Vetting Siding Contractors in Ames: A Stage-by-Stage Checklist

A south-facing wall in west Ames, mid-July. You run a hand along the vinyl and a chunk of it flexes, then cracks off in your palm like a stale cracker. The panel below it has faded two shades lighter than the rest of the house. You already know the freeze-thaw winters did this, and you already know you are calling someone. The only question left is which crew, and how to tell the good ones from the trucks that roll into town after a hailstorm.

That question is what this checklist is for. Good siding contractors will welcome every item below. The ones to avoid will get cagey. We have organized it by stage, so you can work through it from your first phone call to the final walkthrough.

Stage 1: Before you call anyone

Do a little homework first so the conversations are sharper.

• Walk your own walls. Note cracked, chalky, or buckled panels, and check north-facing sides where moisture lingers.
• Photograph the worst spots with a coin or tape measure for scale. This helps any siding contractors you call quote accurately.
• Decide your goal. Are you fixing storm damage, ending a cycle of repairs, or doing a full re-side for looks and weather-tightness?
• Set a rough budget range. A full re-side on a 1,800 square foot Ames two-story commonly lands between $18,000 and $34,000 depending on material, so know your ceiling.
• Note material curiosity. If you are torn between vinyl siding and fiber cement, write down your questions now.

This stage takes 30 minutes and saves you hours later. It also flags the contractors who try to skip straight to a contract.

Stage 2: Vetting the contractors

Now the phone calls. This is where most homeowners feel rushed, so slow down and check each box.

• Confirm they specialize in siding. A crew that does siding all day handles seams, J-channel, and trim details better than a roofing outfit doing siding on the side.
• Verify local presence in Story County. Ask for a physical address, not just a cell number. Out-of-town storm chasers vanish when a callback is needed.
• Ask for proof of insurance and licensing, and call to confirm the policy is active.
• Request references from nearby jobs within the last year or two.
• Get the material brand in writing. “Fiber cement” should name a product line, and “insulated vinyl” should list an R-value.

If a contractor pushes a same-day signing discount, treat that as a warning, not a deal. Good siding contractors are busy enough that they do not need to corner you.

Stage 3: Reading the estimates

You want at least two written estimates, ideally three. Compare them line by line, not just by bottom-line price.

• Check that scope matches. One estimate at $21,000 that includes new house wrap and another at $17,500 that does not are not the same job.
• Look for tear-off and disposal as named line items. Vague estimates hide these and surprise you later.
• Confirm what happens to rotten sheathing. A fair estimate lists a per-sheet rate, often $60 to $90 installed, so a hidden surprise does not become a blank check.
• Match warranty terms. Separate the manufacturer’s material warranty from the contractor’s labor warranty, and get both in writing.
• Watch the payment schedule. A reasonable structure is a modest deposit with the balance on completion, not half up front.

Here is a real-world style comparison. On a 2,200 square foot Gilbert home, one crew quoted $29,800 for fiber cement with full tear-off and new wrap. Another quoted $26,400 but planned to side over the old material, which traps moisture and voids some warranties. The cheaper bid was actually the riskier buy.

Stage 4: During the project

Once work starts, a quick daily check keeps everything on track.

• Confirm the wall is dried in at the end of each day so an overnight Iowa storm cannot soak open sheathing.
• Inspect the corners and seams. Tight, caulked, consistent joints are the mark of a siding specialist.
• Check flashing around windows and doors. This is where leaks start, and it should be visible before trim covers it.
• Ask about a mid-job walk if you spot anything that looks off. Good crews would rather show you than hide it.

On a recent re-side near the ISU campus, the homeowner noticed two soft sheathing boards by a kitchen window that were not in the original estimate. Because the contract listed a per-sheet replacement rate, the swap added a clear, agreed $148 instead of a vague upcharge.

Stage 5: The final walkthrough

Before you release final payment, walk every side of the house with the crew lead.

• Look down each wall at an angle for waves or bulges that signal poor fastening.
• Verify caulk lines at trim, corners, and penetrations are clean and continuous.
• Confirm cleanup, including a magnet sweep for nails in the yard.
• Collect your paperwork: warranty documents, the final invoice, and any leftover material for future repairs.
• Get the labor warranty in writing if you only had a verbal promise.

When you are ready to compare options or schedule a free estimate, our siding replacement page lays out how we work, material by material.

Frequently Asked Questions

What if my insurance is paying for storm damage but the adjuster’s number seems low? Ask your siding contractor to meet the adjuster on site. A specialist can point out hail bruising or wind-loosened panels an adjuster on a tight schedule might miss, and supplemental claims for missed damage are normal in Iowa after a big storm.

Can a contractor side over my old siding to save money? Sometimes, but it often hides moisture problems and can void manufacturer warranties. For most older Story County homes with brittle 90s vinyl, a full tear-off costs more up front and prevents far more expensive rot down the road.

My damage is only on one wall. Do I have to re-side the whole house? Not necessarily. A single sun-blasted or hail-hit wall can sometimes be replaced on its own, though matching faded existing panels is the catch. Honest contractors will tell you when a partial fix blends in and when it will stick out.

Faded, brittle, or storm-battered, your walls are not getting younger through another Iowa winter. Call for a free, no-pressure estimate and let a local crew that does only siding take a look.