Window replacement cost $150 to $3,500+ per window depending on the replacement type, frame material, and whether your home is coastal or inland.
A lot of homeowners mix up replacement and installation. They are not the same thing. Replacement swaps out an existing window for a new one. Installation puts a window where none existed before. Costs, labor time, and permit needs all differ between the two. This guide covers every line item on the quote, so nothing catches you off guard.
Key Takeaways
- Replacement type drives your price the most. Glass only starts at $150. Full-frame runs up to $1,200 per window.
- Materials make up 85 per cent of your total bill. Labour covers the remaining 15 per cent.
- Coastal Delmarva homes cost 20 to 35 percent more than inland properties due to salt air and storm exposure.
- Vinyl and fibreglass hold up best on the peninsula. Both handle humidity and coastal conditions without heavy upkeep.
- Maryland homeowners see a 70 to 72 percent ROI on window replacement, plus $200 to $400 in yearly energy savings.
- Three moves cut your bill the most: bundle windows, book off-peak, and get at least three estimates.
What Is the Average Window Replacement Cost in Delmarva?
Glass-only replacement starts at $150, retrofit runs $450 to $950, and full-frame replacement costs $800 to $1,200 per window.
| Replacement Type | What It Means | Cost Per Window |
| Glass-only replacement | Replace just the glass, keep the frame | $150 – $400 |
| Retrofit / Insert replacement | New window fits inside existing frame | $450 – $950 |
| Full-frame replacement | Entire window and frame removed and replaced | $800 – $1,200+ |
- Glass-only replacement works when your frame is still solid and square. It is the cheapest option but not always possible on older Delmarva homes
- Retrofit replacement is the most common type on the peninsula. The old glass and sashes come out but the frame stays. It costs less and takes less time
- Full-frame replacement removes everything down to the rough opening. It works best when frames have shifted, rotted, or taken on water damage over the years
Coastal homes near Rehoboth Beach or Ocean City run 20 to 35 percent higher than inland properties. A full home with 10 to 12 windows typically lands between $8,000 and $15,000.
What Does the Full Window Replacement Cost Actually Include?
Every quote covers five things: the window unit, labor, permit fees, old window disposal, and frame repairs if needed.
| Cost Item | Typical Range Per Window |
| Window unit (materials) | $200 – $800 |
| Labor / installation | $100 – $300 |
| Permit fees | $75 – $200 |
| Old window disposal | $25 – $75 |
| Frame repairs (if needed) | $50 – $200+ |
- Materials make up around 85 percent of the total window cost. The glass, frame, and hardware take up the bulk of that number
- Labor runs $100 to $300 per window in Maryland. The crew removes the old window and fits the new one into the wall opening
- Permit fees vary by county. Wicomico and Worcester in Maryland work differently from Kent and Sussex in Delaware. Your installer pulls those permits for you
- Disposal of the old window sometimes carries a separate fee. Confirm this in writing before you sign the contract
- Frame repairs add $50 to $200 per window on top of the base price. Bay humidity and salt air damage frames on the Delmarva Peninsula faster than in dry inland markets
How Does the Price Change by Window Style?
Prices run from $300 for a single-hung up to $3,500 for a bay or bow window, and double-hung at $450 to $850 is the most common choice across Delmarva.
| Window Style | Installed Cost Per Window |
| Single-Hung | $300 – $600 |
| Double-Hung | $450 – $850 |
| Casement | $500 – $1,000 |
| Slider / Gliding | $450 – $900 |
| Picture Window | $300 – $800 |
| Bay / Bow | $1,200 – $3,500+ |
Double-hung windows open from both the top and bottom, which suits Delmarva summers well. Bay and bow windows push out from the wall and need extra structural support, which adds labor time and cost. Casement windows swing outward and seal tightly, a good fit for homes near the Chesapeake Bay, where wind and moisture hit from multiple directions.
How Much Does Window Frame Material Add to the Cost?
Vinyl runs $450 to $850 per window, fiberglass hits $800 to $1,600, wood goes up to $2,000, and aluminum starts at $300.
