Window & door installation in El Cajon, CA
Replacement windows, patio and entry doors, interior doors, and trim. Energy-efficient installs flashed and sealed to prevent leaks.
Best windows & doors in El Cajon, CA
We install and replace windows, doors, and trim across El Cajon and San Diego County. Energy-efficient vinyl and aluminum-clad windows, sliding patio doors, entry doors, and interior doors, all flashed and sealed to keep water and drafts out. Most window jobs finish in 1 to 3 days.
What's included in windows & doors in El Cajon
Replacement windows in El Cajon
Vinyl, aluminum-clad, and fiberglass windows in dual-pane low-E glass. Retrofit or full-frame installs, flashed and sealed against San Diego's coastal moisture.
Sliding & patio doors in El Cajon
Multi-panel sliders, French doors, and stacking glass walls that open your living space to the yard.
Entry & front doors in El Cajon
Steel, fiberglass, and solid-wood entry doors with new frames, weatherstripping, and hardware.
Interior doors in El Cajon
Hollow and solid-core interior doors, barn doors, and pocket doors, hung square with new casing.
Trim, molding & wainscoting in El Cajon
Crown molding, baseboards, window casing, wainscoting, and board-and-batten, mitered tight and caulked.
Weatherproofing & flashing in El Cajon
Proper flashing, sill pans, and sealant so replacement windows and doors never leak or rot the framing.
How to start your El Cajon windows & doors
- 1
Free in-home estimate
We come to your home, walk the space, and listen to what you want out of the window and door installation. No high-pressure sales, no surprise fees later.
- 2
Honest, written quote
You get a clear line-item quote in plain English. Materials, labor, timeline. If something changes mid-project, you sign off before any extra cost.
- 3
Design and material selection
We help you pick finishes that fit your budget and the existing home. We have trade pricing with local suppliers, which we pass through.
- 4
Build with our in-house crew
The Carrasco family runs the job site every day. No revolving subcontractors. Clean work, daily progress, and someone you can talk to face-to-face.
- 5
Final walkthrough and warranty
We do a punch-list walk with you before final payment. If anything isn't right, we fix it. Our workmanship is backed for a full year after completion.
How much does window and door replacement cost in El Cajon?
Replacement windows in El Cajon run $600 to $1,200 per window installed depending on size and frame material. A whole-home window replacement of 10 to 15 windows runs $8,000 to $20,000. Entry doors run $1,200 to $3,500 installed, sliding patio doors $2,000 to $5,000, and interior doors $350 to $900 each. We quote per opening, in writing.
Why El Cajon homeowners choose 5 IN 1 for windows & doors
Windows & Doors in 6 El Cajon neighborhoods
El Cajon is East County — hotter, drier, and built largely in the 1950s through 1980s. The housing stock is heavy on ranch homes and single-story builds with shake or tile roofs and stucco exteriors. Costs typically run slightly below the coastal cities for labor and permit fees, which we pass through to the client.
We have remodeled El Cajon homes since 1987. The Carrasco family runs every job site, the same in-house crew handles your project from rough-in to final walk, and we pull every permit in your name.
El Cajon neighborhoods we serve
- • Bostonia
- • Fletcher Hills
- • Rancho San Diego
- • El Cajon Village
- • Granite Hills
- • Singing Hills
ZIP codes: 92019, 92020, 92021
Recent windows & doors projects in El Cajon
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Windows & Doors in El Cajon: frequently asked questions
How much does window replacement cost in El Cajon?+
In El Cajon, replacement windows run $600 to $1,200 each installed, and a whole-home replacement of 10 to 15 windows runs $8,000 to $20,000. Entry doors run $1,200 to $3,500 and patio doors $2,000 to $5,000. We quote per opening in writing.
How long does window replacement take?+
Most window jobs finish in 1 to 3 days. A single door is a same-day install. Full-frame replacements that involve stucco or siding repair add a day or two for the exterior patch to cure.
Do I need a permit to replace windows in El Cajon?+
A like-for-like retrofit usually does not need a permit in El Cajon. If you are changing the opening size, adding egress for a bedroom, or doing a full-frame replacement, a permit is required. We handle it either way.
Are new windows worth it in San Diego's climate?+
Yes, mostly for comfort and noise. Dual-pane low-E windows cut afternoon heat gain, block UV that fades floors and furniture, and quiet street noise. The energy savings are real but modest in our mild climate, so we set honest expectations.
What windows hold up best in El Cajon?+
In coastal El Cajon areas, we recommend vinyl or fiberglass frames and corrosion-resistant hardware because salt air is hard on aluminum. Inland, aluminum-clad and vinyl both hold up well. We match the frame to your exposure and budget.
Other remodeling services in El Cajon
Kitchen Remodeling in El Cajon
Full kitchen remodels with cabinets, countertops, flooring, and layout changes. We handle the whole job in-house, from rough-in to final walkthrough.
Bathroom Remodeling in El Cajon
Walk-in showers, tubs, vanities, and tile. We handle plumbing, electrical, framing, and finish work in-house.
Flooring in El Cajon
Luxury vinyl plank, tile, hardwood, and laminate. Single rooms or whole-home installs.
Windows & Doors near you in San Diego County
Ready to start your El Cajon windows & doors project?
Free in-home estimate. Honest pricing. Written quote within 48 hours.