Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Trusted Windows & Doors for Sherman Oaks Homeowners
Window and door replacement in Sherman Oaks typically runs $4,500-$15,000 for standard window replacement and $8,000-$25,000 for impact window installation, with most projects quoted in writing within 24 hours of our visit. Rowan Construction Group has delivered 4,000-plus projects since 2007, every one with a written price before work started and a documented photo record when the crew left. In Sherman Oaks, we regularly see accelerated frame deterioration from the San Fernando Valley’s thermal cycling, where summer highs above 95°F and winter lows in the 40s stress sealants and hardware that held up fine in more moderate climates. Call (213) 221-0788 to schedule your free estimate.
What Our Windows & Doors Service Includes
Window Installation
New window installation in Sherman Oaks is what we recommend when the existing opening is compromised, the frame is rotted, or you’re reconfiguring a wall as part of a larger remodel. We measure the rough opening to 1/8-inch tolerance, check the sill pan and flashing integration with the weather-resistant barrier, and install with shims, fasteners, and sealants specified by the manufacturer. Under Clause 1 of the Haven Standard, the written price includes the window, installation, interior and exterior trim, and debris removal; no line item is left to “allowance.”

Door Installation
Door installation covers entry doors, patio doors, and interior passage doors in Sherman Oaks homes, from 1950s ranch-style originals to new construction. We verify the jamb is plumb and the threshold drains properly, because a door that looks right but leaks at the sill will rot the subfloor within two seasons in our climate. Our crews are background-checked and uniformed; the customer receives a photo record of the rough opening condition, the shim placement, and the finished installation before we leave.

Window Replacement
Our Windows & Doors in Encino team also handles window replacement in Sherman Oaks, which makes sense when the glass is fogged between panes, the sash won’t stay open, or the frame has warped beyond weatherstripping repair. We remove the existing unit, inspect the rough opening for water damage or insect activity, and install the replacement with proper sill pan flashing and backer rod and sealant at the perimeter. A typical window replacement project in Sherman Oaks runs $4,500-$15,000 depending on unit count, material, and whether the exterior is stucco, wood siding, or another finish.

Impact Windows & Doors
Impact windows and doors use laminated glass and reinforced frames to resist wind-borne debris, a requirement in some high-wind zones and a practical upgrade for security-conscious Sherman Oaks homeowners. We specify products tested to ASTM E1886 and E1996, with Miami-Dade or Florida Building Code approval where applicable, and we document the rating on the written quote. Installation follows the manufacturer’s HVHZ (High Velocity Hurricane Zone) fastening schedule, not the standard residential pattern, because the frame is only as strong as its attachment to the structure.

Energy-Efficient Windows
Energy-efficient windows in Sherman Oaks reduce cooling loads significantly during Valley summers, when west-facing rooms can exceed outdoor ambient temperature by 10°F with single-pane or failed dual-pane units. We specify U-factor and Solar Heat Gain Coefficient (SHGC) values appropriate for the orientation and shading conditions, not just the lowest numbers on the spec sheet, because over-specifying SHGC on north-facing windows adds cost without return. The written quote shows the estimated annual energy savings based on the specific product and your utility rate tier.

Sliding & Patio Doors
Sliding and patio door installation in Studio City Windows & Doors and throughout Sherman Oaks addresses the most frequently used opening in many homes, and the one most prone to track wear and seal failure. We check the header support before removal, because the concentrated load of a double-wide slider often reveals inadequate framing in older construction. The installation includes a new sill pan, adjustable rollers rated for the door weight, and multi-point locking hardware; the photo record shows the track level and the threshold drainage test.

Impact Garage Doors
Impact garage doors are a specialized product for Sherman Oaks homes where the garage door is a dominant facade element or where the garage itself is finished space. We specify wind-load-rated sectional doors with reinforced tracks and heavy-duty hardware, installed with the manufacturer’s specified spring system for the door weight and wind load. The written quote distinguishes between the door assembly and the opener upgrade, if needed, because conflating the two is how projects exceed budget.

Custom & Geometric Windows
Custom and geometric windows in Sherman Oaks, including circles, trapezoids, and angled units, require precise field measurement and often a site-built or site-modified rough opening. We template the opening before ordering, because even 1/4-inch deviation in a radius or angle will prevent proper installation of a fixed geometric unit. The Haven Standard requires that custom products include a shop drawing signed by the customer before fabrication, eliminating the “I thought it would look different” dispute.

Hurricane Impact Windows
Hurricane impact windows for Sherman Oaks are specified to the same standards as Florida HVHZ products, though our wind speeds are lower; the benefit is debris resistance and forced-entry deterrence. We install with the full fastening pattern and structural sealant specified for the design pressure rating, not the reduced schedule permitted in lower-wind zones, because the premium paid for impact-rated product is wasted if the frame pulls away in a Santa Ana wind event. The written quote includes the design pressure rating in pounds per square foot.

