Careers · Salary Guide · 2026
What does the damp industry actually pay? Here’s the honest 2026 picture for both roles — damp proofers and technicians on the tools, and damp surveyors doing the diagnosis and reporting — plus what genuinely moves the numbers. One note before the figures: these are guides drawn from advertised roles, not promises. Anyone quoting you an exact salary for a job you don’t have yet is selling something.
Damp industry salaries at a glance
Two different jobs sit behind those rows, and the right question isn’t “which pays more” but “which is the work you want” — the earning ceilings overlap more than people expect once self-employment enters the picture.
How much do damp proofers and technicians earn?
Damp proofing technicians do the remedial work — installing damp-proof courses, tanking and waterproofing, replastering, treating affected timber. Advertised roles typically start in the low £20,000s for trainees, with experienced technicians commonly in the mid £20,000s to mid £30,000s, and more in London and the South East. Technicians who add adjacent skills — plastering, structural waterproofing — are consistently the better paid, because firms can put them on a wider range of jobs.
The route in is short: the FODCT technician course is one day of hands-on practical training, independently City & Guilds Assured, and CITB funding may apply for eligible learners.
How much do damp surveyors earn?
Damp surveyors do the diagnosis — inspecting properties, taking moisture readings, identifying the cause and writing the report clients and landlords rely on. Employed roles are commonly advertised from the mid £20,000s at entry level, through the £30,000s with experience, and past £40,000 for senior and specialist positions, with London and the South East above that. The premium over technician roles reflects where the responsibility sits: the surveyor’s report is the document everyone else acts on — and under Awaab’s Law, increasingly the document that keeps a housing provider compliant, which is exactly why demand from that sector is growing.
The certified route is the FODCS Online certification — independently City & Guilds Assured, self-paced at roughly 15–20 hours, so most people certify within weeks around existing work. Whether the job itself suits you is a different question to the salary — our honest take on whether damp surveying is a good career covers who thrives in it and who doesn’t.
What actually moves the numbers
Region — London and the South East consistently advertise above the national ranges; the trade-off is cost of living and travel time between jobs. Experience and track record — in an unlicensed industry, demonstrable competence is scarce and priced accordingly. Certification — externally assured credentials open the better-paid employed roles and justify higher self-employed fees, because they’re the thing a client can actually verify. Specialisms — structural waterproofing and thermal imaging both push rates upward. And sector — social housing’s compliance-driven demand is the growth story of 2026–27, with Awaab’s Law Phase 2 widening statutory duties from October 2026.
Employed vs self-employed: the honest maths
Salary bands stop mattering the day you work for yourself. Damp surveys are commonly charged in the £150–£300 range depending on property and region — so self-employed income is a volume game: surveys won per week × your fee, minus the unglamorous bits (travel, insurance, marketing, the days spent quoting rather than earning). Technicians running their own remedial work price per job instead, and steady local demand can make a skilled self-employed technician out-earn an employed surveyor.
The variable nobody puts on a rate card: how easily clients can trust you. Self-employed earnings track visibility and credibility — which is why a verified listing on the public Find a Specialist register, a Code of Conduct clients can check, and professional branded reports aren’t marketing extras. They’re the difference between quoting against five other vans and being the one the homeowner already believes.
Pick the role, then get the credential that pays
Hands-on remedial work or diagnostic surveying — both routes are City & Guilds Assured, and both start with one course.
Train as a damp surveyor (FODCS Online)
Train as a technician (FODCT)
