How to hire a siding contractor without getting burned

Siding is a large purchase most homeowners make once or twice in a lifetime, which means almost nobody hiring one is an informed buyer. Ten minutes of checking before anyone starts work eliminates most of the risk.

Verify three things before anyone comes out

The licence, in their name. Ask for the number and look it up yourself with the state or local licensing board. It takes a couple of minutes and it is public information.

Insurance, sent directly from the insurer. Ask for a certificate that comes from their carrier, not a PDF forwarded from their own inbox. General liability and workers' compensation both matter — if someone is hurt on your property and there is no comp coverage, that can become your liability.

A real, checkable business address. A PO box and a mobile number answered by a different name each time is a pattern worth noticing, especially after a storm has come through the area.

The lines that should end the conversation

“Half down to get on the schedule.” A third of the total is a common, reasonable ceiling. More than that and you are effectively financing the contractor's next job.

“We don't need a permit for this.” You need it on record for resale and for insurance purposes. The work should be inspectable, and a permit is what makes that possible.

“This price is only good today.” A real number holds for a week without changing. Urgency in place of a written scope is a sales tactic, not a discount.

“We'll just go over the old siding, no need to look underneath.” Sometimes legitimate. Also the easiest way to seal existing rot behind a fresh wall for another twenty years.

What belongs in the contract

Scope written in specifics, not adjectives — the exact material, the house wrap product, and whether trim, soffit and fascia are included or priced separately. A payment schedule tied to milestones rather than calendar dates. A named per-sheet rate for any rot found at tear-off, agreed before work starts rather than negotiated afterward. Who pulls the permit, by name. Disposal method. And the workmanship warranty term, in writing.

None of this is an unusual ask. Watch how a contractor reacts to being asked for it — the reaction tells you more than the answer does.

The warranty question nobody asks

There are two warranties on a siding job and people routinely conflate them. The manufacturer warranty covers defective material and prorates heavily after the first several years. The contractor's workmanship warranty covers installation, and that is the one that actually matters, because most siding failures trace back to how it was installed rather than a defect in the panel itself.

Ask specifically how long the workmanship warranty runs, what voids it, and whether it transfers to a new owner if you sell the house.

How to compare three quotes that do not look alike

The reason quotes are hard to compare is almost never the price. It is that no two of them describe the same job. One includes trim and soffit, one prices it separately, one does not mention it. One assumes the old panels come off, one assumes new siding goes over the top. Until the scope matches, the numbers are not comparable and the cheapest quote is usually just the least complete one.

The fastest fix is to normalise them on paper. For each quote, write down the same eight lines: measured square footage, material and product line, house wrap product, whether trim, corner posts, soffit and fascia are included, the agreed rate for rot found at tear-off, who pulls the permit, how debris is disposed of, and the workmanship warranty term. Most of the spread between quotes collapses once those eight lines are filled in.

There is an easier version of the same move. Take whichever quote is written in the most detail, strip the price off it, and hand that scope to the other contractors to bid against. Then you are comparing companies rather than comparing paperwork.

When one number still sits far below the others after all that, the useful question is not why are you cheaper — it is which of these eight lines does your price not include. That version gets a specific answer.

Find out who is actually doing the work

The company that sells the job is not always the crew that shows up. Work gets subcontracted throughout this trade and that is not inherently a problem — plenty of subcontracted crews are excellent and plenty of in-house ones are not. What matters is that you know which arrangement you are buying before the truck arrives.

Ask whether the installers are employees or subcontractors, and if they are subs, who carries workers' compensation on them. Ask how many jobs the crew will be running at the same time as yours, because a crew split across three houses is the usual reason a one-week job takes three. Ask for a single named point of contact for problems, rather than a general office line.

Then ask the question most homeowners never think of: will someone from the company be on site at tear-off. That is the hour when the real decisions get made — what the sheathing underneath actually looks like, whether flashing gets replaced or reused, how much soft wood is coming out. A salesperson who has not seen the wall open cannot tell you what was found.

Finally, ask what happens if weather moves in with a wall already opened up. The answer you want involves wrapping and sealing the exposed wall the same day. An open wall left overnight in rain is how a siding project turns into a water damage claim.

Pay in a way that keeps your leverage

Money is the only real leverage a homeowner has, and the common mistakes all involve giving it up too early. Keep the deposit modest, tie the rest to milestones you can actually see — tear-off complete, wrap and flashing in, siding hung, trim and cleanup done — and hold a meaningful final payment until after the walkthrough rather than after the last panel goes up. A small final payment is not leverage; a punch list gets finished when real money is still attached to it.

Pay by a traceable method. A check or a card creates a record of what was paid and when, which matters if there is ever a dispute about whether a stage was paid for. Cash on a job of this size mostly benefits the person receiving it.

Ask for a lien waiver with each payment. If a contractor takes your money and does not pay their own supplier or crew, those parties can in many places file a claim against your property even though you paid in full. The waiver is the document that says they have been paid and have no further claim. Asking for one is routine on commercial work and unremarkable on residential work.

If the contractor offers financing, treat it as a separate decision from the siding decision. Find out who the actual lender is, what the term and rate are, and what the total repayment comes to — not just the monthly figure the salesperson leads with.

The walkthrough at the end is part of the job

Do the final walkthrough with the contractor present, in daylight, before the final payment clears. Write the punch list down rather than agreeing to it verbally, and photograph every elevation while the crew is still on site.

Walk each wall and look at the details rather than the colour. Caulk lines where trim meets siding and at every penetration. Corner posts and J-channel seated properly around windows and doors. Panels that still move slightly by hand — vinyl is designed to expand and contract, and a panel nailed tight is an installation error that shows up as buckling the first hot week. Outlets, hose bibs and dryer vents trimmed and sealed rather than cut around. Gutters, downspouts, shutters and light fixtures reattached properly.

Then look at the ground. Offcuts, nails and staples left in a lawn are the single most common complaint after an otherwise good siding job. A crew that runs a magnet over the yard and beds before leaving is telling you something about the rest of their work.

Collect the paperwork in the same visit: the workmanship warranty in writing, the manufacturer documentation for the material that was actually installed, and the permit sign-off. Manufacturer coverage is often conditional on registering the product within a window after installation, so confirm who is responsible for filing it — and then check that it was filed.

Common questions

Keep reading