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Find Addition to existing structure builders in Hobart

Design Build NW, LLC

5.00(
6
)
Approved Pro

Design Build NW, LLC

5.00(
6
)
Approved Pro
Customers say: Quick response
11 local quotes requested
33 years of experience

Design Build - Home Plans NW proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. Locally owned and serving the Pacific NW for going on 30 years! We Listen, We Communicate Part of good communication is listening, and that’s what we do with phone calls or face-to-face meetings. Architectural Design & Build With architectural design and structural engineering costing $6,000 – $14,000, we create all designs with our “in-house” team. We've Build Over 5,000 Homes Our team’s background is in both residential remodeling as well as custom home construction with more than 100 years experience. If we can build thousands of Northwest custom homes, imagine what we can do for you. Why Us? Our Promise * Finish what we start and follow-through * Listen to your needs and communicate timely * Give you price competitive services * Maintain a high-level of quality

"We are just beginning. So far I as very impressed and confident that tge project will go forward smoothly"

Marci M on January 2023

Design Build - Home Plans NW proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. Locally owned and serving the Pacific NW for going on 30 years! We Listen, We Communicate Part of good communication is listening, and that’s what we do with phone calls or face-to-face meetings. Architectural Design & Build With architectural design and structural engineering costing $6,000 – $14,000, we create all designs with our “in-house” team. We've Build Over 5,000 Homes Our team’s background is in both residential remodeling as well as custom home construction with more than 100 years experience. If we can build thousands of Northwest custom homes, imagine what we can do for you. Why Us? Our Promise * Finish what we start and follow-through * Listen to your needs and communicate timely * Give you price competitive services * Maintain a high-level of quality

"We are just beginning. So far I as very impressed and confident that tge project will go forward smoothly"

Marci M on January 2023


Avatar for Topline Builders and Renovation, LLC

Topline Builders and Renovation, LLC

5.00(
12
)
Approved Pro

Topline Builders and Renovation, LLC

5.00(
12
)
Approved Pro
6 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.

"We completed a major home addition and partial remodel with Topline Builders and Renovations. From permits to final walkthrough, Ben, Nathan, and Sean maintained professionalism and quality craftsmanship. If you?re planning an addition, ADU, garage conversion, or kitchen remodel, this is the construction company you want on your side."

Virgil B on February 2026

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.

"We completed a major home addition and partial remodel with Topline Builders and Renovations. From permits to final walkthrough, Ben, Nathan, and Sean maintained professionalism and quality craftsmanship. If you?re planning an addition, ADU, garage conversion, or kitchen remodel, this is the construction company you want on your side."

Virgil B on February 2026


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


Avatar for Treiber Building, LLC

Treiber Building, LLC

4.94(
8
)
Approved Pro

Treiber Building, LLC

4.94(
8
)
Approved Pro
Customers say: Quick response
10 years of experience
Free onsite estimate

We pride our company on 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. We look forward to earning your business! Book with us online or feel free to give us a call today!

"I interviewed several contractors for my addition and addition and I chose Andrew because I felt like he was straightforward with the project and the risks that come with a remodel of an 80 year old house along with the primary suite addition. Through the design phase, we never felt pressured to make decisions, but were kept informed of the timing of the project and when we needed to make decisions in order to schedule the project in a way that minimized the impact to our family. Andrew walked us through each item in the contract and worked with us to make changes to fit our budget and kept us informed on what we could expect for changes for a project like ours. Once we were out on contract, Andrew helped push permits through county and kept us informed on what we could expect for duration and timing of the project. Once the work began, Andrew and his right hand man Rod worked efficiently and coordinated the project beautifully to minimize the amount of time that we were displaced from our home. Thoughtful suggestions were made to deal with the numerous issues that come with renovating an 80 year old house and Andrew supported my questions on cost impact and the criticality of each change to keep me informed so that we could make decisions that we felt comfortable with. Andrew and his team of subcontractors were all very friendly and respectful of our family, never making myself, my wife, or 3 kids feel unsafe at any time. Even with the changes to the scope of work, Andrew and his team made good on the timeline of the project, completing everything in 3-4 months as promised when we started. The layout and design of the remodel and addition have surpassed our expectations, everything that we did has really made our home both more beautiful and more functional. I would highly recommend Treiber Building and have done so to several family members and colleagues at work. The experience was as positive as I couldâ ve hoped and the results are outstanding."

William S on April 2023

We pride our company on 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. We look forward to earning your business! Book with us online or feel free to give us a call today!

