A Seedling company - serving Pasadena, CA
A new rear addition with a vaulted beamed ceiling and tall windows
Home Addition Contractor · Tujunga, CA

Home Addition Contractor in Tujunga - Design, Permits and Build Under One Contract

We handle the design, the engineering, and the city permit, then build it. One contract, one crew, one accountable point of contact. Free feasibility check on your lot before you commit.

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Free Estimate on SiteCalls Answered by a Live Person, 24/7Background-Checked TechniciansA Local Team in Pasadena
A second-story addition with a balcony, matched to the original house
A single-story rear room addition with tall windows and a new patio
A new two-story ADU over a garage
An attached garage converted into living space
A compact kitchen inside a new ADU
A kitchenette inside a converted garage
A new modern ADU with wood cladding
A new bathroom inside a converted garage
Every project starts with

A free site visit, a check of what your lot allows and a written, line-item price.

Get your free estimate

Fast, Reliable Home Addition Contractor Across Tujunga

Adding square footage to a Tujunga home means working with hillsides, fire-zone codes, and narrow access roads that flatland contractors never have to think about. A home addition in Tujunga typically runs $180 – $420 per square foot depending on whether you’re building out, up, or into a slope, with most full additions landing between $85,000 and $240,000. We’ve managed garage additions off Foothill Boulevard, bathroom additions in 91042, and bump-outs on lots where the only access was an 8-foot path. If you’re planning a room addition, second story, sunroom, or garage conversion in Tujunga, call (626) 657-5461 and we’ll give you a written price before any work starts.

Call (626) 657-5461

Why Seedling ADU Pasadena Is Tujunga’s Preferred Home Addition Contractor Company

A second-story addition that matches the existing roofline

Tujunga homeowners don’t need a contractor who’s surprised by a fire-zone inspection or confused by a hillside grading limit. Our Home Addition Contractor team knows what Tujunga requires before the first permit is pulled. When a bathroom addition needs ember-resistant vents because the lot sits above Foothill Boulevard in a High Fire Hazard Severity Zone, we already have the right materials specified. When a second-story addition requires a caisson foundation because the slope drops 18 feet from front to back, that’s in the written quote, not a change order three weeks in.

Every project gets the full Cedarwell Care Promise. Shoe covers and drop cloths inside your home. Pet-safe products where there’s a choice. A photo of the clean-up before the crew leaves each day. And a live person answers when you call, 24/7, during an active build. Ben Ortega leads our Tujunga projects personally, walking each site before pricing so the number reflects real access conditions, real foundation needs, real fire-zone materials.

We carry the 365-Day Done Right Promise on every addition. If it’s not done right, we make it right. That’s in writing.

Garage Addition Contractors in Tujunga

Garage Addition Contractors in Tujunga work with a housing stock that runs from 1920s cabins on raised foundations to mid-century ranch homes with detached garages originally built for one car. A garage addition here usually means converting or expanding an existing structure into living space, adding a bedroom or home office above it, or building a new attached garage with a room behind it. Tujunga prices for garage additions typically run $60,000 – $130,000 depending on whether you’re converting existing square footage or pouring new foundation.

Hillside Garage Work Off Foothill Boulevard

On a steep lot off Foothill Boulevard, our crew managed a garage addition using a caisson foundation and a narrow 8-foot access path. We staged materials at the street, coordinated with the neighbor for party-wall notice, and kept the hillside site clean while meeting Hillside Ordinance grading limits. That’s the difference between a builder who’s done Tujunga before and one who hasn’t.

Fire-Zone Materials on Garage Additions

Any new garage addition above or within the wildland-urban interface needs Class A roofing, ember-resistant vents at the soffits, and exterior cladding rated for high fire severity. These requirements add roughly 5 – 10% to material costs compared to flatland builds, so our written quotes include them from the start.

Bathroom Addition Contractor in Tujunga

A new sunroom addition with three walls of windows

A Bathroom Addition Contractor in Tujunga has to think about plumbing runs on raised foundations, sewer lines that sometimes connect to aging septic systems, and the limited crawl space under many 1920s-to-1970s homes. Bathroom additions in Tujunga typically cost $35,000 – $75,000 for a full bath with standard finishes, and $22,000 – $40,000 for a compact powder room or half bath. The price depends on whether you’re tucking a bathroom into existing footprint or extending the foundation outward.

Adding a Bathroom to a Main-Floor Bedroom

For families turning a three-bedroom into a four-bedroom with a primary suite, we run supply lines through the raised foundation, tie into the existing waste stack where possible, and spec pet-safe caulks and adhesives throughout. The work usually takes four to seven weeks with permits, inspections, and finishes.

