New windows and doors improve comfort, cut energy bills and add long-term value to your home. Sightline Windows & Doors North Miami pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
1. 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.
2. 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.
3. 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
Therma-Tru Impact Windows & Doors in North Miami: What to Know First
We provide independent Therma-Tru impact windows and doors service in North Miami, typically scheduling a measured survey within 48 hours and delivering a written quote that same visit. Most Therma-Tru impact window and door repairs run $340-$780; full replacements with new impact-rated units generally fall between $1,800 and $4,200 per opening, depending on series and glazing specification. We are not affiliated with or authorized by Therma-Tru - we are an independent Therma-Tru service provider - and we carry eight manufacturer lines so we can specify what the opening actually needs rather than what we happen to stock.
This page is for North Miami homeowners who already have Therma-Tru products and need impact-rated performance restored or upgraded: stuck horizontal rollers on a Classic-Craft patio door, seal failure in a Pulse series fixed window, or a full replacement of a non-impact Therma-Tru unit with a Miami-Dade NOA-approved impact equivalent. If you are comparing written estimates or need a second opinion on another contractor’s scope, call (786) 706-0468. Our second-opinion review is free.
How Therma-Tru Products Fail - and How We Fix Them

- Pulse series aluminum-clad windows: thermal break separation at the sill. The aluminum exterior and wood interior expand at different rates through North Miami’s wet season, and after six to ten years the polyamide thermal break can delaminate. We see this most in east-facing units near Biscayne Bay where salt accelerates the cycle. We remove the sash, assess whether the break can be re-bonded with structural epoxy or if the sash requires replacement, and we document the frame deflection with a digital readout so you have the measurement in writing.
- Classic-Craft and Smooth-Star fiberglass entry doors: impact lite seal degradation. The decorative glass inserts in these doors use a dual-seal system that softens under sustained UV exposure. North Miami’s latitude delivers more annual solar radiation than nearly any mainland U.S. city, and we regularly find the inner butyl seal compromised while the outer silicone appears intact. We source OEM lite replacement kits when available, or fabricate a custom impact-rated lite package with Miami-Dade NOA documentation if the original SKU is discontinued.
- Benchmark and Traditions steel door frames: jamb rot behind the brickmould. Steel doors do not rot, but the untreated wood jamb behind the vinyl-clad brickmould does, particularly where sprinkler systems hit the same spot every morning. We strip the trim, treat or replace the jamb, and reinstall with a sloped sill pan and back-seal that diverts water to the exterior. We have replaced more jambs than doors on these units in North Miami.
- Horizon series horizontal rollers: wheel carriage fatigue in impact-rated sashes. The stainless steel tandem rollers on heavier impact-laminated sashes carry 40-60% more load than standard glazing, and the polymer carriage cracks after repeated cycling. We upgrade to a brass-body roller with a higher dynamic load rating, which costs more than the OEM polymer part but outlasts it by years in salt-air conditions.
- Impact-rated sidelites and transoms: interlayer haze after delamination. The PVB or SentryGlas interlayer in impact glazing can separate from the glass lite at the edge, creating a milky band that spreads inward. This is not a cleaning issue; it is a structural failure of the laminated package. We measure the visible glass and order a replacement insulated laminated unit (ILU) with the correct interlayer thickness for your wind-borne debris zone, pulling permits under the Miami-Dade product control system.
Before
AfterOur Therma-Tru Impact Windows & Doors Process
- 1
Measured survey. We arrive with a laser measure, a moisture meter, and a camera. You keep the written field notes; we keep a copy. Sonia Raman trained in building construction technology at Miami Dade College, where she picked up the habit of checking every rough opening twice before touching a shim. We still do.
- 2
Diagnosis with documentation. We photograph the failure, record frame squareness and sill level, and note any structural settling or water intrusion. You receive these photos with the written scope.
- 3
Parts specification: OEM or verified equivalent. We check Therma-Tru parts availability first. If a component is discontinued or back-ordered beyond reasonable lead time, we source a quality aftermarket or alternate-manufacturer part with equivalent Miami-Dade NOA performance data. We explain the trade-off in writing before you decide.
- 4
Written price, fixed. Haven Clause 1: the quote matches the measured survey exactly. No change orders for conditions we should have seen.
- 5
Installation by verified crew. Haven Clause 3: background-checked, uniformed technicians with license numbers provided before arrival. They install to manufacturer spec and local amendment, seal with approved fasteners and sealants, and test operation before cleanup.
- 6
Photo record and 365-Day Done Right Promise. Haven Clause 4: documented evidence of the completed work. Haven Clause 5: if it is not done right, we make it right. The promise is stamped on every job, not offered as a courtesy.
What Therma-Tru Impact Windows & Doors Costs in North Miami

