How to Compare Exterior Contractor Quotes and Spot What's Missing

You have three quotes on the kitchen table for new windows, a front door or siding, and the totals are far apart. One is a single number on a page. Another runs three pages. The third looks cheapest until you notice it never mentions trim or hauling away the old material. Which one is the real deal?

Comparing quotes is mostly about making sure you are comparing the same job. Here is how to line them up, what a complete quote should include and the warning signs to watch for when you hire for exterior work in North Alabama.

Why quotes for the same job look so different

Two contractors can look at the same house and price very different jobs. One plans to remove the old window frames completely and flash the openings, while another plans to set new windows inside the old frames. One includes new exterior trim, and another reuses what is there. One allows for replacing rotted wood, and another assumes there is none.

None of those choices is automatically wrong, but they change both the price and how long the work lasts. The Federal Trade Commission's advice on avoiding home improvement scams says not to automatically choose the lowest bidder and to ask for an explanation when estimates are far apart. The goal is to bring every quote to the same level of detail so the real differences become visible.

Look for line items, not a single total

A line-item quote breaks the job into parts, each with its own description and price. Instead of one total for replacing the windows, you see each opening, the removal, the installation, the trim, the disposal and any extras listed separately.

Line items let you compare like with like, see exactly what is included and adjust the scope without starting over. If a contractor will not break the price down, ask why. A contractor who has planned the job carefully already has those numbers.

Make sure the materials are named

A vague quote says things like vinyl windows, fiberglass door or standard trim. A complete quote names the manufacturer, the product line and the options that matter: the glass, the color, the hardware and, for doors, whether you are getting just the slab, which is the door panel itself, or a prehung unit that arrives already hung in a new frame.

Watch for the words or equal, and for allowances. An allowance is a placeholder amount for something not yet chosen, such as a door handle set. If the allowance is low and the item you actually want costs more, the difference lands on your bill. The FTC notes that a written estimate should include a description of the work, the materials, a completion date and the price.

Windows and doors should be priced per opening

For window and door work, ask for a price for each opening. Per-opening pricing shows exactly what each window or door costs, installed, so you can drop one from the list, add one later or compare the same picture window across two quotes.

It also exposes the hidden average. A lump sum for a dozen windows can blend a small bathroom window with a large living room window, and you have no way to tell whether either one is priced fairly. Per-opening pricing also makes the installation method easier to compare. Our guide to insert vs full-frame window replacement explains the two approaches and why they price differently, and our window replacement cost guide for Huntsville covers what moves the number.

Rot and hidden repairs: read the clause

On older homes, nobody can see everything until the old window, door or siding comes off. Rotted window sills, soft framing under a door threshold, which is the strip at the bottom of a doorway that you step over, and damp sheathing behind siding are all common in our humid climate. Sheathing is the layer of boards or panels behind the siding. This is where many quotes quietly leave room for surprises.

A good quote spells out how hidden damage is handled before you sign:

• How the contractor will show you the damage, for example with photographs taken before anything is covered.
• Whether repairs need your approval before the work goes ahead.
• How repairs are priced, such as a stated rate for each piece of wood replaced, rather than an open-ended promise to repair as needed.

We photograph rot before we cover anything, so you see what we found and what we fixed. Every exterior door we install also gets a sloped, sealed sill pan underneath, a shallow tray with turned-up ends called end dams that drains any water that gets past the threshold back outside. A door quote that never mentions how the bottom of the opening is protected is worth asking about.

The details that quietly go missing

When one quote is noticeably cheaper, the difference is often in items it simply does not mention. Check every quote for these:

1. Removal and disposal. Who tears out the old material, and who hauls it away?
2. Exterior trim. Is new trim or trim capping included around windows and doors, and what is it made of?
3. Flashing and water management. Flashing is the thin metal or membrane that directs water away from openings. Is it included and described?
4. Sill pans for doors. Is a sloped, sealed pan with end dams included under each door?
5. Caulking and sealing. What sealant is used, and where?
6. Permits. Does the job need a permit from your city or county, and who pulls it? Requirements can differ between Huntsville, Madison and the surrounding counties, so ask.
7. Cleanup. Is daily and final cleanup included, including nails and glass in the yard?
8. Schedule. The FTC recommends that a contract include an estimated start and completion date.

Check the license and insurance

In Alabama, residential construction, remodeling and repair work is licensed by the Alabama Home Builders Licensure Board. According to the board's own FAQ, a license is required when the cost of the work, including labor and materials, exceeds $10,000. The board's website has a license lookup, and you can also call the board to confirm a builder's status.

Insurance matters on any job, whatever its size. Ask for proof of liability insurance, and make sure the name on it matches the company on your quote. The FTC gives the same advice: consider only contractors who are licensed and insured, and ask for proof.

For the record, our Alabama license number is 307601, held by ACM Services LLC, and we are insured for residential and commercial work. You can read more about how we work on our about page.

Red flags worth walking away from

• Same-day signing pressure. A price that is only good if you sign tonight is a sales tactic, not a discount. The FTC lists pressure for an immediate decision as a hallmark of home improvement scams.
• A large payment up front, or cash only. The FTC advises against paying the full amount up front and warns about contractors who only accept cash.
• Blank spaces or missing promises. Do not sign anything with blanks, and make sure promises made in conversation are written into the contract.
• No license number, address or phone number on the quote or contract.
• Uninvited visitors after a storm. After hail or high wind, be cautious with anyone who knocks on your door unannounced and offers to start right away.

If you do sign at your kitchen table, the FTC's Cooling-Off Rule generally gives you three business days to cancel a sale made in your home, and the seller must tell you about that right in writing. Our own price does not expire when we leave your driveway. It is the same next week, and there is never pressure to sign.

A side-by-side checklist

Lay each quote against this table with a pen. Anything a quote leaves blank is a question to ask, and the answers usually explain most of the gap between the high and low numbers.

If you would like one more quote to compare, we are glad to provide it. Our free in-home estimates come with a written line-item scope, every material named and per-opening pricing for windows and doors, for homes across Madison, Huntsville, Harvest and the rest of North Alabama. Our two crews each stay on one job until it is finished. Request your free estimate or call (256) 585-6817.