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Addition to existing structure builders in Vashon

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


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


MNBE Construction And Development LLC
2014 Fairview Ave Apt 2308
New on HomeAdvisorNew on Angi
Approved Pro
MNBE Construction And Development LLC
2014 Fairview Ave Apt 2308
New on AngiNew on HomeAdvisor
Approved Pro
2 years of experience
Free onsite estimate

MNBE Construction And Development 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. 17+ years of 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.

MNBE Construction And Development 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. 17+ years of 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.


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 Classic Remodeling NW Inc
Classic Remodeling NW Inc
9502 19th Ave SE
4.54(
41
)
Approved Pro
Classic Remodeling NW Inc
9502 19th Ave SE
4.54(
41
)
Approved Pro
Customers say: Quality work
360 local quotes requested
16 years of experience

At Classic Remodeling NW. Inc. our mission is to build lifelong family relationships with our clients, co-workers and community neighborhoods through the remodeling process. Our guiding principles are those of commitment, honesty and personal accountability through a high level of communication and respect for one another. We can build or remodel any part of your house to make your dreams come true! Communication is a tool we use every day to make sure we know what you want. We keep your home neat and clean the entire time we are working and make sure that your satisfied. With Classic Remodeling NW Inc., you are not just a customer, you are family. Our team gets to know you personally so we can make sure your dream will come to life and you will be more than satisfied with the results, and the cost! We build our team on "Honesty, Ethics, and Morals". Let us show you the Classic Remodeling NW Inc. difference!

"I am a repeat customer, so I knew the carpenter, Joe, coming in. I started by using their design contractor. I gave her the colors and ideas (beach theme, ceramic wood-look floor tiles), and she pulled the rest together. Invaluable because I can't trust my own taste. They removed a square shower in the corner and a set of shelves next to it, and glassed in that end of the room for a full shower. We put tile down along the whole room, with a recessed shower pan, and a linear drain against the wall. Joe built-in medicine cabinets, and trim all around the room, per my design pictures. The subs included a glass door guy, the plumber, the tiler, painter, and the countertop slab tiler. We also had some work done in our hallway. They removed the single boob light from the middle, and installed two recessed lights on either end, along with putting two switch boxes on either end of the hallway. Joe built a floor to ceiling cabinet in a 13” dead space at the end of the hallway, which included a laundry hamper on tracks, cubbies, and shelves. And then on a whim, I asked to have our old hallway linen cupboard doors replaced to match the new ones. We had two leaks during and after, but one reason I would use them again, is how they handled both times. One was a leak from the plug on the toilet supply. We found it on a Saturday morning, and I ended up waking up our carpenter with my text. He came out and figured it out and fixed it by 1. The other one was after everything was done and cleaned up, and we had paid for everything. The basement bathroom ceiling, fan, and wall below the master was wet one day, and we realized a joint in the pipe from the master toilet to the stack was slowly dripping between the two rooms. I texted Joe again, and he referred me to our GC, who came out with a plumber and fixed it. They had to make a hole in the downstairs drywall, so he has been coming back regularly to put three layers of mud on the new drywall. I was so sure that they would regretfully find that it wasn't their fault and we would have to deal with the cost and bother of finding a plumber and carpenter. Start to finish, it took about four months, but three weeks of that was the initial tile order, and another three for an incorrect tile order."

JOELLE B on March 2019

At Classic Remodeling NW. Inc. our mission is to build lifelong family relationships with our clients, co-workers and community neighborhoods through the remodeling process. Our guiding principles are those of commitment, honesty and personal accountability through a high level of communication and respect for one another. We can build or remodel any part of your house to make your dreams come true! Communication is a tool we use every day to make sure we know what you want. We keep your home neat and clean the entire time we are working and make sure that your satisfied. With Classic Remodeling NW Inc., you are not just a customer, you are family. Our team gets to know you personally so we can make sure your dream will come to life and you will be more than satisfied with the results, and the cost! We build our team on "Honesty, Ethics, and Morals". Let us show you the Classic Remodeling NW Inc. difference!

"I am a repeat customer, so I knew the carpenter, Joe, coming in. I started by using their design contractor. I gave her the colors and ideas (beach theme, ceramic wood-look floor tiles), and she pulled the rest together. Invaluable because I can't trust my own taste. They removed a square shower in the corner and a set of shelves next to it, and glassed in that end of the room for a full shower. We put tile down along the whole room, with a recessed shower pan, and a linear drain against the wall. Joe built-in medicine cabinets, and trim all around the room, per my design pictures. The subs included a glass door guy, the plumber, the tiler, painter, and the countertop slab tiler. We also had some work done in our hallway. They removed the single boob light from the middle, and installed two recessed lights on either end, along with putting two switch boxes on either end of the hallway. Joe built a floor to ceiling cabinet in a 13” dead space at the end of the hallway, which included a laundry hamper on tracks, cubbies, and shelves. And then on a whim, I asked to have our old hallway linen cupboard doors replaced to match the new ones. We had two leaks during and after, but one reason I would use them again, is how they handled both times. One was a leak from the plug on the toilet supply. We found it on a Saturday morning, and I ended up waking up our carpenter with my text. He came out and figured it out and fixed it by 1. The other one was after everything was done and cleaned up, and we had paid for everything. The basement bathroom ceiling, fan, and wall below the master was wet one day, and we realized a joint in the pipe from the master toilet to the stack was slowly dripping between the two rooms. I texted Joe again, and he referred me to our GC, who came out with a plumber and fixed it. They had to make a hole in the downstairs drywall, so he has been coming back regularly to put three layers of mud on the new drywall. I was so sure that they would regretfully find that it wasn't their fault and we would have to deal with the cost and bother of finding a plumber and carpenter. Start to finish, it took about four months, but three weeks of that was the initial tile order, and another three for an incorrect tile order."

