Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Dunedin
Window replacement in Dunedin, FL rarely means simply swapping glass. It usually means pulling a corroded jalousie or single-pane aluminum frame out of a 1950s concrete block wall, discovering what the salt air has been doing behind it for sixty years, and then bringing the opening up to Florida Building Code wind-load standards before the new unit goes in. That is the job we do every week in this city. TruePane Windows & Doors handles the full sequence: inspection, honest assessment, written allowances for the code work, and replacement that holds up against St. Joseph Sound. If you are looking at fogged glass, frames that stick, or a wind-mitigation inspection that did not go your way, call (813) 320-9346 and we will send a background-checked technician to your home in Dunedin for a free estimate.
Why TruePane Windows & Doors Is Dunedin’s Preferred Window Replacement Company
Dunedin homeowners tend to be careful with contractors. Many have lived here twenty, thirty, forty years and have already paid once for a window that fogged or a door that binds in July. That history shapes the way we work. We quote manufacturer lines side by side on paper so you can see exactly what you are buying. We pull permits when the job requires them. We register both warranty layers in writing before the truck leaves your driveway. No paperwork fights later. No callbacks that turn into arguments.
Our crews work the street-grid neighborhoods near the Pinellas Trail, the blocks off Edgewater Drive, and the older subdivisions around downtown Dunedin. We know what a failed flashing tape looks like behind stucco on a 1960s CBS ranch because we have opened enough of them. We also know what Dunedin’s building department will require when a jalousie-to-double-hung swap triggers the Wind-Borne Debris Region code path. That local knowledge is part of why our Window Replacement customers in this city tend to call us back for the next opening, and the one after that. Dale Kessler founded this company on a rule that names it: if the pane is not true, the job is not done. That rule governs every install we do in Dunedin.
Our Window Replacement Services in Dunedin
Full Frame Replacement
Most of the work we do in Dunedin is full frame replacement, and there is a reason. Pulling the entire old window, frame and all, is the only way to see what the salt air has done to the rough opening. On older concrete block homes near the water, we regularly find rotted wood bucks, corroded fasteners, and flashing that stopped being flashing years ago. Full frame replacement in Dunedin lets us rebuild the opening correctly, install a properly anchored impact-rated unit, and seal it so St. Joseph Sound stays outside where it belongs. A typical full frame replacement on a 1950s-1960s Dunedin home runs $900 to $2,400 per opening depending on size, material, and the condition of the opening once we inspect it.

Insert Window Replacement
If the existing frame is square, dry, and structurally sound, an insert replacement can be the right call. We fit a new energy-efficient sash unit into the existing opening without disturbing your interior trim or stucco. But we are honest about when an insert is not the right call in Dunedin. Inserting over a corroded aluminum frame that is already leaking traps salt moisture inside the wall and accelerates the rot you cannot see. We measure every opening twice, and if the frame cannot hold, we will tell you before we order a single unit.

Storm and Impact Window Replacement
Because Dunedin sits entirely inside Florida’s Wind-Borne Debris Region, storm window replacement here is not an optional add-on. It is a code requirement on most replacement projects. Impact-rated glazing must be matched to the opening correctly. Ordering a panel that does not fit the rough opening and then modifying the frame on-site voids the manufacturer’s wind-load rating. That mistake shows up later in a wind-mitigation inspection, and the homeowner is the one who eats it. We order the correct unit for the opening the first time, and we register the manufacturer warranty for that unit before we leave. Impact window replacement in Dunedin generally runs $1,100 to $2,800 per opening, with the wider spread reflecting size and whether the installation triggers additional frame work.

Energy-Efficient Window Replacement
For Dunedin’s older concrete block homes, energy-efficient window replacement usually means moving from single-pane aluminum or jalousie louvers to insulated, low-E, double-pane units with tight seals. The cooling-load difference in a west-facing bedroom in August is substantial. Homeowners upgrading original windows on a CBS ranch near the water commonly report lower summer cooling bills and quieter rooms, especially on streets close to the Pinellas Trail or the marina. Expect to pay $800 to $1,900 per opening for a standard energy-efficient double-hung or casement in Dunedin, before any impact-rating or code-triggered upgrades.

