One accountable team
Our in-house design team, permits, and build crew work under one roof, so design intent carries straight through to the finished space.
Design-build in Oshawa
Second-Storey Additions in Oshawa
Andare Homes designs and builds second-storey additions in Oshawa as one accountable design-build team.
- Licensed, Insured and WSIB-Registered
- Backed by our workmanship warranty
- 5.0 on Google
Get a Quote in Oshawa
Tell us what you need and we’ll get you a quote. Free, no-obligation consultation and site visit with our design team.
5.0 on Google
Over 20 years in business 250+ homes renovated across the GTA Workmanship warranty, we stand behind our work Upfront, honest pricing, no surprises Licensed, Insured and WSIB-Registered Completed to code and Ontario requirements In-house design team, build by one team Serving the GTA and surrounding area
What GTA homeowners say
5.0 · Verified reviews on Google R Raymond Gafoovia Google
★★★★★
Fantastic experience with them! The team was professional, attentive, and delivered high-quality work on time and within budget. Highly recommend for anyone building or renovating their home!
L Luka Stankovicvia Google
★★★★★
Andare took our outdated house and turned it into a modern, functional space. The new addition blends seamlessly with the existing structure.
S Simon Carrionvia Google
★★★★★
Andare did an amazing job renovating my house, they turned an old and boring basement into a modern and exciting place. Their attention to detail was astounding and I couldn't be happier with the results.
P Paul Robinsonvia Google
★★★★★
The attention to detail is incredible. The Andare team has just finished building my home and I'm absolutely blown away. I've been living in here for just under a month now and I still haven't found a single flaw, you can really see their experience and craftsmanship in every part of the home.
I Isa Siddiquivia Google
★★★★★
Our basement went from an unfinished storage space to a fully functional family room. Amazing transformation, 5 stars, 100% recommend.
E Emily Carbonel Toothvia Google
★★★★★
Andare delivered excellent quality and great service. The team was professional and made everything easy.
Why Andare Homes
Second-Storey Additions in Oshawa, done right
Built to last
Quality materials and proven detailing chosen for how you live, finished to the Ontario Building Code and built to hold up for the long run.
Honest, upfront pricing
The price we quote is the price you pay. We scope the work properly before we start, so there are no lowball bids that balloon into surprise change orders later.
Code-conscious
Design, permits, and construction handled in accordance with Ontario requirements and your municipality.
Our Process
Our Process
- 01 Tell us about your project, your goals, photos, ideas, or plans you already have.
- 02 Our in-house design team shapes the design and handles the permits, then we quote and schedule the build.
- 03 Our crew builds it, coordinating every trade so the work runs cleanly and on plan.
- 04 We finish the Oshawa home to the Ontario Building Code, hand it over clean, and stand behind it with our 2-year workmanship warranty.
Local Context
Second-Storey Additions in Oshawa
More than adding a floor
A second-storey addition affects the entire house. The existing structure must be reviewed, the stair location has to work, mechanical systems may need re-routing, and the exterior needs to read as one home after the build.
Andare plans the project around structure, family function, and finished architecture, not just square footage.
In-house design for upper-level living
Before drawings settle, Andare's designers determine whether the new level should hold bedrooms, a primary suite, laundry, bathrooms, storage, or flexible space. They also plan how the stair arrives, how natural light enters the upper floor, and how the new elevation changes the street presence.
Toronto bungalow conversions often need careful choices around ceiling heights, rooflines, side-yard constraints, and how much of the main floor must open to support the work.
Structure and permit coordination
Second-storey work typically requires engineering and permit drawings. Andare keeps structural review tied to the construction plan so load paths, beams, posts, walls, roof structure, and temporary protection are understood before construction begins.
Process
- Feasibility and existing-home review
- Upper-level layout and exterior design direction
- Engineering review and permit planning
- Site protection, demolition, and structural work
- Framing, envelope, services, interiors, and finishes
- Final review and handover
What Andare clients say
We needed more space, so Andare helped us expand while renovating the entire home.
The new addition blends seamlessly with the existing structure.
Professional, reliable, and delivered high-quality work on time and on budget.
Second-Storey Additions in Oshawa: what shapes the work
Oshawa includes older central homes, post-war houses, bungalows, newer north-end subdivisions, townhouses, lake-area properties, and family neighbourhoods tied to the city's industrial and commuter history. Common work includes kitchens, bathrooms, basements, additions, legal-suite review, structural updates, garages, and outdoor living.
Oshawa projects need City of Oshawa and Durham Region review. Toronto rules do not apply. Zoning, parking, grading, servicing, conservation, fire separation, ceiling height, tree impacts, and building permits can affect suites, additions, and major renovations.
Oshawa work often focuses on getting durable value from existing homes: better lower levels, stronger layouts, updated kitchens, added space, and repairs or structural changes that make older houses work for current households.
Andare can help Oshawa homeowners decide what to improve first, how rooms should connect, what finishes make sense, and where structure or permits need consultant review.
Andare supports homeowners in Central Oshawa, O'Neill, McLaughlin, Eastdale, Taunton, Northglen, Lakeview, Kedron, Windfields, and surrounding family neighbourhoods. Andare keeps second-storey additions tied to the home in front of us, not a generic city-wide template.
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Nearby
Second-Storey Additions in nearby areas
We design and build across the GTA. Explore the areas next to Oshawa.
Our Work
View Our Projects See real projects across the GTA
Custom homes, additions, renovations, and multiplexes, designed and built for homeowners, architects, designers, and engineers.
Start your second-storey additions in Oshawa with Andare
Book a consultation with Andare Homes. Our in-house design team and design-build crew plan, design, permit, build, and finish your project as one accountable team, licensed and insured, rated 5.0 stars from 55 reviews.
Backed by our workmanship warranty, we stand behind every job · Licensed, Insured and WSIB-Registered
Send your project details
Tell us what you need and we’ll get you a quote. Free, no-obligation consultation and site visit with our design team.
Second-Storey Additions Near Oshawa
View all service areas →Andare Homes provides second-storey additions, designed and built by one accountable team across the GTA.