Basement Renovations in
Fergus & Centre Wellington
Your basement is the cheapest square footage you'll ever add to your home — you already own the space, the walls and the roof over it. LUMA Build Design turns unfinished, under-used basements across Fergus, Elora, Guelph and the Kitchener-Waterloo area into finished rec rooms, in-law suites, home offices and gyms. Family-owned since 2004, we handle the whole job — design, permits, framing, mechanical, finishes and final walkthrough — so you get a warm, dry, code-compliant space that fits how your family lives.
Finished Basements Built for How Wellington County Families Actually Live
A basement in a 1970s Fergus bungalow has different bones than a new-build in Guelph or Waterloo — ceiling heights, moisture, egress and mechanical layouts all vary.
We start by reading the space you actually have, then design around it: where the rough-in is, how the ductwork runs, whether you need egress windows for a bedroom, and how to keep it warm and dry through an Ontario winter.
The result is a basement that feels like the rest of your house, not an afterthought tacked on below it.
Our Basement Renovation Services
Rec Rooms & Family Spaces
The most common ask: a comfortable, finished living area for movie nights, kids and hosting. We build out flooring, lighting, built-ins and media walls, with proper sound and moisture detailing so it stays comfortable year-round.
Basement Apartments &
Secondary Suites
Whether it's an in-law suite, a rental unit, or space for adult kids, we build legal secondary suites with their own kitchen, bath, egress and separate entrance where the layout allows — designed to meet Ontario Building Code and local zoning from the start.
Home Gyms, Offices & Studios
Remote work and home fitness turned basements into the most flexible rooms in the house. We handle the electrical, ventilation, flooring and soundproofing that make a basement office or gym genuinely usable, not just a finished box.
Basement Bathrooms & Wet Bars
Adding a bathroom or wet bar below grade comes down to plumbing — rough-in location, drainage and venting. We assess what's already there and build out full bathrooms, powder rooms and bar areas that drain and vent correctly.
What Does a Basement Renovation
Cost in Wellington County?
Basement renovation pricing in the Fergus, Guelph and Kitchener-Waterloo area depends on scope more than square footage. A straightforward finished rec room with flooring, lighting and a finished ceiling sits at the lower end.
Adding a bathroom, a kitchenette, egress windows for a legal bedroom, or a full secondary suite moves the number up, because each adds plumbing, electrical, permits and inspections. We give every client a clear, itemized quote up front — no surprise allowances — so you can decide where your budget does the most work.
What Affects Your
Basement Renovation Price
The biggest cost drivers are: whether you're adding plumbing (bathroom, kitchenette or suite); whether bedrooms require egress windows; the condition of the existing foundation and moisture levels; ceiling height and any mechanical relocation; and your finish level.
We walk through all of these during the on-site assessment so the quote reflects your actual basement, not a generic per-foot guess.
Our Basement Finishing Process
1. Design & Permits
We start on-site, measure the real conditions, and design a layout around your goals and your home's existing mechanical and structural layout. We pull the applicable municipal permits and handle the paperwork so you don't have to.
2. Framing, Mechanical & Insulation
Framing, electrical, plumbing, HVAC adjustments and insulation go in, with inspections at each required stage. This is where waterproofing, vapour control and egress are locked in — the parts that protect the finished space for decades.
3. Finishes & Final Walkthrough
Flooring, drywall, trim, paint, lighting, fixtures and built-ins complete the space. We finish with a walkthrough together so every detail is signed off before we call it done.
Basement Renovations Across
Wellington County & the KW Corridor
We're based in Fergus and work throughout Centre Wellington and the surrounding region. For homeowners outside our home base, we have dedicated basement pages for the markets we serve most:
Why Homeowners Choose
LUMA Build Design
Over 20 years of construction experience in Wellington County. Family-owned, with clear communication from the first quote to the final walkthrough.
We handle permits, inspections and the full build under one roof, and we build with energy efficiency and longevity in mind — because a finished basement should be the driest, most comfortable room in the house, not the dampest.
Basement Renovations — Frequently Asked Questions
Q. How long does a basement renovation take?
Most finished basements take four to eight weeks once permits are in hand. Adding a bathroom, kitchen or full secondary suite extends the timeline because of the additional rough-in, inspections and finishes.
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Q: Do I need a permit to finish my basement in Centre Wellington?
In most cases, yes. Finishing a basement, adding a bedroom with egress, or creating a secondary suite typically requires a building permit. We handle the permit application and inspections as part of the project.
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Q: Can you add a legal bedroom or rental suite in my basement?
Often, yes, depending on ceiling height, egress and zoning. We assess whether your basement can meet Ontario Building Code requirements for a legal bedroom or secondary suite before you commit to the design.
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Q: My basement gets damp — can it still be finished?
Usually, but the moisture has to be solved first. We identify the source, address waterproofing and drainage, and build the finish with proper vapour control so the dampness doesn't return behind your new walls.
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My experience with LUMA Build Design and its owners, Luke and Mason, was nothing short of exemplary. I would highly recommend their services to anyone in the Fergus/Elora area looking for an efficient and high-quality renovation.
Mason and Luke from LUMA are very professional. The attention to detail gives the overall project a first class rating. The team was friendly, courteous, knowledgeable and expedient. We are thoroughly happy with the results.
Thanks LUMA for our beautiful custom kitchen renovation!
We appreciate that you worked with our existing space and brought to life our vision including a custom appliance garage, range hood and floating shelves.
We LOVE our kitchen! Thanks again!
Basement Renovations
in Kitchener
Finished basements, rec rooms and secondary suites for Kitchener homeowners.
Basement Renovations
in Waterloo
Basement renovation and finishing across Waterloo, from family spaces to legal suites.
Basement Renovations
in Guelph
Basement renovations and finishing for Guelph homes.
Fergus, Elora & Centre Wellington
Our home turf — basement finishing for Fergus, Elora, Belwood and the wider Centre Wellington area, with local knowledge of the housing stock and the township's permit process.