Historic Window Restoration
Dunedin has a stock of older bungalows and early-20th-century homes, particularly around the downtown historic district, where the original window architecture matters to the homeowner and to the neighborhood. We do not rip those out unless the structure requires it. Where restoration is possible, we rebuild sashes, replace rotted wood, reweight or convert to modern balance systems, and reglaze. Where the window has failed beyond repair, we supply replacement units that match the original sightlines and muntin patterns. Restoration pricing in Dunedin starts around $600 per sash and moves up based on wood rot, glazing condition, and hardware. Dale Kessler is a glazier by trade. He would rather rebuild a true divided-light window than order a lookalike.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Dunedin
TruePane Windows & Doors is an authorized installer for more than a dozen manufacturer lines, including Andersen, Pella, Marvin, Milgard, PGT, CGI, and ES Windows. For Dunedin customers, we commonly quote Andersen, Pella, and Marvin side by side on paper so you can compare performance, warranty, and price before committing. We also stock replacement parts and common hardware for local homes, which means a repair on a Marvin or Andersen unit in Dunedin does not wait on a slow parts shipment. If the unit in your home has a warranty question, we handle the claim filing for you. You get the work done right, and you get a square deal on paper.
Common Window Replacement Problems We See in Dunedin Homes
Opening up an older Dunedin home usually turns up more than the original window. These are the four most common problems we find, and how we handle each.
- Impact-rated glazing ordered without matching the rough opening. A competitor quotes a unit based on the visible frame, not the actual rough opening. When it does not fit, the crew modifies the frame on-site and silently voids the wind-load rating. We measure the opening twice and order the unit that fits, not the one that was easiest to quote.
- Insert replacement over a corroded aluminum frame that still leaks. The original aluminum frame on a 1960s CBS home near St. Joseph Sound is often corroded at the corners and along the sill pan. Sliding an insert into that frame traps salt moisture inside the wall. We will not do it. If the frame cannot hold, we tell you before we quote the job.
- Ignoring the Wind-Borne Debris Region trigger during a jalousie swap. Dunedin homeowners sometimes replace original jalousies with standard double-hungs because the price is lower. Then the wind-mitigation inspection fails, and the insurance premium reduction never comes. Any window replacement in Dunedin follows the Florida Building Code impact-rated or approved-opening path. We pull the permit and the inspection passes, because we did the opening correctly in the first place.
- Original jalousie windows repaired with silicone caulk for decades. Walk the blocks near Edgewater Drive and the marina and you will see louvered glass sealed over and over again with silicone. It is a red flag in Citizens Property Insurance wind-mitigation inspections, and it can trigger coverage conditions. When we find that, the right repair is usually full frame replacement with an impact-rated unit, not another bead of caulk.
Pricing for Window Replacement in Dunedin, FL
Window replacement in Dunedin, FL, pricing breaks down into a few honest ranges. Full frame replacement on a 1950s-1960s concrete block home typically lands between $900 and $2,400 per opening. Impact-rated units run $1,100 to $2,800. Energy-efficient double-pane replacement without the impact rating runs $800 to $1,900. Historic sash restoration starts around $600 per sash and moves up with wood rot and hardware work. What moves a quote is opening condition, size, code-triggered upgrades, and the line you choose. We write allowances for the code work into the contract before we start, and any surprise is priced and approved in writing before our crew touches the opening. You will see every line item. Call (813) 320-9346 and we will send a technician to Dunedin to give you a written estimate.
We Also Serve Cities Near Dunedin
TruePane Windows & Doors serves Window Replacement in Dunedin and the surrounding Pinellas County communities. We regularly work in Pinellas Park, Largo, Seminole, and Bay Pines. Coastal salt air and aging CBS construction do not stop at the city line, and neither do our crews. If you are in one of those cities and need the same honest assessment and written pricing we give Dunedin homeowners, call the same number: (813) 320-9346.
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 - Window Replacement in Dunedin
Yes. Because Dunedin sits entirely within Florida’s Wind-Borne Debris Region, any window replacement in the city triggers the Florida Building Code requirement for impact-rated glazing or an approved opening-protection system. That means a standard, non-impact replacement unit will not pass a permit inspection, and it will not earn the wind-mitigation insurance reduction most Dunedin homeowners are after. There are approved alternatives, like removable shutters, but for most single-family homes the practical answer is an impact-rated unit. Call (813) 320-9346 and we will quote the compliant option for your opening.
The signs on a Dunedin-era CBS home are specific: condensation or fog between panes on sealed units, corroded aluminum frames with white chalky powder or pitting, jalousie louvers that no longer close tightly or have been silicone-caulked repeatedly, and sashes that bind in the summer because moisture has swelled the wood or corroded the track. Any of those is a sign the window has been failing for years, not months. The earlier we open the wall, the less damage we typically find behind the stucco.
Replacing a window in an older Dunedin home typically triggers three paths: the impact-glazing requirement under the Wind-Borne Debris Region provisions, installation of proper flashing and a water-resistive barrier at the opening, and in some cases, framing corrections if the existing rough opening is out of square or undersized. We write allowances for these code-triggered upgrades into the contract before we start, and any surprise discovered during the job is priced and approved in writing before our crew touches the opening. You will not get a change order you did not approve.
Replacing individual louvered glass panels is possible as a temporary repair, but it will not bring a Dunedin home into code compliance. Jalousie windows are not impact-rated, and they leak air and water by design. If you have original jalousies that have been silicone-caulked for decades, a glass-only swap leaves you with the same failed frame and the same wind-mitigation problem. The correct repair for a marine-exposure home is usually full frame replacement with an impact-rated unit. We will tell you which path applies to your opening before you pay.
On a west-facing or northwest-facing Dunedin home, yes. Single-pane aluminum frames conduct heat directly and leak conditioned air at the tracks. Replacing them with properly sealed, low-E, double-pane units cuts the direct solar gain and the air exchange, which reduces the load on the air conditioner during the months when the afternoon sun sits low over St. Joseph Sound. The savings show up fastest on homes with rooms that face the water, the marina, or open western exposure. For the specific numbers on your home, call (813) 320-9346, and we will quote the right glass package with an honest estimate of what it will do for your cooling load. Estimates are free.
For a written, itemized estimate on full frame, insert, storm, or energy-efficient window replacement in Dunedin, call TruePane Windows & Doors at (813) 320-9346. We will measure every opening twice, show you manufacturer lines side by side on paper, and register both warranty layers before the truck leaves your driveway. A live person answers the phone day or night. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Dunedin, FL.
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.



Before
After
Before
After
Before
After