Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Trusted Window Replacement for Lantana Homeowners
Window replacement in Lantana typically costs $650-$2,400 per opening depending on frame type, glazing specification, and whether the job requires full-frame removal or insert replacement; for detailed pricing factors, see our Window Replacement cost guide. Most Lantana homes built between 1985 and 2010 carry original aluminum or early vinyl units that have exceeded their service life, and Sightline Windows & Doors Lantana completes these replacements under the Haven Standard with a written price before any work starts. Call (561) 461-2062 to schedule your measured survey; estimates are free and the quote you receive is the document we work from.
Since 2012, we’ve installed and replaced more than 18,000 windows and doors across Palm Beach County, every one with a written price before work started and a documented photo record when it finished. Lantana’s coastal position, two miles from the Atlantic, subjects window frames to salt-laden air that accelerates corrosion in aluminum hardware and degrades vinyl stabilizers faster than inland markets. We’ve measured this difference in the field: units facing east toward Hypoluxo Island typically show frame deterioration 18-24 months ahead of west-facing openings in the same neighborhood. Our crews are background-checked, uniformed, and identified by license number before arrival, operating under Haven Clause 3 (Verified Crews). Live phone coverage is available 24/7, not a callback window.
What Our Window Replacement Service Includes
Full Frame Replacement
Full frame replacement removes the entire existing window unit, including the frame, sill, and interior/exterior trim, down to the rough opening. You need this when the frame itself has failed, when you’re changing window style or size, or when the original installation has allowed water intrusion that has compromised the surrounding wall structure. In Lantana, we perform full frame replacements most often in homes near the Intracoastal Waterway where wind-driven rain has penetrated sealant joints over decades, and in properties where original aluminum frames have thermally fatigued. Our measured survey documents the rough opening dimensions, wall thickness, and any structural repair needed; that document becomes your written quote under Haven Clause 1, and the final invoice cannot differ from it.

Insert Window Replacement
Insert replacement, sometimes called pocket replacement, installs a new window unit into the existing frame, preserving the original trim and surrounding wall finish. This is the right approach when the frame is structurally sound, properly flashed, and square within the opening, and when you want to minimize disruption to interior finishes. In Lantana’s 1960s and 1970s concrete block construction, we find insert replacement particularly suitable because the original masonry frames are often dimensionally stable even when the operating hardware and glazing have failed. We measure the existing frame opening to 1/16 inch, specify the insert unit’s compression fit and sealant detail, and document the sightline, the visible glass dimension you’ll actually see, before you approve the order.

Vinyl Replacement Windows
Vinyl replacement windows use PVC extrusions with internal chambers for thermal break and structural rigidity, specified by wall thickness and corner fusion method. You need vinyl replacement when your priority is thermal performance at a defined price point, when minimal exterior maintenance is important, and when the coastal environment demands UV-stabilized formulations rated for South Florida exposure. We specify vinyl units from CWS and ECO Window Systems by performance tier, not by margin: CWS for multi-chambered frames with reinforced meeting rails in high-wind zones, ECO Window Systems for thermally efficient configurations where U-factor and SHGC (solar heat gain coefficient) drive the specification. Every vinyl unit we install carries the full manufacturer warranty plus our 365-Day Done Right Promise under the Haven Standard.

Energy-Efficient Upgrade
An energy-efficient upgrade replaces existing glazing and/or frames with units engineered to reduce thermal transfer and solar heat gain, measured by NFRC-certified U-factor and SHGC ratings. You need this when your cooling costs are disproportionate to square footage, when rooms with western exposure become uninhabitable in afternoon hours, or when you’re replacing failed single-pane units in older Lantana homes. We specify low-E coatings, argon gas fill, and warm-edge spacer systems based on orientation and shading, not by package. A west-facing opening in Lantana’s Lake Osborne Estates, for example, receives a different glazing specification than a north-facing unit under mature oak canopy. The measured survey records each opening individually; the written quote specifies the performance values you’ll receive, not generic “energy efficient” language.

