About Us

A General Contracting Company, But a whole lot more...

MLC BUILD is a smalll group of professionals that renovate, build and design projects to help homeowners construct their dream home.The highly-skilled team knows the craft of better building and tries to improve every day by adopting new technologies and best practices. To us, quality starts with our people, and we believe in doing only the best.

One of our core beliefs at MLC BUILD is that to live better, we need to build better. At MLC BUILD, we enjoy what we do. While our project focus are complete home renovations, we are happy to discuss a new custom home and small-scale projects. We stay up to date of the latest technology and use those proven for our projects.

Maple Leaf Construction

Who We Are

MLC BUILD was established in 2006 when its owner, Paul Oscar Trepanier, LEED AP, transplanted to Washington DC. He had a very early start swinging a hammer working for his father's construction company at 14. A few years later, he and his brother had their own paint contracting service, during summer months, with referrals from a local real estate company. After attending college and then the University of Toronto, he worked in engineering field of quality control and system implementations during the construction phase of Canadian nuclear power stations.

MLC BUILD is a working trade name under the parent company, Maple Leaf Construction, because we think it’s just a little cooler.

The Process

At MLC BUILD, we follow a detailed process.

  • Consultation
  • Planning
  • Pre-construction planning
  • Consultation
  • Planning
  • Pre-construction planning
  • Design & budget discussion
  • Site construction
  • Wrap-up
  • Design & budget discussion
  • Site construction
  • Wrap-up
Maple Leaf Construction


To begin, please fill out our contact form as this is the best way to start our conversation, and it also helps us stay in communiqué throughout the early process.


Planning will start by connecting the client and design team together to develop the design and acquire the budget. If the project goes forward, we will receive a pre-construction retainer, and then we move forward in the Proposal Phase.

  • Accurate construction budget
  • Material schedule
  • Construction schedule

We will then discuss the project and find out if we are the right fit for the project. A discussion will also be carried out about the potential costs to see if our schedules align. We will also determine if your budget and time frame aligns with ours for your project.

Pre-construction Planning

Once the following factors are determined and support one another, we will carry out the pre-construction planning.

  • Budget
  • Schedule
  • Scope

The initiation of pre-construction planning involves discussion with the following team.

  • Architect
  • Builder
  • Interior designer

This relationship strives to keep the budget in line as the design unfolds while work commences with our trade partners, suppliers, and estimators to begin pricing the project. In proceeding with this stage, we will collect a retainer for these services, which is tracked and billed hourly and applied to our construction management fee.

Maple Leaf Construction

Design & Budget

The MLC BUILD team meets the client to present our design and budget proposals to reflect the scope. If at any time, the budget does not align with our scope, we present another proposal with options to control costs.

Our team will also include a 17% contingency in the budget for renovation work to cover any possible unforeseen conditions. Discoveries or requested changes, exceeding the contingency is based on work tracking costs. From previous experience, there are often unexpected areas of work discovered when the structure is opened, so how we adjust to problematic conditions directs how we may move forward with the project.

Site Construction

Before site construction, the final design is complete.

Each phase of construction is often dependent on the previous stage so that we can focus on the result. It can be viewed as picturing the result and working backward to achieve that result. That said, any changes in design or material selections at this point can add significant costs to the project.

The project manager will work onsite and holds weekly meetings with the team back at the office. Any changes to the initial scope of work will be documented in the change order process. Please note that any change orders will affect the schedule.

Maple Leaf Construction
Maple Leaf Construction

Do better...

We want the out-right best for our clients. Quality control, the latest technologies, and best practices are vital to us.

Although MLC BUILD is a boutique firm, we work with many of the same trades and professionals as the larger contracting companies in northwest Washington, D.C.

Fun Facts: MLC BUILD does not use nails when framing, or any other process, in building your home. Instead, we use screws and fastening equipment by Simpson, GRK, SPAX, or DeckMate, which are often combined with adhesives, to ensure permanently tight connections.

I do not know if this is always fun, but at MLC BUILD we overbuild. We over build framing. We over screw drywall and wall coverings. We use our Festool Domino machines for our finish wood connections, from casework, to stair treads, and more. It seems we just go a little overkill on everything to ensure the integrity of your home.

Safety Measures

Especially in these times of a global COVID 19 pandemic, safety is an important concern.

MLC BUILD always has and always will treat your home, like it is our home, and your safety is job one.

We have often worked with families choosing to live onsite through a major renovation, though not always recommended or cost-effective, we can determine a site plan to mitigate dust and debris, as well, as providing the extra required man power and equipment for daily set up and clean-up.

We utilize the latest tools to control airborne dust and to keep the site clean and protected.

  • Build Clean air scrubbers, which we often utilize as negative pressure machines, exchange the air though a two-stage Hepa-filter system and at required rates per hour based on the type of work being performed.
  • Festool Hepa-vacuuming systems. Not only are these German made vacuums amazing when connected to our vast array of Festool Tools, but, they are our go to system for cleaning the job site, and especially important in cleaning all wall and floor cavities before final enclosure. In fact, the Festool Planex system for sanding after our Level V drywall finishing is almost dust free
  • Temporary walls. To isolate work areas, especially when creating dust and debris, MLC BUILD will either build temporary walls or utilize the ZIP Wall system.
  • COVID 19. Currently, MLC BUILD installed job site health monitoring stations to record temperature and activities of all visitors on job sites, air exchangers, disinfectant and hand sanitizers stations, as well as, access controls for social distancing purposes.

If a client's family decides to occupy a home during a major renovation project, it will significantly affect the schedule and the project costs, as well as, worker access hours. Based off experience, we will add a contingency 10% fee to the estimate to offset costs. However, we will monitor the costs for the associated material and bill hourly for the service exceeding the contingency fee.


During construction, daily communication is essential, so we collaborate with all onsite staff members to make sure the project progresses as planned. You will work directly with the project manager and/or lead carpenter while following a project schedule generated during the Planning Phase.

It is essential to stay on schedule as all line items and costs are affected by the other line items.

Maple Leaf Construction


At Maple Leaf Construction, we follow a punch list.

Punch List

We create our initial punch list before the end of the project to catch all minor issues.

We schedule a meeting with the architect, project manager, and owner to review this punch list and add items that come up during that meeting. This meeting is held onsite between the homeowner, architect, and builder, walking through the project entirely.

We create a formal punch list with target completion dates, once all items are agreed to be complete final payment is due. Any additional items shall be handled during the warranty period. We will coordinate with the homeowner, after final cleaning, to schedule the property turnover of your new home.

Our Warranty

  • We offer a two-year workmanship warranty that is active after the total payment for the project is made. The product warranties are per manufacturer product, and though we cannot warranty someone else’s product, we’ll assist the homeowner in accessing the manufacturer’s warranty of products. Product repair or replacement are tracked and billed hourly.
  • MLC BUILD also offers a yearly home care plan, where, working with our trade partners, we will keep your home maintained for you. We can discuss possible variations to adjust a plan to fit your requirements.

Join the Team

Makes Us Better.

We want to be inspired by you! We are always looking for experienced people who bring in passion about the work, as well as, help us to become better at the craft. A positive attitude is cool. Someone always looking to update their knowledge and introduce new concepts is essential. If you want the opportunity to grow as part of a team, let’s start here.

Maple Leaf Construction

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