COOKIE POLICY
Cookies on this website
What this site stores on your device, why, and how to change your choices. Last updated July 13, 2026.
What cookies are
Cookies are small text values a website stores in your browser. This site also uses similar browser storage (localStorage and sessionStorage) for functions you ask for, like keeping materials in your cart. This page lists everything we actually use.
The short version
Three Leaf Contracting currently uses necessary cookies and storage only. There are no analytics cookies, no advertising cookies, no social-media trackers and no third-party embeds on this site. If we ever introduce optional cookies, they will stay off until you allow them in the preference centre, and this page will list them first.
Strictly necessary items
These support functions you specifically use: signing in to the client portal, paying securely at checkout, keeping your cart, confirming a booking and remembering your cookie choice. They cannot be switched off in the preference centre because those functions would stop working; you can still clear them through your browser settings at any time.
| NAME | TYPE | PURPOSE AND WHEN IT IS SET | RETENTION |
|---|---|---|---|
| tlc_consent_v1 | cookie | Records your cookie choices so we do not ask again on every visit. After you make a choice in the cookie banner or preference centre. | 6 months |
| sb-*-auth-token (Supabase) | cookie | Keeps you signed in to the client portal and protects your account session. Only after you sign in to the client portal. | For the duration of your signed-in session |
| __stripe_mid / __stripe_sid | cookie | Fraud prevention and payment security during checkout. Only when you open the checkout page. | __stripe_mid about 1 year, __stripe_sid about 30 minutes (per Stripe documentation) |
| tlc_cart_v1 | localStorage | Keeps the materials in your cart between visits on this device. When you add a material to your cart. | Until you clear it or complete an order |
| tlc_last_booking / tlc_last_order | sessionStorage | Carries your booking or order summary to the confirmation page. When you submit a booking or complete a checkout. | Deleted when the browser tab closes |
| tlc_prep_v1 | localStorage | Remembers which installation-prep checklist items you ticked in the portal. When you tick a checklist item in the client portal. | Until you clear browser data |
| tlc_pwa_install_v1 | localStorage | Remembers that you dismissed the app-install suggestion so it stays away. When you dismiss the install suggestion. | Until you clear browser data (the suggestion stays hidden for 60 days) |
Supabase provides secure portal sign-in and Stripe provides payment processing; both act as service providers to Three Leaf Contracting. Stripe's cookies are set only on the checkout flow and are described in Stripe's own documentation.
Optional categories
The preference centre includes analytics and marketing switches. Neither category has any technology in use today; the switches record a standing choice that would apply only if such tools were ever added. They default to off, and rejecting them changes nothing about how the site works.
Managing your preferences
Open the at any time (also linked in the footer) to review or change your choice. Your browser can additionally block or delete cookies for any site; blocking necessary cookies will sign you out of the portal and may interrupt checkout.
Questions
Privacy questions are covered in our privacy policy, which includes how to reach us.