The parts that matter most in a bathroom are the ones you cannot see afterward. We are a licensed contractor in Maryland (MHIC #111971) — we pull the permits through the Montgomery County Department of Permitting Services, coordinate the licensed trades, and hand you a written line-item scope before demolition starts.
Bathrooms almost always need plumbing and electrical permits, plus a building permit if the layout moves. Two requirements catch homeowners out: GFCI protection, and exhaust ventilation that actually terminates outside the building rather than into a joist bay or an attic. Both get checked at inspection.
Your Potomac permit goes through the Montgomery County Department of Permitting Services. We pull it under our license and we hold the inspection schedule — you do not chase inspectors and you do not sign the application.
A lot of Potomac sits outside Montgomery County's public water and sewer envelope, which means well and septic. That matters more than homeowners expect: adding a bedroom — in an addition or a finished basement — can require a septic capacity review before the county will permit it, because bedroom count is how septic systems are sized. On a large-lot Potomac property this is the first thing to check, not the last.
Potomac is large-lot housing — much of it 1960s–1980s with substantial later renovation, plus newer custom construction. Many neighborhoods also carry HOA covenants requiring architectural approval for exterior changes, which runs on a separate track from the county permit.
What's includedA planning range, not a quote. Your written line-item price comes after a free on-site walkthrough. HVAC, electrical and plumbing are performed by licensed trade partners.
A written, line-item scope for your bathroom remodeling project. No design fee, no obligation.
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Our Potomac crews cover Bethesda, North Potomac, Rockville, Cabin John and every ZIP in the area — 20854.
Yes. United Developers is a licensed contractor in Maryland (MHIC #111971) and works throughout Potomac and Montgomery County, including 20854 and nearby Bethesda, North Potomac, Rockville.
We do, under our license, through the Montgomery County Department of Permitting Services. Bathrooms almost always need plumbing and electrical permits, plus a building permit if the layout moves. Two requirements catch homeowners out: GFCI protection, and exhaust ventilation that actually terminates outside the building rather than into a joist bay or an attic. Both get checked at inspection.
A lot of Potomac sits outside Montgomery County's public water and sewer envelope, which means well and septic. That matters more than homeowners expect: adding a bedroom — in an addition or a finished basement — can require a septic capacity review before the county will permit it, because bedroom count is how septic systems are sized. On a large-lot Potomac property this is the first thing to check, not the last.
Most Potomac projects land in the $12k – $45k range. That is a planning range for Montgomery County, not a quote — your written price comes after a free on-site walkthrough.
Yes. The walkthrough and the written scope are free and yours to keep whether or not you hire us. There is no design fee and no consultation invoice.
Because half the work is invisible. A quote that assumes your existing subfloor, supply lines and venting are all reusable will always look cheaper than one that budgets for what is actually behind the wall. We open up, look, and put the real scope in writing before you commit.