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Sky Roofing

Cobex Construction Group

Your 5 Star Sacramento Roofing Contractor

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Cobex Roofs

Sky Roofing

Roofing is the largest single project a home can go through. Roofing is something that we pride ourselves on, especially because we are able to offer lifetime solutions for your roofing needs. With our years of experience and quality products, you can be confident you are in good hands. 

Roseville Roofing Company

Owens Corning Shingles

Owens Corning® Total Protection Roofing System® – An integrated system of components and layers designed to help a roof perform in three critical areas: SEAL. DEFEND. BREATHE.®

50 year warranties

There are a few different roofing variations you can choose from. 

Metal Roofs

Metal

The Most durable and the Most energy efficient. It is also available in many different shapes. 50 Year Warranty. 

Composite Roofs

Composite

Composite Roofs are perfect for getting a balanced roof. It is Cool Roof rated and the most cost effective roofing solution. 50 Year Warranty. 

Flat and Low Slope Roofs

Great for flat roofs, and Commercial Jobs. Energy Efficient and 25 year warranty. 

Silicone Roofs

Silicone

Tpo Roofs

Tpo

Energy efficient California TITLE 24 Rated

See how much more money you can save when combining your roof with a solar project.

View Roof and Solar Case Studies

Cobex Construction Group is a 5 Start Local Sacramento General Contractor and roofer. We focus on providing lifetime quality products.

Roofing Company Sacramento - Cobex Construction Group

Cobex Construction Group is a five star Local Sacramento General Contractor and roofer. We focus on providing lifetime quality products.

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503 Giuseppe Court Suite #4, Roseville CA, 95678

8153 Elk Grove Blvd #20 A5, Elk Grove, CA 95758

916.745.6699
info@cobexcg.com

LIC #1031864

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© Copyright 2025 Cobex Construction Group

David Ushakov

Content Creator

What is your favorite thing about your job?

My favorite thing about my job is that I get to come up with cool ideas every day and push myself to always show off Cobex in the best way possible.

One interesting fact about yourself

I’m a triplet.

Thomas Drobkov

Site Supervisor

What is your favorite thing about your job?

My favorite thing about my Job is the community I get to show up to everyday.

How do you integrate the concept of “family” into your job at Cobex?

I integrate the concept of family into my Job by making sure my work here is sincere and considerate.

One interesting fact about yourself

Love to snowboard

Joseph Dallakyan

Site Supervisor

Joseph’s enthusiasm for learning, friendly nature, and commitment to getting things right the first time make him an excellent fit for Cobex. Joseph ensures his team has the resources they need, maintain positive customer interactions, and assist his colleagues in tasks when time is tight.

Joseph’s adaptability, customer-focused approach, and dedication to excellence contribute significantly to his success in customer satisfaction

One interesting fact about yourself

I like to produce music in my free time.

Lucas Lee

Client Success Manager

Lucas is a Sales Representative for Cobex. He has gained significant experience and expertise in the automotive retail industry.

During 4 years in car sales, he honed his skills in customer service and product knowledge. This experience provided him with a deep understanding of various car makes and models, as well as the ability to guide customers through the buying process.

Additionally, he has built a strong network of clients and developed a keen sense for identifying customer needs and preferences, ultimately contributing to his success in the field.

In his spare time, Lucas enjoys spending quality time with family and friends.

What is your favorite thing about your job?

Making a Difference: For some, the opportunity to make a positive impact on society, the environment, or people’s lives is the most fulfilling part of a job a supportive and friendly work environment, along with good relationships with colleagues and superiors, can make a job enjoyable.

How do you integrate the concept of “family” into your job at Cobex?

Like what Dom says in the Fast n the Furious movies, “I Don’t have friends. I’ve got family.”

One interesting fact about yourself

I speak fluent Tagalog

David Leal

VP of Sales

David Leal is the VP of Sales at Cobex. For the past 4 years, has worked with countless customers helping them achieve their home improvement goals and helping our team give every customer an amazing experience.

David is passionate about Sales Leadership because creating a culture of excellence and transparency allows us to help as many people as possible while keeping at the forefront the people we serve, our customers and team members.

David has been recognized in their field for salesmen of the year 4 years in a row, setting company records, and leadership development.

In their spare time, David enjoys traveling with his wife and 3 kids, all things outdoors, and reading some great books. He currently lives in Rocklin, CA.

What is your favorite thing about your job?

Building up people.

