Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Windows & Doors Across West Hills
Replacing windows or doors in West Hills comes with a set of questions most other Valley neighborhoods never have to ask. Does the product meet Chapter 7A fire-resistant standards? Will the Santa Ana winds find every gap in the frame? Will the county inspector flag the opening size? We answer those questions daily for homeowners along Roscoe Boulevard, Fallbrook Avenue, and the hillside streets above Victory Boulevard. A typical window replacement in West Hills runs $4,500-$15,000, while impact-rated installations start around $8,000 and can reach $25,000 depending on the opening count and rating. Call (877) 610-1318 and we’ll walk your property, measure what needs measuring, and put a written estimate in your hand before we leave the driveway.
Why Barrett & Sons Construction Is West Hills’s Preferred Windows & Doors Company
We’ve been at this since 1998, and Tom Barrett’s name is on every truck that rolls into West Hills. That’s not a marketing line; it’s a fact you can verify by looking up the license number yourself. When a West Hills homeowner calls about a drafty slider or a sticking front door, the person who answers is someone who knows the difference between a 91307 hillside lot and a 91308 flatland tract. We know which streets in West Hills sit inside the Very High Fire Hazard Severity Zone and which don’t, because that single detail changes what windows and doors you’re legally required to install.
Our crews have worked on post-WWII ranch homes throughout West Hills, many of them rebuilt after the 1994 Northridge Earthquake and again after the 2018 Woolsey Fire. That history matters when you’re matching a new entry door to an opening that’s settled half an inch over six decades. We measure for the house you have, not the house the manufacturer assumes you have. And every window or door installation from our Windows & Doors team includes the 90-Day Done Right Promise in writing. If something’s not right, Tom comes back. One call.
Calls to (877) 610-1318 are answered by a live person, not a voicemail tree. When you call about windows and doors in West Hills, you’ll talk to someone who can tell you whether we’re already working on your street this week.
Our Windows & Doors Services in West Hills
Window Installation
New window installation in West Hills usually means either pulling original 1960s aluminum frames or replacing builder-grade vinyl from a 1990s flip. Both are common here. The hillside homes along the Simi Hills often need custom sizing because the original openings were hand-framed and none of them are perfectly square. We order to the eighth of an inch and shim with real wood, not caulk. West Hills window installations start around $4,500 for a modest opening count and climb from there based on glass type, frame material, and whether the opening needs reframing to meet current code.

Door Installation
Front doors in West Hills take a beating from afternoon sun and seasonal wind gusts that regularly exceed 50 mph. That’s why we push solid-core or insulated construction, not hollow slab doors that warp by the third summer. Entry door installation typically lands between $1,200 and $4,000 depending on the door and hardware. For patio and slider openings, West Hills homeowners tend to favor multi-point locking hardware, which holds up better under wind load than a single deadbolt.

Window Replacement
Window replacement in West Hills isn’t just about energy savings, though the valley-bowl heat makes that a real factor come August. If your home sits inside the VHFHSZ boundary near the Santa Monica Mountains edge, replacement windows may need tempered glass, specific frame ratings, and ember-resistant screens to pass inspection. A full-home replacement in West Hills generally runs $4,500, while larger homes with 15 to 20 openings commonly land between $10,000 and $15,000. We write every allowance on paper before ordering, so you’ll know the exact material cost before the first window is pulled.

Impact Windows & Doors
Impact windows and doors in West Hills are less about hurricanes and more about fire, wind, and the occasional branch that becomes airborne during a Santa Ana event. Impact-rated glass holds together under flying debris, and the laminated core also cuts noise from Bell Canyon Road and the 101 corridor. Impact window installation in West Hills starts around $8,000 for smaller jobs and reaches $25,000 on larger hillside homes with custom openings. We stock frames from manufacturers that submit to LA County’s Chapter 7A review process, which saves our West Hills customers weeks of back-and-forth with inspectors.

