Window Replacement Cost in Delaware (2027 Price Guide)
Price your windows in Delaware
In Delaware, a typical job of 10 double-hung vinyl replacement windows runs $4,660 to $7,880, installed. Per opening, expect $465.75 to $787.34; we budget $5,550 for the set.
Those figures use our windows calculator with its standard options: Low-E glass with argon fill, basic build quality, no grids and the existing interior trim reused. Prices here run about 4% below the national average.
Window Replacement Cost in Delaware by Frame Material
Here is the same 10-window job in each frame the calculator offers. Wood runs $7,400 to $12,500 and fiberglass $8,010 to $13,540, so vinyl wins on price by a wide margin. Window style matters too. One double-hung unit runs about $554.47 installed, a two-lite slider about $874.32, and a bay or bow about $3,205.19.
| Frame (10 double-hung windows) | Installed cost | Estimate | Per window |
|---|---|---|---|
| Vinyl | $4,660 to $7,880 | $5,550 | $465.75 – $787.34 |
| Wood | $7,400 to $12,500 | $8,810 | $739.24 – $1,249.66 |
| Fiberglass | $8,010 to $13,540 | $9,540 | $800.69 – $1,353.55 |
| Aluminum | $7,700 to $13,020 | $9,170 | $769.96 – $1,301.61 |
Price per Window by Style
| Style (vinyl) | Installed, per window | Estimate |
|---|---|---|
| Double-hung | $465.75 to $787.34 | $554.47 |
| Sliding (2-lite) | $734.43 to $1,241.53 | $874.32 |
| Bay or bow | $2,692.36 to $4,551.37 | $3,205.19 |
Build Your Order: Upgrades for 10 Windows
Each add-on below is the change from the base job of 10 vinyl windows - our estimate, before the low/high spread:
Picking Windows for the Delaware Climate
In a two-season climate, the comfort gain from new glass shows up in January and July alike. Choose a Low-E package rated for your climate zone, not the cheapest clear glass.
Climate regions run from 1 (cool) to 5 (hot); Delaware sits in region 3.
Close to the ocean, corrosion is the slow threat: aluminum frames pit and window hardware stiffens. Ask for stainless steel balances and locks, and rinse sliding tracks now and then.
Damp air works on wood. Wood frames ($7,400 to $12,500 for this job) need regular paint and caulk upkeep in Delaware; vinyl and fiberglass do not rot, which is a fair reason to choose them.
Cold winters are where the glass package earns its keep. The base price includes Low-E with argon; giving up the argon saves just $120 for 10 windows, so it is worth keeping.
Timing is flexible: a good crew opens and seals one window at a time. Lead time on custom sizes, often several weeks, is the bigger scheduling factor.
Getting a Fair Window Quote in Delaware
Line up bids on equal terms. These are the details that explain most of the gap between quotes:
- Insert or full-frame. An insert keeps the old frame and costs less; full-frame removal fixes rot and air leaks but adds labor and trim work.
- Glass package. Get the Low-E type, argon or krypton fill and U-factor in writing for every window.
- Trim and finish. New interior stops and exterior metal capping are often extra - here they add about $1,910 for 10 windows.
Window Prices in Delaware Cities
Statewide numbers hide local differences. Our 10 double-hung vinyl windows, priced city by city:
10 vinyl windows, installed
- Wilmingtonpop. 71,000$4,700 – $7,940
- Doverpop. 39,000$4,660 – $7,870
- Newarkpop. 31,000$4,640 – $7,840
- Middletownpop. 24,000$4,670 – $7,900
City figures = the statewide price adjusted by city size (population and metro area), within ±6% - the same adjustment each city guide uses.
Common Questions About New Windows in Delaware
Is there a typical per-unit window price in Delaware?
Per opening, plan on $465.75-$787.34 for a vinyl double-hung. A slider comes to about $874.32; ordering one or two units alone usually costs more each.
Vinyl or fiberglass windows - which is the better value?
For budget and low upkeep, vinyl is hard to beat. Fiberglass ($8,010 to $13,540 here) and wood ($7,400 to $12,500) make sense for historic looks, big glass areas or homes where resale buyers expect them.
How long will installers be in my house?
Installation of 10 windows is typically a one- or two-day job, with each opening closed up the same day. The wait for made-to-order units is usually the longer part.
Figures are planning estimates for Delaware from the same math as our windows calculator. A contractor's measured quote is the final word on your project.
