

Arthur & Mount Forest's Local Renovation Contractor
Arthur and Mount Forest are growing. New subdivisions, expanding families, rural properties being upgraded — North Wellington County is attracting homeowners who want quality construction without having to import a contractor from the city.
LUMA Build Design is a family-owned general contractor based in Fergus, serving the full Centre Wellington and Wellington County area for over 20 years. We build home additions, custom homes, basement renovations, and major renovations for homeowners in Arthur, Mount Forest and the surrounding rural communities.
We know the local permit process through the Township of Wellington North, the building inspectors in this area, and the practical realities of construction on both subdivision lots and larger rural properties. Whether you're adding a second storey to your Arthur semi, finishing the basement of your Mount Forest new build, or adding a shop and addition to a rural property, LUMA handles the full project from design through permits, construction and final walkthrough.
One team, clear communication, no surprises.
What We Build in Arthur & Mount Forest

Home Additions
Expand your Arthur or Mount Forest home with a rear addition, side extension, or second storey. We assess your existing structure, handle engineering and permits through the Township of Wellington North, and build an addition that looks and feels like it was always part of the house.

The most cost-effective way to double your living space without touching your lot. Popular with growing families in Arthur's newer subdivisions who need more bedrooms and living space but want to stay in their neighbourhood. We handle engineering, permits and construction start to finish.
Second Storey Additions

Garden Suites & Secondary Suites
Add a legal garden suite or secondary suite to your Arthur or Mount Forest property. Larger lots in North Wellington County are ideal for detached garden suites — generating rental income, housing family members, or adding long-term property value. LUMA manages the full project.
Learn more about garden suites →

Basement Finishing & Renovations
Finish an unfinished basement or renovate an existing one. Whether it's a rec room, home office, in-law suite, or additional bedroom, LUMA designs and builds basement renovations in Arthur and Mount Forest to Ontario Building Code standards with quality finishes throughout.

Rural Property & Farm Renovations
Larger rural lots and farm properties need a contractor who understands what construction outside a subdivision actually involves — site access, well and septic considerations, larger structures, and the practical demands of rural Wellington County. LUMA has been building on rural properties across this area for over 20 years.

Custom Home Builds
Building a new home in Arthur or Mount Forest? LUMA designs and builds custom homes from the ground up — timber frame, traditional, or contemporary construction — with the craftsmanship and attention to detail that a custom build deserves. See our custom home work →

Why Arthur & Mount Forest Homeowners Choose LUMA
Serving North Wellington County
LUMA is based in Fergus and has been working across Centre Wellington and Wellington County for over 20 years. Arthur and Mount Forest are part of our regular service area — we're not a GTA contractor making a one-time trip up Highway 6. We know the area, the permit offices, and the local inspectors.
Township of Wellington North Permit Experience
Building in Arthur and Mount Forest means working with the Township of Wellington North for permits and inspections. We know the local process, what documentation is required, and how to keep your project moving without unnecessary delays.
Experience on All Property Types
Building on a lakefront or rural lot comes with challenges that standard residential construction doesn't — site access, septic and well considerations, shoreline setback requirements, and foundation work on varied terrain. We've navigated all of it and know how to keep your project on track.
Full Project Management
Design consultation, engineering coordination, permit applications, all trades management and final walkthrough. You work with one team the entire way through — no juggling multiple contractors across a long drive.
Honest Budgets, No Surprises
Detailed cost breakdown before we start, regular updates throughout, and a clear conversation if anything changes before it affects your budget or timeline.
Building in a Growing Community — Arthur & Mount Forest
Arthur and Mount Forest sit at an interesting point. Both towns are growing faster than they were a decade ago — new subdivisions, young families moving in from larger centres, rural properties being upgraded and expanded. At the same time they've kept the character that makes North Wellington County worth living in.
That growth means more homeowners who need quality renovation and addition work, and fewer local contractors equipped to handle larger projects properly. LUMA fills that gap — a full-service contractor with the experience and crew to handle everything from a basement renovation in Arthur to a custom home build on a
rural Mount Forest property.
We also work with farm property owners across Wellington County. Farm houses that need additions or full renovations, outbuildings being converted to living or working spaces, and rural properties being upgraded for the next generation of the family. If your property is outside town on a rural lot, we know what that build requires and how to do it right.
Whatever your project in Arthur, Mount Forest or the surrounding North Wellington area — we're the local team with the experience to build it properly.
How We Build Your Arthur or Mount Forest Project
Step 1 — Free On-Site Consultation We visit your property in Arthur, Mount Forest or the surrounding area, assess what you're working with, listen to what you're trying to accomplish, and give you an honest picture of what's possible and what it's likely to cost.
Step 2 — Design & Engineering We develop a design that fits your home, your property, and your goals. For rural and larger properties this includes attention to site access, lot coverage, and any engineering requirements for the structure.
Step 3 — Permits & Approvals We manage the full permit application with the Township of Wellington North. We know the local process and how to keep things moving efficiently from application through to permit issuance.
Step 4 — Construction Your project is built by our experienced crew to the quality standards that have earned LUMA its reputation across Wellington County. Single point of contact, regular updates throughout the build.
Step 5 — Final Walkthrough We walk through every detail with you before we consider the project complete. Everything needs to meet your expectations — and ours.