"I interviewed several contractors for my addition and addition and I chose Andrew because I felt like he was straightforward with the project and the risks that come with a remodel of an 80 year old house along with the primary suite addition. Through the design phase, we never felt pressured to make decisions, but were kept informed of the timing of the project and when we needed to make decisions in order to schedule the project in a way that minimized the impact to our family. Andrew walked us through each item in the contract and worked with us to make changes to fit our budget and kept us informed on what we could expect for changes for a project like ours. Once we were out on contract, Andrew helped push permits through county and kept us informed on what we could expect for duration and timing of the project. Once the work began, Andrew and his right hand man Rod worked efficiently and coordinated the project beautifully to minimize the amount of time that we were displaced from our home. Thoughtful suggestions were made to deal with the numerous issues that come with renovating an 80 year old house and Andrew supported my questions on cost impact and the criticality of each change to keep me informed so that we could make decisions that we felt comfortable with. Andrew and his team of subcontractors were all very friendly and respectful of our family, never making myself, my wife, or 3 kids feel unsafe at any time. Even with the changes to the scope of work, Andrew and his team made good on the timeline of the project, completing everything in 3-4 months as promised when we started. The layout and design of the remodel and addition have surpassed our expectations, everything that we did has really made our home both more beautiful and more functional. I would highly recommend Treiber Building and have done so to several family members and colleagues at work. The experience was as positive as I couldâ ve hoped and the results are outstanding."

William S on April 2023


Ace Remodeling, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Ace Remodeling, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
5 years of experience
Free onsite estimate

ACE REMODELING is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with 23 years of industry experience, is what makes us true professionals. Above all, we are mindful of our client's interests, and make their concerns the basis of our business.

ACE REMODELING is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with 23 years of industry experience, is what makes us true professionals. Above all, we are mindful of our client's interests, and make their concerns the basis of our business.


Greg Appert Construction

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 Topaz Remodeling, Inc.

Topaz Remodeling, Inc.

5.00(
108
)
Approved Pro

Topaz Remodeling, Inc.

5.00(
108
)
Approved Pro
Super Service Award
Customers say: Quality work
137 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.

"Renovating a home can be stressful, but this team made the entire experience smooth and exciting. They truly listened to what we wanted and helped bring our vision to life. Every room feels thoughtfully designed and carefully built. The attention to small details, the clean job site, and the respectful attitude of the crew made such a difference. Walking into our "new" home for the first time after the renovation was an emotional moment. We couldn't be happier with the outcome and are so grateful we chose them. "

nubia t on February 2026

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.

"Renovating a home can be stressful, but this team made the entire experience smooth and exciting. They truly listened to what we wanted and helped bring our vision to life. Every room feels thoughtfully designed and carefully built. The attention to small details, the clean job site, and the respectful attitude of the crew made such a difference. Walking into our "new" home for the first time after the renovation was an emotional moment. We couldn't be happier with the outcome and are so grateful we chose them. "

nubia t on February 2026


Avatar for Johnson Custom Builders

Johnson Custom Builders

4.95(
62
)
Approved Pro

Johnson Custom Builders

4.95(
62
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
15 years of experience

Current Super Service Award Winner for 2019 seven years running! Johnson Custom Builders is a Design Builder. Our approach is simple. It all starts with listening. We work closely with our clients to understand everything from their needs to their design preferences. Then we go to work helping them exceed their goals. www.johnsoncustombuilders.com Our process is completely transparent. Our estimates are designed to provide realistic expectations not best-case scenarios. For us, communication is key and we keep you completely informed every step of the way communicating in a way that helps you anticipate and act to effectively engineer the best possible solutions every step of the way. At Johnson Custom Builders our approach is never just about managing timelines and budgets its about delivering on promises and helping you realize dreams. One look at a Johnson Custom build and you'll immediately understand why so many discriminating customers recommend us to their friends looking for a higher level of customized home building. It's not just about the attention to detail or use of the highest-quality materials or even the custom-crafted details. It's about the personalization. Personalization that comes from a builder that not only knows how to listen but also how to anticipate, communicate and most of all deliver on a promise. A native of Kirkland, Washington, founder Ryan Johnson shares the same core values as the community he has always called home: Integrity, Honesty and Originality. He's been actively designing, building and remodeling homes in the area for over 25 years. And in that time, he has earned a stellar reputation for providing outstanding results crafted with uncompromising integrity and quality. Hes also earned a reputation for delivering on his promises. A+ rating on the Better Business Bureau (BBB) !

"Since I now need to use a wheelchair, several doorways in my home needed to be widened. Two exterior doors had to be replaced, one of which also had to be changed to open out rather than opening in. I hired Johnson Custom Builders and was absolutely delighted with their work. They were always professional. They laid or hung plastic sheeting to contain the dust they created, then at the end of the day they ran the vacuum and even mopped the floor! They were respectful of me and my home. Their work was excellent. One of the things I most appreciated was Ryan Johnson's communication with me before, during, and at the conclusion of the project. He listened to what I needed and then figured out how to make it happen. I recommend Johnson Custom Builders highly!"