How do you integrate the concept of “family” into your job at Cobex?

I seek to serve my team members, the way that I would serve my family.

One interesting fact about yourself

My last name is a Spanish word that means “Loyal”.

Viktor "$Vik" Karplyuk

Superintendent

Viktor Karplyuk is a Superintendent who works at Cobex. For the past 1 year, he has worked on Quality Control, Project management, and vehicle fleet management.

Viktor is passionate about construction because it’s a satisfying job to see an old run-down home turn into a solid, beautiful home.

Viktor has been recognized in his field for quality control and customer satisfaction.

In his spare time, Viktor enjoys spending time with family and going camping. He currently lives in the Greater Sacramento Area.

What is your favorite thing about your job?

Different every day.

How do you integrate the concept of “family” into your job at Cobex?

by being present with family when I’m with family focusing on work when I’m working and cutting out distractions.

One interesting fact about yourself

Love to take ICE cold swims.

Inna Khochay

Bookkeeper

Inna is a bookkeeper who works at Cobex. For the past eight months, when has worked on Accounts Receivable and is responsible for managing and maintaining accurate financial records.

Working closely with project managers and clients to ensure smooth invoicing, timely collections, and accurate reporting.

Inna is passionate about bookkeeping because she loves organization and order.

In her spare time, Inna enjoys spending quality time outdoors with her family. She currently lives in Orangevale, CA with her husband and five kids.

What is your favorite thing about your job?

It’s a great work environment!

Marina "Marina D" Dallakyan

Human Resources / Accounting

Marina Dallakyan is a Human Resources/Accounting pro who works at Cobex. 

She is passionate about people management because she enjoys developing leaders and bettering the workplace culture.

Marina has been recognized in their field for innovation, company culture, and leadership and currently working on her Bachelor’s degree.

In her spare time, Marina enjoys traveling, hiking, and volunteering at her local church. She currently lives in Fair Oaks.

What is your favorite thing about your job?

Working with a great team in a positive environment.

How do you integrate the concept of “family” into your job at Cobex?

We work together as a family unit and support one another in all aspects of our lives.

One interesting fact about yourself

I have hiked Mt. Fuji.

Timothy "Tim" Oleshko

Project Runner

Timothy Oleshko is a project runner who works at Cobex. For the past 6 months, has worked on making sure all crews are set for the rest of the job. Help the crews with errands, materials, and helping out project managers.

Timothy is passionate about construction because, I love to see the production of a roof, from start to finish also I know I will stay in this construction industry for a while.

Timothy has been recognized in their field for construction/ home renovations and graduated from high school two years ago, chasing his passion for building homes.

In their spare time, Timothy enjoys Playing basketball and listening to business podcasts. He currently lives in Sacramento California.

What is your favorite thing about your job?

Work environment.

How do you integrate the concept of “family” into your job at Cobex?

We all respect and help each other.

One interesting fact about yourself

I’m 18 and worked in construction for 6 years.

Samvel "Sam" Gambaryan

Site Supervisor

Samvel Gambaryan is a supervisor assistant who works at Cobex. For the past month, has worked on keeping customers up to date with their home improvement project, helps generate leads, and takes care of things our supervisor might not have time to get to.

Samvel is passionate about construction because he loves to improve homes and create a safe and comfortable place for people to live.

In their spare time, Samvel enjoys going to the gym, reading books, and going on adventures. He currently lives in Rancho Cordova.

What is your favorite thing about your job?

Working with customers.

How do you integrate the concept of “family” into your job at Cobex?

Treat every employee as if they were your own family.

One interesting fact about yourself

I wrestled for 5 years.

Noel Ortega

Production Liason

Noel Ortega is the Production Assistant who works at Cobex. For the past 5 years, he has worked in various departments such as sales, canvassing, customer service, and now production.

He is responsible for pulling all permits, scheduling inspections, registering warranties, and more with being the project manager’s right hand.  He is the point of contact for all of our clients once their contract is signed.

Noel is passionate about production because it’s the reason why people go with Cobex. Fulfilling the original promise and making the vision of the contract come to reality is very satisfying.

Noel has been recognized in the field for accommodating to various changes and growing. In his spare time, Noel is a Youth Pastor and spends time serving the youth of his church. He currently lives in Sacramento.

What is your favorite thing about your job?

The atmosphere and work environment.

How do you integrate the concept of “family” into your job at Cobex?

We are honest with each other and help in what we can.

