5 Questions to Ask Before Hiring a Paver Sealing Company in Chicagoland

Hiring a paver sealing contractor in the Chicago suburbs isn't complicated — but it does require asking the right questions before you sign anything. Most homeowners in Naperville, Hinsdale, Wheaton, Glen Ellyn, Western Springs, Elmhurst, Downers Grove, Burr Ridge, Highland Park, and Lake Forest get at least two or three quotes before making a decision. The problem isn't the number of quotes — it's knowing how to evaluate them.

We've covered the topic of contractor selection in depth elsewhere on this blog — including a detailed guide to comparing paver sealing quotes and a post on what a contractor's level of professionalism signals about the quality of their work. This post takes a different approach: five direct questions you can ask any contractor, in any conversation, that will tell you almost everything you need to know about whether they're the right fit for your project.

Ask these questions. Listen carefully to the answers. The right contractor will have clear, confident responses to every single one.

Question 1: What Is Your Step-by-Step Process — and Can You Walk Me Through It?

This is the most revealing question on the list, and the one most homeowners never think to ask. Paver sealing isn't a single-step service. Done correctly, it's a multi-phase restoration process that includes pre-inspection, structural repairs, mold and mildew treatment, targeted stain removal, deep cleaning, joint stabilization, and finally the sealer application itself. Each step exists because skipping it creates a specific problem down the road.

A contractor who truly specializes in paver sealing can walk you through their process without hesitation — explaining not just what they do, but why each step matters. A contractor who describes the job as "we clean it and seal it" either doesn't have a defined process or doesn't feel the need to explain it. Neither is a good sign.

At Chicagoland Paver Sealing, our 7-step restoration process has been refined over nearly 30 years of working on brick paver driveways, patios, pool decks, and walkways across the Chicagoland area. We can explain every step and why it matters — because we've seen what happens when each one gets skipped.

Question 2: What Specific Products Do You Use, and Are They Available at Retail?

The sealant product matters enormously — and most homeowners never ask about it. There is a meaningful difference between consumer-grade sealers available at home improvement stores and the commercial-grade products used by professional contractors. Professional sealers are more concentrated, more durable, offer better UV resistance, and typically last significantly longer under the freeze-thaw conditions and road salt exposure that Chicagoland pavers face every winter.

Ask any contractor you're evaluating to name the specific product they plan to use. Then ask whether it's available at a big-box store. If the answer is yes, that's worth noting. If they can't name the product at all, that's a red flag.

The same question applies to polymeric sand — the joint filler that stabilizes your paver system and resists washout, weeds, and ant infestations. Ask whether it's included in the quote and what brand or grade they use. A contractor who uses high-performance polymeric sand and can speak to why they chose it is a contractor who has thought carefully about the materials going into your project.

Question 3: How Do You Apply the Sealer — and How Many Coats?

This question exposes one of the most common quality differences between contractors, and it's one most homeowners would never think to ask. There are two ways to apply paver sealer: spraying and rolling. They produce meaningfully different results.

Spraying ensures the sealant reaches the chamfered edges and beveled surfaces of each individual paver — the areas a roller physically cannot access. It also ensures the sealer fully saturates the polymeric sand in the joints, locking it in place. Rolling applies sealer only to the flat top surface of the paver and frequently pulls joint sand upward in the process, creating an uneven finish that becomes more noticeable as the sealer wears over time.

Ask how many coats are included as well. A single coat of sealer applied to a properly prepared surface is better than three coats on a poorly prepared one — but a professional application typically involves multiple coats to ensure adequate coverage, saturation depth, and a consistent finish.

If a contractor rolls rather than sprays, or applies a single coat and calls it done, you now know something important about how they prioritize quality versus speed.

Question 4: Are You Licensed and Insured — and Can You Provide a Certificate?

This one is non-negotiable, and it should be asked of every contractor who sets foot on your property — not just paver sealers. Any legitimate contractor working on your home should carry general liability insurance and be able to provide a certificate of insurance on request, without hesitation or delay.

Why does it matter? Because if something goes wrong — a slip and fall, accidental damage to your property, a chemical spill that affects adjacent landscaping — you want to know that the contractor's insurance covers it. If they're uninsured, that liability falls on you and your homeowner's policy.

