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 Kansas City

Randy Peterson Construction
24600 S. Hunter Rd.
5.00(
1
)
Approved Pro
Randy Peterson Construction
24600 S. Hunter Rd.
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
34 years of experience

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Not only are we focused on quality work and outstanding results, we are also committed to educating our clients through our wide range of expertise, in turn creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"He has done a few jobs for me, he did insulation and framing for me."

Al S on July 2019

We are a locally owned and operated company that values honesty and integrity in all aspects of our business. Not only are we focused on quality work and outstanding results, we are also committed to educating our clients through our wide range of expertise, in turn creating a level of value unmatched by any of our competitors. We look forward to building lasting relationships with our clients and guarantee your satisfaction!

"He has done a few jobs for me, he did insulation and framing for me."

Al S on July 2019


Avatar for T.R. Harrison Contractors, Inc
T.R. Harrison Contractors, Inc
144 North 61st Street
New on HomeAdvisorNew on Angi
Approved Pro
T.R. Harrison Contractors, Inc
144 North 61st Street
New on AngiNew on HomeAdvisor
Approved Pro
9 years of experience
Free onsite estimate

T.R Harrison Contractors is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We are a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you

T.R Harrison Contractors is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We are a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you


Avatar for Kings Collective
Kings Collective
1701 East 129th Street
5.00(
8
)
Approved Pro
Kings Collective
1701 East 129th Street
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

Kings Collective is your trustworthy local solution for your remodeling needs. With a proven track record of on-time, on-budget home renovations, you can count on us to bring your vision to life. Our team is dedicated to work closely with you to determine your goals and help achieve them.

"They were very professional. Making sure we were informed and satisfied was a clear priority. The end product is spectacular!"

Scott B on December 2023

Kings Collective is your trustworthy local solution for your remodeling needs. With a proven track record of on-time, on-budget home renovations, you can count on us to bring your vision to life. Our team is dedicated to work closely with you to determine your goals and help achieve them.

"They were very professional. Making sure we were informed and satisfied was a clear priority. The end product is spectacular!"

Scott B on December 2023


Avatar for JCLC Homes, Inc.
JCLC Homes, Inc.
6525 VALLEY ROAD
New on HomeAdvisorNew on Angi
Approved Pro
JCLC Homes, Inc.
6525 VALLEY ROAD
New on AngiNew on HomeAdvisor
Approved Pro
7 years of experience
Free onsite estimate

JCLC Homes, Inc. is 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.

JCLC Homes, Inc. is 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.


Avatar for Hickok Homes
Hickok Homes
9000 W. 64th Terrace
5.00(
14
)
Approved Pro
Hickok Homes
9000 W. 64th Terrace
5.00(
14
)
Approved Pro
5 years of experience
Free onsite estimate

Hickok Homes is 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.

"This was the best experience with Hickock Homes and James in particular. His attention to detail was second to none! He was communicative and thorough to all my families needs and was available constantly! I truly don’t think another custom home builder can hold a candle to his designs. "

Kate C on May 2025

Hickok Homes is 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.

"This was the best experience with Hickock Homes and James in particular. His attention to detail was second to none! He was communicative and thorough to all my families needs and was available constantly! I truly don’t think another custom home builder can hold a candle to his designs. "

Kate C on May 2025


Avatar for Affinity Construction & Contracting, LLC
Affinity Construction & Contracting, LLC
PO Box 6705
4.79(
24
)
Approved Pro
Affinity Construction & Contracting, LLC
PO Box 6705
4.79(
24
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
37 local quotes requested

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.

"I can't say enough good things about Justin and Affinity Construction! Our project went from a wood frame RV carport 20x45 to an enclosed garage. Justin came out several times as we worked through the build plan. Affinity was covering all the bases from foundation to paint color. Justin is great to work with and goes the extra mile to ensure the customer gets what they want. Unfortunately, the city had easement issues on the build site and wouldn't allow a structure to be built. We had no other suitable location for the garage, so the project was scrapped. This is when I decided Affinity Construction would always have my business. Justin returned my deposit, and went further introducing me to other professionals he trusts to bid on the smaller side projects we were going to do while the garage was being built. The true measure of a quality company is how they react when things turn sideways and how they treat their customers when money is no longer changing hands. 10 stars!!"

Michael W on August 2024

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.

"I can't say enough good things about Justin and Affinity Construction! Our project went from a wood frame RV carport 20x45 to an enclosed garage. Justin came out several times as we worked through the build plan. Affinity was covering all the bases from foundation to paint color. Justin is great to work with and goes the extra mile to ensure the customer gets what they want. Unfortunately, the city had easement issues on the build site and wouldn't allow a structure to be built. We had no other suitable location for the garage, so the project was scrapped. This is when I decided Affinity Construction would always have my business. Justin returned my deposit, and went further introducing me to other professionals he trusts to bid on the smaller side projects we were going to do while the garage was being built. The true measure of a quality company is how they react when things turn sideways and how they treat their customers when money is no longer changing hands. 10 stars!!"

