Montgomery County · MD

Bathroom Remodeling in Potomac

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.

★★★★★ 139 Reviews · A+ BBB · MHIC #111971 · VA Class A #2705183185 · Licensed & Bonded in MD & VA

Start your Potomac bathroom remodeling with a written scope

Tell us the two things we need to call you back — a project manager rings you to book the free walkthrough. We work Bethesda, North Potomac, Rockville and every Potomac ZIP: 20854.

  • A written, line-item scope for your Potomac project before anyone swings a hammer
  • Permits pulled through the Montgomery County Department of Permitting Services under MHIC #111971
  • One project manager from demolition to final walkthrough
4.9from 139 Google reviewsRead them →
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Permits & inspections in Montgomery County

The paperwork is the part most contractors gloss over.

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.

Local to Potomac

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.

What we find in Potomac homes

The house decides half the scope.

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 included
  • Waterproofing installed and inspected behind the tile, not patched after
  • Exhaust ventilation ducted to the exterior
  • GFCI protection and code-compliant lighting in wet zones
  • Rough-in inspection passed before tile goes up
Planning range — Montgomery County
$12k – $45k

A 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.

Financing is available — most homeowners spread a project this size over monthly payments rather than paying cash up front.

20854BethesdaNorth PotomacRockvilleCabin John

Free Potomac walkthrough

A written, line-item scope for your bathroom remodeling project. No design fee, no obligation.

By submitting you agree United Developers may call or text you about your request, including by autodialed/automated means and AI voice, at the number provided. Consent is not a condition of purchase. Msg/data rates may apply. Reply STOP to opt out.

★★★★★
Legitimately excellent. If your roof qualifies to be replaced due to storm damage, go with United Developers. Anthony was with me every step of the way — through the claims process and after the install.
Alex Gray · verified Google review

139 reviews at 4.9 stars across Google, and most of them are for our roofing and exterior work — that is the business we started in. The crew, the licences and the paperwork are the same ones now carrying bathroom remodeling projects. Read all our reviews →

Also in Potomac

One contractor for the rest of the house

Our Potomac crews cover Bethesda, North Potomac, Rockville, Cabin John and every ZIP in the area — 20854.

Potomac bathroom remodeling questions

Straight answers

Do you handle bathroom remodeling in Potomac, MD?

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.

Who pulls the permit for a Potomac bathroom remodeling project?

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.

What should I expect in a Potomac home?

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 does bathroom remodeling cost in Potomac?

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.

Is the Potomac walkthrough and estimate free?

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.

Why do bathroom quotes vary so much?

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.

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