Instagram ads are getting pricier and noisier. PostKnock mails a beautiful intro-offer postcard to the high-value homes around your spa — then puts every prospect into your front desk's call queue so a real person books the consult.
Start Free — No Credit CardFree plan from $1.05/card · Pro from $0.79/card · No contracts
A med spa lives or dies on a steady flow of first-time consults — the Botox client who becomes a quarterly regular, the facial client who upgrades to a package. But the usual channels keep getting harder. Here's where new-client growth stalls, and why a postcard plus a call cuts through.
Meta and Google costs per booked consult keep climbing, and aesthetics ad accounts get flagged or restricted for "before/after" creative. Your acquisition cost goes up while reach goes down.
People drive 10–15 minutes for injectables, not 45. You need to reach the specific affluent neighborhoods near your spa — not pay to show ads to a whole metro that will never visit.
A new med spa or a derm office's "aesthetics arm" seems to open every quarter. Standing out in a saturated feed is brutal — a physical card in the mailbox has the lane mostly to itself.
A click or a form-fill isn't a client. Aesthetics prospects compare, hesitate, and ghost. Without a human follow-up call, your hard-won interest quietly evaporates.
Wedding season, "summer body" prep, prom, the holiday glow-up, and the January post-resolution wave all spike demand. If you're not in the mailbox 4–6 weeks ahead, you miss the booking window.
A loyal injectables or membership client is worth thousands a year. That makes it worth spending real effort to land a first visit — which is exactly what a multi-touch, postcard-plus-call sequence is built to do.
An aesthetics prospect is a considered buyer — they want to feel taken care of before they hand over their face and their credit card. A polished intro-offer postcard earns the look; a warm front-desk call a few days later earns the booking. That one-two punch is what PostKnock is built for.
A multi-touch wave sequence built to turn a nearby stranger into a first consult. Postcards mail on schedule; prospects who haven't booked flow into the Call Queue and roll forward to the next wave automatically.
A polished, on-brand card to nearby high-value homes with one hero offer (intro Botox/unit pricing, a first-facial price, or a complimentary consult). QR code straight to your online booking page.
A few days after the card lands, prospects who haven't booked appear in your Call Queue with a pre-loaded script: "We sent you an intro offer — want me to find you a consult time this week?" Staff logs each outcome in one click.
A different design for everyone who still hasn't booked. Lead with a service they didn't see the first time, a seasonal tie-in (wedding, summer, holiday glow-up), or a deadline that's about to close.
A last call attempt for non-responders paired with a final "your intro offer expires soon" postcard. Then the area rests before you mail the neighborhood again next season.
Wave count, timing, and call cadence are yours to set — PostKnock supports up to 5 waves. The phone-call waves use the built-in Call Queue, a Pro feature.
Med spa acquisition is about reaching the right households close to you. PostKnock supports two ways to build that audience — bring your own list, or saturate the neighborhood.
Have a list from a list broker, an event sign-up sheet, a referral export, or your booking software's "leads who never converted"? Export it to CSV and import it — the wizard auto-maps name, address, and phone. PostKnock doesn't integrate with your booking or POS system; you export the file, then import it.
Great for: event leads, lapsed inquiries, broker-sourced affluent households, referral lists.
Don't have a list? Use EDDM-style saturation mailing to blanket the carrier routes and ZIPs around your spa — no names needed. Ideal for a grand opening or planting your flag in the affluent blocks nearest your door.
Great for: grand openings, new locations, owning the immediate radius around your spa.
You control the targeting and the list. PostKnock prints, mails, and (on Pro) queues the follow-up call.
A new-client card needs a reason to book a first visit now. These are common, client-appropriate angles you can drop into the postcard offer field — pick what fits your services and your state's medical-advertising rules.
Offers are illustrative. You set the offer copy and confirm it meets your state's medical-spa advertising rules; PostKnock prints and mails the card and queues the follow-up call.
Design it in the in-app Design Studio in your spa's colors and aesthetic. Five starting styles — same intro offer and same call follow-up behind each, so pick the look that fits your brand.
Bold
Photo
Minimal
Gradient
Overlay
Front Detail
Back (Address Side)
Available in 4×6, 6×9, and 6×11. All-in pricing includes printing and USPS First-Class postage.
Bring a prospect list as a CSV (event leads, broker-sourced affluent households, unconverted inquiries) or choose EDDM-style saturation of the carrier routes around your spa. PostKnock doesn't connect to your booking or POS software — for a list, you export the CSV, then import it.
Drop in the file and the import wizard auto-maps name, address, and phone. Segment by neighborhood or by interest (injectables vs. skin vs. body) if you want a different offer per group. Skip this step entirely if you're going EDDM.
Choose the wave sequence, set your intro offer, and design the postcard in the Design Studio in your brand colors. Add a QR code that points to your online booking page so prospects can self-schedule a consult.