One interesting fact about yourself

I have a twin brother.

Mason "Moose" Moos

Project Consultant

Mason Moos is a Project Consultant who has worked at Cobex. For the past year, he worked on a number of estimates ensuring the continued workflow of the company.

Mason is passionate about his career in roofing because it allows him the opportunity to help people.


Mason has been recognized in the field for prior accomplishments and has graduated from the FIRES Center of Excellence in Fort Sill, OK.


In his spare time, Mason enjoys going to the gym and spending time with his wife and son.

What is your favorite thing about your job?

Work-life balance and the environment.

How do you integrate the concept of “family” into your job at Cobex?

Trust in the people I work with knowing that we will help one another.

One interesting fact about yourself

I ran a Marathon in Baghdad.

Vitaliy Markevich

Project Consultant

Vitaliy Markevich is a project consultant who works at Cobex. For the past year, has worked on the sales team.

Vitaliy is passionate about exterior construction because he’s been involved with construction ever since he got out of high school and became a contractor.

Vitaliy has been recognized in the construction field for hiring and training installers and running his own crews. Installed several thousand windows and hundreds of siding projects.

In his spare time, Vitaliy enjoys athletics and combat sports. He currently lives in Sacramento, California.

What is your favorite thing about your job?

My favorite thing about this job is that it’s the lowest-stress environment that I’ve ever worked in and such great management as in Cobex is extremely rare and hard to find.

How do you integrate the concept of “family” into your job at Cobex?

Even though we all come from diverse cultural backgrounds, having similar goals and passions and working as a team unites us perfectly

One interesting fact about yourself

I got married at 20 years old and had three children by the age of 24.

Julian Mouer

Project Consultant

Julian Mouer is a Project Consultant who works at Cobex. For the past 5 years, he has worked on helping clients with all home improvement needs from small to big projects to achieve their goals on their homes.

Julian is passionate about Home Improvements because he has always been interested in construction. When in college, he was most passionate about construction, business, and helping others.

Julian has been recognized in their field for going above and beyond for customers and giving the highest quality of customer service.

In their spare time, Julian enjoys being outdoors with family and friends, going to the gym, and traveling. He currently lives in Lincoln, CA.

What is your favorite thing about your job?

Helping others.

How do you integrate the concept of “family” into your job at Cobex?

By treating my customers and co-workers as family.

One interesting fact about yourself

I have studied Civil Engineering and Criminal Justice

Alex Martinez

Project Consultant

Alex Martinez, is a dedicated project consultant within the Cobex team. Over the past year, he has collaborated with a multitude of customers, ensuring seamless progress for their home improvement projects.

Alex Martinez’s passion for the home improvement field stems from its profound impact on enhancing the lives of countless individuals.

In his spare time, Alex enjoys spending time with his family, community, and traveling. Alex currently lives in Sacramento.

What is your favorite thing about your job?

I love my job because it allows me to assist and make a positive impact on people’s lives.

How do you integrate the concept of “family” into your job at Cobex?

The company has a great atmosphere which helps with morale and productivity.

One interesting fact about yourself

I’m also passionate about real estate.

Troy "T" Knox

Client Success Manager

Troy Knox is a Project Consultant who works at Cobex. For the past 2 years, he has worked Online as an Online Sales Consultant for massive online businesses helping businesses scale to 7 and 8 figures by systemizing their sales processes and coaching sales teams.

Troy is passionate about Consulting because he truly believes the best way to sell anything is to do what is right and give the client the best client experience possible, building long-term business relationships.

Troy has been recognized in their field for exceeding expectations and building long-term relationships with his clients.

In his spare time, Troy enjoys boating and spending time with his beautiful wife Kayla and his 1-year-old daughter Bayli. He currently lives in Roseville CA.

What is your favorite thing about your job?

I love building long-term relationships with my clients

How do you integrate the concept of “family” into your job at Cobex?

I integrate the concept of family by treating my team like siblings and treating anyone I work with like an extended family, always going above and beyond expectations.

One interesting fact about yourself

I rode my bicycle across the United States. 

Michael "Mickey" Baggett

Project Consultant

Mickey Baggett is a Project Consultant who works at Cobex. In the past year, he has helped homeowners get the roof they deserve on their homes. He has also helped homeowners through the insurance claims process to receive proper coverage for their roofs.

Mickey is passionate about Project Consulting because he loves to add genuine value to homeowners and meet the needs of people around him.

