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Find Addition to existing structure builders in Mountlake Terrace

Platinum General Construction LLC

5.00(
6
)
Approved Pro

Platinum General Construction LLC

5.00(
6
)
Approved Pro
Customers say: Quick response
10 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!

"Look in pictures for my review "

Alicia G on August 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!

"Look in pictures for my review "

Alicia G on August 2025


Greg Appert Construction

5.00(
1
)
Approved Pro

Greg Appert Construction

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
30 years of experience

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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

Glenn B on January 2021

We take great pride in our 5 plus years of experience, expertise, quality, and customer service that we provide to meet the consumer needs. It is our mission to provide excellent quality workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

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

Glenn B on January 2021


Avatar for Northwest Builders & Renovation, Inc.

Northwest Builders & Renovation, Inc.

4.51(
41
)
Approved Pro

Northwest Builders & Renovation, Inc.

4.51(
41
)
Approved Pro
Customers say: Super punctual
77 local quotes requested
11 years of experience

With over 20 years of experience, Northwest Builders & Renovation delivers top-quality roofing, siding, decks, gutters, and remodeling services across Renton, WA, Portland, the East San Francisco Bay Area, and San Diego. Licensed and trusted, our team brings innovation, craftsmanship, and integrity to every project — from custom remodels to complete home transformations. 📍 Renton, WA | Portland, OR | East Bay, CA | San Diego, CA 📞 WA (206) 350-6331 | OR (503) 713-6048 | CA (925) 407-4616 / (442) 291-2226

"Deck & Porch Repair. The work was high quality and made it pretty easy for me to tell them what needed to be done. They are an amazing company to work with."

Benny B on December 2025

With over 20 years of experience, Northwest Builders & Renovation delivers top-quality roofing, siding, decks, gutters, and remodeling services across Renton, WA, Portland, the East San Francisco Bay Area, and San Diego. Licensed and trusted, our team brings innovation, craftsmanship, and integrity to every project — from custom remodels to complete home transformations. 📍 Renton, WA | Portland, OR | East Bay, CA | San Diego, CA 📞 WA (206) 350-6331 | OR (503) 713-6048 | CA (925) 407-4616 / (442) 291-2226

"Deck & Porch Repair. The work was high quality and made it pretty easy for me to tell them what needed to be done. They are an amazing company to work with."

Benny B on December 2025


Avatar for JL Remodeling Inc

JL Remodeling Inc

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

JL Remodeling Inc

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
24 years of experience

JL Remodeling, based in Lynnwood, is a trusted home renovation company specializing in kitchen, bathroom, and whole-home remodels. Our mission is to create quality products through skill, communication and customer service, while giving back to our local and out-of-country communities. Since 2001, we have been dedicated to transforming homes with quality craftsmanship and personalized design solutions. Our experienced team prioritizes client satisfaction, working closely with homeowners to bring their visions to life. From initial consultation to final touches, JL Remodeling ensures a seamless and enjoyable remodeling experience, enhancing the beauty and functionality of every space.

JL Remodeling, based in Lynnwood, is a trusted home renovation company specializing in kitchen, bathroom, and whole-home remodels. Our mission is to create quality products through skill, communication and customer service, while giving back to our local and out-of-country communities. Since 2001, we have been dedicated to transforming homes with quality craftsmanship and personalized design solutions. Our experienced team prioritizes client satisfaction, working closely with homeowners to bring their visions to life. From initial consultation to final touches, JL Remodeling ensures a seamless and enjoyable remodeling experience, enhancing the beauty and functionality of every space.


Excel General Contractor, LLC

4.86(
76
)
Approved Pro

Excel General Contractor, LLC

4.86(
76
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
12 local quotes requested

Excel General Contractor is a full service home remodeling and construction contractor. We offer a high level of customer service while maintaining fair pricing. Our team is small enough that you get individualized attention but big enough to get your project done effectively and efficiently. We do all projects from small repairs and renovations up to designing and building you a complete new custom home.

"Nate allowed me to order my bathtub myself, which was nice. Lowe's failing to deliver when promised, was not. This delayed the start, and although it did take longer than I expected, everything came out great. They did not charge me extra after the water damage was exposed, which was a relief. One of the other estimates I got from a general contractor was for 3x as much, AND they planned to add on after the wall was opened. The bathroom specialists wanted 150% of what we paid, and I think we ended up with better results."

Christopher B on March 2025

Excel General Contractor is a full service home remodeling and construction contractor. We offer a high level of customer service while maintaining fair pricing. Our team is small enough that you get individualized attention but big enough to get your project done effectively and efficiently. We do all projects from small repairs and renovations up to designing and building you a complete new custom home.

