You have decided your stone floors need professional attention. You call a few companies, get some bids, and now you are staring at proposals that range from $800 to $8,000 for what sounds like the same work. How do you know which bid is legitimate, which is a rip-off, and which is so cheap it should scare you? Here is how to read a stone restoration bid like a pro.
What a Good Bid Includes
Before you can spot red flags, you need to know what a complete, professional stone restoration bid looks like. At minimum, it should contain all of the following:
Detailed Scope of Work
The bid should spell out exactly what work will be performed, in specific terms. “Polish marble floors” is not a scope of work. A proper scope reads more like: “Diamond hone marble flooring in foyer and hallway (approximately 350 square feet) using progressive diamond grits from 200 to 3000, polish to 70-plus gloss units, repair three chips with color-matched epoxy, apply impregnating sealer.”
If you cannot tell exactly what the company plans to do by reading the bid, the bid is not detailed enough.
Square Footage and Pricing Breakdown
The bid should state the total square footage being addressed and break down the pricing so you can understand what you are paying for. A lump-sum number with no breakdown makes it impossible to compare bids or evaluate fairness.
Timeline and Access Requirements
How many days will the work take? What hours will the crew be on site? Will you need to vacate the area? What about furniture, will the company move it or do you need to clear the space beforehand? These details matter and should be addressed in the bid.
Insurance Documentation
A professional stone restoration company carries general liability insurance and workers’ compensation. The bid should reference this coverage, and the company should provide certificates of insurance upon request without hesitation.
Warranty Terms
What does the company guarantee, and for how long? A reputable company stands behind its work with a written warranty that specifies the coverage terms.
Red Flags That Should Make You Walk Away
In our 40-plus years in the stone restoration industry, we have seen every corner-cutting tactic in the book. Here are the red flags that should give you serious pause.
No On-Site Assessment
Any company that quotes a price without physically inspecting your stone is guessing. Stone type, condition, square footage, access issues, and the specific damage all affect the scope and price. A bid based on a phone description or a few photos is not a real bid. It is a placeholder that will change once the crew shows up and sees the actual conditions.
No Test Area
A professional stone restoration company will offer to perform a test area, a small section where they demonstrate the results you can expect. This test lets you see the quality of their work on your specific stone before committing. Any company that refuses to do a test area, or does not mention it, may not be confident in their results.
No Insurance or Refusal to Provide Certificates
This is non-negotiable. Stone restoration involves heavy equipment on your floors, water, chemicals, and workers in your home or building. If something goes wrong, such as a technician damaging a wall, breaking a fixture, or getting injured, you need their insurance to cover it. No insurance means the liability falls on you.
Price That Is Far Below Other Bids
If three bids come in at $4,000, $4,500, and $5,000, and a fourth comes in at $1,200, that fourth bid is not a bargain. It is a warning. The low bidder is likely cutting corners in one or more of these ways:
- Using topical coatings or waxes instead of mechanical polishing (looks good for a month, then fails)
- Skipping honing steps to save time (produces an inferior finish that will not last)
- Using uninsured, untrained workers
- Planning to upsell you once they start (“we found additional damage” is the classic move)
Professional marble and stone restoration has real costs: specialized equipment, diamond tooling that wears out, trained labor, insurance, and time. There is a floor below which the work simply cannot be done properly.
Vague or Missing Written Scope
If the bid is a handwritten note on a business card or a one-line email saying “marble polishing, $2,500,” that is not a professional bid. Without a written scope, you have no recourse if the results are poor or the company does not complete all the work you expected.
Pressure to Decide Immediately
Legitimate companies do not pressure you to sign on the spot with “today only” pricing. That tactic is designed to prevent you from comparing their bid to competitors. A fair price is a fair price tomorrow and next week.
Questions to Ask Every Bidder
Arm yourself with these questions when evaluating bids. The answers will tell you a lot about the company’s professionalism and expertise.
- What type of stone is my floor? If they cannot identify it, they should not be working on it. Different stones require different processes and chemicals. Using the wrong approach can cause permanent damage.
- What specific process will you use? Listen for detailed technical answers: diamond honing, specific grit sequences, mechanical polishing vs. crystallization. Vague answers like “we’ll clean and shine it up” suggest a lack of expertise.
- How many technicians and how many days? This helps you gauge whether the timeline is realistic for the scope. One person polishing 1,000 square feet in a day is rushing. A crew of three completing it in two days is reasonable.
- Can I see photos of similar completed projects? Every reputable company maintains a portfolio. Ask for before-and-after photos of projects similar to yours.
- What happens if I am not satisfied with the results? A company that stands behind its work will have a clear answer. Evasion on this question is a red flag.
- Who will actually perform the work? Some companies sell the job and then subcontract the labor. You want to know who will be in your home or building.
Comparing Bids Fairly
Once you have two or three detailed bids, compare them on equal terms:
- Ensure all bids cover the same square footage and the same surfaces.
- Compare the specified processes, not just the price. A bid that includes lippage removal and one that does not are not comparable.
- Factor in the warranty. A higher-priced bid with a two-year warranty may be better value than a cheaper bid with no warranty.
- Consider the company’s depth. A company with 30-plus technicians can schedule your project sooner and handle complications without delays.
Get a Detailed, Transparent Bid
At Rose Restoration International, every bid starts with an on-site assessment and includes a detailed written scope, transparent pricing, insurance documentation, and a test area so you can see the results before committing. We have been restoring stone surfaces across Virginia, Maryland, and DC for over 40 years because we earn trust through transparency, not pressure. Request your free assessment or call us at 703-327-7676.