# Keystone Connect

> Independent renovation advisory for homeowners in seven Southern California counties, free to homeowners. We introduce two or three licensed, insured builders, run walkthroughs on the same scope, lay the bids out side by side, review contract terms before signing, and stay involved through the build.

Key facts:

- Service area: Los Angeles County, Orange County, San Diego County, Riverside County, San Bernardino County, Ventura County, Santa Barbara County. All 210 incorporated cities in those counties, plus 26 neighborhoods and unincorporated communities.
- Office: 14545 Friar St, Ste 206, Van Nuys, CA 91411
- Phone: (818) 482-8365 · Email: contact@keystoneconnect.us
- Cost to homeowners: none. Builders in the network pay Keystone Connect a fee when hired; nothing is added to the homeowner's price.
- Builder checks: active CSLB license in the right classification with a bond on file (re-checked daily), general liability certificate confirmed with the insurance agent, expiry dates tracked, references called, signed partner agreement.
- Typical projects: ADUs, additions, kitchens and baths, full remodels, new homes, and Palisades and Eaton fire rebuilds; most run $50,000 to $500,000.
- Facts and cost tables last reviewed: 2026-10-27

## Company

- [How it works](https://keystoneconnect.us/services): the five steps from first call to signed contract
- [How we vet builders](https://keystoneconnect.us/quality-assurance): every check, and what a check can't tell you
- [About](https://keystoneconnect.us/about): company facts and how we write our guides
- [Partner program](https://keystoneconnect.us/referral-program): architects and agents earn 1% of project size on referrals that sign
- [Contact](https://keystoneconnect.us/contact): request a call

## Service areas

- [All service areas](https://keystoneconnect.us/service-areas): seven counties, every district and city
- [Los Angeles County](https://keystoneconnect.us/service-areas/los-angeles-county): 104 cities and neighborhoods. From Malibu to Pomona and the Valley to Long Beach. Costs swing about 30% city to city, driven by coastal premiums, hillside lots, and fire-rebuild demand in the Palisades and Altadena.
- [Orange County](https://keystoneconnect.us/service-areas/orange-county): 34 cities and neighborhoods. Anchored by Irvine, Anaheim, and Santa Ana. Coastal premiums in Newport and Laguna, mid-market pricing inland in Anaheim and Garden Grove.
- [San Diego County](https://keystoneconnect.us/service-areas/san-diego-county): 27 cities and neighborhoods. From Oceanside and Carlsbad down to Chula Vista, and east to El Cajon and Ramona. Coastal cities price at a premium; East County and South Bay run closer to Inland Empire rates.
- [Riverside County](https://keystoneconnect.us/service-areas/riverside-county): 28 cities and neighborhoods. Riverside, Corona, and the Pass Area in the northwest; Temecula, Murrieta, and Menifee in the southwest valley; the Coachella Valley out east. Most of the county prices 10–20% under LA.
- [San Bernardino County](https://keystoneconnect.us/service-areas/san-bernardino-county): 24 cities and neighborhoods. From Chino Hills and Rancho Cucamonga to Redlands and Yucaipa, plus the High Desert and Big Bear. The inland labor pool keeps prices among the lowest in our area.
- [Ventura County](https://keystoneconnect.us/service-areas/ventura-county): 10 cities and neighborhoods. Coastal Ventura and Oxnard, the Conejo Valley around Thousand Oaks, and Simi Valley through the Santa Clara River Valley. Prices sit a little above LA County on average.
- [Santa Barbara County](https://keystoneconnect.us/service-areas/santa-barbara-county): 9 cities and neighborhoods. Santa Barbara, Goleta, Carpinteria, and Montecito on the South Coast, plus Santa Maria, Lompoc, and the Santa Ynez Valley up north. The South Coast is the priciest market we cover.
- [Cities A–Z](https://keystoneconnect.us/cities): one page per city with typical costs and who issues permits

## Cost guides

- [Costs by county](https://keystoneconnect.us/cost): 13 project types in each of the seven counties
- [Kitchen Remodel cost in Southern California](https://keystoneconnect.us/cost-guides/kitchen-remodel)
- [Bathroom Remodel cost in Southern California](https://keystoneconnect.us/cost-guides/bathroom-remodel)
- [ADU Construction cost in Southern California](https://keystoneconnect.us/cost-guides/adu)
- [Room Addition cost in Southern California](https://keystoneconnect.us/cost-guides/room-addition)
- [Garage Conversion cost in Southern California](https://keystoneconnect.us/cost-guides/garage-conversion)
- [Roof Replacement cost in Southern California](https://keystoneconnect.us/cost-guides/roof-replacement)
- [Pool Construction cost in Southern California](https://keystoneconnect.us/cost-guides/pool-construction)
- [Pool Remodel cost in Southern California](https://keystoneconnect.us/cost-guides/pool-remodel)
- [Deck & Patio cost in Southern California](https://keystoneconnect.us/cost-guides/deck-patio)
- [Solar Installation cost in Southern California](https://keystoneconnect.us/cost-guides/solar)
- [HVAC Replacement cost in Southern California](https://keystoneconnect.us/cost-guides/hvac)
- [Window Replacement cost in Southern California](https://keystoneconnect.us/cost-guides/window-replacement)
- [Foundation Repair cost in Southern California](https://keystoneconnect.us/cost-guides/foundation-repair)

