Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Door Installation Across Largo
Door installation in Largo, FL usually runs $1,200 to $4,800 for a standard entry door, while hurricane-rated impact doors start around $2,800 and can reach $9,000 for large or custom openings. Most jobs are finished in a single day once the door arrives. If you’re calling from Largo, you’ll reach a live person at (386) 559-6999, day or night, and we’ll schedule a free in-home measure with a written line-item quote.
We know Largo. We know the concrete-block ranchers off East Bay Drive, the 55+ communities around Ulmerton Road, the canal-front homes near the Intracoastal, and the older neighborhoods west of Missouri Avenue where jalousie doors still outnumber impact-rated ones ten to one. Ed Winslow built this company in 2011, and our crews work throughout Pinellas County every week, so we are not learning your streets from a GPS app.
Why Winslow Windows & Doors Is Largo’s Preferred Door Installation Company
Largo homeowners tend to ask the same three things before we ever set foot in the house: Will this pass the wind mitigation inspection? Will my insurance actually go down? And will you be here when you say you will? We answer all three the same way we have since 2011: yes, usually, and absolutely.
Every door we install in Largo is either a Florida Product Approval rated unit or, where the opening demands it, a Miami-Dade NOA rated unit. No exceptions, no substitutions. When a Largo homeowner’s insurer sends an inspector out after the install, the paperwork matches the product. That matters more here than almost anywhere else in Florida because the OIR wind mitigation credits are often the entire reason the homeowner picked up the phone.
Ed’s name is on the door and on every job we do. That is not a slogan. It is how we have operated for over a decade, with a published address, a license number anyone can look up, and a 36500-Day Done Right Promise: if it is not done right, we make it right. No ticket numbers, no call centers, no subcontractor roulette.
Our Door Installation Services in Largo
Our Door Installation team handles the full range of entry, storm, and replacement doors across Largo. Here is what we do most often in this part of Pinellas County.
Hurricane-Proof Front & Entry Doors
This is the job we do most in Largo, and for a specific reason. Thousands of homes here still have the original single-pane aluminum doors from the 1950s through 1970s, and once an insurer’s inspector photographs them, the replacement becomes non-negotiable. We install impact-rated entry doors from PGT and Therma-Tru with laminated glass interlayers and rated hardware, then we hand you the paperwork your agent needs for the wind mitigation form.

Replacement Doors
Replacing a tired, binding, or corroded door in Largo is rarely a simple slab swap. Salt air off the Gulf pits aluminum frames and hinges within a decade, and we routinely find jambs that are out of square on 60-year-old CBS homes. We replace the entire unit including the jamb when the framing is compromised, which is the only way the door will actually seal and pass inspection.

Storm & Exterior Doors
A storm door is not impact protection by itself, and we will tell you that plainly. Where a storm door makes sense in Largo, we install them as a second layer of weather defense, ventilation, and light control, never as a substitute for a rated primary door. For homes that face the Gulf breezes off Walsingham Road or near Largo Central Park, a well-built storm door can also extend the life of your entry door by years.

French & Double Doors
French doors opening onto a patio or lanai are common in Largo’s canal-front and golf-community homes. We install impact-rated French and double door units in both in-swing and out-swing configurations, sized to your existing rough opening or reframed where needed. Multi-point locking hardware is standard on any exterior-rated French door we install here.

