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Addition to existing structure builders in Renton

Platinum General Construction LLC
6208 202nd St SW Unit 66
5.00(
5
)
Approved Pro
Platinum General Construction LLC
6208 202nd St SW Unit 66
5.00(
5
)
Approved Pro
Customers say: Quick response
9 years of experience
Free onsite estimate

With years in the industry here at Platinum General Construction LLC we pride our company on attention to detail, punctuality, 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. Our attention to detail is that of no other. We look forward to earning your business. Give us a call today!

"Platinum General Construction LLC was contacted after two initially hired contractors were incompetent in providing the remodeling services needed for our bathroom remodel in Dec/Jan 2025. Platinum stepped in and completed the work on time and as quoted. David was our primary contact. He was great as respects communication, working through issues, and coordinating with subcontractors. The remodel included heated tile floors, a curbless shower, toilet install, and beautiful tile work. We were pleased that Platinum got our project back on track and finished after dealing with the mis-steps of our original contractors."

Ron B on April 2025

With years in the industry here at Platinum General Construction LLC we pride our company on attention to detail, punctuality, 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. Our attention to detail is that of no other. We look forward to earning your business. Give us a call today!

"Platinum General Construction LLC was contacted after two initially hired contractors were incompetent in providing the remodeling services needed for our bathroom remodel in Dec/Jan 2025. Platinum stepped in and completed the work on time and as quoted. David was our primary contact. He was great as respects communication, working through issues, and coordinating with subcontractors. The remodel included heated tile floors, a curbless shower, toilet install, and beautiful tile work. We were pleased that Platinum got our project back on track and finished after dealing with the mis-steps of our original contractors."

Ron B on April 2025


Avatar for Home Care Contractors, LLC
Home Care Contractors, LLC
10634 Riverside Dr E Ste 205
4.84(
19
)
Approved Pro
Home Care Contractors, LLC
10634 Riverside Dr E Ste 205
4.84(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
8 years of experience

Home Care Contractors, LLC 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.

"Overall good experience with HCC."

Jessica B on November 2021

Home Care Contractors, LLC 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.

"Overall good experience with HCC."

Jessica B on November 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


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.


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


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


Avatar for Seattle Style Remodel & Landscaping, Inc.
Seattle Style Remodel & Landscaping, Inc.
1420 NW Gilman Blvd #2166
4.83(
29
)
Approved Pro
Seattle Style Remodel & Landscaping, Inc.
1420 NW Gilman Blvd #2166
4.83(
29
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 local quotes requested

SSR is an industry leader with over 75 years of combined experience in our field. Our goal is to exceed your expectations of customer service, product quality, workmanship, and communication. SSR offers an array of services varying in size and scope. Our talented, dedicated team of experts is able to assist you from concept to completion. We have the experience and resources to handle the unique working conditions of the region and ensure timely completion of your project. Most importantly, we respect the fact that we are working in your home. For your safety and peace of mind, all of our experts are fully licensed and bonded. - SSR

"They did an extensive kitchen and master bath remodel and did excellent work."

Andrew S on April 2025

SSR is an industry leader with over 75 years of combined experience in our field. Our goal is to exceed your expectations of customer service, product quality, workmanship, and communication. SSR offers an array of services varying in size and scope. Our talented, dedicated team of experts is able to assist you from concept to completion. We have the experience and resources to handle the unique working conditions of the region and ensure timely completion of your project. Most importantly, we respect the fact that we are working in your home. For your safety and peace of mind, all of our experts are fully licensed and bonded. - SSR

"They did an extensive kitchen and master bath remodel and did excellent work."

Andrew S on April 2025


Avatar for Mount Baker Remodeling
Mount Baker Remodeling
2534 34th Avenue South
4.00(
5
)
Approved Pro
Mount Baker Remodeling
2534 34th Avenue South
4.00(
5
)
Approved Pro
24 years of experience
Free onsite estimate

Since 2000 Mount Baker Remodeling has been expanding its circle of clients through a variety of high quality remodeling projects - kitchens, baths, basements, additional dwelling units, and more. We look forward to helping you create a beautiful, enjoyable and practical backdrop to your home life - a home remodeled for better living. MBR gives special attention to customized interior/exterior architectural and decorative details that create one-of-a kind living spaces. Mount Baker Remodeling uses the highest quality products to ensure that your remodel stands the test of time. We strive to complete every project, large or small, on time and on budget. With team collaboration, we turn your vision into reality.

"Sure! Here's a polished review you can use: --- We recently hired Mount Baker Remodeling to remodel our bathroom, and we couldn’t be happier with the results. They did an excellent job from start to finish—efficient, professional, and a great cost-benefit overall. Our house is quite old, which brought a few unexpected challenges, but the team handled everything with flexibility and expertise, adapting quickly to the issues without compromising quality or timeline. We highly recommend Mount Baker Remodeling to anyone looking for reliable, high-quality work! "

Susannah M on May 2025

Since 2000 Mount Baker Remodeling has been expanding its circle of clients through a variety of high quality remodeling projects - kitchens, baths, basements, additional dwelling units, and more. We look forward to helping you create a beautiful, enjoyable and practical backdrop to your home life - a home remodeled for better living. MBR gives special attention to customized interior/exterior architectural and decorative details that create one-of-a kind living spaces. Mount Baker Remodeling uses the highest quality products to ensure that your remodel stands the test of time. We strive to complete every project, large or small, on time and on budget. With team collaboration, we turn your vision into reality.

