New windows and doors improve comfort, cut energy bills and add long-term value to your home. Juniper Windows Ventura pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Fast, Reliable Window Replacement Across Simi Valley
Window replacement in Simi Valley typically runs $650 to $1,450 per window for a standard vinyl insert, and $900 to $2,100 per opening for a full-frame replacement, depending on the condition of the rough opening once we pull the old frame out. Most Simi Valley jobs take one to two days once the windows are in hand, and every project starts with a written price before anything gets ordered. If you’re in the middle of deciding whether to repair or replace the original aluminum windows on your 1960s or 70s tract home, call us at (559) 314-1305 and we’ll walk you through what actually makes sense for your house.
Why Juniper Windows Ventura Is Simi Valley’s Preferred Window Replacement Company
Simi Valley is its own kind of place, and the houses here tell that story. We’re not a general contractor dabbling in windows. We’re the Window Replacement team inside Juniper Windows Ventura, part of the Relay Home Co. family, and we’ve been doing windows and doors since 2001. Sean Mackey leads our crews, and he’s the one who set the standard we don’t bend on: a written price before any work starts, and the 365-Day Done Right Promise on every installation. If it’s not right, we make it right, parts and labor, for a full year. In writing.
Our Simi Valley customers tend to call us after wind season, when a Santa Ana event rattles every original single-pane window in the house and they finally decide to do something about it. They want a live arrival time they can track, a technician who’s background-checked and in uniform, and photo proof of the work when it’s done. That’s the Relay Standard. We answer the phone 24/7 with a real person, and our scheduling is coordinated from our Los Angeles office, with crews serving Simi Valley locally.
Window Repair in Simi Valley
Window repair in Simi Valley is often the smarter first move when the problem is a stuck roller, a broken latch, or dry-rotted weatherstripping rather than failed glass or a warped frame. We’ll do it when the sash is still square and the frame is solid, but the hardware or seals have given out. Expect $180 to $420 for common repairs like roller replacement on aluminum sliders, re-caulking failing jambs, or replacing worn balance springs. If the glass is cracked or the frame has started to rot, repair usually costs more than the window is worth, and we’ll tell you that plainly.
Slider Roller and Track Service
Simi Valley dust is fine and persistent, and it gets into every original aluminum slider track. We pull the sashes, clean the tracks, replace the rollers, and re-lube with a dry silicone so the dust doesn’t make it worse.
Weatherstripping and Seal Work
Before you commit to a full replacement, we’ll check the weatherstripping and the seal between the frame and the stucco. Sometimes a $250 seal repair eliminates the whistling you hear during Santa Ana gusts, and buys you a few more years before replacement makes sense.
Window Replacement Company in Simi Valley
As a window replacement company serving Simi Valley, we focus on the specific reality of the housing stock here: single-family detached homes built mostly between 1960 and 1985, with original aluminum sliding windows that are now four decades past their useful life. Full replacement means removing the old frame down to the rough opening, inspecting what’s behind it, fixing what’s broken, and installing a new window that actually fits. Simi Valley homeowners call us when the doors and windows won’t seal, the rooms heat up like an oven in July, or energy bills climb every summer.
Full-Frame Replacement
Full-frame is the correct fix when the original aluminum frame has corroded, the rough opening is out of square, or water has been getting behind the stucco. We pull the entire unit, assess the opening, replace any dry-rotted wood, and set the new window with proper flashing and insulation. In older Simi Valley homes, this is where we find the problems that inserts hide.
Insert Window Replacement
If the existing frame is sound and square, an insert replacement goes inside it and keeps the job faster and less invasive. We see this work well on some of the two-story homes near the foothills where the frames were sheltered from rain but the sashes themselves are failing.
Trusted Brands We Service in Simi Valley
We stock and install from a focused set of product lines we trust in this climate: PGT, ViewLux, and CGI for impact-rated options, plus Therma-Tru for entry doors when a full opening gets rebuilt. For Simi Valley specifically, PGT impact-rated dual-pane windows with low-E glass handle the twin demands of summer solar heat gain and fall Santa Ana winds. We keep common replacement parts for these lines in local inventory, so if a sash or hardware issue pops up within the warranty, we’re not waiting on a freight truck from across the country.