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 Largo
We are an authorized installer for PGT, CGI, CWS, and Therma-Tru, among eight premium brands. For Largo homeowners, that means two things. First, the units we install carry the Florida Product Approval numbers your insurer needs. Second, if a problem ever comes up, we are the ones answering the phone and the ones standing behind the product, not a national chain routing you through a support ticket. We do not install builder-grade doors and then call them premium.
Common Door Installation Problems We See in Largo Homes
- Corroded jambs and hardware from salt air. Homes within a few miles of the Gulf on Largo’s west side, especially around Belleair Bluffs and the Indian Rocks Road corridor, show real corrosion on aluminum frames in as little as 10 years. Replacing only the slab on a corroded jamb is a waste of money; the frame fails too.
- Jalousie and single-pane aluminum doors that fail wind mitigation inspection. A 1960s jalousie door cannot be rated for impact under any modern standard. Once an insurer flags it, the replacement is mandatory if you want the OIR credit, and we handle these replacements weekly in Largo’s older neighborhoods near Clearwater-Largo Road.
- Non-Florida Product Approval doors installed by contractors outside the area. The homeowner pays for a new door, submits the wind mitigation form, and the insurer rejects it. We have fixed this exact situation more times than we can count around Largo, and it always costs more the second time.
- Sliding glass doors that bind and drag after years of sun and salt exposure. Gulf humidity warps tracks, salt pits the rollers, and thermal movement shifts the frame. A door that fights you when you open it is telling you something, and in Largo’s 55+ communities, it is often a safety and accessibility problem too.
Pricing for Door Installation in Largo, FL
A standard single entry door replacement in Largo runs roughly $1,200 to $4,800 installed, depending on the door itself. Impact-rated entry doors from PGT or Therma-Tru start around $2,800 and commonly land between $3,500 and $7,000 for a quality unit with rated hardware and full frame work. Large or custom openings, including French doors, run $4,500 to $9,000 plus. We never pad an estimate and we never spring a change order mid-job; the written quote you approve is the price you pay. Estimates are free, and if you have a written estimate from another company, we will give you a second opinion at no charge.
What Door Installation Costs in Largo
Here is a straight cost table for Largo, based on the jobs our crews do most weeks in this market:
- Standard entry door replacement: $1,200 – $4,800 installed
- Impact-rated single entry door (PGT, CGI, or Therma-Tru): $2,800 – $7,000 installed
- Impact-rated French or double door unit: $4,500 – $9,000+ installed
- Sliding glass door replacement (impact-rated): $3,000 – $8,000 depending on opening size
- Whole-home door package (3-5 openings): $8,000 – $25,000+
What moves the price in Largo: the wind zone requirements for your specific address (most of Largo falls within a high-wind design category under Florida Building Code), whether the rough opening needs reframing due to corrosion or out-of-square framing, and the design pressure rating your insurer requires. A free in-home measure answers all of this with real numbers. Call (386) 559-6999.
Florida Pays You Back
The reason so many Largo homeowners ask about impact doors before anything else is simple: the insurance math. The My Safe Florida Home program offers matching grants up to $10,000 for qualifying wind mitigation upgrades, including rated doors. Florida also exempts impact-resistant windows and doors from sales tax, and the federal 25C energy credit can return up to $600 per year on qualifying units. After installation, a wind mitigation inspection (typically $75 to $150) often yields windstorm premium credits averaging around 25% on the wind portion of the policy. We cannot guarantee what your carrier will do, but we can guarantee the installation will meet the paperwork requirements to qualify.
One thing to know when comparing options in Largo: impact-rated doors are permanent protection. Hurricane shutters and panels have to be installed before every storm, stored somewhere, and physically handled by someone. In Largo’s 55+ and fixed-income communities, that someone is often a retiree who should not be wrestling panels in August. We do not sell or install shutters, but we will happily explain why a rated door is the option that protects your home without asking anything more of you.
We Also Serve Cities Near Largo
Our crews work throughout Pinellas County and the Tampa side of the bay. If you are in Clearwater, Pinellas Park, Palm Harbor, or Tampa, we handle door installation there too. For everything about our work in this area, see Door Installation in Largo for the full picture.
Serving Largo, FL - Our Local Coverage Area
We’re based in the Largo 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 - Door Installation in Largo
Yes, in most cases it lowers the windstorm portion of the premium, often by 20-30%, once a licensed inspector submits the wind mitigation form. Largo homes with older non-rated doors stand to save anywhere from $800 to $2,000 a year on premiums depending on the carrier and the rest of the home’s features. Our installs are done to meet the OIR form requirements exactly, so the credit actually lands. Call (386) 559-6999 and we’ll walk you through what to expect from your insurer.
No jalousie door can pass a wind mitigation inspection under any current Florida standard, and adding storm panels does not change that. The glass louvers cannot be rated for impact or wind pressure, period. If keeping the original look matters to you, we can discuss replacement options that preserve the mid-century character while meeting code, but the jalousie itself has to go if you want the insurance credit.
Salt air accelerates corrosion on aluminum frames, hinges, and locksets, and homes within three to five miles of the Gulf see the worst of it. We specify marine-grade or powder-coated hardware on every Largo install for this reason, and we use corrosion-resistant fasteners and sill pans as standard on exterior openings. A door installed with inland hardware can bind and pit within two years here.
You will get partial credit for the opening you upgrade, but the full credit requires all exterior openings to meet the standard. Many Largo homeowners stage the work: entry door first, sliding glass doors next, then windows. Each rated opening moves the needle on the wind mitigation form, and we can sequence the work across a budget and a schedule that makes sense for you.
A Florida Product Approval (FPA) certifies that a product meets the Florida Building Code for impact resistance and design pressure. A Miami-Dade NOA is a more rigorous certification, historically the strictest in the country, and it is required in certain HVHZ zones. Largo is not in the HVHZ, but many insurers and homeowners here prefer NOA-rated products, and we install both. We will specify the correct rating for your opening and your insurer’s requirements, never a rating above +/-100 PSF unless the opening genuinely requires it.
Our crew recently replaced a corroded builder-grade aluminum slider in a Largo 55+ community near East Bay Drive with a PGT impact-rated sliding glass door carrying a Miami-Dade NOA. The original jamb was pitted from salt air and the sash would no longer seal, so we reframed the opening to meet current design pressure, installed a laminated glass interlayer, and finished with a low-E insulated glass unit. The homeowner’s insurance agent confirmed the wind mitigation credit the same week.
That is the kind of job we do over and over in Largo: a door that finally seals, a frame that is square, and an insurance credit that actually shows up. If you need door installation in Largo, call (386) 559-6999 to schedule your free estimate. Ed’s name is on the door, and we answer the phone like the neighbor down the road.
Written by Ed Winslow, Owner at Winslow Windows & Doors, serving Largo and Pinellas County since 2011.
Six Reasons Homeowners Choose Winslow 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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