Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Energy-Efficient Windows Across Dunedin
Energy-efficient window replacement in Dunedin typically runs $850-$1,900 per opening installed, depending on frame material, glass package, and whether the opening requires impact-rated glazing under Florida Building Code. Most Dunedin homes built before 1970 still carry original jalousie or single-pane aluminum frames, which means a large share of our work here is both an energy upgrade and a wind-load compliance fix. We know the street-grid neighborhoods, the salt-air corrosion patterns, and the permit requirements that apply along Edgewater Drive and the Pinellas Trail corridor. Call (813) 320-9346 for a written, line-item quote that accounts for your specific lot, your specific windows, and your specific insurance picture before anyone sets foot on your property.
Why TruePane Windows & Doors Is Dunedin’s Preferred Energy-Efficient Windows Company
Dunedin homeowners tend to notice details. They notice when a crew stages materials without blocking a neighbor’s driveway on a tight lot off Patricia Avenue. They notice when a contractor pulls a permit without being reminded. And they remember the company that answered the phone with a live person at 7 a.m. when a fogged jalousie finally gave up. We have built our reputation in Dunedin around those details, and around a practice that Dale Kessler set down in 2008: if the pane is not true, the job is not done. That standard applies to every energy-efficient window we set in Dunedin, from a single replacement sash near Dunedin High School to a whole-house retrofit along Bayshore Boulevard.
Our crews work on Dunedin’s post-war concrete block homes week in and week out. We understand the difference between a 1940s CBS bungalow with original steel lintels and a 1980s frame addition with different rough-opening dimensions. We register both manufacturer warranty layers in writing before we leave the driveway, and we back the workmanship with a 90-Day Done Right Promise that doesn’t involve a paperwork fight. When a Dunedin customer calls about a seal failure three months after install, we send a uniformed technician and we fix it.
Our Energy-Efficient Windows Services in Dunedin
Every window we install in Dunedin starts with a conversation about the site, not a catalog page. Here’s what that looks like across the services Dunedin homeowners request most.
Low-E & Argon Gas Glass
Low-E coatings reduce radiant heat transfer, and argon gas between panes slows conductive loss. In Dunedin, where west-facing elevations bake every afternoon from spring through October, a low-E double-pane unit with argon fill cuts the heat load a family feels in a living room by a measurable margin. We quote the glass package separately on every proposal so you see exactly what the coating and gas fill add to the unit cost, typically $40-$90 per window over a standard clear double-pane. That line item pays for itself in the first full cooling season on a Dunedin home with single-pane originals.

ENERGY STAR Replacement Windows
ENERGY STAR certification matters in Florida’s Southern climate zone because it sets a floor for solar heat gain coefficient and U-factor performance. A typical ENERGY STAR replacement window for a Dunedin CBS home runs $900-$1,700 installed when you’re staying within an existing opening and not changing the framing. If the opening needs resizing, or if we’re pulling a jalousie and reframing for a casement, expect $1,300-$2,400. We’ll put the specific model numbers and performance ratings on paper so you can compare them side by side before you spend a dollar.

Double & Triple Pane Windows
Double-pane units with argon fill are the workhorse of Dunedin window replacement. Triple-pane units add a third glass layer and a second insulating cavity, which helps with sound attenuation and marginal thermal gains, but the added weight and cost, typically $150-$350 more per opening, only makes sense on certain elevations or if you’re trying to quiet traffic noise from Belcher Road or the Causeway. We’ll tell you plainly when a triple-pane unit is throwing money at a problem a double-pane solves, because a square deal means saying no to an upsell that doesn’t serve you.

UV-Blocking & Fade Protection
Salt air isn’t the only thing punishing Dunedin interiors. Direct Gulf sun pours through east-facing rooms every morning and west-facing rooms every afternoon, and UV exposure fades flooring, furniture, and woodwork faster than most homeowners expect. A low-E coating with a strong UV-blocking layer cuts ultraviolet transmission dramatically, and for homes along the water, we often pair that with a tinted laminate option that also meets impact-rating requirements. The result is a window that protects both the fabric of your house and the fabric on your sofa.

