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 Mount Dora
Window replacement in Mount Dora costs between $850 and $2,800 per window for most homes, with full-frame work on older wood cottages running higher due to framing and trim labor. Historic District properties that require a Certificate of Appropriateness typically add $150 to $400 per opening in drafting, board review, and material upcharges for approved wood or aluminum profiles. If you’re calling from Donnelly Street, Sylvan Shores, or Sullivan Ranch, we can get a technician to your home for an on-site assessment and a written quote. Call (813) 320-9346 to schedule a free estimate.
Why TruePane Windows & Doors Is Mount Dora’s Preferred Window Replacement Company
Mount Dora is not a place where a window company from Orlando or Ocala can roll up, pop in vinyl sliders, and leave. The housing stock is older, the Historic Preservation Board gets involved, and the humidity off Lake Dora and Lake Gertrude punishes shortcuts. We’ve worked in enough pre-1950 cottages, Craftsman bungalows, and 1980s tract homes here to know what we’re walking into before we touch a casing.
Our founder, Dale Kessler, is a second-generation glazier who built TruePane around a rule: if the pane is not true, the job is not done. That standard carries into every Mount Dora job we do, whether it’s restoring a 1920s double-hung near Donnelly Street or replacing corroded aluminum sliders in a lakeside neighborhood off Old New England Avenue.
We answer the phone with a live person, day or night. When you call about a window in Mount Dora, you’re talking to someone who knows the area, not a call center. We schedule around the Historic Preservation Board’s review calendar, not against it. And we register both manufacturer warranty layers before the truck leaves your driveway, in writing, with the durations stated. That’s The Keystone Standard, and it’s on every job.
Key Takeaways
- Mount Dora window replacement runs $850 to $2,800 per opening, with Historic District work adding $150 to $400 for board compliance
- Historic District replacements require a Certificate of Appropriateness before installation – we handle the drawings, submittal, and permit path
- Free on-site estimates with written line-item quotes, no surprises later
- Live person answers the phone 24/7 at (813) 320-9346
Our Window Replacement Services in Mount Dora
Full Frame Replacement
When an opening is too far gone to salvage, we pull the entire existing window – sash, frame, jamb, trim – and rebuild from the rough opening out. In Mount Dora’s pre-1950 homes, this often means sistering rotted studs, replacing failed flashing, and squaring a rough opening that hasn’t been square since the house was built. Full frame replacement in Mount Dora runs $1,100 to $2,800 per window depending on size, rot repair, and trim profile.
We write any rot repair into the estimate before we start. You won’t get a call halfway through the job telling you the price just doubled.

Historic Window Restoration
This is where Mount Dora separates itself from every neighboring city. Homes in the Historic District cannot legally get standard vinyl windows installed on street-facing elevations. The Historic Preservation Board requires a Certificate of Appropriateness, and they’ll reject anything that doesn’t match the original profile, material, and lite pattern.
We restore original wood double-hungs, rebuild sashes, replace glazing compound, and fabricate custom jamb liners so the old window operates like new while keeping its historic character. Restored wood windows in Mount Dora typically run $700 to $1,900 per sash depending on rot and joinery repair. The big variable is what’s hidden behind the trim – and we’ll tell you before we cut.

Energy-Efficient Upgrade
Mount Dora’s elevation – roughly 184 feet, unusually high for Florida – means hilltop and ridge-facing homes catch more wind than anything in flat Tavares or Eustis. That wind pushes through worn weatherstripping, drives drafts around window perimeters, and accelerates frame movement. Pair that with year-round humidity off Lake Dora and Lake Gertrude, and a single-pane wood window from 1940 is doing almost nothing for your cooling bill.
Energy-efficient upgrades in Mount Dora start around $950 per window for double-pane low-E units with insulated frames. We quote manufacturer lines side by side on paper – Andersen, Pella, Marvin – so you see what you’re buying, not what a sales rep wants you to buy.

Storm Window Replacement
Older Mount Dora homes with original wood sashes often rely on storm windows for any real weather protection. When those storm frames corrode or their glass goes fogged, the window behind them takes the full brunt of Central Florida wind and rain. We install and replace storm windows that fit the existing historic profiles, keeping the original sash intact where it’s sound and the protection current where it’s not. Expect $500 to $1,200 per storm unit in Mount Dora.

