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Find Addition to existing structure builders in Auburn

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


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


CNC Corporation

9609 Berkshire Court Southeast
4.88(
8
)
Approved Pro

CNC Corporation

9609 Berkshire Court Southeast
4.88(
8
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

If you're looking for quality, reasonable prices and professionalism, look no further than CNC Corporation. We are simply the best. Serving the Thurston, Pierce and King County areas for over 30 years, we design, remodel and build custom additions that bond with your vision and style to reflect your image among your peers. Our designs will give you a boost of prestige and status, unmatched by industry standards. We are committed to satisfying our client�s needs and wants. We specialize in custom additions, remodels and deck builds, we can do it all as a general contractor. We give free quotes and are fully insured. Call us today! Office hours: 5am - 7pm

"Charlie and his team replaced siding and rotted sill and 2 x 4's due to water damage. He was very responsive in quickly supplying a bid and being available when we needed him. The work was done efficiently with he and his other worker. My only slight disappointment was that we did not have as clear of communication as we should have about unused materials and we ended up losing a piece of siding that we should have kept but truly communication is a two-way street so it was partially our fault but he should have asked as well. We will definitely call him again for work on this house very profeswe will definitely call him again for work on this house very professional"

Anne S on April 2016

If you're looking for quality, reasonable prices and professionalism, look no further than CNC Corporation. We are simply the best. Serving the Thurston, Pierce and King County areas for over 30 years, we design, remodel and build custom additions that bond with your vision and style to reflect your image among your peers. Our designs will give you a boost of prestige and status, unmatched by industry standards. We are committed to satisfying our client�s needs and wants. We specialize in custom additions, remodels and deck builds, we can do it all as a general contractor. We give free quotes and are fully insured. Call us today! Office hours: 5am - 7pm

"Charlie and his team replaced siding and rotted sill and 2 x 4's due to water damage. He was very responsive in quickly supplying a bid and being available when we needed him. The work was done efficiently with he and his other worker. My only slight disappointment was that we did not have as clear of communication as we should have about unused materials and we ended up losing a piece of siding that we should have kept but truly communication is a two-way street so it was partially our fault but he should have asked as well. We will definitely call him again for work on this house very profeswe will definitely call him again for work on this house very professional"

Anne S on April 2016


High Level Builders

17651 1st Ave S Suite 106
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

High Level Builders

17651 1st Ave S Suite 106
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
6 years of experience
Free onsite estimate

With over 10 years of experience in the construction industry, we are the service professionals you need to take care of your home or business. We handle all types of renovation projects. We will treat your home as we would treat our own. Give High Level Builders a call today, we look forward to working with you!

With over 10 years of experience in the construction industry, we are the service professionals you need to take care of your home or business. We handle all types of renovation projects. We will treat your home as we would treat our own. Give High Level Builders a call today, we look forward to working with you!


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 Plantrak Decks, LLC

Plantrak Decks, LLC

26255 124th Avenue Southeast
4.82(
36
)
Approved Pro

Plantrak Decks, LLC

26255 124th Avenue Southeast
4.82(
36
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
35 years of experience

Smartdecks LLC has been in business for more than 30 years. Our area of expertise is in installing decks, Timber Frame and post & beam, structural and rot repair. We are a family owned and operated business. We strive to provide reliable and quality service with fair prices. Call us directly at 253-312-2224 to get the fastest response!

"We had Plantrex do a deck resurfaced. After it was in, there was a tenant caused deck fire. Plantrex did an outstanding job on both the original resurface and on the deck repair and restoration after the fire. Cleanup, everything was great."

Robert B on December 2021

Smartdecks LLC has been in business for more than 30 years. Our area of expertise is in installing decks, Timber Frame and post & beam, structural and rot repair. We are a family owned and operated business. We strive to provide reliable and quality service with fair prices. Call us directly at 253-312-2224 to get the fastest response!

"We had Plantrex do a deck resurfaced. After it was in, there was a tenant caused deck fire. Plantrex did an outstanding job on both the original resurface and on the deck repair and restoration after the fire. Cleanup, everything was great."

Robert B on December 2021


K A M Construction, Inc.

19419 W. Tapps Highway East
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

K A M Construction, Inc.

19419 W. Tapps Highway East
New on HomeAdvisorNew 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 R&R Contractors NW, LLC

R&R Contractors NW, LLC

21940 225th Place Southeast
4.94(
8
)
Approved Pro

R&R Contractors NW, LLC

21940 225th Place Southeast
4.94(
8
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

R&R Contractors NW, LLC, prides our company on reliability, great communication, integrity and quality work. We are experts in our trade and we 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!

