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 Fontana
A replacement entry door in Fontana typically runs $1,400 to $3,800 installed, depending on material and wind-load rating. Most jobs take one day once the door is on site, and we schedule Fontana work every week. If your existing door has a racked frame or shredded weatherstripping on the north or northwest side, that changes the scope, and we’ll show you exactly what we found before any work starts. Call (509) 265-6387 to schedule a measured survey, or read on to understand what Fontana door replacements actually involve.
We’re Sightline Windows & Doors, and our Door Installation crews work throughout Fontana from the north end near the 210 down through Southridge and the older neighborhoods around Kaiser Steel’s former footprint. Wind exposure here is not theoretical. When Santa Ana gusts funnel through the Cajon Pass, they hit certain Fontana elevations harder than almost anywhere else in the Inland Empire, and we measure for that before we order a single door.
Why Sightline Windows & Doors Is Fontana’s Preferred Door Installation Company
Fontana homeowners don’t call us because we answer the phone. They call because when a previous installer put in a door that howled every time the wind picked up, another Fontana neighbor showed them the photo record we leave on every job. Our technicians are background-checked, uniformed, and arrive with license numbers on the record, per Haven Clause 3. You know who is at your door before they step out of the truck.
We carry the documentation Fontana buyers actually want to see. Every engagement starts with a measured survey you keep. The written scope and the final invoice are the same document, so the price does not move unless the opening itself requires something we could not see behind the old casing. When we find hidden rot or an undersized rough opening in a 1950s stucco home near Seville Park, we photograph it, show you the evidence, and price the repair in writing before touching it.
Sonia Raman leads our team, and the operating standard is hers: write it down, show the evidence, and stand behind the work for 365 days under the Done Right Promise. No verbal assurances. No change orders you didn’t approve in advance.
Our Door Installation Services in Fontana

Entry Doors
A new front door in a 1990s or 2000s Fontana tract home usually involves more than a slab swap. The original builder-grade doors often have failed flashing and hidden rot behind the threshold. We remove the old door, inspect the rough opening and surrounding framing, then install the replacement with new sill pan flashing and a properly shimmed, level frame. Steel and Therma-Tru fiberglass are both common picks in Fontana, and we quote both in writing. Call (509) 265-6387 for a free estimate with real numbers on the page.

Hurricane-Proof Front & Entry Doors
Fontana sits at the outlet of the Cajon Pass, and the wind loading on north- and northwest-facing elevations is not something a standard door is built for. Impact-rated doors from PGT and CGI carry Miami-Dade NOA approvals and handle sustained gusts that tear weatherstripping off lesser products. In Fontana, we recommend wind-rated anchors and heavier threshold seals on those specific elevations as a matter of course. This is not an upsell. It’s what the local conditions demand.

French & Double Doors
Double doors are the most common place we see racked frames in Fontana. Two panels mean two points of movement under wind pressure, and a 25-year-old French door on the windward side of a home near the 15 freeway corridor has usually been flexing for years. We set French and double doors with reinforced center mullions and compression weatherstripping that won’t blow out during the first Santa Ana of the season. The sightline on a properly installed double door should stay dead straight from the interior corner to the exterior edge. We measure it, document it, and hand you the photo.

Replacement Doors
When a Fontana home’s original door is 25 to 35 years old with a warped slab or a frame that has shifted, replacement usually beats repair. We pull the old unit in one day, correct any framing issues, and install the new door with new casing, new weatherstripping, and new hardware matched to the existing interior style. Older mid-century homes around the Kaiser Steel core often have rough openings that are smaller than modern standard sizes, so we field-modify and document the change before the new door goes in.

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.
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AfterCommon Door Installation Problems We See in Fontana Homes
- Racked frames on windward elevations. Doors facing the Cajon Pass wind corridor, which means north and northwest exposures in Fontana, take a beating that standard nailing flanges were never designed for. We see jambs that have shifted, thresholds that have lifted, and weatherstripping that looks like it went through a disposal. The fix is wind-rated frame reinforcement and a threshold seal rated for uplift, not just a new door with the same weak anchoring.
- Hidden rot behind builder-grade doors. The 1990s and 2000s tract homes across north Fontana often had original flashing that was minimal at best. Once water gets behind the door frame, it works into the subfloor and the rough framing. We find this on maybe one in four replacements, and we show you photos before we price the repair separately and in writing.
- Undersized rough openings in older Fontana homes. The mid-century single-story stock near the old mill core was built fast, for steelworkers who needed housing, not for 36-inch modern door slabs. When standard doors don’t fit the opening, the answer is careful field modification and a permit that reflects the new framing. Our survey catches this before the old door comes out, so you’re not surprised mid-job.
- Failed weatherstripping that howls during Santa Ana events. A door that doesn’t seal properly lets wind noise, dust, and hot Inland summer air straight into the house. Fontana’s worst Santa Ana gusts routinely exceed 50 mph through the Pass, and the right weatherstripping spec matters. We match compression seals and threshold sweeps to the specific exposure, not to whatever the supplier had on the shelf.
Pricing for Door Installation in Fontana, CA

