Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Installation Across Mount Dora
Mount Dora Window Replacement almost always starts the same way: a homeowner stands at a window that won’t open, or that fogs between the panes, or that lets Lake Dora humidity soak the sill every summer, and they want a straight answer about what it costs and what happens next. We give straight answers. TruePane Windows & Doors has installed, replaced, and serviced windows across Mount Dora for years, and we know the difference between a pre-1950 cottage off Donnelly Street and a 1980s tract home off 441. Call (813) 320-9346 and a live person answers, 24 hours a day, 7 days a week. Not a voicemail tree. A person who can schedule your free estimate.
Why TruePane Windows & Doors Is Mount Dora’s Preferred Window Installation Company
Mount Dora homeowners tend to ask harder questions than most. Many have owned their houses for two decades or more. They remember the contractor who fogged a seal or left a door that binds in July, and they read the fine print now. We respect that. Dale Kessler founded this company in 2008 on a rule that still governs every job: if the pane is not true, the job is not done. There is no franchise playbook here. We are a second-generation glazier’s crew, background-checked and uniformed, and we measure every opening twice before we quote.
Our reputation in Mount Dora comes from the work itself. The 90-Day Done Right Promise means if it is not done right, we make it right, no paperwork and no arguing. The Keystone Standard means both manufacturer warranty layers are registered in writing, with durations stated, before the truck leaves the driveway. And when a Mount Dora homeowner calls with a question six months later, they reach a person who knows their house, not a regional call center.
Our Window Installation Services in Mount Dora
We install, replace, and service the full range of residential windows. Below are the four we see most often in Mount Dora homes, given the age and style of the housing stock around the lakes and along the historic corridors, including options for Viewlux service in Mount Dora.
Casement Windows
Casement windows are common in Mount Dora’s 1970s through 1990s homes, and many original units now have failing crank mechanisms and compressed weatherstripping from decades of humidity near Lake Dora and Lake Gertrude. In the Historic District, a casement replacement often requires a wood or aluminum profile that matches the original dimensions, not a standard vinyl unit. We scope that before we quote, not after you have paid a deposit.

Awning Windows
Awning windows work well in Mount Dora because they can be opened for ventilation even during a light rain, which matters in a climate where afternoon thunderstorms roll through from the lakes. On pre-1950 wood-frame cottages, the surrounding framing is often the bigger issue than the window itself. We inspect the jamb and sill before we write the estimate, so the price you see is the price you approve.

Fixed & Picture Windows
Fixed windows and picture windows in Mount Dora homes frequently face west toward the lakes, which means direct Florida sun and thermal stress on older glazing. Homeowners near the Donnelly Street corridor often ask whether a large picture window can be upgraded to Energy-Efficient Windows - Mount Dora with Low-E or argon-filled glass without changing the look of the house. In the Historic District, that question goes to the Preservation Board. We handle that paperwork.

Single & Double Hung
Single and double hung windows are what you find in most of Mount Dora’s Victorian and Craftsman-era homes, and the original wood sashes have typically swelled, rotted, or lost their glazing compound after decades of Florida humidity. Replacement in a designated historic home means matching the original double-hung profile, usually in aluminum-clad wood. Outside the district, we install a wider range of materials and glass packages, always with side-by-side manufacturer quotes on paper so you see exactly what you are buying.

