Warren Construction Group
Warren Construction Group is a 100% employee-owned construction management and general contracting firm in Topsham, Maine, delivering preconstruction, custom millwork, and high-performance building (LEED/Passive House) services to educational institutions, commercial clients, and high-end residential homeowners throughout Maine.
- Company typePrivate
- Founded1999
- HeadquartersTopsham, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Warren Construction Group does
Warren Construction Group, LLC is a Topsham, Maine-based construction management and general contracting firm founded in 1999 by Peter Warren. The company operates as a 100% employee-owned LLC delivering preconstruction planning, construction management, and general contracting services across residential, commercial, and campus (educational institution) projects, with two self-perform specialty divisions in custom millwork/cabinetry and certified custom metal roofing (Englert, StormCure). Its service area is concentrated in Maine, covering Portland, Freeport, Brunswick, Harpswell, Bath, Falmouth, Lewiston-Auburn, Cape Elizabeth, and surrounding coastal communities, with no disclosed geographic expansion beyond the state.
The firm differentiates on sustainable, high-performance building credentials, including Passive House delivery (Friends School of Portland achieved a .34 ACH @ 50p blower door test; Maine Coast Waldorf High School), LEED Platinum execution (Bowdoin College Roux Center for the Environment, 29,000 sq ft), LEED Gold with WELL Building Standards alignment (Nature Conservancy Fort Andross Mill, 9,400 sq ft), and deep energy retrofits (Freeport Community Center, up to 70% energy reduction). Notable commercial projects include the EnviroLogix multi-phase laboratory expansion (14,140 sq ft with geothermal HVAC) and the Bowdoin Edwards Center for Art & Dance renovation (49,000 sq ft). Revenue is generated through project-based contracts secured via competitive bidding, negotiated contracts, and client referrals; pricing is custom and project-specific with multi-year contract cadences. The company employs 11-50 people and has not disclosed revenue, external funding, M&A activity, or technology/AI capabilities.
Warren Construction Group firmographics
Firmographics- Name
- Warren Construction Group
- Legal name
- Warren Construction Group, LLC.
- Website
- https://warrenconstructiongroup.com
- Company type
- Private
- Founded year
- 1999
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Warren Construction Group is a 100% employee-owned construction management and general contracting firm in Topsham, Maine, delivering preconstruction, custom millwork, and high-performance building (LEED/Passive House) services to educational institutions, commercial clients, and high-end residential homeowners throughout Maine.
- Ownership category
- akta.pro rank
Warren Construction Group industry classification
Industry- Product category
- Construction Management Services
- NAICS
- Construction of Buildings (236), Residential Building Construction (2361), Commercial and Institutional Building Construction (23622)
- SIC
- General Bldg Contractors - Residential Bldgs (1520), General Bldg Contractors - Nonresidential Bldgs (1540), Operative Builders (1531)
- akta.pro primary industry
- Construction Management (Agency/Owner’s Rep) (IMAFAAAC)
- akta.pro secondary industries
- Residential Design-Build & Renovation-Integrated Builders (IMAFABAE), New School Construction (Greenfield Builds) (EDAEABAA)
Keywords
Where Warren Construction Group is headquartered
LocationHeadquarters
- HQ city
- Topsham
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Warren Construction Group business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- Construction Management & General Contracting: Project-based revenue from construction management and general contracting services for commercial, campus, residential, specialty roofing, and architectural millwork projects. Revenue is generated through competitive bidding and negotiated contracts for completed projects.
- Custom Metal Roofing Installation: Installation services for standing seam metal roofs, copper roofing, EPDM systems, and specialty roof restoration, including certified installations of Englert and StormCure products.
- Custom Millwork & Cabinetry: In-house manufacturing and installation of custom kitchen cabinets, built-in storage solutions, and specialty woodworking for residential and commercial projects.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based custom pricing determined by scope and specifications |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels4 records
Warren Construction Group product offering
Product offeringCore offering
Warren Construction Group provides construction management and general contracting services for residential, commercial, and campus (educational institution) projects throughout Maine. The firm delivers preconstruction planning, budgeting, scheduling, project management, and self-perform capabilities across multiple trades, complemented by in-house custom millwork manufacturing and certified custom metal roofing installation. The company specializes in sustainable, high-performance construction including LEED, Passive House, and WELL Building Standards projects.
