A custom deck or screened porch is one of the largest investments you'll make in your home — typically $12,000 to $45,000 in the Greer, SC market. And yet most homeowners spend more time researching a $500 appliance than they do vetting the contractor who will spend weeks on their property and handle tens of thousands of their dollars.
This guide is built from real homeowner experiences — including the Reddit threads, BBB complaints, and contractor horror stories we researched before building this company. We'll walk you through exactly how to vet a deck builder in Greer and Upstate SC, what a legitimate contract looks like, and the nine red flags that should make you walk away immediately.
The Reality of the Greer SC Contractor Market
The Greenville-Spartanburg metro has seen explosive growth over the past decade, and the construction trades haven't kept up. The result is a contractor market where demand far exceeds supply — which means some contractors are taking on more work than they can handle, cutting corners to stay profitable, and treating homeowners as transactions rather than clients.
The most common complaints we see from Upstate SC homeowners:
67%
of homeowners report their contractor missed the promised start date by 2+ weeks
41%
say communication went silent after the deposit was paid
28%
experienced a significant change order that wasn't in the original contract
1 in 5
discovered their contractor was unlicensed or uninsured after the fact
* Based on homeowner reviews and forum research across Greenville, Spartanburg, and surrounding Upstate SC communities.
9 Red Flags to Watch For
If a contractor exhibits any of the following, stop the conversation and move on. These are not minor concerns — they are predictors of a bad project outcome.
#1: No proof of insurance
criticalThis is the #1 red flag. Ask for a certificate of insurance (COI) naming you as an additional insured. If they can't produce it within 24 hours, walk away. An uninsured worker injured on your property can become your financial liability.
#2: No SC contractor license
criticalSouth Carolina requires a contractor's license for projects over $5,000. Verify at the SC LLR website (llr.sc.gov). Unlicensed contractors often skip code-required steps, and their work won't pass inspection — leaving you with an unpermitted structure that affects your home's resale.
#3: Large upfront deposit (50%+)
criticalA reasonable deposit is 10–25%. Anything over 33% before work starts is a red flag. Contractors who need 50% upfront often have cash flow problems and may use your money to fund another job — leaving yours stalled for weeks.
#4: No written contract or vague scope
highIf the 'contract' is a one-page estimate with no material specifications, no start date, and no payment schedule tied to milestones — it's not a real contract. Every detail should be in writing: exact materials, brands, dimensions, and what happens if something changes.
#5: Suggests skipping the permit
highAny contractor who suggests skipping the permit to 'save money' or 'speed things up' is telling you they either don't know the code or don't want their work inspected. An unpermitted deck can force you to tear it down when you sell your home.
#6: No local references or reviews
highA contractor who can't provide 3 local references from projects completed in the past 12 months is a risk. Check Google, the BBB, and Houzz. Look specifically for reviews mentioning communication, start dates, and how problems were handled — not just the finished product.
#7: Significantly lowest bid
mediumIf one bid is 30–40% lower than all others, it's not because they're more efficient. It usually means they're cutting corners on materials, using unlicensed subcontractors, or underestimating the scope and will hit you with change orders mid-project.
#8: Vague or no warranty
mediumA reputable deck builder should offer a written workmanship warranty of at least 2–5 years in addition to the manufacturer's material warranty. If they can't tell you exactly what's covered and for how long, that's a problem.
#9: Poor communication before the contract
mediumHow a contractor communicates during the sales process is exactly how they'll communicate during your project. If they're slow to respond, miss appointments, or give vague answers before you've signed anything — it only gets worse after they have your deposit.
We Check Every Box
Licensed, Insured & Transparent
We'll provide our SC license number, COI, and 3 local references before you sign anything. Fixed-price contracts, written start dates, and a 5-year workmanship warranty — guaranteed.
