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 San Pedro
Window replacement in San Pedro carries a different set of requirements than anywhere else in the Los Angeles basin. The harbor-facing bluffs, persistent marine layer, and port-generated air particulates mean your frames, hardware, and seals fail faster here than they do five miles inland. A typical full frame replacement on a 1920s-1940s bungalow in the 90731 ZIP runs $1,400-$2,800 per window depending on size, product line, and framing condition. Insert window replacement, where the original frame remains sound, runs $800-$1,700 per opening. Every project starts the same way: an inspection that accounts for the specific corrosion and moisture patterns of your block, then a written line-item quote with both manufacturer warranty layers registered before we leave. Call (888) 635-0804 to schedule that inspection.
Why TruePane Windows & Doors Is San Pedro’s Preferred Window Replacement Company
We’ve done enough work in San Pedro to know the difference between a window that is failing because of age and one that is failing because the harbor is winning. Dale Kessler founded this company in 2008 on a rule that governs every install: if the pane is not true, the job is not done. That standard carries more weight on a bluff-side street off Western Avenue than it does in a tract home in Lomita, because the margin for error here is narrower. Our crews have pulled too many corroded jamb weights out of 1930s double-hungs to pretend otherwise. San Pedro homeowners call us because we quote manufacturer lines side by side on paper, register both warranty layers in writing, and stand behind the work with the Done Right Promise: if it is not done right, we make it right, no paperwork fights and no arguing.
Reviews from San Pedro customers consistently mention the same three things: the technician showed up when we said, the quote matched the final bill, and the crew treated the house the way they would treat their own mother’s. That last part is not marketing language. Our technicians are background-checked and uniformed, and they know that a window replacement in a 1930s craftsman bungalow means removing old sashes without letting lead dust into a living room where someone has lived for thirty years. Dispatch and scheduling are coordinated from our Los Angeles office, but the crews serving San Pedro live in the South Bay and know the 90731 ZIP block by block.
Our Window Replacement Services in San Pedro
Full Frame Replacement
Full frame replacement means removing the entire window down to the rough opening, including the old frame, trim, and sash, then installing a new window with fresh flashing and insulation. In San Pedro, this is frequently the correct call on pre-WWII homes where the original wood frames have swelled and rotted from decades of marine moisture. We reframe openings with pressure-treated lumber when the surrounding structure has been compromised, and we wrap every perimeter in flashing tape before the interior trim goes back on. A full frame replacement in San Pedro runs $1,400-$2,800 per window, with fiberglass and marine-rated aluminum lines at the upper end.

Insert Window Replacement
Insert replacement, sometimes called a pocket replacement, installs a new window unit inside the existing frame. It works well in San Pedro when the original frame is still square and structurally sound, which is common on better-maintained 1940s and 1950s tract homes. The catch in this harbor microclimate is the condition of the hidden perimeter: if the existing flashing or weatherstripping has degraded from salt and diesel particulate, an insert will not correct that underlying problem. We only recommend insert replacement when the frame passes a moisture and squareness check first. Expect $800-$1,700 per opening, with a written line-item quote so you see exactly what you are buying.

Storm Window Replacement
Storm windows are a practical companion to original wood windows on San Pedro bungalows, particularly on streets with west-facing exposures where wind-driven rain presses through every gap in a threshold or perimeter seal. Replacing a deteriorated aluminum storm window with a properly gasketed unit will quiet the marine-layer wind that never quite stops and will keep moisture off the primary sash behind it. We install and replace storm windows throughout the 90731 ZIP, including on homes where the interior windows are being kept for historic character. Budget $350-$750 per storm window for standard sizes.

Energy-Efficient Upgrade
The dense marine layer that settles over San Pedro’s bluffs means the “energy” conversation here is less about beating inland heat and more about controlling moisture and blocking wind infiltration. Upgrading to low-E coated glass with argon fill will cut the persistent chill that comes off the water and reduce the condensation that develops on single-pane glass during cooler months. On bluff-side homes, we pair energy-efficient glazing with marine-grade hardware so the track and lock do not corrode out from under the glass in a few seasons. A typical energy-efficient upgrade on a San Pedro bungalow adds $150-$400 per window over base pricing, depending on glazing package and frame material.

Historic Window Restoration
Many San Pedro homeowners in the coastal craftsman and Spanish revival pockets want to keep their original wood windows rather than replace them. That decision makes sense when the sashes are intact and the rot is limited to the sills and lower jambs. We restore original wood windows with epoxy consolidation, Dutchman repairs on rotted sections, new weatherstripping, and rebuilt glazing putty. On a recent 1930s bungalow off Western Avenue, the jamb weights had corroded solid and the rough opening framing had swollen from salt-laden marine moisture. We reframed the opening with pressure-treated lumber, installed a Marvin fiberglass double-hung with low-E glass and argon fill, and wrapped the perimeter in flashing tape before reinstalling the interior trim. No callback since. Restoration work typically runs $500-$1,200 per window depending on the extent of repair.

