Windows & DOors
Architectural Glass & Custom Openings
No obligation ● 30-minute-consultation
4.9 Stars ● 490+ Luxury Remodels Completed
San Diego Premier Luxury Remodeler
Dependable. Friendly. Invested.

High-end patio doors
Storefront windows


energy efficiency + Quality installation
an integrated approach to sustainable Building
Our Process
Consultation & Assessment
We begin with a consultation to understand your goals for the project. During this stage we evaluate the existing windows or doors, discuss design preferences, energy efficiency goals, and determine whether you are replacing existing units or modifying openings.
Measurements & Product Selection
Accurate measurements are essential for proper installation. Our team measures each opening and helps you choose the right windows or doors based on style, material, performance, and durability. Options may include sliding windows, casement windows, entry doors, patio doors, or large opening systems.
Design & Material Coordination
Once selections are finalized, we coordinate the materials and confirm the project specifications. This includes frame materials, glass options, finishes, hardware, and other features that affect performance and appearance.
Preparation & Scheduling
Before installation begins, we prepare the work areas and confirm the installation schedule. This stage may include ordering custom units, preparing the openings, and ensuring the project is ready for a smooth installation process.
Installation
Our installation team carefully removes existing windows or doors and installs the new units with attention to fit, sealing, and structural support. Proper alignment, insulation, and weatherproofing are essential to ensure long-term performance and energy efficiency.

Windows & Doors RESOURCES
Explore our latest guides to help you navigate your window and door replacement. From California permit requirements to the pros and cons of custom windows, we provide the expert insights you need to upgrade your home with confidence.
Should I Replace All Windows at Once?
Compare the benefits of full-home replacement versus a phased approach for your budget and goals.
Do You Need a Permit in California?
Understand local regulations and permit requirements to ensure your window or door project is compliant.
How Long for Custom Windows?
Learn about lead times and installation schedules when ordering custom-built solutions for your home.
The Ultimate Guide to Patio Doors
Explore bi-fold and multi-slide options to seamlessly connect your indoor and outdoor living spaces.
Can I Replace a Window With a Door?
Discover the structural requirements and design possibilities for converting window openings into new entryways.
Frequently Asked Questions
Service Areas in San Diego County
Milan Design + Build provides architectural window and door installation services throughout San Diego County, serving homeowners across coastal, central, and inland communities.