Common Window Replacement Problems We See in Simi Valley Homes
- Original single-pane aluminum windows that rattle during Santa Ana wind events. The east side tract homes built in the 1960s and 70s almost all have these, and the frames flex enough in strong gusts that the glass chatters against the metal. Replacement with impact-rated dual-pane units changes the whole experience, especially in Wood Ranch and the foothill neighborhoods.
- Stuck rollers and seized tracks from years of valley dust. Simi Valley’s dry, dusty conditions mean aluminum sliders get gritty and stop moving. We often retrofit new rollers and weatherstripping as a first step, before a homeowner commits to a full replacement.
- Dry-rotted framing hidden behind the old frame. When we pull a 50-year-old slider out of a stucco wall, the rough opening sometimes reveals wood that’s been wet for years from failed flashing. That framing has to be rebuilt before the new window will seat properly, and this is where our written-price process keeps the scope controlled.
- Failed waterproofing that led to hidden termite damage. In some foothill-adjacent homes, water running behind the original window jambs created conditions termites liked. We don’t find it until the old frame comes out, and we deal with it transparently when we do.
Pricing for Window Replacement in Simi Valley, CA
A standard vinyl insert window in Simi Valley runs $650 to $1,450 installed. Full-frame replacement runs $900 to $2,100 per opening, with the higher end covering jobs where we have to rebuild a rotted rough opening or install a new structural header. Impact-rated PGT windows for wind-prone areas like Wood Ranch add about 25 to 40 percent over standard dual-pane. You’ll get a written line-item price before we order anything, and that number holds unless we open a wall and find something structural that neither of us knew about. In that case, we price the fix in writing and get your approval before touching it. Call (559) 314-1305 for a free estimate, and you’ll have real numbers in hand.
We Also Serve Cities Near Simi Valley
Our crews regularly work throughout Window Replacement in Simi Valley and the surrounding communities, including Moorpark, Newbury Park, Fillmore, and Somis. If you’re in any of those areas and dealing with the same older window stock and wind-driven dust, the process is identical: written price, live arrival time, photo updates, and the 365-Day Done Right Promise.
Serving Simi Valley, CA - Our Local Coverage Area
We’re based in the Simi Valley 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 About Window Replacement in Simi Valley
In our work across Simi Valley, the quote changes after we open the wall on roughly one in four jobs, and the change is almost always structural: dry-rotted framing, undersized headers, or a code-required upgrade like tempered glass near a door. We handle it differently than most crews do. Our written estimate includes a line-item allowance for typical opening repairs, so you see the contingency figure before we start. If we find something outside that allowance, we stop, write up the exact additional cost, and get your signed approval before we proceed. You can call (559) 314-1305 and we’ll explain how the allowance works on your specific house.
Yes, window replacement in Simi Valley requires a building permit, and a licensed contractor pulls it for you. The permit triggers code compliance on things like egress size in bedrooms and tempered glass near doors, and those upgrades do add scope and cost if your original windows don’t meet current requirements. We pull the permits, schedule the inspections, and make sure the job passes. Our written quote includes the permit cost as a line item, so it’s not a surprise later.
Yes. Homes in Wood Ranch and other foothill-adjacent Simi Valley neighborhoods sit in wind corridors where gusts come faster and harder than they do down in the flats. Impact-rated PGT windows with laminated glass are built to resist wind-borne debris without shattering, and the stiffer frames don’t flex the way original aluminum units do. The practical difference is no more rattling sashes, no more whistling through worn weatherstripping, and a quieter house the next time the winds kick up.
Usually, yes. If the frame is still square and the glass isn’t cracked, we can pull the sash, replace the rollers, clean out the accumulated dust, and re-lube the track for $180 to $320 per slider. If the track itself is grooved or the frame is racked out of square, repair won’t hold up, and we’ll show you exactly why replacement is the better call. Either way, the diagnosis costs you a free estimate, not a guess. Call (559) 314-1305 to schedule one.
Homes in Simi Valley’s wildland-urban interface areas, particularly near the foothills and open spaces, fall under fire-resistive construction requirements that affect window replacement. The code can require tempered or glass-block glazing, ember-resistant screening, or specific frame materials depending on the home’s proximity to fire hazard zones. We check the parcel’s specific designation before we quote, and the written estimate reflects whatever the code requires. No surprises, because we looked first.
Written by Sean Mackey, Owner at Juniper Windows Ventura, serving Simi Valley and surrounding communities.
Six Reasons Homeowners Choose Juniper Windows Ventura
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
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.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.