Why Roofing Quotes Vary So Much

The gap is usually real. It is just not where homeowners think it is.

Last updated 2026-09-16

You get three quotes. They are thousands apart. Nothing in any of them explains why, and the cheapest roofer says the expensive one is greedy while the expensive one says the cheap one cuts corners. Both can be right.

The six things that actually differ

1. The measurement

One roofer measured 24 squares, another measured 29. That alone is a large difference in material and labour, and it is invisible unless the square count is on the quote. What a square is.

2. What is being replaced, and what is being reused

This is the biggest hidden variable. A cheap quote frequently reuses the flashing, the valley metal, the drip edge and sometimes the pipe boots. A proper quote replaces all of it. The shingles look identical from the street, and reused flashing is the leading cause of a leak in a brand new roof.

Ask every roofer: is all metal new, including step flashing, counter flashing, valley metal, drip edge and pipe boots? Get the answer in writing.

3. The nailing pattern

Six nails per shingle in this wind zone, or four. Four is cheaper and faster and it is the difference between a roof that stays on and one that does not. It is invisible once the next course is down, which is exactly why it gets cut.

4. Underlayment and ventilation

Synthetic underlayment or felt. Ice and water shield in the valleys and around penetrations, or not. Ridge vent with matched soffit intake designed for your attic, or whatever was there before. Each of these is a line somebody either included or quietly did not.

5. Insurance, and whether it is real

General liability and workers' compensation cost money, and a contractor without them is cheaper. If someone is hurt on your roof and there is no workers' compensation, that exposure can land on you. Ask for the certificate direct from the carrier, not as a PDF the contractor typed.

Remember that Texas does not license roofing contractors. There is no state license to check, which is precisely why the insurance certificate matters.

6. Overhead and margin

Every roofer has both. A large company with salespeople, a call centre and a marketing budget carries more overhead per job than a small one. That is not dishonest, it is a business model. What is worth knowing is how much of your number it is, and on a lump sum quote you cannot.

How to compare them properly

The answers will separate the quotes far better than the prices do. A cheap quote that answers all five well is a genuinely good deal. An expensive one that cannot answer them is just expensive.

Why we price differently

Cost Plus exists because of this exact problem. You see the supplier invoice, the crew hours at a published rate, permits and disposal at cost, and one stated fee of 20 to 30 percent set by job complexity. You can check every line, which means the comparison above stops being guesswork. How it works.

Common Questions

Should I always take the middle quote?

No. That advice assumes the three quotes describe the same work, and they usually do not. Compare what is included rather than where the numbers sit.

Is the cheapest quote always cutting corners?

Not always. A small roofer with low overhead and their own crew can be genuinely cheaper for the same work. The five questions will tell you which kind of cheap you are looking at.

What if a roofer will not put details in writing?

That is the answer to the question. Everything that affects how long your roof lasts should be on the quote, and a roofer confident in their work has no reason to leave it off.

Read Next

• How to Read a Roofing Quote
• How Cost Plus Pricing Works
• Questions to Ask a Roofer
• What Is a Roofing Square?