Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Replacement in Longwood: What You Need to Know
Window replacement in Longwood, FL typically runs $450-$1,200 per window for standard vinyl retrofits, with full-frame jobs on older concrete-block ranches pushing $1,400-$2,600 per opening when you factor in flashing, interior trim, and the occasional rotted jamb repair. If your home sits in the Longwood Historic Village, plan for a Certificate of Appropriateness review first, and expect to spend more: true wood or wood-clad units with matching muntins start around $1,800 per window installed. We serve every Longwood neighborhood with a live person answering the phone at (754) 238-2201. Dale Kessler founded TruePane on a rule that’s still on the whiteboard: if the pane is not true, the job is not done.
Why Longwood Homes Wear Out Their Windows Differently
Longwood sits far enough inland that salt air is not the main enemy. What we actually see on service calls in Sanlando Springs, the Wekiva-area tracts, and the neighborhoods off Markham Woods Road is a different kind of wear: Central Florida’s daily heat-cool cycling. The original single-pane aluminum sliders and hollow-core doors on 1970s and 1980s concrete block ranch homes expand and contract every afternoon when thunderstorms roll through, and that movement kills glazing seals. Add in Longwood’s inland humidity and you get condensation fog between the panes, mold starting at the bottom corners of frames, and doors that bind by July. It is not dramatic. It is just constant.
A homeowner in Altamonte Springs or Lake Mary deals with the same climate, but Longwood has a complication those cities do not. The Longwood Historic Village is one of Seminole County’s few nationally registered historic districts. Replace a window there without a Certificate of Appropriateness from the city’s Historic Preservation Board, and your Seminole County building permit gets challenged. Standard off-the-shelf double-hung vinyl units are usually non-approvable in that zone because the lite patterns and profiles have to match the original Craftsman design. That means a contractor working Longwood has to run two completely different compliance tracks depending on which side of the city you live on. We do that every week.
What TruePane Sees on Longwood Job Sites
On a 1979 ranch in Sanlando Springs, our crew pulled original single-pane aluminum sliders with seal failure so advanced the sashes had condensation fog between the panes, the argon long gone, and the frames loose enough to rattle in the afternoon wind. We flashed the rough openings with butyl-backed tape, set fusion-welded vinyl double-hungs with low-E glass and argon fill, and trimmed the interior jambs to match the original drywall returns. That is the job done right. We have been at this since 2008 through founder Dale Kessler’s craft tradition, serving communities the way a company should when it plans to be in town thirty years from now.
Our Window Replacement team includes background-checked, uniformed technicians who measure every opening twice and quote manufacturer lines side by side on paper. You see exactly what you are buying. We register both manufacturer warranty layers in writing before the truck leaves your driveway. That is The Keystone Standard, and it backs every job along with our Done Right Promise. If it is not done right, we make it right. No paperwork fights. No arguing.
Do You Need a Certificate of Appropriateness First?
In the Longwood Historic Village, yes. Before a building permit is issued, the city requires sign-off from its own Historic Preservation Board, and the review is specific: replacement windows must match the original lite patterns and profiles. That generally means full-frame wood or wood-clad units with matching muntins, not insert vinyl. We have walked homeowners through this process and installed approvable units in the district. If you live off Ronald Reagan Boulevard, along Wekiva Springs Road, or in one of the 1970s tract neighborhoods, the path is simpler: no certificate, standard county permitting, and you choose the upgrade path that makes sense for your house and your cooling bill. Either way, we handle the paperwork and the install.
Window Replacement Services in Longwood
Full Frame Replacement
Full frame replacement means the old window comes out down to the rough opening, not just the sash. On Longwood’s 1970s and 1980s concrete block ranches, the original aluminum frames were often set with no flashing tape and poor insulation around the perimeter. Full frame replacement lets us correct that and install a window that actually seals against Central Florida’s afternoon downpours. In Longwood, full frame replacement typically runs $1,400-$2,600 per opening, depending on window size and whether rot repair is needed at the jamb. This is the upgrade that stops drafts and water intrusion for good.

Insert Window Replacement
When your existing frame is still square and sound, insert windows go in without disturbing the interior trim or drywall. This is often the right call for Sanlando Springs ranches where the rough opening is fine but the original sashes have failed. Inserts run $450-$950 per window in Longwood for quality vinyl, and most jobs are completed in a single visit. The catch: an insert carries the existing rough opening’s flaws. We measure twice and tell you honestly if an insert will perform or if full frame is the better investment. We do not sell you a product that won’t hold up.

Storm Window Replacement
Florida building codes treat windows as part of the structure’s wind-load system. Longwood’s inland location means less salt air than the coast, but the same afternoon thunderstorm gusts and summer storm season. Original single-pane aluminum sliders from the 1970s do not meet current wind-load minimums. Storm window replacement, whether impact-rated or properly rated non-impact with the right frame and glass package, gives your home the structural integrity it needs and your insurance carrier the documentation it will ask for. In Longwood’s newer subdivisions and older tract neighborhoods alike, we install storm-rated replacements starting around $850 per window.

