How to Choose a Roofing Contractor in Canberra

Choosing a roofing contractor is uncomfortable precisely because you cannot inspect the product. You will never stand on the finished job, most of what you are paying for gets covered by the next layer, and the difference between work that lasts twenty years and work that lasts three is usually invisible from the driveway. So instead of judging the roof, you have to judge the contractor.

The good news is that the checks worth doing are quick, they are all things you can verify yourself, and they screen out most of the operators who cause problems. Here is what to look at, in the order we would look at it.

1. Check the Licence Before Anything Else

In the ACT, roofing work above a value threshold must be carried out by or under a licensed builder, and structural work always must be. That is not a formality. An unlicensed job can void your home insurance, it cannot be covered by statutory residential building work insurance, and if the work fails you have far less to stand on.

Ask for the licence number and check it yourself on the Access Canberra construction occupations register. A real contractor will hand the number over without hesitating - ours is ACT Builders Licence No. 2024368, and it is published on every page of this site for exactly that reason.

Two things to watch for. First, an ABN is not a licence; plenty of operators quote an ABN when asked for licensing. Second, a licence held by someone other than the person doing the work only counts if that licensed builder is genuinely supervising the job.

2. Ask What Insurance They Carry, and for What Amount

There are two policies that matter, and they do different jobs.

• Public liability. This covers damage the contractor causes - a dropped bundle of tiles through a skylight, water into a ceiling because the roof was left open before a storm. Ask for the sum insured, not just whether they have it. We carry $20 million.
• Residential building work insurance. Required by ACT law on qualifying residential work. It protects you if the builder cannot complete or rectify the work. On a tile-to-metal conversion or a full replacement, this is the policy that matters most.

Ask for a certificate of currency. It takes a contractor about a minute to produce one, and an operator who cannot has told you something useful.

3. Read the Quote, Not the Number

Most people compare roofing quotes by looking at the total. The total is the least informative part of the document. What separates a quote you can rely on from a number that will move is what it specifies.

A quote worth accepting should name the actual materials (profile, brand, colour, gauge), state the quantities or the area, list what is being removed and who disposes of it, say whether sarking, battens, flashings, valleys and ridge capping are included or excluded, and set out the payment schedule. If it says "supply and install new roof - $38,000" and nothing else, every variation from here is a conversation you will lose.

Watch the exclusions section particularly closely. Timber repairs found once the old roof comes off are the classic one. Nobody can price rot they cannot see, and an honest quote says how that will be handled and at what rate rather than pretending it will not happen.

Get the quote in writing, and get it before any work starts. If you want to see the shape of a proper one, our free roof estimate ends with a written quote and no obligation to proceed.

4. Make Sure Someone Has Actually Been on the Roof

A price given over the phone, from Google Earth, or from the footpath is a guess. It will change. The whole point of an inspection is to find the things that decide the job: the condition of the mortar, whether the sarking is intact, how much movement there is in the battens, whether the valleys have been patched before.

For repair work this matters even more than for replacement, because the visible symptom is rarely where the problem is. Water travels along battens and rafters before it drops through a ceiling, so the stain in your hallway can be several metres from the entry point. That is the difference between roof leak detection and repair and simply resealing whatever looks worst.

If you want the assessment documented rather than verbal, a paid roof inspection gives you a written report with photographs that you can take to any contractor, including ones other than us.

5. Understand What the Guarantee Actually Covers

"Guaranteed" on its own means nothing. Three questions make it real:

1. Is it workmanship or materials? They are separate. Material warranties come from the manufacturer and are usually long. A workmanship guarantee comes from the contractor and is the one that covers installation faults.
2. How long, and in writing where? A guarantee that exists only in the sales conversation is not a guarantee. Ours is a 5-year workmanship guarantee on eligible roof works, and the terms are published.
3. Who honours it? A five-year guarantee from a business that subcontracts everything and rebrands every couple of years is worth what you can enforce.

Note that a guarantee on physical roofing work does not attach to an inspection or an estimate - those are professional services and carry your full rights under Australian Consumer Law instead.

6. Warning Signs Worth Walking Away From

• Door-knocking after a storm. Legitimate roofers in Canberra are usually booked out after hail, not driving around looking for work.
• A price that drops sharply if you sign today. A real quote is a calculation. If it can fall by thousands in a driveway conversation, it was never a calculation.
• A large up-front payment before materials are ordered. Deposits are normal and reasonable. A demand for most of the contract value before anything arrives on site is not.
• Cash-only, no written quote, no paperwork. No invoice means no record, no warranty claim, and no insurance position.
• Vagueness about who is doing the work. Subcontracting is completely standard in roofing. Being unwilling to say who is coming is not.
• Pressure to decide on the spot. A roof is a decade-long decision. Anyone rushing it is protecting their close rate, not your house.

7. Local Knowledge Is Not a Marketing Line in Canberra

Canberra roofs fail in specific ways, and a contractor who mostly works on the coast will not be looking for them.

Frost is the main one. Water sits in ridge mortar, freezes overnight, expands, and cracks it from the inside. That is why re-bedding and ridge capping and re-pointing comes up so much earlier here than in Sydney or Brisbane. Add high-altitude UV that hardens sarking and fades coatings faster, summer hail out of the Brindabellas, and long dry spells that leave gutters packed with eucalypt litter before the first heavy rain, and the maintenance profile of a Canberra roof looks nothing like a coastal one.

There is also a regulatory dimension. Converting a tile roof to Colorbond changes the structural loading of the house, so in the ACT it needs a full Building Approval - a structural engineer, a registered building certifier, licensed builder oversight, and staged inspections. A contractor who offers you a tile-to-metal conversion without mentioning any of that either does not know or is planning to skip it, and both are your problem later.

8. Ask These Six Questions Before You Sign

1. What is your ACT builders licence number?
2. What public liability cover do you carry, and can I see the certificate of currency?
3. Who will actually be on my roof, and are they employed or subcontracted?
4. What is excluded from this quote, and how are unforeseen repairs priced?
5. What does your workmanship guarantee cover, for how long, and where is it in writing?
6. What happens if the weather stops the job halfway through?

None of these are hostile questions. Any contractor who has their affairs in order will answer all six in a couple of minutes, and how they answer tells you more than the answers themselves.

9. Match the Contractor to the Job

Not every roofing job needs the same outfit. A single slipped tile is a roof repair. A tired but structurally sound tile roof is usually a roof restoration rather than a rebuild. A roof at the end of its life, or one with widespread rust or repeated failures, is a roof replacement.

The honest test of a contractor is whether they will talk you out of the bigger job when the smaller one is right. If every roof they look at needs replacing, that is a sales process, not a diagnosis. Our full range is set out on the services page so you can see where your job sits before anyone comes out.

Talk to Leaky Roof

We are Canberra roofing contractors based in Kambah, licensed under ACT Builders Licence No. 2024368, insured, and working across every ACT suburb plus Queanbeyan and the immediately surrounding New South Wales towns, Monday to Friday.

If you want a straight answer about what your roof needs, book a free roof estimate or call the office on (02) 5133 5608, 9am to 5pm weekdays. You will get a written quote, an explanation of why we are recommending what we are recommending, and no pressure to decide on the spot. Our frequently asked questions cover the practical details on pricing, bookings and guarantees.