Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Installation Across Gardena
Window installation in Gardena usually means replacing original single-pane aluminum or steel frames on postwar bungalows, and the job typically runs $680-$1,250 per window depending on size, frame material, and whether we’re pulling a jalousie unit or a fixed sash. Most full-house replacements on a 1,000 sq ft Gardena ranch land between $8,500 and $16,000, and we complete single-visit installs on a regular schedule. Call (888) 635-0804 for a free written estimate from a team that has seen every window style this city has produced since 1945.
We work Gardena’s grid of 90247 every week, from the older blocks off Rosecrans up toward the Hollypark and Moneta stretches. When we pull up to a 1954 bungalow and see jalousie slats still in the frame, we already know what the homeowner is paying in lost conditioned air every single day. That local knowledge is the difference between a quote that guesses and a quote that scopes the job right. Our Window Installation crew measures twice, quotes manufacturer lines side by side on paper, and registers both warranty layers before the truck leaves your driveway.
Why TruePane Windows & Doors Is Gardena’s Preferred Window Installation Company
We have been working Gardena’s postwar housing stock long enough to recognize which blocks carry original jalousie frames and which have already been switched over to vinyl or fiberglass. That matters because jalousie removal is not a straight swap; it requires reframing the rough opening, addressing the void left by the wider jalousie channel, and flashing for a coastal-moisture zone. A company that treats it like a generic insert job leaves gaps behind the trim.
Dale Kessler founded this company in 2008 after too many years watching voided warranties and out-of-true installs get shrugged off by contractors who were already gone. Our work carries a Done Right Promise: if the pane is not true, we return and make it right, in writing, no arguing. Gardena homeowners keep our number because a live person answers every call, day or night, and because our technicians are background-checked, uniformed, and trained as apprentices before they ever lead a job.
We measure every opening twice. We quote Andersen, Pella, Marvin, Milgard, CGI, and ES Windows on the same sheet so you see the real differences in glass package, U-factor, and price, not a sales pitch. And we pull county permits when the property demands it, which on Gardena’s acreage parcels is more often than homeowners expect. More on that below.
Our Window Installation Services in Gardena
Gardena’s housing runs heavily to modest post-1945 construction: small bungalows, early ranches, and a scattering of larger acreage lots toward the city’s southern edge. The window styles that fit these homes are not interchangeable. Here is what we install most often and why each one works on a Gardena lot.
Single & Double Hung Windows
Single-hung and double-hung windows are the most common replacement on Gardena’s ranch-style bungalows because the vertical sash operation matches the original look and the narrow wall depth of 1950s framing. A typical 36″ x 48″ vinyl double-hung replacement in Gardena runs $620-$920 installed, including new trim, insulation, and flashing. We keep stock on common sizes so a full-house order does not sit in a warehouse queue for three weeks. On a 1954 Hollypark ranch, we swapped jalousie units for Milgard double-hungs with argon-filled low-E glass, and the homeowner told us the morning fog cycle stopped feeling like a draft in the living room within the first week.

Casement Windows
Casement windows seal tight along all four edges, which is exactly what a home in Gardena’s marine layer belt needs. The persistent morning fog carries mild salt that works into old aluminum tracks and accelerates corrosion; a modern vinyl or fiberglass casement removes that failure mode entirely. Gardena casement replacement typically runs $750-$1,150 per unit for standard sizes, and we recommend casements for any room facing the prevailing west breeze where air infiltration has been a recurring complaint.

Sliding Windows
Sliding windows are common on the back walls of Gardena bungalows and on detached workshops and ADUs out on acreage properties. The original aluminum sliders in this area lose their felt pile after fifteen to twenty years, and the result is a window that rattles in wind and leaks air constantly. A replacement vinyl slider with composite rollers and a properly shimmed track runs $580-$880 in Gardena. We regrade and flash the sill on every slider install because clay-heavy soil on the south side of the city drains poorly and pooled water at the sill is where rot starts.

