Window Replacementin Fontana, CA
Window replacement in Fontana is permitted work: the City's fee schedule has a dedicated window replacement or retrofit item, with a $210 inspection fee and a $97 plan check fee for the first six windows. Fontana also sits in a 129 mph special wind region. Paid work in homes built before 1978 falls under EPA lead-safe rules.
Fontana's windows take three kinds of punishment: sun, wind and dust. NOAA's 1991 to 2020 normals for Ontario International Airport, the nearest station we found, show about 93 days a year at or above 90 F and about 19 at or above 100 F, and Redlands, to the east, runs hotter at 104 and 26. Santa Ana winds accelerate through the Cajon Pass just north of the city, and the City says gusts there regularly exceed 60 mph. The Census Bureau's 2024 one-year estimates count 61,759 homes, and about 77 percent were built from 1980 on.
This page covers the wind region, the permit and its fee line, heat and glass, older homes, fire-zone glass, addition and second-story windows, and the schedule. Municipal Code text here comes from GoCodebook, a third-party mirror, so confirm each rule with Building & Safety. Price ranges and phases are on our windows page.
Fontana Building & Safety rules that apply to window work
Where windows permits come from in Fontana: City of Fontana Building & Safety Division (Development Services, Community Development).
- The City's fee schedule (as of January 1, 2026) has a dedicated Window Replacement or Retrofit item for work in an existing structure: a $210 inspection fee, a plan check fee of $97 for the first six windows, and $14 for each additional window (the schedule's layout does not make clear which of the two fees the $14 attaches to), so window replacement is permitted work in Fontana.
- New windows in a Fontana room addition must be factory labeled 0.23 SHGC or lower and 0.30 U-factor or lower under the Climate Zone 10 package, total glazing is capped at 20 percent of the addition's floor area plus any glazing removed, and west-facing glazing at 5 percent.
- On a two-story addition, Municipal Code 30-462(b)(3) requires second-floor windows to avoid facing neighbors' windows directly, to consider adjacent pools, spas and recreation areas, and to use high windows, wing walls or view-obscuring treatments where they conflict. Read in GoCodebook's third-party zoning mirror.
Do I need windows rated for Fontana's 129 mph special wind region?
Possibly, though we could not find a number for windows. The Municipal Code designates a special wind region, and the City's handout tells designers to use 129 mph ultimate wind, Risk Category II and Exposure C, against 96 mph in ordinary areas. The code table as mirrored also shows 116 mph for Risk Category I and a second row reading 135 mph that we could not interpret. The City names 'High Wind' installation specs for roofing and vinyl fencing, but windows are not named in the pages we read.
The weather behind the rule is real. The City's Wind and Storms page says northern Fontana is the most exposed and that the season runs roughly September through May, and the draft 2026 hazard plan counts 25 high or strong wind events from 1997 to January 2026, with a gust over 100 mph along the mountain front on April 30, 2014. So ask for the manufacturer's labeled design pressure rating and the installer's anchoring detail in writing, and ask Building & Safety whether the wind region sets a rating for a replacement window.
Do you need a permit to replace windows in Fontana, and what does the City charge?
Yes, in the sense that matters. The City's fee schedule, as of January 1, 2026, has a dedicated Window Replacement or Retrofit item for work in an existing structure: a $210 inspection fee, a plan check fee of $97 for the first six windows and $14 for each additional window. The layout of the schedule does not make clear which fee the $14 attaches to, so treat the figure as a guide. Fontana publishes no list of permit-free window work that we could open.
Expect more than a fee. Every application needs a Construction Waste Management Plan, hauled through Burrtec, and the City's alarm certification applies to alterations or repairs valued over $1,000, with smoke and carbon monoxide alarms checked at final inspection and an adult present or the owner signing. A window job usually passes that line. Building & Safety is closed on Fridays and quotes about three to four weeks for a first plan review, and whether a simple change-out gets plan check or counter review we could not confirm.
Which replacement windows suit Fontana's heat, and what does Climate Zone 10 require?
Glass and frame matter more than brand. California's energy code calls for NFRC-labeled dual-pane glazing in replacement windows for houses of three stories or less, as the Los Angeles building department reads Title 24, and Fontana enforces the 2025 codes adopted by Ordinance 1975. The City's room addition handout places Fontana in Climate Zone 10 and lists 0.23 SHGC or lower and 0.30 U-factor or lower for new windows in additions. We found no Fontana source for window-only values, so the proposal should state the labeled numbers for Zone 10.
