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Brentwood living room after a whole-home remodel with a widened opening to the kitchen and new oak floors

Home Remodeling · Brentwood, CA

Home Remodeling Company in Brentwood, Los Angeles

A whole-home remodel lets you keep a Brentwood house you love and replace everything that no longer works: the layout, the systems and the finishes. We plan it as one project, permitted once.

Since 1984License #4391664.9/5 client ratingDesign, permits & construction

Hiring a home remodeling company in Brentwood, Los Angeles usually means you have decided to stay. You like the street, the schools, the trees and the lot, but the house itself has a dark layout, a 1960s electrical panel, rooms that never connect to the garden and three decades of piecemeal updates. A whole-home remodel fixes all of it as one coordinated project instead of a series of disconnected jobs.

Brentwood's housing stock makes this a common path. Many 1930s to 1950s traditionals and postwar ranches have solid bones and good proportions. They just need their systems, layout and finishes rebuilt around how a family lives now.

What a complete home remodel in Brentwood usually covers

The scope varies, but a typical whole-house project here includes several of these:

  • A reworked floor plan that opens the kitchen to living and family areas
  • Kitchen and all bathrooms remodeled together
  • Full rewiring and a new electrical service, often sized for induction cooking, EV charging and heat pumps
  • Repiping supply lines and replacing drain lines under the house
  • New heating and cooling, with ducts rerouted or replaced
  • Insulation in walls, attic and raised floors
  • New windows and exterior doors
  • Refinished or replaced flooring, new interior doors, trim and paint throughout

Some owners add a modest bump-out or reroof at the same time. Combining it all under one permit saves duplicated work and inspections.

Good whole-home remodels in Brentwood also respect what the house already does well. A Colonial's center hall, a Spanish house's thick plaster walls and arched openings, or a ranch's long, low connection to the yard are worth keeping. We look for what gives the house its character and design the changes around it, so the finished home feels updated rather than gutted and replaced.

Updated exterior of a Brentwood traditional home with new windows, fresh siding and a restored front porch

Where Brentwood houses show their age

Electrical

Homes from the 1930s and 1940s sometimes still have sections of knob-and-tube wiring or ungrounded circuits. A 100-amp panel is common and is not enough for a modern all-electric kitchen or a heat-pump system.

Plumbing

Galvanized steel supply lines corrode from the inside and reduce pressure. Cast iron and clay drains crack, and root intrusion in the sewer lateral is common under Brentwood's mature trees. We recommend a camera inspection of the lateral before a whole-home remodel.

Envelope

Original single-pane windows, uninsulated walls and leaky ducts make older houses expensive to heat and cool. Opening the walls is the right moment to fix all three.

Structure

Older raised foundations may lack anchor bolts or cripple wall bracing. A remodel that opens floors and walls is the most economical time to add seismic reinforcement.

Permits for remodeling a home in Brentwood

Brentwood is within the City of Los Angeles, so LADBS issues the building permit and performs inspections. For a whole-home remodel, the permit set includes architectural plans, structural engineering for any wall removals or new openings, and Title 24 energy compliance for the systems being replaced. Our article on California energy code for remodels explains what gets triggered.

Two things are worth knowing early. If the project adds floor area, it has to fit the city's Baseline Mansionization or Baseline Hillside limits for your lot. And if the remodel removes most of the existing structure, the city may treat it as new construction, with different rules than a remodel. We review your plans against both before submittal. North of Sunset, new exterior work in the Very High Fire Hazard Severity Zone also has to meet wildland-urban interface standards. LA City Planning is involved only if the project needs a discretionary approval.

Moving out or phasing the work

Whole-home projects go fastest with the house empty. Crews can open every wall at once, inspections cover the whole house in one visit, and there is no need to keep a kitchen and a bathroom working. If moving out is not practical, we can phase the remodel: for example, finishing a bedroom wing and a bathroom first, then moving the family into that part while the kitchen and living areas are rebuilt. Our article on phased remodeling explains how to sequence it so later phases do not undo earlier ones.

Brentwood house mid-remodel with walls opened for new wiring, plumbing and insulation

What affects the budget

For a sense of how a typical renovation budget divides by category, see our home renovation budget breakdown. For your house, the main variables are:

  • How many walls move and whether any are structural
  • Whether systems are repaired or fully replaced
  • Number of kitchens and bathrooms in the scope
  • Window count and type, especially custom sizes to match older openings
  • Finish level across cabinetry, stone, tile, flooring and fixtures
  • Seismic retrofit and foundation work
  • Living in the house during construction versus vacating

Timeline factors

Design and permitting take the first stretch, and their length depends on how much structural work is involved and how many plan check corrections come back. Construction time depends on whether the work is done at once or phased, inspection scheduling, the number of trades involved and lead times on cabinets, windows and special-order finishes. Our home remodel timeline article walks through a typical sequence.

