Building Maine's Foundation, One Project at a Time
50+
Projects Completed
3+
Generations of Family Craftsmanship
One crew, every solution your property needs—built to last through Maine's toughest conditions.
Colex delivers comprehensive excavation services engineered for Maine’s freeze-thaw cycles, challenging soils, and demanding weather conditions.
From Foundation to Finish—Complete Excavation Solutions
Whether you’re breaking ground on a new development or upgrading municipal infrastructure, Colex has the equipment, expertise, and Maine know-how to get it done right.
Municipal Infrastructure
Complete municipal solutions including treatment facilities, school sites, road construction, and utility installation.
Commercial Development
Foundation excavation, site preparation, parking lots, and business park development from concept to completion.
Residential Projects
Housing developments, septic systems, driveways, and foundation work with the personal touch you deserve.
Site Preparation & Clearing
Professional demolition, land clearing, and site preparation that sets your project up for success.
Utility Installation
Expert water, sewer, and storm drainage systems designed to withstand Maine's challenging conditions.
Road Construction
Durable road construction and reconstruction built for Maine's freeze-thaw cycles and heavy loads.
Take a Look at Our Most Recent Projects
We're honored to serve Maine families and businesses for over two decades.
We'll visit your site, understand your vision, and deliver a detailed estimate tailored to Maine conditions.
“We treat every project with same care and commitment as if we were doing it for ourselves.”
Service Areas
Greater Portland & Southern Maine:
- New Gloucester & Gray
- Auburn & Lewiston
- Brunswick & Freeport
- Windham & Gorham
- And surrounding communities
25+ Years
Of trusted excavation experience serving Maine families and businesses
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Frequently Asked Questions
What makes Colex different from other excavation companies?
As a family-owned business, we treat every project with the same care we’d give our own property. You’ll work directly with Jason Cole, not just a crew foreman, ensuring clear communication and accountability from start to finish.
Do you handle both small residential jobs and large commercial projects?
Absolutely. From single-home septic installations to major municipal infrastructure, we scale our services to match your needs. Our equipment fleet and experienced crew can handle projects of any size.
How do you handle Maine's challenging soil and weather conditions?
With 25+ years of Maine excavation experience, we understand local conditions intimately. We plan for clay soils, ledge, seasonal frost, and drainage challenges that other companies might overlook.
What's included in your free site consultation?
Jason will visit your property, assess soil conditions, discuss your goals and timeline, and provide a detailed written estimate. There’s no pressure—just honest advice from someone who’s been doing this for decades.