Low-emissivity coatings, a low solar heat gain number on west and south walls and a tight frame do the work. An insert keeps the old frame and goes faster, while a full-frame window exposes the framing and means stucco and trim repair. Vinyl usually costs least, wood and fiberglass more. Rain is not the stress, at 11.64 inches a year, but sun is, and when Edison cuts power in a wind event, as it did on seven Fontana circuits for 18 to 98 hours in January 2025, a tighter, better-glazed house keeps its temperature longer.
Do replacement windows in older Fontana homes need lead-safe work or historic review?
Lead first. EPA's Renovation, Repair and Painting rule requires certified firms and trained renovators for paid work that disturbs painted surfaces in homes built before 1978. The Census table counts 5,050 Fontana homes from the 1950s, 2,576 from the 1960s and 5,143 from the 1970s, but it cannot separate 1978 from 1979, so your own build year decides. About 23 percent of the city's homes predate 1980, and original painted wood trim around old windows is where the rule bites.
History is the other layer. Municipal Code Chapter 5 Article XIII lets the City Council designate historical resources and overlay districts, and alterations to a designated property need a certificate of appropriateness. Work done in violation bars all building permits on the property for five years under Section 5-354(c). The Downtown Area Plan says inappropriate improvements have degraded many historic buildings in the core around Sierra Avenue and Arrow Boulevard. We found no list of designated properties, so Planning can look up an address before a window order is placed.
Do I need fire-rated or tempered windows in a Fontana fire hazard zone?
For new construction in the Very High zones, and for new construction and major remodels in High zones, Chapter 7A ignition-resistant construction applies. The 2025 recommended maps put 588 acres of Fontana in Moderate, 1,230 in High and 4,088 in Very High zones, and the City Council designated them by Ordinance 1972. The City adopted the 2025 Wildland-Urban Interface Code without amendments, so we found no local glass rule. Los Angeles's own fire-zone checklist asks for multilayer glazing with at least one tempered pane, glass block or 20 minute rated glazing, and that is a useful benchmark.
Whether a window-only replacement on an existing house triggers Chapter 7A is a question for the Fire District, since the text we read speaks to new construction and major remodels. The Fire Hazard Overlay adds a 50 percent rule: when an alteration reaches half the existing square footage, its construction provisions apply to the whole structure. Check the address on the City's Fire Hazard Severity Zones map, and cover attic and foundation vents with metal mesh no larger than one-eighth inch, as the City's wildfire page advises.
What changes for windows in a room addition, a second story or a new opening?
A new opening is not a like-for-like swap. Fontana's remodel plan list asks for every proposed change to walls, doors and windows, and a Los Angeles bulletin, as we read it, treats a changed opening as plan-check work, so assume a larger slider or a new bedroom window needs drawings. We did not read the code's egress dimensions and do not print them, so ask Building & Safety for the clear opening and sill height before ordering a bedroom window.
In an addition the Energy Code numbers bite: glazing is capped at 20 percent of the new floor area plus any glass removed, and west-facing glass at 5 percent. On a second story, Section 30-462 requires windows that do not look directly into neighbors' windows or yards and that consider adjacent pools, spas and recreation areas, with high windows, wing walls or view-obscuring treatments listed as fixes. A tempered pane near a tub, shower or door is common, but the code lines we read do not spell out where.
How long does window replacement take in Fontana, and who does the work?
Plan on 1 to 2 weeks to measure and quote, then the City's first review of about three to four weeks if plan check applies, then 4 to 8 weeks for the factory to build to size and 1 to 3 days of installation. The factory is the long part, and the manufacturer quotes the date. Work hours under the code are 7 a.m. to 6 p.m. on weekdays and 8 a.m. to 5 p.m. on Saturdays, with no Sunday hours listed. The federal window tax credit does not apply to property placed in service after December 31, 2025, so ignore older pages that still advertise it.
MDG Builders, CSLB #1040337, is the general contractor that measures, orders, permits and schedules the job, and a licensed glazing or window subcontractor does the installation, with the old glass and frames sorted for the Burrtec container and the waste plan. That firm can show a license number and a certificate of insurance when asked.
Window photos from Fontana and nearby homes
Window scenes tied to Fontana, from flashing and delivery staging to historic wood sash and fire-zone glass, in tract homes from the boom years and older houses near downtown. Tap a photo to enlarge it.
