How to Turn Your Existing Los Gatos Home Into a Net Zero Home
Many Los Gatos homeowners overpay on energy because older Bay Area homes were built before modern efficiency standards existed. This guide walks...
Bay Area Custom Home Builder and Home Remodeling Contractor
Building High Performance Homes with Quality Craftsmanship, Transparency, and Energy-Conscious Design
Every home we build is planned carefully and backed by real building science
We are a licensed construction and remodeling company which focuses on building science and energy efficiency. We are certified from PHIUS as a Passive House Consultant and Builder, the most demanding building science credentials available for construction today. Every project we take on goes through an extensive design and material checklist. We look at how your home works as a whole and make decisions that improve how it feels to live in, how much it costs to run, and how well it holds up over time. We have spent 15 years doing exactly that, and we take on a limited number of projects at a time so every home gets the attention it deserves.
Call (408) 644-0690 and we will give you an honest picture of what your project involves before you commit to anything.
Our Home Building and Remodeling Services in San Jose
We build custom homes, ADUs, and additions from the ground up, and handle full home remodels and exterior work across the Bay Area. Every project is planned carefully, permitted properly, and built to last.
Full Home Remodeling
We handle complete home remodels from planning through construction so your home performs better when we are done, not just looks different.
Home Additions
We design and build additions that connect properly to your existing structure, fully planned and permitted before any work starts.
ADU Builders
We build detached ADUs, attached ADUs, and garage conversions, managing every part from planning through construction and finishing.
Exterior Remodeling
From roofing and windows to wall assemblies and insulation, we handle every part of your home’s exterior with quality materials.
Custom Home Builder
We build custom homes to the highest building science standard, airtight, well-insulated, and backed by our owner’s PHIUS certification.
Net Zero Retrofits
Improve your existing home to produce as much energy as it uses, with strategic improvements that reduce waste and emissions.
Passive House Construction
Build a home that’s ultra-efficient, airtight, and comfortable all year. We achieve this using globally trusted Passive House principles.
Have An Idea For A Net Zero Retrofit Or Custom Build?
What Is a Passive House?
It’s not just about style. It’s about how a home works.
The Passive House standard is all about making your home work better. We build homes that are designed to be airtight and heavily insulated, so they stay warm in the winter and cool in the summer with almost no energy use. The result is a cleaner, quieter, and more efficient home.
What Is Net Zero?
A Net Zero home is designed to be a self-sustaining system.
Planned with energy conservation first and paired with small renewable generation systems like solar the goal is to produce enough energy to meet all of its own needs. This gives you a more resilient home with predictable energy costs, no matter what the future brings. We help you achieve this goal for both new home construction and existing retrofits.
Why Bay Area Homeowners Work With Us
- Free Estimates and Clear Pricing
We come out, look at your project, and give you a straight number. No surprises after you sign. - 15 Years of Local Experience
Our owner has spent 15 years building homes across San Jose and surrounding cities. - We Only Take on What We Can Handle
We do not overbook. Every project gets our full attention from start to finish. - One Team the Whole Way Through
You work with us directly. No managing multiple contractors or chasing anyone for updates. - PHIUS Certified and BayREN Partner
Our owner holds the CPHC and CBHB certifications from PHIUS, credentials very few Bay Area contractors hold. - Licensed
California-licensed contractor. Verify our license on the CSLB website.
Ready to talk through your project?
Get in touch and we will come out, look at your home, and give you an honest picture of what the work involves and what it will cost before you commit to anything.
Serving the entire Bay Area
How We Work
Every project follows the same clear process from the first call to the day the job is done. No surprises, no chasing us for updates.
Project Review Call
We hear about your home and figure out whether we are the right fit before anyone commits to anything.
On-Site Assessment and Project Plan
We visit your home, assess what it needs, and put together a clear scope with timeline and costs.
Construction
Our crew handles every phase with care and keeps you updated until the work meets our standards.
Final Walkthrough and Documentation
We walk through the finished work, provide all documentation, and close out only when you are satisfied.
Let’s Design the Future of Your Home
Ready to get started? We’ll walk you through every step with clarity, care, and building science that works.
We Build With Integrity and Verified Results
News, Ideas & Strategies for Smarter Homes
Stay updated on new building standards, California energy news, and real-world insights into electrification, envelope upgrades, and climate-conscious construction.
Is Your Palo Alto Home Losing Heat? Why Energy-Efficient Retrofitting Is a Smart Investment
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Net Zero Remodeling in Palo Alto: Energy Savings, Comfort, and ROI Explained
Net zero remodeling upgrades homes with insulation, electrification, and solar to reduce energy use and lower utility costs.
Start Smarter with a Free Home Retrofit Guide
7 Things to Know Before Starting a Net Zero Retrofit
Thinking about upgrading your home’s energy performance? This free guide breaks down what most homeowners miss and how to avoid costly mistakes. This resource will help you make informed decisions from day one, no matter where you are in the process.
No spam. Just practical advice from the certified Passive House pros at Net Zero Home Builders.