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Casement Window Installation in the Bay Area
Hamilton Exteriors does casement window installation. We measure each opening, then install the frame, sill flashing, insulated glass, seals, trim, hinges, operator, and lock. Serving the Bay Area and Northern California.
500+ projects
Since 2018
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A casement window uses a side-hinged sash that swings outward. The open sash can catch passing air, while the single glass area keeps the view clear when the window is closed.
Operation depends on clear exterior swing space, accessible hardware, aligned hinges, a square frame, and seals that meet evenly. We review these conditions with the opening, sill, trim, and wall finish before ordering.
Casement hardware cannot correct a frame that is out of square. We set the frame first, then adjust the hinges, operator, and keepers through the full sash swing. The final check confirms exterior clearance, even seal contact, lock engagement, screen fit, and comfortable handle reach from inside the room.
How We Install Casement Windows
The installation protects the opening and keeps the outward-swinging sash aligned with its hardware.
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Measure the Opening and Swing Area
We document frame size, wall depth, sill, trim, exterior clearance, handing, handle reach, access, and visible moisture conditions.
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Prepare and Flash the Opening
The crew removes the old unit, completes approved opening repairs, and installs compatible sill and perimeter water-control details.
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Install and Adjust the Sash
We set and seal the frame, complete trim, and test hinges, operator, sash clearance, locks, seals, screen, and drainage openings.
Casement Window Installation Check
| Item | What We Review | Installation Effect |
|---|---|---|
| Opening | Size, depth, square, level, and sill condition | Sets frame preparation |
| Sash swing | Handing, exterior clearance, and room use | Sets opening direction |
| Hardware | Hinges, operator, handle, keepers, and locks | Sets movement and closing |
| Glass and seals | Insulated unit, coating, safety, and contact | Sets glazing and closure |
| Sill and perimeter | Flashing, drainage, insulation, sealant, and trim | Completes the opening |
Use the Sash Swing to Direct Ventilation
An open casement sash projects beyond the wall and can catch passing air. We choose handing with room use, outdoor clearance, screen placement, and the preferred direction of ventilation in mind.
Align the Frame Before Adjusting Hardware
Hinges and operators cannot correct a distorted opening. We prepare the sill, set the frame square, fasten it without bowing, and confirm sash clearance before final hardware adjustment.
Bring the Sash Evenly Into Its Seals
Casement locks pull the sash against perimeter seals. We check hinge position, operator travel, keeper alignment, closing pressure, screen fit, and drainage after sealing and trim work.
Casement Window Financing Options
Casement window costs can include opening repairs, sill flashing, insulated glass, frames, hinges, operators, locks, trim, sealing, and installation. Financing is available with approved credit for eligible window replacement projects. Small standalone window projects may not qualify. During your consultation, we explain eligible work and payment timing.
Ask whether your casement window project qualifies for financing.
Call Now (650) 977-3351 Casement Window Reviews
Verified public reviews from homeowners who hired Hamilton Exteriors.
Robert H.
via Angi
From the very first consultation, we knew we'd made the right choice. The team was knowledgeable and genuinely listened to our concerns about energy efficiency and design. We've already noticed a drop in our energy bills.
Renee D.
via HomeAdvisor
I scheduled to have someone come give me an estimate for all new windows in our 1950s home with not so great Remodeling work by previous owners. Alex Li promptly met with us & his crew throughout the entire process. They were always on time to work, left our home clean of debris & spectacular new JeldWin windows. Helped me with getting Financing as well...Just all around a great experience & highly recommend!
Ethan W.
via HomeAdvisor
I recently hired Hamilton Exteriors to replace my siding and windows, and they did a fantastic job. Their team was punctual, polite, and paid close attention to detail. The siding looks seamless, and the new windows have made a noticeable difference in both appearance and energy efficiency. Communication was always clear, and they finished on time and within budget. I’m very happy with their work and would definitely recommend them.
H.T.
via Google
I had a great experience working with Hamilton exteriors. From start to finish, their team was professional, responsive, and detail-oriented. They made the entire process smooth and stress-free, keeping me updated every step of the way. The quality of their work really stands out. Everything was done efficiently and exceeded my expectations. If you’re looking for a reliable company that takes pride in what they do, I highly recommend them!
Frequently Asked Questions
Didn't find the answer to your question? Call Now (650) 977-3351
How does a casement window open?
The sash is hinged at one side and swings outward. Depending on the unit, a crank or handle operates the sash and pulls it closed.
How do I choose casement window handing?
Exterior clearance, prevailing airflow, room layout, handle reach, nearby walls, and the desired open direction guide which side holds the hinges.
Where should casement windows not swing?
The sash should not interfere with paths, decks, stairs, roof areas, plants, equipment, or other windows. We check exterior clearance before ordering.
Why does casement hardware alignment matter?
Hinges, operators, keepers, and locks guide the sash into its seals. Misalignment can affect movement, closing force, and contact around the frame.
Can a casement window use an interior screen?
Yes. Because the sash opens outward, compatible casement windows can place the screen on the room side. We check fit and removal access.
How do you protect the opening from water?
We complete approved repairs, install compatible sill flashing, connect perimeter water-control details, seal the frame, and preserve designed drainage openings.
Get Your Casement Windows Quote
Tell us about your project. We usually call within 3–5 minutes.
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