We completely remodeled our master bath and closet, and retiled a guest bath with MAC. They, by far, gave us the best design for our space we could find! They managed to make the bathroom more functional AND give us a bigger closet within the existing square footage. We started with a different designer that ended up leaving the company for a different job before we demo-ed, but Allison came in and took the reins. She was incredible! Can’t give her enough praise! She was extremely organized and efficient, conscious of our budget, and just had a great eye for design and style. She was always on top of everything and was just a pleasure to work with. She helped me make decisions when I was stuck and her suggests really made the space pop and look amazing. We are very happy with the new space! If you chose MAC, ask for Allison!! The reason for 4/5 stars was due to the fact the project took nearly 2x as long as we expected bc there were a lot of delays and lulls.

We are about halfway through our major construction project of two additions at the same time. The MAC team has been guiding us through the process all along, starting at the initial meeting with Derek Leiter when we explained the vision for our family home. The design really wowed us. We felt like they understood what we wanted and incorporated our must-haves in the planning. Justin O'Connell worked with our budget, and answered our questions regarding the cost breakdown. Allison Ugarte designed a beautiful kitchen and two bathrooms, and I appreciated her help shopping in person for the lighting, plumbing and stone/tile. Thus far during construction, Dave Stone and Angelique Dupree have been responsive to our concerns and Elizabeth Litke has been maintaining an organized timeline to keep everyone on schedule. Her weekly project update emails are helpful to know where we are and what's ahead next. We are very excited to see the completed project! Highly recommend the MAC team!

When we decided to remodel our kitchen this year (2024), we interviewed seven design-build firms and asked three to come and visit our kitchen. We selected MAC Design-Build based upon their creative design that allowed us to look at all of the options in the new kitchen. Caitlin Gilhuys provided a design that turned a kitchen remodel into a work of art. Her mix of colors and textures were superb. But a kitchen remodel is not simply a design. MAC’s project management and quality workmanship took the entire project to a new level. Derek Leiter and David Stone lead an exceptional design-build team. I strongly recommend MAC Design-Build and particularly recommend Caitlin as a designer.

After a long and difficult research with multiple design and build companies in the DMV area, we decided to trust MAC Design and Build with our home’s 3-level custom addition and remodel project. MAC’s team has been phenomenal from the moment we contacted them, from scheduling the initial visit, to explaining the process of such complex project. They definitely make it sound easy and fun. But what sealed the deal for us, was their Senior estimator Mr. Justin O’Connell. Justin played a pivotal role in our decision to pick MAC for this project. We are truly impressed with Justin’s expertise and dedication throughout our project so far. His professionalism, punctuality, and meticulous attention to detail have been invaluable during the feasibility study of our project. Justin not only met but exceeded our expectations by capturing all our requirements accurately. His guidance and support have made this process smooth and stress-free. We are grateful for his outstanding service and we look forward to the next phase of our partnership with Justin and the rest of MAC’s phenomenal Team

Just signed a contract with them! They have been a pleasure to work with through the design phase and hashing out the specifics to the contract. I worked with both Derek and Justin and both were very responsive and helpful as we a made several changes to a major decision. We look forward to the construction getting underway!

Highly recommend Mac design+build. Took the time to do an awesome job replacing a door and window. Will most definitely use their services again in the future.

I want to give a shout out to our Senior Estimator, Justin O'Connell. He helped us get through design of our master and guest baths, keeping in mind all of our goals. And more importantly, our budget. Justin has also stepped in and helped with the construction portion and that has been a significant help in our process. While we're a little more than half way through construction, we wouldn't be where we are without him. I highly recommend using Justin if MAC is your choice!

We had our basement finished with MAC in 2022. The project was beautiful but the experience we had was really made amazing by Justin. Justin was the first person we met at MAC and when he came out to our house I knew we had the right people for the job. Justin patiently listened to our ambitious plans for the bar in the basement and was diplomatic in managing our expectations. Would work with him and the MAC team again in a heartbeat.

This review is based solely on the feasibility study as I have yet to work with this company on a project. I requested a formal estimate from MAC for my kitchen renovation and bump out. I was scheduled promptly (less than 2 weeks from request) and the team that came to the house was very professional. They asked a lot of detailed questions and were very thorough which makes me feel comfortable the resultant plans and estimate will reflect what we are looking for. I especially enjoyed speaking with the designer Allison. She was very easy to talk to and seemed to pick up on our vision for the space very quickly.

My wife and I were considering building a basement, and met with a number of different companies. Justin O'Connel, MAC's architect, met us as part of the initial conversations and immediately put us at ease with his knowledge of the process and insightful questions that helped us think through the project. Justin and the whole MAC team have been fantastic and we are very happy we went with them for our project.

I have enjoyed working with Derek on numerous occasions over the past few years. I would definitely consider referring folks to Mac Design in the future for anything from custom home builds, additions, kitchens, basements you name it.

The MAC crew did a great job designing my custom golf simulator. I especially appreciate Justin O’Connell’s responsiveness to this complex project .

I am very pleased with the service provided! Not only did they take the time to ensure that my specific requests were met, but they used quality materials and the overall project came out under budget. I cannot recommend enough!

I am very pleased with the service provided! Not only did they take the time to ensure that my specific requests were met, but they used quality materials and the overall project came out under budget. I cannot recommend enough!

Derek Leiter (Owner) and Justin (Project Manager) are outstanding individuals to work with. When I decided I wanted to finish my basement it was important to me to work with professionals... from consultation, guidance and setting expectations during the process, and execution. The end results are amazing. Attention was paid to every detail. I couldn't be more satisfied with the results and the service. Thank you, Derek and Juston! I highly recommend MAC Design + Build!

