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Find Addition to existing structure builders in O Fallon

Matt Hawkins Construction

5.00(
2
)
Approved Pro

Matt Hawkins Construction

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"High quality work, very responsive, good guys."

Mike S on March 2020

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest.

"High quality work, very responsive, good guys."

Mike S on March 2020


Avatar for StudioMarq, LLC

StudioMarq, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

StudioMarq, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
23 local quotes requested
2 years of experience

At StudioMarq LLC we make dreams come true. With over 30 years of experience, this phrase has become more than a catchy slogan. It's simply the way we do business. StudioMarq LLC does everything from custom home building and remodeling to small commercial build outs. We offer quality, professionalism and competitive pricing for every job, regardless of project size. Customer satisfaction is our primary goal. StudioMarq LLC looks forward to making your dream a reality.

At StudioMarq LLC we make dreams come true. With over 30 years of experience, this phrase has become more than a catchy slogan. It's simply the way we do business. StudioMarq LLC does everything from custom home building and remodeling to small commercial build outs. We offer quality, professionalism and competitive pricing for every job, regardless of project size. Customer satisfaction is our primary goal. StudioMarq LLC looks forward to making your dream a reality.


Avatar for Kimberlin Construction Co Inc

Kimberlin Construction Co Inc

4.97(
34
)
Approved Pro

Kimberlin Construction Co Inc

4.97(
34
)
Approved Pro
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
25 local quotes requested

Kimberlin Construction is a diverse company that specializes in interior and exterior projects such as, kitchen and bath remodels, room additions, floors, decks, concrete work and any repair on your home. The owner spends one on one time with the client and is able to find the best and most affordable way to take care of any project!

"Great! Kimberlin Construction Company is the best. This is the most recent project we had done by them. As always they did a great job. Showed up when they said they would. Great crew and excellent craftsmanship. This is the fourth project we had done by them and we will definitely hire them again in the future. Best contractor we have ever worked with."

Lawrence M on October 2023

Kimberlin Construction is a diverse company that specializes in interior and exterior projects such as, kitchen and bath remodels, room additions, floors, decks, concrete work and any repair on your home. The owner spends one on one time with the client and is able to find the best and most affordable way to take care of any project!

"Great! Kimberlin Construction Company is the best. This is the most recent project we had done by them. As always they did a great job. Showed up when they said they would. Great crew and excellent craftsmanship. This is the fourth project we had done by them and we will definitely hire them again in the future. Best contractor we have ever worked with."

Lawrence M on October 2023


Avatar for Norse Construction, LLC

Norse Construction, LLC

4.62(
50
)
Approved Pro

Norse Construction, LLC

4.62(
50
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
10 local quotes requested

Norse Construction, LLC is a unique small business. Over my 30 plus years of construction I've had numerous customers tell me of contractors who don't show up, don't clean up after themselves, build what THEY want and NOT what the homeower wants. Its simple. I started Norse simply because you should have what YOU want and when you want it - period.

"Bruce and his crew finished over 1000 sqft of basement for my family, including a wet bar, 3/4 bath, game room and family room. I cannot say enough about how great it was to work with them. From the minute Bruce walked in our house to give us an estimate, we knew he would be the one for the job. He had a great personality, understood what we wanted to do and was up front about cost, timing, any limitations, etc-- we could just tell that it would be easy to work with him. Bruce's son, David, did most of the woodwork. He did a fantastic job of duplicating the staircase from our main floor (we happened to also have leftover spindles). He also created a custom built-in bookcase as well as worked with standard cabinetry to make custom-looking bookshelves in our bar. We really trusted that if he said he could do something, he could-- and he did! What we really appreciated was the work ethic-- when they said they were going to be here, they were here. They were always here around 8/8:30 and put in a full day's work, unlike other contractors we've dealt with in the past. The sub contractors that Bruce works with (HVAC, flooring, plumbing, etc) were all punctual and responsible and were also here when they were supposed to be. Because of this, when quoted 3 month from start to finish, they were spot on! They started our basement at the end of April, and were finished mid-July. The project was not without its set-backs or errs, but whenever we brought something to Bruce's attention, it was remedied promptly and without question. All in all, for major construction, this was the most pleasant project we've ever had completed and would recommend Norse in a heartbeat."

