Window Tint Guide: Get Tinted
12 Questions to Ask Before You Get Your Windows Tinted
A phone call or a quote request is your best chance to judge a tint shop before your car is in its bay. The right questions reveal what film you are getting, whether the shop understands South Carolina law and what happens if something goes wrong.
Below are twelve questions worth asking, grouped by topic. For each one we describe what a good answer sounds like, and where it helps, how The Auto Show answers it. Copy them into your phone before you start calling around.
The short answer
Before tinting, ask the shop which brand and product it installs, the film's published total solar energy rejected, what shade is legal on your vehicle with its factory glass, whether every window gets South Carolina's compliance sticker, how film is cut and shaped, what the manufacturer's warranty covers and how claims work, exactly which windows the price includes, and what aftercare you need. Clear, specific answers are a good sign.
Key points
- Film questions: brand, product, published TSER for your shade, and how the film keeps its color.
- Legal questions: the combined 27% limit on your glass, your vehicle type and the certificate of compliance.
- Workmanship questions: how film is cut, how back glass is shaped and how defroster lines are handled.
- Paperwork questions: warranty terms in writing, what the price covers and the booking policy.
- Vague answers on law or film are a reason to keep looking.
Before you call
Have these details ready
Good answers depend on good information. A shop can only tell you what is legal and what it costs if it knows what you drive and what you want, so have a few details in front of you before you pick up the phone or fill in a quote form.
- Year, make and model, and the vehicle type on the door-edge label (for example MPV or truck).
- Which windows you want tinted: the two fronts, all sides, the back glass, or a windshield strip.
- Whether any window already has aftermarket film, and whether the rear glass has factory privacy tint.
- Your main goal: heat, glare, privacy, looks or UV, since that steers the film choice more than the shade.
The film
Questions 1 to 3: what you are buying
- 1. What brand and product will you install?Good answer: a specific name
- You want a manufacturer and product you can look up, not just "ceramic" or "our premium film". Our answer: LLumar Carbon or LLumar Ceramic, your choice.
- 2. What is the film's total solar energy rejected at the shade I want?Good answer: a TSER figure from the manufacturer
- TSER is the best single heat number. Be cautious if the only figure offered is infrared rejection, which always reads higher, or an "up to" number for the darkest shade. How to read heat claims
- 3. Will the color fade or turn purple?Good answer: an explanation of the film's construction
- Purple tint comes from dyes breaking down in the sun. Our answer: LLumar Carbon has its color built into the film rather than dyed on the surface, so the charcoal stays true; LLumar Ceramic uses nano-ceramic particles for heat rejection.
The law
Questions 4 to 6: staying legal
- 4. What shade is legal on my car, including the factory glass?Good answer: they check your glass
- South Carolina sets a 27% minimum for combined light transmission, film plus glass, on regulated windows. A good shop accounts for factory tint instead of quoting the film number alone. Our answer: we check the legal shade for your vehicle before installing. The 27% rule explained
- 5. Do the rear-window rules apply to my vehicle?Good answer: it depends on vehicle type
- The limits on windows behind the driver do not apply to multipurpose passenger vehicles such as most SUVs and minivans, but do apply to pickups. The vehicle type is printed on the certification label on the driver's door edge or pillar.
- 6. Will every tinted window get a certificate of compliance?Good answer: yes, every window
- State law requires a sticker on the inside lower right corner of each tinted window, showing the light transmission, the installer's name, address and phone number, and the date. Our answer: yes, each tinted window gets one.
Workmanship
Questions 7 to 9: how the job is done
- 7. How do you cut the film?Good answer: a clear description
- Plotter cutting from vehicle patterns and skilled hand cutting both exist. Ask which they use and why. Our answer: film is computer cut for your vehicle.
- 8. How do you handle the back glass and the defroster?Good answer: heat-forming, care around the grid
- Curved rear glass needs film shaped with heat so it lies flat without creases. Film goes over the defroster grid, and installers avoid aggressive scraping on it. Ask how they protect the lines. Tint and defroster lines
- 9. Is there anything about my car that makes it harder or not possible?Good answer: honest limits
- Older seals and trim, existing film and some glass shapes change the job. Our answer: we do not tint vehicles more than 8 years old, because door seals and trim become brittle and likely to break.