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 West Hills
We install what we’d put in our own homes, and for West Hills that means brands you can look up before you sign anything. On window jobs, we regularly specify Andersen and Marvin because both publish fire-rating documentation that satisfies LA County inspectors on Chapter 7A reviews. For door work, GAF doesn’t make doors, but their weather barrier systems go into every exterior door and window opening we touch, keeping the waterproofing correct from rough opening to final trim. We order direct and stock common replacement parts locally, so a broken balance or a failed weatherstrip on a West Hills home doesn’t wait two weeks for a warehouse in another state.
Common Windows & Doors Problems We See in West Hills Homes
- Hillside settling and racked openings. Homes built along the sloped lots above Victory Boulevard and Roscoe Boulevard have had decades to shift, and original window and door openings often drift out of square. A replacement window can’t fix the opening; the rough frame has to be corrected first, or the new unit will bind within a year.
- Wind-driven air leaks on west-facing walls. The western edge of West Hills catches the full force of Santa Ana winds that funnel through the mountain passes. Homeowners on those exposures tell us they can feel a draft around patio door seals even on calm days, and weatherstripping alone won’t solve a warped slab or a bent track.
- Chapter 7A compliance gaps from past flips. We’ve walked into West Hills homes that changed hands in the last five years with replacement windows that were never rated for the fire zone. The previous owner saved money; the current owner inherits the correction cost. A proper window replacement in the VHFHSZ requires documentation, not just nice glass.
- Solar heat gain on south-facing glass. The valley-bowl effect cooks south-facing rooms in West Hills from late morning through early evening. Older single-pane windows with failed low-E coatings make bedrooms unusable in summer. Replacing them with properly rated glass changes whole rooms, not just the utility bill.
Pricing for Windows & Doors in West Hills, CA
Here’s what West Hills homeowners should expect to pay. Window replacement runs $4,500 to $15,000 depending on opening count and fire-zone requirements. Impact window installation starts at $8,000 and goes to $25,000 for larger hillside homes. Door installation spans $1,200 to $4,000 for exterior entry doors, and sliding or patio door work typically lands between $2,500 and $7,000. What moves the number is rarely the glass itself. It’s whether the rough opening needs reframing, whether the home sits in the VHFHSZ boundary and requires rated assemblies, and whether custom sizing is needed for non-standard openings. We give free estimates with every scope, every allowance, and every line item written on paper. Call (877) 610-1318 and we’ll come out to West Hills at no charge.
We Also Serve Cities Near West Hills
Beyond West Hills, we take window and door calls from Canoga Park, Woodland Hills, Calabasas, and Chatsworth. If your street backs up to open space in Calabasas or sits on a flatland tract in Canoga Park, the requirements and pricing differ from what applies in Windows & Doors in West Hills. While we’re on your property, we can also talk about Fence Installation in West Hills if wind has pushed your current fence past its useful life, or Driveway & Pavers in West Hills if the front hardscape needs attention while the crew is already there.
Serving West Hills, CA - Our Local Coverage Area
We’re based in the West Hills 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 - Windows & Doors in West Hills
We answer the phone live at (877) 610-1318, and our crews work throughout West Hills every week. A broken window from a wind event or a door that won’t secure after a storm gets prioritized. We’ll give you an honest arrival window when you call, not a vague “someone will be in touch.” For urgent opening coverage, we can often have a temporary board-up or security fix in place the same day, with the permanent replacement scheduled once materials arrive.
Yes. We work the full West Hills area across 91307 and 91308, from the flatland tracts near the 101 corridor to the hillside homes along the Simi Hills edge. The hillside work takes longer to schedule because grading and slope access affect how we stage materials, but we don’t pass on those projects. We’d rather spend an extra hour on the estimate than quote a number that doesn’t hold up once the ladders are up.
In West Hills, a Chapter 7A-compliant window or door typically adds 15 to 25 percent over a standard unit, driven by rated glazing, specific frame materials, and the documentation required for the inspector’s file. That’s the honest spread. Some companies quote the standard price and hope the inspector doesn’t notice; we’d rather price it correctly on the front end so the inspection passes the first time. Call (877) 610-1318 for an exact number for your openings.
Not without a written change order that you sign first. That’s the rule on every Barrett & Sons job, including window and door work in West Hills. If we open a wall and find rot or a racked rough opening that no one could see from the outside, we’ll show you the additional scope on paper with a price attached before we do anything. The allowance that isn’t on paper is a surprise waiting for a date, and we don’t do surprises.
Every window and door installation we complete in West Hills is backed by the 90-Day Done Right Promise, written on the contract. If something isn’t right, one call brings Tom Barrett back to make it right. On top of that, the manufacturers we install, including Andersen and Marvin on windows, have their own published warranties that we register with the manufacturer on your behalf. You’ll have the paperwork, not just a verbal promise.
Get Your Free Windows & Doors Estimate in West Hills - Call Today
If you’re in West Hills and you’re tired of guessing what replacement windows or a new entry door should cost, call (877) 610-1318. We’ll come to your home, measure the openings, check whether fire-zone requirements apply to your street, and hand you a written estimate with real numbers. No trip charge inside the county, and a free second opinion on any written estimate you already have. Tom Barrett and his sons stand behind every opening we touch in West Hills.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving West Hills since 1998.







Before
After
Before
After
Before
After