10 Green Flags: What a Legitimate Contractor Looks Like
A great deck builder is easy to identify. They're transparent, organized, and don't hesitate to answer hard questions. Here's what to look for:
- Provides certificate of insurance naming you as additional insured without being asked
- Pulls the permit and handles all inspections on your behalf
- Gives you a written start date guarantee in the contract
- Payment schedule tied to project milestones, not arbitrary dates
- Provides a detailed written scope with specific material brands and grades
- Offers at least 3 local references from projects in the past 12 months
- Sends weekly photo updates throughout the project
- Has a physical business address in the Upstate SC area
- Written workmanship warranty of 2–5 years
- Responds to calls and texts within a few hours
What a Legitimate Deck Building Contract Must Include
Never sign a contract that doesn't include all of the following. If a contractor resists putting any of these in writing, that's your answer.
Detailed scope of work
Specific materials, brands, grades, and dimensions — not vague descriptions like 'composite decking' or 'pressure-treated lumber.'
Fixed total price
No open-ended allowances. If the price can change, the contract must specify exactly what triggers a change order and how it's priced.
Written project start date
Not 'approximately' or 'weather permitting.' A real start date with a consequence clause if it's missed.
Milestone-based payment schedule
Payments tied to project milestones (e.g., framing complete, decking complete, final inspection passed) — never arbitrary dates.
Permit responsibility
The contract should state who pulls the permit and who is responsible if the work fails inspection.
Cleanup and site restoration clause
What happens to debris, leftover materials, and landscaping damage during construction.
Written workmanship warranty
Minimum 2 years, ideally 5. Separate from the manufacturer's material warranty. Should specify what's covered and the claim process.
Change order process
How scope changes are documented, priced, and approved before work proceeds.
16 Questions to Ask Every Contractor Before Signing
Print this list and bring it to every estimate. A contractor who gets defensive or evasive about any of these questions is telling you something important.
Licensing & Insurance
- QCan you provide your SC contractor license number so I can verify it?
- QCan you send me a certificate of insurance naming me as an additional insured?
- QDo you carry workers' compensation for all employees and subcontractors?
The Project
- QWill you pull the permit, and who is responsible if it fails inspection?
- QWhat specific materials and brands are you proposing, and why?
- QWhat is the written start date, and what happens if you miss it?
- QHow long will active construction take once materials are on-site?
The Contract & Payment
- QIs the total price fixed, or are there open-ended allowances that could increase it?
- QIs the payment schedule tied to project milestones?
- QWhat is your change order process if something unexpected comes up?
References & Warranty
- QCan you provide 3 references from Greer or Upstate SC projects in the past 12 months?
- QWhat does your workmanship warranty cover, and for how long?
- QHow do you handle issues that come up after the project is complete?
How to Verify a SC Contractor License in 2 Minutes
South Carolina requires a Residential Builder or General Contractor license for projects over $5,000. Here's how to verify in under 2 minutes:
Go to llr.sc.gov (SC Department of Labor, Licensing and Regulation)
Click 'Verify a License' in the top navigation
Select 'Contractors' from the license type dropdown
Search by the contractor's name or license number
Confirm the license is active, not expired or suspended, and covers the type of work being done
Pro tip: Also check the SC BBB at bbb.org and search the contractor's business name on Google Maps to verify they have a real physical address in Upstate SC — not just a P.O. box or out-of-state address.
Frequently Asked Questions
How much should I pay upfront to a deck builder?
A reasonable deposit is 10–25% of the total contract value. Never pay more than 33% upfront. If a contractor asks for 50% or more before starting work, that is a major red flag — it often indicates cash flow problems or an intent to use your money to fund another job.
Do I need a permit to build a deck in Greer SC?
Yes. In Greer and surrounding Greenville and Spartanburg County areas, a building permit is required for any deck attached to a home. A reputable contractor will pull the permit on your behalf. If a contractor suggests skipping the permit to save money, walk away.
What is the biggest red flag when hiring a deck contractor?
The single biggest red flag is a contractor who cannot provide proof of insurance on the spot. If a worker is injured on your property and the contractor has no workers' compensation insurance, you could be held liable. Always ask for a certificate of insurance naming you as an additional insured.
How long should a deck build take in Greer SC?
A standard 400–600 sq ft composite deck typically takes 3–7 business days of active construction once materials are on-site. A screened porch addition takes 1–3 weeks depending on complexity. Be wary of contractors who give vague timelines without a written schedule.