Cosgrove and Sons Contact Us

About Us

With over 100 years’ experience, our team leaders have the experience you need to make sure the job is done right.  Not only do we have the skills and experience you need, we have the spirit of service.  Our founder, Stephen Cosgrove hails from England, from a long line of master craftsman. He and his team are deeply committed to the same integrity and  quality standards of an old world craftsman.
We do everything possible to delight our clients with a quality job that runs smoothly and that ultimately creates a sanctuary  for friends and family to gather.  We can transform your home dreams into a reality: whether it’s turning extra rooms into cozy personal spaces… adding or remodeling a bathroom or kitchen… remodeling an entire home.

  • Licensed, Bonded, Insured in MD and DC
  • EPA certified and registered Lead Safe Renovator.
  • Member Better Business Bureau
  • Member Building Trades Association

Cosgrove and Sons can help you with the following types of projects:

  • Bathrooms, remodel or adding a new bathroom
  • Kitchen
  • Finish Basement
  • Create Master Suites
  • Full Interior Conversions & Remodeling
  • Home Offices, Studios,
  • Attic Conversions
  • Garage Conversions & Remodeling

Cosgrove and Sons’ team of experts can help you with:

  • •  Pre-project feasibility costing and studies
    •  Orientation for the homeowner  to the remodeling process
    •  Architectural design ·
    •  Engineering ·
    •  Site preparation and planning
    •  Space and work flow planning
    •  All necessary permitting and inspections
    •  Protection of your existing home and contents
    •  Coordination with HOA and neighbors  ·
    •  Turnkey construction and quality control from start to finish ·
    •  Project management and supervision ·
    •  Post-project follow-up

You can trust that our experienced team of skilled craftsmen, project managers, will all help make sure that your project is conceived, designed, planned and built in the way best  for you and within the agreed budget and time frame
Horror stories abound of contractors without integrity who leave a job half done, take your money and run, do bad work, and leave you miserable.  Avoid those heartaches by choosing a proven, trusted, established member of the community - Cosgrove and Sons.  We can help you find great enjoyment and comfort from your home; that special place where cherished memories are made.


Earn Your  Trust

Being a family owned and operated company, active and involved in our community, we don’t want to simply make a sale.  We are all about you and your family.  We get the most satisfaction from making our client thrilled with a beautiful home, where they can relax, enjoy, entertain and live to the fullest with family and friends.  We have three children of our own, plus 2 dogs, and we know the importance of working with people you trust and can rely on.   We understand that you have invited us into your home as a guest to help you make wise choices. If you want to make an informed, intelligent decision, you need to have someone who truly cares about you and your family and will provide honest and unbiased information.
We will give you an estimate that is complete and thorough, not an estimate that sounds good only because it does not include everything to do the job. That’s not what you’re looking for. Being dishonest or playing “sales games” does not help you.
We have a strong moral commitment to making sure your project is performed correctly and to the best of our ability. We don’t cut corners or take chances, safety and integrity are key ingredients to  our work.

All of us here at Cosgrove and Sons understand that we are as good as  our last project. As a local family operated business, we must do a good job or we don’t have a job!

Request an Estimate

Stephen, we want to thank you for your wonderful work on the major remodeling job that you just finished for us. Since this was our first time doing such a big project- multiple rooms,- we were nervous, as we had heard many horror stories. However, you made us feel safe and taken care of from the start. There were a lot of things that impressed us, like how well you supervised your team. You or your supervisor always made sure that things were done right. Your guys cleaned up every day. And the easy approval from Home Owners Association was such a relief, your help was invaluable. Our friends and family that have seen the work love it, and we were glad that one of them has already contracted with you for a project. Thanks again for everything. We're saving for the next project you guys do for us!

Chevy Chase, MD
S.J Smith