Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in your area

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.

Addition to existing structure builders in Auburn Hills

Avatar for Tower Built
Tower Built
52975 Van Dyke Ave Suite 302
New on HomeAdvisorNew on Angi
Approved Pro
Tower Built
52975 Van Dyke Ave Suite 302
New on AngiNew on HomeAdvisor
Approved Pro
6 years of experience
Free onsite estimate

We take great pride in our over 25 years of experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from 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 customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our over 25 years of experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship, and complete customer satisfaction from 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 customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


Avatar for Allshire Building, LLC
Allshire Building, LLC
280 N. Old Woodward Avenue Suite 100
4.76(
23
)
Approved Pro
Allshire Building, LLC
280 N. Old Woodward Avenue Suite 100
4.76(
23
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
8 years of experience

At Allshire Building LLC, we pride our company on reliability, 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 project. We look forward to earning your business!

"I recommend Allshire highly and without reservation. Russ, John, and all their crews were professional and we felt comfortable throughout the process. Our bathroom was fully gutted and rebuilt (with same footprint) - the end result was fantastic and I believe the value was very high. Just to make others aware - we had a fair amount of back and forth with the inspectors from our township and had several hardware items delivered to our house that were broken so they had to be re-ordered - so job took longer than we (and Allshire) expected. That said, the company has many positive attributes: 1) communication is solid 2) attitude is positive and professional 3) final workmanship very high 4) pricing very reasonable 5) overall demeanor is friendly and flexible which is what we wanted. We will call them again when we get ready to remodel our kitchen. Allshire is a good company because it is made of good people."

Tom B on November 2023

At Allshire Building LLC, we pride our company on reliability, 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 project. We look forward to earning your business!

"I recommend Allshire highly and without reservation. Russ, John, and all their crews were professional and we felt comfortable throughout the process. Our bathroom was fully gutted and rebuilt (with same footprint) - the end result was fantastic and I believe the value was very high. Just to make others aware - we had a fair amount of back and forth with the inspectors from our township and had several hardware items delivered to our house that were broken so they had to be re-ordered - so job took longer than we (and Allshire) expected. That said, the company has many positive attributes: 1) communication is solid 2) attitude is positive and professional 3) final workmanship very high 4) pricing very reasonable 5) overall demeanor is friendly and flexible which is what we wanted. We will call them again when we get ready to remodel our kitchen. Allshire is a good company because it is made of good people."

Tom B on November 2023


Avatar for Diamond Developments, LLC
Diamond Developments, LLC
40736 Kingsley Lane
5.00(
12
)
Approved Pro
Diamond Developments, LLC
40736 Kingsley Lane
5.00(
12
)
Approved Pro
Customers say: Quick response
29 local quotes requested
5 years of experience

Hi, I’m Paul Livernois, President of Diamond Developments. Thank you for considering us for your project! To be sure you are choosing the RIGHT company for your remodel, please take a moment to read the "about us" below: We are a growing design and build remodeling firm in Oakland County. We specialize in the design and build of custom kitchens, baths, basements and whole house remodels. Our specialty lies in full gut, down-to-the-studs, rebuild it right construction with the guidance of our Certified Interior Designer and Licensed General Contractor at the helm, giving you a 5 STAR EXPERIENCE and results. If you are looking for a FULL SERVICE experience with every detail carefully choreographed with your style and desired "feel" as our guide, then Diamond Developments LLC is the right company for you! We look forward to hearing from you soon. Call, text or email any time so we can start the process to making your dream space a reality! www.DiamondDevelopmentsLLC.com

"We hired Paul, Justin and Anthony to tear out and replace our master bathroom shower and floor. They were professional, friendly, clean and their attention to detail was top notch. The workmanship is incredible and the shower and floor are beautiful. They were extremely pleasant and guided us through every step of the process. I would hire them again without hesitation. We highly recommend Diamond Developments!!"

Kimberly S on April 2023

Hi, I’m Paul Livernois, President of Diamond Developments. Thank you for considering us for your project! To be sure you are choosing the RIGHT company for your remodel, please take a moment to read the "about us" below: We are a growing design and build remodeling firm in Oakland County. We specialize in the design and build of custom kitchens, baths, basements and whole house remodels. Our specialty lies in full gut, down-to-the-studs, rebuild it right construction with the guidance of our Certified Interior Designer and Licensed General Contractor at the helm, giving you a 5 STAR EXPERIENCE and results. If you are looking for a FULL SERVICE experience with every detail carefully choreographed with your style and desired "feel" as our guide, then Diamond Developments LLC is the right company for you! We look forward to hearing from you soon. Call, text or email any time so we can start the process to making your dream space a reality! www.DiamondDevelopmentsLLC.com

"We hired Paul, Justin and Anthony to tear out and replace our master bathroom shower and floor. They were professional, friendly, clean and their attention to detail was top notch. The workmanship is incredible and the shower and floor are beautiful. They were extremely pleasant and guided us through every step of the process. I would hire them again without hesitation. We highly recommend Diamond Developments!!"

