Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Fast, Reliable Windows & Doors Across Agoura Hills
Window replacement in Agoura Hills typically runs $4,500-$15,000 for a whole-home project, while individual window installations start around $900 each depending on glazing and framing. If you’re dealing with warped frames, fogged glass, or drafts coming through 1980s single-pane units along Kanan Road or up in the Liberty Canyon area, we can usually assess and quote within a week. Call (877) 610-1318 and you’ll get Tom Barrett or one of his sons, not a voicemail tree.
We’ve been working on hillside and canyon-edge homes in Agoura Hills long enough to know that every street has its own wind exposure, its own sun angle, and its own set of fire-hardening requirements after the Woolsey Fire. That local knowledge matters when you’re choosing glass, seals, and frame materials that have to hold up against Santa Ana gusts and ember-driven heat. We don’t guess at what Agoura Hills plan-check will require. We know, because we’ve pulled permits here and sat with the inspectors.
Why Barrett & Sons Construction Is Agoura Hills’s Preferred Windows & Doors Company
Tom Barrett founded this company in 1998 and never turned it into a franchise. The crews serving Agoura Hills are led by his sons, and Tom himself is on-site most days. When a homeowner in Old Agoura or Morrison Ranch calls us about a sticking patio slider or a rotted wood frame, the person who answers the phone knows exactly who might be on that job. We coordinate dispatch and scheduling from our Los Angeles office, but the people who show up in Agoura Hills are local to the job, carrying the Barrett & Sons name and answering for every cut and caulk line.
What separates us in Agoura Hills is simple: written change orders before any scope change, permits pulled on every eligible job, and the 90-Day Done Right Promise written into every contract. If a window install isn’t right, you call once and Tom comes back. Ask anyone on your street, or look up the license number yourself. We publish Tom’s name, his address, and his license number because we want you to verify us before you sign anything.
We also run background-checked, uniformed crew members on every visit. No strangers off a temp list. No mystery subcontractors. The same set of names shows up to your front door in Agoura Hills that showed up to your neighbor’s place in Westlake Village the week before.
Our Windows & Doors Services in Agoura Hills
Window Installation
New window installation in Agoura Hills means more than swapping glass into an old opening. Hillside homes here often have settled framing from expansive clay soil movement, and the combination of Santa Ana wind uplift and direct canyon sun requires flashings and seals that flat-valley contractors don’t usually bother with. We install Andersen and Marvin windows most often in this area, set into properly flashed rough openings so the seal line holds through seasonal movement.

Door Installation
A front door in Agoura Hills takes a beating. Afternoon heat on west-facing exposures along Thousand Oaks Boulevard can warp a cheap slab within two or three summers. We install solid-core and fiberglass entry doors sized and sealed for those temperature swings, plus weatherstripping rated for the dust that blows through the Las Virgenes wind corridor. If you’re replacing a French door that’s binding in its frame, the root is often door-frame racking from soil movement, not the hinges.

Window Replacement
If your Agoura Hills home still has its original 1970s-1990s single-pane windows, you already know the problem: heat gain in summer, chill in winter, and glass that rattles every time the Santa Anas kick up. Replacement in this market typically runs $4,500-$15,000 depending on unit count and whether you’re upgrading to dual-pane, low-E glazing. For homes inside the Very High Fire Hazard Severity Zone, we also retrofit for Chapter 7A compliance, because window replacement triggers plan-check requirements most homeowners don’t know about until they’re inside the permit office.

Impact Windows & Doors
Impact-rated windows and sliding glass doors in Agoura Hills run $8,000-$25,000 for a whole-home package. The added cost covers multi-pane laminated glass and heavy-duty frames designed to hold together under flying embers and wind-blown debris. After Woolsey, a lot of Agoura Hills homeowners look at this as the single most valuable upgrade they can make, ahead of paint or flooring. We install impact products that meet both Miami-Dade and California Chapter 7A standards, because the ember risk here is real every October.

