Wood & Fiberglass Window Replacement cost: Charleston vs Mount Pleasant (2026)
There's essentially no price gap here: wood and fiberglass window replacement runs close to $17,900 in both Charleston and Mount Pleasant in 2026.
Charleston SC
Typically around $17,900
Mount Pleasant SC
Typically around $17,900
Charleston vs Mount Pleasant: full breakdown
| Factor | Charleston | Mount Pleasant |
|---|---|---|
| Typical 2026 cost | $17,900 | $17,900 |
| Estimated range | $10,250–$25,500 | $10,250–$25,500 |
| Labor index (vs US) | ×0.99 | ×0.99 |
| Climate zone | Hot | Hot |
| Climate factor | ×1.02 | ×1.02 |
| Local permit | $125 | $125 |
| Labor share | $9,850 | $9,850 |
| Materials/equipment | $8,050 | $8,050 |
All figures are 2026 localized planning estimates for wood and fiberglass window replacement — get an actual quote before you commit.
A wash — choose on quality, not city
With no real price gap on wood and fiberglass window replacement, the choice comes down to contractor quality and timing, not which city you're in.
Wood and fiberglass window replacement by type: Charleston vs Mount Pleasant
Every wood and fiberglass window replacement type gets its own localized price for each metro, using the same labor, climate and permit adjustments — a true apples-to-apples comparison.
| Type | Charleston | Mount Pleasant |
|---|---|---|
| Fiberglass | $10,250–$22,450 | $10,250–$22,450 |
| Composite | $11,300–$23,450 | $11,300–$23,450 |
| Aluminum-clad wood | $13,300–$27,500 | $13,300–$27,500 |
| Solid wood | $14,350–$30,550 | $14,350–$30,550 |
Localized 2026 planning estimates — not quotes. Each city adjusts the national wood and fiberglass window replacement range for local labor, climate and permits.
Wood and fiberglass window replacement by number of windows: Charleston vs Mount Pleasant
Wood and fiberglass windows are a premium upgrade — figure roughly $800–$2,500 per window installed depending on material, size, and finish. Cost scales with the number of openings, and wood typically runs higher than fiberglass.
| Size | Charleston | Mount Pleasant |
|---|---|---|
| 5 windows | $4,700–$11,300 | $4,700–$11,300 |
| 10 windows | $9,250–$20,400 | $9,250–$20,400 |
| 15 windows | $13,800–$28,550 | $13,800–$28,550 |
| 20 windows | $18,400–$36,650 | $18,400–$36,650 |
| 25+ windows (whole home) | $22,450–$45,750 | $22,450–$45,750 |
All figures are 2026 localized planning estimates for wood and fiberglass window replacement — get an actual quote before you commit.
Cheapest time for wood and fiberglass window replacement in either city
Why fall and winter save money: installers are hungry for work and manufacturers are running promotions, and those two discounts happen to overlap in the same off-season window.
How much should new windows really cost you?
A window budget rests on three choices — frame material, glass package and how it's installed. Our editors weigh in on where the money is well spent.
The efficiency case
Extreme climates are the one setting where premium glazing pays for itself over the years: triple-pane and gas-fill packages hold indoor temperatures steadier and trim the utility bill, with rebate eligibility a possible bonus on ENERGY STAR models. Between a better frame and better glass, the glass is where the payback lives.
The value case
Vinyl, double-pane, low-E windows deliver most of the comfort and efficiency for the lowest price. For whole-home replacements on a budget, they're the sensible default.
The install case
A perfect window installed badly leaks and fails. Full-frame replacement with proper flashing beats a cheap pocket insert in a rotted opening — match the install method to your home's condition, not just the price.
Buy the glass package your climate needs, default to vinyl frames unless you have a reason not to, and never let install quality be the thing you cut to hit a number.
Charleston vs Mount Pleasant
Is wood and fiberglass window replacement cheaper in Charleston or Mount Pleasant?
wood and fiberglass window replacement costs about the same in both — roughly $17,900 in each city.
Why does wood and fiberglass window replacement cost more in Mount Pleasant than Charleston?
Mount Pleasant's higher labor index (0.99 vs 0.99 in Charleston) is the biggest factor, with the hot/hot climate split playing a smaller role.
How much is wood and fiberglass window replacement in Charleston, SC?
Expect to pay $10,250 to $25,500 for wood and fiberglass window replacement in Charleston in 2026, averaging around $17,900.
When is the cheapest time to buy wood and fiberglass window replacement — and does it differ by city?
The best window is the same in both Charleston and Mount Pleasant: Late fall and winter, when demand drops and installers discount to keep crews busy — typically 5–15% off peak pricing. The most expensive time anywhere is an emergency replacement during spring and summer peak.
Should I choose where to live based on wood and fiberglass window replacement cost?
Not on this basis — Charleston and Mount Pleasant cost about the same. Weigh contractor quality, scope, equipment tier and timing instead.
Compare wood and fiberglass window replacement in other cities
Updated June 2026 · By Serhat Özçelik