Top-Rated General Contractors Near You in Union City, CA

LETTER FOUR, INC.
BoutiqueBoutique
Committed Quality ResultsCommitted Quality Results
Eco-FriendlyEco-Friendly
Free ConsultationsFree Consultations
Woman OwnedWoman Owned

From major remodels and additions to new construction, Letter Four's residential and commercial clients across Southern California benefit from our in-house expertise in architecture, interior design and licensed general contracting. From permits and plans to the last lick of paint, we provide a matchless combination of continuity, creativity and craftsmanship. This is design-build as it should be: a seamless, simple and stress-free journey to the space of your dreams.

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AP Remodeling
(*)(*)(*)(*)(*)4.9 (322 Reviews)
BoutiqueBoutique
Committed Quality ResultsCommitted Quality Results
Committed to SatisfactionCommitted to Satisfaction
Free EstimatesFree Estimates
LuxuryLuxury

LA's High-End Remodeling & Design-Build Firm: Best of Houzz Service 2017-2024. Over 350 5-star rated combined, AP Remodeling Inc. team has a combined experience of 20 years in development, new construction, and remodeling services for the greater area of Los Angeles County. AP Remodeling is distinguished by its transparency, agility and innovation. Our work process proved itself to be successful both for our company and our customers. From our initial meeting, clients can expect to to receive valuable insig

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Garretson Construction Inc.

Strives to be the best residential, new home builder and remodeler on the peninsula. We give our clients personalized service by being attentive and responsive to our client needs. We are different from our competitors because we commit ourselves and our crew to your project personality. Because of our commitment to our clients and our quality work, we have a clientele base that is 90% repeat clients and referrals. We use qualified professional subcontractors. We have deliberately sought our intelligent,

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GD Enterprises

We treat you the way we’d want to be treated: by clearly explaining every aspect of our work and educating you about your options. As a referral- based business, our ultimate goal is to ensure your total satisfaction. We achieve that by making sure every client receives a high-quality job at a reasonable price.

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Futuras Builders

My name is Jon Bermudez. I know that every home improvement project is in need of a special care from the start towards a finish goal. I know that it takes a team to accomplish all projects from administration, managerial to onsite supervision and on-hand work. I stand by the name Futuras as a team. Taking pride to our group work dynamics, we work like a single unit of machinery or a beast of a team just like in the big league, like Giants. Our team function is to compliment each other in achieving a speci

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Coastal fabrication co

Architectural metal contractors

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California Patios

California Patios has designed and built thousands of patio covers, sun rooms and enclosures in Northern California. Our award winning designers and patio builders will create a beautiful structure that will bring your friends and family together for many years to come. We are based in Yuba City and serve Lincoln, Rocklin, Roseville, and many other Northern California cities. With California Patios you can expect to get a beautifully designed patio, or sunroom… at an affordable price! For a free design cons

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BG Flather Construction Inc

We are a custom residential construction company specializing in high end residential projects for detail oriented clients.

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All Phase Builders

Residential General Contractor specializing in additions and remodeling.

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Edgewood Builders

General Contractor in San Francisco we specialize in

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About General Contractors in Union City, CA

Finding a reliable general contractor in Union City requires more than just a quick search—it demands a local expert who understands the area’s unique challenges and regulations. Whether you’re planning a custom home build, a kitchen remodel, or an accessory dwelling unit (ADU), Union City’s distinct characteristics play a critical role in the construction process. From the city’s proximity to seismic fault lines to its diverse housing stock—ranging from mid-century single-family homes in neighborhoods like Decoto to newer developments in Union Landing—every project must be tailored to meet both structural and aesthetic demands.

One of the key hurdles for construction in Union City is navigating local permitting and zoning requirements. The City of Union City's Building Division enforces strict seismic codes due to earthquake risks, which can impact foundation design, framing, and material choices. Additionally, homeowners in certain districts must contend with HOA guidelines or restrictions under California’s SB 9, which governs lot splits and urban infill projects. These factors make it essential to work with a contractor experienced in handling complex permitting processes and compliance.

When it comes to costs, general contractor services in Union City typically range from $150 to $400 per square foot, depending on the scope of work, materials, and finishes. Whether you’re upgrading a home in Alvarado or building an ADU to maximize rental income, partnering with a contractor who knows the city’s codes, terrain, and neighborhoods can make all the difference in achieving a smooth, successful project.

General Contractor FAQs

A general contractor oversees construction projects, managing all aspects from start to finish. This includes coordinating subcontractors, sourcing materials, ensuring codes and regulations are met, and ensuring the project stays on budget and on schedule. They often handle residential renovations, new home builds, and larger commercial projects. Hiring a general contractor ensures expert supervision and streamlines communication, helping ensure the job is completed efficiently and professionally.

The cost of hiring general contractors can vary widely depending on the scale of the project. On average:

  • Bathroom renovation: $10,000–$25,000
  • Kitchen remodeling: $15,000–$50,000
  • Home additions: $30,000–$150,000
  • Building a new home: $150,000–$500,000+

Keep in mind these ranges are approximate and subject to factors like location, materials, and complexity of the project. It's always advisable to get detailed estimates from multiple contractors to compare pricing and services.

