A new rear addition with a vaulted beamed ceiling and tall windows
General Contractor · Diamond Bar, CA

General Contractor in Diamond Bar - Written Fixed-Price Quotes, Permits Handled

Free on-site estimate and a written, line-item quote before any work begins. One contract, one crew, one accountable point of contact. Licensed, insured, permits handled.

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A single-story rear room addition with tall windows and a new patio
A second-story addition that matches the existing roofline
A walk-in shower with large-format tile and a built-in niche
A remodeled family room with new windows and a window seat
A stone counter, tile backsplash and open shelf after a kitchen remodel
A remodeled hall bathroom with subway tile and a floating vanity
A remodeled primary suite with built-in wardrobes and a window seat
New painted shaker cabinets with an organized deep drawer
Every visit starts with

Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled

Your dream remodel for as low as$199/month*On approved credit; ask for current terms
Get your free estimate

Fast, Reliable General Contractor Across Diamond Bar

Finding a general contractor in Diamond Bar who returns calls, shows up on schedule, and puts the real numbers in writing before work starts shouldn’t feel like a gamble. Bradford Remodeling operates on The Garrison Standard: a written price before any tool comes out, background-checked uniformed crews, and a 365-Day Done Right Promise in your hand when the job closes. Our crews know the hillside tracts, the post-tension slabs, and the LA County plan-check path that Diamond Bar projects run through. Curtis Lane leads our team, and the office answers live 24/7 at (903) 568-7222. Call for a free estimate, and you’ll get a straight number, not a sales pitch.

General contractor and worker reviewing construction plans in a home renovation in Diamond Bar, CA

Call (903) 568-7222

Why Bradford Remodeling Is Diamond Bar’s Preferred General Contractor Company

A wide opening with a new beam where the kitchen wall was removed

Diamond Bar homeowners call us because the scope, the price, and the guarantee are all in writing. No change-order surprises at the door, no allowance games, no crew you didn’t vet. We’ve built our local reputation on finishing work to the manufacturer’s spec and the inspector’s sign-off, then standing behind it for a full year. If something fails inside that 365-day window, we return and correct it at no charge. That’s The Garrison Code, and it applies to every kitchen, bath, addition, and ADU we touch here.

Scheduling from our Los Angeles office, our crews serve Diamond Bar directly, from the 91765 valley floor up into the 91789 hillside neighborhoods. When a homeowner off Diamond Bar Blvd or near Sycamore Canyon Park calls, the person answering knows the difference between a flatland rebuild and a slope-review project. That local knowledge changes how we scope the job and how we price it, honestly, before you sign.

Explore

Styles & brands we work with

Kitchen remodeling
Kitchen remodeling
Bathroom remodeling
Bathroom remodeling
Home additions & ADU
Home additions & ADU
Roofing
Roofing
Windows & doors
Windows & doors
Driveway & pavers
Driveway & pavers
Fence
Fence

Residential General Contractor in Diamond Bar

A residential general contractor in Diamond Bar handles the full build or remodel from demolition to final inspection. You need one when the project touches structure, plumbing rough-in, electrical, load-bearing walls, or anything requiring LA County permits. Most Diamond Bar remodels fall between $14,000 and $45,000 for a kitchen, $9,000 to $28,000 for a bathroom, and $45,000 to $130,000 for a home addition. The number lands where it lands based on what’s behind the walls, which in Diamond Bar often means cast-iron drains and post-tension slabs, not a generic tract-home interior.

Full Scope, One Point of Contact

We manage the permit set, the trades, the material deliveries, and the inspections. You get one contract, one written price, and one crew chief who knows the job end to end. No chasing three subs to find out why the tile guy didn’t show.

When the House Needs More Than a Patch

If your remodel uncovers a failed drain assembly under a 1970s bathroom slab, that’s a general contractor’s job, not a handyman’s. We pull the permit, open the floor, replace what’s rotten, and close it back to spec. That’s the difference between a repair that holds and one that fails inside a year.

Hire a General Contractor in Diamond Bar

If you want to hire a general contractor in Diamond Bar, the first question is not “how fast can you start.” It’s “what’s in writing before you start.” Bradford Remodeling answers that with a fixed-price contract, a written scope, and a material allowance schedule that reflects real Diamond Bar pricing for KraftMaid, Cambria, Kohler, and Moen. You’ll see the actual numbers for cabinets, counters, and tile before demo day, not after.

Written Price, No Door-Move Numbers

The price we give you is the price on the contract. If concealed conditions force a change, you approve the written change order before the work happens. No “we found something” conversations at the end of the day with a bigger invoice.

Licensed, Insured, and Vetted

Every Bradford technician is background-checked and uniformed. You know who’s walking onto your Diamond Bar property before the trailer opens. That standard is set at the Garrison Partners level since 2004, not left to individual jobs.

