Custom Home Building & Renovations in Peterborough

Quality built from the inside out.

New Builds, Renovations, and Additions

From start to finish, A. MacDonald Construction will bring your new home to life.

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Why Choose Us...

Experience

With over thirteen years of experience, A. MacDonald Construction also employs A. Bauman Construction as a full time consultant. With over 40 years of experience as a custom builder and business owner, there is a wealth of experience awaiting your project.

Passion for Quality

We love projects that we can be proud of. We want every aspect, seen or unseen, to exceed the highest standards of quality so we can be as proud of your home as you are.

No Shortcuts

With a focus on what is best for you and your home, there are no lengths we won't go to. Doing every aspect right takes priority over doing them "well enough." No shortcuts. Period.

The Business of Building

We push to achieve excellence on site as well as in the office. Having a contractor that manages trades, is organized, efficient, on time, and well documented will save you time, money, and unneeded stress.

About Us

A. MacDonald Construction excels in creating custom homes, handling major renovations, and adding new spaces to your property. Under the leadership of Red Seal Journey Person Alex, our team is committed to delivering quality work with integrity. From the first consultation to the final result, we make sure your project is in safe hands.

Let’s turn your building dreams into reality.

Get a quote

Alex MacDonald working hard on the construction site.

What People Say About Us

"Over the years, we've had the pleasure of working with Alex and his crew on a few projects, including a major multi-month demolition/renovation and construction, and smaller exterior work on our home's exterior. I am happy to strongly recommend Alex to any colleague or friend who is interested in exploring renovations to their homes."

– Jamie & Karolyn
"We hired A. MacDonald Construction to replace our roof, and their team was amazing to work with. They were quick, organized, and kept everything clean throughout the project. Their professionalism and clear communication made the whole process smooth and stress-free. The team was not only kind but also trustworthy and fully certified, giving us complete confidence in their work. We highly recommend them for any custom home building, renovations, additions and more."

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– Sarah May
"From the initial meeting to the completed renovation we were very pleased with A. MacDonald Construction Ltd. and would recommend their expertise to anyone who is looking to having a small to large renovation done for many reasons."

– Y. Bowes
"We would not hesitate to recommend Alex MacDonald as contractor for your project's construction. "

– Allan & Marlene Galbraith

What Services Do We Offer?

Custom New Builds

Whether you're envisioning your dream home or a custom commercial space, we offer complete design and construction services. Our team works closely with you from the ground up, ensuring that your vision is brought to life with precision, quality, and attention to detail.

Additions

Need more space? We provide home and business additions that expand your living or working areas without compromising the original structure. Whether it’s adding an extra room, a new wing, or expanding your garage, we design and build to match the style and function of your current space.

Decks

Extend your living space outdoors with a custom-built deck. Whether it's for relaxation, entertaining, or enhancing your landscape, we design and build decks that are as durable as they are beautiful, tailored to suit your home and lifestyle.

Historical Restoration

Preserving the charm of historic buildings is an art. We specialize in restoring and updating heritage properties while maintaining their original character. Our team is skilled in using period-appropriate materials and techniques, blending modern upgrades with historical accuracy.

Kitchen & Bathroom Renovations

Upgrade the most essential spaces in your home. We specialize in transforming kitchens and bathrooms with custom layouts, cabinetry, modern fixtures, and energy-efficient appliances to improve both function and style.

Basement & Attic Conversions

Maximize your home’s unused spaces by converting basements or attics into functional rooms such as guest suites, home offices, or entertainment areas. Our team handles everything from insulation and windows to flooring and lighting.

Exterior & Deck Renovations

Transform your home’s exterior with our renovation services, including landscaping and custom decks. We create beautiful outdoor spaces that enhance curb appeal and provide inviting areas for relaxation and entertainment.

Full Home & Energy-Efficient Upgrades

For major home transformations, we offer complete renovations, including layout reconfigurations, finish upgrades, and energy efficiency improvements. We also handle structural repairs like foundation reinforcement and roof stabilization, ensuring your home is modern, sustainable, and durable.

Passive Homes

Looking for superior energy efficiency? We can build to Passive House Standards using advanced insulation, vapour barrier technology, specialized building practices, and high-performance windows. Trained by Passive House Canada, we can offer you a home built with airtight construction for maximum comfort and energy efficiency, fully meeting Passive House requirements.

Roofing & Siding Solutions

Protect and beautify your home with our roofing and siding services. We specialize in roof repairs, replacements, and new installations, as well as siding solutions that ensure durability and energy efficiency. Our team uses high-quality materials and advanced techniques to enhance your property’s aesthetic while safeguarding it from the elements.

What Services Do We Offer?

Custom Builds

Whether you’re dreaming of a custom home or cottage, we offer complete design and build services. We handle everything from concept to construction, ensuring your vision becomes reality with high-quality workmanship.

Home Additions

Need more room? We specialize in creating additions that complement your existing space without compromising its structure or style. From expanding living areas to adding new office spaces, we ensure a seamless integration.

Deck Design & Construction 

Transform your backyard with a custom deck built for comfort and style. Whether it’s a place for gatherings or a quiet spot to unwind, we design and construct decks that enhance your outdoor living experience, crafted to complement your home.

Heritage Property Restoration

Preserving historic buildings is one of our specialties. We restore and update heritage properties using traditional techniques and period-appropriate materials, all while adding modern upgrades that maintain the building’s original character.

Kitchen & Bathroom Upgrades

Upgrade your kitchen and bathrooms with our custom renovation services. From sleek designs to energy-efficient fixtures, we create spaces that are both beautiful and functional, customized to suit your lifestyle.

Basement & Attic Transformations

Turn your underused basement or attic into a functional, comfortable space. Whether it's a home office, entertainment area, or guest room, we handle all aspects of the conversion, from insulation to flooring and lighting.

Exterior Upgrades

Give your home a fresh new look with our exterior renovations. From upgrading patios to enhancing entryways and facades, we help you create functional and attractive outdoor spaces that make your home stand out.

Complete Renovations & Energy Upgrades

Looking for a total home makeover? We offer full home renovations, including layout redesigns, finish upgrades, and energy efficiency improvements. We also handle structural repairs, ensuring your home is both modern and sustainable.

Passive Homes

For homeowners focused on energy efficiency, we offer Passive House builds. Our training with Passive House Canada means we provide homes that are airtight, well-insulated, and meet the highest standards of energy efficiency.

Roofing & Siding

Protect your home with our roofing and siding solutions. Whether you need repairs, replacements, or new installations, we use top-grade materials to improve durability, energy efficiency, and aesthetics, ensuring it stays secure and attractive.