CSH (Westhill) Inc.

What CSH (Westhill) Inc. does

Westhill Inc. is a privately held, family-owned design/build residential construction firm headquartered in Woodinville, Washington, founded in 1974 by Charlie Russell and Ron Coster. The company operates as an integrated design/build general contractor, providing custom home construction, home additions, kitchen and bathroom remodels, outdoor living expansions, residential maintenance, and in-house design and professional selection services to homeowners primarily across East King County — including Woodinville, Kirkland, Redmond, Bothell, Mercer Island, Sammamish, and Monroe.

The firm's core methodology is the single-firm design/build model: Westhill manages the project from concept and design through permitting, subcontractor coordination, and construction supervision, eliminating the homeowner's burden of mediating between separate architects, designers, and trade contractors. The team of approximately 25 includes a president (second-generation family leadership), general manager, project developers, project coordinators, in-house designers, field crews, and support staff, supplemented by a network of trade subcontractors. The company holds CGR, CAPS, EPA Lead-Safe, Energy Star Partner, and BBB accreditations, and maintains membership in NAHB, BIAW, and the Master Builders Association.

Westhill's revenue model is project-based, quote-driven, and one-time per engagement, with no disclosed pricing tiers and pricing determined after free in-person estimates. Go-to-market is sales-led through the company website, walk-in design-center consultations, an extensive online project gallery, social media channels (Facebook, Pinterest, Instagram, Houzz), and a strong referral network reinforced by local community sponsorships. The customer base consists entirely of individual residential homeowners (SMB segment), with no enterprise accounts and revenue distributed across a long tail of one-off projects. The firm has remained independent for over five decades with no external funding, acquisitions, or public-company aspirations disclosed.

Name

CSH (Westhill) Inc.

Legal name

Westhill Inc.

Website

https://westhillinc.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

Westhill Inc. is a family-owned, Woodinville-based design/build residential general contractor serving homeowners across East King County, WA with custom homes, remodels, additions, maintenance, and in-house design services since 1974.

Ownership category

akta.pro rank

Product category

Residential Construction Services

NAICS

New Single-Family Housing Construction (except For-Sale Builders) (236115), Residential Remodelers (236118)

SIC

General Bldg Contractors - Residential Bldgs (1520)

akta.pro industry

PRIMARYIMAFABAE

Residential Design-Build & Renovation-Integrated Builders

Industrials, Manufacturing & Construction/Construction & Civil Engineering/Residential Building Construction

SECONDARYIMAFABAC

Custom Home Building

Industrials, Manufacturing & Construction/Construction & Civil Engineering/Residential Building Construction

Keywords

• Custom home construction
• Residential remodeling services
• Design-build contracting
• Home addition construction
• Kitchen and bath remodeling

Headquarters

HQ city

Woodinville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Custom Home Construction: Full-service custom home building from concept to completion. Company designs and constructs homes to meet client needs, wants and budget.
2. Home Remodeling Services: Kitchen remodels, bathroom upgrades, home additions, outdoor living expansions, and other renovation projects. Includes project management, design, permitting, and code compliance coordination.
3. Design Services: In-house design team providing project planning and professional selections (finishes, fixtures, materials coordination). Offered as standalone service and integrated with construction projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

CSH (Westhill) Inc. is a family-owned design/build residential construction company based in Woodinville, Washington, serving the Greater Seattle and Eastside area since 1974. The firm designs and builds custom homes, home additions, and full or partial remodels, while also providing in-house architectural design, professional selections coordination, and ongoing home maintenance services for individual homeowners.

Product overview

Westhill Inc. is a design/build home construction company offering comprehensive residential services. The company provides a unified suite of services including custom home construction, home additions, remodels (kitchens, bathrooms, and outdoor living), maintenance, design services, and professional selections. As a design/build firm, they manage projects from concept to completion, coordinating all phases including planning, design, permitting, project management, and code compliance.