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 Mount Dora
We’re an authorized installer for more than a dozen manufacturer lines, and for Mount Dora jobs we tend to quote most often – especially where Historic District approvals demand wood profiles with accurate muntin patterns. We also work with ViewLux for impact-rated applications on non-historic homes. Because we install in Mount Dora regularly, we keep common hardware, weatherstripping, and glazing compounds stocked locally, which means faster turnaround on restoration work. You won’t wait three weeks for a replacement sash balance to ship from out of state.
Common Window Replacement Problems We See in Mount Dora Homes
- Rotted wood sashes and jambs in pre-1950 cottages: Florida humidity works into old glazing compound, water wicks into the jamb, and rot spreads behind trim and flashing. By the time you see it on the inside, the structural framing has usually been wet for years.
- Galvanic corrosion on aluminum windows near Lake Dora and Lake Gertrude: Constant ambient humidity causes aluminum frames to corrode at steel fastener points. The seal fails, condensation forms between panes, and the window gradually loses its insulating gas fill.
- Historic District jobs stalling at permit: Contractors coming in from Orlando or Ocala routinely miss the Certificate of Appropriateness requirement. The homeowner finds out mid-project when the city stops work – sometimes after trim is already off and a deposit is gone.
- Swollen or binding doors and windows in ridge-facing homes: Mount Dora’s hilltop lots catch direct wind and driving rain, which flexes frames and wears weatherstripping faster than flat-lot construction. A window that binds in July and leaks in September is often a frame-movement problem, not just a sash problem.
Pricing for Window Replacement in Mount Dora, FL
Here’s what window replacement in Mount Dora actually costs in our market. A standard insert replacement in a 1980s tract home – aluminum to vinyl, double-pane low-E – runs $850 to $1,400 per window. Full-frame replacement on an older wood cottage runs $1,100 to $2,800 per opening, with the higher end reserved for severe rot repair, custom trim work, and Historic District-compliant profiles.
Historic window restoration runs $700 to $1,900 per sash. Storm window replacement runs $500 to $1,200 per unit. Energy-efficient upgrades with premium laminated glass and thermally broken frames run $950 to $2,200 per window. The Certificate of Appropriateness process for Historic District work adds $150 to $400 per opening, which we itemize in writing before you sign anything.
Every estimate is free. Every quote is line-itemed on paper. Call (813) 320-9346 and we’ll walk the property, measure every opening twice, and tell you exactly what this will cost before you make any decision.
We Also Serve Cities Near Mount Dora
Our window replacement crews work throughout Lake County and into Orange County. We serve Window Replacement customers in Eustis, Tangerine, Tavares, and Sorrento with the same square-deal pricing and written quotes. If you’re anywhere around Window Replacement in Mount Dora or the surrounding towns, one call handles it. Dispatch and scheduling are coordinated from our South Florida office, and our crews work 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 Replacement in Mount Dora
Yes, and you need more than a permit – you need a Certificate of Appropriateness from the Historic Preservation Board before any window visible from the street can be replaced. This applies to the homes concentrated around the downtown lakefront and the Donnelly Street and Old New England Avenue corridors. Standard vinyl units are typically rejected outright in favor of wood or aluminum profiles that match the original dimensions, material, and lite pattern. We pull the permits, prepare the drawings, and submit the Certificate of Appropriateness application before we order anything. Call (813) 320-9346 and ask for Dale’s team – we’ll walk you through the whole process and tell you upfront what the board will and won’t accept.
Condensation between the panes means the seal has failed, and in homes close to Lake Gertrude or Lake Dora the cause is usually galvanic corrosion at the fastener points, where aluminum frames and steel screws meet in constant humidity. The insulating gas escapes, moisture gets pulled into the cavity, and the window loses most of its thermal performance. Once corrosion starts at the corners, replacing just the glass doesn’t fix it – the frame itself is compromised. We replace those units with fully non-corrosive frame systems and thermal breaks, and we quote you the option set in writing. A $950 insert replacement solves what a $400 glass swap won’t.
If the wood sash is structurally sound – no rot, no joint separation, no severe racking – you can often replace just the glass and reglaze the sash. That’s a $350 to $800 repair in Mount Dora, depending on size and whether we need to rebuild the glazing bed. But if the jamb has rotted behind the trim or the sash joints have opened up, a glass-only repair is putting a new pane into a failing frame. We’ll inspect the sash, probe the wood, and tell you honestly whether repair or full restoration is the right spend. The inspection is free.
You test the wood, and you’re looking at three things: how much solid material remains after rot removal, whether the corner joinery still holds, and whether the jamb itself is compromised behind the trim. In the older homes around Donnelly Street and Old New England Avenue, we commonly find sashes that look fine from the inside but have lost their bottom rails to decades of wicking moisture. Our techs probe the wood with an awl – not a visual guess. If we can save the sash, we restore it. If we can’t, we build a replacement that matches the original profile and go through the Historic Preservation Board path. You’ll see the condition yourself before we quote you a number.
Once the old window is out and the rough opening is exposed, the inspector checks six things: header size and condition, king and jack stud integrity, sill slope and flashing depth, any rotted framing that needs sistering or replacement, proper waterproofing at the rough opening, and compliance with current energy code for the replacement unit’s U-factor and SHGC. In pre-1950 Mount Dora homes, it’s common to find undersized headers by modern code and sill plates that have turned to soft wood. If the inspector calls for a code upgrade, we write it up on a change order, price it, and get your signature before we touch anything. No surprise framing costs – ever. That’s the TruePane way, and it’s in writing on every Mount Dora contract.
Call TruePane for Window Replacement in Mount Dora
If you’ve got original wood windows near the lakes or a 1980s tract home off S.R. 46, we’ll come out, inspect the openings, and put a written quote in your hand. No pressure, no vague itemized lines, no deposit required to start the conversation. Call (813) 320-9346 to schedule your free estimate. A live person answers.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Mount Dora since 2008.
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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