Finding licensed general contractors in Union City involves several reliable methods:

  • Online directories: Use platforms like HomeAdvisor or Angie's List.
  • Local building departments: Contact your city or county building department for lists of licensed professionals.
  • Referrals: Ask friends, family, or neighbors for recommendations.

Make sure to verify their license through a trusted authority, such as your state’s licensing board or local contractor registry. Hiring licensed professionals ensures compliance with codes and regulations.

Here are key questions to ask when speaking with general contractors:

  1. Are you licensed and insured?
  2. Can you provide references or examples of past work?
  3. What’s your timeline for this project?
  4. Will you handle permits and inspections?
  5. Do you offer a warranty on your work?

These questions help assess their qualifications, experience, and reliability. Be thorough in your evaluation, as this can prevent issues down the road.

To avoid scams, follow these guidelines:

  • Verify licenses: Confirm the contractor holds current licensing from a trusted authority, such as your state’s licensing board.
  • Get contracts in writing: Never agree to verbal deals.
  • Avoid large upfront payments: Legitimate contractors follow payment schedules tied to milestones.
  • Check references: Speak directly to past clients about their experiences.
  • Trust your instincts: If something feels off, or the contractor is overly pushy, reconsider.

Taking these precautions helps ensure you hire a reputable professional for your project.

Contractor estimates typically factor in:

  • Material costs: Quality and quantity of materials required.
  • Labor charges: Skilled labor fees, including subcontractors.
  • Project complexity: Scope, design details, and unique challenges.
  • Permitting fees: Costs for pulling necessary permits from the relevant authorities.
  • Timeline: Longer projects may have higher labor costs.

Always request itemized estimates and clarify what’s included, so you can make informed comparisons across contractors.

Project timelines depend on the scope and type of work. Here are general estimates:

  • Small renovations (e.g., bathroom remodels): 4–8 weeks
  • Medium renovations (e.g., kitchen remodels): 8–12 weeks
  • Home additions: 3–6 months
  • New home construction: 6–12+ months

Factors like availability of materials, weather, and contractor schedules can impact timelines. Discuss expected completion dates and potential delays upfront to minimize surprises.

General contractors should hold proper licensing from state or local authorities, depending on their location. Licensing ensures they meet local building codes and safety standards. Many states also require insurance for liability and workers’ compensation. For additional credibility, contractors may pursue certifications like LEED accreditation for sustainable construction or CGP (Certified Green Professional) credentials. Learn more about requirements from trusted resources like National Association of Home Builders.

To set realistic expectations, consider:

  • Budget: Factor in local material and labor costs specific to Union City.
  • Timeline: Account for weather conditions and permit processing times in your area.
  • Scope: Be clear and detailed about your project goals upfront.
  • Communication: Have regular check-ins with your contractor to stay updated.

Remember, unforeseen issues may arise, so flexibility is key. Working closely with a licensed contractor experienced in Union City can help ensure smoother project execution.

Signs of a reputable contractor include:

  • Strong reviews: Positive customer feedback on platforms like Google, Yelp, or industry websites.
  • Transparent communication: Clear responses to questions about licenses, scheduling, and pricing.
  • References: Willingness to provide references from past clients.
  • Detailed contracts: Well-written agreements outlining scope, costs, and timelines.
  • Longevity: Years of experience in the industry often indicate reliability.

Always perform thorough research before signing a contract to confirm the contractor’s reputation and credentials.

Reviews for General Contractors

Basement Rescue in Days
Our basement flooded after a big storm, and I was overwhelmed at the thought of repairs. Within 24 hours of posting my issue, I had quotes from three experienced contractors. The one I hired tackled everything in less than a week, and it came in under budget. Feels great to have my space (and sanity) restored.
Emily R.
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Fast Fix, Big Savings
My deck was dangerously unstable, and I dreaded the cost of a full rebuild. The contractor I found through this service reinforced everything for a fraction of the replacement estimate! Now it's safe for family cookouts, and I saved over $2,000.
Paul H.
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A New Look, Stress-Free
Our living room remodel was stuck because I couldn’t find the right pro I could trust in Pittsburgh. This platform connected me with a general contractor who worked around my schedule and finished the job early. The best part? No hassles, and I finally enjoy coming home to a space that feels like 'me'.
Kim S.
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Maria VierraEditor

Maria Vierra is the lead designer at Vierra Fine Homes, bringing over two decades of experience in high-end residential design and construction. Her expertise and attention to detail ensure every project meets the highest standards of excellence, blending functionality with aesthetic appeal.

Brett Taylor avatar

Brett TaylorAuthor

Brett Taylor is the co-founder of The Builder Market and a visionary entrepreneur in the home services and construction industries. With a passion for innovation, Brett has played a pivotal role in revolutionizing how professionals and homeowners connect and collaborate.

This page was last updated on Jan 10, 2026, 11:04:38 AM