Deciding to gut your existing kitchen is a big decision, but in today’s real estate market, especially here in Ashburn, it’s worth the time and expense to update the most important room in the house. Our townhouse in Belmont Country Club was built in 2001 and it was time for an update. We considered cabinet refacing; painting the existing cabinets, replacing hardware and adding a new counter. This process takes a lot less time and is much less expensive. We spent months considering our options. Once we decided to commit to a complete remodel, we needed to find a contractor. We interviewed five contractors, sharing our ideas for the kitchen and considering the updates each company rep would suggest. Candidly, this process took months. We received estimates and spent hours looking through websites to finalize the look we wanted to achieve. Justin O’Connell from MAC Design & Build made the decision easy. Together we explored several design concepts and he was very patient as my husband and I considered our options. Ultimately, we entered into this project with a clear vision of how we wanted the kitchen to look. MAC worked with us to incorporate our ideas into the final design plans. Everyone at MAC from the design consultants, lighting experts and cabinet installer to the flooring, tile and counter subs were friendly, ontime and hard working. Even once the kitchen was complete and the final pieces of hardware were installed, MAC’s customer service team was extremely responsive to making sure everything was perfect. Our family looks forward to making many lasting memories in our beautiful new kitchen. A big thanks to Justin and Dave at MAC Design and Build for a truly amazing experience from start to finish.

Justin was prompt, knowledgeable and extremely helpful. I would recommend him and this company to anyone with larger home projects!

Wonderful people. I love my windows!

Justin and Derek were awesome! We remodeled our kitchen and 3 bathrooms. From the initial design to the end of construction MAC was professional and provided great customer service.
WE LOVE OUR NEW KITCHEN AND BATHROOMS! Thank you MAC Design and Build!

Worked with Justin at MAC for his assistance with flooring install. He was amazingly helpful in finding the right flooring I asked for and at a great price! He also helped coordinate not only the demolition of my old flooring but the install of my new flooring, all within my budget and in a timely manner! I am so grateful for his helpfulness, attention to detail, patience in working with me and for all the wonderful work he helped to create. My floors look outstanding! Thank you Justin! I’ll be sure to all him with my next project! 🙂

We worked with several of the MAC staff on a custom home design and land consulting. They are a top notch team from the first email. Always working like it is their own home and providing a great service. They are ready with lots of ideas to make your dream become reality.

Working with Justin is an absolute Delight. He is very professional and thorough. Highly recommend. Love this place and the people!

While we didn't end up moving forward on our project with MAC, they were great to work with while we were in the initial planning phase. Justin was so patient with my endless questions and he was extremely helpful while we selected our flooring material. He was honest and straightforward with what material we would be the most happy with and he was willing to meet us several times to help us make decisions and select material. Big thanks to Justin and MAC for their support!

Derek and the MAC team are incredible. We are in the beginning stages of the project and have had a terrific experience! Derek is creative, dependable and has moved mountains to give us the home of our dreams within our budget.

I am the Outside Sales Rep for Nova Stone Center - Ashburn. I have had the pleasure of working with MAC Design+Build. They are amazing at what they do. They are incredibly creative and very helpful through the entire process of the project. Derek is great to work with and very responsive (which is important to get things done). I highly recommend you pick MAC Design+Build for your future projects!

When seeking a design firm to remodel our large outdated kitchen, we searched for a company that would create a unique and dramatic outcome. The design was complicated and required sophisticated and experienced designers, engineers and procurement crews. MAC design listened to all our wish list items, incorporated almost all of them, but offered their own dramatic design inputs and ways to achieve our goals in more cost effective ways - they took our dreams and brought them to life. Many companies we spoke with said they could do anything we wanted. But from the beginning, MAC took the time and effort to develop the true feel for what we wanted, and then meshed that with their own design skills to create a contemporary AND practical kitchen - not simply executing whatever we thought might work or be interesting. We certainly were prepared to pay what it takes to achieve our goals, but MAC inserted reality into the process, often proposing solutions that saved us considerable sums in various areas. All members of the MAC team were dedicated to their tasks, often going the extra mile to get an aspect just right vs. adopting an easy, off the shelf solution. With their experience and contacts, they were even able to have custom items fabricated that were more cost effective than off the shelf. It was touches like these that took the project from nice to over the top and grand!

It was fantastic. They were awesome and very highly recommended. They were accurate, fast, efficient and it was cost-effective.

MAC Design and Build has excellent resources with good design sense. They are not just focused on getting the work done, but rather they try to make everything they touch look beautiful. We received many compliments after our project with MAC. We worked with Justin O Connell in 2018/2019; we are very pleased with his work. The most commendable aspect is Justin's ability to identify issues at the root, he was able to find out many issues that our adjuster missed. This ability comes with experience. Justin and his team advised us with various home re-design options that fit our budget. Our Kitchen redesign was a great investment that we made and the result was fantastic. Justin and Cathy played a key role in keeping us honest about the project costs, material costs, whilst providing us the best possible design options. Above all, Justin and his team can adapt very quickly based on individual tastes/budgets and deliver quality work. Thank you for all the wonderful work.

We were really happy with the design assistance they provided. There are so many choices to make, and their expertise really helped us narrow down our selections. They installed a Tray Ceiling which our neighbors always comment on in a favorable way. They worked clean and provided regular updates on project progress.

The kitchen is a total Show Stopper. Our neighbors comment on the unique design features and quality of the finishes. One notable feature is a coffered ceiling that really makes the kitchen stand out. They worked clean and finished on time and on budget.