Cards print and ship via USPS First-Class automatically. A few days after delivery, every prospect who hasn't booked drops into the Call Queue. Non-responders advance to the next wave on their own.
Staff calls down the queue with the pre-loaded script and logs each outcome. QR scans are tracked so you can see which cards drove online bookings versus calls — and which neighborhoods are worth mailing again.
Say a spa mails to 1,000 nearby households and runs a 3-wave new-client sequence with call follow-up. Here's the transparent math — the inputs are illustrative, not a guarantee:
Response rates are industry-typical ranges, not PostKnock results, and prospect-list response runs lower than house-list response. Per-client value depends on your services, pricing, and retention. Add a Pro subscription ($99/mo) on top of per-piece cost if you want the Call Queue and multi-wave sequencing.
Free to explore — you only pay when you're ready to send. Pay from your wallet per piece.
Single-wave postcard campaigns · Design Studio · QR tracking · From $1.05/piece
Everything in Free + Call Queue & multi-wave sequencing · From $0.79/piece
Per-piece pricing includes printing + USPS First-Class postage. Pro is $99/mo or $799/yr. No setup fees, no minimums, no contracts.
New-client postcards reach prospects, not patients, so there's no PHI on the card — just your offer, your brand, and a way to book. PostKnock keeps PHI off the postcard by default; we are HIPAA-aware, we don't sign Business Associate Agreements, and we don't ask you to upload PHI. You're responsible for confirming your offer copy follows your state's medical-spa and physician-advertising rules. Read our healthcare compliance approach →
It isn't either/or — but a postcard reaches the exact affluent homes near your spa without competing in a crowded feed or getting flagged for aesthetics creative, and it physically lands in the mailbox where nearly nothing else does. On Pro, PostKnock adds the piece social ads can't: a real front-desk call to every prospect who didn't book. That postcard-plus-call follow-up is usually what turns interest into a scheduled consult.
Yes. Use EDDM-style saturation mailing to blanket the carrier routes and ZIP codes around your spa — no names or addresses required. It's ideal for a grand opening or for owning the affluent blocks closest to your door. If you do have a prospect list (from an event, a broker, or unconverted inquiries), export it to CSV and import it instead; the wizard auto-maps the columns.
No — PostKnock does not connect to or sync with booking, EHR, or POS systems like Boulevard, Aesthetic Record, Vagaro, or Mindbody. If you want to mail an existing list, export it from those tools to a CSV and import it into PostKnock; the import wizard auto-maps name, address, and phone. Your QR code can still point to your online booking page so prospects self-schedule there.
One clear offer with a reason to act now works best: new-client pricing on injectables, a discounted first signature facial, a complimentary consult, or an intro month of your membership. Tie it to a season — bridal, summer-ready, holiday glow-up — when it fits. You write the offer copy and confirm it meets your state's medical-spa advertising rules; PostKnock prints and mails it.
Aesthetics prospects plan ahead, and treatments like injectables and peels often need time before an event. For wedding season, prom, summer, or the holidays, get your first wave in the mailbox roughly 4–6 weeks before the booking window so there's time for the consult, the treatment, and a follow-up. The follow-up call and later waves then catch the people who didn't book on the first card.
You can mail postcards on the Free plan with no calls at all. The built-in Call Queue — which puts each prospect in front of your front desk with a pre-loaded script after the card lands — is a Pro feature. For new-client acquisition, where prospects compare and hesitate, the call is usually what converts interest into a booked consult, so most spas use it.
Most spas run 3 to 4 waves over several weeks, mixing postcards with one or two call attempts for non-responders, to a few hundred or a few thousand nearby households depending on budget. PostKnock supports multi-touch sequences of up to 5 waves; you control the timing and which waves are postcards versus calls. A single card rarely lands a new client — the repetition and the follow-up are what work.
You pay per piece from your wallet: from $1.05 per 4×6 card on the Free plan, dropping to $0.79 on Pro, with printing and USPS First-Class postage included. Pro is $99/mo (or $799/yr) and adds the Call Queue and multi-wave sequencing. No setup fees, no minimums, no contracts — you only pay for what you send, so you can start small and scale the neighborhoods that respond.
No. PostKnock is direct mail plus phone-call follow-up — we don't send marketing email. The two channels we run are the postcard and, on Pro, the front-desk call queue. You can keep using your own email or texting tools alongside a PostKnock campaign; they just aren't part of the product.
Postcards that get attention. Callbacks that close the deal. Start free — you only pay when you send.
Start Free — No Credit Card1 Response figures are industry-typical ranges, not PostKnock results. Direct-mail response is commonly reported higher for house lists than for prospect/acquisition lists — e.g. ANA (Association of National Advertisers), Response Rate Report. New-client acquisition mailings go to prospects, so expect response toward the lower end. Your results depend on your list, offer, targeting, and follow-up.
2 PostKnock supports three postcard sizes (4×6, 6×9, 6×11) and multi-touch wave sequences of up to 5 waves.