Window Maintenance & Care
Window maintenance and care extends service life through hardware adjustment, weatherstrip replacement, sealant renewal, and operational inspection, documented with a condition report. You need this when units are functional but showing early wear, when you’re preparing a property for sale and need documented condition, or when you want to prioritize replacement spending across multiple openings. In Lantana, we perform maintenance most frequently on impact-rated units where the laminated glass and reinforced frames are sound but the operating hardware, particularly in coastal salt air, requires lubrication, adjustment, or replacement. Our maintenance visit produces a documented photo record of each opening’s condition, a written scope of recommended work with priority ranking, and a separate quote for any replacement units indicated.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Brands We Service for Window Replacement

We work with eight manufacturer lines, specified by what the opening requires, not by what is in stock. For vinyl replacement in Lantana, we regularly specify CWS units with their multi-chambered frame design and reinforced meeting rails, particularly in wind-borne debris regions where structural loading matters. We’ve installed hundreds of CWS configurations across Palm Beach County, including Window Replacement - Wellington, and maintain direct access to their technical support and warranty claim process. For thermally efficient upgrades, we specify ECO Window Systems where U-factor and SHGC performance drive the selection; their warm-edge spacer and low-E coating options allow precise tuning to orientation and exposure. ES Windows provides impact-rated vinyl and aluminum systems that we’ve installed in Lantana properties from Hypoluxo Island to the mainland, with documented performance in both large-format and geometric configurations.
Whether you have CGI, CWS, ES Windows, ECO Window Systems, or any other make, we can help. Our measured survey identifies the existing unit’s manufacturer, series, and date code where visible; when labels are obscured or missing, we measure frame dimensions, glazing thickness, and hardware mounting patterns to specify the correct replacement. We do not require you to match the original manufacturer. Haven Clause 5 (No surprises) means the replacement specification, with manufacturer, series, and performance values, is written into your quote before any work starts.
Before
AfterSigns You Need Window Replacement Right Now
- Visible frame deterioration or corrosion. Aluminum frames show white oxidation or pitting; vinyl frames crack, chalk, or sag at corners. In Lantana’s salt-air environment, we’ve measured hardware corrosion advancing from surface discoloration to structural failure in as little as 36 months on east-facing units. Once the frame integrity is compromised, weather sealing fails progressively and repair becomes replacement.
- Condensation between glass panes. Fogging or permanent moisture inside an insulated glass unit indicates seal failure and the loss of inert gas fill. The unit’s thermal performance drops to approximately that of single glazing, and the moisture promotes frame rot in wood or clad-wood units. We verify seal failure with a glazing edge inspection and specify replacement IGUs or full units based on frame condition.
- Operational difficulty or hardware failure. Windows that stick, won’t stay open, or have broken locks, balances, or rollers create ventilation and security problems. In coastal markets like Lantana, salt accumulation in balances and tracks accelerates wear; we’ve found that hardware replacement on units over 15 years old often fails again within 24 months because the frame itself has distorted from thermal cycling.
- Noticeable air infiltration or temperature differential near the window. Drafts, curtains that move in closed windows, or rooms that are significantly warmer or cooler than adjacent spaces indicate failed weatherstripping, frame distortion, or improper installation. We diagnose infiltration with a smoke pencil and thermal imaging during the measured survey, distinguishing between repairable seal failure and frame replacement need.
- Escalating cooling costs without usage change. When HVAC runtime increases disproportionately to outdoor temperature, failed window performance is a common contributor, particularly in Lantana homes with original single-pane or early insulated glass. We calculate approximate annual savings from replacement based on your current glazing, square footage, and FPL rate structure, documented in the written quote.
Our Window Replacement Process - Step by Step

