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 Sumner

Greg Appert Construction
15803 Gold Bar Drive
5.00(
1
)
Approved Pro
Greg Appert Construction
15803 Gold Bar Drive
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
29 years of experience

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality 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.

"I have been using their services for 10 years, and I greatly appreciate their integrity, trust, dedication, and the quality of their work. I would highly recommend them!"

Glenn B on January 2021

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality 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.

"I have been using their services for 10 years, and I greatly appreciate their integrity, trust, dedication, and the quality of their work. I would highly recommend them!"

Glenn B on January 2021


Avatar for Modern Outdoor Builders LLC
Modern Outdoor Builders LLC
10717 Renton Ave S
5.00(
15
)
Approved Pro
Modern Outdoor Builders LLC
10717 Renton Ave S
5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
3 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom 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.

"Professional and on time service. Would recommend to anyone looking for help with their dreams. "

Jesse L on March 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom 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.

"Professional and on time service. Would recommend to anyone looking for help with their dreams. "

Jesse L on March 2025


WALT KANE CONSTRUCTION, LLC
5230 336TH AVE SE
5.00(
5
)
Approved Pro
WALT KANE CONSTRUCTION, LLC
5230 336TH AVE SE
5.00(
5
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

With over 30 years of experience, we take great pride in our 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. // Payment: Cash, Zelle & Check // M-F: 7am - 5pm

"During the summer of 2024, we were looking to get our basement completely renovated and we are so lucky that we connected with Zach. Zach and his talented crew worked endlessly to achieve our vision for the space and get it done within an extremely fast timeline. The detail to attention, easy and seamless communication and the trust we had for his crew are among the many reasons we will always use Zach for our home projects. "

Morgan R on January 2025

With over 30 years of experience, we take great pride in our 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. // Payment: Cash, Zelle & Check // M-F: 7am - 5pm

"During the summer of 2024, we were looking to get our basement completely renovated and we are so lucky that we connected with Zach. Zach and his talented crew worked endlessly to achieve our vision for the space and get it done within an extremely fast timeline. The detail to attention, easy and seamless communication and the trust we had for his crew are among the many reasons we will always use Zach for our home projects. "

Morgan R on January 2025


Ace Remodeling, LLC
31108 3rd Avenue, Lot 232
New on HomeAdvisorNew on Angi
Approved Pro
Ace Remodeling, LLC
31108 3rd Avenue, Lot 232
New on AngiNew on HomeAdvisor
Approved Pro
4 years of experience
Free onsite estimate

ACE REMODELING 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 23 years of industry experience, is what makes us true professionals. Above all, we are mindful of our client's interests, and make their concerns the basis of our business.

ACE REMODELING 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 23 years of industry experience, is what makes us true professionals. Above all, we are mindful of our client's interests, and make their concerns the basis of our business.


Avatar for RENOVISION DESIGN & BUILD LLC
RENOVISION DESIGN & BUILD LLC
1400 112TH AVE SE STE 100
4.94(
67
)
Approved Pro
RENOVISION DESIGN & BUILD LLC
1400 112TH AVE SE STE 100
4.94(
67
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
31 local quotes requested

At Renovision Design & Build, we specialize in transforming homes through expert remodeling services tailored to each client's unique vision. With years of hands-on experience, we take pride in delivering high-quality craftsmanship, personalized design solutions, and clear communication every step of the way. From kitchens and bathrooms to full-scale renovations, our team handles everything — from 3D planning and material selection to construction and final touches — with professionalism and care. Our reputation is built on trust, transparency, and results. No matter the size of the project, we treat every home like it's our own. 📞 Get in touch today to schedule your free consultation!

"The crew was wonderful. Appreciate all the help and expertise. Highly recommended!"

matan f on May 2025

At Renovision Design & Build, we specialize in transforming homes through expert remodeling services tailored to each client's unique vision. With years of hands-on experience, we take pride in delivering high-quality craftsmanship, personalized design solutions, and clear communication every step of the way. From kitchens and bathrooms to full-scale renovations, our team handles everything — from 3D planning and material selection to construction and final touches — with professionalism and care. Our reputation is built on trust, transparency, and results. No matter the size of the project, we treat every home like it's our own. 📞 Get in touch today to schedule your free consultation!

"The crew was wonderful. Appreciate all the help and expertise. Highly recommended!"

matan f on May 2025


Avatar for MNBE Construction And Development LLC
MNBE Construction And Development LLC
2014 Fairview Ave Apt 2308
5.00(
1
)
Approved Pro
MNBE Construction And Development LLC
2014 Fairview Ave Apt 2308
5.00(
1
)
Approved Pro
2 years of experience
Free onsite estimate

With over 18 years of experience in the construction industry, MNBE Construction and Development LLC is a trusted provider of high-quality residential construction and remodeling services. We specialize in new home construction, full home renovations, kitchen and bathroom remodeling, roofing, concrete work, and deck rebuilding and restoration. Our team is dedicated to delivering exceptional craftsmanship, professional service, and reliable results on every project—large or small. We take pride in turning our clients’ visions into reality while maintaining transparency, integrity, and attention to detail throughout the process. We offer free estimates and are committed to completing every job on time and within budget. At MNBE, your satisfaction is our top priority.