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 Agoura Hills
We install Andersen and Marvin windows because they’re brands you can look up and verify, not mystery glass off a van. For door hardware and entry systems, we standardize on Grohe and Sterling components where the specs call for it, and we stock common replacement parts so Agoura Hills customers aren’t waiting two weeks for a hinge or a locking mechanism. Fast turnaround on parts matters when your back slider won’t latch and the wind is up. If we don’t carry the part in our rolling stock, we can typically source it overnight through our local suppliers.
Common Windows & Doors Problems We See in Agoura Hills Homes
- Fogged dual-pane glass from failed seals. The daily temperature swing between canyon mornings and hot afternoons in the 91301 and 91376 zip codes causes repeated expansion and contraction of glass units. Once the seal fails, moisture gets in and the only fix is replacement.
- Warped or binding doors from soil movement. The expansive clay soils under many hillside lots in Agoura Hills shift through wet and dry seasons. Door frames rack slightly, hinges bind, and the door stops latching cleanly. Rehanging only works if the rough opening is corrected.
- Ember-damaged frames and sills on homes built before 2008. Older construction in the Liberty Canyon and Old Agoura areas predates current VHFHSZ building codes. Wood-framed windows with combustible sills are an ignition risk. We see a steady stream of replacements driven by insurance inspections and owner awareness after the Woolsey Fire.
- Ultraviolet damage on south and west exposures. Agoura Hills gets 280-plus sunny days a year. Vinyl and wood frames facing south and southwest fade, crack, and chalk faster than in coastal climates. We often recommend UV-stable finishes and lighter frame colors for these elevations.
Pricing for Windows & Doors in Agoura Hills, CA
A few honest numbers, because hiding the price doesn’t help anyone. Window replacement across a typical Agoura Hills ranch runs $4,500-$15,000. Impact window installation lands between $8,000 and $25,000 depending on how many openings and the glazing spec. Single door installations start around $1,200 for a basic slab and go up steeply for multi-point locking entry doors or sliding patio doors. What moves the price most in Agoura Hills is fire-hardening compliance, access difficulty on hillside lots, and whether existing framing needs repair before the new unit goes in. We give free written line-item estimates, no trip charge inside the county, and 10% off for seniors and veterans. Call (877) 610-1318 and we’ll put the numbers in front of you before you commit to anything.
We Also Serve Cities Near Agoura Hills
Our crews serve Agoura Hills and the surrounding communities including Agoura, Westlake Village, Oak Park, and Thousand Oaks. If you’re on the other side of the 101 in Westlake Village or up Chesebro Road toward Oak Park, we’re still close enough to make the trip worth your while. And when you’re ready to talk about your exterior beyond the windows and doors, we also handle Fence Installation in Agoura Hills and Driveway & Pavers in Agoura Hills. One crew, one phone number, one name on the truck.
Serving Agoura Hills, CA - Our Local Coverage Area
We’re based in the Agoura 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 Agoura Hills
We answer the phone 24/7, and if a window is actually broken out or a door won’t secure, we can usually get someone to your Agoura Hills address within a day. For non-emergency estimates, we schedule within a week. Call (877) 610-1318 and we’ll tell you directly what the schedule looks like.
Yes, we cover all of Agoura Hills including 91301 and 91376. That means Old Agoura, Morrison Ranch, Liberty Canyon, the neighborhoods off Kanan Road, and the newer post-Woolsey rebuilds in the hills. We don’t cherry-pick easy street-level jobs.
Yes, and it’s not optional. Homes inside the Very High Fire Hazard Severity Zone must meet Chapter 7A standards when windows or doors are replaced, and that means multi-pane glazing, ember-resistant frames, and specific flashing details. We build those requirements into every written estimate for Agoura Hills, so the price you see on paper is the price you pay. Call (877) 610-1318 and we’ll show you exactly where the fire-hardening dollars go.
Not because of distance. We serve Agoura, Westlake Village, Oak Park, and Thousand Oaks at the same labor rates. What changes the price in Agoura Hills specifically is the combination of fire-hardening requirements, hillside access, and sometimes the need for geotechnical review if a door opening is being enlarged on a steep lot. We give you a written allowance sheet so none of that is a surprise.
Every Barrett & Sons job includes the 90-Day Done Right Promise in writing. If something isn’t right, one call brings Tom back. Manufacturer warranties on Andersen and Marvin products extend well beyond that, and we register all of them in your name. Call (877) 610-1318 for a free estimate and we’ll walk you through the warranty language before you sign.
Ready to Talk Windows & Doors in Agoura Hills?
Call Tom Barrett and his sons at (877) 610-1318. You’ll get a straight answer, a written quote, and no pressure. We’ve been doing Windows & Doors work around Agoura Hills long enough to know what these hills and canyons throw at a house, and we don’t cut corners on fire code or flashing. Tell us what you’re seeing, we’ll tell you what it costs, and you decide. That’s how we’ve done it since 1998.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Agoura Hills and the surrounding Los Angeles County communities.







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