Legal Second Unit Specialists — Brampton & GTA

Legal Second Units Built On Time, On Budget — Or We Pay You $4,000.

Most GTA homeowners spend months chasing contractors who miss deadlines, blow budgets, and cut corners on permits. At GSR, you get a fixed price, a fixed timeline, and a written guarantee — before we break a single wall.

See Our Work →

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$600/mo

As Low As Financing available · Subject to approval

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Watch a Real Client

Hear It From Israel

★★★★★ 4.7 / 5

"Goldenstar Renovation is an exceptional and very reliable company. From the start of the project to completion, they demonstrated professionalism, honesty and excellence. Payment was staggered across each stage of the project, making it very easy for us. They kept to the schedule and completed the project earlier than expected. I will recommend them 110%. And oh, the finishing was perfect and the quality is topnotch."

Project Legal Second Unit
Location Brantford, ON
Delivered On time, fully permitted

Israel

Legal Second Unit — Brantford, ON

Verified Client

Sound Familiar?

Why Most GTA Homeowners Struggle to Find a Legal Second Unit Contractor They Can Trust

You're not imagining it. The GTA renovation industry has a reputation problem — and homeowners pay the price.

Problem #1

The Contractor Who Promises Everything — Then Disappears

They show up for the first week, then the calls stop. You're left with a half-framed basement, a paid deposit, and zero answers. Meanwhile, every week that passes is another $500 you're not collecting in rent.

Problem #2

The Quote That Doubles Before the Project Ends

You agreed to $42,000. By the time drywall is up, the invoice is $68,000. "Unforeseen conditions." "Material changes." You feel stuck — too far in to walk away, too far over budget to feel good about it.

Problem #3

The Permit Nightmare Nobody Warned You About

Your contractor skipped or botched the permit process. Now the city is involved, inspections are failing, and your 12-week project is now sitting at month 8 with no end in sight — and no legal unit you can rent.

Problem #4

Quality That Looks Fine Until It Doesn't

The unit passes inspection. You find a tenant. Six months later — cracks in the drywall, water coming through the bathroom, a tenant who's threatening to withhold rent. Your contractor? Nowhere to be found.

The GSR Difference

The Legal Second Unit Contractor That Actually Does What It Says

Every part of our offer is a direct answer to what's broken in this industry. Here's what working with GSR actually looks like.

Our #1 Commitment to You

$4K

Paid to You

Finished On Time & On Budget.
Or We Pay You $4,000.

Before we break ground, you get a fixed timeline and a fixed price — both in writing. If we miss your deadline or go a single dollar over budget, we pay you $4,000. No fine print. No excuses. No exceptions. That's our word and our money on the line — not just a marketing slogan.

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Full Design Package Included

Floor plans, permit drawings, and material selections included with every project. No extra fees.

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3-Year Workmanship Warranty

Every finish and every detail is covered. If something's not right, we come back and fix it.

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10-Year Mold & Leak Warranty

For all bathroom and wet area work. Long-term protection you won't find anywhere else in the GTA.

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As Low As $600/mo Financing

Start your project now and pay over time. Your future tenant's rent can help cover the monthly payments.

Simple Process

How It Works — Start to Legal Unit

Three steps from your first conversation to a fully permitted, rent-ready income suite.

Step 1 — Free & No Pressure

15-Minute Phone Call

We talk through your goals, the space you have, and rough ballpark pricing. No obligation, no sales pitch — just honest answers so you can decide if we're the right fit.

Step 2 — Your Home, Your Quote

Free Site Visit & Fixed Quote

We visit your home, measure the space, and give you a fixed price and a fixed completion date — both locked in writing before a single nail is driven.

Step 3 — Guaranteed Delivery

We Build It. On Time. On Budget.

We handle permits, all trades, and every city inspection. You get a fully legal, rent-ready unit at handover — exactly as quoted, exactly on time. Or we pay you $4,000.

What's Included

Everything Your Legal Unit Needs — No Hidden Extras

Featured Project

MuhammadClient

Legal Second UnitProject Type

Brampton, ONLocation

Full Gut & FinishScope

Permit & Architectural Drawings

Full permit submission and management — you never touch a form.

Fire Separation

All code-required assemblies, egress windows, and fire-rated materials.

Separate Entrance

Side or rear entrance installed for full tenant privacy and legal compliance.

Electrical (ESA-Compliant)

Separate panel, pot lights, outlets, and interconnected smoke alarms.

Plumbing Rough-In & Finish

Full kitchen, bathroom, and laundry plumbing by licensed trades.

Flooring, Paint & Trim

LVP, tile, or carpet — your choice. Baseboards and casing throughout.

View all projects →

Watch & Learn

Get Answers Before You Book a Call

Two short videos covering the build process and what actually drives the cost of a legal second unit.

Inside the Build

How a Legal Second Unit Comes Together

The steps, trades, and decisions behind a fully permitted income suite.

Honest Pricing

What Actually Drives the Cost of a Second Unit

The factors that move your quote — so there are no surprises at the site visit.

Pay Over Time

Finance Your Second Unit.
From $600/Month.

Don't let upfront cost delay your rental income. Flexible financing through Financeit — start building now.

Starting From

$600/month

Flexible financing plan · No prepayment penalty · Quick approval

Cover payments with your tenant's rent
Fixed monthly payment — no surprises
Quick pre-approval process
No prepayment penalty

*Starting at $600/month is a rough estimate. Final monthly payment based on your approved project quote, loan term, and credit profile. Financing provided by Financeit, subject to credit approval.

Learn more about financing →

Common Questions

Questions We Get Every Day

Straight answers — no fluff.

How long does a legal second unit take?

Most projects take 10–16 weeks from permit approval, depending on scope. We lock in your completion date in writing — and we're on the hook for $4,000 if we miss it.

Do you handle permits and inspections?

Yes — completely. We submit the permit, manage the process, and pass all city inspections. You don't touch a single form. Every unit is built to Ontario Building Code.

How much does a legal second unit cost?

Most GTA projects fall between $45,000–$75,000 depending on size and finishes. Fill out our form and we'll give you a rough range for your specific home — no commitment.

What if you go over budget or miss the deadline?

We pay you $4,000. It's written into your contract before we break ground. Not a marketing line — an actual financial commitment that keeps us fully accountable.

Ready When You Are

Stop Losing $2,000/Month.
Let's Build Your Legal Unit.

Answer 5 quick questions and get a rough estimate instantly. Book a call for a free consultation — no pressure, no commitment.

⚡ We take on 4–6 new projects per month — currently booking for Spring 2026

Free phone consultation · Fixed-price quote · $4,000 on-time guarantee · GTA-wide

GSR Basements — Legal Second Unit Contractor
Serving homeowners across the Greater Toronto Area including Brampton, Mississauga, Etobicoke, Toronto, North York, Oakville, Vaughan, and Caledon. All legal second units are fully permitted and built to Ontario Building Code.

Legal Second Units Built On Time, On Budget — Or We Pay You $4,000.

Hear It From Israel

Why Most GTA Homeowners Struggle to Find a Legal Second Unit Contractor They Can Trust

The Contractor Who Promises Everything — Then Disappears

The Quote That Doubles Before the Project Ends