Differentiator

Problem solved

Functional benefit

Products and services

• Custom Homes
• Home Additions
• Remodels
• Architectural Design Services
• Professional Selections
• Home Maintenance

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered minor.

• Woodinville Chamber of CommerceminorOthersWesthill is a proud supporter of the Woodinville Chamber and all its entities. Sponsors of the annual summer Celebrate Woodinville series, Winterfest celebration, and supports the Chamber's charitable giving through the annual auction.
• Maltby Food BankminorOthersWesthill sponsors a food drive at their offices and collects from community members to support the Maltby Food Bank's mission of addressing food insecurity. They rotate donations with the Woodinville Storehouse food pantry.
• Homeward Pet Adoption CenterminorOthersWesthill is a proud supporter of the Homeward Pet Adoption Center auction, supporting animal welfare in the community.
• Woodinville Heritage SocietyminorOthersWesthill is a proud supporter of the Woodinville Heritage Society's mission to honor the history of the community.
• Seattle Children's HospitalminorOthersWesthill supports medical care in the community through organizations like Seattle Children's Hospital and the Fred Hutch Cancer Research Center.
• Northshore Schools FoundationminorOthersAs an inaugural member of the 500 Club, Westhill supports the community's students and schools through the Northshore School Foundation.
• Woodinville Little LeagueminorOthersWesthill supports access to youth sports in the community through sponsorship of the Woodinville Little League.

Scale indicators3 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• Neil Kelly Company: Long-established Pacific Northwest design-build remodeler and custom home builder founded in 1947, headquartered in Portland/Seattle. Directly comparable to Westhill in integrated design-build delivery, certified remodeler credentials, and focus on residential remodels and additions in the same regional market.
• Buchan Construction Group: Seattle-area design-build contractor with residential division serving Eastside homeowners on custom homes and remodels. Closely comparable to Westhill's integrated design-build delivery model and Eastside geographic focus.
• JayMarc Homes: Seattle-area custom home builder and remodeler serving Bellevue, Mercer Island, and Eastside communities. Directly competes with Westhill for custom home and major addition projects in the same geography with a similar design-build orientation.
• Rob Rice Homes: Pacific Northwest custom home builder serving the greater Seattle/Eastside area with a focus on design-driven custom homes. Closely comparable to Westhill's custom home construction service line in geography and product type.
• MSI Construction: Greater Seattle-area design-build general contractor focused on custom residential remodels and additions. Comparable to Westhill in service mix, integrated design/build offering, and Pacific Northwest market.
• Aldrich + Associates: Bellevue-based design-build residential remodeler and custom home builder serving East King County. Competes head-to-head with Westhill for design-build remodels and additions in the Bellevue/Kirkland/Redmond corridor.
• Tedrick Homes: Washington State custom home builder with decades of experience in the Puget Sound region. Comparable to Westhill in product offering (custom homes, remodels) and target market (affluent homeowners in Greater Seattle).

Broad incumbents

• Lowe's Home Improvement: National home improvement retailer with installation services and in-house remodeling offerings. Serves as a broader-incumbent alternative to Westhill's design-build remodel service for homeowners in the East King County area, though at a much lower price point and less customization.

Emerging players

• Sweeten: Tech-enabled residential remodel marketplace that matches homeowners with vetted general contractors. Emerging competitive threat to Westhill's lead generation and homeowner acquisition in the Eastside, particularly among younger homeowners who prefer digital-first experiences.

Regional players

• Dunn Lumber / Dunn Construction: Pacific Northwest lumber and building materials retailer with affiliated construction services. Adjacent to Westhill's market in the Eastside, with comparison along the materials/supplier side of residential construction rather than direct design-build competition.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/WesthillInc
• Instagraminstagram.com/westhillinc
• Pinterestpinterest.com/westhillinc
• LinkedInlinkedin.com/company/westhill-inc.-design-build

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CSH (Westhill) Inc.