- Vinyl: $450 to $850 per window installed. Polyvinyl chloride frames resist moisture and need almost no upkeep. The most popular window frame material on the peninsula
- Fiberglass: $800 to $1,600 per window. Handles salt air, bay humidity, and corrosion better than vinyl over time. A strong pick for homes near the Chesapeake Bay
- Wood: $900 to $2,000+ per window. Wood windows need regular painting and sealing. Delmarva’s wet summers speed up rot on wood frames faster than most homeowners plan for
- Aluminium: $300 to $700 per window. The most budget-friendly option but a poor insulator. Cold winters and hot humid summers make aluminum a weak long-term choice here
Vinyl suits most homes on the peninsula. Fiberglass costs more upfront but outlasts vinyl in coastal conditions.
What Signs Tell You It Is Time to Replace and Not Just Repair?
Drafts, foggy glass, soft frames, stuck windows, and rising energy bills all tell you repair is no longer worth the money.
Salt air, humidity, and temperature swings between seasons wear down Delmarva windows faster than inland homes. Look for these five signs:
- Drafts near closed windows: The seal has failed. Your heating and cooling system works harder to compensate
- Fog or condensation between the panes: The glass seal broke. That window no longer provides proper building insulation
- Soft or spongy frames: Bay humidity and Atlantic salt air break down wood frames on the peninsula faster than anywhere inland
- Windows that stick or will not lock: Warped frames reduce home security and push energy bills higher
- Higher electricity bills with no clear cause: Old single-hung window units or failed double-hung windows account for 25 to 30 percent of total home energy loss
All five signs appear earlier on Delmarva homes than on homes in drier inland markets.
Is Window Replacement Actually Worth the Money in Delmarva?
Yes, Maryland and Delaware homeowners get strong returns through energy savings, higher home value, and lower insurance costs.
- Maryland homeowners see 70 to 72 percent ROI on window replacements, plus $200 to $400 in annual energy bill savings
- Coastal homeowners with impact-rated windows qualify for 5 to 15 percent insurance premium reductions
- Over 20 years, energy savings on a standard Delmarva home reach $3,000 to $6,000
- Energy-efficient windows with Energy Star certification earn a federal tax credit of up to $600
- Impact-rated windows near the bay protect against storm damage and cut insurance costs at the same time
How Can You Pay Less for Window Replacement in Delmarva?
Bundle your project, book in the off-season, and get three estimates before you commit to anyone.
- Replace all windows at once: Labor costs per window drop when a crew handles the full job in one visit
- Get three estimates: Local Delmarva pricing varies more between companies than most homeowners expect. One extra quote regularly saves hundreds
- Book in fall or winter: Demand drops after summer. Off-season jobs come with lower prices and faster start dates
- Ask about financing: Many local window companies offer no-interest payment plans. Ask about this before you agree to anything
- Check the Energy Star tax credit: Qualifying efficient windows earn up to $600 back on your federal taxes. Ask your installer which products qualify before you order
Why Do Delmarva Homeowners Trust The Window Source of Delmarva?
Locally based, no-pressure estimates, and a lifetime warranty on every window they install.
The Window Source of Delmarva runs out of Marion Station, MD. They cover the full peninsula, including Salisbury, Dover, Middletown, and surrounding communities across Maryland and Delaware.
- Free in-home estimates
- Lifetime warranty on both the window and the installation labor
- Services covering replacement windows, patio doors, entry doors, and siding
- Local crew on every job, not a subcontractor from a national call center
The Window Source of Delmarva handles everything from the first estimate through the final job. The Window Source of Delmarva knows the local building codes and which frame materials last longest here.
Estimate your replacement cost
Every home on the peninsula is different, and the window replacement cost range reflects that. The only number that matters is the one for your specific home. The Window Source of Delmarva offers free in-home estimates with no obligation. Call them at (443) 978-8261 or visit their site to book yours today.
FAQs
What is the difference between window replacement and window installation?
Replacement swaps out an existing window for a new one. Installation puts a window where none existed. Costs and labor time differ between the two.
Does the replacement cost include removing the old window?
Usually yes, but confirm it in writing. Some contractors charge separately for old window disposal. Always ask before you sign.
Can I just replace the glass and keep the frame?
Yes, if the frame is still solid. Glass-only replacement runs $150 to $400 per window. A local pro can tell you whether your frame qualifies.
How long do replacement windows last in Delmarva?
Vinyl windows last 20 to 40 years. Fiberglass runs 40 to 50 years. Salt air and humidity shorten lifespan on lower-grade materials, so frame choice matters here.
Will new windows lower my energy bill?
Yes. Most Maryland homeowners save $200 to $400 per year after switching to energy-efficient windows.