## Homeowner guides

- [How to compare contractor quotes side by side](https://keystoneconnect.us/pillars/how-to-read-compare-contractor-quotes)
- [Overhead and profit in contractor bids: what's normal in 2026](https://keystoneconnect.us/pillars/hidden-contractor-markups-inflated-quotes)
- [Renovation contract clauses that protect homeowners](https://keystoneconnect.us/pillars/renovation-contracts-clauses-protect-homeowners)
- [Scope of work template for home renovations](https://keystoneconnect.us/pillars/scope-of-work-template-home-renovation)
- [Home renovation cost per square foot in LA (2026)](https://keystoneconnect.us/pillars/renovation-cost-per-sqft-los-angeles)
- [LA renovation permits and inspections](https://keystoneconnect.us/pillars/permits-inspections-home-renovation-los-angeles)
- [Realistic renovation timelines](https://keystoneconnect.us/pillars/renovation-timeline-vs-contractor-estimates)
- [Negotiating contractor bids](https://keystoneconnect.us/pillars/negotiating-contractor-bids-save-money)
- [General contractor vs. managing subcontractors yourself](https://keystoneconnect.us/pillars/general-contractor-vs-self-managing-subcontractors)
- [Renovation ROI in Los Angeles](https://keystoneconnect.us/pillars/renovation-roi-upgrades-home-value-los-angeles)
- [How to vet a contractor: scorecard and red flags](https://keystoneconnect.us/scenarios/contractor-vetting-scorecard-red-flags)
- [Hidden renovation costs and contingency](https://keystoneconnect.us/scenarios/hidden-renovation-costs-contingency-planning)
- [Fixed-price vs. time-and-materials contracts](https://keystoneconnect.us/scenarios/fixed-price-vs-time-materials-contract)
- [Kitchen renovation checklist](https://keystoneconnect.us/scenarios/kitchen-renovation-checklist-permits-living-through)
- [Renovation delays: causes and compensation](https://keystoneconnect.us/scenarios/renovation-delays-verify-negotiate-compensation)
- [CSLB license lookup: verify license, insurance and bond](https://keystoneconnect.us/faqs/verify-contractor-license-insurance-bonding)
- [Questions to ask before hiring a contractor](https://keystoneconnect.us/faqs/questions-to-ask-before-hiring-contractor)
- [Red flags in renovation bids](https://keystoneconnect.us/faqs/red-flags-renovation-bids-contractor-estimates)
- [Contractor payment schedules that protect you](https://keystoneconnect.us/faqs/payment-schedules-protect-homeowners)
- [Contractor warranties and contract requirements in California](https://keystoneconnect.us/faqs/contractor-warranty-contract-requirements)
- [What to do if a quote looks inflated](https://keystoneconnect.us/faqs/what-to-do-contractor-quote-inflated)
- [Contractor FAQ](https://keystoneconnect.us/faq): 18 short answers on California licensing, contracts and payments
- [Kitchen Remodel bid teardown](https://keystoneconnect.us/estimate-teardowns/kitchen-remodel): a representative bid, line by line
- [Bathroom Remodel bid teardown](https://keystoneconnect.us/estimate-teardowns/bathroom-remodel): a representative bid, line by line
- [ADU Construction bid teardown](https://keystoneconnect.us/estimate-teardowns/adu): a representative bid, line by line
- [Roof Replacement bid teardown](https://keystoneconnect.us/estimate-teardowns/roof-replacement): a representative bid, line by line
- [Grade My Bid](https://keystoneconnect.us/grade-my-bid): free 12-question check of a contractor's bid against California contract requirements

## Common questions

- What is Keystone Connect? Keystone Connect is an independent renovation advisory for homeowners in Southern California. We introduce two or three licensed, insured builders who fit your project, set up the walkthroughs, lay their bids out side by side in the same format, flag what's missing or risky before you sign, and stay with you through the build.
- How much does it cost? Nothing. Homeowners never pay us, before or after they hire. You pay the builder you choose, at their price. We don't add anything to it.
- So how do you get paid? Builders in our network pay us a fee when a homeowner hires them through us. We don't add anything to your price. You choose the builder; we never decide for you.
- How is this different from Angi, Houzz or HomeAdvisor? Those are directories and lead marketplaces: your details go to several contractors, who then call you. We don't sell your information. We talk with you first, pick two or three builders for the specific job, and help you compare their bids on the same scope.
- How do you check the builders? Every builder has an active CSLB license in the right classification, which we re-check against the state's license records every day. We read their general liability certificate, confirm it with the insurance agent, and track the expiry date. We also call references before we introduce anyone.
- Where do you work? Seven Southern California counties: Los Angeles, Orange, San Diego, Riverside, San Bernardino, Ventura and Santa Barbara. That's every incorporated city in those counties plus neighborhoods like Sherman Oaks, Pacific Palisades and La Jolla. Our office is in Van Nuys.
- What kinds of projects? Mostly larger home projects: ADUs, additions, kitchens and baths, full remodels, new homes, and rebuilds after the Palisades and Eaton fires. Most of the projects we help with run $50,000 to $500,000.
- I already have a bid. Can you help? Run it through Grade My Bid first. It checks your bid against what California requires in a home improvement contract. If you'd like other bids on the same scope to compare it with, we can line up builders for that.

## Optional

- [Full text of the guides](https://keystoneconnect.us/llms-full.txt)
- [Sitemap](https://keystoneconnect.us/sitemap.xml)