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Superior Group LLC

Licensed
Licensed

Fixture type

It’s free, with no obligation to book


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About
We are a family owned and operated company. Bill Mazowski is a former Building Inspector that was certified in Building, Mechanical, Plumbing, Electrical and Plan Review for 14 years in State and local government agencies. We believe in expert workmanship with very fair and up-front pricing. We are a positive energy company that only wants positive client to contact us! It is very important that are clients are very upbeat and positive or frankly we would not be interested any negative.
Overview

Serves Arvada, CO

Background checked

License verified

3 employees

33 years in business

Business hours

SunClosedMon5:00 am - 7:00 pm

Payment methods

This pro accepts payments via Cash, Check, Venmo, and Zelle.

Credentials

License verified

Electrical Contractor

License state: CO

Background checked

Passed by William Mazowski on Aug 2, 2025.

Services offered
Fixture type
Ceiling height

Under 8 feet

8 - 10 feet

10 - 14 feet

Over 14 feet

Property type

House

Condo/Apartment

Townhouse

Business

Projects and media
Projects and media
Reviews

Customers rated this pro highly for value, responsiveness, and professionalism.

Exceptional 5.0

15 reviews

5

100%

4

0%

3

0%

2

0%

1

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Read reviews that mention:


pro avatar
Jorge C.

Feb 14, 2023

My parents are not too savvy on writing reviews. So I will write it for them. Their heater was pretty old and stopped working this past weekend! Bill came out on a Sunday and really was professional and the Spanish guy I forget his name was very nice.
Superior Group LLC's reply
Thank you very much for letting us service you! That is Javier! Excellent worker. I meant in in Costa Rica as my Security guard, he told me he wanted to come to the United States. I sponsored him and he did it legally. I am proud to have him here. Very hard worker, he lives with me and will be given every opportunity that this great country has to offer
pro avatar
Amy S.

Feb 13, 2023

My heater broke and was probably 40 years old? Some larger companies were charging so much money.. Found Superior Group and I can honestly can say I saved over 3000. Thanks Bill
Superior Group LLC's reply
Amy! Thank you so much for the review, and of course the work! You are a awesome customer and person. I enjoyed helping you and again thank you
pro avatar
Amber P.

Feb 2, 2023

My business has done nice exterior lighting now. Thanks Bill
Superior Group LLC's reply
Amber I am very happy you like your new exterior lighting. The 6” LEDs really made a difference around that wrap around porch! We appreciate earning your business and thank you so much for the review
pro avatar
Luis J. Garcia

Feb 7, 2023

They did an awesome lighting project. Corey is really on top of his game for 20 years old
Superior Group LLC's reply
Luis Yes, Corey is on top of his game. He’s very good for 20 years old. I’m so proud of him. I hope you like the LED wafer lights. They turned out really nice! Thank you for the work and we do appreciate the review and if there’s anything else you need, please give us a call. Thank you.
pro avatar
Malisha K.

Feb 8, 2023

I called around for a new gas furnace. Bill came out and saved me over 2k
Superior Group LLC's reply
Malisha! I’m glad we could save your money is very important for us and thank you so much for the review and we wish you the best of luck with your new furnace again thank you
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