J2 Building Consultants

What J2 Building Consultants does

J2 Building Consultants, Inc. (operating as The Building Doctors™) is a privately held building envelope consulting, architectural design, and engineering firm founded in 2007 by Jens Johanson and headquartered in Mukilteo, Washington. The firm provides integrated building envelope services — forensic inspections, building condition assessments, repair design, waterproofing and roof consulting, construction administration, and expert witness support — delivered through a proprietary three-stage "Diagnose, Prescribe, Treat" methodology. Technical capabilities include WUFI hygrothermal modeling, ASTM E1105 window water infiltration testing, infrared thermography, moisture surveys, and FAA-certified drone inspections, staffed by professionals holding RRO and RRC certifications.

The company's revenue model is built on professional services fees billed against project-based engagements, with a freemium front door (free Clarity Call) feeding into a paid Virtual Building Doctor consultation product and larger inspection, design, and project management engagements. Pricing is quote-based and varies by building size, scope, and complexity, with no publicly disclosed price list. Target customers span condominiums and HOAs, apartments and multifamily, commercial buildings, attorneys, contractors, places of worship, and schools — with primary focus on mid-market HOA boards, community managers, and building owners across Washington, Oregon, and Utah.

Go-to-market is sales-led but heavily supported by content marketing: a monthly "Building Doctor Show" webinar, free downloadable guides, blog content, YouTube video education, and active social channels on Facebook, TikTok, LinkedIn, and Instagram. Lead generation is amplified by location-specific SEO landing pages across major Pacific Northwest and Mountain West metros. Distribution is direct via website inquiry forms, regional phone lines, and in-person consultations at three regional offices. The company reports having served 3,500+ building owners since founding.

Name

J2 Building Consultants

Legal name

J2 Building Consultants, Inc.

Website

https://j2consultants.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

J2 Building Consultants (The Building Doctors™) is a private building envelope consulting and engineering firm founded in 2007, serving HOAs, condominium boards, apartment owners, commercial buildings, and attorneys across Washington, Oregon, and Utah with forensic inspections, repair design, and project management.

Ownership category

akta.pro rank

Product category

Building Envelope Consulting Services

NAICS

Architectural, Engineering, and Related Services (5413), Building Inspection Services (54135), Architectural Services (541310)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

akta.pro secondary industry

Fire & Life Safety Code Compliance Inspections & Consulting (AHJ Support) (BPABAHAJ)

Keywords

• Building envelope consulting
• Forensic building inspections
• Construction project management
• Roof consulting services
• Building envelope design

Headquarters

HQ city

Mukilteo

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Building Envelope Consulting Services: Professional consulting fees for building envelope inspections, forensic analysis, building condition assessments, and expert witness services. Revenue generated through project-based engagements with HOA boards, property managers, and building owners.
2. Design and Engineering Services: Building envelope design, waterproofing design, construction drawings, and specifications. Fees based on project scope and complexity for new designs and remediation projects.
3. Project Management and Construction Administration: Oversight of construction repairs, contractor bid review, and quality assurance inspections. Revenue from ongoing project management retainer and per-project administration fees.
4. Virtual Building Doctor Consultations: Virtual engineering consultations and board coaching meetings, both virtual and in-person. Initial consultations offered free, with follow-up paid services for in-depth inspections.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

J2 Building Consultants is a professional services firm that diagnoses, designs solutions for, and oversees repairs of building envelope issues for condominiums, HOAs, apartments, and commercial buildings. Core offerings include forensic inspections, building envelope and roof consulting, repair design and specifications, construction administration and project management, expert witness and litigation support, and free/paid Virtual Building Doctor consultations.

Product overview

J2 Building Consultants operates as a building envelope consulting firm offering a portfolio of interconnected services under its 'Building Doctors' brand. The core offerings include Virtual Building Doctor (virtual consultations), Clarity Call (free initial consultations), Wellness Check, Visual Exam, and forensic inspection services. These feed into specialized services including structural and exterior services, registered roof consultant services, project management, design services (building envelope design, WRB and flashing design), and construction claims support (expert witness, litigation). The company also provides educational resources including guides, webinars, and DIY inspection materials. All services are delivered by a multidisciplinary team of engineers, designers, project managers, and quality control inspectors serving condominiums, apartments, commercial buildings, and other property types across Washington, Oregon, and Utah.

