MainService Corp

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About

I’m a professional since 2009, worked in many project and construction. I’m Electric Engineer and technical on that field. I’m ready to hear your needs and help you honestly get things done throughout technical skill and good communication. Text me … I’ll reply asap! Speak English, Spanish and Portuguese. Tks Frederick Pereira

Overview

Hired 44 times

Background checked

4 employees

2 years in business

Business hours

Sun6:00 am - 11:59 pmMon1:00 pm - 11:59 pm

Payment methods

This pro accepts payments via Cash and Zelle.

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

2024

Services offered

Work needed

Install switch or outlet

Replace switch or outlet

Move switch or outlet

Other

Existing wiring

Yes

Property type

House

Condo/Apartment

Townhouse

Business

Projects and media

Reviews

Customers rated this pro highly for professionalism, work quality, and responsiveness.

Great 4.8

24 reviews

5

88%

4

0%

3

12%

2

0%

1

0%

Read reviews that mention:

Danny C.

Nov 15, 2025

•

Hired on Thumbtack

I recently hired Frederick Pereira to install a 240V charger for my electric vehicle, and I can honestly say the entire experience was outstanding from start to finish. Frederick is one of the most skilled and reliable electricians I have ever worked with. From the moment I contacted him, he was incredibly responsive—faster than anyone else I reached out to. His communication alone puts him in a whole different category compared to other electricians I’ve dealt with. When Frederick arrived, he was on time, professional, and very friendly. He took the time to walk me through everything he was going to do with the EV charger installation and explained things in a way that made sense. You can immediately tell he knows exactly what he’s doing. The 240V charger was installed cleanly, correctly, and efficiently. He double-checked all the connections, tested everything thoroughly, and made sure the charger was working perfectly before he left. The level of care and attention to detail he brings is rare today. What impressed me even more was how fair and reasonable his pricing was. I had spoken to several electricians before choosing him, and Frederick’s price was easily the best—yet the quality of his work far exceeded what others were offering. There were no hidden costs, no unnecessary upsells, and no pressure. Just honest, upfront pricing from someone who truly takes pride in his craft. Throughout the entire job, Frederick was polite, respectful, and genuinely pleasant to work with. He treated my home carefully, cleaned up after the installation, and made the whole process completely stress-free. It’s not often you find an electrician who is highly skilled, extremely responsive, very nice, and also the most reasonably priced—but Frederick is all of that and more. If you need any electrical work done—whether it’s an EV charger installation like mine or anything else—I highly recommend Frederick Pereira. He exceeded every expectation I had, and I will absolutely be calling him again for future projects. Finding someone this dependable and professional is rare, and I’m truly grateful for the excellent work he did.

Details: EV charger • Over 14 feet (lofty ceiling) • House

Electrical and Wiring Repair

ANGIE B.

Jul 6, 2025

•

Hired on Thumbtack

Mainservice came out and gave a professional assessment of my situation. I didn’t have work done because my home is old and too many electrical needs for my budget. Thanks MainService for your professional attention and advisement.

Details: Install switch or outlet • 2 switches or outlets • Rooms without water access, like a bedroom • Drywall • Townhouse

Switch and Outlet Installation

Paul K.

Jun 27, 2025

•

Hired on Thumbtack

Fred was on-time, well equipped, and a trained professional. Completed all work required in a fast, efficient and proper manner. Well done!

Details: Replacement of existing lighting • 2-4 lights • 8 - 10 feet (standard ceiling) • Indoors • Existing property • Condo or apartment

Lighting Installation

Eric C.

Feb 16, 2025

•

Hired on Thumbtack

Thank you for the excellent work! The outlets work great! I appreciate you cleaning up the jobsite prior to leaving!

Details: Installation • 1 switch or outlet • House

Switch and Outlet Repair

Benjamin W.

Jun 3, 2025

•

Hired on Thumbtack

Showed up quickly however, he did not know exactly what to do in the beginning and went by trial and error method. It was to fix one outlet but ended up messing other ones up to then have to fix them. Wouldn’t give a quote upfront and then upon leaving gave the price of $265. This is crazy as actual licensed electricians quoted me $125. Wish I would have waited until tomorrow when they could have come.

Details: Yes, there is existing wiring • Replace switch or outlet • 1 switch or outlet • Rooms with water access, like the kitchen • Drywall • House

Switch and Outlet Installation

Credentials

Background Check

Frederick Eneias Pereira

MainService Corp

About

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