Dream. Build. Love.

About Us

What Makes Us Different

Screen shot 2014-01-26 at 1.57.41 PMModified Construction is a full service custom builder capable of a wide range of construction services. We specialize in residential home building, remodeling, renovations, and boutique development projects. Modified Construction has gained a reputation of delivering high quality work while providing the best value for our clients, due to our attention to detail and exceptional customer service.

The Modified Construction Difference

Modified Construction prides itself on our amount of repeat clients and the recommendations that those clients give to their neighbors, coworkers, friends, and family. Guiding all of our practices is our goal to create lifetime clients, not just to complete one job.  To ensure that our clients receive consistently great results and overall experience, our philosophy utilizes the same guiding principles on every project:



As a smaller firm, you get the personal attention of the owner of the company, Andrew Keszler. Along with a dedicated project manager, Andrew would be your point of contact throughout your entire building or remodeling process. In addition to personal attention, Modified Construction simply does what we say we will do. We are punctual, we create realistic project timelines, and when we start your project, it is our focus until it is complete to your satisfaction.


Every project undertaken by Modified Construction is built and supervised by the same team of craftsmen. These craftsmen are experts of their trade, and many of them have over 20 years of experience. By using the same team, we can assure the quality of craftsmanship will be to the exact high standards that Modified Construction has built its name around.

Attention to Detail

Our motto, which we pass along to each of our clients is, “If I wouldn’t accept it in my own house, I will not accept it in yours”. This simple belief keeps everyone on the team working to the same goal of producing the best possible result and experience for our clients. We aim to create a perfect product upon the completion of every project, but if for some reason any detail does not meet your standards, we make sure to mend it quickly and to your satisfaction.


We fully understand how disruptive a remodeling project can be to an owner and/or their family. We try and keep the impact of our presence as low as we possibly can. Modified Construction aims to work within comfortable times for your household, and we will always communicate our schedule and changes that may develop along the way. Every remodeling project is going to cause some disturbance, but we do our best to cover and protect all areas that workers will be using, separate work areas with plastic to try to contain dust, and to be as respectful to your needs as possible. At the end of the project, we always provide a professional cleaning crew, free of charge, to do a final cleanup for the house.


Communication between a client and contractor is key to any successful project. We are available to discuss any aspect of your project when you need to. We go out of our way to respond to questions whether it’s by phone (call or text) or email as quickly as we can. We have even integrated a cloud based project management software system that keeps you up to date on all facets of your project from budgeting, to scheduling, to progress pictures.

We thank you for considering Modified Construction for your remodeling project. We hope that this gave you insight as to how we operate and what to expect from working with us. We hope to gain in you another satisfied client!

The Modified Construction Team


“Andrew and his crew are terrific. I’ve worked with Modified Construction on several projects since 2010 from a full attic remodel to replacing kitchen countertops and have been pleased each time with the quality of work, price and customer service. ”

– Elisabeth H, Chevy Chase, MD


“Amazing experience with Modified Construction! They worked fast, were clean, and everything looks awesome! Andrew had great ideas that I hadn’t thought of, and was very patient with us! Would highly recommend him! ”

– Michal T.  Rockville, MD

Project Portfolio

Check out our
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“My overall experience with Modified Construction is exceptionally good. Most of the time you find a company is two of these three things: responsive, affordable or high quality. Typically you cannot get all three in one contractor. In this case of working with Modified Construction, and I am not easy with giving praise, you and your company combined and delivered on all three, responsiveness, affordability and high quality. You called or texted promptly for my questions. You rendered detailed and reasonably priced bills, you got the work done in a timely way with an attractive product. ”

– Richard A. Bethesda, MD

We Buy Houses

Modified Construction buys houses in any condition, as is, quickly, and for cash.

Modified Construction buys houses in any condition! If you are considering selling your home, give us a call!

Know of someone who needs to sell their house? Send us a lead! Modified Construction offers cash referral bonuses if we close a lead you provide. It’s as easy as that!  What an easy way to earn some extra money just by keeping your ears and eyes open.

For more details:
Click Here

We thank you for considering
Modified Construction for your remodeling project.


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5143 Dudley Lane Bethesda, MD 20814