"Nate allowed me to order my bathtub myself, which was nice. Lowe's failing to deliver when promised, was not. This delayed the start, and although it did take longer than I expected, everything came out great. They did not charge me extra after the water damage was exposed, which was a relief. One of the other estimates I got from a general contractor was for 3x as much, AND they planned to add on after the wall was opened. The bathroom specialists wanted 150% of what we paid, and I think we ended up with better results."

Christopher B on March 2025


Avatar for Okay Construction LLC

Okay Construction LLC

5.00(
4
)
Approved Pro

Okay Construction LLC

5.00(
4
)
Approved Pro
6 years of experience
Free onsite estimate

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

"I had Okay Construction renovate my entire house, including the kitchen. They also changed the electrical panel, all floors, windows, and doors; built new stairs; and installed several skylights. They can do pretty much anything you ask. Bo is very easy to communicate and work with. We needed to move in from another state, and he made sure my second floor was ready when we needed to move by having many staff members work long hours and on weekends. They turned my old house into a beautiful, bright home. Bo can recommend where to look for renovation materials and where to get contractor pricing. We applied for permits for all major projects, and Bo took care of them for us. They also have a warranty, so if anything goes wrong, he'd be happy to come back and fix it. Bo keeps his promises and is very patient. One of our ovens wasn't working right out of the box, and he took it out and re-installed it (and the replacement) many times. He also has many good ideas for small touch-up project"

Lynn X on October 2025

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

"I had Okay Construction renovate my entire house, including the kitchen. They also changed the electrical panel, all floors, windows, and doors; built new stairs; and installed several skylights. They can do pretty much anything you ask. Bo is very easy to communicate and work with. We needed to move in from another state, and he made sure my second floor was ready when we needed to move by having many staff members work long hours and on weekends. They turned my old house into a beautiful, bright home. Bo can recommend where to look for renovation materials and where to get contractor pricing. We applied for permits for all major projects, and Bo took care of them for us. They also have a warranty, so if anything goes wrong, he'd be happy to come back and fix it. Bo keeps his promises and is very patient. One of our ovens wasn't working right out of the box, and he took it out and re-installed it (and the replacement) many times. He also has many good ideas for small touch-up project"

Lynn X on October 2025


Avatar for Topaz Remodeling, Inc.

Topaz Remodeling, Inc.

5.00(
94
)
Approved Pro

Topaz Remodeling, Inc.

5.00(
94
)
Approved Pro
Super Service Award
Customers say: Quality work
155 local quotes requested
12 years of experience

Welcome to Topaz Remodeling Inc, where we believe that building your vision is our mission! We are a premier construction company with a passion for creating quality spaces that enhance your daily life. Whether you're dreaming of a new custom home or a stunning renovation our team of experienced professionals is here to guide you through every step of the process. Topaz Remodeling Inc. has been serving the community for 25 years and We believe that our family-owned status gives us a unique advantage in the construction industry, as we are able to provide a level of personal attention and care that larger, corporate companies simply cannot match We understand that each construction project is more than just a job; it's an investment in your home or business. That's why we take great pride in our work and are committed to delivering the highest level of quality and craftsmanship on every project we undertake.

"We recently remodeled our kitchen and couldn't be happier with the result. From the layout planning to the final finishes, everything was handled with care and professionalism. The team paid close attention to details, kept the space clean throughout the project, and made sure the work stayed on schedule. The kitchen feels completely new, functional, and beautifully finished. It truly became the heart of our home, and we would highly recommend them for any kitchen renovation."

Maxwell r on December 2025

Welcome to Topaz Remodeling Inc, where we believe that building your vision is our mission! We are a premier construction company with a passion for creating quality spaces that enhance your daily life. Whether you're dreaming of a new custom home or a stunning renovation our team of experienced professionals is here to guide you through every step of the process. Topaz Remodeling Inc. has been serving the community for 25 years and We believe that our family-owned status gives us a unique advantage in the construction industry, as we are able to provide a level of personal attention and care that larger, corporate companies simply cannot match We understand that each construction project is more than just a job; it's an investment in your home or business. That's why we take great pride in our work and are committed to delivering the highest level of quality and craftsmanship on every project we undertake.

"We recently remodeled our kitchen and couldn't be happier with the result. From the layout planning to the final finishes, everything was handled with care and professionalism. The team paid close attention to details, kept the space clean throughout the project, and made sure the work stayed on schedule. The kitchen feels completely new, functional, and beautifully finished. It truly became the heart of our home, and we would highly recommend them for any kitchen renovation."

Maxwell r on December 2025


Avatar for Renovate Design/Build

Renovate Design/Build

5.00(
13
)
Approved Pro

Renovate Design/Build

5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
8 years of experience

Renovate Design/Build is a woman-owned family business servicing the Greater Seattle Area. Each person on our team is an integral part of our company's success, providing excellent service and beautifully finished remodel projects for our clients. As a small business, every job is important to our team at Renovate - you are never just a number. Please call us today for a free consultation!