In his spare time, Mickey enjoys eating great food with his fiancé — soon-to-be wife — and connecting with his community. He currently lives in Citrus Heights.

What is your favorite thing about your job?

I love that my job allows me to meet various people while also serving their needs.

How do you integrate the concept of “family” into your job at Cobex?

As I’m currently in the beginning stages of building a family of my own, my aim is to create a family atmosphere everywhere I go. Cobex has the best work environment I’ve ever been a part of and I want to provide that for the homeowners I meet on behalf of Cobex.

One interesting fact about yourself

My real name is Michael, but I go by Mickey, and I got engaged 2 days after buying my first home. 

Chris Rickon

Client Success Manager

Chris Rickon is a Project Consultant with 7 years of construction experience who works at Cobex. For the past year, I have worked on walking customers through the construction process from quote to completion.

Construction has been a passion for Chris because it is an industry that directly helps people in some of the hardest situations, and with so much misinformation out there it can be difficult to find people to trust.

Chris has been in the industry for 7 years and has been awarded multiple certifications through all facets of the industry.

In his spare time, Chris enjoys making music and being with his wife and son. He currently lives in Pilot Hill.

What is your favorite thing about your job?

The relief on people’s faces when they are finally getting their problem solved and the happiness that we can bring to customs every day.

How do you integrate the concept of “family” into your job at Cobex?

Family really is a Cobex motif. From the way that you are treated as an employee, to how customers are treated, from start to finish everyone working with Cobex is family.

One interesting fact about yourself

I was in a rock band and was signed to a music label.

Pargev Nazaryan

Project Management Intern

Pargev Nazaryan is a project management intern who works at Cobex. For the past 2 months, has worked on making sure each project goes smoothly and hassle-free for our clients.

Pargev is passionate about production because he loves helping clients turn their dreams into reality.

Pargev has been recognized in their field for his great customer service

In their spare time, Pargev enjoys snowboarding and spending time with his Family. He currently lives in Fresno

What is your favorite thing about your job?

Helping clients.

How do you integrate the concept of “family” into your job at Cobex?

At Cobex everyone is treated as family from the customers to the employees, we are all family here.

One interesting fact about yourself

I’m Armenian.

Stan German

Project Consultant

I’m a dedicated roofing consultant with a passion for excellence. With expertise honed through years of experience, I’m your go-to expert in all things roofing. My specialization lies in flat roofs, and my commitment to detail and information ensures that every solution I provide is tailored to perfection. Count on me for comprehensive guidance and a wealth of knowledge in the roofing industry.


What is your favorite thing about your job?

Helping my clients make informative home improvement decisions

Conner Wilson

Conner Wilson

Project Consultant

My name is Conner Wilson, and I work as a Project Consultant at Cobex. I am a new addition to the team and have exemplified my work ethic and passion for this company.

I am currently attending Sacramento State for my Bachelor’s Degree in Criminal Justice. I am a hard worker nonetheless and have shown my ability to be a studious and dedicated individual. In my spare time, I enjoy all outdoor activities such as mountain biking, fishing, and wakeboarding near my residence in El Dorado Hills, CA.

Norberto Diaz

Production Manager

I am passionate about being a Production Manager because I enjoy monitoring the budget and schedules, assigning tasks to crew members, and minimizing errors. In my spare time, I enjoy watching boxing, football and soccer. I also love spending time with my wife and 2 sons.

Vasiliy Starovoytov

Operations Manager

My name is Vasiliy Starovoytov, and I am an Operations Manager at Cobex. For the past few years, I have worked on hundreds of roofs. I am passionate about management because with great management comes good customer service. I have been recognized in my field for countless Leadership Excellence, and Employee of the Year awards. In my spare time, I enjoy off-roading my ATVs with my kids. I currently live in Antelope, CA, and love my small community.

Yuriy Silchuk

Project Manager

I am a Project Manager at Cobex. For the past 6 months, I have worked countless jobs involving attention to customers’ personal expectations and attention to detail. I am passionate about my project management position because it gets me to connect with customers and make their written expectations a reality. I have been recognized in my field for countless satisfied customer projects while going the extra mile to make sure customer satisfaction is at 101%. In my spare time, I enjoy being outdoors and spending time with family and friends. I currently live in the greater Sacramento Area.

