£500 a month is a micro budget — there's no dressing that up. But it can still generate a steady flow of real enquiries if the setup is tight. The margin for error is zero: every setting matters, every pound of wasted spend is felt, and the temptation to tinker will kill your results faster than anything else.
A quick note on naming: we say "Facebook ads" because that's what everyone searches, but it's really Meta ads — the same £16/day campaign can run on Facebook and Instagram (plus Messenger and the Audience Network). Everything below applies to both. If you're new to the platform, start with Get to Know Meta Ads — it explains the auction, tracking and creative that this playbook assumes you already have in place. And if you're still deciding between Meta and Google, read Meta Ads vs Google Ads first.
The setup at a glance
One campaign, Leads objective, ad set budgets (ABO), instant lead forms, Facebook and Instagram only. New businesses run a single cold ad set at £16/day; established businesses split £13 cold + £3 retargeting. Then change nothing for the first month.
| Setting | What to choose |
|---|---|
| Campaigns | 1 only |
| Objective | Leads |
| Budget type | Ad set budget (ABO) — not CBO |
| Conversion location | Instant lead forms |
| Daily budget | £16 cold (new) · or £13 cold + £3 retargeting (established) |
| Placements | Facebook + Instagram only |
| Audience reach | Further limit the reach of your ads |
| Ads per ad set | 1 ad (flexible media, up to 10 assets) |
| First month | Change nothing |
Before you start: the Pixel and your audiences
Connect your website to the Meta Pixel first, then build two custom audiences your retargeting will use later — website visitors (30 days) and Facebook/Instagram engagers (90 days). Build them now even if you're brand new; they populate silently while your cold campaign runs.
On WordPress, a plugin handles the pixel; alternatively use Google Tag Manager with the Facebook container template. For better data quality, pair it with server-side tracking — browser-side pixels alone now miss a meaningful share of conversions. In Ads Manager, go to Audiences → Create audience → Custom audience and build:
- 1. Website visitors — last 30 days (source: your pixel).
- 2. Facebook & Instagram engagers — last 90 days (source: Meta accounts).
The campaign
You want one campaign only, with the Leads objective. At £500 a second campaign doesn't give you more reach — it just splits your data in half.
Budget strategy: ABO, not CBO
Select Ad set budget (ABO). It gives you fixed control over spend. With CBO, Meta allocates budget wherever it sees the cheapest delivery — which on a micro budget means your retargeting ad set gets starved completely.
Conversion location: instant forms
You'll be asked where to generate leads. Choose instant forms. At £16/day there's no room for a landing page that might not convert. Instant forms load inside Facebook or Instagram, are fast to fill on mobile, and cost less per lead than website conversions at every budget level we've tested. On a micro budget this isn't a recommendation — it's the only setup that reliably works.
Audience: where micro budgets live or die
Target your actual service area and nothing beyond it — your town, city, or county at most. £13/day across the whole UK reaches nobody; £13/day in Norwich reaches the right people multiple times. That's the difference.
Untick "Reach more people likely to respond to your ads". Advantage+ audience (2026): for Leads campaigns Meta switches this on by default, treating your targeting as suggestions. When you edit the audience, select "Further limit the reach of your ads", then under Age untick "Use as a suggestion". One caveat Meta buries: detailed targeting (interests, behaviours) always stays a suggestion — only location, age and gender become strict limits.
Pick one interest only
Set Age to match your real customer base (25–65+ is a safe default; 30–65+ for homeowners; 25–55 for B2B). Genders: all, unless your service skews heavily. Interests: pick one category only — stacking fragments delivery on a micro budget.
| Trade / business type | The one interest to pick |
|---|---|
| Plumber, electrician, landscaper, roofer | Homeowners |
| Bathroom / kitchen fitter | Home improvement |
| Heating / boiler specialist | Homeowners |
| Commercial B2B services | Small business owners |
If your geography is already tight (one town, small radius), you can skip detailed targeting entirely — a small, well-defined area with broad targeting often beats the same area sliced by interests.
The lead form
Keep it short — Name, Phone, Email, Message. Choose form type "More volume", set Flexible form delivery to Manual, and turn on SMS verification to filter spam. On a £500 budget you can't afford half your 20–40 leads being junk.
All submissions land in your Lead Centre (Meta Business Suite). Connect Google Sheets free, or use Zapier so leads post straight into email or CRM with automatic follow-ups — because lead value decays fast: respond within minutes, not hours. Also tick "Chat with leads from instant form" so a Messenger/Instagram chat opens after submission.
Ad set 1 — cold traffic (£13–£16/day)
Run one ad only. With Meta's 2026 flexible media you can load up to 10 images/videos into a single ad. Don't run multiple ads on a micro budget — you won't generate enough data for Meta to pick a winner, and you'll dilute spend across assets that never exit learning.
