A Basement Renovation Contractor
Kitchener Homeowners Can Rely On
Your basement is the most cost-effective square footage you can add to a Kitchener home — the structure is already there. The difference between a basement that feels like a finished part of the house and one that feels like a damp afterthought comes down to how the work is done: moisture control, insulation, lighting and layout.
LUMA Build Design is a family-owned general contractor based in Centre Wellington, and we've been finishing basements across Kitchener, Waterloo and the surrounding region for over 20 years. From older neighbourhoods near downtown and the east end to newer subdivisions in Doon, Huron Park and Williamsburg, we know the local housing stock and how to build a basement that lasts.
We manage the full project — design, permits through the City of Kitchener, and all trades including plumbing, electrical, framing, insulation and finishes. One team, one point of contact, from demolition to final walkthrough.
Basement Renovation Services in Kitchener
Finished Basements
& Rec Rooms
The most common project: a comfortable, fully finished living area for movie nights, kids and hosting. Flooring, lighting, built-ins and media walls, with the moisture and sound detailing that keeps the space comfortable year-round.
Basement Apartments
& Legal Suites
In-law suites, rental units and additional dwelling units built to code — with their own kitchen, bathroom, egress and separate entrance where the layout allows. Designed to meet Ontario Building Code and City of Kitchener zoning from the start.
Home Gyms, Offices & Studios
The electrical, ventilation, flooring and soundproofing that make a basement office or gym genuinely usable — not just a finished box. Built for how you actually plan to use the space.
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 full bathrooms, powder rooms and bar areas that drain and vent correctly.
Legal Basement Apartments
& Secondary Suites in Kitchener
With Kitchener's housing demand, a basement apartment is one of the smartest ways to add long-term value or rental income to your home. The City of Kitchener allows additional dwelling units, but a legal basement suite has to meet Ontario Building Code and the city's zoning rules — minimum ceiling height, proper bedroom egress, fire separation between units, a compliant separate entrance, and parking requirements.
We design and build legal basement suites that meet those standards from day one, and we handle the permit application and inspections through the City of Kitchener.
Before you commit to a design, we assess whether your basement can meet the requirements — so you know exactly what's involved and what it's worth, with no surprises once the work starts.
Why Kitchener Homeowners Choose LUMA for Basement Renovations
One Team, Full Scope
Plumbing, electrical, framing, insulation, tile, cabinetry — all coordinated by LUMA. You have one point of contact from demolition to final walkthrough. Nothing falls between the cracks.
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20+ Years Across the KW Corridor
Over two decades of basements and major builds across Kitchener, Waterloo, Guelph and Centre Wellington. We know what materials perform below grade and what workmanship actually lasts.
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Moisture & Waterproofing Done Right
A finished basement is only as good as what's behind the walls. We identify and solve moisture, drainage and vapour issues before any finishing goes in — because the most expensive basement renovation is the one you have to tear out and redo.
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Permits Handled
Finishing a basement, adding egress, or building a legal suite requires permits through the City of Kitchener. We know what's required, file the paperwork and manage inspections — you don't navigate that alone.
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Honest Pricing, No Surprises
A detailed quote before work begins. No costs added mid-project without a direct conversation first.
How a Basement Renovation Works With LUMA
Step 1 — Free Consultation
Free Consultation We visit your Kitchener home, look at the space, listen to what you want to accomplish, and give you an honest picture of what's possible within your budget.
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Step 2 — Design & Selection
We handle any permits required through the City of Kitchener and schedule all trades in the right sequence so your project runs efficiently.
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Step 3 — Permits & Scheduling
Permits & Scheduling We handle any permits required through the Township of Centre Wellington and schedule all trades in the right sequence so your project runs efficiently.
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Step 4 — Renovation
Framing, waterproofing, insulation, plumbing, electrical, drywall, flooring, cabinetry and finishes — all managed in the correct order with no delays from uncoordinated trades.
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Step 5 — Final Walkthrough
Every finish, fixture and function checked before we hand the space back to you.
Frequently Asked Questions —
Basement Renovations in Kitchener
Q: How much does a basement renovation cost in Kitchener?
Costs depend on size, scope and finish level. A basic finished rec room with flooring, lighting and a finished ceiling typically starts around $35,000–$55,000. Adding a bathroom moves it to roughly $55,000–$85,000. A full legal basement apartment with its own kitchen, bath and separate entrance typically starts around $90,000 and up. Detailed quotes are provided after a free on-site consultation. → Confirm/replace these figures with your real pricing before publishing.
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Q: Do I need a permit to finish my basement in Kitchener?
In most cases, yes. Finishing a basement, adding a bedroom with egress, or creating a basement apartment requires a building permit through the City of Kitchener. We assess what's required and handle the application and inspections.
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Q: Can you build a legal basement apartment in Kitchener?
Often, yes. The City of Kitchener allows additional dwelling units, subject to ceiling height, egress, fire separation, separate entrance and parking requirements. We assess whether your basement can meet Ontario Building Code and city zoning before you commit to a design.
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Q: How long does a basement renovation take?
Most finished basements take four to eight weeks once permits are in hand. Adding a bathroom or a full legal suite extends the timeline because of the additional rough-in, inspections and finishes.
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Q: My basement leaks or feels 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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Q: What areas do you serve for basement renovations?
LUMA renovates basements in Kitchener, Waterloo, Cambridge, Guelph, Fergus, Elora and the surrounding Centre Wellington and Wellington County area.
Satisfied Homeowners
LUMA replaced our walk-in shower. Everything about the renovation was perfect. From beginning to end, Luma kept us updated throughout.
His response time to any question we had was immediate. The renovation itself turned out better than we had hoped for. We would not hesitate to recommend LUMA, and will definitely be using them for any future projects. Thank you Luma for such a great renovation experience.
I just had my ensuite done by these gentleman as well as an exterior retainer wall and deck in Elora. I can't recommend them enough! The moment my husband and I reached out to LUMA we knew we had found our builder.
Whether you speak with Mason or Luke, you'll be greeted with a smile and a friendly email or phone call.
We are absolutely thrilled with our tub to walk-in shower renovation. This is definitely the smoothest renovation we have ever experienced!
The team is professional, timely and incredibly skilled. Every detail was handled with care and communication was seamless.
The final result exceeded our expectations. We would highly recommend LUMA Build Design to anyone looking for quality work and outstanding service.
Basement Renovation Contractors Across the Kitchener-Waterloo Area
LUMA Build Design finishes basements across Kitchener, Waterloo, Guelph and Wellington County. Wherever you're located, our team brings the same craftsmanship and full-scope project management.