Room addition framed and sheathed: home additions by J.O. Construction in Chino, CA

Home Additions in Chino, CA

Need more house, not a new house? J.O. Construction builds room additions around Chino, from a single bedroom to a 450 sq ft expansion. Call (951) 436-6568.

Call (951) 436-6568Send us your project

Rebar and vapor barrier set for an addition foundation
Foundation ready
Kitchen with oak cabinets and a white peninsula
New kitchen space
Bathroom vanity with green tile and brass fixtures
Primary bath

What is included

  • A new foundation tied into the old one
  • Framing
  • A roof that matches
  • The inside finished to blend with the house
  • Setbacks and lot coverage checked with the city first

The job, in three frames

How the job runs with J.O. Construction, in the order it happens.

  1. Footing trench along the back of a stucco house with rebar doweled into the existing foundation

    Step 1: Tie into the house

    The new footing is doweled into the existing foundation so the two move as one.

  2. Room addition framing tied into the back of an existing house, new rafters meeting the old roofline

    Step 2: Frame and roof to match

    Walls framed and the new roof tied into the old roofline.

  3. Inside a new room addition with fresh drywall, a wood floor matched to the existing hallway and a new window

    Step 3: Finish to blend

    Drywall, floors and windows matched, so the room looks like it was always there.

What an addition includes

New foundation tied to the old one, framing, a roof that matches, and the inside finished to blend with the house. The tie-in is where a good addition and a bad one differ.

Additions we have built near Chino

In Fontana we added a primary suite to the house. Another project added 450 sq ft for a bigger kitchen and a laundry room. Deciding between adding on and a separate unit? We have built both, including detached units in Riverside.

What Chino owners should check first

Setbacks and lot coverage decide how far you can build out. We check those with the city before anyone draws plans.

Is this the right call for your project?

Call us for this when

  • You need more room but want to stay in the house
  • You want a bigger kitchen, a laundry room or a primary suite
  • The lot has room to build out within setbacks

Pick something else when

  • You want shade and outdoor space, not a room: patio covers
  • You want a separate unit you can rent: that is an ADU, and we will walk you through it when you call
  • You want new finishes in rooms you already have: that is remodeling, which we do not take on

After the final inspection: keeping it in shape

  1. Watch the seam the first year

    A hairline crack where new drywall meets old is normal settling. We can tape it once it stops moving.

  2. Keep gutters clear at the tie-in

    Where the new roof meets the old is where water collects. Keep that gutter clean.

  3. Keep the permit with the deed papers

    An addition changes the square footage on record. The finaled permit proves it.

Recent work from our crews

Large custom kitchen with a wood ceiling and long island
Kitchen, Riverside
Stucco patio cover addition with stone column bases
Patio cover, Fontana
Arched iron front door seen from inside the entry
Entry, Whittier
Double vanity with vertical green tile and brass faucets
Vanity, Fontana

More on our Instagram, where we post each stage as it happens.

Listed under all services. Related: patio covers. See everything from your general contractor in Chino.

What clients sayReal words from Google, unedited.
D
David Parish
★★★★★a year ago

Jimmy and his team did an amazing job with our patio cover. The work was very professional and looks amazing! Many people in the community have remarked upon how great it looks and have even asked for a referral.

P
Patrice Peterson
★★★★★9 months ago

We hired Jimmy for a garage to ADU conversion project. The project was completed quickly, with diligent work from Jimmy's team, resulting in a finished product that exceeded our expectations!

Home Additions questions from Chino owners

Is it cheaper to add on or build an ADU?

It depends on the goal. An addition shares walls and utilities with the house. An ADU is a separate unit you can rent. We price both if you are deciding.

Will the addition match my house?

Yes. Matching the roof line, stucco texture and windows is part of the job, so the addition looks like it was always there.

More room, same address.

Tell us what room you are missing.

Mon to Fri, 7 AM to 5 PM

Large custom kitchen with a wood ceiling and long island, built by J.O. Construction
Start a conversation

Thinking about a project? Let's talk.

Answer a few quick questions and Jimmy will call you back to talk it through. No pressure and no obligation.

  • Jimmy runs your job from the first call to the final inspection
  • Licensed and bonded, CA #1057456
  • Design, permits and construction under one roof
★★★★★ 4.8 on Google · 21 reviews

Rather just talk to someone? Call (951) 436-6568
Mon to Fri, 7 AM to 5 PM

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Free, no obligation · CA Lic. #1057456