Careers & Business · 2026 Guide
Starting a damp proofing business in 2026 is a genuinely good move for the right person — real demand, low startup costs by trade standards, and a market that’s actively turning against the cowboys. But most guides to this are written by people who’ve never priced a survey. Here’s the honest version: the six steps that matter, what each one actually costs, and the pitfalls that sink new firms in year one.
Why the timing is good — three reasons you can check
First, the work isn’t going anywhere: the UK has some of the oldest housing stock in Europe, and older solid-walled buildings produce moisture problems permanently. Second, the law is creating buyers: Awaab’s Law has made documented damp competence a statutory requirement for social landlords, with Phase 2 widening the duties from October 2026 — housing providers, and increasingly private landlords getting ahead of it, need competent people on call. Third, the trust gap is your opening: damp proofing’s reputation problem means the operator who can prove competence wins against cheaper competition. Homeowners are being actively taught what to check — our own guide on how to choose a damp proofing company tells them exactly what separates a professional from a cowboy. Build the business that passes every check on that list and the market does your marketing.
Whether the work itself suits you is a different question — our honest take on whether damp surveying is a good career covers that before you spend anything.
The six steps, in order
Get certified before you trade
Damp proofing is unlicensed in the UK, so nothing legally stops anyone with a van from starting tomorrow — which is precisely why a verifiable credential is your core commercial asset, not a formality. Decide which business you’re building: diagnostic (surveys and reports — train on the FODCS Online surveyor certification), remedial (the physical works — the FODCT technician course), or both, which is the strongest position for a one-person firm. Both are independently City & Guilds Assured, and CITB funding may apply. Comparing providers first? Read our guide on how to choose damp proofing training.
Set the business up properly
Most start as a sole trader (simple, quick, HMRC registration) and incorporate as a limited company once income justifies it — the right choice depends on your circumstances, so take proper advice on that one; we’re surveyors, not accountants. What’s not optional: insurance before the first job. Public liability as a minimum; if you survey, diagnose or write reports, professional indemnity too — your report is professional advice, and PI is what stands behind it if a diagnosis is ever challenged. Employers’ liability becomes a legal requirement the day you take anyone on.
Offer only what you’re trained to deliver
Build the service list from your certification, not from what competitors advertise. If your training covered condensation investigation, timber assessment and rising damp diagnosis, those are your services; structural waterproofing joins the list when you’ve done the training for it, not before. This isn’t caution for its own sake — overreaching your competence is how new firms end up with complaints, comebacks and a reputation that’s expensive to repair. A short list delivered excellently beats a long list delivered nervously, and you can widen it course by course.
Price with itemised, diagnosis-led quotes
Two rules cover most of it. Diagnose before you quote remedial work — quoting treatment before establishing the cause is the cowboy move the whole market is learning to spot. Itemise everything — diagnosis, works, materials, price, timescales, guarantee terms. On guarantees: word them precisely, and if you offer insurance-backed guarantees, they’re available on request — never implied as standard. Price from your local market rather than a national average: surveys commonly sit in the £150–£300 range depending on property and region, remedial work prices per job. Transparent quotes lose you the customers you didn’t want and win you the ones who pay on time.
Build trust people can verify
Here’s the economics of this trade in one sentence: clients can’t judge your competence, so they buy what they can check. A verified listing on the public Find a Specialist register, accountability to a Code of Conduct, the vetted-member badge, and professional branded survey reports — that’s what Federation of Damp membership exists to provide, and it’s the infrastructure a one-person firm can’t build alone. Around it, the basics done properly: a simple website that shows real jobs, a Google Business Profile with genuine reviews (never purchased or invented — one fake review can undo a year of real ones), and photographs of your actual work rather than stock images.
Go where the demand is being created
Homeowner work is the bread and butter, but the growth market is compliance-driven: social landlords now carry statutory deadlines to investigate and fix damp under Awaab’s Law, Phase 2 widens those duties from October 2026, and letting agents and private landlords are moving early ahead of their turn. These clients need exactly what a certified, documented, accountable operator provides — evidence-based investigation with a paper trail. Introduce yourself to local housing providers and agents with that framing, and you’re selling compliance, not damp proofing.
The pitfalls that sink year one
Underpricing to win work — cheap wins the wrong clients and starves the business of the margin that funds insurance, tools and slow months. Selling treatment without diagnosis — it’s faster money until the first comeback, and comebacks compound. Expanding services ahead of training — the complaint you can’t defend is the one about work you weren’t certified to do.
Ignoring cashflow — deposits on remedial work and prompt invoicing on surveys aren’t optional niceties; most small trade firms that fail are profitable on paper and broke in the bank. And treating paperwork as the enemy — in this trade the paperwork is the product: the reports, quotes and records are what clients pay for, what compliance work demands, and what protects you when someone disputes a job.
Step one starts here
Certification first, business second — that’s the order that works. Train as a surveyor, a technician, or both, then build on the register.
Train as a damp surveyor (FODCS Online)
Train as a technician (FODCT)
