District of Columbia pricing
Window Replacement Cost Calculator — District of Columbia
Price a window replacement by count, frame material and glass package — per window and whole house. Every figure below is already adjusted for District of Columbia labor and material pricing.
Model reviewed August 2026
Does window replacement cost cost more in District of Columbia?
+24% versus the national baseline
Installed prices in District of Columbia run about 24% above the national baseline. Permit fees are about 22% higher than the national average. Homeowner permits allowed on owner-occupied property; licensed trades required for electrical, plumbing and gas.
A single citywide permitting authority reviews every project, and historic-district review covers a large share of the rowhouse stock — exterior work often needs design approval before a building permit is issued.
Compare with the national average window replacement cost calculator.
Estimated total cost
$9,580 – $13,609
Installed, all windows
- Cost per window
- $780 – $1,109
- Windows priced
- 12
- Permit
- $248
Estimates only. Local pricing, site conditions and code requirements change the real number.
What changes the number in District of Columbia
| Local cost indexAbove the national baseline | 1.24x national |
|---|---|
| Permit fee index | 1.22x national |
| Code basisStatewide code applies | DC Construction Codes, based on the IRC with District amendments |
| Owner-builder posture | Homeowner permits allowed on owner-occupied property; licensed trades required for electrical, plumbing and gas |
| Largest markets | Washington |
The formula
Cost = windows x (unit price x frame multiplier x glass multiplier) + install type + permit
Insert replacements reuse the existing frame and are cheapest. Full-frame replacement removes the frame down to the studs and adds roughly 25–40% per opening.
Covered markets in District of Columbia
City-level cost and permit pages with local building department links.
Frequently asked questions
How much does it cost to replace a window?
Most standard replacement windows run $450 to $1,200 installed per opening in 2026. Large, custom-shaped or impact-rated units cost considerably more.
Is full-frame or insert replacement better?
Insert replacement is cheaper and faster when the existing frame is sound. If there is rot, water intrusion or you want a larger glass area, full-frame is the right call.
Sources
Sources & verification
- DC Department of Buildings
- NFRC window performance ratings
- ENERGY STAR windows criteria
- International Code Council (IRC/IBC)
Model vintage August 2026. The links above are the issuing agencies' own pages — we publish them so you can confirm the current rule yourself, not as evidence that each fact on this page was re-checked with them today. Cost figures are modeled estimates based on national baselines adjusted for local labor and material pricing, not quotes. Permit rules change; confirm with the building department before starting work.