Kimberly S on April 2023


Avatar for James Hill
James Hill
457 Mill Street
5.00(
1
)
Approved Pro
James Hill
457 Mill Street
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 years of experience

Thanks for choosing James Hill. James and his team are experts when it comes to residential and commercial construction. His reputation for quality work, responsiveness, and competitive pricing has been the primary factor in his success. James is committed to client satisfaction in which he serves the client from the developmental stages of a project to final completion.

"James Hill is a very conscientious, very committed guy, and very easy to work with. I would recommend them to anyone."

Kevin K on June 2016

Thanks for choosing James Hill. James and his team are experts when it comes to residential and commercial construction. His reputation for quality work, responsiveness, and competitive pricing has been the primary factor in his success. James is committed to client satisfaction in which he serves the client from the developmental stages of a project to final completion.

"James Hill is a very conscientious, very committed guy, and very easy to work with. I would recommend them to anyone."

Kevin K on June 2016


Avatar for Master Builders, LLC
Master Builders, LLC
392 Prairie
4.93(
7
)
Approved Pro
Master Builders, LLC
392 Prairie
4.93(
7
)
Approved Pro
Customers say: Quality work
18 local quotes requested
13 years of experience

MasterBuilders LLC is a Michigan based fully licensed and insured residential building company. We specialize in residential construction, including; open floor plans, single and multi-room renovations, additions, basement remodels and custom new home construction. We have a professional team of experienced contractors ready to go. In addition, we can assist you in a design with experienced, licensed architect and designer on staff. Give us your ideas and we can make your dream home a reality. Please call or email to discuss your ideas and budget.

"Love my new deck!"

Heather P on April 2025

MasterBuilders LLC is a Michigan based fully licensed and insured residential building company. We specialize in residential construction, including; open floor plans, single and multi-room renovations, additions, basement remodels and custom new home construction. We have a professional team of experienced contractors ready to go. In addition, we can assist you in a design with experienced, licensed architect and designer on staff. Give us your ideas and we can make your dream home a reality. Please call or email to discuss your ideas and budget.

"Love my new deck!"

Heather P on April 2025


Avatar for Innovative Home Solution
Innovative Home Solution
5644 Scotten St
5.00(
1
)
Approved Pro
Innovative Home Solution
5644 Scotten St
5.00(
1
)
Approved Pro
16 local quotes requested
1 years of experience

We are 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 customers' interests, and make their concerns the basis of our business.

"Great and quick work. The team and Manny did amazing professional work and covered all my floors and did not damage the house at all. They else quick and have fair pricing. "

gary k on March 2025

We are 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 customers' interests, and make their concerns the basis of our business.

"Great and quick work. The team and Manny did amazing professional work and covered all my floors and did not damage the house at all. They else quick and have fair pricing. "

gary k on March 2025


Avatar for Frazer Building and Construction, Inc.
Frazer Building and Construction, Inc.
4827 Gratiot Avenue
4.82(
57
)
Approved Pro
Frazer Building and Construction, Inc.
4827 Gratiot Avenue
4.82(
57
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 local quotes requested

Frazer Building and Construction, Inc. has been proudly family-owned and operated since 2003. Our office is based in the beautiful city of Marysville, Michigan. We service most of Southeast Michigan into the thumb region. Although most of our clients are located in the St. Clair and Northern Macomb County areas, we do not limit ourselves to any particular locale.

"Went above and beyond with no extra charge."

Penny C on April 2023

Frazer Building and Construction, Inc. has been proudly family-owned and operated since 2003. Our office is based in the beautiful city of Marysville, Michigan. We service most of Southeast Michigan into the thumb region. Although most of our clients are located in the St. Clair and Northern Macomb County areas, we do not limit ourselves to any particular locale.

"Went above and beyond with no extra charge."

Penny C on April 2023


Avatar for DeWeese & Associates, LLC
DeWeese & Associates, LLC
PO Box 571
4.65(
17
)
Approved Pro
DeWeese & Associates, LLC
PO Box 571
4.65(
17
)
Approved Pro
Customers say: Quality work
20 local quotes requested
18 years of experience

Make DeWeese & Associates your one stop shop for all your remodel and new construction needs. With our years of experience, quality craftsmanship, and use of only the best products, we take pride in being the best at what we do. From custom home builds, to room additions, there is no project too big or too small. So stop shopping around, and give us a call today, for your free estimate. Let us turn your project dreams into reality!

"Brett DeWeese and his contractors have been amazing! Brett kept us well informed of the contractors and when they would be out. The contractors were very professional and so helpful. DeWeese & Associates did an outstanding job on our basement/bath renovation and we plan on using them again to install an under deck drainage system/ceiling, so we can transform the space into a req room."

