When using Applewood customers receive a picture and short bio of the technician dispatched to their home. We will fix your problem RIGHT, the first time, at an approved, up-front price. After your appointment, we follow up with a phone call to make sure your appointment went just as you expected. We are open 6AM to 10PM, 7 days a week to serve you at your convenience with NO OVERTIME CHARGES. **Keeping you and your family safe in your home has always been our top priority. As we navigate through the COVID-19 crisis, our commitment to your health and safety remains the same.

"Great experience"

Moksha P on December 2025

We have been proudly serving Denver, Boulder and the surrounding metro areas for over 50 years! At Applewood EVERY technician is licensed, background checked & drug tested. When using Applewood customers receive a picture and short bio of the technician dispatched to their home. We will fix your problem RIGHT, the first time, at an approved, up-front price. After your appointment, we follow up with a phone call to make sure your appointment went just as you expected. We are open 6AM to 10PM, 7 days a week to serve you at your convenience with NO OVERTIME CHARGES. **Keeping you and your family safe in your home has always been our top priority. As we navigate through the COVID-19 crisis, our commitment to your health and safety remains the same.

"Great experience"

Moksha P on December 2025


Avatar for Mister Sparky Electric - Denver

Mister Sparky Electric - Denver

4.66(
155
)
Approved Pro

Mister Sparky Electric - Denver

4.66(
155
)
Approved Pro
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
55 local quotes requested

At Mister Sparky of Denver, we take pride in offering a range of electrical installation services that cater to the unique needs of Denver and Northern Colorado homeowners. Our skilled electricians provide precision and safety in every installation project we undertake. Whether upgrading lighting fixtures to transform your living space or modernizing electrical panels for enhanced efficiency, our expertise ensures that every installation is carried out with meticulous attention to detail. We understand that the foundation of a reliable and efficient electrical system lies in expert installation. That's why our professionals go the extra mile to ensure that each installation is not only technically flawless but also integrates seamlessly with your lifestyle. From the initial assessment to the final connection, we prioritize safety and functionality! Contact our team today to get started!

"Needed to revisit the property to address leaking exhaust fan install multiple times."

Forrest C on June 2024

At Mister Sparky of Denver, we take pride in offering a range of electrical installation services that cater to the unique needs of Denver and Northern Colorado homeowners. Our skilled electricians provide precision and safety in every installation project we undertake. Whether upgrading lighting fixtures to transform your living space or modernizing electrical panels for enhanced efficiency, our expertise ensures that every installation is carried out with meticulous attention to detail. We understand that the foundation of a reliable and efficient electrical system lies in expert installation. That's why our professionals go the extra mile to ensure that each installation is not only technically flawless but also integrates seamlessly with your lifestyle. From the initial assessment to the final connection, we prioritize safety and functionality! Contact our team today to get started!

"Needed to revisit the property to address leaking exhaust fan install multiple times."

Forrest C on June 2024

...
Showing 1-10 of 1040
FAQs for electrical wiring or panel upgrade projects in Centennial, CO

While homeowners with substantial electrical knowledge might technically attempt a subpanel installation, most local building departments require permits and inspections for this type of work. Professional electricians understand local code requirements, can obtain necessary permits, and ensure the installation meets safety standards. Given the significant safety risks associated with incorrect electrical work, most homeowners benefit from hiring a licensed professional.

A standard subpanel installation takes an average of four to eight hours. This timeframe may extend if you're installing multiple subpanels or adding specialized circuits like those for spa equipment. Factors such as difficult access points, complex wiring paths, or permit processing times can also affect the overall project duration.

Adding a subpanel doesn't directly reduce electricity consumption or lower your utility bills. A subpanel simply redistributes power from your main panel to additional circuits. However, organizing your electrical system more efficiently may help prevent overloaded circuits and the associated problems. For actual cost savings, consider energy-efficient appliances and lighting instead.

The appropriate subpanel size depends on your specific electrical requirements. Consider the number and type of devices you'll be powering, potential future needs, and the capacity of your main electrical panel. An electrician can perform a load calculation to determine the most suitable amperage rating for your situation, ensuring you have adequate power without overpaying for unnecessary capacity.

A main electrical panel connects directly to your utility's power supply and contains your home's primary service disconnect. It distributes electricity throughout your entire house. A subpanel, by contrast, receives power from the main panel and redistributes it to a specific area of your home. Think of the main panel as the primary distribution point and the subpanel as a secondary branch that extends your electrical system's reach.

While electrical upgrades aren't as immediately visible as kitchen or bathroom renovations, they can contribute to your home's functionality and safety. Prospective buyers often appreciate updated electrical systems that can accommodate modern power demands. A properly installed subpanel that provides additional capacity for workshops, home offices, or future expansions could be an attractive feature for certain buyers, though the direct impact on home value varies by market.

The Centennial, 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.