A contractor who carries proper insurance is also a contractor who runs their business seriously. It's another data point in the overall picture of professionalism that tells you how they're likely to show up on the day of the job.

Question 5: What Does Your Warranty Cover — and Can I See It in Writing?

A warranty is one of the clearest indicators of a contractor's confidence in their own work. A company that backs its jobs with a substantive written warranty — one that covers workmanship defects and material failure for multiple years — is making a real commitment. A contractor who offers a vague verbal assurance or a 90-day warranty buried in fine print is telling you something about how much they stand behind what they do.

Ask for the warranty in writing before the job begins. Read it. Understand what's covered and what isn't. A good warranty will be transparent about both — covering what the contractor can genuinely control, such as sealant cracking, peeling, or turning yellow due to workmanship or product failure, while clearly excluding things outside their control, such as normal wear over time, chemical spills, or drainage issues caused by the original paver installation.

Chicagoland Paver Sealing offers a 3-year Common Sense Warranty on qualifying projects — a written warranty we're happy to walk any homeowner through before, during, or after the estimate process. We've written about it in detail on this blog if you'd like to understand exactly what it covers and why we structured it the way we did.

What the Right Contractor Looks Like

A contractor who can answer all five of these questions clearly, specifically, and in writing is a contractor who knows their craft, respects their customers, and runs their business with the kind of care that carries through to the work itself. A contractor who stumbles on two or three of them — or who responds with vague generalities rather than concrete answers — is giving you information you should take seriously before making a decision.

The Chicagoland paver sealing market has a wide range of operators, from highly specialized professionals with decades of local experience to part-time crews offering sealing as a side service. The five questions above are the fastest way to tell the difference.

We serve homeowners throughout the western and northern Chicago suburbs — including Naperville, Hinsdale, Wheaton, Glen Ellyn, Western Springs, Elmhurst, Downers Grove, Burr Ridge, Highland Park, and Lake Forest. If you'd like to put these questions to us directly, we welcome it. Call or text us at 630-866-5292 or request a free quote at chicagolandpaversealing.com.

Frequently Asked Questions

What questions should I ask a paver sealing contractor before hiring them?

The five most important questions are: What is your step-by-step process? What specific products do you use and are they available at retail? How do you apply the sealer and how many coats? Are you licensed and insured with a certificate available? And what does your warranty cover in writing? A qualified specialist will answer all five clearly and without hesitation.

Why does it matter whether a paver sealing contractor sprays or rolls the sealer?

Spraying ensures the sealant reaches the chamfered edges and beveled surfaces of each paver that a roller cannot access, and fully saturates the polymeric sand in the joints. Rolling applies sealer only to the flat top surface and often pulls joint sand upward, creating an uneven finish that becomes more visible as the sealer wears over time.

How do I know if a paver sealing company uses professional-grade products?

Ask the contractor to name the specific sealant product they plan to use, then ask whether it's available at a home improvement store. Professional commercial-grade sealers are generally not sold at retail. If the product is available at a big-box store, it is likely a consumer-grade formulation with lower concentration and shorter longevity than professional alternatives.

What should a paver sealing warranty cover?

A solid paver sealing warranty should cover defects in workmanship and material failure — specifically sealant cracking, peeling, or yellowing due to how the job was performed or a failure of the product. It should be provided in writing with clear terms before the job begins. Exclusions for things outside the contractor's control — normal wear, chemical spills, drainage issues — are reasonable and expected in any honest warranty.

How long should a paver sealing warranty last in the Chicago area?

Given the stress that Chicagoland winters, freeze-thaw cycles, and road salt place on sealed paver surfaces, a quality warranty from a confident contractor should cover workmanship and material defects for at least two to three years. A warranty shorter than one year, or one offered only verbally, is a signal worth paying attention to.

How do I verify a paver sealing contractor is licensed and insured in Illinois?

Ask the contractor directly for a certificate of insurance before any work begins. A legitimate, professional contractor should provide this without hesitation. If a contractor is reluctant to provide documentation or asks you to take their word for it, that is a reason to reconsider before proceeding.