Energy-Efficient Upgrade
A low-E argon-filled replacement can cut cooling demand in a Longwood home by 15-25 percent, depending on the original window’s condition. The heat gain through old single-pane aluminum sliders is substantial, especially on west-facing elevations along Markham Woods Road and in the Wekiva tracts. We specify low-E coatings suited to Florida’s climate, where the goal is blocking solar heat while still letting light through. Expect $650-$1,400 per window for a true energy-efficient upgrade installed properly. The cheaper alternative is a window that fogs in eight years. We choose better.

Historic Window Restoration
In the Longwood Historic Village, restoration often means more than replacement. Original Craftsman and Florida cottage windows with true divided lites can sometimes be rebuilt rather than removed, preserving the historic fabric and meeting the Board’s requirements. Where frames are too far gone, we source full-frame wood or wood-clad units with matching muntins and profiles. Historic restoration work in Longwood starts around $1,800 per window and rises with custom sizing and wood species. No off-the-shelf vinyl in this part of the city. Dale Kessler would not put a non-approvable unit in your Historic Village home, and neither will we.

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 Install in Longwood
We are an authorized installer for more than a dozen manufacturer lines, and for Longwood homes we put a few names on the quote sheet more often than others. CGI and PGT are the workhorses for impact-rated and storm-rated replacements across Seminole County. CWS and ECO Window Systems give us strong non-impact energy upgrades at honest price points. ES Windows covers the high-end wood, wood-clad, and custom profiles the Historic Village approval process often requires. We quote these side by side on paper so you see exactly what you are buying. No confusion, no surprise line items.
How Much Does Window Replacement Cost in Longwood, FL?
Window replacement in Longwood runs $450-$1,200 per opening for standard inserts, $1,400-$2,600 for full frame, and $1,800+ for historic-grade wood units in the Historic Village. Storm-rated and impact-rated replacements typically add $300-$700 per window. What moves the price: window size, frame material, glass package, whether the existing rough opening needs repair, and whether you are in the Historic Village requiring a Certificate of Appropriateness. We give free estimates with written line-item pricing, and we do not change the number once the work starts. Call (754) 238-2201 to schedule a free estimate in Longwood.
We Also Serve Cities Near Longwood
Our crews work throughout Seminole County and the surrounding area. In addition to Window Replacement in Longwood, we regularly handle window replacement in Lake Mary, Altamonte Springs, Casselberry, and Winter Springs. The climate and the housing stock are similar, but each city has its own code and permitting path. Dispatch and scheduling are coordinated from our South Florida office; crews serve Longwood locally.
Serving Longwood, FL - Our Local Coverage Area
We’re based in the Longwood 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 Longwood
Yes. The Longwood Historic Preservation Board must review and sign off before a Seminole County building permit is issued in the Historic Village, and replacement windows must match the original lite patterns and profiles. Standard double-hung vinyl is usually non-approvable. Call (754) 238-2201 and we will walk you through the application and spec the right windows the first time.
Because the insulated glass seal has failed. On 1970s and 1980s aluminum sliders, repeated heat-cool cycling from Central Florida’s afternoon thunderstorms eventually breaks the seal, releasing the argon fill and allowing moisture to condense between the panes. A fogged pane means the window’s insulating value is gone and the frame’s structural bite has degraded. Call us for an exact quote; estimates are free.
Yes. A properly specified low-E argon-filled window can cut cooling demand by 15-25 percent on a typical Longwood ranch, especially on west-facing elevations. The old single-pane aluminum sliders were never designed for Florida’s heat gain. We quote the glass package on paper so you know exactly what you are getting. Call (754) 238-2201 for a free estimate.
Sometimes, yes. If the rough opening is square and the existing frame is structurally sound, a sash replacement or insert window is a legitimate option and runs $450-$950 per window. If the frame has lost its bite, rotted at the jamb, or was never flashed properly, full frame replacement is the honest choice. We will inspect and tell you which applies. Estimates are free.
For Historic Village approvals, we specify full-frame wood or wood-clad units with matching muntins, and ES Windows is a common line we quote for that application. For standard ranch retrofits across Longwood, we install fusion-welded vinyl from manufacturers like PGT, CGI for storm-rated work, and CWS or ECO Window Systems for strong energy upgrades. Every quote shows the brand, glass package, and warranty terms in writing.
Get Your Free Window Replacement Estimate in Longwood
If you are done with fogged panes, drafts, and doors that bind in July, call us. A live person answers at (754) 238-2201, 24 hours a day, 7 days a week. No voicemail tree, no callback form. We will schedule a free on-site estimate in Longwood, measure every opening twice, and give you a written line-item quote. The work comes with our Done Right Promise and The Keystone Standard: both manufacturer warranty layers registered in writing before we leave your driveway. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors.
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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