Product overview
Warren Construction Group is a 100% employee-owned construction management and general contracting company operating as a single unified service offering rather than a platform-plus-modules architecture. The company provides five interconnected service lines: Residential Construction (custom homes, renovations, additions), Commercial Construction (new builds, renovations, adaptive reuse), Campus Construction (educational facilities), Custom Kitchen Cabinets & Millwork (in-house manufacturing), and Custom Metal & Roofing (standing seam, copper, EPDM systems). Projects span commercial, campus, residential, sustainable building, specialty roofing, and architectural millwork throughout Maine.
Differentiator
Problem solved
Functional benefit
Products and services
- Residential Construction Custom home building and residential contracting including luxury waterfront homes, historic renovations, custom coastal residences, lakefront cottages, and residential additions throughout Maine.
- Commercial Construction Commercial general contracting services including new commercial construction, building renovations, adaptive reuse projects, tenant fit-outs, and occupied facility renovations for businesses, institutions, and nonprofits throughout Maine.
- Campus Construction Campus construction contractor specializing in school, college, university, camp, and educational institution projects including renovations, academic buildings, student housing, dining facilities, and athletic buildings.
- Custom Kitchen Cabinets & Millwork Custom cabinetry and architectural millwork services including custom kitchen cabinets, built-in storage solutions, bathroom vanities, closet systems, and specialty woodworking features manufactured in-house with precision craftsmanship.
- Custom Metal & Roofing Custom metal roofing contractor providing standing seam metal roofs, batten panel roofing systems, copper roofing, copper gutters, EPDM roofing, and specialty roof restoration solutions. Certified Englert and StormCure installer.
- Construction Management & General Contracting Construction management and general contracting services with preconstruction planning, budgeting, scheduling, and project management across residential, commercial, campus, and specialty construction projects throughout Maine.
Quantifiable outcome
- Passive House air sealing achieved .34 ACH @ 50p blower door test result
- +2 more outcomes
Companies that use Warren Construction Group
Customer profileNamed customers12 records
Segments5 records
Ideal customer profiles4 records
Warren Construction Group technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Warren Construction Group partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core.
- Stephen Blatt ArchitectscoreArchitecture partner for Sebago Lake Cottage (5,100 sq ft) and Cutting Edge Research Facility (13,600 sq ft warehouse-to-lab conversion), providing design expertise for residential and commercial projects.
- Kaplan Thompson ArchitectscoreArchitecture firm partner for Magnus On Water restaurant renovation (1,900 sq ft) in Biddeford, featuring adaptive reuse and hospitality construction.
- Cambridge Seven AssociatescoreArchitecture firm partner for Roux Center for the Environment at Bowdoin College (29,000 sq ft, LEED Platinum), a three-story facility with laboratories, classrooms, and faculty offices.
- Winkelman ArchitecturecoreArchitecture partner for In Touch With Nature lake house project in Rome, Maine, featuring natural materials integration with standing-seam copper roof.
- Kaplan Thompson ArchitectscoreArchitecture firm partner for Friends School of Portland (Passive House/net-zero school) and Perched Over Casco Bay project (3,260 sq ft coastal home), specializing in sustainable and contemporary design.
- Cambridge Seven AssociatescoreArchitecture firm partner for Bowdoin College Edwards Center for Art & Dance renovation (49,000 sq ft), transforming historic Longfellow Elementary School into arts and dance facilities while preserving historic character.
- TFH ArchitectscoreArchitecture firm partner for EnviroLogix multi-phase laboratory expansion (14,140 sq ft), integrating specialized lab climate control, geothermal HVAC, and controlled environment construction.
- Whitten ArchitectscoreLong-term architecture partner for multiple residential projects including Cundy's Point Residence (7,700 sq ft waterfront home) and Mere Point Residence, featuring coastal design expertise.
- Scott Simons ArchitectscoreArchitecture firm partner for Freeport Community Center (10,000 sq ft addition) and historic home renovations, designing modern additions with green materials and efficient mechanical systems.
