Home Addition Framing Thornhill — Licensed, Insured & 5-Star Rated
Home Addition Framing Thornhill: Second-floor additions, rear additions, side additions, garage conversions, and in-law suite framing in Thornhill. Fully licensed. WSIB registered. $5M liability insurance. 5.0 on Google and HomeStars.
Thornhill's Experienced Addition Framing Contractor
Home addition framing in Thornhill covers second-floor additions, rear additions, side additions, garage conversions, and in-law suite framing built to Ontario Building Code and left inspection-ready.
Home Addition Framing Thornhill needs clean layout, code-aware framing, and an inspection-ready handoff from the start. Thornhill is one of the most established residential areas in the GTA, with neighbourhoods spanning from the historic village core along Yonge Street to the Bathurst corridor and the Promenade area. Much of the housing stock was built in the 1970s and 1980s — and homeowners are investing heavily in additions to modernize and expand.
Timberr Framing is a fully licensed home addition framing contractor serving Thornhill and the surrounding communities. We frame second-floor additions, rear additions, side additions, garage conversions, and in-law suites — all built to Ontario Building Code and left inspection-ready.
We carry $5M in liability insurance, are registered with WSIB, and hold a 5.0 rating across 40 Google reviews and 11 HomeStars reviews, and have extensive experience working on the types of homes that define Thornhill — including bungalows getting full second-floor additions and split-level homes receiving rear kitchen extensions.
Thornhill homeowners often face a choice: sell and move, or add the space they need to a home they already love. A well-framed addition is the foundation of that decision. It needs to integrate with the existing structure, meet current code, and set up every trade that follows for success.
Whether you are raising the roof on a bungalow, pushing out the rear for a modern open-concept kitchen, or building a self-contained in-law suite — Timberr Framing delivers house addition framing in Thornhill that is built right the first time.
Browse what we offer below — or contact us now if you already know what you need.
Our Addition Framing Services In Thornhill
Second-Floor Addition Framing
Complete structural framing for second-floor additions — including new floor systems, load-bearing walls, roof framing, and structural tie-ins to your existing home. We work with your architect and engineer to execute the plan with precision.
In Thornhill, second-floor additions on bungalows are one of the most common projects we take on. The existing foundation and first-floor framing must be assessed for load capacity — older homes may require reinforcement. Timberr Framing evaluates the full scope and frames accordingly.
Rear Addition Framing
Rear additions are the go-to solution for Thornhill homeowners who want more space without changing their front elevation. We frame rear bump-outs, kitchen extensions, family room additions, and full-width rear builds — properly tied into your existing structure.
Rear kitchen extensions are especially popular in Thornhill's older neighbourhoods, where original kitchen footprints are too small for modern living. All rear addition framing is completed to Ontario Building Code.
Side Addition Framing
Side additions extend your home into the side yard for additional square footage. In Thornhill, lot widths and municipal setback requirements vary by neighbourhood — particularly between the Vaughan and Markham sides.
Timberr Framing handles the structural framing for side additions of all sizes — ensuring proper integration with your existing structure.
Garage Conversion & Addition Framing
Converting an existing garage into living space or building a new attached garage addition requires structural framing that meets code. In Thornhill, many older single-car garages are prime candidates for conversion into a main-floor living space or home office.
We frame garage-to-suite conversions, garage additions with second-floor living space, and standalone garage structures. All work is inspection-ready.
In-Law Suite & Secondary Suite Framing
In-law suites and secondary suites are in growing demand across Thornhill. Whether you are building a basement suite, a ground-floor addition, or a second-floor unit, the framing must meet Ontario Building Code requirements for separate dwelling units — including fire separation, egress, and sound isolation framing.
Timberr Framing understands the code requirements for secondary suites and frames accordingly.
Why Choose Timberr Framing for Your Thornhill Addition
When you are investing in a home addition in Thornhill, the framing contractor you choose determines whether the rest of the build proceeds smoothly or becomes an ongoing series of corrections.
