Annapolis has some of the oldest continuously occupied housing in the country, and working in the historic district is a genuine specialty. Colonial-era construction, narrow lots, party walls, and layers of renovation stretching back further than anywhere else in our service area.
The approach is the same one we use on the oldest Catonsville and Ellicott City properties, applied with even more care. Understand what is there. Route around finished material rather than through it. Be honest about what a modern upgrade actually requires in a building that was not designed for one.
Waterfront and near-water properties add a second layer. Salt air is corrosive to fittings and equipment, high water tables affect anything below grade, and mechanical placement needs thinking about in terms of flood exposure. Those are real design considerations, not afterthoughts.
What we find in Annapolis homes

Historic district construction
Colonial and Federal-era buildings with minimal chase space and centuries of modification. Careful, slow work with flexible materials is what makes modernization possible without damage.
Waterfront corrosion and high water tables
Salt air shortens the life of exposed fittings and equipment. High water tables affect basements, crawl spaces and anything installed below grade. Both need designing for rather than discovering.
Mechanical placement and flood exposure
In low-lying near-water properties, where the water heater and other equipment sit matters. Elevating vulnerable mechanicals is worth considering during any replacement.
Neighborhoods and landmarks we work around
We cover all of Annapolis and the surrounding Anne Arundel County communities, including 21401, 21403. Areas we are in regularly:
- Historic downtown Annapolis
- United States Naval Academy
- City Dock
- Eastport
- West Street
- Spa Creek
What Annapolis customers tell us
Owners of historic Annapolis property want a plumber who will slow down. Forty years of working on old houses teaches you that speed is the enemy in those buildings.
I had an outstanding experience with Collins & Sons LLC. Daniel has done several projects at my home over the last 4 years. He has helped me with small projects (replacing a garbage disposal), large projects (renovating my patio) and random projects. No mat…
Needed a water heater and my upstairs plumbing replaced. After contacting them they were very flexible to my schedule, also explaining in detail costs and procedures. Who doesn't like an honest family owned professional? I would use them again any time and…
Danny is a very professional and friendly person to work with. His work as a plumber and contractor is outstanding. He receives a high rating as he cleans up after he finishes working. I highly recommend this company and Danny to work on any project for you…
Plumbing questions from Annapolis
Can you work on a colonial-era home?
Yes. Old buildings are a large part of our work, and the discipline transfers directly from the pre-war and nineteenth-century properties we handle in Catonsville, Oella and Ellicott City. We plan the route before we cut anything.
Does waterfront location affect plumbing choices?
It does. Salt air accelerates corrosion on exposed fittings, high water tables affect anything below grade, and flood exposure should inform where mechanicals sit. We factor all three into recommendations rather than treating a waterfront house like an inland one.
How far is Annapolis from your shop?
About twenty-eight miles. Anne Arundel County is part of our service area, and we schedule Annapolis work deliberately given the distance.

