New construction and addition projects require windows installed correctly from the ground up, with proper flashing, sealing, and code compliance from day one. A window installed incorrectly on new construction creates moisture problems, energy loss, and code issues that are far more expensive to correct after the fact than they are to do right the first time. At Wise Choice Remodeling (CSLB #1104186), we handle window installation for new construction projects, room additions, ADU builds, and garage conversions, coordinating directly with homeowners, builders, and general contractors to keep your project moving.
Window Installation Project Types
We install windows on a wide range of new construction and addition project types across Southern California.
- New home construction
- Room additions and extensions
- ADU construction and garage conversions
- Second-story additions
- Commercial to residential conversions
- Major remodels requiring new window openings
Unlike window replacement, new construction installation involves installing into a rough opening in new framing rather than into an existing finished opening. The installation sequence and flashing requirements differ significantly and must be done correctly before exterior sheathing and stucco are applied.
Window Materials We Install on New Construction
We work with all major residential window materials and help you select the right option for your project based on budget, energy requirements, HOA guidelines, and long-term performance goals.
Vinyl Windows
The most cost-effective and energy-efficient option for most new construction projects. Vinyl windows require no painting or sealing and are available in a wide range of sizes and styles, including configurations that are not available in replacement window lines.
Fiberglass Windows
Fiberglass frames offer superior strength and thermal performance compared to vinyl and are dimensionally stable in temperature extremes. A premium option for projects where performance and longevity are the priority.
Aluminum Windows
Thermally broken aluminum frames provide a sleeker, more contemporary profile preferred for modern architectural styles. We install thermally broken aluminum only — standard aluminum without thermal breaks does not meet California’s energy requirements in most applications.
Wood and Clad Windows
Wood-interior, clad-exterior windows offer a traditional interior aesthetic with a durable exterior finish. A premium option for custom homes and historic restorations where interior wood trim is a design priority.
New Construction vs. Replacement Installation — Key Differences
Understanding the difference helps set the right expectations for your project.
| Factor | New Construction Installation | Replacement Installation |
|---|---|---|
| Opening Condition | New rough framing opening | Existing finished opening |
| Flashing Sequence | Integrated with sheathing and weather barrier | Applied over the existing finished exterior |
| Permit | Building permit required — part of the project | A re-roofing permit is typically required |
| Coordination | With the builder and other trades | Directly with the homeowner |
| Window Type | New construction window with nailing flange | Replacement or insert window |
| Interior Finish | Trim and drywall return installed after | Existing interior finish is typically preserved |
Our Window Installation Process
Pre-Installation Review
We review your project plans, confirm window sizes and specifications, verify permit requirements, and coordinate our installation schedule with your build timeline and other trades.
Rough Opening Verification
We verify that rough openings are correctly sized and framed for the specified window units before installation begins. An incorrectly sized rough opening must be corrected before windows are installed.
Flashing and Moisture Barrier Integration
We install windows in the correct sequence relative to the weather-resistive barrier and exterior sheathing to ensure a continuous moisture-resistant assembly. Proper flashing integration is the most critical aspect of new construction window installation.
Window Installation
We install each window unit plumb, level, and square, fasten it correctly to the framing, and complete all flashing details before the next step of the exterior envelope is applied.
Inspection and Permit Signoff
We coordinate the required building inspection and ensure the installation meets all applicable code requirements, including California Title 24 energy compliance, before the project is closed out.
Final Walkthrough
We walk the completed installation with you or your general contractor, review the work, and provide documentation of warranties and permit signoff before we close the project.
Get a Free Window Installation Estimate
Planning a new construction or addition project? Contact Wise Choice Remodeling to discuss your window installation needs. We will review your plans, recommend the right products, and give you a detailed written estimate with no obligation to move forward.
Permits and Code Compliance
All new window installations in California require a building permit as part of the broader construction project. We handle permit coordination, ensure the installation meets current California Building Code and Title 24 energy requirements, and provide permit signoff documentation before the project is closed out.
For projects in HOA communities, we verify that window styles and materials comply with HOA guidelines before installation begins. We have worked on projects throughout Southern California and are familiar with requirements across different municipalities and communities.
Working With Builders and General Contractors
We work directly with homeowners, custom home builders, and general contractors on new construction and addition projects. Our team understands the importance of schedule coordination on a construction project. A delayed window installation holds up exterior cladding, stucco, painting, and interior finishing.
We stay in touch throughout the project and communicate any issues before they become schedule problems.
Window Installation Cost — What to Expect
New construction window installation costs vary based on the number of windows, the material and size of each unit, project complexity, and any specific code or HOA requirements. We provide detailed written estimates at no charge.
Rather than quoting broad ranges that may not apply to your project, we review your plans and give you an accurate number. There are no hidden fees and no surprise charges. If conditions on site differ from the plans, we communicate the impact before proceeding.
Why Choose Wise Choice for Window Installation
Licensed and Insured
We carry full general liability and workers compensation coverage. You and your project are never exposed when our crew is on site.
Correct Flashing Every Time
Improper flashing integration is the leading cause of window-related moisture problems on new construction. We follow the correct installation sequence and detail every flashing condition before the exterior envelope is closed.
Code Compliant Installations
Every installation meets current California Building Code and Title 24 energy requirements. We handle permits and inspections so you and your builder do not have to.
Builder and GC Coordination
We communicate directly with your project team, coordinate our schedule with the build timeline, and flag any issues before they become delays.
Workmanship Guarantee
We stand behind every installation we complete. If something is not right after we leave, we come back and fix it.
Window Installation Services Across Southern California
Wise Choice Remodeling provides professional window installation services to homeowners across Southern California. We serve Los Angeles County, Riverside County, San Bernardino County, Orange County, San Diego County, and the Palm Desert area. Our licensed crew delivers the same level of care and quality on every job, regardless of location.
Window Installation
Questions Answered
New construction windows have a nailing flange that integrates with the exterior framing and weather barrier. Replacement windows are designed to fit inside an existing frame without disturbing the surrounding exterior. New construction windows must be installed before the exterior envelope is closed.
Yes. Window installation on new construction is part of the building permit for the overall project. We coordinate the window inspection as part of the permit process and provide signoff documentation before the project is closed out.
Yes. We work directly with homeowners, custom home builders, and general contractors. We coordinate our schedule with the build timeline and communicate directly with your project team to avoid delays.
Installation time depends on the number of windows and the project scope. A standard room addition with several windows is typically completed in a single day. Larger new construction projects are scheduled in coordination with your build timeline.
We verify rough opening dimensions during our pre-installation review. If an opening is incorrectly sized, we identify the issue before installation begins and coordinate with your framing contractor to make the correction. We do not install into incorrectly sized openings.
Yes. Wise Choice Remodeling holds CSLB License #1104186 and carries full general liability and workers compensation coverage.