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Business Details
27 Years
experience
Custom Home Builders in Austin, TX
Mangum Builders has been a trusted name in custom home construction and remodeling in Austin, Texas, for nearly three decades. Our commitment to integrity, excellence, and personalized service ensures every client receives a home that reflects their unique vision and lifestyle. With expertise in diverse architectural stylesfrom traditional ranches to modern green homeswe combine premium craftsmanship with innovative building techniques. Our process emphasizes transparency, open communication, and collaboration, allowing clients to stay informed and engaged at every stage.

As a leader in sustainable building, we integrate eco-friendly solutions like rainwater collection and geothermal systems to create energy-efficient homes. Our teams 70+ years of combined experience, along with partnerships with top architects and designers, ensures every project meets the highest standards of quality and client satisfaction. We pride ourselves on building lasting relationships with clients, vendors, and subcontractors, fostering trust and accountability throughout the construction journey.
Services
Custom Home Construction Kitchen Remodeling Bathroom Remodeling Green Building Solutions Home Additions
Details
  • Year established: 1999
Highlights and features
  • We offer 30+ years of experience in custom home construction and remodeling.
  • Our team specializes in green building solutions like geothermal systems and rainwater collection.
  • We provide personalized service with weekly one-on-one client meetings.
  • Our transparent process includes open-book accounting and 24/7 project access.
  • We guarantee adherence to timelines and milestones for every project.
Associations and certifications
  • Austin Home Builders Association
  • National Association of the Remodeling Industry
  • Austin Green Builders
Services
Custom Home Construction
Mangum Builders specializes in creating bespoke homes tailored to client preferences, from traditional ranches to modern green homes. Our process ensures quality craftsmanship, energy efficiency, and seamless integration of client visions. We handle every detail, from design collaboration to final construction, ensuring a stress-free experience.
Kitchen Remodeling
Our kitchen remodeling services focus on enhancing functionality and aesthetics while respecting client budgets. We work closely with clients to select materials, layouts, and finishes that align with their lifestyle needs. Our team ensures minimal disruption and timely completion of every project.
Green Building Solutions
We integrate eco-friendly technologies like geothermal heating, solar panels, and rainwater collection systems into homes. These solutions reduce environmental impact while lowering long-term energy costs. Our expertise ensures seamless implementation without compromising design or comfort.
Home Additions
Expand your living space with custom home additions designed to complement existing architecture. We handle structural, electrical, and design elements to create cohesive, functional extensions. Our process prioritizes client input and project transparency.
Bathroom Remodeling
Transform outdated bathrooms into modern, efficient spaces tailored to client needs. We focus on maximizing storage, improving layouts, and selecting durable materials. Our team ensures timely execution with minimal inconvenience to homeowners.
People
Greg Mangum
Founder
Greg Mangum began building homes in the San Marcos area in the 1990s and has since become a respected leader in Austins custom home industry. His commitment to client relationships and sustainable practices drives Mangum Builders success.
Questions
What types of homes do you build?
We specialize in custom homes across diverse styles, including ranch, farmhouse, Spanish hacienda, modern, and green homes.
Do you offer remodeling services?
Yes, we provide kitchen, bathroom, and whole-home remodeling services tailored to client needs and budgets.
Are you experienced in sustainable building?
With over 30 years of experience, we integrate eco-friendly solutions like solar panels, geothermal systems, and rainwater collection.
What areas do you serve?
We primarily serve Austin, Texas, including West Austin, Hill Country, and lakeside communities like Lake Travis.
Can you help with financing options?
Yes, we guide clients through financing and land development options to support their home-building goals.
How do you ensure project timelines?
We commit to clear milestones, weekly check-ins, and transparent communication to meet deadlines consistently.
Reviews (5)
Linda Mallardi
Nov 28, 2021 Report
We are local homeowners that had water damage to a room and bathroom. Prior to selecting Greg, we obtained multiple proposals from contractors we interviewed. We know quality when we see it, given our combined years of legal, contracting and project management careers. You will simply not find a better construction partner than Greg Mangum. The project was on time and under budget. The project manager and sub-contractors were all professional, well skilled and great to work with. They respected our space. Greg and team addressed and corrected any issues that came up immediately. We highly recommend Greg.
Ivan Moses
May 09, 2021 Report
I have worked with Mangum Builders on several projects over the years, and I am consistently impressed with the finished project. As someone who deals with MANY builders, it is always a pleasure to work with Greg and his crew. They have clean, orderly job sites. Their scheduling is well regimented, and they make working with them easy. We were tasked with making some custom doors for a project in Rosedale which I visited yesterday for the first time after the job was done. It was very rewarding to see our product integrated so seamlessly into the overall build. The fit and finish of every aspect was really spot on. I really can't recommend Mangum Builders enough.
Debbie Levi
Feb 09, 2021 Report
We are new to Austin, having moved here to be closer to family! Our Architect recommended several local builders to build our new home. After interviewing 3 different builders, looking thru their reviews and portfolios, we decided to go with Greg Mangum of Mangum Builders! Greg was a pleasure to work with and full of knowledge! He helped us on more than one occasion with suggestions for cost saving solutions for our build without compromising "The Look" we were going for! Greg was always very easy to get in touch with whenever we had questions or concerns, as we were living in another city during most of the build process, even sending us photos of the ongoing build status! Greg even came out to our home and personally helped me design my master closet.

Definitely extra points for that! We would recommend Mangum builders to anyone who is looking for a custom builder or a home remodel! Our Gorgeous Contemporary Hip Country home is the Envy of the neighborhood! Debbie Levi
Burleson De Lago
Nov 02, 2020 Report
Critical: Professionalism Greg Mangum let rain water get in the house and then blamed us, the floor contractor, for finish bonding issues. I offered to meet him in the middle for redoing the floors, we refinish at no charge and he moves furniture and touches up the quarter round. Wasn't good enough for him so he left me a terrible review. Shady guy. Service: Install flooring
Nancy Beesley
Nov 02, 2020 Report
The Mangum team built our custom home in 2011 in West Lake Hills. We had heard that building a home would be stressful and challenging but we found the process both easy and efficient. That is largely because of Greg and his amazing team. He helped us navigate the challenges of permitting, communicated clearly and honestly throughout. He also has an amazing aesthetic which while not his core responsibility added incredible input during the finish out and design phase. We finished the 4400 square foot house in 10 months and we were under budget. I can't recommend Mangum Builders enough!