ADU Company in Crestline — 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.

✓ Licensed & Insured ✓ Written quotes ✓ Permits handled
Schedule Free Estimate

Call to schedule your free estimate

🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates

ADU Company in Crestline, CA

Kitchen remodeling in Crestline means working with mid-century mountain cabins, steep forested lots, and freeze-thaw winters that punish cheap materials. Colonial ADU Builders has served Crestline since 2011, and we handle everything from full kitchen teardowns to the interior finish on a new ADU, including the cabinetry, countertops, and plumbing rough-in. For any kitchen or ADU question, call (877) 265-9846.

Call (877) 265-9846

Why Crestline Homes Are Different

Crestline sits at roughly 4,600 feet inside the San Bernardino National Forest, and the housing stock reflects it. Most homes are mid-century or 1960s – 80s cabins, often on pier-and-beam or raised foundations cut into sloping lots near Lake Gregory. That means floor plans built before open-concept layouts, undersized electrical panels, and plumbing that freezes if a vent or pipe sits too close to the crawlspace edge. Snow loads matter here. A roof that shrugs off rain in the valley can fail under a February snowpack, so any ADU or kitchen project that touches an exterior wall has to account for the roof system above it. Heavy pine debris plugs gutters and finds its way into soffit vents. And wildfire season is not theoretical: ember-resistant vents, tempered glass in certain exposures, and noncombustible siding details are part of the conversation on nearly every permit. These conditions change how we scope a kitchen remodel or an ADU shell, from insulation choices to the way we flash a new range hood exhaust.

Our Main Crestline Services

Two services dominate the calls we take from Crestline homeowners: full ADU construction and standalone bathroom remodeling, which also serves as the interior finish for the ADU shells we build.

ADU Builders in Crestline

Detached ADUs here face forest-to-code realities: Chapter 7A wildfire construction rules, tree-removal and defensible-space clearing, and leach-field setbacks that often dictate where a unit can physically sit. We match each lot to the right construction method – modular, panelized, shed-conversion, or site-built – then handle permits, foundation, shell, and interior finish under one contract. On Lake Gregory parcels, the septic system is usually the deciding factor, not the property line. For the full breakdown, see ADU Builders in Crestline.

ADU Builders in Crestline

Bathroom Remodeling in Crestline

Bathroom remodels in Crestline frequently start with the same underlying problem: a 1960s cabin bathroom with a floor that has settled, a vent fan that dumps into the attic, and supply lines that run through an uninsulated crawlspace. Freeze-protected plumbing is not optional at this elevation. We handle everything from shower pan replacement to full re-pipe, and because we finish our own ADU interiors, the same crew that builds a new unit also does the bathroom inside it. See Bathroom Remodeling in Crestline for the complete scope.

Bathroom Remodeling in Crestline
Need help today?Fast, friendly service and a no-obligation free estimate.

Call (877) 265-9846

What happens when you call

  1. 1
    A real person answersNo phone trees — you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Kitchen Remodeling in Crestline

Kitchen Remodeling in Crestline

Kitchen remodeling in Crestline usually means opening up a closed-off 1960s or 70s cabin kitchen, fixing the electrical panel to handle modern appliances, and protecting everything against mountain winters. A newer furnace in the living room does not help when supply lines run under a pier-and-beam floor with gaps in the skirting. We work from foundation to finished kitchen – one team, one contract – and because we build ADUs, we also handle the kitchen inside a new unit, from rough-in to cabinet installation. That is the kind of scope we do every week through our Kitchen Remodeling work.

Full Kitchen Remodel

Signs you need it

Appliances have tripped the same breaker for years, the cabinets are MDF swollen from humidity, and the layout still assumes one person cooks while everyone else stays out.

What it costs in Crestline

A full kitchen remodel in Crestline typically runs $42,000 – $85,000 depending on cabinet grade, appliance selection, and whether walls move.

How we do it

We start with a site walk to check framing, electrical service, and crawlspace conditions, then produce a fixed-price plan, pull the permit, and run demo, rough-in, cabinetry, counters, and finish trim with in-house crews.

Kitchen Cabinet Upgrade

Signs you need it

The cabinet boxes are solid wood and worth keeping, but the doors are delaminating and the layout wastes the only usable wall in the room.

What it costs in Crestline

Cabinet refacing or replacement in Crestline typically runs $12,000 – $28,000 depending on door style, hardware, and whether boxes need modification for new appliances.

How we do it

We measure the existing boxes, order or build doors to fit the as-built dimensions – which matter more on sagging cabin floors – and install them with soft-close hardware and painted or stained finishes that match the house.

Kitchen Countertop Replacement

Signs you need it

The laminate is peeling at the seams, or the tile counter has cracked grout and you want a surface that can handle daily use for another twenty years.

