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Addition to existing structure builders in Galveston

Professional Construction Services
936 Long Reach Drive
4.44(
18
)
Approved Pro
Professional Construction Services
936 Long Reach Drive
4.44(
18
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
30 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 start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Very professional kept me informed of who was supposed to be coming and when followed up on any questions. All licensed contractors. Highly recommend"

Christina B on December 2019

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

"Very professional kept me informed of who was supposed to be coming and when followed up on any questions. All licensed contractors. Highly recommend"

Christina B on December 2019


Avatar for ISC Construction Services, LLC
ISC Construction Services, LLC
1005 Winfield Lane
4.92(
15
)
Approved Pro
ISC Construction Services, LLC
1005 Winfield Lane
4.92(
15
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
24 years of experience

Locally owned and operated and in business since 2001 with over 17 years in the home building industry, ISC Construction Services, LLC, is the company to call for all of your custom home building, add-on, and flooring needs. Many finance options are available to our customers. Call us today for a free estimate.

"Building during covid and hurricane threats are experiences in themselves. Isaac from ISC Construction was only a phone call away at any time. Building comes with a lot of ins and outs and we always found reasonable back up plans during the problematic times. Mostly due to hurricane building requirements. Make sure you get your pricing locked down and expect the 15-20% extra costs at the end for building as we did. One thing I wished he had would be a building supervisor. The property was far enough to be an issue when certain contractors were there. Maybe he’ll hire me !! A big plus is that he is bilingual and can communicate with the workers. This helped tremendously. The build itself is amazing. We love our house. He helped us find the lot and build! He always says he’s a one-man shop! Ha!"

Laura C on June 2021

Locally owned and operated and in business since 2001 with over 17 years in the home building industry, ISC Construction Services, LLC, is the company to call for all of your custom home building, add-on, and flooring needs. Many finance options are available to our customers. Call us today for a free estimate.

"Building during covid and hurricane threats are experiences in themselves. Isaac from ISC Construction was only a phone call away at any time. Building comes with a lot of ins and outs and we always found reasonable back up plans during the problematic times. Mostly due to hurricane building requirements. Make sure you get your pricing locked down and expect the 15-20% extra costs at the end for building as we did. One thing I wished he had would be a building supervisor. The property was far enough to be an issue when certain contractors were there. Maybe he’ll hire me !! A big plus is that he is bilingual and can communicate with the workers. This helped tremendously. The build itself is amazing. We love our house. He helped us find the lot and build! He always says he’s a one-man shop! Ha!"

Laura C on June 2021


Avatar for A A & F Construction
A A & F Construction
4600 W Guadalupe St B-334
5.00(
5
)
Approved Pro
A A & F Construction
4600 W Guadalupe St B-334
5.00(
5
)
Approved Pro
10 years of experience
Free onsite estimate

We are committed quality work and outstanding results and are strongly involved in local community activities. We look forward to working with you, please call today!

"Thank you for your work on my beautiful patio. It is been the perfect place to relax while my kids are running around outside. Glad my work friend recommended your business!"

Morgan P on June 2025

We are committed quality work and outstanding results and are strongly involved in local community activities. We look forward to working with you, please call today!

"Thank you for your work on my beautiful patio. It is been the perfect place to relax while my kids are running around outside. Glad my work friend recommended your business!"

Morgan P on June 2025


Avatar for Watermark Restoration, Ltd.
Watermark Restoration, Ltd.
11020 Katy Freeway Suite 205
4.86(
11
)
Approved Pro
Watermark Restoration, Ltd.
11020 Katy Freeway Suite 205
4.86(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
11 local quotes requested

Terry Buckner and his company, Watermark Restoration, take a strong stance of priority on customer service and quality in all that they do. His company is A+ rated by the Better Business Bureau. Call Terry today and find out just how good the client contractor experience can be when one is dealing with a true professional.

"Very good job, thank you"

Grace M on October 2024

Terry Buckner and his company, Watermark Restoration, take a strong stance of priority on customer service and quality in all that they do. His company is A+ rated by the Better Business Bureau. Call Terry today and find out just how good the client contractor experience can be when one is dealing with a true professional.