Impact Sliding Glass Doors
Impact sliding glass doors in Windows & Doors in Van Nuys and Sherman Oaks combine the largest glazed area in most homes with the highest security and wind-load requirements. We specify multi-panel systems with interlocking stiles and laminated glass in both lites, installed with continuous sill support and head restraint per the manufacturer’s HVHZ details. The photo record documents the shimming, the fastener embedment depth, and the operational test of the lock and roller system before we leave.

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.
Brands We Service for Windows & Doors

We’ve worked with IKO’s window and door systems in Sherman Oaks and across the Valley, particularly on projects where the window replacement is part of a larger envelope upgrade including roofing. Their products integrate well with our flashing details, and we maintain the installation specifications for their current and recent product lines so the written quote reflects actual material costs, not inflated allowances.
Atlas and Tamko products come through our supply chain for specialized applications, and we’ve installed Boral’s trim and siding adjacent to window openings where the existing exterior finish is being replaced as part of the project. Our sourcing depth across fifty-plus vetted brands means the quote you receive is based on actual distributor pricing and lead times, not a markup disguised as “standard.” Whether you have IKO, Atlas, Tamko, Boral, or any other make, we can source, specify, and install to the manufacturer’s requirements.
Before
AfterSigns You Need Windows & Doors Right Now
- Condensation between glass panes means the insulated glass unit (IGU) seal has failed, and the inert gas fill has escaped. In Sherman Oaks, this accelerates in summer when thermal expansion stresses the edge seal; the window is no longer providing the thermal performance you paid for, and the desiccant inside will eventually saturate and stain the glass permanently.
- Drafts around the frame or sash indicate weatherstripping failure, sash warping, or frame settlement that has broken the sealant bond. We see this frequently in Sherman Oaks homes built in the 1960s and 1970s with original aluminum windows, where the thermal break was minimal and the frame has conducted heat and cold for decades, accelerating material fatigue.
- Difficulty opening, closing, or locking suggests hardware wear, frame racking, or subsidence of the supporting structure. A window that won’t lock is a security vulnerability; a door that won’t latch is a safety hazard if it’s an egress path. We diagnose whether the issue is the unit itself or the rough opening, because replacing a window in a racked frame solves nothing.
- Visible frame rot or water staining on interior trim means water is entering the wall assembly, and the window or door is the likely entry point. In Sherman Oaks, this often appears after winter rains when the stucco weep screed is blocked or the sill pan was omitted during original construction. The damage behind the trim is typically more extensive than the visible stain suggests.
- Exterior noise penetration has increased noticeably when the IGU seal fails or the frame gasket compresses permanently. Single-pane windows or failed dual-pane units in Sherman Oaks homes near Ventura Boulevard or the 101/405 interchange transmit traffic noise that properly sealed modern windows reduce by 50% or more. The acoustic performance is part of the written specification when we quote replacement.
Our Windows & Doors Process - Step by Step

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On-site assessment and measurement. We arrive at your Sherman Oaks home with laser measuring tools, a moisture meter, and a camera. We measure every opening to 1/8 inch, check the existing frame and surrounding wall for water damage or structural issues, and photograph the conditions. This takes 45-90 minutes for a typical home; you receive the photo record whether or not you proceed.
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Written quote with line-item pricing. Under Clause 1 of the Haven Standard, we deliver a written price before any work starts. The quote specifies the manufacturer, product line, glass package, hardware finish, and installation details including interior and exterior trim. Each window or door is listed separately; the total is a flat price, not an estimate subject to change.
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Order and scheduling. Once you approve the quote, we place the order with the lead time stated in writing, typically 4-8 weeks for standard products and 10-14 weeks for custom or impact-rated units. We schedule installation with a confirmed date, not a range, and we confirm by text 48 hours before arrival.
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Installation with documented process. Our background-checked, uniformed crew installs per the manufacturer’s specifications and the flashing details appropriate to your exterior finish. The lead technician photographs the rough opening condition, the waterproofing details, and the finished installation. We test every operable unit for function and every fixed unit for seal integrity before we leave.
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Final walkthrough and warranty documentation. You walk the project with the lead technician, verify the operation of each unit, and receive the warranty registration, the photo record on a digital drive, and the final invoice matching the quoted price. The 365-Day Done Right Promise begins at this point; if anything is not done right, Rowan makes it right.
How Much Does Windows & Doors Cost in Sherman Oaks?
Window replacement in Sherman Oaks typically runs $4,500-$15,000 for a whole-home project with standard vinyl or fiberglass units, while impact window installation ranges from $8,000-$25,000 depending on the design pressure rating and the extent of structural reinforcement required. A single door installation, entry or patio, generally falls between $1,500 and $4,500 installed; custom or oversized units, and those requiring header modification, run higher.
Several factors move the price within these ranges. Material selection is the largest: vinyl is the most cost-effective, fiberglass offers thermal performance and paintability, and clad wood commands a premium for historical compatibility or specific aesthetic requirements. The number of units is obvious but often underestimated; homeowners counting “windows” frequently omit the basement, garage, or second-story units that are visible only from inside. The exterior finish type matters significantly in Sherman Oaks, where stucco demolition and repair adds labor and material cost that wood or vinyl siding does not. Accessibility affects pricing too; second-story units over a concrete patio or on a hillside lot require scaffolding or specialized equipment.
To avoid overpaying, get the specification in writing and compare line-item to line-item, not total to total. A quote that omits the glass package, the hardware grade, or the trim detail is not comparable to one that includes them. Our Free Second Opinion on Any Written Estimate means you can bring a competitor’s quote and we will review it line by line at no charge, identifying where the scope differs and where the pricing is out of market.
Our free estimate includes the on-site assessment, the photo record, the written quote with line-item pricing, and the product literature for the specified units. There is no charge and no obligation. Call (213) 221-0788 to schedule.
Windows & Doors Near Sherman Oaks - Our Service Area