Mr Build's whole-home remodeling scope

Mr Build has transformed more than 130 homes since 1984. On a Brentwood whole-home remodel, we handle design, architectural plans, engineering, LADBS permits, demolition, structural work, all mechanical, electrical and plumbing trades, and every finish, under one fixed, detailed written scope with a dedicated project manager. The work moves through our five steps: consultation, design and permits, selections, construction and final walkthrough. Learn more about our complete remodeling service.

Our process

How a project with Mr Build works

Five steps, one team and one point of contact from the first visit to the final walkthrough.

  1. Consultation

    We meet at your home, walk the space, and talk through goals, priorities and budget before anything is drawn.

  2. Design & Permits

    Plans, engineering and energy calculations are prepared and submitted, and we handle plan-check corrections with the city.

  3. Selections

    You choose finishes, fixtures and materials with our guidance, so long-lead items are ordered before they can hold up the schedule.

  4. Construction

    A dedicated project manager runs the trades, inspections and schedule, with regular updates so you always know what's next.

  5. Final Walkthrough

    We walk every room with you, finish the punch list, close out the permit, and hand over warranties and manuals.

Client reviews

What our clients say

★★★★★

“Mr Build handled our complete home remodel from start to finish. Communication was excellent, the workmanship was high quality, and every room now feels more modern, comfortable, and functional.”

Michael S.Studio City, CA
★★★★★

“Mr Build transformed our outdated kitchen into a beautiful, functional space. The team was professional, organized, and kept us updated throughout the project. The finished kitchen exceeded our expectations.”

Jennifer L.Los Angeles, CA
★★★★★

“We hired Mr Build for our bathroom remodel and couldn't be happier with the results. They helped us improve the layout, choose great finishes, and completed everything with impressive attention to detail.”

David R.Encino, CA

FAQ

Home Remodeling in Brentwood: common questions

Is it better to remodel my whole Brentwood house at once or in phases?

Doing it at once is usually faster and less expensive overall, because walls open once, trades mobilize once and one permit covers the work. Phasing makes sense if you need to stay in the house or spread the cost out. If you phase, plan the infrastructure first, so later phases do not undo finished rooms to run new wiring or pipe.

Will a whole-home remodel trigger energy-code upgrades?

Parts of it will. California's Title 24 energy standards apply to the systems and assemblies you alter: new windows, newly insulated walls and ceilings, replaced HVAC equipment and ducts, lighting and water heaters must meet current requirements. Work you leave untouched generally does not have to be brought up to date. We include the energy compliance documents in the permit set.

Do I need to move out during a whole-home remodel?

For a true whole-home remodel, most families do. When kitchens, bathrooms, electrical and plumbing are all out of service at the same time, living there is difficult and slows the work. With phasing, staying is possible but adds cost and time. We help you weigh the trade-off before construction starts.

Can I change the outside of my Brentwood house during a remodel?

Yes, within the zoning rules. New windows, siding, roofing and entries are common. Adding floor area must fit within the city's floor-area limits, and on hillside lots or in the fire zone, new exterior materials must meet wildland-urban interface standards. Some streets also have overlays or historic considerations, which we check at the start.

How do you price a whole-home remodel?

From drawings and a site inspection, not a per-square-foot figure. We break the scope into areas and trades, list allowances for items you have not selected yet, and give you a fixed price on that written scope. If hidden conditions are likely, such as old plumbing under the floor, we say so in advance and explain how they will be handled.

From the blog

Helpful reading

Homeowner and contractor comparing kitchen tile samples on a countertop during a site meeting

Construction & PlanningOctober 19, 2026

How to Communicate With Your Contractor During a Remodel

Good contractor communication is a system, not a personality match: one contact on each side, a set meeting, written summaries and signed change orders. Here is how to set it up.

Floor-to-ceiling plastic containment wall with a zipper door sealing off a kitchen remodel

Construction & PlanningOctober 14, 2026

Can You Live at Home During a Remodel? How to Decide

Many families can stay home during a remodel if the work is contained and a kitchen and bathroom stay usable. Here is how to decide, what to require from your contractor and when to move out.

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Let's talk about your home

Share a few details and we'll set up a visit. We'll look at the space, listen to what you want, and explain how permits, schedule and budget would work for your project.

  • On-site visit with an experienced builder
  • Clear written scope and pricing
  • Design, engineering and permits handled for you

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