Gloria L R on February 2026

Current Super Service Award Winner for 2019 seven years running! Johnson Custom Builders is a Design Builder. Our approach is simple. It all starts with listening. We work closely with our clients to understand everything from their needs to their design preferences. Then we go to work helping them exceed their goals. www.johnsoncustombuilders.com Our process is completely transparent. Our estimates are designed to provide realistic expectations not best-case scenarios. For us, communication is key and we keep you completely informed every step of the way communicating in a way that helps you anticipate and act to effectively engineer the best possible solutions every step of the way. At Johnson Custom Builders our approach is never just about managing timelines and budgets its about delivering on promises and helping you realize dreams. One look at a Johnson Custom build and you'll immediately understand why so many discriminating customers recommend us to their friends looking for a higher level of customized home building. It's not just about the attention to detail or use of the highest-quality materials or even the custom-crafted details. It's about the personalization. Personalization that comes from a builder that not only knows how to listen but also how to anticipate, communicate and most of all deliver on a promise. A native of Kirkland, Washington, founder Ryan Johnson shares the same core values as the community he has always called home: Integrity, Honesty and Originality. He's been actively designing, building and remodeling homes in the area for over 25 years. And in that time, he has earned a stellar reputation for providing outstanding results crafted with uncompromising integrity and quality. Hes also earned a reputation for delivering on his promises. A+ rating on the Better Business Bureau (BBB) !

"Since I now need to use a wheelchair, several doorways in my home needed to be widened. Two exterior doors had to be replaced, one of which also had to be changed to open out rather than opening in. I hired Johnson Custom Builders and was absolutely delighted with their work. They were always professional. They laid or hung plastic sheeting to contain the dust they created, then at the end of the day they ran the vacuum and even mopped the floor! They were respectful of me and my home. Their work was excellent. One of the things I most appreciated was Ryan Johnson's communication with me before, during, and at the conclusion of the project. He listened to what I needed and then figured out how to make it happen. I recommend Johnson Custom Builders highly!"

Gloria L R on February 2026


Avatar for Carpenters Unlimited LLC

Carpenters Unlimited LLC

3.67(
3
)
Approved Pro

Carpenters Unlimited LLC

3.67(
3
)
Approved Pro
11 years of experience
Free onsite estimate

With over 16 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 including additions and full house renovations. We will treat your home as we would treat our own. Give Carpenters Unlimited LLC a call today, we look forward to working with you!

"Justin Gibbons owner of Carpenters Unlimited LLC brought an illegal employee to work on our project alone (claims no employees with WA L&I). When mistakes were made, Justin GIbbons blamed the employee, attempted to fix the errors, but did not succeed in fixing the errors. Based on the work Justin Gibbons and his company Carpenters Unlimited LLC provided, we would not recommend Justin Gibbons and his company Carpenters Unlimited LLC to family or friends or anyone else. The work Justin Gibbons and his company Carpenters Unlimited LLC provided was subpar, completed late, required many follow ups from us to get fixed, and resulted in damages. We are pursing a Small Claims case against Justin Gibbons. See photos for evidence."

Kate M on January 2026

With over 16 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 including additions and full house renovations. We will treat your home as we would treat our own. Give Carpenters Unlimited LLC a call today, we look forward to working with you!

"Justin Gibbons owner of Carpenters Unlimited LLC brought an illegal employee to work on our project alone (claims no employees with WA L&I). When mistakes were made, Justin GIbbons blamed the employee, attempted to fix the errors, but did not succeed in fixing the errors. Based on the work Justin Gibbons and his company Carpenters Unlimited LLC provided, we would not recommend Justin Gibbons and his company Carpenters Unlimited LLC to family or friends or anyone else. The work Justin Gibbons and his company Carpenters Unlimited LLC provided was subpar, completed late, required many follow ups from us to get fixed, and resulted in damages. We are pursing a Small Claims case against Justin Gibbons. See photos for evidence."

Kate M on January 2026


Johnson and Sons Construction

4.97(
94
)
Approved Pro

Johnson and Sons Construction

4.97(
94
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
18 years of experience

We are a family owned & locally operated general construction / remodel company with over 60 combined years in the industry. Although we are general contractors and can do everything, we specialize in kitchen and bathroom remodeling. We have found that through proper communication and great listening our customers are more at ease and comfortable from beginning to end. It is our pleasure to provide top service in design assistance, material decisions, planning, demo and project completion. We go out of our way to uniquely tailor our service to each of our customers needs, wants and desires. We realize our customers invite us into their homes to provide the best service possible and we don't stop until we have done our best to help our customers turn their dreams into a reality. Thank you kindly for taking the time to look into Johnson and Sons Construction, LLC. We look forward to the opportunity to serve!

"Vic and his team were highly professional, fair and communicative. They kept to the schedule, did highly quality work and were good problem solvers with a few issues that came up with project. We would use them again."

Kelsey C on February 2026

We are a family owned & locally operated general construction / remodel company with over 60 combined years in the industry. Although we are general contractors and can do everything, we specialize in kitchen and bathroom remodeling. We have found that through proper communication and great listening our customers are more at ease and comfortable from beginning to end. It is our pleasure to provide top service in design assistance, material decisions, planning, demo and project completion. We go out of our way to uniquely tailor our service to each of our customers needs, wants and desires. We realize our customers invite us into their homes to provide the best service possible and we don't stop until we have done our best to help our customers turn their dreams into a reality. Thank you kindly for taking the time to look into Johnson and Sons Construction, LLC. We look forward to the opportunity to serve!

"Vic and his team were highly professional, fair and communicative. They kept to the schedule, did highly quality work and were good problem solvers with a few issues that came up with project. We would use them again."

Kelsey C on February 2026

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