Cheryl G on December 2022

Norse Construction, LLC is a unique small business. Over my 30 plus years of construction I've had numerous customers tell me of contractors who don't show up, don't clean up after themselves, build what THEY want and NOT what the homeower wants. Its simple. I started Norse simply because you should have what YOU want and when you want it - period.

"Bruce and his crew finished over 1000 sqft of basement for my family, including a wet bar, 3/4 bath, game room and family room. I cannot say enough about how great it was to work with them. From the minute Bruce walked in our house to give us an estimate, we knew he would be the one for the job. He had a great personality, understood what we wanted to do and was up front about cost, timing, any limitations, etc-- we could just tell that it would be easy to work with him. Bruce's son, David, did most of the woodwork. He did a fantastic job of duplicating the staircase from our main floor (we happened to also have leftover spindles). He also created a custom built-in bookcase as well as worked with standard cabinetry to make custom-looking bookshelves in our bar. We really trusted that if he said he could do something, he could-- and he did! What we really appreciated was the work ethic-- when they said they were going to be here, they were here. They were always here around 8/8:30 and put in a full day's work, unlike other contractors we've dealt with in the past. The sub contractors that Bruce works with (HVAC, flooring, plumbing, etc) were all punctual and responsible and were also here when they were supposed to be. Because of this, when quoted 3 month from start to finish, they were spot on! They started our basement at the end of April, and were finished mid-July. The project was not without its set-backs or errs, but whenever we brought something to Bruce's attention, it was remedied promptly and without question. All in all, for major construction, this was the most pleasant project we've ever had completed and would recommend Norse in a heartbeat."

Cheryl G on December 2022


Avatar for Coach House Garages

Coach House Garages

4.88(
92
)
Approved Pro

Coach House Garages

4.88(
92
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
156 local quotes requested

WE BUILD CUSTOM GARAGES DESIGNED TO FIT YOUR LIFE, BUDGET, AND DREAMS At Coach House, our buildings are more than just garages and sheds. By combining your imagination with our experience built from generations of Amish craftsmanship and the finest quality materials, we can build you a garage that fits all of your specifications at a budget you can live with. All with a warranty that cannot be matched by any other garage builder… Whether you have a particular design in mind — or you’re just beginning to dream about having more space —Coach House can help your dream come true. Garages, Garden Sheds, Guest Houses, Man Caves, She Sheds, Barndominiums, Pool Houses Workshops, Home Offices… A Coach House Garage is an extension of your life, whether it’s a structure for your vehicles, a space for your hobby, a playroom for your children, or a sanctuary from the outside world, we understand the impact and importance your Coach House will have in your life. You want a building that compliments and enhances your home, and brings value for years to come. You can count on your Coach House team to listen to your needs, and create the perfect building to fit your unique vision.

"Yes yes Great job"

Paul L on December 2025

WE BUILD CUSTOM GARAGES DESIGNED TO FIT YOUR LIFE, BUDGET, AND DREAMS At Coach House, our buildings are more than just garages and sheds. By combining your imagination with our experience built from generations of Amish craftsmanship and the finest quality materials, we can build you a garage that fits all of your specifications at a budget you can live with. All with a warranty that cannot be matched by any other garage builder… Whether you have a particular design in mind — or you’re just beginning to dream about having more space —Coach House can help your dream come true. Garages, Garden Sheds, Guest Houses, Man Caves, She Sheds, Barndominiums, Pool Houses Workshops, Home Offices… A Coach House Garage is an extension of your life, whether it’s a structure for your vehicles, a space for your hobby, a playroom for your children, or a sanctuary from the outside world, we understand the impact and importance your Coach House will have in your life. You want a building that compliments and enhances your home, and brings value for years to come. You can count on your Coach House team to listen to your needs, and create the perfect building to fit your unique vision.

"Yes yes Great job"

Paul L on December 2025


Avatar for STLBuildPro

STLBuildPro

4.63(
62
)
Approved Pro

STLBuildPro

4.63(
62
)
Approved Pro
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
28 local quotes requested

STLBuildPro consists of two contracting companies: Carrera Exteriors LLC and Carrera Plaster Restoration LLC. We focus on customer satisfaction by providing a combination of services with excellent value and integrity. We are experienced in insurance claims and we work with insurance companies.