Fixed & Picture Windows
Fixed picture windows are the front-facing statement on many Gardena ranches, and the original single-pane glass from the 1950s offers almost no insulation value. A typical living-room picture window replacement runs $700-$1,400 depending on width and glass package. We recommend low-E glass with a U-factor of 0.30 or lower on any fixed unit here; the marine layer means your energy argument is about heat retention and air sealing, not solar heat gain.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Gardena
We are an authorized installer for more than a dozen manufacturer lines, and we quote them side by side so you see what you are paying for. For Gardena’s coastal-moisture conditions, we commonly recommend Milgard and ES Windows for their vinyl and fiberglass frame durability against salt-air oxidation, and CGI when a homeowner wants an impact-rated product without stepping up to a full storm-catastrophe package. If you bring us a manufacturer you like, we will price it honestly against the lines we carry. We do not steer you toward one brand; we show you the numbers and let the glass package talk.
Common Window Installation Problems We See in Gardena Homes
- Original jalousie windows that cannot be sealed. The 1950s louvered-slat design is unsealed by nature. Even with every slat closed tight, air moves around each glass edge. On a 900 sq ft bungalow, that can mean hundreds of dollars a year in lost conditioned air. Repair is not the answer; replacement is.
- Salt-air oxidation on aluminum frames. Gardena sits five to six miles from the Pacific, squarely in the South Bay marine layer corridor. Thin aluminum frames from the 1950s and 60s pit and corrode here faster than in Hawthorne or Compton just a few miles east. Corroded frames cause fogged insulated glass and failed seals within a decade or so of any glass replacement.
- Improper flashing and sill pooling on acreage lots. Outside the city core, Gardena has properties with clay-heavy soil and older grading. When a window was flashed wrong originally, or when the soil has settled, water pools at the sill and wicks into the jamb. We see rotted jambs on 1960s ranch additions that were flashed with nothing but caulk.
- Hollow-core exterior doors framing the same problem. A window replacement on a postwar Gardena home often exposes that the adjacent door is a hollow-core original from the same decade. We install windows and doors both, and we will point out the door if it is costing you what the new windows save.
Pricing for Window Installation in Gardena, CA
Gardena’s window installation pricing lands in a specific band because of the housing stock. Standard vinyl replacement windows on a postwar bungalow run:
| Window Type | Typical Gardena Price Range |
|---|---|
| Single or Double Hung (standard size) | $620 - $920 per window |
| Casement (standard size) | $750 - $1,150 per window |
| Sliding (standard size) | $580 - $880 per window |
| Fixed / Picture (living room width) | $700 - $1,400 per window |
| Jalousie removal and reframe (per opening) | $180 - $340 added to the replacement window cost |
| Full-house replacement (3-bed ranch, 10-14 windows) | $8,500 - $16,000 |
What moves the number in Gardena is the jalousie factor. If your house still has original jalousie frames, each opening needs reframing, and that adds real labor to every unit. Acreage properties in the southern part of the city may also need county permits, which we pull and pass through at cost. Call (888) 635-0804 for a free written estimate. The quote you get is the price you pay; fixed pricing, no change orders, no surprises on the bill.
We Also Serve Cities Near Gardena
Our crews cover the South Bay and the neighboring communities daily. If you are in Lawndale, Hawthorne, Compton, or Torrance, and you are looking at the same postwar aluminum frames and marine-layer seal failures, the same Window Installation in Gardena team serves those neighborhoods with the same fixed pricing and the same Done Right Promise. Same phone, same crew, same standard.
Serving Gardena, CA - Our Local Coverage Area
We’re based in the Gardena 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 Installation in Gardena
Jalousie windows cannot be meaningfully repaired because the louvered slat design is unsealed by definition; even closed tight, conditioned air moves around every glass edge, so in a Gardena bungalow the realistic fix is removal and replacement with a modern vinyl single-hung or casement unit. The cost of replacement is often recovered in energy savings within a few years, and the security benefit of a locking sash over an unsealable louver is immediate. Call (888) 635-0804 and we will confirm what is in your frames and quote the swap honestly.
Gardena’s persistent morning fog and higher relative humidity carry mild salt-laden air that oxidizes thin aluminum frames faster than in Compton or Hawthorne a few miles east, and that corrosion is what kills insulated glass seals and fogs units within ten to fifteen years. The fix is a frame material that does not corrode: vinyl or fiberglass, with a proper flashing detail that keeps marine-layer moisture out of the rough opening. Call (888) 635-0804 for a quote built around your home’s actual exposure.
Yes, because the main energy loss in Gardena is not solar heat gain but air infiltration through unsealed frames and single-pane glass, which matters even in a mild climate because your heating and cooling dollars leak out all year. A low-U-factor replacement window with proper air sealing routinely cuts heating and cooling costs by 10-20% on postwar bungalows, and it also stops the fog-cycle draft. For an exact quote on your home, call (888) 635-0804; estimates are free and in writing.
On acreage parcels outside the city-designated core of Gardena, window replacement often falls under county permitting requirements, especially when the work changes rough openings, framing, or structural headers connected to a detached building or ADU; we scope this before quoting and pull the permit ourselves at cost. We never skip the permit to save you money, because an unpermitted window swap can bite you years later when you sell. Call (888) 635-0804 and we will check your property’s status before you commit to anything.
Yes, we regularly install windows in detached ADUs, workshops, and garages on Gardena acreage properties, and because those buildings are separate from the main house, the work can proceed without affecting your living space at all. The same crew handles the permit, the install, and the warranty registration, and the Done Right Promise applies to every opening on the property. Call (888) 635-0804 for a free written estimate on the ADU or shop.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Gardena and the South Bay with window and door installation done right since 2008.



Before
After
Before
After
Before
After