JOELLE B on March 2019


Avatar for RICCON CONSTRUCTION LLC
RICCON CONSTRUCTION LLC
16821 72ND AVE NE
4.37(
19
)
Approved Pro
RICCON CONSTRUCTION LLC
16821 72ND AVE NE
4.37(
19
)
Approved Pro
Customers say: Quality work
708 local quotes requested
18 years of experience

Riccon Construction LLC is a Licensed & Insured General Contractor serving King & Snohomish County. We serve both residential and commercial customers and are listed with the Better Business Bureau. We offer quality craftsmanship at an affordable cost and treat every customer like family. We provide free estimates and are happy to meet you in person to discuss your next project.

"Fast, efficient and high quality workmanship. Jeff, Jon and their team were highly communicative and knowledgeable about our home remodel project. Will definitely be using them again!"

Bella K on February 2024

Riccon Construction LLC is a Licensed & Insured General Contractor serving King & Snohomish County. We serve both residential and commercial customers and are listed with the Better Business Bureau. We offer quality craftsmanship at an affordable cost and treat every customer like family. We provide free estimates and are happy to meet you in person to discuss your next project.

"Fast, efficient and high quality workmanship. Jeff, Jon and their team were highly communicative and knowledgeable about our home remodel project. Will definitely be using them again!"

Bella K on February 2024


Avatar for Vic Steiner Carpentry Inc
Vic Steiner Carpentry Inc
4701 237th Pl SW
4.82(
56
)
Approved Pro
Vic Steiner Carpentry Inc
4701 237th Pl SW
4.82(
56
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
676 local quotes requested

I am an Owner Operator with 39 continuous years in the construction field and 19 years in business as Vic Steiner Carpentry. Over these years as an employee of other construction companies and being self employed, I have mastered all of the trades that are involved in residential remodeling and perform all of the work myself. I will present a firm bid in a contract, including sales tax and payment schedule. Attached to the contract is a very detailed Work Specifications list that specifies every detail of the work I am bidding on. I am listed with Washington State as a certified Lead Paint Renovator and certified in Wedi tile substrate installation. Pictures of work I have done and a list of references are available on my web site at vicsteinercarpentry.com

"Vic does amazing finish work! The overall project went well and Vic worked with us to totally revamp our bathroom while helping us find the right level of customization to meet our budget. Vic was easy to work with and you can tell that he takes pride in his work. I would whole heartedly recommend Vic for any bathroom projects!"

Molly W on March 2024

I am an Owner Operator with 39 continuous years in the construction field and 19 years in business as Vic Steiner Carpentry. Over these years as an employee of other construction companies and being self employed, I have mastered all of the trades that are involved in residential remodeling and perform all of the work myself. I will present a firm bid in a contract, including sales tax and payment schedule. Attached to the contract is a very detailed Work Specifications list that specifies every detail of the work I am bidding on. I am listed with Washington State as a certified Lead Paint Renovator and certified in Wedi tile substrate installation. Pictures of work I have done and a list of references are available on my web site at vicsteinercarpentry.com

"Vic does amazing finish work! The overall project went well and Vic worked with us to totally revamp our bathroom while helping us find the right level of customization to meet our budget. Vic was easy to work with and you can tell that he takes pride in his work. I would whole heartedly recommend Vic for any bathroom projects!"

Molly W on March 2024


Avatar for Ampro Builders Inc
Ampro Builders Inc
2348 Fawcett Ave
3.77(
13
)
Approved Pro
Ampro Builders Inc
2348 Fawcett Ave
3.77(
13
)
Approved Pro
Customers say: Quality work
566 local quotes requested
16 years of experience

Angie's List Members receive an automatic 10% discount from our posted pricing. Labor and material Non-prorated. Additional phone - (253)590-4425. In the Puget Sound Region Ampro Builders llc has become the trusted source for quality roofing, siding, windows, sunrooms and more. This is because Ampro Builders llc has stood the test of time with over thirty years in the home improvement industry providing high levels of customer service, industry leading warranties and unmatched workmanship. Over the years we have heard many horror stories associated with contractors and home improvement. At Ampro we are different. Ampro has received “preferred contractor status” with the best-known product manufacturers allowing Ampro to offer the manufacturer’s best labor and material warranties. Ampro provides an unlimited original workmanship warranty on all installations in addition to the manufacturer’s warranties.. Complete customer satisfaction is assured by Ampro’s detailed work order which sets forth in writing all products and job specifications including the exact job price. Our main concern at Ampro is customer satisfaction and peace of mind.

