Facebook ads work for builders when they target homeowners in your area with a specific offer for the extensions, loft conversions and full renovations you actually want, send people to a simple page built for that one job, and follow up every enquiry within minutes. Boosting posts and sending people to your homepage is where most of the money gets wasted.
Most builders I speak to are not short of work. They are short of the right work. The phone rings for small patch-up jobs, while the extensions, loft conversions and full renovations go to whoever the homeowner found first. Facebook ads let you go and find those bigger jobs, in the postcodes you want, instead of waiting for them.
Why Facebook ads work for builders
- You pick the area. Ads can be shown only to people in the towns or postcodes you cover.
- You reach people before they search. Someone thinking about extensions sees your work before they open Google and ring three companies.
- Your work sells itself. Before-and-after photos and short videos of real jobs are exactly the kind of content that stops people scrolling.
- The leads are yours. Unlike shared lead sites, an enquiry from your own ad goes only to you.
What it costs
In WordStream’s 2026 benchmarks for US lead campaigns, the home and home improvement category averaged about $42.95 per lead and $2.18 per click. That is an average across good and bad campaigns. A strong offer and a page that converts can bring it down a long way.
For context, here is what a well-built campaign can do. One of my clients has run on £10 a day since October: £3,209.70 spent, 742 enquiries, £4.33 each, straight from his Ads Manager.

That is not typical, and your numbers will depend on your trade, area and offer. But it shows a small budget can work when the page and the follow-up are built properly. Read the full case study.
The simplest way to judge it: if one of those jobs is worth £2,000 to you and you win 1 in 5 enquiries, every enquiry is worth £400. Paying £20 or even £50 for one is a very good deal. The full maths is in my guide to how much Facebook ads cost.
A simple campaign plan for builders
1. Pick one job to advertise
Do not advertise “all building services”. Pick the job you want more of, like extensions, and build the whole campaign around it. One job, one message, one page.
2. Make an offer worth replying to
“Free quote” is what everyone says. Something more specific works better, for example a fixed-price survey, a clear starting price, or a free check that is genuinely useful.
3. Use your own photos and videos
Before-and-after photos of an extension, a short walk-through video of a finished loft conversion, and progress shots from a live job all build trust. Homeowners want to see you finish what you start.
4. Send people to a page, not your homepage
The page should repeat the promise from the ad, show a few real jobs and reviews, and ask for only what you need: name, number, postcode and one question about the job. Every extra box loses people. This is what funnel building is about.
5. Follow up in minutes, not hours
One widely cited study of around 15,000 leads found that contacting a lead within 5 minutes, rather than 30, made it roughly 21 times more likely to qualify. You cannot answer the phone while you are on a job, so set up an instant text reply and a missed-call text back. That is where AI automation earns its keep.
Want this built for your building business?
I build the ads, the page and the follow-up, so you just get the enquiries. Free 30-minute call, no pitch.
Book a free callMistakes that waste money
- Boosting posts instead of running a lead campaign in Ads Manager.
- Targeting too wide, so you pay for clicks from people you would never drive to.
- No tracking, so Meta never learns which people actually enquire.
- Slow replies, so the enquiry you paid for goes to whoever called back first.
- Giving up after a week. The first couple of weeks are for testing ads and offers.
Where to start
Start with one job, one area and a budget you are comfortable testing with. Get the page and the follow-up right before you spend more. If you would rather have it done for you, see my Facebook ads pages for builders in Glasgow or general contractors in New York.
Frequently asked questions
Do Facebook ads work for builders?
Yes, when they are set up to generate enquiries for a specific job in a specific area, and every enquiry is followed up quickly. Boosted posts and generic “we do everything” ads rarely work.
How much should builders spend on Facebook ads?
Start with a budget you are comfortable testing with. One of my clients has run on £10 a day for months and brought in 742 enquiries. Judge the result by cost per enquiry compared with what a job is worth to you.
Are Facebook leads better than lead sites for builders?
Leads from your own ads come only to you, so you are not racing other trades on price for the same homeowner. You also build your own brand instead of renting someone else’s.
What should builders advertise on Facebook?
The bigger projects you want more of, such as extensions, loft conversions and renovations, with real photos of your finished work and a clear next step like a site visit.
Related guides
- Facebook ads for plumbers: how to get more boiler and bathroom jobs
- Facebook ads for roofers: a simple plan for more roofing leads
- Facebook ads for electricians: get rewires, not just call-outs
- Checkatrade vs Facebook ads: which is better for tradespeople?
