Window Replacement Cost in Rockville, MD
Based on 158 window replacement building permits filed in Rockville between 2015 and 2026, the typical declared project value is $5,000, with most landing between $2,650 and $10,000. These are real records from Rockville's public building-permit data, declared job values, not contractor estimates or AI guesses.
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Window Replacement values over time in Rockville
Median declared value moved from $6,500 in 2020 to $10,000 in 2025, up 54% over that span. Each year below is computed from the filings that actually cleared in Rockville.
Recent window replacement permits in Rockville
Actual filings from Rockville's public permit records. Declared job values, not final paid prices.
| Filed | Declared value | Work described |
|---|---|---|
| 2026-05-15 | $5,000 | Interior work only,Remove (2) Existing basement windows & add (2) New Egress to code c |
| 2026-05-05 | $5,000 | Interior work only,Build 2 new window wells, new stair and new retaining wall. |
| 2026-02-27 | $20,000 | Interior work only,The existing sunroom will be converted into bedrooms. Three sides |
| 2026-01-23 | $8,000 | Interior work only,DEMO EXISTING FIREPLACE. CREATE AN OPENING IN BASEMENT TO CREATE A NEW |
| 2025-12-18 | $15,000 | Foyer to be inspected only. No change to egress windows. |
| 2025-12-17 | $12,000 | Customer Wants To Use ePlans,Basement renovation (new layout in the basement area) and Add |
| 2025-12-01 | $60,000 | Revision 1 - REVISION APPROVED 2/13/2026- The manufacturer provided me with a set of drawi |
| 2025-11-17 | $3,000 | Customer Wants To Use ePlans Interior work only,Remove (1) existing basement window & ins |
| 2025-11-07 | $25,000 | Interior work only, Cut new opening in basement front wall for (1) New 4' x 4' egress wind |
| 2025-10-17 | $15,000 | Interior work only, REPLACE 1 SLIDER WINDOW WELL WITH AN EGRESS WINDOW WELL AND ADD 1 NEW |
| 2025-10-14 | $3,000 | This is Bishwajeet Chatterjee, homeowner of 10129 Dalmatian Street in The Grove community. |
| 2025-10-03 | $2,500 | Customer Wants To Use ePlans Interior work only,Installing two egress windows in basement |
| 2025-10-03 | $5,500 | DEMO WALL SECTION FOR NEW EGRESS WINDOW. ADD HEADER AND LINTEL |
| 2025-09-26 | $7,500 | INSTALL NEW BAY WINDOW |
| 2025-09-11 | $4,000 | Customer Wants To Use ePlans Interior work only,Convert existing window into sliding glas |
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Add your price →How to read these numbers
A permit's declared value is the job cost the owner or contractor stated when they pulled the permit. It tracks the real cost of the work but can run a bit under what was actually paid, since it often leaves out some labor and finish costs. Treat the range as a grounded starting point. What window replacement actually costs in Rockville comes down to home size, materials, and scope.
Where this comes from
Every figure is pulled from Rockville's public building-permit records and classified by the work described. Nothing is estimated or AI-generated. How the data works. The moment a Rockville homeowner adds a real receipt, this page upgrades to show what neighbors actually paid next to these permit values.
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