Our Services
Expert Craftsmanship for Sustainable Living
At CSM Custom Builders, we provide tailored solutions for building and renovating homes that blend beauty, efficiency, and sustainability, ensuring your living space reflects your values and enhances your lifestyle.
Our Process
Step-by-Step Approach
Step-01
Consultation
Step-02
Design Planning
Step-03
Construction Execution
01
Onsite Stick-Built Construction
Structure framed onsite. Best suited for difficult access sites and complex structures
Single-Wall System with Exterior Insulation $$$
Thermal break exterior to framing member. 2×6 wall stud construction. Interior ridgid and roxul hybrid or closed cell urethane.
Double-Stud Wall System $$$$
Secondary nonstructural wall framed interior or exterior to structural wall. Thermal break between the two walls. Dense pack cellulose insulation to 10in. Very high R-value.
02
Factory Built Assemblies
Assemblies or whole sections of the structure built or prepared offsite
Customizable Modular $$$$
High performance models available. Primarily built in a controlled environment. Fastest to dry in once onsite.
Heavy Timber $$$$
Fully customizable. Whole house packages available. Shipped in individual units to be assembled onsite. Examples include log homes and timber frame.
Materials We Utilize
At CSM Custom Builders, we select every material with purpose—balancing strength, performance, and sustainability. From framing to finishes, our homes are built for lasting comfort, durability, and beauty.

Premium Lumber & Structural Framing
We use high-grade, kiln-dried lumber and engineered wood for strength, stability, and long-term durability—building every frame to the highest standards.
High-Performance Insulation Systems
From dense-pack cellulose to rigid exterior insulation, our materials reduce energy loss and enhance comfort in Maine’s tough climate.
Durable Exterior Finishes
We choose siding, roofing, and trim that combine beauty and endurance, ensuring your home withstands the elements and looks great for years.
Healthy, Sustainable Interiors
We use low-VOC paints, natural finishes, and premium materials that promote a healthy indoor environment and lasting craftsmanship.
New Home Construction
We specialize in designing and building high-efficiency residential homes. Our new constructions optimize energy usage, ensuring your home is not only aesthetically pleasing but also environmentally friendly and cost-effective in the long run.
Major Renovations
Transform your existing space with our expert renovation services. We focus on enhancing your home’s functionality and visual appeal while incorporating sustainable practices that align with your lifestyle and personal style.
Green Building Solutions
Our commitment to sustainable construction means we utilize eco-friendly materials and innovative practices in every project. We aim to reduce your carbon footprint while maximizing energy efficiency in your residential spaces.
Interior Design
Our interior design services blend creativity and functionality to create harmonious spaces. We work with you to select finishes, colors, and layouts that reflect your personal style while promoting an energy-efficient environment.
Project Management
We offer comprehensive project management services, ensuring that each phase of your construction or renovation runs smoothly. Our team coordinates timelines, budgets, and resources to achieve your vision with minimal stress.