Video (strongly recommended): at least one sub-30-second video with subtitles. Two formats consistently perform: a customer testimonial filmed on a phone (authenticity beats production value), or a behind-the-scenes / "how it works" clip. Static images: a scroll-stopping hook over a strong image — show the outcome (a finished kitchen, not a toolbox); before-and-afters are extremely effective. Primary text: give it 3 different hooks plus your USPs and let the algorithm rotate them.
Ad set 2 — retargeting (£3/day)
Not for new businesses — you don't have an audience to retarget yet, and that's normal. Your cold campaign is building it now; add this in month 2 or 3. Established businesses with traffic and an active page should run it from day one.
Stack your two custom audiences — website visitors (30 days) + Facebook/Instagram engagers (90 days) — to give Meta enough people to deliver to. Watch frequency: aim for 3–5; if it climbs above 7–8 the audience is too small — pause and redirect that £3 to cold. Tweak the hook to re-engage: "Still thinking about it?" with a testimonial or limited-availability offer works harder than repeating the cold ad.
Placements: Facebook and Instagram only
Untick everything and select only Facebook and Instagram. At £16/day you can't afford a single impression going to Audience Network (poor quality) or Threads (doesn't convert for lead gen).
Meta offers five placement families — Facebook, Instagram, Messenger, Audience Network and Threads. Be ruthless: every penny needs to be on the two platforms where your audience actually engages.
What to expect in month 1
The campaign enters the learning phase for around a week — longer on a micro budget because there's less data. Don't expect much for the first 7 days, and don't restructure anything: no budget changes, no audience edits, no pausing because day 3 looked quiet. Every edit resets learning.
The one exception: in week one, check delivery is active and test-submit your own lead form to confirm leads are landing where you expect. A broken form running untouched for 30 days is the most common DIY failure we see — and on a micro budget, that's £500 in the bin.
| Trade / sector | Typical cost per lead |
|---|---|
| Home services (plumber, electrician, roofer) | £6–£15 |
| Bathroom / kitchen fitting | £8–£18 |
| Heating / boiler | £10–£20 |
| Landscaping / outdoor | £5–£12 |
At £500/month that's roughly 15–40 leads/month for most home-service trades. Not a flood — but if your close rate is decent and your average job value is £500+, the maths works:
When £500 isn't enough
Be honest: if your cost per lead is consistently above £30 and your average job value is under £200, the unit economics don't work at this budget. You'd need a higher-value offer, a better close rate, or more budget. £500/month is a starting point, not a ceiling — prove the channel works, then scale it.
New vs established: which setup is yours?
New business / no audience yet
One cold ad set at the full £16/day. Skip retargeting — build the two custom audiences now and add retargeting in month 2–3 once they've populated.
Established business
Cold ad set at £13/day + retargeting at £3/day from day one, using your stacked website-visitor and page-engager audiences.
Frequently asked questions
Is £500 a month enough for Meta Ads?
Yes — but only if the setup is disciplined. One campaign, one or two ad sets, tight geographic targeting, instant lead forms, Facebook and Instagram only. At £500/month you are running a micro budget, which means zero waste is tolerated.
Should I use ABO or CBO on a micro budget?
Ad set budget (ABO). It gives you fixed control over how much goes to cold traffic versus retargeting. CBO at this budget level will allocate almost everything to one ad set and starve the other — you cannot afford that.
Should I use lead forms or website conversions on a £500 budget?
Instant lead forms — no question at this budget. They cost less per lead, remove your website as a failure point, and convert faster on mobile. Website conversions can work at higher budgets where you have room to test, but at £16/day you need the most reliable setup from day one.
What is a good cost per lead on Meta for a small trade?
It depends on your trade. Home services typically see £6–£15 per lead. The key variable is not the cost per lead — it is what each lead is worth to your business.
How long before I see results?
Give the campaign a full 30 days before judging it. The first 7 days are the learning phase — Meta is testing who responds. On a micro budget this phase can feel especially quiet. Results improve in weeks 2–4 as the algorithm learns. The biggest mistake is changing things too early.
Should I start with £500 and scale up?
Yes — this is exactly the right approach. £500/month proves whether Meta Ads work for your business. Once you have run for a month or two you will have built a retargeting audience from your cold traffic — adding a retargeting ad set is the first scaling move, even before increasing budget.
The takeaway
£500/month works on Meta when the setup is disciplined: one campaign, tight local targeting, instant lead forms, Facebook and Instagram only, and the patience to leave it alone for 30 days. Prove the channel, build your retargeting audience as you go, then scale the same structure on more budget.
At Onyx we run Meta ads for tradespeople with proper tracking and instant lead follow-up built in from day one — so the numbers you scale on are real and no enquiry goes cold. No pitch, no pressure: we'll tell you straight whether £500/month will work for your business.