"Very good job, thank you"

Grace M on October 2024


Avatar for The Deck and Patio Company, LLC
The Deck and Patio Company, LLC
17750 Southridge Dr
4.64(
133
)
Approved Pro
The Deck and Patio Company, LLC
17750 Southridge Dr
4.64(
133
)
Approved Pro
Customers say: Quality work
3220 local quotes requested
15 years of experience

15+ employees. Most work is done by us, though we do use some subs (electrical, plumbing, etc). Free estimates and HOA approval processing are included! Top quality for a fair price, call us today! Formerly: Sullivent Services

"Working with Tom Ruddell was great. He was knowledgeable in his craft, timely, and most importantly, honest about balancing our needs versus wants to maximize our modest budget. I would definitely consult him again about future projects. Thanks, Tom!"

Michelle S on January 2025

15+ employees. Most work is done by us, though we do use some subs (electrical, plumbing, etc). Free estimates and HOA approval processing are included! Top quality for a fair price, call us today! Formerly: Sullivent Services

"Working with Tom Ruddell was great. He was knowledgeable in his craft, timely, and most importantly, honest about balancing our needs versus wants to maximize our modest budget. I would definitely consult him again about future projects. Thanks, Tom!"

Michelle S on January 2025


Avatar for Genie Bath Systems
Genie Bath Systems
5680 Randolph Blvd
4.64(
83
)
Approved Pro
Genie Bath Systems
5680 Randolph Blvd
4.64(
83
)
Approved Pro
Customers say: Quality work
4514 local quotes requested
12 years of experience

Genie Bath Systems provides homeowners with custom bath remodeling solutions, to include a full-line accessibility needs. All of our products are custom made in the USA. Factory Certified Installation.Lifetime Warranty.100% Financing . PLEASE NOTE: WE DON"T PERFORM KITCHEN REMODELS

"Last October, my sister, an elderly veteran living alone, contracted Genie Bath Systems to remodel her master and guest baths. She was diagnosed cancer and passed before the remodel was complete. Which, to be fair as we were not able to work with Genie while attending to my sister. The contract was expensive. Very expensive. The cost of the remodel is close to 1/4th the value of her home. I noticed there were issues with the remodel that showed a surprising lack of attention to detail. Genie sent people to address the issues twice. Yet issues remain. My calls to my contact at Genie are now being ignored. Also, the only document I have for the remodel is the contract my sister signed. It is not detailed. I have and continue to ask for a breakdown of the cost. An estimate or work order. This request is also being ignored. I am disappointed and have to wonder why Genie will not provide this information. I have several other questions for Genie that I will not go into here. But based on my experience, I cannot recommend Genie. In fact I would warn anyone considering Genie to be very careful about the cost of the contract."

Greg B on May 2025

Genie Bath Systems provides homeowners with custom bath remodeling solutions, to include a full-line accessibility needs. All of our products are custom made in the USA. Factory Certified Installation.Lifetime Warranty.100% Financing . PLEASE NOTE: WE DON"T PERFORM KITCHEN REMODELS

"Last October, my sister, an elderly veteran living alone, contracted Genie Bath Systems to remodel her master and guest baths. She was diagnosed cancer and passed before the remodel was complete. Which, to be fair as we were not able to work with Genie while attending to my sister. The contract was expensive. Very expensive. The cost of the remodel is close to 1/4th the value of her home. I noticed there were issues with the remodel that showed a surprising lack of attention to detail. Genie sent people to address the issues twice. Yet issues remain. My calls to my contact at Genie are now being ignored. Also, the only document I have for the remodel is the contract my sister signed. It is not detailed. I have and continue to ask for a breakdown of the cost. An estimate or work order. This request is also being ignored. I am disappointed and have to wonder why Genie will not provide this information. I have several other questions for Genie that I will not go into here. But based on my experience, I cannot recommend Genie. In fact I would warn anyone considering Genie to be very careful about the cost of the contract."

Greg B on May 2025


Avatar for Remodel Specialists
Remodel Specialists
2530 Spring Cypress Rd
4.80(
181
)
Approved Pro
Remodel Specialists
2530 Spring Cypress Rd
4.80(
181
)
Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
608 local quotes requested

We are a kitchens and bathrooms company. We specialize in custom showers, custom cabinets and counter tops. We staff high end professionals and use sub contractors only when necessary. We also give a very detailed estimate, action oriented so you only pay for the work preformed and gives control to the homeowner.