Frequently Asked Questions — Home Additions & Renovations in Arthur & Mount Forest
Q: Do I need a permit for a home addition in Arthur or Mount Forest?
Yes. Any structural addition or significant renovation in Arthur or Mount Forest requires a building permit through the Township of Wellington North. Requirements vary based on the type and size of the project. LUMA manages the full permit application on your behalf, including any engineering documentation the township requires.
Q: How much does a home addition cost in Arthur or Mount Forest?
Costs vary based on type, size, and finish level — the same as anywhere in Wellington County. A single-room rear addition typically starts in the $150,000–$250,000 range. A second storey addition ranges from $250,000 to $450,000+. Basement renovations typically range from $50,000 to $120,000 depending on scope and finish. We provide a detailed estimate after a site visit with no hidden costs.
Q: Do you work on rural and farm properties outside Arthur and Mount Forest?
Yes. LUMA regularly works on rural properties and farm homesteads across Wellington County. Rural builds have different practical requirements than subdivision construction — larger structures, site access, well and septic considerations, and often more complex permitting. We have the experience and equipment to handle rural projects properly.
Q: Can I add a garden suite to my property in Arthur or Mount Forest?
In most cases yes. Ontario's More Homes Built Faster Act (2022) expanded secondary suite permissions across the province including Wellington North. Larger lots in Arthur and Mount Forest are often well-suited to detached garden suites. LUMA can assess your specific property, confirm what's permitted under current zoning, and handle the full design and build.
Q: How far do you travel for projects in North Wellington County?
We regularly work in Arthur, Mount Forest, and the surrounding rural Wellington County area. These communities are part of our established service area — not one-off jobs requiring a travel premium.
Q: Do you also do kitchens, bathrooms and other renovations in Arthur and Mount Forest?
Yes. In addition to home additions and custom builds, LUMA does full home renovations, kitchen renovations, bathroom renovations, basement finishing, deck and exterior builds, and heritage restorations across Wellington County including Arthur and Mount Forest.
Satisfied Homeowners
"I went with Luma Design after getting quotes from several other companies. Not only was Luma’s price very competitive, but they were also the easiest to communicate with, and the job was completed on time. I’ll definitely be coming back to them for future projects."
"LUMA helped us with our Secondary Suite in Fergus Ontario. We needed additional space in our home so a home addition was the best option. LUMA's team and trades were professional and also worked with us.
Mason and Luke took time to go through options and explain why or why not to certain ideas and options. That was something as a home owner I really appreciated they talked to us normally not like we were clueless."
We had a great experience working with Mason and Luke on our renovation. They are friendly, professional, and we're completely happy with the excellent quality of work.
We wouldn't hesitate to recommend them to any of our friends and family, and we will work with them again if we have a new project.
Home Addition Contractors Across Wellington County & Centre Wellington
LUMA Build Design serves homeowners and property owners across Centre Wellington and Wellington County. Wherever your project is located, our team brings the same craftsmanship and local knowledge.
Ready to Build in Arthur or Mount Forest?
Whether you're planning a home addition, finishing a basement, or building a custom home on a rural Wellington County property, let's start with a conversation. We offer free, no-obligation estimates for projects in Arthur, Mount Forest and across North Wellington County.