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Measured survey and condition documentation. Our technician arrives at the scheduled time, identified by name and license number under Haven Clause 3. We measure each opening to rough dimension, record frame type, glazing specification, and hardware condition, and photograph existing conditions. You receive a copy of the measured survey to keep; this document and the written quote derived from it are the same under Haven Clause 1.
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Written quote with specification. Within 24 hours of the survey, you receive a written quote naming the manufacturer, series, performance values (U-factor, SHGC, design pressure rating where applicable), scope of work, and fixed price. The quote specifies full frame or insert method, interior and exterior finish responsibility, and debris removal. This price does not change once accepted; Haven Clause 5 prohibits change orders for conditions documented at survey.
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Order and scheduling confirmation. Upon acceptance, we order specified units with confirmed lead times and schedule installation. For standard vinyl and aluminum configurations, this is typically 2-4 weeks; custom sizes, impact-rated laminates, or specialized finishes may extend to 6-8 weeks. We confirm the installation date in writing and notify you of any manufacturer delay within 24 hours of our notification.
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Installation with documented evidence. Our uniformed, background-checked crew arrives on schedule with the specified units. Installation follows manufacturer specifications for fastening pattern, sealant application, and flashing integration; we photograph critical stages including rough opening condition, fastening, and final sealant for the documented photo record included on every job. The crew lead reviews completed work with you before departure.
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Final inspection and warranty documentation. We perform a post-installation inspection, verify operation of all units, and provide written warranty documentation: manufacturer warranty on products, our 365-Day Done Right Promise on workmanship, and the complete photo record. Payment is due only upon satisfactory completion; the final invoice matches the written quote exactly.
How Much Does Window Replacement Cost in Lantana?
A typical insert window replacement in Lantana runs $650-$1,200 per opening, while full frame replacement ranges $1,100-$2,400 depending on size, frame material, and glazing specification. Impact-rated units for HVHZ (High Velocity Hurricane Zone) compliance add $200-$500 per opening above standard performance equivalents. Energy-efficient upgrades with low-E/argon configuration fall within the standard range because the glazing upgrade cost is partially offset by manufacturer volume pricing we pass through.
| Configuration | Price Range (per opening) | Typical Application |
|---|---|---|
| Vinyl insert replacement, standard glazing | $650-$950 | Sound frame, single-hung or double-hung |
| Vinyl full frame replacement, standard glazing | $1,100-$1,600 | Failed frame, size change, or structural repair |
| Impact-rated vinyl or aluminum, full frame | $1,400-$2,400 | HVHZ compliance, large format, or custom shape |
| Energy-efficient upgrade, low-E/argon | $750-$1,400 | West/south exposure, high cooling load, LEED target |
Several factors affect where your project falls in these ranges. Opening size and operating style matter: a fixed picture window costs less than an equal-area casement with hardware and egress requirements. Structural repair to the rough opening, common in Lantana homes where original installation lacked proper flashing, adds labor and material. Finish carpentry on the interior, whether we perform it or you retain your own contractor, affects total project cost. Second-story and above-grade openings require additional equipment and labor.
To avoid overpaying, obtain a written quote that specifies manufacturer, series, and performance values, not generic descriptions. Compare quotes on identical specifications; a lower price for undefined “vinyl replacement” often indicates thinner frame walls, lower design pressure rating, or omission of permit and inspection costs. Our free estimate includes the measured survey you keep, the written specification, and a fixed price. We also offer a free second opinion on any written estimate from another contractor; bring us their quote and we will review it at no charge, identifying specification differences and pricing anomalies.
What’s included in our free estimate: travel to your Lantana property, measured survey of all openings you wish to discuss, condition documentation with photographs, written quote with manufacturer specification and fixed price, and our review of any competitor quote you provide. Call (561) 461-2062 to schedule; estimates are free and carry no obligation.
Window Replacement Near Lantana - Our Service Area