"These guys were fantastic. They are one of the few companies out there that that actually do what they say will do. They send you daily emails around 830 am describing the activities for the day and who will be inside your house. Their communication is great - they always answer emails and texts in a very timely matter. The master bathroom we had remodeled looks great and was done in the time period they indicated at the beginning of the process. Sure, you could probably find someone cheaper and does inferior work, however we wanted it done right the first time. Nic and Sarah and the entire team exceeded our expectations!"

Brad A on October 2024

We are a kitchens and bathrooms company. We specialize in custom showers, custom cabinets and counter tops. We staff high end professionals and use sub contractors only when necessary. We also give a very detailed estimate, action oriented so you only pay for the work preformed and gives control to the homeowner.

"These guys were fantastic. They are one of the few companies out there that that actually do what they say will do. They send you daily emails around 830 am describing the activities for the day and who will be inside your house. Their communication is great - they always answer emails and texts in a very timely matter. The master bathroom we had remodeled looks great and was done in the time period they indicated at the beginning of the process. Sure, you could probably find someone cheaper and does inferior work, however we wanted it done right the first time. Nic and Sarah and the entire team exceeded our expectations!"

Brad A on October 2024


Avatar for Seek Design & Renovation
Seek Design & Renovation
3120 Southwest Fwy
4.66(
155
)
Approved Pro
Seek Design & Renovation
3120 Southwest Fwy
4.66(
155
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
610 local quotes requested

Seek Design & Renovation is an award-winning remodeling company known for delivering beautifully crafted, design-driven home transformations. With over 45 years of combined experience in construction, architecture, and interiors, our dedicated team brings both creativity and precision to every project. Our in-house team includes a seasoned custom home builder and a professional designer, allowing us to manage every detail—from vision and planning to construction and finish—with seamless coordination and exceptional care. Whether updating a kitchen, reimagining a bathroom, or undertaking a full-home renovation, we approach each project with a commitment to excellence and a deep respect for your home. We offer complimentary, itemized estimates, are fully insured for your protection, and provide a one-year warranty on all work. Our reputation is built on craftsmanship, transparency, and trust—reflected in our five-star rating with the Better Business Bureau, multiple Angi Super Service Awards, and recognition as a Best of Houzz recipient. At Seek Design & Renovation, we don’t just remodel spaces—we thoughtfully reimagine them to reflect the way you want to live.

"We had a water heater leak that flooded my daughter's bedroom. Seek Design was prompt, professional, and did an absolutely wonderful job. The work was top-notch and done quite quickly. I would absolutely hire again. - Vincent S. (Spring TX)"

Vincent E S on January 2025

Seek Design & Renovation is an award-winning remodeling company known for delivering beautifully crafted, design-driven home transformations. With over 45 years of combined experience in construction, architecture, and interiors, our dedicated team brings both creativity and precision to every project. Our in-house team includes a seasoned custom home builder and a professional designer, allowing us to manage every detail—from vision and planning to construction and finish—with seamless coordination and exceptional care. Whether updating a kitchen, reimagining a bathroom, or undertaking a full-home renovation, we approach each project with a commitment to excellence and a deep respect for your home. We offer complimentary, itemized estimates, are fully insured for your protection, and provide a one-year warranty on all work. Our reputation is built on craftsmanship, transparency, and trust—reflected in our five-star rating with the Better Business Bureau, multiple Angi Super Service Awards, and recognition as a Best of Houzz recipient. At Seek Design & Renovation, we don’t just remodel spaces—we thoughtfully reimagine them to reflect the way you want to live.

"We had a water heater leak that flooded my daughter's bedroom. Seek Design was prompt, professional, and did an absolutely wonderful job. The work was top-notch and done quite quickly. I would absolutely hire again. - Vincent S. (Spring TX)"

Vincent E S on January 2025


Avatar for Danny Did It
Danny Did It
3110 Whitesail Dr
4.92(
61
)
Approved Pro
Danny Did It
3110 Whitesail Dr
4.92(
61
)
Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
447 local quotes requested

It is best to call or text 281 508 3209 I've been serving League City, Galveston County and Clear Lake area for 30 plus years. I specialize in kitchen and bathroom remodeling, however I'm now offering a superior handyman service with a $300 minimum for the first 2 hours after 2 hours the price is $75 per hour includes my 40 years of experience, my tools and my truck. I will pick up your material and deliver to your job if you're not able to do so. I am very passionate about the work that I do. I'm pretty much a one-man operation, however I do have help if required. if you're looking for quality and a good experience with a contractor please call the number above I will be happy to give an estimate. thank you for checking out Danny DID IT.....

