Most patio problems trace back to what happened before the first shovel: an unclear bid, a missing contract term or a crew that skipped base work. This checklist covers what Indiana law requires, what to verify and what to ask, with sources from the Indiana Attorney General and industry groups listed at the bottom.
Before you call anyone
A clear idea of what you want makes every bid comparable.
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Write down:
- Size and shape. Measure the area and sketch it, including any steps or level changes.
- Material. Pavers, stamped or plain concrete, or natural stone. Not sure? See pavers vs. stamped concrete.
- A budget range. Use our paver patio cost guide or stamped concrete cost guide.
- Rules that apply. HOA approval, easements on your plat, and your city's permit rules.
Check the contractor
Checks you can do in a few minutes before you invite anyone out.
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- Licensing. The Attorney General advises checking licensing requirements with your city or county1. In Indianapolis, the City publishes a licensed-contractor lookup2. Suburbs set their own requirements.
- Insurance and bonding. Ask for current certificates, and confirm the contractor is bonded and insured1.
- Complaints. Search the Attorney General's Consumer Protection Division and the Better Business Bureau1.
- Concrete credentials. For poured or stamped concrete, PACA suggests asking whether the finisher holds ACI Flatwork Finisher certification3.
- Recent local work. Ask to see patios that have been through at least one winter.
Questions to ask at the estimate visit
Good contractors are happy to answer these, and the answers make bids easier to compare.
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For any patio
- How deep will the compacted base be on my soil? Local guidance calls for 6–8 inches on central Indiana clay4.
- Where will water go? What slope will the patio have away from the house?
- Who requests the Indiana 811 utility locate? It's needed at least two full working days before digging5.
- Who pulls the permit, if one is needed? The Attorney General advises not letting work start before a required permit is issued1.
- What's the start date, the completion date and the warranty, in writing?
For pavers
- Which paver product, and does it meet ASTM C936?6
- What edge restraint and joint sand will you use?
For stamped or poured concrete
Comparing bids
Put the bids side by side and check that each covers the same items: area, product, base depth, drainage, edging or joints, steps, permits, cleanup and warranty.
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The Attorney General recommends getting written bids and being skeptical of bids far below the others1. A low price often means less base or no drainage, and those are the parts you can't see later.
What the contract must include
Indiana's Attorney General lists what a home-improvement contract over $150 must include.
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- The price and the payment schedule
- A detailed description of the work and materials, including colors, brands and patterns
- Approximate start and completion dates
- The contractor's name and address, plus a contact name and phone number
- The contractor's signature, and yours
Source: Indiana Attorney General, home improvement fact sheet1, summarizing the Indiana Home Improvement Contract Act (IC 24-5-11)8. This is general information, not legal advice.
Paying safely
How to structure payments so you're never far ahead of the work.
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- Keep the deposit small. The Attorney General advises paying no more than one-third up front1.
- Tie payments to progress. Pay later installments as stages of work are completed1.
- Get lien waivers. Before the final payment, get proof that subcontractors and suppliers have been paid1.
- Keep records. Keep copies of the contract, change orders, receipts and the written warranty1.
How our referral service fits in
We're a free referral service, not a contractor.
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Before we refer a contractor, we do basic checks such as the City of Indianapolis licensed-contractor list where applicable, proof of insurance and public reviews. That's a starting point, not a guarantee, so please run through this checklist too. Read how it works, or request a free estimate below.
