Portola Valley homeowners planning a new home, ADU, addition, or major remodel can work with The McCarthy Company for careful residential construction support. We take on substantial projects that call for clear planning, practical coordination, and steady communication from the first site review through completion.

Many local property owners start with a simple goal: add more usable space, replace an aging structure, or rework an existing home so it fits the way they live now. If you are comparing contractors for that kind of project, the next step is a straightforward conversation about your site, your goals, and the scope of work.


Portola Valley project support

Portola Valley is a strong service area for homeowners who need a contractor capable of handling significant residential work with care. The McCarthy Company, based in La Honda, works throughout San Mateo County and the San Francisco Peninsula, and Portola Valley is one of the places where homeowners often look for help with larger projects that need more than a simple repair or refresh.

We focus on construction that changes how a property functions over the long term. That includes new homes, ADUs, additions, whole-house renovations, and deck projects, along with the related work that often comes with them, such as foundation work, structural repair, roofing, and coordinated trade work.

Common reasons to call

  • A growing household needs more space without moving.
  • An older home needs a full rework rather than isolated updates.
  • A new ADU is being planned for flexible living space or family use.
  • A deck, foundation, roof, or structural element needs replacement or rebuilding as part of a larger project.

Local property needs

Homes in Portola Valley often call for thoughtful planning because no two residential sites behave the same way. A strong construction plan starts with understanding the property, the homeowner’s goals, and how the work needs to fit the existing house, yard, and site conditions. That can shape everything from layout decisions to structural details and the way different trades are sequenced.

For larger residential projects, we evaluate the work as a whole instead of treating each part separately. That means considering the new space, the existing structure, the foundation, roof lines, framing, siding, windows and doors, utilities, and finish work together so the project is coordinated from start to finish.

Projects that benefit from coordination

Some Portola Valley homes need a single clear plan because the work affects several parts of the house at once. A remodel may require structural repair and roofing. An addition may require foundation and concrete work. An ADU may need design-build coordination, utility planning, and careful scheduling of different trades. We handle that kind of sequencing as part of the construction process.


Core services

Homeowners in Portola Valley can call on The McCarthy Company for a focused set of residential construction services, with the strongest emphasis on substantial projects.

  • New Home Construction
  • ADU Construction
  • Home Additions
  • Home Remodeling
  • Whole House Renovation
  • Design-Build Services
  • Deck Construction & Replacement
  • Kitchen Remodeling and Bathroom Remodeling as part of larger residential work
  • Foundation & Concrete Work
  • Rot Repair & Structural Repair
  • Roofing

We also coordinate related construction work when it supports the project as a whole, including siding, windows and doors, residential electrical and panel work, plumbing, HVAC and heat pumps, retaining walls, and water treatment and filtration.

Where kitchen and bath work fits

Kitchen remodeling and bathroom remodeling are part of the service mix, but they are typically handled as pieces of larger residential projects rather than the main focus. The priority remains on new homes, ADUs, additions, major remodels, and deck construction.


How projects move

Residential construction works best when each phase is handled in order. Our process begins with understanding what the homeowner wants the project to accomplish, then evaluating the property and existing conditions, then building a practical scope that fits the work ahead.

  1. Listen and evaluate

    We start by discussing the goal of the project, the current house or site, and the major decisions that need to be made.

  2. Plan the scope

    From there, we help shape the work into a clear construction plan that accounts for design, structure, systems, and finish details.

  3. Coordinate trades

    When engineering, specialty trades, or multiple construction phases are needed, we coordinate that work so it moves in a practical sequence.

  4. Manage construction

    During construction, we keep the project moving carefully, handle field coordination, and communicate as the work progresses.

  5. Complete the build

    We finish the work with attention to detail so the final result fits the home and is built for long-term use.


New homes and ADUs

New home construction and ADU construction deserve a contractor who can manage the full picture, not just one part of it. These projects usually involve planning, design coordination, structure, utilities, and finish work that all need to align. We take that seriously because the quality of the finished space depends on the work being organized well from the start.

