Custom cedar garden shed with double doors and a shingled roof built on a Sarnia property

Services

Custom secondary buildings and four-season rooms in Sarnia

A secondary building should look like it belongs to the house, not like it was dropped in the yard from a big-box parking lot. We build each structure on site and match its roof pitch, siding and trim to the main house.

That covers everything from a garden shed with a proper floor to a lakeside bunkie, heated workshop, Florida room, sunroom, all-season room, outdoor bar or dedicated bar room.

What we build

Secondary buildings we build

  • Garden and storage sheds

    Built on site, framed and sheathed like a house.

  • Bunkies

    Insulated sleeping cabins for lake and cottage properties.

  • Workshops

    Insulated, wired and heated for year-round use.

  • Storage and utility buildings

    Pool sheds, equipment storage, tractor bays.

  • Florida and sunrooms

    Bright additions designed for comfortable seasonal or year-round use.

  • All-season rooms

    Insulated, heated and cooled living space connected to your home.

  • Bars and bar rooms

    Custom indoor or outdoor entertaining spaces with built-in storage and serving areas.

Process

How it works

  1. 01

    Free on-site visit

    We come out, walk the property, take measurements and talk through what you want. Usually half an hour.

  2. 02

    Design and written quote

    You get a clear understanding of what you're getting, pricing in writing, and you're involved in the design process.

  3. 03

    Build

    The owner is on site, is Red Seal certified and won't leave for another job until your project is done. We keep the work area tidy and tell you what's happening next.

  4. 04

    Walkthrough and cleanup

    We walk it with you, fix anything you flag, haul away the offcuts and rake out the ground behind us.

Detail

Materials and build notes

The slab or the skid

A small shed can sit on a properly built skid frame over compacted gravel, which lets it move with the ground. Larger finished rooms need a foundation designed for the structure, the ground and year-round use. Choosing the right base is essential to a building that stays level and lasts.

Matching the house

We copy the roof pitch, siding profile, soffit colour and trim details from the main house. Planning those details at the framing stage makes the finished building look intentional instead of like an afterthought.

Setbacks, coverage and permits

Zoning controls how close you can build to the lot line, how tall the building can be and what percentage of the lot you can cover. Permit requirements depend on the size and use of the structure. We check the zoning before we design so the drawing you approve can actually be built.

Insulation and services

If there's any chance you'll heat it later, insulate and vapour-barrier during the build — retrofitting means tearing out finished walls. We rough in conduit for power and leave a chase for future plumbing when it makes sense.

Recent work

Secondary buildings we've built

Poolside cabana with a covered outdoor bar, TV wall and bar seating beside an inground pool
Cedar-lined cabana bar interior with vaulted ceiling, bar table and stools
Side entry of a poolside cabana with cedar and vinyl siding and pot lighting
Custom cedar door on a poolside cabana storage room
New detached garage with blue siding, white trim and a wide door opening
Cedar garden shed with glazed double doors and a wide gable overhang
Grey garden shed with double doors, gable vent and gravel apron beside a lawn
Glass greenhouse and garden room on a paver base in a landscaped backyard

Questions

Frequently asked

Do I need a permit for a secondary building or addition?
Permit requirements depend on the structure's size, location and intended use. We confirm the requirements with your municipality and handle the application, inspections and required documentation.
How long does a secondary building take?
The schedule depends on size, permits, foundation work and finishes. A simple shed can be completed quickly, while a finished all-season room takes longer. Your written quote includes the expected schedule.
What affects the price most?
Foundation type, size, roof design, and whether the building is finished inside. A loft, dormers, insulated doors, heating and electrical all move the number. Site access matters too — if a concrete truck can't reach the pad, the cost goes up.
Can you build in winter?
Framing and finishing, yes. Concrete pours are weather-dependent and sometimes need blankets or an admixture, which adds cost. Often the best plan is to permit over the winter and pour as soon as the ground allows.
Can you match my existing house?
That's the point of building on site. Bring us the siding name if you have it, or we'll take a sample and match the profile and colour as closely as the supplier allows.

Where we work

Secondary buildings across Lambton County

We build in these towns every year. Pick yours for local detail.

Free on-site visit

Get a straight price

Send us the basics and we'll book a time to come out. We measure the space, talk through materials and put a written quote in front of you. No charge, no pressure.

Prefer to talk? (519) 541-2468

Get a free quote

No obligation — the site visit and the quote are free. By sending this you're asking us to get back to you, so we may call, text or email you about your request. We don't share your details or send marketing. See our Privacy Policy.

Ready to start?

Tell us what you're thinking about and we'll come out, look at the space and give you a straight price. No charge for the visit.

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