"I DO have a prior relationship with this pro. I hired him last summer to replace my upstairs deck at my residence. He went on to do other work on my residence. The work in 98391 is on my rental home. I was so pleased with his work last summer that I hired him to the whole rental house this winter. The thing I particularly appreciated was that he reimagined the kitchen and then executed his idea. This involved taking out a wall and reconfiguring the doorway. He replaced the roof and the chimney. He replaced all the floors and the insulation underneath the house. He replaced the two full bathrooms and the half-bath. He painted the exterior and the interior. He replaced the exterior door and all the interior doors and the windows. He replaced the deck and built a new fence around the back yard. The workers he employs are skilled and courteous. They work quickly and are prompt in taking care of touch-ups. I would certainly hire him again. "

Nancy R on June 2025

With over 18 years of experience in the construction industry, MNBE Construction and Development LLC is a trusted provider of high-quality residential construction and remodeling services. We specialize in new home construction, full home renovations, kitchen and bathroom remodeling, roofing, concrete work, and deck rebuilding and restoration. Our team is dedicated to delivering exceptional craftsmanship, professional service, and reliable results on every project—large or small. We take pride in turning our clients’ visions into reality while maintaining transparency, integrity, and attention to detail throughout the process. We offer free estimates and are committed to completing every job on time and within budget. At MNBE, your satisfaction is our top priority.

"I DO have a prior relationship with this pro. I hired him last summer to replace my upstairs deck at my residence. He went on to do other work on my residence. The work in 98391 is on my rental home. I was so pleased with his work last summer that I hired him to the whole rental house this winter. The thing I particularly appreciated was that he reimagined the kitchen and then executed his idea. This involved taking out a wall and reconfiguring the doorway. He replaced the roof and the chimney. He replaced all the floors and the insulation underneath the house. He replaced the two full bathrooms and the half-bath. He painted the exterior and the interior. He replaced the exterior door and all the interior doors and the windows. He replaced the deck and built a new fence around the back yard. The workers he employs are skilled and courteous. They work quickly and are prompt in taking care of touch-ups. I would certainly hire him again. "

Nancy R on June 2025


Avatar for AV Design & Build
AV Design & Build
5157 Lakemont Blvd
5.00(
7
)
Approved Pro
AV Design & Build
5157 Lakemont Blvd
5.00(
7
)
Approved Pro
Customers say: Quick response
20 local quotes requested
4 years of experience

AV Design & Build 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.

"They did a great job, very responsible and reliable."

Samantha L on November 2022

AV Design & Build 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.

"They did a great job, very responsible and reliable."

Samantha L on November 2022


K A M Construction, Inc.
19419 W. Tapps Highway East
New on HomeAdvisorNew on Angi
Approved Pro
K A M Construction, Inc.
19419 W. Tapps Highway East
New on AngiNew on HomeAdvisor
Approved Pro
8 years of experience
Free onsite estimate

With over 15 years of experence K A M Construction, Inc. takes great pride in our experience, expertise, quality and customer service that we provide to meet your 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.

With over 15 years of experence K A M Construction, Inc. takes great pride in our experience, expertise, quality and customer service that we provide to meet your 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 Cascade Pro, Inc.
Cascade Pro, Inc.
748 Market St, Suite 90
5.00(
4
)
Approved Pro
Cascade Pro, Inc.
748 Market St, Suite 90
5.00(
4
)
Approved Pro
4 years of experience
Free onsite estimate

Cascade Pro 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 customer's interests, and make their concerns the basis of our business.

"We recently got our bathroom remodeled with Cascade pro, David was great and we strongly recommend."

Ohad B on January 2025

Cascade Pro 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 customer's interests, and make their concerns the basis of our business.

"We recently got our bathroom remodeled with Cascade pro, David was great and we strongly recommend."

Ohad B on January 2025


Avatar for Honeycomb Construction
Honeycomb Construction
618 146th Avenue NE, #64
4.81(
37
)
Approved Pro
Honeycomb Construction
618 146th Avenue NE, #64
4.81(
37
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
242 local quotes requested

We pride our company on reliability, great 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 task or project. We look forward to earning your business!

"Very professional and efficient. We had a great experience!"

Samantha S on March 2024

We pride our company on reliability, great 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 task or project. We look forward to earning your business!

"Very professional and efficient. We had a great experience!"

Samantha S on March 2024

...
Showing 1-10 of 944

FAQs for addition to existing structure building service projects in Sumner, WA

Building an in-law suite takes between two and seven months. Converting an existing basement, attic, or room can be done in about two months. Constructing a new addition or detached suite often takes four to five months for construction, plus one to two months for permits. The bigger the suite, the longer it will take. 

Yes, you can build an in-law suite in your backyard if you meet local building codes and zoning regulations. An in-law suite often occupies 300 to 800 square feet. Be sure to follow size restrictions, utility separations, and entrance requirements. Hiring a qualified contractor ensures you meet all regulatory requirements because they can pull permits, double-check local code, and gather other skilled pros to work on your suite. 

An in-law suite is a self-contained living space attached to—or detached from—your main home. Expect a bedroom, full bath, and a kitchenette or compact living area. The setup gives relatives privacy, doubles as a potential rental, and can lift your property value. To qualify as a legal dwelling, the suite must meet local building codes and zoning rules.

The Sumner, WA 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.
BRIGHT OPEN ATTIC SPACE
Jun 10, 2025
Jun 10, 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.
white and gray kitchen with butchers block countertop
Apr 8, 2025
Apr 8, 2025
Looking to enhance the warmth and utility of your kitchen? Explore how much a butcher block countertop costs and start your budget here.
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.
Share project details to get started.