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Addition to existing structure builders in Dupont

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

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

Avatar for Gruhn Homes

Gruhn Homes

2318 65TH Lane NW
5.00(
12
)
•Approved Pro

Gruhn Homes

2318 65TH Lane NW
5.00(
12
)
•Approved Pro
Customers say: Quality work
15 local quotes requested
23 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 the start to the 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 look forward to helping bring your dreams and visions into reality! Check out our Instagram or Facebook for current projects: Gruhn Homes

"My husband and I have built multiple homes over the years for our growing family. Andy Gruhn was by far the most high quality excellent homebuilder on every level. I truly cannot rave enough or even express my gratitude for the amazing Home They built us!!!! From start to finish, they went way above and beyond, they were quality in details that as a new homebuilder, you donâ t think of until, after the fact, sometimes years, after the fact, I still marvel at the things they thought of for us, that we didnâ t even ask for, that they provided for us to be sure our large family of small children would be taken care of and comfortable for years to come. at the time we were on a very tight budget and they were more than generous. I am beyond grateful to have worked with him and for the quality home they built for our family. They couldâ ve cut corners to save money and make a better profit but instead they just gave us a better home Now that Iâ ve worked with a new builder, Iâ m even more surprised at everything that was included in our home. Heâ s just a standup good community building person that stands by his words and means what he says. When we move back to Washington state Iâ m hoping to build with him again hands-down, I truly canâ t express my gratitude. Andy doesnâ t just build homes he builds communities."

Ami B on December 2024

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 the start to the 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 look forward to helping bring your dreams and visions into reality! Check out our Instagram or Facebook for current projects: Gruhn Homes

"My husband and I have built multiple homes over the years for our growing family. Andy Gruhn was by far the most high quality excellent homebuilder on every level. I truly cannot rave enough or even express my gratitude for the amazing Home They built us!!!! From start to finish, they went way above and beyond, they were quality in details that as a new homebuilder, you donâ t think of until, after the fact, sometimes years, after the fact, I still marvel at the things they thought of for us, that we didnâ t even ask for, that they provided for us to be sure our large family of small children would be taken care of and comfortable for years to come. at the time we were on a very tight budget and they were more than generous. I am beyond grateful to have worked with him and for the quality home they built for our family. They couldâ ve cut corners to save money and make a better profit but instead they just gave us a better home Now that Iâ ve worked with a new builder, Iâ m even more surprised at everything that was included in our home. Heâ s just a standup good community building person that stands by his words and means what he says. When we move back to Washington state Iâ m hoping to build with him again hands-down, I truly canâ t express my gratitude. Andy doesnâ t just build homes he builds communities."

Ami B on December 2024

Avatar for Lakeview Contractors, Inc

Lakeview Contractors, Inc

2532 Summit Lake Shore Rd NW
5.00(
11
)
•Approved Pro

Lakeview Contractors, Inc

2532 Summit Lake Shore Rd NW
5.00(
11
)
•Approved Pro
27 years of experience
Free onsite estimate

Established in 1998, owner Ted Hultman continues his vision with his sons; Ryder and Tanner Hultman. Together this second generation of contractors has worked hard to establish long-lasting, professional relationships with local vendors and sub contractors to ensure swift and thorough contracting services in Olympia, Lacey, Tumwater and surrounding cities of Thurston County, WA. 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. Call us today.

"Did a fantastic job building us a new fence!"

Inah _ on May 2025

Established in 1998, owner Ted Hultman continues his vision with his sons; Ryder and Tanner Hultman. Together this second generation of contractors has worked hard to establish long-lasting, professional relationships with local vendors and sub contractors to ensure swift and thorough contracting services in Olympia, Lacey, Tumwater and surrounding cities of Thurston County, WA. 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. Call us today.

"Did a fantastic job building us a new fence!"

Inah _ on May 2025

Avatar for Harmon & Harmon Consulting, Inc.

Harmon & Harmon Consulting, Inc.

4742 181st Ln SW
4.46(
47
)
•Approved Pro

Harmon & Harmon Consulting, Inc.

4742 181st Ln SW
4.46(
47
)
•Approved Pro
Customers say: Super punctual
42 local quotes requested
37 years of experience

With over 30 years of experience in the general contracting Industry, we are the experts you need to take care of your home or business. We handle everything from remodels to deck/porch builds. We will treat your home or business as we would treat our own. Give Harmon & Harmon Consulting a call today, we look forward to working with you!