"We worked with Renovate from August 2024 through April 2025. Our experience was exceptional. Ross, Eric, and Jeremiah were efficient and effective, treating our project with great care. The Renovate team stands out in several ways: - Their pricing is transparent. We paid an hourly cost and subcontractor costs, plus a fixed mark-up, which aligned incentives. Amanda provided receipts and timesheets regularly. - They have superb attention to detail. They pointed out issues we might have missed and ensured they were fixed. - They were super responsive, encouraging us to text or email any time and often responding quickly. They kept us updated on the timeline and explained any delays. - They have a strong client focus. They addressed subcontractor errors quickly and reminded us to ask for what we wanted, even if non-standard. They provided recommendations but let us make the final decisions. We highly recommend the Renovate team. For our more detailed review, see Google."

Mark V on May 2025

Renovate Design/Build is a woman-owned family business servicing the Greater Seattle Area. Each person on our team is an integral part of our company's success, providing excellent service and beautifully finished remodel projects for our clients. As a small business, every job is important to our team at Renovate - you are never just a number. Please call us today for a free consultation!

"We worked with Renovate from August 2024 through April 2025. Our experience was exceptional. Ross, Eric, and Jeremiah were efficient and effective, treating our project with great care. The Renovate team stands out in several ways: - Their pricing is transparent. We paid an hourly cost and subcontractor costs, plus a fixed mark-up, which aligned incentives. Amanda provided receipts and timesheets regularly. - They have superb attention to detail. They pointed out issues we might have missed and ensured they were fixed. - They were super responsive, encouraging us to text or email any time and often responding quickly. They kept us updated on the timeline and explained any delays. - They have a strong client focus. They addressed subcontractor errors quickly and reminded us to ask for what we wanted, even if non-standard. They provided recommendations but let us make the final decisions. We highly recommend the Renovate team. For our more detailed review, see Google."

Mark V on May 2025


Avatar for Vic Steiner Carpentry Inc

Vic Steiner Carpentry Inc

4.88(
51
)
Approved Pro

Vic Steiner Carpentry Inc

4.88(
51
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
13 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 Cox Custom Remodeling, LLC.

Cox Custom Remodeling, LLC.

4.95(
42
)
Approved Pro

Cox Custom Remodeling, LLC.

4.95(
42
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
50 local quotes requested

Cox Custom Remodeling opened its doors in 2009, when the economy was dealing the construction trade its blows, and remodeling work was hard to find. We have been a company on the grow ever since. Our clients appreciate our candid attitude and straight up pricing. James and his crew offer master carpentry in all areas of home improvement. With over a decade of experience, James will provide you with the skill, quality craftsmanship, organization, and professionalism, that is needed to bring your home improvement vision to realization. James has an excellent relationship with a variety of home improvement subcontractors and a local lumber yard & home improvement store. Cox Custom Remodeling is your one call provider for any construction & remodeling venture. Also serving surrounding areas in Puget Sound.

"James and his crew at Cox Custom Remodeling did a great job with our bathroom remodel. Our house was built in 1900 and the nonstandard framing made things more complicated. His lead, Dan was particularly great, taking the extra time to understand components we picked that were new to him. James always had a positive attitude, showed up when he indicated and got things done. Low dust, protection for floors and respect for the rest of the house while the construction was going on. James also provided the best tile guy, Eugene, that did a fantastic job with natural stone and the complicated very fragile mosaic. We would definitely use Cox Custom Remodeling again. Great job guys!"

Jay P on June 2021

Cox Custom Remodeling opened its doors in 2009, when the economy was dealing the construction trade its blows, and remodeling work was hard to find. We have been a company on the grow ever since. Our clients appreciate our candid attitude and straight up pricing. James and his crew offer master carpentry in all areas of home improvement. With over a decade of experience, James will provide you with the skill, quality craftsmanship, organization, and professionalism, that is needed to bring your home improvement vision to realization. James has an excellent relationship with a variety of home improvement subcontractors and a local lumber yard & home improvement store. Cox Custom Remodeling is your one call provider for any construction & remodeling venture. Also serving surrounding areas in Puget Sound.

"James and his crew at Cox Custom Remodeling did a great job with our bathroom remodel. Our house was built in 1900 and the nonstandard framing made things more complicated. His lead, Dan was particularly great, taking the extra time to understand components we picked that were new to him. James always had a positive attitude, showed up when he indicated and got things done. Low dust, protection for floors and respect for the rest of the house while the construction was going on. James also provided the best tile guy, Eugene, that did a fantastic job with natural stone and the complicated very fragile mosaic. We would definitely use Cox Custom Remodeling again. Great job guys!"

Jay P on June 2021

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

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Mountlake Terrace, 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.