"Ms. Danny was very polite came in and respected. The fact that I worked nights he got the job done very quickly and quietly I thank you so much Danny and I will be going forward calling you every time I have a new project thank you so much for your excellent work."

Teresa H on February 2025

It is best to call or text 281 508 3209 I've been serving League City, Galveston County and Clear Lake area for 30 plus years. I specialize in kitchen and bathroom remodeling, however I'm now offering a superior handyman service with a $300 minimum for the first 2 hours after 2 hours the price is $75 per hour includes my 40 years of experience, my tools and my truck. I will pick up your material and deliver to your job if you're not able to do so. I am very passionate about the work that I do. I'm pretty much a one-man operation, however I do have help if required. if you're looking for quality and a good experience with a contractor please call the number above I will be happy to give an estimate. thank you for checking out Danny DID IT.....

"Ms. Danny was very polite came in and respected. The fact that I worked nights he got the job done very quickly and quietly I thank you so much Danny and I will be going forward calling you every time I have a new project thank you so much for your excellent work."

Teresa H on February 2025


Avatar for Expo Home Improvement
Expo Home Improvement
New on HomeAdvisorNew on Angi
Approved Pro
Expo Home Improvement
New on AngiNew on HomeAdvisor
Approved Pro
825 local quotes requested
19 years of experience

Since 2006, we've specialized in Bath and Shower Remodels, Window and Door Replacements, and Insulation for your home. As a local company, it is our pleasure to offer only the best products and solutions, because we know the heart of every Texan home, is a family. A new home improvement project should be a great experience, so choose a trusted contractor you know you can count on! Over 20,000 Texan Families have trusted us with their home renovations. Give us a call today! M-39963

Since 2006, we've specialized in Bath and Shower Remodels, Window and Door Replacements, and Insulation for your home. As a local company, it is our pleasure to offer only the best products and solutions, because we know the heart of every Texan home, is a family. A new home improvement project should be a great experience, so choose a trusted contractor you know you can count on! Over 20,000 Texan Families have trusted us with their home renovations. Give us a call today! M-39963

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FAQs for addition to existing structure building service projects in Galveston, TX

Yes, you can add a bathroom on a concrete slab, but the crew will need to saw-cut the slab, trench in new supply and drain lines, and then patch the concrete without weakening the foundation. Working with an experienced plumber and concrete pro keeps the structure intact and helps the new bathroom pass inspections.

schedule covers planning, permits, framing, rough-ins, finishes, and punch-list items. 

Larger spaces or extensive plumbing and electrical upgrades can stretch the timeline, while a simple powder-room conversion may wrap up faster. Hiring licensed pros helps keep the schedule on track and the work up to code.

The best location depends on how your family uses the space. An upstairs bath keeps nighttime trips close to the bedrooms, while a first-floor powder room is handy for guests and everyday traffic. 

Think about where plumbing lines already run, how much square footage you can spare, and what layout changes fit your budget. A pro can map out the smartest spot and handle any code hurdles.

With the right planning, you can carve out a bathroom in almost any part of the house. A successful addition requires sufficient space, proper ventilation, and access to plumbing and electrical systems. Structural modifications and adherence to building codes are essential. 

This process demands careful planning and the coordination of specialized professionals who ensure that the new space meets all code requirements and functional needs.

Under specific conditions, adding an extra bedroom can boost home value more than adding a bathroom. Home value is driven by overall configuration, market demand, and functional balance. A new bedroom influences the property’s appeal in different ways, while an additional bathroom enhances living convenience. Evaluating the current layout and market trends determines the optimal choice for maximum value.

The Galveston, TX 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.
master bedroom with fireplace
Jun 26, 2025
Jun 26, 2025
Budget for bedroom remodel costs based on factors such as bedroom size, remodel type, features, materials, labor, and more.
CONTRACTOR LOOKING OVER HOME DEVELOPMENT
Apr 19, 2025
Apr 19, 2025
Budget for your general contractor’s hourly rate by considering factors such as project scope, fee structure, pricing model, and more.
Outdoor view of the modern house
Jun 16, 2025
Jun 16, 2025
Explore how square footage, room type, home additions, and other common factors affect house renovation costs with our detailed cost guide.
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
Apr 8, 2025
Looking to enhance the warmth and utility of your kitchen? Explore how much a butcher block countertop costs and start your budget here.
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.
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