Kolbert Building
- Company typePrivate
- Founded2004
- HeadquartersPortland, United States
- Headcount1–10
- GTM typeB2C
- OfferingServices
Kolbert Building firmographics
Firmographics- Name
- Kolbert Building
- Legal name
- Kolbert Building
- Website
- https://kolbertbuilding.com
- Company type
- Private
- Founded year
- 2004
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Ownership category
- akta.pro rank
Kolbert Building industry classification
Industry- Product category
- Residential Construction Services
- NAICS
- Residential Building Construction (23611), Residential Remodelers (236118), New Single-Family Housing Construction (except For-Sale Builders) (236115)
- SIC
- General Bldg Contractors - Residential Bldgs (1520), Construction - Special Trade Contractors (1700)
- akta.pro primary industry
- Residential Green / High-Performance Home Construction (Net-Zero, Passive House) (IMAFABAH)
- akta.pro secondary industries
- Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), Custom Home Building (IMAFABAC), Historic Home Renovation & Preservation (HSAPAEAG)
Keywords
Where Kolbert Building is headquartered
LocationHeadquarters
- HQ city
- Portland
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Kolbert Building business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Marketing or Sales, Others
Revenue model
- Residential Construction Services: Project-based revenue from building new homes and renovating existing ones. Services include new construction, renovations, additions, historic home restoration, and high-performance building projects. Pricing is quote-based and project-specific.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom quote-based pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Kolbert Building product offering
Product offeringCore offering
Kolbert Building designs and builds new homes and renovates existing houses in the greater Portland, Maine area, with a focus on high-performance, energy-efficient construction guided by the Pretty Good House methodology. Service offerings span new construction, renovations, additions, kitchen and bath remodels, and historic home restoration. Pricing is quote-based and project-specific, with long-term monitoring of completed homes to ensure performance.
Product overview
Kolbert Building is a residential construction company offering home building and renovation services in the greater Portland, Maine area. Their core offering centers on the Pretty Good House philosophy—a building framework they've pioneered that balances construction cost with energy performance, durability, and environmental impact. Services include new construction guided by Pretty Good House principles, renovation and addition projects, specialized kitchen and bathroom remodeling, high-performance building with energy efficiency focus, and historic home restoration. The company also publishes the Pretty Good House book documenting their building approach.
Differentiator
Problem solved
Functional benefit
Products and services
- New Construction Services Design and construction of new homes guided by Pretty Good House principles, featuring efficient shells, excellent air sealing, healthy materials, and minimal concrete usage. Aimed at homeowners in the greater Portland, Maine area seeking energy-efficient custom homes.
- Renovation and Addition Services Improving existing homes through energy efficiency upgrades, functionality enhancements, and space additions, with design and product selection often handled in-house. Targeted at existing homeowners seeking better-performing homes.
- Kitchens & Baths Specialized renovation services for kitchens and bathrooms—described by the company as the most important rooms in a house—built to be well-made and enjoyable. For homeowners remodeling key living spaces.
- High-Performance Building Construction approach focused on reducing energy usage, improving comfort, managing water and humidity, and minimizing environmental impact across new builds and renovations. Applied across Kolbert Building's project portfolio.
- Historic Home Restoration Restoration of older properties including lead paint mitigation, historic detail repair, water intrusion prevention, and cutting-edge equipment retrofits. For owners of historic homes seeking modern performance while preserving character.
- Pretty Good House (book) Published book titled 'Pretty Good House: A Guide to Creating Better Homes' providing a building framework for designing and constructing high-performance, energy-efficient homes that balance cost, comfort, durability, and environmental impact without prescribing rigid solutions. Targets homeowners, builders, and designers.
Quantifiable outcome
- LEED Platinum certification achieved on first high-performance home project (Presumpscot River Estuary)
- +1 more outcomes
Companies that use Kolbert Building
Customer profileNamed customers4 records
Segments1 record
Ideal customer profiles1 record
Kolbert Building technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Kolbert Building partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core and minor.
- Kaplan Thompson ArchitectcoreDesign partner for Presumpscot River Estuary and Falmouth Flyer projects. Phil Kaplan, Architect designed the first high-performance home and the Copper Farmhouse high-performance home.
- Kevin Browne ArchitectscoreDesign partner for Yarmouth New Build project, providing architectural design for the Arts and Crafts style home.
- Michael Maines Residential DesigncoreDesign partner for Cape Elizabeth Rebuild and Scarborough New Build projects. Michael Maines is also co-author of Pretty Good House book.
- Jim Godbout Plumbing & HeatingcorePrimary HVAC and plumbing contractor appearing across multiple projects including ventilation systems, heat pumps, and radiant heat installation.
- Revision EnergycoreSolar hot water, radiant heat, and solar PV installation partner across multiple projects including Presumpscot River Estuary, Yarmouth New Build, Falmouth Flyer, and Rosemont Add-a-Level.