"Sure! Here's a polished review you can use: --- We recently hired Mount Baker Remodeling to remodel our bathroom, and we couldn’t be happier with the results. They did an excellent job from start to finish—efficient, professional, and a great cost-benefit overall. Our house is quite old, which brought a few unexpected challenges, but the team handled everything with flexibility and expertise, adapting quickly to the issues without compromising quality or timeline. We highly recommend Mount Baker Remodeling to anyone looking for reliable, high-quality work! "

Susannah M on May 2025


Avatar for A TO Z HOME REMODELING LLC
A TO Z HOME REMODELING LLC
1024 N 10TH PL SUITE 2446
5.00(
9
)
Approved Pro
A TO Z HOME REMODELING LLC
1024 N 10TH PL SUITE 2446
5.00(
9
)
Approved Pro
1 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 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.

"Very professional! Easy to work with. Always available, kitchen remodel done in a timely manner Excellent workmanship great crew. Will definitely hire them again for future projects. Nancy O."

Nancy O on May 2025

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.

"Very professional! Easy to work with. Always available, kitchen remodel done in a timely manner Excellent workmanship great crew. Will definitely hire them again for future projects. Nancy O."

Nancy O on May 2025


Avatar for Rosell Home, LLC
Rosell Home, LLC
P.O. Box 2923
4.90(
26
)
Approved Pro
Rosell Home, LLC
P.O. Box 2923
4.90(
26
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 local quotes requested

Welcome to Rosell Home, LLC, where we bring over 20 years of experience to deliver the highest standard of craftsmanship and customer service in new home builds, residential remodels, and home additions. Our expertise extends to architectural and engineering services, ensuring your project meets both aesthetic and structural requirements. As part of our comprehensive offerings, we handle all permitting needs with the city, streamlining the process for you. In collaboration with our sister company, Washington Cabinet Co., we proudly manufacture modern and traditional cabinets tailored to your kitchen, bathroom, or closet needs. Our cabinet design center is conveniently located in downtown Redmond, WA. Come in, meet with our designer, and design your dream cabinetry with Washington Cabinet Co.As a locally owned business, we are deeply committed to our community and dedicated to making the remodeling process as effortless and rewarding as possible for our clients. Give us a call today!

"In addition to my other 5 star ratings I would like to add a five star appreciation for the entire teams respect for the home owners comfort and wishes as well as pride in their work."

Bev G on November 2023

Welcome to Rosell Home, LLC, where we bring over 20 years of experience to deliver the highest standard of craftsmanship and customer service in new home builds, residential remodels, and home additions. Our expertise extends to architectural and engineering services, ensuring your project meets both aesthetic and structural requirements. As part of our comprehensive offerings, we handle all permitting needs with the city, streamlining the process for you. In collaboration with our sister company, Washington Cabinet Co., we proudly manufacture modern and traditional cabinets tailored to your kitchen, bathroom, or closet needs. Our cabinet design center is conveniently located in downtown Redmond, WA. Come in, meet with our designer, and design your dream cabinetry with Washington Cabinet Co.As a locally owned business, we are deeply committed to our community and dedicated to making the remodeling process as effortless and rewarding as possible for our clients. Give us a call today!

"In addition to my other 5 star ratings I would like to add a five star appreciation for the entire teams respect for the home owners comfort and wishes as well as pride in their work."

Bev G on November 2023

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Addition to existing structure building services FAQs

Most ADU projects require several months from initial planning through final inspection. The timeline includes designing plans, securing permits, site preparation, construction, and finishing work. 

Factors affecting duration include project complexity, contractor availability, weather conditions, and local permitting processes. Planning for potential delays due to material shortages or inspection scheduling is advisable when establishing your project timeline.

Homeowners can access various funding sources for ADU projects. Home equity loans and lines of credit leverage existing property value, while construction loans provide phased funding specifically for building projects. Some areas offer specialized ADU financing programs with favorable terms. 

Personal loans might work for smaller conversions, though they often carry higher interest rates. Your financial situation, credit profile, and project scope will determine which option provides the most advantageous terms.

Adding an ADU often increases your property's assessed value, resulting in higher tax obligations. The specific impact varies by location, as assessment methods and tax rates differ between jurisdictions. Some areas offer temporary exemptions or gradual increases to ease the financial transition. 

For accurate projections, consult your local tax assessor before beginning construction to understand how your specific project will affect future tax bills.

Short-term rental regulations vary dramatically between municipalities. Some jurisdictions permit vacation rentals with minimal restrictions, while others impose occupancy limits, licensing requirements, or outright prohibitions, particularly for ADUs. Many areas require owner occupancy of the primary residence when renting an ADU short-term. 

Research your local ordinances thoroughly before planning rental income, as non-compliance penalties can be substantial.

The ADU construction process frequently encounters obstacles, including complex permitting requirements, unexpected site conditions requiring additional work, contractor scheduling difficulties, and budget management challenges. Many homeowners underestimate the complexity of coordinating multiple specialized trades. 

Additionally, ensuring adequate privacy between the main residence and ADU while maintaining aesthetic cohesion requires careful planning. Thorough preparation and working with experienced professionals can help navigate these common pitfalls.

Identifying qualified ADU contractors requires targeted research. Begin by seeking recommendations from neighbors with completed ADU projects or contacting local builder associations for specialist referrals. Review contractors' portfolios specifically for ADU or small residential projects similar to your vision. 

When interviewing potential candidates, assess their familiarity with local ADU regulations, ask about recent similar projects, and request contact information for past clients with comparable projects.

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.
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