Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Therma-Tru Custom & Geometric Windows in Hollywood: What to Know First
As an independent Therma-Tru service provider in Hollywood, we measure, order, and install custom and geometric windows from Therma-Tru’s current and legacy lines, with most custom jobs running four to six weeks from signed scope to installation. Our written quote names your price before any work starts, and that document matches the final invoice line for line. This page is for Hollywood homeowners who already own Therma-Tru products and need arched, curved, oversized, or otherwise non-rectangular openings addressed correctly the first time. Call (754) 714-7309 to schedule your measured survey.
How Therma-Tru Products Fail - and How We Fix Them
- Classic-Craft arched top lights develop seal creep in Hollywood’s salt-air cycle. The curved sash profile in the Classic-Craft line uses a dual-seal design that works well inland, but the thermal expansion differential between the fiberglass frame and the insulated glass unit accelerates seal degradation within three to five miles of the coast. We replace with OEM-spec glass built to a higher desiccant charge and use a back-bedding sealant rated for South Florida’s UV load, not the standard Midwest spec.
- Smooth-Star geometric windows show corner delamination at the mitered fiberglass joints. The Smooth-Star line’s pultruded fiberglass construction is excellent for energy performance, but the adhesive bond at compound miters in octagonal and hexagonal units can fail when seasonal humidity swings exceed 30 percent, which happens twice yearly in Hollywood. We disassemble the affected corner, re-glue with structural polyurethane, and clamp-cure for 24 hours before re-glazing, rather than injecting filler that cracks in the next cycle.
- Impact-rated custom units from the Therma-Tru Doors & Windows division lose their laminated interlayer adhesion. The SentryGlass interlayer in impact-rated geometric windows can cloud at the edges when installation tolerances allow water to pool in the sill track, a common issue in Hollywood’s afternoon deluge pattern. We verify the weep-hole pathway is clear and pitched correctly, then replace the glass with a unit built to the updated ASTM E1996 large-missile spec that Therma-Tru adopted in 2019.
- Oversized fixed picture windows in the Fiber-Classic line sag at the center stile. Fiberglass has low thermal expansion but it does creep under sustained load, and Fiber-Classic units over 72 inches wide without a mullion can develop a visible bow that strains the glazing bead. We reinforce with a concealed steel stiffener or split the opening with a matching custom mullion, depending on what the homeowner’s sightline preference allows.
- Legacy Therma-Tru vinyl custom shapes from pre-2015 acquisitions suffer weld-line cracking. Therma-Tru’s earlier vinyl geometries used a two-point fusion weld that becomes brittle after a decade of Hollywood’s UV exposure. We do not attempt field welding, which voids any remaining warranty coverage and fails within two years. Instead, we source a replacement sash from Therma-Tru’s current vinyl extrusion program or, if the line is discontinued, fabricate a matching profile from our PGT or CWS catalog with adapter trim.
Our Therma-Tru Custom & Geometric Windows Process

- 1
Measured survey. Sonia Raman or a verified crew member arrives with a printed license number, measures the rough opening to 1/16 inch, and records frame square, sill level, and wall plumb. You keep this document.
- 2
Spec sheet cross-check. We pull the Therma-Tru OEM drawing for your series and compare it against actual field dimensions, not the original blueprint. Measure the opening, not your optimism.
- 3
Parts decision. OEM glass and hardware when available and warranted; quality aftermarket when Therma-Tru has discontinued the line or when lead time exceeds your weather exposure risk. We document the choice in writing.
- 4
Fabrication oversight. For custom geometries, we review the shop drawing from the glass house before production begins, checking sightline symmetry and muntin alignment against your existing units.
- 5
Installation and testing. Crew installs per Therma-Tru’s published clearances, operates the sash through full travel, checks lock engagement, and verifies weep function with a measured water test.
- 6
Photo record and closeout. Documented photo record uploaded to your job file, written scope signed, 365-Day Done Right Promise activated.
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AfterWhat Therma-Tru Custom & Geometric Windows Costs in Hollywood
| Scenario | Typical Range |
|---|---|
| Classic-Craft arched top light, seal replacement only | $890 - $1,340 |
| Smooth-Star geometric corner repair (delamination) | $1,200 - $1,850 |
| Impact-rated custom geometric, full sash and glass replacement | $2,400 - $4,100 |
| Fiber-Classic oversized fixed, stiffener or mullion addition | $1,600 - $2,800 |
| Legacy vinyl custom shape, full replacement with adapter trim | $1,900 - $3,400 |
Price moves with glass spec (impact-rated vs. non-impact), accessibility (second-story geometric requiring scaffold), and whether the original Therma-Tru line remains in production. We do not quote until we measure. Call (754) 714-7309 for your written estimate, estimates are free.
Why Hollywood Homeowners Call Sightline Windows & Doors Hollywood for Therma-Tru Work

We are independently owned and operated under the Haven Standard, not a franchise, and every Therma-Tru job we have completed since 2012 carries the same written guarantees: the 365-Day Done Right Promise, the documented photo record, and the fixed price that matches the measured survey. Our crews are background-checked, uniformed, and identified by license number before arrival, per Haven Clause 3. We also specify from PGT, CGI, CWS, and ES Windows when a Therma-Tru line is discontinued or when a different performance tier fits the opening better. Eight manufacturer lines, chosen by what the opening requires, not by what is in stock.
FAQs
It depends on what failed and when. Therma-Tru’s limited lifetime warranty covers original defects in material and workmanship for the original purchaser, but it does not cover field modifications, glass breakage, or seal failure caused by installation error. As an independent Therma-Tru service provider, we document whether your issue falls under warranty terms before we quote any work, and we preserve your coverage by using warranty-safe practices rather than improvised fixes. Call (754) 714-7309 and we will review your warranty status at no charge.
Current Therma-Tru custom geometries run four to six weeks from approved shop drawing to delivery, with arched and curved profiles at the longer end of that range. Legacy lines that Therma-Tru has discontinued may require eight to twelve weeks if we are matching from archived extrusions, or we can cross-reference to PGT or CWS for a faster turnaround. We tell you the honest lead time in writing before you sign, not after.
Usually, yes, if the line is still in production. We pull the original color code, grid pattern, and sightline dimension from your intact unit and spec the replacement to match. For discontinued lines, we have matched profiles from our other manufacturer partners to within a 1/8-inch sightline variance, which we disclose in writing before you approve. The alternative is replacing the entire bank, which we quote separately so you can compare.
Repair when the frame is sound and the failure is isolated to glass, seal, or hardware, replacement when the frame shows structural fatigue, the geometry is out of square beyond shim correction, or repair costs exceed 60 percent of replacement. We give you both numbers in writing and let the math decide. Call (754) 714-7309 for a free second opinion on any other estimate you have received.
Yes, for any replacement that alters the rough opening, changes the egress configuration, or installs impact-rated product where non-impact existed before. Hollywood Building Department requires a permit for impact upgrades and any structural modification to the envelope. We pull the permit, schedule inspection, and pass it before final invoice. The permit cost is listed as a line item in your written quote, not buried in overhead.
Written by Sonia Raman, Owner, Sightline Windows & Doors Hollywood at Sightline Windows & Doors Hollywood, serving Hollywood and nearby areas.










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