Dmitriy Matushevskiy

Dmitriy "Dima" Matushevskiy

Co-Founder

Those who know Dmitriy Matushevskiy well today will attest that he is not a hard person to read. His values and priorities were carved into his character since childhood. Born in the Ukraine during a period of extreme religious persecution, his grandparents and eventually his parents were lured to the United States by the desire for freedom and opportunity. Dmitriy is inspired by the memories of what his family endured. “I remember the sacrifices and difficult times my family endured in Ukraine and continue to be motivated by their courage and resourcefulness.”

After arriving in America in 2001 as a teenager, Dmitriy was drawn to the construction trade but lacked the knowledge and expertise he needed. He was hired by two contractors to help install windows and other small projects. In both cases, these people refused to pay him. But he didn’t let that disappointment sour him on construction. He knew then that it was how he wanted to spend his life. He found another contractor he trusted and offered to work for free if he would teach Dmitriy the trades. That arrangement lasted for two years and inspired a 17-year-old Dmitriy to make an offer on his first piece property in Sacramento for $25,000. He wasn’t discouraged by the fact that he didn’t have any money and spoke only broken English.

What he lacked in money and articulation, he made up for with the kind of determination and resourcefulness he had learned from his family. Dmitriy recalls, “I was young and naïve with little appreciation for the very long odds I faced. I found the property owner in Florida and convinced him to do a below-market deal. He agreed and then I was faced with the reality that I had no money to buy this property. I made up my mind that I was going to find the money no matter what and somehow, I did.” He built a duplex and sold it for a nice profit. Dmitriy was thankful for those who helped him get his start and was humbled by the good fortune that he fully attributes to divine intervention. He was so grateful, that he donated his six-figure profit to his church. “Too many unlikely events went my way that allowed that experience to bless my life. I felt compelled by my faith and the years of blessings my family enjoyed through our church community. It was the right decision.”

The crash of the real estate market in 2008 took its toll on the construction industry and Dmitriy was no exception. He was so devastated by the setback, he struggled for many months to find his next career move. He tried a few uninspiring things outside of construction and in 2010 divine intervention struck again. Dmitriy found an opportunity to do property preservation and realized this was his chance to get back into the construction game. He has been talking to his friend Sergey at church and found out that he also had an industry background. They agreed to become partners in a property preservation company which became successful and broadened the construction expertise of both men.

As the economy improved, Dmitriy dove head-first into flipping houses in Florida and new construction in California. In 2017, Dmitriy and Sergey began discussing a shared vision of creating a different kind of company that would help homeowners make improvements without the stress, dishonesty, and broken promises experienced by many. Along with another Church friend Vazgen (Vaz), Cobex was born. Dmitriy remembers, “From the first conversation, it was clear that the three of us shared the same values, vision, and goals for our new company. We committed to each other then and there to stay true to those principles.”

Dmitriy recognizes that his determination, high standards, and attention to detail lead him to be single-minded about work, even during traditional off hours. But he vows to work on that. “My wife Angelica and I have two young sons and a baby daughter. They are a loving reminder that there is more to life than work. I don’t have a lot of hobbies or outside interests but spending time with them makes me realize what is really important.”

Dmitriy reflects on his accomplishments. “My partners and I feel fortunate that we have a company focused on family. It is very rewarding to create jobs and career advancement opportunities for our family members and devoted team members. Cobex is a place where people can enjoy their work, feel
appreciated, and embrace professional development. When a customer gives us a positive review, we all share in the moment. As owners, we are mindful of how blessed we are and devoted to sharing those blessings with others.”

Vazgen Dallakyan

Vazgen Dallakyan

Co-founder and CEO

Vazgen Dallakyan is the co-founder and CEO at Cobex. For the past 6 years, Vazgen has worked on business development for Cobex from Sales and Marketing to technology and operations.

Vazgen is recognized for his innovation in marketing and technology implementation for Cobex.

He is an Alumni graduate of Sacramento State College where he earned his Bachelors in Kinesiology and exercise science. In his spare time, Vazgen enjoys spending time with his 3 young children and wife, traveling, and creating new experiences together.


What is your favorite thing about your job?

What I enjoy most about my work is the meaningful work we do and the value of the relationships with my employees and our customers.

How do you integrate the concept of “family” into your job at Cobex?

The concept of family is to love and respect each other. To treat each other with consideration and to put others ahead of ourselves. A strong family consists of trust and respect for each other. At Cobex we treat each other as family and we treat our customers as our extended family.

One interesting fact about yourself

I climbed Mount Fiji.

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  • Patio
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