Home Extensions
Home extensions add new square footage by expanding a home’s footprint or reconfiguring existing structures. Extensions are ideal for homeowners who need more living space while maintaining the integrity and style of their original home.
ABOUT THE SERVICE – Home Extensions
Industry Resources & Standards:
Home extensions include architectural planning, engineering, permitting, foundation work, framing, roofing, utility integration, insulation, drywall, flooring, and final finishes. Quartz Construction ensures all extensions meet code requirements and blend seamlessly with the existing structure.
THINGS TO CONSIDER
Property setbacks and zoning regulations
Structural tie-in points
Exterior finish matching
Utility capacity and upgrades
Construction timeline and budget
Pros
- Significant increase in living space
- Boosts home value
- Avoids relocation
- Fully customizable design
Cons
- Larger construction scope
- Permits and inspections required
- Longer project timelines
WHY CHOOSE Quartz Construction
Quartz Construction builds home extensions that are structurally sound, visually cohesive, and built for long-term use. We manage the entire process to deliver reliable results with minimal stress.
WHAT SETS US APART FROM OTHERS
- Full-service extension expertise
- Strong local code knowledge
- Seamless design integration
- Skilled multi-trade coordination
- Commitment to quality
Q1: What is the difference between an extension and an addition?
Extensions expand the home’s footprint; additions add specific rooms.
Q2: Do extensions require permits?
Yes, permits are mandatory.
Q3: Can extensions include kitchens or bathrooms?
Yes, with proper planning.
Q4: How long does a home extension take?
Typically 10–16 weeks.
Q5: Will my home’s exterior match after extension?
Yes, finishes are carefully matched.
Q6: Can I live in my home during construction?
Often yes, depending on scope.
Q7: Do extensions increase resale value?
Yes, especially livable square footage.
Q8: Can extensions be built in phases?
Yes, phased builds are possible.
AREAS WE SERVICE
- San Jose, CA
- Mountain View, CA
- Redwood, CA
- San Mateo, CA
- Milpitas, CA
- Alameda, CA
- Los Gatos, CA
- Palo Alto, CA
- Concord, CA
- Santa Clara, CA
- Danville, CA
- Santa Clarita, CA
- Clayton, CA
- Los Altos, CA
- Walnut Creek, CA
- Lafayette, CA
- Orinda, CA
- Pleasant Hill, CA
- Alamo, CA
- Blackhawk, CA
- Moraga, CA
- Fremont, CA
- Livermore, CA
- Castro Valley, CA
- Dublin, CA
- Menlo Park, CA
- Cupertino, CA
- Newark, CA
- Belmont, CA
- Stanford, CA
- Foster City, CA
- Pleasanton, CA
- Campbell, CA
- Hayward, CA
- Saratoga, CA
- San Ramon, CA
- Union City, CA
- San Leandro, CA
- Sunnyvale, CA
- San Carlos, CA
What Our Clients Say
Join hundreds of happy Bay Area homeowners who trusted Quartz Construction & Remodeling for their projects.
Professional Resources & Regulations
- California Contractors State License Board (CSLB) — Verify contractor licenses
- City of San Jose Building Permits — Permit requirements & inspections
- ENERGY STAR — Energy-efficient materials & standards
Trusted by San Jose Homeowners
4.9/5.0 • 65+ Google Reviews
“Amazing kitchen remodel — on time, on budget. Highly recommend Quartz Construction!”
— Maria S., San Jose
“Professional, communicative, and the bathroom renovation exceeded expectations.”
— David L., Santa Clara
“Built our ADU from scratch — permits, foundation, everything handled seamlessly.”
— Jennifer T., Sunnyvale
Get Your Free Estimate
Licensed • CSLB#1003436 • Serving San Jose & Bay Area
Or call us directly: (650) 749-7436
Quartz is a construction and remodeling company serving San Jose and the nearby areas. Our firm offers a wide range of services, including full-home renovations, kitchen remodeling, bathroom renovations, window replacement, deck building and repair, patio construction, and more.
Location
Address: 1777 Hamilton Avenue #1080, San Jose, 95125 California, USA.
Mon-Sat: 08:00 – 19:00
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