What it costs in Crestline

Countertop replacement in Crestline typically runs $4,000 – $9,500 including fabrication, edge treatment, sink cutout, and install.

How we do it

We template the existing cabinets after leveling them – critical on older mountain floors – then fabricate and install the new surface, reconnecting the sink and plumbing the same day.

What Kitchen Remodeling Costs in Crestline

Item Typical range in Crestline
Full kitchen remodel $42,000 – $85,000
Cabinet upgrade or refacing $12,000 – $28,000
Countertop replacement $4,000 – $9,500

Prices in Crestline run higher than valley-floor work because of snow-load framing, crawlspace access, and the extra time required for permits in a fire-prone mountain zone. We write fixed-price contracts with no change orders, so the number we quote is the number you pay.

How long does a kitchen remodel take in Crestline?

A full kitchen remodel in Crestline typically takes 5 – 8 weeks from demo to final walkthrough. Permit review at elevation can add 1 – 2 weeks, and winter weather occasionally delays material delivery. Call (877) 265-9846 for a schedule based on your specific scope.

Will my Crestline kitchen remodel raise my home’s wildfire insurance?

It can, but often the opposite: bringing a kitchen up to current electrical code and adding ember-resistant venting can help with some carriers. We document every upgrade for your insurer. Call (877) 265-9846 to discuss what to expect for your lot.

Brands We Service in Crestline

We specify Plant Prefab for high-performance panelized shells where wildfire hardening is the priority, and we use Tuff Shed for garage-conversion and shed-based ADU builds. James Hardie fiber-cement cladding is our default exterior for fire resistance and freeze-thaw durability. For a look at the full range, visit our brands.

Pricing for ADU Company in Crestline, CA

Service Typical range in Crestline
Full kitchen remodel $42,000 – $85,000
Kitchen cabinet upgrade $12,000 – $28,000
Kitchen countertop replacement $4,000 – $9,500
Bathroom remodel (full) $18,000 – $38,000
Bathroom remodel (guest/half) $9,000 – $18,000
ADU shell (prefab, no interior) $95,000 – $165,000
ADU full build (site-built, turnkey) $185,000 – $285,000
ADU garage conversion $130,000 – $185,000
ADU interior finish only $60,000 – $95,000

In Crestline, the two biggest price drivers are site work – tree removal, piers or retaining walls on slope, septic upgrades – and the wildfire-hardening requirements that add to the shell cost before a single cabinet goes in. Every quote we write is fixed, itemized, and tied to a permit set, so there are no surprise change orders halfway through the job.

Neighborhoods We Serve in Crestline

Our ADU and kitchen crews work throughout Crestline and the 92325 ZIP, from the flat lots near Lake Gregory’s eastern shore to the steep parcels off Crest Forest Drive and in the Upper Crestline neighborhoods. Response from our mountain-ready team is usually within 2 – 3 business days for an estimate visit.

  • Lake Gregory area
  • Crest Park
  • Valley of Enchantment
  • Top Town / Upper Crestline
  • Dart Canyon

Service Area – Cities Near Crestline

We regularly take on kitchen and ADU work in Lake Arrowhead, CA where lakefront lots come with their own setback puzzles, down into San Bernardino, CA for flat-lot site-built ADUs, over to Highland, CA for newer tract homes with HOA rules, and across to Muscoy, CA for larger rural parcels with well and septic constraints.

Serving Crestline, CA — Our Local Coverage Area

We’re based in the Crestline 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 ADU Company in Crestline

Ready to get started? Free estimates · Written quotes before work starts response in Crestline
Call (877) 265-9846

What happens when you call

  1. 1
    A real person answersNo phone trees — talk to a local adu 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 Crestline Customers Say

★★★★★ 4.8 from 4+ reviews

"Garage conversion to a one bedroom unit. He handled the plans, the city submittal, and every round of corrections. Took six months from first meeting to final inspection and he never once made the permit process my problem."

— Christine Kim

"Detached unit in the back yard. Utilities trenched, separate meter, and it passed final on the first inspection."

— Todd Rhodes

"Unit came out great and the tenant is happy. The timeline ran long, largely because of how slow the city was on plan check, though a couple of the delays were scheduling on their end."

— Elena Torres

How It Works in Crestline

Getting your adu handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your adu needs and we provide an upfront, transparent quote — no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Crestline — 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.

Request a Free Estimate

Tell us what's going on in Crestline — we'll get back to you fast. No obligation.

When you send us your details, you acknowledge our Privacy Policy and agree to be contacted by phone, text, or email regarding your project, including by the service partners who may complete the work.

Prefer to text? Text Us
Call Now - 24/7 Dispatch
Areas We Serve
Call Now - 24/7 Dispatch