"Great work and easy to work with!"

Michael S on March 2020

Angie's List Members receive an automatic 10% discount from our posted pricing. Labor and material Non-prorated. Additional phone - (253)590-4425. In the Puget Sound Region Ampro Builders llc has become the trusted source for quality roofing, siding, windows, sunrooms and more. This is because Ampro Builders llc has stood the test of time with over thirty years in the home improvement industry providing high levels of customer service, industry leading warranties and unmatched workmanship. Over the years we have heard many horror stories associated with contractors and home improvement. At Ampro we are different. Ampro has received “preferred contractor status” with the best-known product manufacturers allowing Ampro to offer the manufacturer’s best labor and material warranties. Ampro provides an unlimited original workmanship warranty on all installations in addition to the manufacturer’s warranties.. Complete customer satisfaction is assured by Ampro’s detailed work order which sets forth in writing all products and job specifications including the exact job price. Our main concern at Ampro is customer satisfaction and peace of mind.

"Great work and easy to work with!"

Michael S on March 2020


Avatar for Luxury Bath of Seattle Inc
Luxury Bath of Seattle Inc
18388 REDMOND WAY
4.42(
60
)
Approved Pro
Luxury Bath of Seattle Inc
18388 REDMOND WAY
4.42(
60
)
Approved Pro
Customers say: Quality work
1568 local quotes requested
24 years of experience

Are you looking for home improvement or bathroom remodeling advice? Luxury Bath is privately owned and been in business for over 15 years. It is the number one trusted resource for customers looking to update their bathroom or have a complete bathroom remodel. If you’re wanting advice on how to make your bathroom larger, how to remodel on a budget, or even looking for a local bathroom remodeler, Luxury Bath has the answers to all your remodeling questions. Open showroom available in Redmond too!!!!

"The people at Luxury Bath were knowledgeable about what would fit our space and needs. They helped with the planning and placement of the shower, window, cupboards, and bidet in our complete bathroom remodel. Their quote was very reasonable. They were able to do each of the jobs without hiring an outside contractor. They were very timely, committed to our project from start to finish. We were able to do the major renovation within two weeks. The workers were very courteous, friendly, and were able to answer questions we had. They gave us the present of a beautiful new bathroom, satisfying. Our needs is aging adults."

Janet J on March 2025

Are you looking for home improvement or bathroom remodeling advice? Luxury Bath is privately owned and been in business for over 15 years. It is the number one trusted resource for customers looking to update their bathroom or have a complete bathroom remodel. If you’re wanting advice on how to make your bathroom larger, how to remodel on a budget, or even looking for a local bathroom remodeler, Luxury Bath has the answers to all your remodeling questions. Open showroom available in Redmond too!!!!

"The people at Luxury Bath were knowledgeable about what would fit our space and needs. They helped with the planning and placement of the shower, window, cupboards, and bidet in our complete bathroom remodel. Their quote was very reasonable. They were able to do each of the jobs without hiring an outside contractor. They were very timely, committed to our project from start to finish. We were able to do the major renovation within two weeks. The workers were very courteous, friendly, and were able to answer questions we had. They gave us the present of a beautiful new bathroom, satisfying. Our needs is aging adults."

Janet J on March 2025


Avatar for ACS Seattle LLC
ACS Seattle LLC
4742 42nd Ave SW
4.31(
13
)
Approved Pro
ACS Seattle LLC
4742 42nd Ave SW
4.31(
13
)
Approved Pro
Customers say: Quick response
330 local quotes requested
34 years of experience

We design and build additions, home remodeling, remodel kitchens, baths and basements in the greater Puget Sound area. Specialties in concrete foundation leveling, patio and retaining wall installations, framing, replacing windows, siding. Employ 6-10 long time (8yr avg)people. Electrical and Plumbing is subcontracted to long time trusted licensed and reliable subcontractors. Fixed Bid proposals. No travel charge. WA General Contractors license: ACSSESL922BT. As the owner, Gary Gutierrez personally oversees each project with the help of dedicated lead carpenters assigned to each project. Our Focus is on your satisfaction.

"The end result is good. Not a large crew, so the time it took to complete was longer than average. Workmanship of the main person who worked the project was great. Responsive crew, will address and resolve any concerns you may have."

Ruth K on October 2024

We design and build additions, home remodeling, remodel kitchens, baths and basements in the greater Puget Sound area. Specialties in concrete foundation leveling, patio and retaining wall installations, framing, replacing windows, siding. Employ 6-10 long time (8yr avg)people. Electrical and Plumbing is subcontracted to long time trusted licensed and reliable subcontractors. Fixed Bid proposals. No travel charge. WA General Contractors license: ACSSESL922BT. As the owner, Gary Gutierrez personally oversees each project with the help of dedicated lead carpenters assigned to each project. Our Focus is on your satisfaction.

"The end result is good. Not a large crew, so the time it took to complete was longer than average. Workmanship of the main person who worked the project was great. Responsive crew, will address and resolve any concerns you may have."

Ruth K on October 2024

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