For a new home, the focus is on building a complete residence that matches the property and the owner’s goals. For an ADU, the work often centers on making the new space practical, efficient, and well integrated with the existing property. In both cases, the project benefits from construction management that keeps details connected instead of isolated.


Remodels and additions

Major remodels and additions often reveal more than visible finishes. Once work begins, the structure itself, the condition of the framing, the roof connection, or the foundation may need attention. That is why a general contractor matters on substantial residential projects. The work has to be coordinated across structure, systems, and finish layers so the result works as a whole.

Home additions can create much-needed space for bedrooms, living areas, offices, or expanded common rooms. Whole-house renovations can rework an older layout into a more usable home. We approach those projects with a practical mindset: understand what the house needs, plan the sequence, and build carefully.


Common questions

Do you take on larger residential projects in Portola Valley?

Yes. Portola Valley is part of our regular service area, and we focus on substantial residential construction such as new homes, ADUs, additions, major remodels, and deck work.

Can you help with a project that needs several trades?

Yes. We coordinate related work when a project calls for engineering, structural repair, roofing, foundation work, or other construction trades that need to be sequenced together.

Do you handle design-build work?

Yes. Design-build services are part of what we offer, especially when the project benefits from a more unified approach from planning through construction.

What kind of homes do you usually work on?

We work on substantial residential projects for homeowners who need careful planning and construction management, including new homes, additions, ADUs, and whole-house renovations.

Can you help if the project includes roof or structural work?

Yes. Roofing, rot repair, structural repair, foundation and concrete work, and related construction are all part of the services we provide when they are needed for the project.

How do I start a conversation about my project?

Reach out by phone or email and share a few details about the home, the property, and what you want the project to accomplish. From there, we can discuss the next practical step.


Start here

If you are planning a major residential project in Portola Valley, The McCarthy Company can help you think through the work and move toward a clear construction plan. We serve homeowners throughout San Mateo County and the San Francisco Peninsula from our base in La Honda, with a focus on projects that need careful management and solid craftsmanship.

Phone: +16507876991
Email: mccarthytech@yahoo.com

Available Services

Services in Portola Valley, CA

New Home Construction

New Home Construction

Custom new home construction for Woodside homeowners planning a significant residential build.

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ADU Construction

ADU Construction

Thoughtful ADU construction for Woodside homeowners planning lasting space with clear coordination.

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Home Remodeling

Home Remodeling

Thoughtful home remodeling for Woodside homeowners planning a major residential update.

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Home Additions

Home Additions

Thoughtful home additions for Woodside homeowners planning more space, better flow, and lasting value.

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Design-Build Services

Design-Build Services

Thoughtful design-build planning for major residential projects, from concept through careful construction.

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Whole House Renovation

Whole House Renovation

Whole-house renovation for Woodside homes that need careful planning, coordination, and lasting workmanship.

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Deck Construction & Replacement

Deck Construction & Replacement

Thoughtful deck construction and replacement for Woodside homeowners planning lasting outdoor living spaces.

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Kitchen Remodeling

Kitchen Remodeling

Kitchen remodeling for Woodside homeowners planning a clearer layout, better use, and lasting craft.

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Bathroom Remodeling

Bathroom Remodeling

Bathroom remodeling for Woodside homes, planned carefully and built for lasting use.

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Foundation & Concrete Work

Foundation & Concrete Work

Foundation and concrete work for Woodside homes built with careful planning and lasting structure.

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Rot Repair & Structural Repair

Rot Repair & Structural Repair

Careful rot and structural repair for Woodside homes with practical planning and lasting results.

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Home Rewiring

Home Rewiring

Electrical upgrades and home rewiring coordinated with major remodels, additions, ADUs, and whole-house renovations in Woodside and across the Peninsula.

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Finished home exterior with open space for website text.

Ready to Plan

Discuss Your Residential Project

If you are planning a new home, an ADU, an addition, or a major remodel, we can help you think through the scope and the best way to approach the work.