Transform your property 

We provide exceptional general contracting services for residential & commercial customers in Calgary, Alberta and surrounding areas, backed with over 20 years of experience.

Successful projects
Years of experience
Liability insurance
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Interior Renovations

When you envision your dream home, do you see bright, open spaces, luxurious finishes, and a layout that perfectly suits your lifestyle? Koomen Contracting brings those dreams to life. Our team of skilled professionals delivers seamless interior renovations, handling every aspect from concept to completion.

Wall Removal

Exterior Renovations

Your home's exterior is more than just its "face" – it's protection, efficiency, and a statement of your style. Koomen Contracting revitalizes tired exteriors, offering a full range of services to meet your unique vision and needs

Exterior Design


Transform your property into a private retreat. Whether you dream of lush lawns, inviting patios, or functional garden spaces, Koomen Contracting brings your landscaping vision to life with expert design and quality workmanship.

Grass & Sod
Synthetic Turf
Tree Planting


Trust Koomen Contracting to turn your concrete dreams into reality. Whether you envision a grand driveway, an inviting patio, or the perfect foundation, our team delivers superior craftsmanship tailored to your vision.

Heated Driveway
Concrete Walls
Garage Slab

Floor Coatings

When your floors need more than just a surface treatment, Koomen Contracting delivers superior floor coating solutions. From tough industrial coatings to beautiful residential finishes,  we transform concrete into a functional and long-lasting asset.

Industrial Coatings
Commercial Coatings
Residential Coatings
Conrete Sealing
Concrete Coating
Polyurethane Coatings
Epoxy Coatings


Whether you're breaking ground on a new build or reshaping your landscape, Koomen Contracting provides comprehensive excavating services to tackle jobs of any size.  Our skilled team and specialized equipment deliver precision, efficiency, and results.

Acreage Development
Land Clearing
House Demolition

Retaining Walls

Koomen Contracting transforms uneven landscapes into functional, beautiful spaces with our retaining wall services. From simple slope control to stunning multi-tiered features, we create durable solutions tailored to your property.

Boulder Walls
Erosion Control
Concrete Walls
Natural Stone Walls

Septic & Water

Koomen Contracting delivers essential septic and water system solutions for residential and rural properties. We guarantee quality workmanship and adherence to regulations for lasting peace of mind.

Certified Insaller
Septic Systems
Septic Design
Septic Tank Install
Field Installation
Mound Installation
Waterline Trenching

Let’s work together. Get a quote today.

Ready to start your dream project? Get started by requesting an on-site assessment. Let's transform your property together!

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Step 01

Initial Site Visit

Let's start your project! We'll visit your property to understand your vision, assess your space, and take detailed measurements.

Step 02

Quote & Deposit

We believe in transparent pricing.  Your customized quote provides a clear understanding of costs, and we'll make any necessary adjustments before starting your project.

Step 03

Execution Of Work

Our team efficiently mobilizes your site, prepares the area with safety in mind, and then seamlessly begins executing your project.

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“Koomen's the best, pleased with their work”

We hired Koomen Contracting for a major renovation in January 2021, including basement window enlargement, new windows and doors, siding, and custom metalwork

Cedric Nelson
Calgary, Alberta
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“The previous contractor was just plain unreliable”

When Koomen Contracting came into the picture, they we're very upfront with the situation, and the agreed-upon completion date, and gave good advice on how things can be resolved and done on time.

Annie Legeay
Calgary, Alberta

Our customers say it best

Koomen Contracting believes that customer reviews offer the most authentic and trustworthy insights when choosing a general contractor.

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“Would definitely recommend Koomen to anyone”

Koomen built us a new staircase, painted the walls and ceilings and put a coating on the floor! They is very professional and easy to deal with. I would definitely recommend Koomen Contracting!

Alan Meierhofer
Calgary, Alberta