"Professional Building and Renovations works closely with Architect, Steve O'Neill, on all of our projects requiring building permits. Steve's many years of design knowledge and experience are an invaluable asset on our projects. We also work with Steve when completing structural repairs to homes that have been damaged by termites, see Journal of Light Construction April 2023 edition and article Repairing a Termite Damed House."

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!\n\n

"Excellent Experience – Highly Recommend company. I had a great experience working with this drafting company. The team was professional, responsive, and easy to work with. A special shoutout to Collin Kelsch and Rosa Chatwin for their outstanding cooperation and attention to detail throughout the project."

"I placed a notice on Angi that I desperately needed an architect. I was given a list of 5 companies, however Campbell Architects (CA) contacted me first. As a matter of fact, I do not recall any of the other companies reaching out to me. When I tell you that Johnathan Campbell stepped in and did what I needed him to do which was to draw a PLAT of my property, he also went above and beyond what one would expect someone as busy as him to do. He came in and recognized that in addition to needing a PLAT, I was also having a terrible time getting the work on my property completed because a hostile neighbor continuously contacted the DOB with false statements causing me to incur numerous Stop Work Orders. When I asked Mr. Campbell what his experience was with this sort of thing, he told me and then offered his help. What I found was a very thoughtful, quiet, and professional architect who had seen it all. Not only did he understand the situation with the neighbor, he also understood my plight with the DOB and set about methodically, and very carefully stepping in to argue my case for me. He has the experience, he has the knowledge, he has the patience and he is an established and well known architect in this area, and highly respected at the DOB. It took me six months to get a response from the DOB, but once Mr. Campbell stepped in, it only took one day. My point here is that the magnitude of an individual's professionalism, knowledge and capabilities is reflected in the work product and engagement experience you the homeowner will receive. Here, Mr. Campbell made a WORLD of difference in my life as a homeowner trying to do her best against a system of mostly men who know the system, who can be cavalier and do not really care that we the homeowners have become frustrated with DOB. Mr. Campbell is an ANGEL. If you ever need an architect, he is your guy. He is a no nonsense kind of man who really, really cares about people and understands that most homeowners are "no match" for the DOB machine that controls the movement of homeowners here in the DMV. I am so grateful to Angi for creating a platform where I could find Mr. Campbell. I honestly do not know if I could have survived my nightmare ordeal without his knowledge, strength and capabilities. I now consider him to be a friend. I was shocked that he was willing to help me with the crazy man next door, but he took all of that on. He has made a difference in my mental health and ability to complete the work that I started, which the neighbor constantly stopped. I feel that I got more than an architect when I met Mr. Campbell. When people tell me they need an architect I always tell them JOHNATHAN CAMPBELL FROM CAMPBELL ARCHITECTS. This is the best company I have worked with in years. So grateful to have met him."

HELLO! and welcome to Michael J. Cohalan Architect! I am your one stop shop for all things architectural services! I have over 50 years of experience, and customer service is always my top priority. I am also a member of the NCARB The National Council of Architectural Registration Board. So just give me a call today with your details for your free estimate.

Citadel, offers a full range of Architectural, Engineering and Construction services that foster innovative structures that are both functional and aesthetically pleasing. Through our unique innovative process, we help to develop intimate and functional structures. Whether it is design, engineering, or construction , Citadel aims to give its clients the best service available. \n

"Seth Ballard AIA is a remarkable architect. We highly recommend his firm for both residential and commercial architectural design work. Seth is WOW! Michele Roosevelt Edwards"

"Tom Clark is one of the grand old deans of architecture, yet he thinks very, very young. He's seen fads come and go, and is not wedded to a particular style, yet is well versed and perhaps the most flexible architect I've ever encountered. He is extremely responsive, truly listens to his clients, and provides direction and recomendaitons based upon his years of experience. He is practical to the core and understand his clients. We could not be more pleased with our choice of his office. My wife and I are going through with our project when we thought on a number of occasions that we'd just pack it up. Tom's guiding hand made it happen."