Michael W on August 2024


Avatar for Willow Outdoor Care
Willow Outdoor Care
4112 W 91st St
5.00(
3
)
Approved Pro
Willow Outdoor Care
4112 W 91st St
5.00(
3
)
Approved Pro
Customers say: Quick response
36 local quotes requested
2 years of experience

Willow Outdoor Care is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Willow Outdoor Care goes above and beyond to make sure their clients are happy and taken care of. I frequently share their info with people I run into because I know the quality of work they do and how they interact with others. A++ all the way around!"

Hunter S on October 2024

Willow Outdoor Care is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands-on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"Willow Outdoor Care goes above and beyond to make sure their clients are happy and taken care of. I frequently share their info with people I run into because I know the quality of work they do and how they interact with others. A++ all the way around!"

Hunter S on October 2024


Avatar for A&M Renovation LLC
A&M Renovation LLC
7924 NE San Rafael Drive
5.00(
4
)
Approved Pro
A&M Renovation LLC
7924 NE San Rafael Drive
5.00(
4
)
Approved Pro
5 years of experience
Free onsite estimate

We take great pride in our 50 years of experience, 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 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.

"Anytime my company removes a tree fallen on a house, A&M is who we refer for the repairs. Kevin Murphy takes pride in his work. 100% recommend! Jim koehn, Lumberjk Tree Professionals"

james k on March 2025

We take great pride in our 50 years of experience, 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 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.

"Anytime my company removes a tree fallen on a house, A&M is who we refer for the repairs. Kevin Murphy takes pride in his work. 100% recommend! Jim koehn, Lumberjk Tree Professionals"

james k on March 2025


Don Kelly Construction
711 N.E. Lone Hill Drive
4.31(
25
)
Approved Pro
Don Kelly Construction
711 N.E. Lone Hill Drive
4.31(
25
)
Approved Pro
Customers say: Terrific value
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
34 years of experience

Don Kelly Construction is a full service residential building and remodeling general contractor who services the greater Kansas City area and surrounding cities. We are a quality conscious general contractor, with over 20 years of industry experience, and a long list of satisfied customers. We look forward to providing you with the best in quality and service to help you fulfill the vision for your project, and make it a reality. We are a licensed and insured company in good standing. We are excited about the possibilities of making you another one of our satisfied customers. Please let us know how we can help YOU!

"Good job."

Kevin M on December 2022

Don Kelly Construction is a full service residential building and remodeling general contractor who services the greater Kansas City area and surrounding cities. We are a quality conscious general contractor, with over 20 years of industry experience, and a long list of satisfied customers. We look forward to providing you with the best in quality and service to help you fulfill the vision for your project, and make it a reality. We are a licensed and insured company in good standing. We are excited about the possibilities of making you another one of our satisfied customers. Please let us know how we can help YOU!

"Good job."

Kevin M on December 2022


Avatar for One Source KC
One Source KC
100 Electronics Pkwy
5.00(
8
)
Approved Pro
One Source KC
100 Electronics Pkwy
5.00(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
56 local quotes requested

One Source is a locally owned and operated company. One Source is licensed and insured. We take pride in our growth through referrals and we always strive to conduct our business with honesty and integrity.

"Company was easy to work with and had competitive prices. Crew was pleasant and did a great job"

jonathan h on February 2020

One Source is a locally owned and operated company. One Source is licensed and insured. We take pride in our growth through referrals and we always strive to conduct our business with honesty and integrity.

"Company was easy to work with and had competitive prices. Crew was pleasant and did a great job"

jonathan h on February 2020

...
Showing 1-10 of 974

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.
built-in outdoor kitchen with grill and sink
Apr 30, 2025
Apr 30, 2025
Budget for outdoor kitchen costs based on factors such as appliances, materials, permits, labor, amenities, kitchen size, customizations, and more.
BLUE TWO STORY HOME
Apr 30, 2025
Apr 30, 2025
Budget for the cost to add a second story based on factors such as size, foundation work, materials, labor, permits, post-construction cleaning, and more.
small bathroom that has been updated in a remodel
Apr 29, 2025
Apr 29, 2025
Budget for the cost to remodel a small bathroom based on factors such as required fixtures, bathroom size, labor, remodel type, site prep, and more.
guest house in the backyard
Apr 27, 2025
Apr 27, 2025
Need to build a guest house? Here’s how much it costs, what factors affect cost, and what to expect.
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.
Share project details to get started.