Heather C on June 2023

Make DeWeese & Associates your one stop shop for all your remodel and new construction needs. With our years of experience, quality craftsmanship, and use of only the best products, we take pride in being the best at what we do. From custom home builds, to room additions, there is no project too big or too small. So stop shopping around, and give us a call today, for your free estimate. Let us turn your project dreams into reality!

"Brett DeWeese and his contractors have been amazing! Brett kept us well informed of the contractors and when they would be out. The contractors were very professional and so helpful. DeWeese & Associates did an outstanding job on our basement/bath renovation and we plan on using them again to install an under deck drainage system/ceiling, so we can transform the space into a req room."

Heather C on June 2023


Lifestyle Custom Homes LLC DBA Lifestyle Building and Renovation
2995 St. Jude Drive
New on HomeAdvisorNew on Angi
Approved Pro
Lifestyle Custom Homes LLC DBA Lifestyle Building and Renovation
2995 St. Jude Drive
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

Our happy and satisfied customers recommend us to their friends and family all the time. We are proud of our reputation and we feel it has been well earned. We are also happy that we can help you feel good knowing that you are working with a reputable company that stands behind its products and services.

Our happy and satisfied customers recommend us to their friends and family all the time. We are proud of our reputation and we feel it has been well earned. We are also happy that we can help you feel good knowing that you are working with a reputable company that stands behind its products and services.


Avatar for Renaissance Restorations, Inc.
Renaissance Restorations, Inc.
211 East Merrill Street, Suite 507
4.93(
14
)
Approved Pro
Renaissance Restorations, Inc.
211 East Merrill Street, Suite 507
4.93(
14
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 local quotes requested

Renaissance Restorations Inc. specializes in additions of throughout all of SE Michigan. The spectrum includes standard projects such as Master bedroom suites, in-law suites, family rooms etc. as well as kitchen & bath renovations, finished basements, porches, masonry, windows, siding and interior renovations. As a registered member of the Michigan Historic Preservation Network, Renaissance Restorations has the experience and proven track record to meet any and all of your needs from a single job, to an entire gut rehabilitation of a property. Call now for a free estimate 313-585-7852. Check out our website @www.rrestoration.com.

"The owner Jamie is very understanding and very helpful. Always answer my calls or call me back. His communication skills was great and whatever I needed he got it for us. He did a great job. I appreciate it."

Gregory M on March 2024

Renaissance Restorations Inc. specializes in additions of throughout all of SE Michigan. The spectrum includes standard projects such as Master bedroom suites, in-law suites, family rooms etc. as well as kitchen & bath renovations, finished basements, porches, masonry, windows, siding and interior renovations. As a registered member of the Michigan Historic Preservation Network, Renaissance Restorations has the experience and proven track record to meet any and all of your needs from a single job, to an entire gut rehabilitation of a property. Call now for a free estimate 313-585-7852. Check out our website @www.rrestoration.com.

"The owner Jamie is very understanding and very helpful. Always answer my calls or call me back. His communication skills was great and whatever I needed he got it for us. He did a great job. I appreciate it."

Gregory M on March 2024

...
Showing 1-10 of 935

Addition to existing structure building services FAQs

How far you can push a room depends on the structure you choose. A cantilevered bump-out can extend 24 inches before building codes require its own footing or foundation. Anything longer needs engineered support and a permit. Check local codes or consult with a structural professional before finalizing plans to ensure your design remains safe and compliant.

Most bump-outs are completed within one to four weeks, even with minimal electrical, plumbing, or HVAC work. Their compact size means less demolition, simpler inspections, and fewer weather-related delays compared to a full-scale addition. Your contractor can provide a more precise timeline once they have determined the scope, materials, and permit schedule, but plan on having the extra square footage ready in approximately a month.

The 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.
Kitchen view leading into dining area
Apr 28, 2025
Apr 28, 2025
Use this guide to budget for bump-out addition costs based on factors such as room size, room type, labor, finishes, permits, and more.
House roof with nice window
Apr 28, 2025
Apr 28, 2025
Budget for dormer addition costs based on factors such as roof type, framing, customizations, reinforcement, cladding, labor, and more.
newly installed kitchen countertops in modern kitchen
Apr 26, 2025
Apr 26, 2025
Need to replace your kitchen countertop? Here’s how much it costs, what factors affect cost, and what to expect.
house with new addition built on
Apr 25, 2025
Apr 25, 2025
Planning a home addition? Discover what to expect during the process, including design choices, permits, construction timelines, and key factors that impact your project’s success.
BRIGHT OPEN ATTIC SPACE
Apr 24, 2025
Apr 24, 2025
An in-law suite is a great solution for people who have family visiting often. Explore how much an in-law suite costs and prep to build yours.
A white wood ceiling
Apr 23, 2025
Apr 23, 2025
Looking to vault a ceiling? Here’s how much it costs, what factors affect cost, and what to expect.
Share project details to get started.