| Scenario | Typical Range | What Moves the Price |
|---|---|---|
| Pulse or Horizon series sash repair (roller, lock, balance) | $340-$580 | Impact-rated vs. standard glazing weight; OEM part availability |
| Classic-Craft or Smooth-Star impact lite replacement | $680-$1,400 | Lite size, decorative glass pattern, Miami-Dade NOA tier |
| Benchmark/Traditions steel door jamb rebuild | $890-$1,650 | Extent of rot, trim replacement, sill pan fabrication |
| Single opening: Therma-Tru impact window replacement | $1,800-$3,200 | Series, size, glazing package, permit/inspection requirements |
| Single opening: Therma-Tru impact door replacement | $2,400-$4,200 | Pre-hung vs. slab, sidelite configuration, hardware grade |
Prices include permits pulled and inspections passed where required. We do not quote over the phone for replacement work; the measured survey is the quote. Call (786) 706-0468 to schedule your free estimate.
Why North Miami Homeowners Call Sightline Windows & Doors North Miami for Therma-Tru Work
We have worked the Biscayne corridor near the North Miami Public Library long enough to know how aging aluminum frames behave in this specific climate. That experience informs every Therma-Tru diagnosis we make.
The 365-Day Done Right Promise is written into the Haven Standard, not a verbal assurance. Our technicians are verified under Haven Clause 3. Calls are answered by a live person, 24/7. And because we specify across eight manufacturer lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux - we can recommend a Therma-Tru solution when it fits the opening, or an alternate when another line performs better for the price.
We have installed more than 18,000 windows and doors since 2012. Every one had a written price before work started and a documented photo record when it finished. Measure once, document everything, explain the rest in plain English.
FAQs

It depends on what failed and when. Therma-Tru’s limited warranty covers manufacturing defects for specified periods, but it does not cover field modifications, improper installation, or damage from impact events. Our repairs use OEM or equivalent parts installed to manufacturer spec, and we document the work so any future warranty claim has a clear service history. If your unit is still within the original warranty window, we flag this before touching the product. Call (786) 706-0468 and we will review your warranty status at no charge.
OEM parts from Therma-Tru typically arrive in 5-10 business days for current-series components. Discontinued lines - certain Horizon configurations, for example - may require 2-3 weeks for custom fabrication or aftermarket sourcing. We tell you the lead time in writing before you commit, and we maintain relationships with alternate manufacturers so we are not waiting on a single supply chain. For urgent weathertight failures, we can often install a temporary impact-rated board-up while parts are in transit.
Repair when the frame is square, the glazing is intact, and the failure is isolated to a component: roller, lock, balance, or lite seal. Replace when the frame has deflected more than 1/8 inch from square, the insulated laminated unit has failed, or the product is pre-2010 and predates current Miami-Dade impact standards. We measure and photograph, then give you both options in writing with a 10-year cost projection. Call (786) 706-0468 for a free estimate.
Therma-Tru maintains color formulations for current fiberglass and steel finishes, and we can order factory-matched components for most Classic-Craft, Smooth-Star, and Pulse series products. For discontinued colors or custom site-applied finishes, we provide a physical sample for your approval before ordering. We do not guess at color matches; the sample is part of the written scope you approve.
Yes. Any impact-rated window or door replacement in North Miami requires a Miami-Dade County building permit and passing inspection. We pull the permit, schedule inspections, and correct any deficiencies at our cost. The permit number and inspection results are included in your job documentation. This is standard under the Haven Standard, not an add-on. Call (786) 706-0468 to schedule your free estimate.
Written by Sonia Raman, Owner, Sightline Windows & Doors North Miami at Sightline Windows & Doors North Miami, serving North Miami and nearby areas.
Six Reasons Homeowners Choose Sightline Windows & Doors North 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.
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