Custom home additions — second storeys, rear extensions, sunrooms, and garage additions — that add space and value to your Windsor-Essex home.

Custom home additions — second storeys, rear extensions, sunrooms, and garage additions — that add space and value to your Windsor-Essex home. Every home additions project we undertake across Windsor-Essex is executed with meticulous attention to detail, premium materials, and manufacturer-compliant methods that stand the test of time.
A transparent breakdown of exactly what our home additions service includes, from preparation through final finishing.
Addition design that blends with your home's architecture, structural engineering for foundation and framing, and full permit drawings.
Excavation and foundation for the addition, with structural tie-in to the existing foundation and framing for a seamless connection.
Wall and roof framing tied into the existing structure, with proper load paths, flashing, and weatherproofing at the junction.
Drywall, flooring, and finishes matched to the existing home, with seamless transitions so the addition looks original to the house.
Five clear stages from first conversation to final walkthrough.
We visit your Windsor area home, take precise measurements, and discuss your vision, materials, and budget in detail.
You receive an itemized, fixed-scope proposal with materials, labour, timeline, and any subfloor prep clearly broken out.
We level, repair, and moisture-test the subfloor so the finished floor performs for decades — not just on day one.
Our trades install to manufacturer spec with daily clean-up and direct communication from James throughout.
A joint punch-list walkthrough ensures every detail meets our standard, backed by our workmanship guarantee.
Typical timeline: 6-16 weeks depending on scope
One-room ground addition, foundation to finish (6-8 weeks)
Multi-room extension, full tie-in (8-12 weeks)
Full second storey, structural reinforcement (12-16 weeks)
All options are customized to your project. Final scope and timeline provided after on-site assessment.
Yes, all home additions require a building permit, and most require plumbing, electrical (ESA), and sometimes Committee of Adjustment approval for setbacks. We handle the full permit process with the City of Windsor, including drawings, engineering, and all inspections.
Yes, if your existing foundation and walls can support the load — we assess this with a structural engineer. Second storey additions require temporary relocation during framing and roof work. It's a major project but can double your living space without moving.
We match brick or siding, roof pitch, window style, and trim details so the addition looks original to the house. Interior finishes — flooring, baseboards, door heights — are blended at the transition. The goal is a seamless connection that adds value without looking like an add-on.
Book your free on-site measurement and quote with James Greenwood today.
Complimentary Consultation
Tell us about your project in a few tailored steps. James Greenwood will personally respond within 24 hours.