What windows costs around Fontana
Our windows page puts vinyl replacement near $550 to $1,200 per installed window and a whole house of 10 to 15 windows near $14,000 to $28,000, with wood and fiberglass above that. We found no Fontana survey, so Los Angeles sources bracket those figures. Remodeling magazine's 2025 Cost vs. Value report prices a vinyl job there at $23,783 and wood at $27,913, recovering about 83.2 and 81.9 percent at resale, and Angi's July 2026 page for the city averages $19,356. The median owner-occupied home in Fontana is worth $615,800, plus or minus $13,248. A wind-rated frame, a changed opening, fire-zone glass and stucco patching can each lift a quote, and the City's window fee item and the Burrtec container appear as their own lines in a written proposal. The subcontractor chain explained shows who does what on the job. For nearby work, see windows in San Bernardino, Jurupa Valley and Los Angeles. A bath window belongs on our Fontana bathroom page, windows for a backyard unit on the Fontana ADU page, new openings on the Fontana room addition page, and the Fontana area page lists every trade we cover in the city.
| What it covers | Typical range |
|---|---|
| Vinyl window, installed, each | $550 to $1,150 |
| Wood or fiberglass window, installed, each | $950 to $2,400 |
| Whole house, 10 to 15 windows | $14,000 to $28,000 |
| Glass options, per window | Double-pane $500 to $2,000. low-E $300 to $1,100. tempered $200 to $700. |
| Remodeling Cost vs. Value 2025, Los Angeles | Vinyl $23,783. wood $27,913. |
| New or enlarged egress opening | $3,200 to $6,500 |
Fontana window replacement questions, answered
Do I need a permit to replace windows in Fontana?
Yes. The City's fee schedule has a dedicated Window Replacement or Retrofit item with a $210 inspection fee and a $97 plan check fee for the first six windows, so it treats the work as permitted. A changed opening or a new slider needs drawings on top of that. Call (909) 350-7640 to confirm how a change-out is handled.
How much do replacement windows usually cost?
Budget about $550 to $1,200 for each installed vinyl window, or $14,000 to $28,000 for a whole house of 10 to 15, with wood and fiberglass costing more. Those numbers lean on Los Angeles data rather than a Fontana survey, so a measured written proposal sets the real figure.
How long does it take for new windows to be installed?
Installation takes 1 to 3 days for a typical house, but the whole job often runs 6 to 12 weeks or longer. Measuring takes a week or two, a City review about three to four weeks if plan check applies, and the factory 4 to 8 weeks. The manufacturer quotes the real date.
Are double pane windows required in California?
For replacement windows in houses of three stories or less, the energy code calls for NFRC-labeled dual glazing, as the Los Angeles building department reads Title 24. Fontana enforces the 2025 California codes. We found no Fontana source for window-only values, so ask for the labeled U-factor and solar heat numbers for Climate Zone 10 in writing.
Do I need windows rated for Fontana's wind?
Possibly. Fontana sits in a special wind region where the City's handout uses 129 mph for Risk Category II, against 96 mph elsewhere, but the pages we read name High Wind specs only for roofing and vinyl fencing. Ask for the labeled design pressure rating and the anchoring detail, and ask Building & Safety whether a rating applies.
Which is better, fiberglass or vinyl windows?
Vinyl costs least and suits most replacements, while fiberglass and wood cost more per window. In a fire zone a metal or fiberglass frame is worth pricing against vinyl. Whichever you choose, the labeled glass numbers on a hot west wall matter more than the frame brand.
Do I need special fire-resistant windows in a Fontana fire zone?
For new construction in Very High zones and new construction and major remodels in High zones, yes: Chapter 7A applies, and Los Angeles's benchmark is multilayer glass with a tempered pane, glass block or 20 minute glazing. Whether a window-only job on an existing house triggers it is a question for the Fire District.
What size egress window is required?
A bedroom needs an emergency escape opening that opens without tools, but we did not read Fontana's code dimensions and do not print them. Fontana enforces the 2025 California Residential Code, so ask Building & Safety for the clear opening and sill height before choosing a window size.
Do replacement windows need lead-safe work in older Fontana homes?
Yes, if the house predates 1978 and a paid contractor will disturb painted surfaces. About 23 percent of Fontana homes predate 1980, and the Census cannot isolate 1978 and 1979, so your build year decides. Ask any window firm for its EPA certification before a sash comes out.
Are window replacements worth it?
They return a good share at resale. Remodeling magazine's 2025 Cost vs. Value report shows vinyl replacement recouping about 83.2 percent of cost in Los Angeles and wood about 81.9 percent, though that is Los Angeles, not Fontana. Comfort, noise and wind tightness add value no resale table counts.
Tell us about your Fontana windows
Share which part of Fontana the house is in, roughly when it was built, how many windows and doors are on the list and whether the lot sits near the foothills or a fire zone, and we will start the first visit with the wind rating and the permit questions.