"He was very helpful and aware of all that I needed to get my project going. Thank you Peter so much for all your help."

"Green Studio Builders (and specifically its owners, Chris and Nicoleta Papadopoulos) helped me take a financially devastating

situation with my house and turn it into an opportunity to create a home that I love. A little backstory: I bought my home in Hyattsville in 2009. It was a single family detached colonial with a three-story addition on the back-side of the house.  In 2010, I was told by a county inspector that the addition was un-permitted. It wasn?t clear until 2012 just how faulty the construction of the addition was. Long story short, it became clear that the repairs needed to bring the addition up to code were going to cost 150K or more. It took me a year find a way to finance the repairs. Once I had, I hired an engineer and architect to draft rough plans to inform estimates. Enter GSBuilders.

When I met with Chris for the initial walk-through of my home, he was sympathetic, attentive, and optimistic. I felt immediately at ease and could tell that he was an expert who would take great care in fixing the mess I?d inherited. He recommended a complete demolish and rebuild, adding valuable square footage and ensuring that things would be wholly right. He was the only contractor to suggest a complete rebuild. The added value was double the added cost! When his estimate came in as one of the most competitive for a rebuild, I was delighted.

Chris and Nicoleta made their support clear from the start. Chris spent his own time cleaning up the messes in the plans drafted by the architect and engineer I'd previously hired. He and Nicoleta both helped me navigate a personal health crisis in the middle of the project, meeting me on site to provide reassurance and welcoming me to their offices regularly with advice and espresso. Nicoleta spent hours helping me coordinate finishes. She acted as my designer at no extra charge. even making trips to tile stores and walking me through other finished project sites (with owner's permission) for inspiration. Nicoleta has a generous heart, exquisite taste, and great strategies for creating beautiful spaces on a budget.

I also owe a debt of gratitude to William Reyes, the foreman assigned to my project. When Chris and Nicoleta had to tend to a family crisis of their own, William stepped in and held my hand through every step of the project through completion. Every renovation has its hiccups and I always knew I could count on William (Mr. William as I took to calling him because he always called me Miss Pamela) to come up with a great solution that would keep the project on track. In some cases the obstacles became opportunities for improvement! I couldn?t have asked for better.

I could write for pages and pages about the specific ways in which GSBuilders saved my house and my sanity. Thanks to Chris and Nicoleta, my grief over this unexpected financial blow has become delight in my beautiful home.  I am forever grateful and cannot recommend their services highly enough. I can, however, offer individuals venturing into a project with GSBuilders some advice that will make everyone?s life easier.

1. Start your project with GSBuilders from the drafting stage.

My only regret is that I didn?t find and work with GSBuilders and their engineers and architects from the start. They have a well-coordinated team and the quality of the work for the price can?t be beat. Save yourself the headaches and trust them with it ALL!

2. Know the specifics of your budget and start collecting photos of spaces and finishes you love.



Nicoleta can work magic within your preferred style and budget, especially if you have specific price points for finishes and have a clear aesthetic. And even if you don't, Nicoleta will help you figure it out. That is tremendous added value.

3. Keep the GSBuilders team on speed dial and never hesitate to call.

Chris, Nicoleta, and William all made it clear to me from the start that they were willing to help at every turn, but sometimes I didn?t reach out because I didn?t want to be a bother. MISTAKE! It became clear that transparent and regular communication made everyone?s lives easier. The team always got back to me within hours if not minutes and was happy to be in the loop. A connected team is an empowered team.

4. Stop by the office. 



The espresso is hot and strong and you may even come on a birthday and get a cupcake! In any case, you?ll get a warm welcome and all the support you need to navigate your renovation.

Thank you to the whole GSBuilders family for your love and support in this journey. I?m eternally grateful for you all!

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