What happens when you call
- 1
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.
Trusted Brands We Service in Dunedin
TruePane is an authorized installer for more than a dozen manufacturer lines, and in Dunedin we most often quote Andersen, ES Windows, and ECO Window Systems because those lines hold up in coastal exposure and offer glazing packages that meet Florida’s Wind-Borne Debris Region requirements without forcing you into a commercial look. We quote manufacturer lines side by side on paper so you can compare frame warranties, glass warranties, and lead times. Local stock for common Dunedin project profiles keeps most replacements moving without a factory wait.
Common Energy-Efficient Windows Problems We See in Dunedin Homes
- Salt-air corrosion on aluminum frames. Persistent salt-laden air off St. Joseph Sound eats through aluminum frames, hardware, and threshold pans, especially on west- and northwest-facing elevations. A window that looks tired after three years here may have thirty years of life left in a non-coastal rating, which is why we specify coastal-rated hardware on every Dunedin install.
- Jalousie louvers with silicone caulk and failed seals. Most original jalousie windows in Dunedin have been caulked repeatedly, and once humid Gulf air gets between the louvers, the insulation value is gone and condensation starts. Argon loss and seal failure in these units is common, and we replace them with properly sealed insulated glass units rather than chasing another caulk repair.
- Single-pane aluminum frames that fail wind-mitigation inspection. Homeowners doing a Citizens Property Insurance wind mitigation inspection often hear that original single-pane aluminum windows won’t pass code for wind load. That’s not a cosmetic problem. It’s an insurance premium problem, and it’s one of the reasons the energy-efficient window conversation in Dunedin almost always includes impact-rated glazing.
- Tight lot staging that damages neighbor property. Dunedin’s grid streets and compact lots leave no room for a sprawling trailer setup. Crews that park wrong, block aprons, or drag materials across a neighbor’s plantings earn a bad name fast. We stage deliberately, protect adjacent surfaces with plywood, and schedule work within the city’s noise ordinances.
Pricing for Energy-Efficient Windows in Dunedin, FL
Here’s what Dunedin homeowners can expect on a written quote. A standard low-E argon-filled double-hung replacement in an existing opening of a typical CBS home runs $850-$1,300. A casement or picture window runs $1,100-$1,900. A full jalousie-to-double-hung retrofit with reframing and impact-rated glazing runs $1,600-$2,600 per opening because it involves structural work and code review. Vinyl frames land at the lower end of those ranges; composite or aluminum-clad frames land at the higher end. Lot access matters too. A tight lot behind a historic district review, or a site where the truck has to park a block away, adds a modest staging charge we disclose before work starts, never after. Call (813) 320-9346 for a free estimate with fixed line-item pricing and no change orders.
We Also Serve Cities Near Dunedin
Our crews work throughout northern Pinellas County, and this same approach applies to energy-efficient windows in Pinellas Park, Largo, Seminole, and Bay Pines. If you’re just outside Dunedin, the climate and code requirements are similar, which means the pricing and permitting conversation is familiar ground. Ask us about coverage in your specific neighborhood when you call.
Serving Dunedin, FL - Our Local Coverage Area
We’re based in the Dunedin area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Energy-Efficient Windows in Dunedin
If your home sits anywhere in Dunedin, yes, you need impact-rated or approved-opening-protected windows on any replacement that falls under Florida Building Code’s Wind-Borne Debris Region requirements. The entire city sits inside that region because of its position on St. Joseph Sound, one barrier island from the Gulf of Mexico. That doesn’t mean every window must be a heavy impact unit; code allows some openings to use shutters or other approved protection, but replacement windows themselves generally must carry an impact rating or a design pressure certification. We’ll walk through your specific openings and tell you which exception applies, if any, before you buy a single unit. Call (813) 320-9346 for a straight answer about your house.
Living near the Sound means salt-laden air hits your windows roughly 365 days a year, which shortens the life of aluminum frames, threshold pans, and unsealed hardware dramatically. Coastal-rated hardware and properly sealed frame corners aren’t optional here; they’re the difference between a window that lasts twenty years and one that starts corroding in seven. The proximity to open water also raises your wind-load exposure, which is why impact-rated energy-efficient glazing pairs naturally with the insulation performance you want. We spec hardware and frame materials for coastal exposure on every Dunedin project, not just the ones in sight of the water.
Fogging between jalousie louvers means the seal between the glass panes has failed, letting humid Gulf air in and letting argon gas, if any was ever present, leak out. Once that happens, the window’s insulation value is gone and no amount of surface cleaning fixes it. Most original Dunedin jalousies have also been caulked with silicone around the louvers, which traps additional moisture against the frame. These units don’t get repaired; they get replaced with properly sealed, energy-efficient insulated glass units rated for coastal humidity. That’s the honest answer, and it’s usually cheaper over five years than chasing recurring fog with caulk and prayer.
Yes, and in Dunedin the savings are often larger than in most inland Pinellas cities because nearly every home falls inside the Wind-Borne Debris Region and the insurance carriers price that exposure aggressively. The path is a wind mitigation inspection after installation, which documents that your openings now meet current wind-load standards. That inspection is what unlocks premium credits or reduced deductibles with carriers like Citizens Property Insurance. Homeowners have reported meaningful annual savings after a full impact-window retrofit paired with a completed wind-mitigation report. We’ll tell you to expect savings based on your specific carrier and policy, and we won’t invent a number that isn’t on your paperwork.
Yes, you can, but Dunedin’s historic and overlay districts add a review step before installation. The city’s code review looks at exterior appearance changes, which means some streets require approval before you swap a jalousie for a double-hung or casement. We’ve handled that process on homes near Edgewater Drive and the downtown-adjacent grid, and we’ll file or coordinate the paperwork as part of the job. The replacement itself is straightforward on most 1940s-1960s CBS homes, since the rough openings are regular enough to accept standard frame dimensions. What matters is that the review happens before the order, never after, so you’re not sitting with windows that can’t be installed.
If you’re ready to stop looking at fogged louvers and start cooling your house the way it should have been all along, call (813) 320-9346. We’ll schedule a free estimate, measure every opening twice, and put the quote in writing with fixed pricing, stated warranty durations, and both manufacturer warranty layers registered before we leave the driveway. Dale Kessler’s rule hasn’t changed in years: if the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Dunedin with energy-efficient window replacement, impact-rated glazing, and coastal-spec installation.
Six Reasons Homeowners Choose TruePane Windows & Doors
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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