- EnglertcoreCertified Englert metal roofing installer, providing expertise in standing seam metal roofing systems with manufacturer-backed warranty support for Maine climate applications.
- BriburncoreArchitecture firm partner for The Nature Conservancy office (9,400 sq ft LEED Gold project in historic Fort Andross Mill), specializing in sustainable design meeting WELL Building Standards.
Scale indicators5 records
Recent moves5 records
Expansion highlights4 records
Warren Construction Group competitors and assessment
Company assessmentBroad incumbents
- Shawmut Design and Construction: Larger Boston-based national construction management firm with overlapping commercial, institutional, and high-end residential work; competes on larger institutional bids throughout New England.
- Cianbro Corporation: Maine-based, much larger construction and engineering firm that competes for institutional and commercial work across the same geography; significantly bigger footprint but overlapping bid pool.
- Suffolk Construction: National ENR-ranked construction manager with major Boston presence; competes for institutional and commercial work across New England at a much larger scale.
Direct peers
- Consigli Construction Co., Inc. ENR-ranked New England construction management and general contracting firm with similar institutional, commercial, and historic-renovation work, including LEED-certified higher-ed projects. Most direct comparable in business model and geography.
- Kaplan Construction: Massachusetts-based general contractor and construction manager with comparable institutional, commercial, and historic-renovation portfolio, including sustainable building work.
- Bond Brothers: New England general contracting and construction management firm with similar institutional, commercial, and historic-renovation focus, plus self-perform specialty trades — comparable mid-size regional peer.
- Landry/French Construction: Maine-based general contractor offering preconstruction, construction management, and sustainable building services with strong institutional and higher-education portfolio — directly comparable on geography and segment mix.
- Commodore Builders: Boston-area construction management firm focused on commercial, institutional, and life-science projects, with comparable self-perform capabilities and mid-market institutional client mix.
- T.G. Nickerson: Maine-based general contractor serving commercial, institutional, and residential clients throughout northern New England, with comparable regional general contracting services and similar size profile.
- J. Calnan & Associates: New England-based construction management firm focused on commercial, institutional, and life-science clients — comparable size, regional focus, and preconstruction-led delivery model.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat3 records
Key risks5 records
Key highlights5 records
Customer concentration
Warren Construction Group social profiles
Digital presenceWarren Construction Group compliance and trust
Trust signalCompliance3 records
Warren Construction Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Warren Construction Group leadership team
Management profileNumber of profiles
Profiles1 record
Warren Construction Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Warren Construction Group 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 Warren Construction Group
What does Warren Construction Group do?
Warren Construction Group provides construction management and general contracting services for residential, commercial, and campus (educational institution) projects throughout Maine. The firm delivers preconstruction planning, budgeting, scheduling, project management, and self-perform capabilities across multiple trades, complemented by in-house custom millwork manufacturing and certified custom metal roofing installation. The company specializes in sustainable, high-performance construction including LEED, Passive House, and WELL Building Standards projects.
Is Warren Construction Group a public or private company?
Warren Construction Group is a private company. It is classified as management employee owned and is currently operating.
When was Warren Construction Group founded?
Warren Construction Group was founded in 1999. It employs 11 to 50 people.
Where is Warren Construction Group based?
Warren Construction Group is headquartered in Topsham, United States, in the North America region.
How does Warren Construction Group make money?
Three revenue lines are on record. Construction Management & General Contracting is the primary driver. The others are custom Metal Roofing Installation and custom Millwork & Cabinetry.
Who are Warren Construction Group's main competitors?
Broad incumbents on record are Shawmut Design and Construction, Cianbro Corporation and Suffolk Construction. Direct peers are Consigli Construction Co., Inc., Kaplan Construction, Bond Brothers, Landry/French Construction, Commodore Builders, T.G. Nickerson and J. Calnan & Associates.
Does Warren Construction Group have an API?
No public API is recorded for Warren Construction Group.
What industry is Warren Construction Group in?
Warren Construction Group's product category is Construction Management Services. Its primary akta.pro industry code is IMAFAAAC, Construction Management (Agency/Owner’s Rep), with a secondary code of IMAFABAE, Residential Design-Build & Renovation-Integrated Builders. Its NAICS code is 236 and its SIC code is 1520.