- Fully licensed addition framing contractor — licensed across Ontario
- $5M liability insurance — full coverage on every project
- 5.0 Google rating — 40 verified reviews
- 5.0 HomeStars rating — 11 verified reviews
- Experience with 1970s-80s housing stock — we know the framing methods used in Thornhill’s established homes
- Structural tie-in expertise — we connect new framing to existing structures correctly
- On-time delivery — clear scheduling and direct communication
- Clean job sites — organized crews who respect your property and your neighbours
How It Works
Contact us by phone or through the form at the bottom of this page. We review your addition plans, visit your Thornhill property to assess the existing structure, and provide a detailed written quote with no obligation.
We confirm structural plans, material requirements, and schedule with you or your GC directly. If structural engineer coordination is needed — particularly for second-floor additions on older homes — we handle that communication.
Our licensed crew arrives on schedule and frames your addition to spec. We manage structural tie-ins to your existing home, coordinate deliveries, and keep you updated throughout. Every stage is checked against your plans before we move forward.
All addition framing is completed to Ontario Building Code and ready for inspection. We do not hand off until the structure is right — and we support the inspection process as needed.
Frequently Asked Questions — Home Addition Framing Thornhill
What is the cost of home addition framing in Thornhill?
Addition framing costs in Thornhill vary based on the addition type, square footage, and structural complexity.
Rear additions tend to be the most cost-effective framing project. Second-floor additions — particularly on older bungalows — cost more because the existing foundation and first floor must be evaluated and potentially reinforced.
Garage conversions and in-law suites vary with scope. For a reliable estimate, contact Timberr Framing for a free detailed quote. We assess your home and plans before providing a number.
Is Timberr Framing licensed for addition framing in Thornhill?
Yes. Timberr Framing is fully licensed to perform all types of home addition framing across Ontario, including Thornhill.
We carry $5M in liability insurance, are registered with WSIB, and build in full compliance with Ontario Building Code on every project. Licensing and insurance documentation is available on request.
What addition types do you frame?
We frame all types of residential additions:
- Second-floor additions — full upper storey builds on bungalows and other homes View details
- Rear additions — bump-outs, kitchen extensions, family room builds View details
- Side additions — extending into your side yard View details
- Garage conversions and additions — garage-to-living conversions, new attached garages
- In-law suites and secondary suites — separate dwelling units within your home
If your project involves structural framing for a home addition, contact us to discuss.
How long does addition framing take?
A standard rear addition frame takes approximately one to two weeks. A full second-floor addition — common on Thornhill bungalows — runs two to four weeks depending on complexity and size.
Timberr Framing provides a clear schedule at the quoting stage so you know what to expect.
Do I need a structural engineer?
Yes. Adding a second floor requires structural engineering to confirm the existing foundation and first-floor framing can support the new load. Older Thornhill homes may need reinforcement, which the engineer will specify.
Timberr Framing coordinates directly with structural engineers and frames to their specifications. We ensure the work is ready for inspection.
Can you tie a new addition into an older home's frame?
Yes — and this is where experience matters. Thornhill has many homes built in the 1970s and 1980s with framing methods that differ from current standards. A proper tie-in requires understanding both the original framing and today's code requirements.
Timberr Framing specializes in structural tie-ins between new additions and existing homes of all ages.
Do I need a building permit for framing?
Yes. Any home addition requires a building permit before construction begins. Depending on which side of Yonge Street your property sits, your permit comes from either the City of Vaughan or the City of Markham.
Timberr Framing builds every addition to Ontario Building Code and ensures all work is inspection-ready. Permits are typically handled by the homeowner or GC.
Do you work with builders and general contractors?
Yes. Timberr Framing regularly works as a framing subcontractor for general contractors managing addition projects in Thornhill.
We coordinate well with other trades and understand the scheduling demands of residential renovation projects. If you are a GC who needs a reliable framing sub, contact us.
What areas do you serve?
Timberr Framing provides home addition framing in Thornhill and nearby areas including Vaughan, Markham, and Richmond Hill.
If your project is in an area not listed, use the form below and we are happy to discuss.
---Get a Free Addition Framing Quote in Thornhill
Tell us about your addition project and we will respond within one business day.
What Happens Next
- We review your project details within one business day.
- We contact you to confirm scope, timing, and site conditions.
- You receive a clear framing quote with no obligation.
Licensed, insured, WSIB-registered, and backed by 5-star reviews.
Call Us
(416) 236-6744
Email Us
timberrframing@gmail.com