Here is what you can expect to pay in Fontana, in writing, before any work starts. A basic steel entry door replacement typically runs $1,400 to $2,400 including installation. A Therma-Tru fiberglass entry system with decorative glass and upgraded hardware lands between $2,600 and $3,800. Impact-rated entry doors from PGT or CGI start around $3,200 and can reach $5,500 depending on size, finish, and glass package. If we find rot or framing damage behind the old door, repairs are priced separately and approved in writing before we touch them. The measured survey is free, and the written quote cannot differ from that document.
| Door Type | Fontana Price Range (Installed) |
|---|---|
| Steel Entry Door | $1,400 - $2,400 |
| Therma-Tru Fiberglass Entry System | $2,600 - $3,800 |
| Impact-Rated Entry Door (PGT, CGI) | $3,200 - $5,500 |
| French / Double Door Replacement | $2,800 - $6,000 |
| Storm / Exterior Door | $900 - $1,800 |
Trusted Brands We Service in Fontana
We install and service doors from PGT, CGI, CWS, and Therma-Tru across Fontana, plus several other verified manufacturers. We specify the product by what the opening requires, not by what’s in stock. For a windward elevation near Sierra Lakes or Hunter’s Ridge, we may spec an impact-rated PGT unit. For a shaded interior door on a mid-century home near downtown, a fiberglass Therma-Tru in a dark finish often makes more sense. Parts and hardware for these brands are stocked locally for Fontana customers, which means fewer delays when a hinge or threshold needs replacing.
How Fontana’s Wind Changes What Gets Installed

Fontana sits directly at the southwestern outlet of the Cajon Pass, and that fact alone changes how we spec doors here. Santa Ana winds funnel through the pass and hit the city with gusts that routinely exceed what neighboring Rancho Cucamonga or Ontario see on the same afternoon. We have learned from fieldwork that callbacks for racked frames, blown-out weatherstripping, and failed sliding-door rollers cluster on north- and northwest-facing elevations, the exact faces exposed to the wind corridor.
This means a door on the windward side of a Fontana home needs heavier-duty threshold seals and reinforced frame anchoring that would be unnecessary even one city to the west. We write this into the scope from the start, with the wind-rated anchors and compression weatherstripping named in the quote, not added later as a surprise. On a mid-century single-story near the old Kaiser Steel mill core, we replaced a rattling aluminum-frame sliding door with a Therma-Tru entry system after inspection found the original jamb had racked and the weatherstripping was shredded on the northwest elevation. We pulled permits, added wind-rated anchors and a Miami-Dade NOA threshold seal, and got the homeowner a smoother-operating, code-compliant door that no longer howls during a Santa Ana. The photo record on that job shows the finished threshold line dead level.
We Also Serve Cities Near Fontana
Our Door Installation in Fontana crews also cover Rialto, Rancho Cucamonga, Riverside, and San Bernardino. Each of those cities has its own wind and housing-stock profile, and we measure for the specific conditions, not a regional average. If you’re in one of those areas and need a written price, call (509) 265-6387.
Serving Fontana, CA - Our Local Coverage Area

We’re based in the Fontana 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 Fontana
Yes. Fontana follows California Building Code, and any door replacement that alters the rough opening, framing, or structural anchoring requires a permit. When we pull a permit, the city may require the new door to meet current energy standards, which in Fontana means a U-factor and SHGC that fit CEC Climate Zone 10 requirements. We handle the permit and the paperwork, and any code-triggered upgrades are priced in the written scope. Call (509) 265-6387 and we’ll walk you through what applies to your specific opening.
Look at the gap between the door slab and the frame at the top and bottom corners. If the reveal is wider on one side than the other, the frame has likely shifted. A door that sticks at the top but swings free at the bottom, or a threshold that has lifted on one corner, is usually racked as well. In Fontana, the tell is strongest on north- and northwest-facing doors. We can confirm it in minutes during a free survey, and we’ll show you photos of the frame readings before recommending any work. Call (509) 265-6387 to schedule the survey.
Compression-style EPDM weatherstripping with a reinforced threshold sweep holds up best on Fontana’s windward elevations. Standard foam tape and basic vinyl bulb seals fail quickly under repeated Santa Ana pressure, which is why we spec compression seals and mechanically fastened threshold sweeps on north- and northwest-facing doors. This is a marked difference from what works just a few miles west in Ontario or Chino. For an exact spec on your door, call (509) 265-6387 for a free estimate.
Yes. You don’t need a full impact-rated package to improve the problem elevations. Many Fontana homeowners with a howling north-facing front door choose an impact-rated PGT or CGI entry system only there, while leaving leeward doors as standard units. The most common upgrade is on street-facing entry doors and sliding patio doors on the north and west sides. We’ll recommend exactly which openings need the wind-rated treatment and which don’t. Call (509) 265-6387 and we’ll put the recommendation in writing, with prices.
Therma-Tru fiberglass doors have held up well in Fontana’s triple-digit summers and intense UV exposure, with the primary failure point being cheap weatherstripping rather than the door itself. Fiberglass does not warp, crack, or expand the way wood does in Fontana’s dry heat, and it doesn’t fade the way steel can with direct afternoon sun exposure. We’ve seen Therma-Tru units in Fontana that still operate and seal properly after 15 years under consistent sun. The supporting components, like weatherstripping and thresholds, get replaced more often, especially on windward exposures. For a door that will genuinely last through Fontana summers and Santa Ana seasons, call (509) 265-6387 to discuss a Therma-Tru entry system with a written quote.
Get Your Written Door Installation Estimate in Fontana

The next step is a measured survey at your Fontana home. We will inspect the existing door, measure the opening, and hand you a written scope with line-item pricing before any work is scheduled. The survey is free, the quote is yours to keep, and the price on that document is the price we honor. Call (509) 265-6387 today, or bring us a competitor’s written estimate and we’ll review it at no charge. If it’s not done right, we make it right under the 365-Day Done Right Promise, stamped on every job under the Haven Standard.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving Fontana under the Haven Standard.










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