Where we work

26 Maryland towns. One shop.

We are not a franchise with a call centre in another state. Every crew on this map runs out of one building in Bethesda, and the furthest town on it is a 41-mile drive. Pick your town for the permit office, the ZIPs we cover, and what roofs there are actually made of.

26Towns served
6Counties
4.9★139 Google reviews
650+Roofs completed
Get my free inspection → (240) 880-2108
Map of the 23 Maryland towns United Developers servesEach town is plotted at its real coordinates. Rings mark 10, 20, 30 and 40 miles from our Bethesda office. Every town is also listed in text below the map, grouped by county, so the map is never the only way to reach any of them.10 mi20 mi30 mi40 miSilver SpringRockvilleBethesdaGaithersburgGermantownFrederickColumbiaBowiePotomacWheatonOlneyClarksburgChevy ChaseKensingtonHyattsvilleCollege ParkLaurelUpper MarlboroEllicott CityAnnapolisSeverna ParkGlen BurnieWestminsterOur shop · Bethesda
  • Montgomery County
  • Frederick County
  • Howard County
  • Prince George's County
  • Anne Arundel County
  • Carroll County
  • Our Bethesda office

This is a real map, not a picture of one and not an embed: every town is drawn at its own coordinates and every coordinate is one this site already publishes. Takoma Park, Greenbelt, Elkridge are served but are not plotted, because no source we can cite gives a coordinate for them — a pin we guessed would look exactly as confident as the ones we did not. Rings are true miles from our office. Every town is also listed in text below.

Montgomery County

Montgomery County, Maryland

12 communities · Silver Spring · Rockville · Bethesda · Gaithersburg · Germantown · Potomac · Wheaton · Takoma Park · Olney · Clarksburg · Chevy Chase · Kensington

Who issues the roof permit here: Montgomery County Department of Permitting Services (DPS) · 240-777-0311. We pull it; you do not.

Permits, housing stock and storm history for Montgomery County →

Frederick County

Frederick County, Maryland

1 community · Frederick

Who issues the roof permit here: the City of Frederick · 301-600-3808. We pull it; you do not.

Permits, housing stock and storm history for Frederick County →

Howard County

Howard County, Maryland

3 communities · Columbia · Ellicott City · Elkridge

Who issues the roof permit here: the Howard County Department of Inspections, Licenses and Permits (DILP) · 410-313-2455. We pull it; you do not.

Permits, housing stock and storm history for Howard County →

Prince George's County

Prince George's County, Maryland

6 communities · Bowie · Hyattsville · College Park · Laurel · Greenbelt · Upper Marlboro

Who issues the roof permit here: the Prince George's County Department of Permitting, Inspections and Enforcement (DPIE) · 301-636-2050. We pull it; you do not.

Permits, housing stock and storm history for Prince George's County →

GreenbeltServed — not plotted on the map above, because no coordinate for it is published in a source we can cite. The town is covered; the pin would be a guess.

Greenbelt, MD

Prince George's County · has a historic district — exterior work there needs its own review

ZIPs we cover: 20770

Also serving Berwyn Heights, Lanham, Beltsville.

Anne Arundel County

Anne Arundel County, Maryland

3 communities · Annapolis · Severna Park · Glen Burnie

Who issues the roof permit here: the City of Annapolis · 410-263-7961. We pull it; you do not.

Permits, housing stock and storm history for Anne Arundel County →

Carroll County

Carroll County, Maryland

1 community · Westminster

Who issues the roof permit here: the Carroll County Bureau of Permits and Inspections · 410-386-2400. We pull it; you do not.

Permits, housing stock and storm history for Carroll County →

The work itself

One roof, photographed twice

The same specification in every town on this map. 2-year workmanship warranty, MHIC #111971.

BeforeA brick colonial with an aged asphalt roof: dark algae streaking across both slopes, green moss along the shaded valley, and shingles curled or missing above the garage
Algae streaking on both slopes, moss holding in the shaded valley, and shingles curled or gone above the garage. This roof was not leaking yet.
AfterThe same brick colonial photographed from the same place on the street with a new architectural asphalt shingle roof, uniform in colour across every slope
The same house, same spot on the street, same weather. New architectural shingles, uniform across every plane, and the valley detailed rather than patched.

Two frames, one address, the same flat overcast light — you can check that yourself from the trees, the neighbour’s siding and the wet driveway, which is the point. We have not captioned either one with a town, because we do not have a record of which town it is in, and a photograph labelled with a place it might not be is not evidence of anything. If you want to see finished work near you specifically, ask on the call and we will bring addresses.

Every town, in text

The map above needs a screen and a mouse. This list does not, and it goes to the same pages.

Silver Spring, MD · MontgomeryRockville, MD · MontgomeryBethesda, MD · MontgomeryGaithersburg, MD · MontgomeryGermantown, MD · MontgomeryFrederick, MD · FrederickColumbia, MD · HowardBowie, MD · Prince George'sPotomac, MD · MontgomeryWheaton, MD · MontgomeryTakoma Park, MD · MontgomeryOlney, MD · MontgomeryClarksburg, MD · MontgomeryChevy Chase, MD · MontgomeryKensington, MD · MontgomeryHyattsville, MD · Prince George'sCollege Park, MD · Prince George'sLaurel, MD · Prince George'sGreenbelt, MD · Prince George'sUpper Marlboro, MD · Prince George'sEllicott City, MD · HowardElkridge, MD · HowardAnnapolis, MD · Anne ArundelSeverna Park, MD · Anne ArundelGlen Burnie, MD · Anne ArundelWestminster, MD · Carroll

Not sure where your roof stands?

A free 24-hour inspection with a photo report you keep. We photograph the whole roof, show you what we find, and put a replacement price in writing — $600–$900 per square installed, in writing before we start.

  • Full roof replacements — not patches
  • Free 24-hour inspection with a photo report you keep
  • MHIC #111971 · A+ BBB Accredited · 2-year workmanship warranty
4.9from 139 Google reviewsRead them →
Call now — (240) 880-2108Calls answered 24/7
Book my free roof inspection

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4.9★ from 139 Google reviews

What Maryland homeowners say

★★★★★

“I can't speak highly enough of United Developers. They did an amazing job dealing with a difficult insurance company and fixing our home at very little cost to us. Our house looks beautiful.”

Maryam NozaryLocal Guide · Google
★★★★★

“Alex helped me with the estimate, paperwork, schedule, and insurance claim. We were very satisfied with the quality of the roofing replacement and the timeline. They were prompt throughout.”

Terence LewRoof replacement · Google
★★★★★

“If you're looking for a company you can truly trust, look no further. This team is the real deal — they deliver on every promise they make, and their professionalism shines through in every aspect of their work.”

Robert HenryGoogle review · Google

See all 139 reviews on Google →

MHIC #111971 A+ BBB Accredited Licensed & insured in Maryland Family-owned since 2005 650+ roofs completed 2-year workmanship warranty Financing available Se habla español