Rowan Construction Group serves Sherman Oaks and the surrounding San Fernando Valley communities including Windows & Doors in Van Nuys, Windows & Doors in Encino, Studio City, North Hollywood, Tarzana, Northridge, and Burbank. We also work in Beverly Hills, West Hollywood, Brentwood, and Santa Monica for clients with properties in multiple locations. Typical response time for a Sherman Oaks estimate request is next business day; most projects are assessed, quoted, and scheduled without the delays common to contractors who subcontract the fieldwork.
Serving Sherman Oaks, CA - Our Local Coverage Area
We’re based in the Sherman Oaks area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions - Windows & Doors in Sherman Oaks

Our service includes on-site measurement, product specification, removal of existing units, installation of new windows or doors with proper flashing and sealant, interior and exterior trim, debris removal, and a documented photo record of the entire process. The written quote specifies every component and operation; nothing is left to “as needed” or allowance. Call (213) 221-0788 for an exact quote for your project - estimates are free.
A typical single window or door installation is completed in one day; a whole-home replacement of 10-15 units generally takes 2-3 days depending on the exterior finish and any structural repairs required. Custom or impact-rated products have longer lead times, 10-14 weeks in most cases, but the installation itself is not extended. We confirm the schedule in writing before ordering and update by text if any change occurs.
Window replacement in Sherman Oaks typically costs $4,500-$15,000 for a complete home project with standard units, and $8,000-$25,000 for impact-rated installation. The price depends on unit count, material, glass package, and exterior finish type. Call (213) 221-0788 for a written line-item quote specific to your home - estimates are free, and we offer a Free Second Opinion on any competitor’s written estimate.
Yes, we work with IKO, Atlas, Tamko, and Boral products regularly, and we maintain installation specifications and supply relationships for these and fifty-plus other vetted brands. If your project involves a brand we have not previously installed, we obtain the manufacturer’s requirements before quoting, so the installation is covered by the product warranty. Call (213) 221-0788 to discuss your specific product - estimates are free.
We do not classify window or door issues as emergencies requiring same-day dispatch; a broken window or compromised door is a security concern, and we recommend temporary boarding if immediate security is the issue. For planned replacement or repair, we schedule assessment within 24-48 hours of contact and deliver the written quote promptly. A live person answers calls 24/7 to coordinate scheduling and answer questions.
Every installation is covered by our 365-Day Done Right Promise: if it is not done right, Rowan makes it right, backed by The Haven Standard, not a handshake. The manufacturer’s product warranty, typically 20 years to lifetime depending on the brand and line, applies separately to the window or door itself. The written quote specifies both warranties in full; there are no asterisks or exclusions buried in separate documents.
Clear a path to each opening by moving furniture and wall decorations at least 3 feet back, remove window treatments if they are not being replaced, and secure pets in a separate area. We protect floors and adjacent surfaces with drop cloths and plastic sheeting, but valuable or fragile items should be moved by the homeowner before we arrive. The crew lead will walk through the preparation with you during the assessment visit so nothing is overlooked. Call (213) 221-0788 to schedule - estimates are free.
Schedule Your Windows & Doors Service in Sherman Oaks Today
Call (213) 221-0788 to schedule your free estimate for window or door installation or replacement in Sherman Oaks. You’ll receive a written price before any work starts, a documented photo record of every visit, and the 365-Day Done Right Promise backed by The Haven Standard. A live person answers calls 24/7 to coordinate scheduling.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Sherman Oaks since 2007.







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