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 San Pedro
We are an authorized installer for more than a dozen manufacturer lines, and for San Pedro homes we routinely quote, and PGT alongside fiberglass and marine-rated aluminum options from ES Windows and CGI. The reason we quote side by side on paper is simple: a window that performs on a quiet street in Rancho Palos Verdes will not necessarily hold up on a bluff-side block facing the main shipping channel. We stock common hardware and replacement parts for the brands most installed across San Pedro’s aging housing stock so callbacks and follow-up visits happen in one trip, not three. If your existing windows are still under manufacturer warranty, we register both layers in writing before the truck leaves your driveway.
Common Window Replacement Problems We See in San Pedro Homes
- Corroded aluminum slider tracks on 1950s tract homes. After just a few seasons of salt air, the tracks bind so badly the sash cannot be opened without forcing it. The fix is a full frame replacement with marine-rated hardware, not a track cleaning.
- Swollen and rotted wood double-hung jambs. Persistent marine-layer moisture causes wood to expand and rot around the perimeter, which makes sashes stick and seals fail. The rot often extends into the rough opening, which is why a surface-only replacement will fail again.
- Degraded weatherstripping from port-generated diesel particulate. Diesel soot and salt accumulate on rubber weatherstripping, breaking it down and allowing wind-driven rain to infiltrate through the threshold on west-facing exposures. Homes on the western edge of the bluff get hit hardest.
- Condensation and fog between double-pane glass. Seal failure lets marine moisture inside the insulated glass unit. Once fog appears between the panes, the unit cannot be repaired; it needs new glass or a full replacement sash.
Pricing for Window Replacement in San Pedro, CA
San Pedro pricing runs slightly higher than inland South Bay markets, and for good reason: the harbor microclimate demands marine-grade hardware and higher-performing seals, not standard residential aluminum. Here is what we typically see on 90731 jobs:
- Insert window replacement: $800-$1,700 per window
- Full frame replacement: $1,400-$2,800 per window
- Storm window replacement: $350-$750 per window
- Energy-efficient upgrade over base: $150-$400 per window
- Historic wood window restoration: $500-$1,200 per window
What moves the number: the size of the opening, whether the rough framing needs reframing due to rot, the product line you choose, and whether the permit triggers code upgrades on wiring or structure once the wall is open. We write allowances for known risks into every contract, and any surprise finding gets priced and approved in writing before we touch it. No change orders that appear out of nowhere. Call (888) 635-0804 for a free estimate with real numbers on paper.
We Also Serve Cities Near San Pedro
Our crews serve the entire South Bay and Harbor-area corridor, including Lakewood, Lomita, Rancho Palos Verdes, and Carson. If your home falls outside the 90731 ZIP or sits near a city line, call us and we’ll confirm coverage. Visit our San Pedro page for local-specific details or our Window Replacement hub to see the full scope of services we provide across the region.
Serving San Pedro, CA - Our Local Coverage Area
We’re based in the San Pedro 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 San Pedro
Bluff-side homes in San Pedro sit directly above the Port of Los Angeles, where window frames and hardware take a corrosive mix of ocean salt air and diesel particulate from the main shipping channel every day. Standard residential aluminum windows on these streets commonly show track oxidation and glazing seal failure within two to three years, a failure rate you do not see even five miles inland in Torrance or Lomita. The fix is not more maintenance; it is specifying marine-grade hardware and fiberglass or marine-rated aluminum frames from the start. Call (888) 635-0804 and we’ll spec the right product line for your block.
Opening up walls in a pre-1940s San Pedro home frequently triggers code requirements that a surface-level window replacement will not: outdated wiring that must be brought to current standards, undersized or damaged framing that must be reinforced, and failed waterproofing that must be corrected. We handle this with an inspection first, which identifies likely permit triggers before the contract is signed. Allowances for known risks are written into the contract, and any surprise is priced and approved in writing before we touch it. This is the single biggest reason a replacement quote moves, and we would rather tell you before the wall is open than after.
Fog between the panes means the seal on the insulated glass unit has failed and marine moisture from San Pedro’s persistent coastal air is now inside the unit. The glass cannot be wiped clean from the outside; the unit itself needs replacement. If the frame is still sound, you may be able to replace just the sash or glass unit. If the frame is corroded or rotted, a full replacement is the honest fix. Call (888) 635-0804 for an inspection and a written quote.
In many cases, yes, particularly on craftsman bungalows and Spanish revival homes where the original wood windows are part of the home’s character. Restoration makes sense when the sashes are intact and the rot is limited to sills and lower jambs, which we repair with epoxy consolidation and Dutchman repairs. If the rough opening framing has rotted through from decades of salt-laden marine moisture, as we have found on homes off Western Avenue, replacement with a fiberglass or marine-rated product is the better investment. We will give you an honest recommendation either way, with prices on paper for both paths.
San Pedro is not a hurricane market, but the combination of persistent westerly winds off the channel, marine-layer moisture, and the salt-and-diesel corrosion pattern near the port means standard residential glazing often fails prematurely. Impact-rated glazing is overkill for most San Pedro homes unless you want the extra security and noise reduction it provides. What most homes actually need is marine-grade hardware and high-performance seals rated for coastal exposure. We quote both options side by side so you can see the price difference and make an informed decision. Call (888) 635-0804 to talk it through.
If your windows are binding in the salty air, fogging between the panes, or letting wind-driven rain through the threshold, call TruePane Windows & Doors at (888) 635-0804. One inspection, one written quote with real numbers, and a job done to the standard that says it all: if the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Pedro and the South Bay. Dale founded TruePane in 2008 on a second-generation glazier’s principle that out-of-true installs and voided warranties were problems worth fixing permanently.



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