New windows and doors improve comfort, cut energy bills and add long-term value to your home. Westlight Windows Miami pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
ECO Window Systems Window Replacement: The Miami Owner’s Guide
Replacing an ECO Window Systems window in Miami typically runs $850 to $1,900 per window installed, depending on size, glass package, and whether impact-rated glazing is required by your building code zone. We stock ECO Window Systems-compatible replacement sashes, insulated glass units, balances, and hardware, and most single-window swaps are completed in one visit. Most homeowners discover the problem the same way: a window that won’t stay up, condensation that won’t wipe away from between the panes, or a crank that spins without moving the sash. Tell me what you’re dealing with, and I’ll tell you straight what it’ll take to fix it.
Key takeaways:
- We install replacement windows and parts for ECO Window Systems models across Miami-Dade County, from Kendall to Aventura.
- Written pricing before any work starts, per the Kingswell Guarantee. No revised invoices at the door.
- If the work fails within the guarantee period, we return and correct it at no charge.
- Westlight Windows Miami is an independent installer and is not affiliated with ECO Window Systems.
Which ECO Window Systems Models This Applies To
We work on the full ECO Window Systems lineup most commonly found in Miami homes: horizontal sliders, single-hung and double-hung, casement and awning, and fixed picture windows. The compatibility gotcha most owners run into is mismeasuring the glass thickness. ECO Window Systems units built before roughly 2016 often used 7/8-inch insulated glass, while newer production shifted to 1-inch overall thickness for impact-rated packages. Ordering a replacement sash or IGU based on the frame’s exterior dimensions alone leads to a unit that binds or leaves gaps at the weatherstripping. Our technicians measure the glass pocket, the frame channel depth, and the balance shoe size before we ever order a part.
When we can’t source an OEM ECO Window Systems component quickly, we use aftermarket equivalents that match the original spec: Cardinal or Guardian low-e glass, Amesbury spiral balances, and Truth or Roto hardware depending on the series. The aftermarket route is often faster and costs 15 to 25 percent less than OEM, with no practical difference in fit or lifespan when matched correctly. We’ll tell you which route makes sense for your window before you spend a dollar.
Signs Your ECO Window Systems Window Replacement Is Failing
- Condensation or fog between the panes. This means the IGU seal has failed. Miami’s humidity accelerates seal breakdown once the desiccant inside the spacer is saturated, and the glass can’t be cleaned from the inside. The fix is a new insulated glass unit, not just new caulk.
- Window won’t stay open or drops when released. The balance system has worn out. On double-hung ECO models, the spiral balances lose tension over time, and the window becomes a safety hazard, especially for kids’ rooms and second-story bedrooms.
- Crank spins but sash barely moves. On casement and awning units, the operator gear teeth strip, or the hinge track binds from salt air corrosion. Miami’s coastal exposure accelerates this failure faster than inland areas.
- Visible daylight or water at the frame corner. The sash has sagged or the frame has shifted. On older ECO slider models in Coral Gables and Coconut Grove, we see frame corner seal failure that lets in wind-driven rain during the afternoon thunderstorms.
- Lock or latch no longer aligns and the window won’t secure. The keeper has moved, or the sash has dropped enough that the lock point misses. This is the most underrated sign because a window that doesn’t lock is a break-in risk, not just an air leak.
Replacement Cost & What’s Included
Here’s what we see across Miami on a per-window basis for ECO Window Systems replacement work:
- Insulated glass unit (seal-failure replacement): $425 to $780 installed, depending on glass size, low-e coating, and whether impact-rated glass is needed. Most common on sliders and fixed windows.
- Full sash replacement (broken frame, bent hinge, or stripped operator): $550 to $1,100 installed. Common on casement and awning units.
- Complete window replacement (frame included, new ECO or equivalent unit): $850 to $1,900 installed. Price moves up with impact ratings, larger openings, or third-floor and higher ladder work in buildings like Brickell mid-rises.
Every quote includes the part, all labor, haul-away of the old unit, and sealing of the opening. You get a written price before any work starts, and that price does not change once we’re on site. Our installers are background-checked, uniformed, and follow the Kingswell Way: say the price before the work, show up in the window we gave, leave the place cleaner than we found it, put the guarantee in writing, and come back if it fails.
DIY or Call Us?
Some things are worth checking yourself: confirm which window is actually the problem by closing and locking each one in the room, note the label on the spacer or frame corner that identifies the ECO series, and take a photo of the failed area for reference. But replacing an IGU, a balance, or a sash is not a Saturday project. A wrong measurement turns into a $700 mistake, a dropped sash can take off a finger, and any window above the ground floor carries fall risk. If the window is on a second story, a balcony, or requires impact glass for code compliance, leave it alone and call us at (850) 753-2730. We’ll send a technician who has done this on ECO Window Systems windows across Doral, Hialeah, and Pinecrest, and they’ll bring the parts that match your series on the first trip when possible.
FAQs
Seals on ECO Window Systems insulated glass in Miami’s climate typically last 12 to 18 years before fogging appears, while the frames and hardware can last 25 years or more with maintenance. Coastal salt air from Biscayne Bay shortens hardware life by roughly 20 percent compared to inland Miami homes. Call (850) 753-2730 and we can tell you whether your window is worth a part replacement or a full swap.
Some failures are repairable. A stripped operator gear or worn balance can be swapped without replacing the glass. But a fogged IGU cannot be repaired because the seal failure is inside the sealed glass unit itself. If the glass is still clear, the repair path often costs less than replacement. Call us with a photo of the window and we’ll give you a straight answer on which route applies.
A single-window IGU or sash replacement on the ground floor is generally done in 60 to 120 minutes once the part is on hand. Upper-floor work, stucco patching around the frame, or full-frame tear-outs add time. We’ll give you a real arrival window when you book, and our installers keep the work area covered and clean up before they leave.
We keep the most common ECO Window Systems replacement hardware on our trucks: balances, tilt latches, lock sets, and a range of standard low-e IGUs. Odd-sized glass or impact-rated units often require ordering, usually a 5 to 10 business day wait. Call (850) 753-2730 with your measurements or the glass code and we’ll check availability while you’re on the phone.
Written by Owen Satterfield, Owner, Westlight Windows Miami at Westlight Windows Miami, serving Miami and nearby areas.
Six Reasons Homeowners Choose Westlight Windows Miami
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.