"They did a solid job and were a pleasure to deal with. Very professional."

Curtis H on October 2023

STLBuildPro consists of two contracting companies: Carrera Exteriors LLC and Carrera Plaster Restoration LLC. We focus on customer satisfaction by providing a combination of services with excellent value and integrity. We are experienced in insurance claims and we work with insurance companies.

"They did a solid job and were a pleasure to deal with. Very professional."

Curtis H on October 2023


Avatar for F.R. Young Homes

F.R. Young Homes

5.00(
3
)
Approved Pro

F.R. Young Homes

5.00(
3
)
Approved Pro
1 years of experience
Warranties offered

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"I live with my daughter Samantha and she hired FRYoung Homes to install a fence in her yard. It was a very challenging project with being on uneven land and tree roots. But FRYoung Homes employees showed up every morning at 7 and stayed thru 4 even when it was 100 degrees. They communicated with us in every possible way! They showed up! Which in that business means a lot!! They cleaned up their mess! And they did a great job! They let me take pictures and videos so I could keep Samantha updated!! I highly recommend them! "

Leslie W on September 2025

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"I live with my daughter Samantha and she hired FRYoung Homes to install a fence in her yard. It was a very challenging project with being on uneven land and tree roots. But FRYoung Homes employees showed up every morning at 7 and stayed thru 4 even when it was 100 degrees. They communicated with us in every possible way! They showed up! Which in that business means a lot!! They cleaned up their mess! And they did a great job! They let me take pictures and videos so I could keep Samantha updated!! I highly recommend them! "

Leslie W on September 2025


Avatar for Swenson Builders LLC

Swenson Builders LLC

5.00(
1
)
Approved Pro

Swenson Builders LLC

5.00(
1
)
Approved Pro

Here at Swenson Builders LLC we are family owned & operated with over 20 years of experience. We take great pride in our 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 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 client in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job we will treat your home as we would treat our own. Give Swenson Builders LLC a call today, We look forward to working with you!

Here at Swenson Builders LLC we are family owned & operated with over 20 years of experience. We take great pride in our 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 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 client in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job we will treat your home as we would treat our own. Give Swenson Builders LLC a call today, We look forward to working with you!


Avatar for RBM Construction

RBM Construction

4.93(
7
)
Approved Pro

RBM Construction

4.93(
7
)
Approved Pro
Customers say: Quality work
40 years of experience
Free onsite estimate

As a family-owned business with decades of experience serving the St. Louis area, we specialize in delivering high-quality home remodels that reflect your unique vision. We’re proud to be the parent company of Timber Classic Cabinetry, expanding our services beyond custom cabinetry solutions you already trust. RBM Construction is here to provide exceptional craftsmanship and personalized service every step of the way.

"Excellent work. My new patio was installed better than I would have hoped. Installed on time at reasonable cost."

Robert M on December 2021

As a family-owned business with decades of experience serving the St. Louis area, we specialize in delivering high-quality home remodels that reflect your unique vision. We’re proud to be the parent company of Timber Classic Cabinetry, expanding our services beyond custom cabinetry solutions you already trust. RBM Construction is here to provide exceptional craftsmanship and personalized service every step of the way.

"Excellent work. My new patio was installed better than I would have hoped. Installed on time at reasonable cost."

Robert M on December 2021


Mueller Contracting LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Mueller Contracting LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
2026 years of experience
Free onsite estimate

We are a small, family based company that provides excellent communication, and excellent work. We have a high attention to detail. We would be appreciative of your work. We have been in the construction industry for 20 years. We can provide select demolition, small structural demolition, and clean up services.

We are a small, family based company that provides excellent communication, and excellent work. We have a high attention to detail. We would be appreciative of your work. We have been in the construction industry for 20 years. We can provide select demolition, small structural demolition, and clean up services.

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FAQs for addition to existing structure building service projects in O Fallon, MO

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The O Fallon, MO homeowners’ guide to addition to existing structure building services

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