Differentiator

Problem solved

Functional benefit

Products and services

• Virtual Building Doctor A virtual consultation service providing up to 2 hours of video conference access to J2's team of engineers, building envelope designers, consultants, and project managers for reviewing documents, attending board meetings, or virtually walking a site to assess building conditions.
• Clarity Call A free consultation service offering quick answers to building questions via telephone or video, providing a no-copay, no-retainer initial consultation with J2's building doctors.
• Wellness Check An inspection service providing a preliminary assessment of building conditions to help identify issues and determine next steps for more detailed evaluation.
• Visual Exam A visual inspection service examining building exterior conditions to identify visible signs of damage, deterioration, or maintenance concerns.
• Forensic Inspections Comprehensive investigation services including building inspections, warranty inspections, and condition assessments to identify the root causes of building failures and damage.
• Structural & Exterior Services Services covering facade and siding inspections and repairs, waterproofing and moisture investigation, roofing evaluation and design, and window leak and wall assessments.
• Project Management Construction administration, project oversight, and contractor bid review services to ensure repairs are completed correctly and within budget.
• Design Services Building envelope design, weather resistant barrier and flashing design, renderings, building code compliance reviews, ADA compliance assessments, permitting support, and design claim support.
• Building Envelope Design Siding redesign and restoration drawings, cladding and exterior finish design, window and door replacement specifications, roofing design and specifications, waterproofing design and details, construction drawings, bid sets, design specifications, and material recommendations.
• Registered Roof Consultants Roof condition assessments and inspections, attic ventilation calculations, moisture surveys and infrared thermography, and leak investigation and diagnosis services.
• Construction Claims Construction defect investigation, cause and failure analysis, expert witness testimony, litigation support and consulting, and mediation and arbitration support.
• Compliance Inspections & Quality Assurance Compliance inspections and quality assurance services to verify building systems meet required standards and regulations.
• Window and Air Testing Window water infiltration testing per ASTM E1105 standards and field mock-up testing to verify building envelope performance.
• Due Diligence Inspections and Property Condition Assessments (PCAs) Inspections and assessments conducted for acquisitions and sales to evaluate building condition and identify potential issues before transactions.

Quantifiable outcome

• Building value increase after repairs
• +1 more outcomes

Named customers6 records

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• EBI Consulting: Building consulting firm providing property condition assessments, building envelope, and energy services. Competes with J2 in due diligence inspections and envelope consulting for commercial and multifamily clients.
• Building Technology Consultants: Mid-size building envelope and forensic consulting firm serving property owners, HOAs, and attorneys on similar diagnosis, design, and litigation support services. Closely aligned in service mix and client segments to J2.
• Walker Consultants: Engineering firm specializing in building envelope, parking structures, and restoration consulting. Overlaps with J2 in building enclosure diagnostics and remediation design, particularly on commercial and multifamily projects.
• Pie Consulting & Engineering: Building envelope and roof consulting firm offering building investigation, design, and expert witness services. Direct competitor in residential and commercial envelope work with overlapping client profiles to J2.
• RRC Companies: Roof consulting and engineering firm providing assessments, design, and QA services for building owners. Directly overlaps with J2's RRO/RRC certified roof consulting, moisture survey, and envelope offerings.

Broad incumbents

• ECS Group Limited: Large national engineering consulting firm with building enclosure services including facade, roofing, and waterproofing consulting. Competes with J2 in commercial envelope and structural building services but at significantly larger scale.
• Simpson Gumpertz & Heger (SGH): Engineering firm specializing in building envelope, structural, and building science consulting. SGH serves similar clients on complex envelope and waterproofing problems but operates nationally with significantly deeper technical bench than J2.
• Partner Engineering and Science: National firm providing property condition assessments, due diligence, and building consulting for commercial real estate. Competes with J2 in PCA and inspection services but with broader geographic reach and institutional client base.
• Wiss, Janney, Elstner Associates (WJE): National engineering firm with one of the largest building envelope and forensic practices in the U.S. WJE is a broad incumbent that competes with J2 on complex envelope failures and expert witness work but at much larger scale and broader geographic reach.
• Terracon Consultants: Large national engineering and consulting firm with a building enclosure services practice. Terracon competes for envelope, roof, and structural consulting projects at much larger scale and broader service portfolio than J2.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/J2BuildingConsultant
• Facebookfacebook.com/j2consultants
• LinkedInlinkedin.com/company/j2consultants
• Instagraminstagram.com/j2consultants
• TikToktiktok.com/@j2consultants
• Xx.com/j2_consultants

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 J2 Building Consultants