General contractor reviewing renovation blueprints with a client on a construction site in Diamond Bar, CA

Trusted Brands We Service in Diamond Bar

We install and service a documented roster of name-brand materials, so specs are traceable and warranties still mean something. KraftMaid and Wellborn cabinetry, Cambria and Caesarstone surfaces, Kohler and Moen fixtures, GAF and James Hardie exteriors, Therma-Tru doors, and Belgard hardscaping. These are not “equivalent” products from a supply-house clearance rack. For Diamond Bar homeowners, that means the cabinets you priced in the allowance line are the cabinets that arrive. Fast turnaround on materials is part of the contract, not a favor.

Before & after

See the difference

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Common General Contractor Problems We See in Diamond Bar Homes

  • Post-tension slab surprises. Diamond Bar’s hillside tracts were built on former dairy and orchard land, with expansive clay soils under many foundations. Cutting into a post-tension slab without locating the tendons can compromise the structure. We scan and locate before we cut, and we never do exploratory demo on a post-tension slab without that step.
  • Cast-iron drain rot in 1960s and 1970s homes. The original cast iron under many Diamond Bar bathrooms is near the end of its service life. A vanity swap turns into a drain replacement once the wall opens. We price for what we can see and write a clear change-order path for what we can’t.
  • Skipped hillside and slope review. Additions, retaining walls, and ADUs in the hillside tracts east of Diamond Bar Blvd must clear LA County plan check and slope review. Flatland nearby cities don’t face this. If your contractor quotes before the plan check, the number is fiction.
  • Underfunded material allowances. A $6,000 kitchen allowance won’t cover KraftMaid cabinets and Cambria counters in a Diamond Bar remodel. We set allowances to the actual market, using current local price sheets, not nationwide averages. You shouldn’t have to raid savings at the end of the job to cover the difference.

Pricing for General Contractor in Diamond Bar, CA

The table below reflects what we’re quoting for Diamond Bar work this year. These are honest ranges, tied to what we see in local homes and what LA County plan check requires here.

Project Diamond Bar Price Range
Kitchen Remodel $14,000 – $45,000
Bathroom Remodel $9,000 – $28,000
Home Addition $45,000 – $130,000
ADU Construction $90,000 – $220,000
Garage Conversion $30,000 – $80,000
Window Replacement $4,500 – $15,000
Roof Replacement $8,000 – $20,000

The spread exists because a 1970s hillside house with cast-iron plumbing costs more to open and rebuild than a 1990s flatland tract home. Slope review, retaining, and foundation condition are real cost movers here. Call (903) 568-7222 for a line-item quote on your specific scope. Estimates are free, and you’ll get a written price, not a range disguised as a quote.

We Also Serve Cities Near Diamond Bar

Bradford Remodeling serves Diamond Bar and the surrounding communities, including Walnut, Pomona, Chino Hills, and Rowland Heights. If you’re a few miles out and wondering whether we cover your street, call and ask. You can also see our General Contractor service details or learn more about our General Contractor in Diamond Bar coverage directly.

Serving Diamond Bar, CA - Our Local Coverage Area

We’re based in the Diamond Bar area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.

FAQs About General Contractor in Diamond Bar

Why Diamond Bar Chooses Bradford Remodeling

We set the standard for general contractor in Diamond Bar.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Diamond Bar

Getting your general contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your general contractor needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Diamond Bar - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local general contractor pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Diamond Bar Customers Say

Trusted by homeowners across Diamond Bar and surrounding areas.

★★★★★

"Replaced old windows and trim while redoing the kitchen. Clean finish work."

Ron F. · Verified customer
★★★★★

"Home remodel with a new floor plan. Handled structural work and permits without drama."

Gus R. · Verified customer
★★★★★

"Primary bath redo. Tile is straight, shower pan was flood tested, and the vanity fits perfectly."

Tricia S. · Verified customer

Ideas for every room in the house

Built-ins, window seats, family rooms and staircases: the changes that make a whole house work better.

Read our remodeling guides
A remodeled living room with built-in shelves around the fireplaceAn open kitchen and dining area after a remodelA freestanding soaking tub in a remodeled primary bathroomA whole-home remodel with the living, dining and kitchen areas opened upA galley kitchen opened up to the dining room with a new peninsulaA remodeled hall bathroom with patterned floor tile and painted walls

More remodeling services in Diamond Bar

Every project below starts the same way: a free on-site visit and a written price.

Getting started with Bradford

Every project starts with a conversation and a written price. Here is how to take the first step.

A project lead measuring a kitchen with the homeowner during a free estimate

Free on-site estimate

A project lead walks the job with you, measures it and hands you a written, line-item price. No obligation.

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A remodeling crew arriving at a home with lumber and tools

Find your local team

Each location is independently owned and works to the same written standard. Enter your ZIP code to reach yours.

A worker laying floor protection and a dust barrier before work starts

Read our written promise

What we promise on every job, written down, with the terms spelled out before any work starts.

Our promise

Current Offers

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Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

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Written Price Before Any Work Starts

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Included

Written Guarantee on Every Repair

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Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

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(903) 568-7222

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