Paperwork
Questions 10 to 12: price, warranty and booking
- 10. Exactly which windows does the price include?Good answer: a list, not a vague package
- "Front windows", "sides" and "full car" mean different things at different shops. Our answer: our published prices, from $125.99 for LLumar Carbon and from $199.99 for LLumar Ceramic, cover the two front side windows; full vehicles are priced by quote.
- 11. What does the warranty cover, and who handles a claim?Good answer: specifics in writing
- Tint warranties usually come from the manufacturer through the installer. LLumar says its tint products carry a manufacturer's lifetime limited warranty with restrictions, and that dealers have the details. Ask what is covered, what is excluded and what paperwork to keep. Tint warranties explained
- 12. What do I need to know about booking and aftercare?Good answer: clear policies
- Ask about deposits, cancellations, waiting and drop-off, and how long to keep the windows up afterward. Our answer: appointment only, a deposit confirms the booking, the deposit amount and cancellation policy are shown when you book, there is no waiting area, and drop-off after 6 pm can be arranged by phone.
Listening
How to judge the answers
The content of an answer matters, but so does how it is given. A shop that names its film without hesitation, does the combined light math out loud and explains its warranty process is showing you how it works. A shop that changes the subject to price, or says the law does not really matter, is showing you something too.
Watch for answers that sound confident but are wrong. "Five percent is legal on the back of any vehicle" ignores the pickup rule. "Ceramic blocks 90% of heat" is almost always an infrared figure, not total solar energy. "Lifetime warranty" without any detail on restrictions tells you very little.
Bonus
Two more if your situation is unusual
- If you have a medical condition that may call for darker film: "How do you handle a South Carolina medical exemption affidavit?" With us, bring the paperwork and ask before you book.
- If your car already has aftermarket tint: "Can you work on a car with existing film, and what does that involve?" Ask before the appointment, not at drop-off.
Ask us any of these
Call or request a quote and we will answer these questions for your vehicle before you book.
Common questions
What is the most important question to ask a tint shop?
Ask what shade is legal on your specific vehicle, including the factory glass. The answer shows whether the shop understands South Carolina's combined 27% rule and the vehicle-type exception, and whether it checks your glass rather than quoting the film number. A good answer here usually comes with good answers to everything else.
Should a tint shop give me a spec sheet?
It should at least be able to point you to the manufacturer's published data for the film it installs. Major film makers publish visible light transmission, total solar energy rejected and UV figures by product and shade. Being able to compare those figures is far more useful than a showroom heat lamp demonstration.
Is it rude to ask a tint shop so many questions?
No. A careful shop expects informed customers and is usually glad to explain, because it saves misunderstandings later. If a shop seems annoyed by basic questions about film, the law or warranty, take that as useful information before you hand over your keys.
Can I bring my own film to a tint shop?
Many shops only install film they buy from their supplier, partly because warranty coverage generally runs through the installing dealer. Ask before you buy anything. With us, the choice is between LLumar Carbon and LLumar Ceramic.
Keep reading
Sources
- S.C. Code Ann. § 56-5-5015, South Carolina Legislature (https://www.scstatehouse.gov/code/t56c005.php), accessed October 2026
- LLumar Window Film Performance Data (LL0116NAEN, 03/26), Eastman Performance Films (https://llumar.com/content/dam/eastman/performance-films/llumar/documents/LL0116NAEN_AutoSpecs_screen.pdf), accessed October 2026
- Automotive Window Tint Frequently Asked Questions, LLumar (https://llumar.com/en/resources/automotive-window-tint-frequently-asked-questions/), accessed October 2026
- 49 CFR 571.3 Definitions (multipurpose passenger vehicle), Legal Information Institute, Cornell Law School (https://www.law.cornell.edu/cfr/text/49/571.3), accessed October 2026
- 49 CFR 567.4 Requirements for manufacturers of motor vehicles (certification label), Legal Information Institute, Cornell Law School (https://www.law.cornell.edu/cfr/text/49/567.4), accessed October 2026
- Automotive Installation Process, International Window Film Association (https://iwfa.com/automotive-installation-process/), accessed October 2026
Prices on this page are The Auto Show’s published starting prices. Film ratings and warranty terms come from the manufacturer. This guide explains South Carolina law in plain words; it is not legal advice.