Second Bathroom for Growing Families

If you’re adding a kids’ bathroom off a hallway or above a garage, expect framing, drywall, tile, and fixtures, plus a vent fan sized for Tujunga’s hot, dry summers. We schedule the noisy work around school hours and keep drop cloths over floors in the rest of the house all day.

Trusted Brands We Service in Tujunga

We work hands-on with the brands serious addition and ADU buyers research before calling anyone. We specify Dvele and Cover panels where a client wants a prefabricated shell dropped onto a Tujunga lot, and James Hardie siding plus Abodu framing details when fire-zone cladding and panelized construction make the most sense. For Tujunga homeowners, that means shorter on-site framing time, fewer deliveries blocking narrow driveways, and materials that meet High Fire Hazard Severity Zone requirements out of the box. We order directly from these manufacturers for Tujunga jobs, so there’s no markup from a middleman and no week-long wait for the right panel to arrive.

Common Home Addition Contractor Problems We See in Tujunga Homes

  • Underestimated hillside foundation costs. When a flat-priced quote doesn’t include caissons or grade beams, the budget blows up mid-project. We price the foundation based on the actual slope before work starts.
  • Failed fire-zone inspections. Tujunga additions need Class A roofing, ember-resistant vents, and non-combustible exterior cladding. If the materials aren’t right on the first inspection, you pay for a retrofit and lose weeks.
  • Blocked driveways and neighbor complaints. On lots with one narrow access path, equipment parked in the wrong spot can trigger work-hour violations and a very unhappy neighbor. We stage materials at the street and coordinate parking before day one.
  • Septic and sewer surprises on older lots. Many Tujunga homes built before 1970 still run on septic or have aging drain lines. A bathroom addition can uncover a failed leach field, which affects the permit path and the price.

Pricing for Home Addition Contractor in Tujunga, CA

A home addition in Tujunga runs roughly $180 – $420 per square foot. A simple bump-out of 200 square feet might land near $48,000; a full second-story addition on a hillside lot can pass $240,000. The biggest variables are foundation type, access, and fire-zone materials. If your lot drops more than 10 feet front to back, expect caissons or grade beams to add $15,000 – $40,000. If your addition sits in the High Fire Hazard Severity Zone, Class A roofing and ember-resistant vents add 5 – 10% to the shell cost. We give every Tujunga homeowner a written line-item price before any work starts. Call (626) 657-5461 for a free estimate, no obligation, no surprises added after the crew arrives.

We Also Serve Cities Near Tujunga

If you’re in Tujunga or just across the boundary, we’re close by. Our crews also serve Glendale, Pasadena, San Marino, and Alhambra, including hillside lots with the same fire-zone and access challenges you’ll find above Foothill Boulevard. Dispatch and scheduling are coordinated from the brand’s Los Angeles office, and crews serve Tujunga locally.

Serving Tujunga, CA - Our Local Coverage Area

We’re based in the Tujunga 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 Home Addition Contractor in Tujunga

Why Tujunga Chooses Seedling ADU Pasadena

We set the standard for home addition contractor in Tujunga.

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 Tujunga

Getting your home addition contractor handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your home addition 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 Tujunga - 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 home addition 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 Tujunga Customers Say

Trusted by homeowners across Tujunga and surrounding areas.

★★★★★

"Built a backyard unit for us. For a months long project the crew kept the site remarkably tidy, swept daily, and were respectful of our neighbors and our dog. Beautiful result."

Charlotte Vey · Verified customer
★★★★★

"Backyard cottage build. For a long project they kept the site remarkably tidy and were respectful of our neighbors and our dog. Swept the driveway every evening."

Leona Pfeiffer · Verified customer
★★★★★

"Garage conversion into a studio. They sealed off the work area so dust didn't get into the house, and cleaned up every day before leaving. Calm, careful team to have around."

Darnell Hobbs · Verified customer

Small homes that live large

Vaulted ceilings, compact kitchens and private decks: the details that make an ADU feel like a home.

Read our ADU guides
The living room inside a new ADUA bedroom and desk inside a converted garageThe bedroom inside a new ADUThe bathroom inside a new ADUA small deck outside a new ADUA former garage converted into a guest house

More ADU services in Tujunga

Every build below starts the same way: a free site visit and a written price.

Getting started with Seedling in Pasadena

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

A project lead measuring a backyard ADU site with the homeowner

Free site visit

A project lead walks the lot with you, checks what it allows and hands you a written, line-item price. No obligation.

Book a site visit
A building crew carrying lumber to a backyard ADU site

Your Pasadena team

A local crew that works across Pasadena and the towns around it, to the same written standard as every Seedling location.

Areas we serve
A worker protecting the lawn before an ADU build starts

Read our written promise

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

Our promise

Ready for Home Addition Contractor in Tujunga?

Call now for a free estimate - or request one below. Licensed, insured, and here with fast after-hours help in Tujunga.

(626) 657-5461

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