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.
Trusted Brands We Service in Mount Dora
We are an authorized installer for more than a dozen manufacturer lines, including Andersen, Pella, Marvin, Milgard, PGT, and CGI. For Mount Dora customers, we also work regularly with Simonton, Ply Gem, and PGT Impact Windows & Doors - Mount Dora lines, which matter for hilltop and ridge-facing homes that get more direct wind exposure than the flat terrain around them. Because we service these brands locally, we stock common replacement parts and hardware for faster turnaround. No second appointment left hanging.
Common Window Installation Problems We See in Mount Dora Homes
Opening up an older Mount Dora home usually turns up more than the homeowner expected. Here is what we find most often, and how we handle it.
- Rotted jamb and sill framing behind original windows. On pre-1950 wood-frame cottages near the lakes, years of humidity and failed flashing have often rotted the wood around the opening. The new window cannot be properly shimmed or sealed until that structural repair is done. We write that repair into the estimate as a pre-approved allowance, not as a surprise change order after demolition.
- Historic Preservation Board stop-work orders. A contractor submits a standard vinyl window bid for a home in the designated Historic District, then discovers after deposit that the Preservation Board requires a certificate of appropriateness and wood or aluminum profiles matching original dimensions. The job stalls. The homeowner loses weeks, sometimes months. We submit the certificate before we order materials, and we flag the requirement in the first conversation.
- Galvanic corrosion on aluminum frames. Aluminum frames in Mount Dora’s 1970s and 1980s tract homes often develop corrosion at fastener points where the frame meets the wall, especially on homes set back from Lake Dora. The corrosion lets water intrude, and that water rots the subfloor near the sill. When we remove an old aluminum slider, we inspect the subfloor before we set the new unit.
- Failed flashing tape and hidden water intrusion. Even a straightforward replacement on a newer home can reveal flashing tape that was never lapped correctly, or has dried and cracked. Water has been getting behind the frame for years. We fix the flashing as part of the install, and we document it with photos before the trim goes back on. It is a square deal: you see what we see.
Pricing for Window Installation in Mount Dora, FL
Window installation in Mount Dora runs on different math than the tracts in Orlando or Ocala. A single standard replacement in a 1980s tract home typically runs $600 to $1,300 installed, depending on size and glass package. A wood or aluminum-clad double-hung unit that satisfies the Historic Preservation Board for a home near Donnelly Street or Old New England Avenue typically runs $1,400 to $3,200 per opening, because the unit is built to match original dimensions and the permit process adds review time. Casement windows in Mount Dora’s lake-facing homes run $800 to $1,800, with larger picture windows running from $1,200 to $4,500 when upgraded to impact-rated glazing. These are real ranges, not placeholders. Your free estimate gives you an exact number. Call (813) 320-9346.
What Moves a Mount Dora Window Quote
- Historic District status. A certificate of appropriateness adds review time and restricts material profiles. We build that into the schedule and the price from day one.
- Structural condition of the opening. Pre-1950 framing near the lakes is often rotted. If the jamb needs rebuilding, the repair is a line item you approve in writing before we touch it.
- Wind exposure on elevation. Hilltop and ridge-facing homes above 180 feet often require impact-rated glazing or upgraded fasteners. We quote that from the start.
Key Takeaways: Historic District homes need a certificate of appropriateness before window replacement. Pre-1950 homes often hide rotted framing behind the old window. We write allowances into the contract so surprises are priced and approved before we start. You will see manufacturer quotes side by side on paper, with both warranty layers registered before the truck leaves the driveway.
We Also Serve Cities Near Mount Dora
Our Window Installation team works throughout Lake County and the nearby hills, serving Mount Dora and the surrounding communities of Eustis, Tangerine, Tavares, and Sorrento. If you are in one of those towns, the same crew, the same pricing discipline, and the same 90-Day Done Right Promise apply. You can read more about our work specifically in this area on our Window Installation in Mount Dora page. Dispatch and scheduling are coordinated from our South FL office; crews serve Mount Dora locally.
Serving Mount Dora, FL - Our Local Coverage Area
We’re based in the Mount Dora 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 Installation in Mount Dora
Yes. If your home sits inside Mount Dora’s designated Historic District, concentrated along Donnelly Street and Old New England Avenue near the downtown lakefront, you need Historic Preservation Board review and a certificate of appropriateness before replacing exterior windows. The Board typically prohibits standard vinyl units and requires wood or aluminum profiles that match the original historic dimensions. We submit the certificate before we order materials, so the permit does not strand your job. Call (813) 320-9346 to find out if your address falls inside the district.
A bid jumps because the original quote did not account for what hides behind old trim: failed flashing tape, rotted jamb framing, or a sill that has been wicking Lake Dora humidity for decades. We write those known unknowns into the contract as pre-approved allowances before demolition, and any surprise line item gets priced and signed off before we touch it. The price still moves sometimes. It never moves silently.
In most cases, yes. The Preservation Board’s review focuses on the exterior profile, material, and dimensions of the window, not the glass package inside it. Low-E coatings and argon-filled glazing are typically approved as long as the outward appearance matches the original. We specify the glass package in the certificate application and give you manufacturer documents in writing. Call (813) 320-9346 and we will walk you through the filing.
It depends on your elevation, your wind zone, and the specific opening. Mount Dora sits at roughly 184 feet, unusually high for Florida, and hilltop and ridge-facing homes get more direct wind exposure than the flat terrain around them. Some openings will trigger impact-rated glazing requirements. We determine that during the site visit and quote it up front, so you are not hit with a change order at install. Estimates are free.
Fog between the panes means the seal has failed. If the frame and sash are still sound and the window is accessible, replacing just the insulated glass unit is often possible. If the frame has rotted or the Historic District restricts the profile, full replacement is the better path. The only way to know for certain is to pull the unit and inspect the frame, which we do during the free estimate. Call (813) 320-9346 to schedule yours.
What Opening the Wall Will Actually Reveal - And How We Handle It
The single biggest reason a Mount Dora window replacement moves is not the window. It is what the wall reveals once the old unit comes out. Outdated flashing. Rotted framing. Corroded fasteners. A sill that has been soaking up Lake Dora humidity since before the homeowner was born. We opened a 1920s Craftsman bungalow near Donnelly Street to replace two swollen single-pane wood-sash windows and found failed flashing tape and rotted jamb framing hidden beneath the original trim. Because the home sat inside the Historic Preservation Board’s jurisdiction, we had already submitted aluminum-clad wood units matching the original double-hung profile and secured the certificate of appropriateness before any demolition. The structural repair and upgraded flashing were covered under a pre-written allowance, and the city inspector signed off without a stop-work order.
That is the standard. Not because we got lucky. Because we scoped the permit, the material profile, and the structural allowance before we cut anything. Most window companies coming in from Orlando or Ocala do not flag the certificate of appropriateness in their initial bids, and the job stalls at the permit stage. We have seen Mount Dora homeowners left stranded mid-project by exactly that. Our Mount Dora team writes the approvals into the schedule and the allowances into the contract, so the first surprise is also the last one.
Call (813) 320-9346 to schedule your free estimate. A live person answers, day or night, and we will walk you through the scope, the permits, and the real number before you sign anything.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Mount Dora and Lake County with window and door installation built on years of craft heritage.
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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