"The nicest and hardest working construction crew and company Iâ ve ever dealt with. Extremely excellent customer service. Employees showed up several minutes earlier than expected every morning. The large crew always work together along with the boss doing a lot of grunt work himself. They laughed and really seem to enjoy doing their job together as a team. We could not be happier with the driveway that we have waited for for 10 years."

Christopher M on July 2022

R&R Contractors NW, LLC, prides our company on reliability, great communication, integrity and quality work. We are experts in our trade and we 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!

"The nicest and hardest working construction crew and company Iâ ve ever dealt with. Extremely excellent customer service. Employees showed up several minutes earlier than expected every morning. The large crew always work together along with the boss doing a lot of grunt work himself. They laughed and really seem to enjoy doing their job together as a team. We could not be happier with the driveway that we have waited for for 10 years."

Christopher M on July 2022


Avatar for KOI BUILD CO

KOI BUILD CO

7605 Mullen Rd Se
4.63(
12
)
Approved Pro

KOI BUILD CO

7605 Mullen Rd Se
4.63(
12
)
Approved Pro
Customers say: Quick response
8 years of experience
Free onsite estimate

Koi Construction, LLC, originally established as HK Design & Remodeling and M&I Property Services, has always started from modest beginnings. Our core belief is that true success comes from engaging passionately in our work, rather than being driven by financial motives. We are committed to excelling in our projects, making a distinct mark through exceptional performance. Our unwavering focus remains on outstanding client service and superior craftsmanship. Despite our growth, we steadfastly adhere to our fundamental mission: "To achieve ongoing success by ensuring client satisfaction, delivering high-quality services, and upholding genuine integrity, all of which culminate in the finest craftsmanship."

"The whole experience was excellent. Chris when to give us a bid. He was very knowledgeable. He told use about the triangle of stove, fridge and sink and flow. He suggested a long narrow window to replace the tile backsplash on an outside wall. It was a great idea. When sit at the new bar between the kitchen and the living room we look out into our backyard. Itâ s beautiful. The guys that did the work are extremely work oriented. They are constantly working. They were thorough, knowledgeable and open to our suggestions and requests. We wanted an additional can light no problem. They were great. They cleaned up every day before they left. They would tell use when they were going to arrive and what they planned to accomplish that day. I have old siding on the outside of my house. They matched it perfectly when eliminated a window. The price of the cabinets was a lot more reasonable the other bids and theyâ re beautiful. What I mentally pictured in my mind on how it would look and the ease of preparing meals in the new kitchen were so wrong. Itâ s at least 10 times better. It still has the same physical dimensions but how itâ s played out. It seems so much bigger. I highly recommend them for any project you need done"

Woody W on September 2024

Koi Construction, LLC, originally established as HK Design & Remodeling and M&I Property Services, has always started from modest beginnings. Our core belief is that true success comes from engaging passionately in our work, rather than being driven by financial motives. We are committed to excelling in our projects, making a distinct mark through exceptional performance. Our unwavering focus remains on outstanding client service and superior craftsmanship. Despite our growth, we steadfastly adhere to our fundamental mission: "To achieve ongoing success by ensuring client satisfaction, delivering high-quality services, and upholding genuine integrity, all of which culminate in the finest craftsmanship."

"The whole experience was excellent. Chris when to give us a bid. He was very knowledgeable. He told use about the triangle of stove, fridge and sink and flow. He suggested a long narrow window to replace the tile backsplash on an outside wall. It was a great idea. When sit at the new bar between the kitchen and the living room we look out into our backyard. Itâ s beautiful. The guys that did the work are extremely work oriented. They are constantly working. They were thorough, knowledgeable and open to our suggestions and requests. We wanted an additional can light no problem. They were great. They cleaned up every day before they left. They would tell use when they were going to arrive and what they planned to accomplish that day. I have old siding on the outside of my house. They matched it perfectly when eliminated a window. The price of the cabinets was a lot more reasonable the other bids and theyâ re beautiful. What I mentally pictured in my mind on how it would look and the ease of preparing meals in the new kitchen were so wrong. Itâ s at least 10 times better. It still has the same physical dimensions but how itâ s played out. It seems so much bigger. I highly recommend them for any project you need done"

Woody W on September 2024


Avatar for Iron Earth Construction LLC

Iron Earth Construction LLC

115 West Hill Street
5.00(
3
)
Approved Pro

Iron Earth Construction LLC

115 West Hill Street
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 local quotes requested

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

"Very accommodating and great service and product"

sally k on September 2023

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

"Very accommodating and great service and product"

sally k on September 2023

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

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

The Auburn, 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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.