We install and replace windows throughout Lantana and adjacent Palm Beach County communities, typically scheduling surveys within two business days of contact and installation within 2-4 weeks of quote acceptance. Our service area includes Window Replacement in Lake Worth to the north, Window Replacement in Boynton Beach to the south, and extends to Palm Springs, Greenacres, Palm Beach, Westgate, Delray Beach, West Palm Beach, Royal Palm Beach, Wellington, and Boca Raton. Travel to outlying areas is included in the written quote; there are no mileage add-ons or zone surcharges. For properties in Lantana’s eastern neighborhoods near the Intracoastal, we coordinate survey timing with tide schedules when accessing waterfront elevations, documented in your appointment confirmation.
Serving Lantana, FL - Our Local Coverage Area
We’re based in the Lantana area and know this community well, and we also provide Window Replacement in Greenacres. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Window Replacement in Lantana

Window replacement is the removal of an existing window unit and installation of a new unit, either as an insert within the existing frame or as a full frame replacement down to the rough opening. At Sightline Windows & Doors Lantana, we perform both methods under the Haven Standard, with the measured survey determining which approach is appropriate for each opening. The specification, manufacturer, and fixed price are written before any work starts. Call (561) 461-2062 to schedule your free estimate.
A typical single-opening replacement takes 2-4 hours; a whole-home project of 10-15 openings is usually completed in 1-2 days depending on configuration complexity and any structural repair required. Full frame replacements take longer per opening than insert replacements because of trim removal, rough opening preparation, and finish work. We specify the expected duration in your written quote and schedule consecutive days for whole-home projects to minimize disruption. Call (561) 461-2062 for a timeline based on your specific openings.
Window replacement in Lantana typically costs $650-$2,400 per opening depending on method (insert or full frame), frame material, glazing specification, and size. A standard vinyl insert replacement runs $650-$950; impact-rated full frame units range $1,400-$2,400. Every quote from Sightline Windows & Doors Lantana names the specific manufacturer, series, and performance values with a fixed price that does not change. Call (561) 461-2062 for your written estimate; estimates are free.
Yes, we service and install CWS and ECO Window Systems among our eight verified manufacturer lines, and we maintain direct technical support and warranty claim access for both. CWS multi-chambered vinyl frames are our standard specification for wind-borne debris regions; ECO Window Systems provides thermally efficient configurations where U-factor and SHGC performance are prioritized. Whether you need replacement of existing CWS or ECO units or are considering them for new installation, we specify by opening requirement, not by stock availability. Call (561) 461-2062 to discuss your project.
We do not offer same-day installation for planned replacement projects, which require measured survey, specification, and manufacturer ordering. For broken glass or compromised security, we can often provide temporary board-up or film stabilization within hours through our 24/7 live phone coverage, with permanent replacement scheduled through the standard Haven process. True emergencies involving structural damage from storm or impact receive priority scheduling once temporary stabilization is complete. Call (561) 461-2062 at any hour to discuss your situation.
Every window replacement carries the full manufacturer warranty on products plus our 365-Day Done Right Promise on workmanship, both written into the Haven Standard. The manufacturer warranty varies by brand and series, typically 10-20 years on vinyl frames and 20 years to lifetime on insulated glass units; we provide the specific warranty document with your quote. Our 365-Day Done Right Promise means if any aspect of our installation is not done right, we make it right at no additional cost. This is Haven Clause 5, not a verbal courtesy. Call (561) 461-2062 for warranty details on any specific product line.
Clear furniture and wall decorations from the work area, remove window treatments you wish to preserve, and ensure access to the exterior for scaffolding or ladders if required for second-story openings. We protect floors and adjacent surfaces as part of standard work; you do not need to move heavy furniture we can work around. For full frame replacements, expect some interior trim disturbance; we specify in the quote whether we or your finish contractor will address painting and trim restoration. Pets should be secured away from work areas. Call (561) 461-2062 to schedule your survey and receive a preparation checklist specific to your project scope.
Schedule Your Window Replacement Service in Lantana Today
Call (561) 461-2062 to schedule your free measured survey and written estimate. You’ll receive a documented photo record of existing conditions, a specification naming manufacturer and performance values, and a fixed price that does not change. Our live phone coverage is available 24/7; your call is answered by a person, not a queue. The Haven Standard governs every installation we’ve completed since 2012, and the 365-Day Done Right Promise covers every opening we touch.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Lantana since 2012.










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