- GLB ConstructioncoreSitework, foundation, and concrete contractor for Presumpscot River Estuary, Cape Elizabeth Rebuild, Cumberland Renovation, and Rosemont Add-a-Level projects.
- BriburnminorDesign partner for Cumberland Renovation project with architect Harry Hepburn.
- Ann Kearsley DesignminorLandscape design partner for Yarmouth New Build project.
- Prospect DesignminorDesign partner for Rosemont Add-a-Level project with Brewster Buttfield.
- Balance Design StudiominorKitchen design partner for Cumberland Renovation project.
- Elizabeth Newman ArchitectminorDesign partner for Cape Elizabeth Panelized Build project.
Scale indicators4 records
Recent moves4 records
Expansion highlights3 records
Kolbert Building competitors and assessment
Company assessmentDirect peers
- Transformations Inc. Wisconsin-based custom builder focused on energy-efficient and Passive House residential construction. Comparable in scale, philosophy, and reliance on building-science expertise to deliver premium high-performance homes.
- Bensonwood: New Hampshire-based designer and builder of custom high-performance homes using timber framing and panelized off-site construction. Directly comparable in scope (custom high-end, energy-focused) and applies similar panelized/prefab techniques Kolbert has begun using.
- GO Logic: Maine-based design-build firm specializing in Passive House and high-performance residential construction. Closest geographic and methodological peer to Kolbert Building, with similar focus on energy-efficient envelopes, deep energy retrofits, and integrated architecture-builder delivery.
- Garland Mill: Lancaster, NH-based high-performance home builder using timber framing and high-efficiency envelope detailing. Listed in Kolbert's ecosystem (former employer of carpenter John Zink), with comparable philosophical emphasis on building science and craft.
- BPC Green Builders: Connecticut-based custom builder specializing in LEED, ENERGY STAR, and Net-Zero ready homes. Directly comparable as a small-to-mid custom high-performance builder with deep building-science credentials and similar project mix.
- South Mountain Company: Martha's Vineyard-based design-build firm integrating architecture, construction, and sustainable practices for custom homes and additions. Comparable integrated design-build model with strong emphasis on energy performance and healthy materials.
- Hammer & Hand: Pacific Northwest and Hudson Valley builder specializing in Passive House, deep energy retrofits, and natural-material high-performance homes. Direct methodological peer emphasizing building-science rigor, healthy materials, and craft quality.
- Coldham & Hartman: Massachusetts-based custom builder focused on high-performance homes, deep energy retrofits, and Passive House construction. Closely comparable in mission, building-science rigor, and project-type mix to Kolbert Building.
Emerging players
- Mighty Buildings: California-based prefab sustainable home builder using 3D printing and panelized construction. Comparable sustainability mission and partial overlap with Kolbert's panelized Cape Elizabeth build, though operates at materially different scale and technology stack.
Others
- Kaplan Thompson Architect: Maine-based architecture firm and Kolbert Building's primary design partner on multiple high-performance projects. Closely aligned with Kolbert's Pretty Good House philosophy and represents the design-side complement of Kolbert's build capability.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat3 records
Key risks5 records
Key highlights6 records
Customer concentration
Kolbert Building social profiles
Digital presenceKolbert Building compliance and trust
Trust signalCompliance1 record
Kolbert Building financial estimates
Financial estimateRevenue estimate
Valuation estimate
Kolbert Building leadership team
Management profileNumber of profiles
Profiles13 records
Kolbert Building funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Kolbert Building M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Kolbert Building
What does Kolbert Building do?
Kolbert Building designs and builds new homes and renovates existing houses in the greater Portland, Maine area, with a focus on high-performance, energy-efficient construction guided by the Pretty Good House methodology. Service offerings span new construction, renovations, additions, kitchen and bath remodels, and historic home restoration. Pricing is quote-based and project-specific, with long-term monitoring of completed homes to ensure performance.
Is Kolbert Building a public or private company?
Kolbert Building is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Kolbert Building founded?
Kolbert Building was founded in 2004. It employs 1 to 10 people.
Where is Kolbert Building based?
Kolbert Building is headquartered in Portland, United States, in the North America region.
How does Kolbert Building make money?
One revenue line is on record: residential Construction Services.
Who are Kolbert Building's main competitors?
Direct peers on record are Transformations Inc., Bensonwood, GO Logic, Garland Mill, BPC Green Builders, South Mountain Company, Hammer & Hand and Coldham & Hartman. Mighty Buildings is listed as an emerging player. Kaplan Thompson Architect is listed as an others.
Does Kolbert Building have an API?
No public API is recorded for Kolbert Building.
What industry is Kolbert Building in?
Kolbert Building's product category is Residential Construction Services. Its primary akta.pro industry code is IMAFABAH, Residential Green / High-Performance Home Construction (Net-Zero, Passive House), with a secondary code of IMAFABAE, Residential Design-Build & Renovation-Integrated Builders. Its NAICS code is 23611 and its SIC code is 1520.