Difficult homes, built beautifully.
Kleen builds custom homes, ADUs, and historic restorations across LA — Spanish Revivals, Mills Act, hillside builds, and architecturally ambitious projects that demand true craft.
We build the home of your dreams so every day feels like heaven.
Hard, beautiful work — done right.
Kleen was built around a simple idea: the standard stigma that surrounds builders doesn't have to exist. With over 23 years of experience in Los Angeles, every decision we make is filtered through the client — their home, their life, their sanity.
It isn't about cutting corners or chasing the next job. It's about obvious communication, real care, and delivering the wow factor from day one — backed by an award-winning client services team and a no-excuse approach to every commitment we make.
Our storyAward-winning client services. No-excuse delivery.
Our standard is recognized by the people who measure it — homeowners, architects, and the industry's most respected names.
- HouzzTop ContractorBest of Service
- Forbes1000 Fastest-GrowingCompanies in America
- Best of LAClient ServicesAward Winner
- BBBA+ AccreditedBuilder
Built for the homes that demand true craft.
Luxury Custom Homes
Ground-up custom residences engineered for difficult lots, hillsides, and discerning architects.
Spanish Revival & Historic
Faithful restorations of Spanish, Mediterranean and Mills Act homes — preserving character with modern systems.
Custom ADUs
Architect-grade accessory dwelling units that add real value, livability, and rental potential to your lot.
Mills Act, Spanish Revival, and the homes that built LA.
Restoring a historic property is its own discipline — preservation boards, original materials, code retrofits, hidden conditions. We've been through it. We coordinate with HPOZ, your architect, and the city so you don't have to.
- ✦Mills Act consultation & compliant scopes
- ✦Authentic stucco, plaster, tile and ironwork
- ✦Seismic retrofits & modern systems behind original walls
- ✦HPOZ permitting and historic resource navigation
On time. On budget. Or it's free.
We sign it in writing. A fixed schedule, a fixed price, and an award-winning client services team that answers every call. If we miss a milestone we own, you don't pay for it. No excuses — just the standard your home deserves.
A disciplined process for ambitious homes.
Four stages, transparent pricing, weekly reporting, and one phone number that always picks up. No surprises, no excuses.
See the full process- 01
Consultation
We walk the property, listen to your vision, and tell you honestly whether we're the right builder for it.
- 02
Pre-Construction
Architect coordination, real budgeting, fixed-price schedule, full scope alignment before a single permit is pulled.
- 03
Construction
A dedicated PM, weekly walkthroughs, weekly reports. You always know what's next, what's done, and what it cost.
- 04
Closeout & Warranty
Punch-list to perfection, full document handover, and a real warranty backed by a real company.
"We interviewed nine builders for our 1924 Spanish. Kleen was the only one who walked the house and immediately knew what to look for. They finished a week early, on budget, and our architect now recommends them to everyone."
Homeowners who trusted us with everything.
A home is the most personal thing a family owns. These are the words of people who handed us their keys — and what it felt like to work with us every day after.
“They treated our home — and our family — with real respect. Crews arrived when they said they would, cleaned up every single day, and never once made us feel like we were in the way of the work.”
“The price we signed is the price we paid. Every allowance, every change order, every line item was explained before anyone picked up a hammer. No surprise invoices, ever.”
“What sold us was the honesty. They told us one part of our wish list wasn't worth the money and showed us a better way to spend it. You don't forget a builder who talks you out of spending more.”
“Weekly reports, photos, and a project manager who actually answered the phone. After a bad experience with our first contractor, Kleen restored our trust in the whole industry.”
“Our 1926 home had hidden dry rot behind the original plaster. They documented it, priced it fairly, and absorbed the schedule hit themselves. That's integrity you can't fake.”
“I'm an architect, and I refer them without hesitation. They protect the design intent, respect the neighbors, and their punch list was the shortest I've seen in twenty years.”
- 23+Years building in LA
- 100%Licensed, bonded & insured
- A+BBB accredited rating
- 1 DayResponse time, guaranteed
No mystery pricing. No surprises.
Trust & Track Record
Why should we trust Kleen with our home?
23+ years of building in Los Angeles, an A+ BBB accreditation, Houzz Top Contractor recognition, and a client services team that has won awards for one reason: we answer. We are fully licensed with the CSLB, bonded, and carry general liability and workers' compensation coverage — and we'll email you the certificates before you ever sign anything.
Can we speak to past clients and see finished work?
Yes, always. We'll connect you with homeowners whose projects match yours in size, style, and complexity — including at least one where something went wrong, so you can hear how we handled it. We'll also walk you through a completed home and an active jobsite in person.
What happens when something unexpected is found?
Older LA homes hide things: dry rot, failed framing, unpermitted work, ancient plumbing. When we find it, you get photos, a written explanation, options with real numbers, and time to decide. We never do hidden work and bill for it afterward.
Respect for You, Your Home & Your Neighbors
What does 'respect' actually look like day to day?
Crews arrive within a stated window and leave when they say. Floors, stairs, and finishes are protected before work begins. The site is broom-clean at the end of every day. No music that carries past your property, no smoking, no profanity, no wandering through rooms outside the scope of work.
We're living in the home during construction. Is that possible?
Often, yes. We build a phased plan with dust containment, sealed work zones, protected pathways, a working kitchen or bathroom whenever possible, and quiet hours that fit your family's schedule — including nap times and work-from-home calls.
How do you treat our neighbors?
We introduce ourselves before mobilizing, share a project timeline and a direct phone number, keep parking and deliveries organized, honor local noise ordinances, and clean the street — not just the site. HPOZ and hillside neighborhoods get extra care.
Price, Contracts & Payment
How is pricing determined?
After pre-construction — architect coordination, real scope alignment, and actual subcontractor bids — you receive a line-item fixed price. Not a range, not a guess. You see labor, materials, allowances, contingency, and our fee clearly separated.
What does a project typically cost?
In Los Angeles, high-craft remodels generally start around $350–$550 per square foot, ground-up custom homes around $500–$900+, and architect-grade ADUs typically run $250K–$500K depending on size, site access, and finish level. Hillside lots, historic requirements, and structural work move those numbers. We'll give you an honest range on the first walkthrough.
How do change orders work?
Nothing changes without your written approval. Every change order shows the cost, the schedule impact, and the reason, in plain English, before work proceeds. Our target on a well-planned project is under 5% in owner-initiated changes.
Have a project worthy of real craft?
Tell us about your home. We'll tell you, honestly, whether we're the right team to build it.