"Had them rip out the fireplace that was installed poorly in 1990. A bit costly, but I doubt a single handyman could have done it in a timely fashion. Done in 3 days start to finish. I was expecting some water damage, but it was much worse. Getting a exact price for the work out of them beforehand was impossible. Ultimately it cost $2500 extra do to having to replace more sections of the roof and support beans. They didn't pull a fast one, the wood crumbled when touched. Labor isn't cheap. Would hire them again because the work is solid. "

Isaiah R on August 2025

With over 30 years of experience in the general contracting Industry, we are the experts you need to take care of your home or business. We handle everything from remodels to deck/porch builds. We will treat your home or business as we would treat our own. Give Harmon & Harmon Consulting a call today, we look forward to working with you!

"Had them rip out the fireplace that was installed poorly in 1990. A bit costly, but I doubt a single handyman could have done it in a timely fashion. Done in 3 days start to finish. I was expecting some water damage, but it was much worse. Getting a exact price for the work out of them beforehand was impossible. Ultimately it cost $2500 extra do to having to replace more sections of the roof and support beans. They didn't pull a fast one, the wood crumbled when touched. Labor isn't cheap. Would hire them again because the work is solid. "

Isaiah R on August 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

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

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!

Near Me Roofing Company

2727 152nd Avenue Northeast
5.00(
65
)
•Approved Pro

Near Me Roofing Company

2727 152nd Avenue Northeast
5.00(
65
)
•Approved Pro
Customers say: Quick response
13 local quotes requested
13 years of experience

Near Me Roofing Company is a Seattle-based roofing company that has an outstanding reputation for high quality performance and a strong work ethic. Our local roofing experts bring our clients years of experience and deliver a solid final product on any type of project, either residential or commercial. Near Me Roofing Company is 100% family-owned and we have been serving the Greater Seattle community for over 5 years. Our mission is to serve our clients with the finest customer care, excellent products and a superior result, at fair and affordable prices. Give us a call today to book your free estimate with Near Me Roofing Company.

"I had a huge hole in my roof and we had rain for days! Ari and Elijah showed my video of how bad the damage was, he was transparent with the process and mobilized the team quickly to make the repairs before the rain. Great work"

neeve j on April 2022

Near Me Roofing Company is a Seattle-based roofing company that has an outstanding reputation for high quality performance and a strong work ethic. Our local roofing experts bring our clients years of experience and deliver a solid final product on any type of project, either residential or commercial. Near Me Roofing Company is 100% family-owned and we have been serving the Greater Seattle community for over 5 years. Our mission is to serve our clients with the finest customer care, excellent products and a superior result, at fair and affordable prices. Give us a call today to book your free estimate with Near Me Roofing Company.

"I had a huge hole in my roof and we had rain for days! Ari and Elijah showed my video of how bad the damage was, he was transparent with the process and mobilized the team quickly to make the repairs before the rain. Great work"

neeve j on April 2022

Paul Haugen Construction LLC

8002 58th. Ave. NW
4.47(
142
)
•Approved Pro

Paul Haugen Construction LLC

8002 58th. Ave. NW
4.47(
142
)
•Approved Pro
Customers say: Quality work
353 local quotes requested
40 years of experience

We are a small company with4-9 employees. Our focus is on new custom construction, kitchen and bath remodel, additons, concrete stamping and coloring and tiling. License and bonded subcontractors are used in new construction and major re-models. We offer free estimates, and prefer to work with our customers in all design work. We have an excellent line of reasonably priced cabinets and granite counter tops. We are customer oriented and aim to please.

"Jared Lord, owner of Paul Haugen Construction, and his crew are outstanding. They are dependable, honest and do excellent work. Jared's labor and countertop cost for our project was $21, 473,65 (appx. $9K under budget). Our new cabinets, sink, stove top, range hood, tile and garbage disposal were separate costs that we paid for. Regardless, the total cost was below $50K for our beautiful and functional new kitchen."

joanne c on July 2023

We are a small company with4-9 employees. Our focus is on new custom construction, kitchen and bath remodel, additons, concrete stamping and coloring and tiling. License and bonded subcontractors are used in new construction and major re-models. We offer free estimates, and prefer to work with our customers in all design work. We have an excellent line of reasonably priced cabinets and granite counter tops. We are customer oriented and aim to please.

"Jared Lord, owner of Paul Haugen Construction, and his crew are outstanding. They are dependable, honest and do excellent work. Jared's labor and countertop cost for our project was $21, 473,65 (appx. $9K under budget). Our new cabinets, sink, stove top, range hood, tile and garbage disposal were separate costs that we paid for. Regardless, the total cost was below $50K for our beautiful and functional new kitchen."

joanne c on July 2023

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FAQs for addition to existing structure building service projects in Dupont, 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 Dupont, 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.

See all articles
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