What Is High-Risk Tradesman Insurance?
High-risk tradesman insurance is ordinary trade cover written on tighter terms. The policy sections are the same, but the underwriter attaches limits, warranties and conditions that reshape what you are actually covered for.
Height, heat, depth, hazardous materials and structural work are the five things that push a quote out of a standard scheme. Understanding how each one changes the terms is the difference between buying tradesman insurance and buying a document that fails when you need it.
This guide covers what high risk means to an underwriter, the endorsements that get imposed, what it does to the price, and how to get cover when the online schemes say no.
If you work at height, with hot works, or with hazardous materials, expect your insurer to attach endorsements and warranties rather than decline you outright. Read any condition precedent on your schedule carefully, because breaching one can let the insurer refuse the whole claim, not just the part connected to the breach. Accreditations and a documented safe system of work are usually the fastest way to bring a high-risk premium down.
Compare trade insurance quotes even if standard schemes have turned you down.
- What makes a trade high risk to an underwriter?
- Which trades sit in the high-risk bracket?
- How does working at height change your terms?
- How do hot works and hazardous materials affect cover?
- What endorsements and restrictions get imposed?
- What is a condition precedent and why does it matter?
- How much more does high-risk cover cost?
- How do you get cover when standard schemes decline you?
- Which accreditations and controls move the premium?
- Frequently asked questions (FAQs)
What makes a trade high risk to an underwriter?
Not how dangerous the job feels. Underwriters price the likelihood of a claim and the size of the worst realistic one, which is a different question entirely.
Frequency against severity
A window cleaner has frequent small claims. A demolition contractor may go years without one and then produce a claim that runs into millions.
Both are rated up, for opposite reasons. Severity is what drives the endorsements, because that is where the insurer’s real exposure sits.
Why personal danger is not the test
Personal injury to you is not what a liability policy insures. The rating follows what your work can do to other people and property, which is why the case for liability cover gets stronger as the work gets heavier.
A trade can be physically brutal and still price cheaply. It can also be comfortable and price high, because the consequences of a mistake are catastrophic.
The five risk drivers
Height, heat, depth, hazardous materials and structural alteration are the five drivers that appear in nearly every declinature. A construction contractor doing all five is a specialist risk, not a scheme risk.
Location adds a sixth in practice. Railways, airports, power stations, petrochemical sites and marine work carry their own exclusions regardless of trade.
Which trades sit in the high-risk bracket?
Roofing, scaffolding, demolition, asbestos work, steel erection, tree surgery and deep excavation are the usual names. Some are simply rated up, others need a specialist market.
Rated up as standard
Most schemes will still quote a roofer or a scaffolding contractor, just at a higher rate and with a height endorsement attached.
The same applies to tree surgeons, groundworkers and steel erectors. Cover is available, the terms are simply narrower.
Referred to a specialist market
Licensed asbestos removal, high-rise cladding, demolition using explosives, live rail work and offshore work rarely fit a scheme at all. They go to specialist underwriters who want to see method statements before they quote.
Expect a proposal form rather than a price comparison. That is a sign the risk is being underwritten properly rather than rejected by a filter.
Where a standard trade crosses the line
A plasterer working from a tower at four metres is doing height work, whatever the trade code says.
Underwriters rate activity, not job titles. That is why the insurance roofers need looks different from a general builder’s policy even on the same site.
| Risk tier | Trades typically in it | Usual underwriting stance |
| Standard | Decorating, tiling, carpentry, small electrical and plumbing works | Scheme rates, few endorsements |
| Rated up | Roofing, scaffolding, tree surgery, groundworks, steel erection, welding | Quoted with height, depth or hot works endorsements |
| Heavily conditioned | Demolition, deep excavation, structural alteration, underpinning, cladding | Referred, with exclusions and conditions precedent |
| Specialist market only | Licensed asbestos removal, live rail, petrochemical, offshore, explosives | Declined by schemes, placed through specialist underwriters |
How does working at height change your terms?
Height is the most commonly endorsed exposure in trade insurance. Insurers cap it with a stated metre limit or a storey limit, and work above that line is simply not covered.
Height limit endorsements
A height endorsement states the maximum working height covered, often expressed in metres or as a number of storeys. Work above it is excluded rather than loaded.
Check the figure on your schedule before you price a job. HSE construction guidance treats falls from height as the leading cause of fatal injury on site, which is why insurers draw the line so hard.
Roof work and fragile surfaces
Fragile roofs, rooflights and asbestos cement sheeting attract their own conditions. Some wordings exclude walking on a fragile surface entirely, however the job is done.
Access method matters as well. Cover written around towers and MEWPs may not respond to work done off a ladder.
How do hot works and hazardous materials affect cover?
Both bring warranties rather than loadings. You get the cover, but only while you follow a defined procedure, and the insurer will check that you did.
The hot works warranty
Declared hot works usually brings a permit condition: a fire watch running well past the end of the job, combustibles cleared within 10 metres, and extinguishers at the work position.
Those numbers come from insurer permit templates such as the Allianz ACOM409 form, and from HSB and Munich Re loss prevention guidance. Missing one at the time of a fire can cost the claim.
Asbestos, lead and silica
Most trade policies exclude asbestos removal outright, and many exclude disturbing asbestos at all. HSE asbestos guidance sets the licensing and notification rules that specialist insurers underwrite against.
Lead, silica dust and solvent exposure sit in the same family of long-tail health risks. They are rated on the disease exposure they create years later, not on today’s job.
What endorsements and restrictions get imposed?
Height limits, depth limits, hot works warranties, structural and underpinning exclusions and location exclusions. These are the clauses that decide whether a claim is paid.
Depth and excavation limits
Excavation is usually capped at a stated depth, with anything deeper excluded or referred. Trench collapse and damage to buried services are the two losses behind the clause.
Service strikes are a separate exposure again. Some wordings exclude damage to underground services unless you have obtained and followed the utility drawings.
Structural, underpinning and demolition exclusions
Removing load-bearing walls, underpinning and any work affecting the stability of a structure are commonly excluded on standard wordings. Adding them back is a specific request, not an assumption.
Where design or specification is part of your service, you also need professional indemnity alongside public liability, because bad advice is not a liability claim.
Excluded locations
Railways, airports, power stations, petrochemical plants, docks, mines and tunnels appear on most exclusion lists. Working there without the endorsement leaves you uninsured on that site only.
The exclusion is usually written by location, not by trade. A one-day job on the wrong site is enough to trigger it.
| Endorsement or restriction | What it does | What to ask your broker |
| Height limit | Caps covered work at a stated height or number of storeys | What is my figure, and does it cover roof pitches and towers |
| Depth limit | Caps excavation at a stated depth | Does it cover trenching for drainage runs |
| Hot works warranty | Requires a permit, fire watch and clearance zone | What are the exact fire watch times and the fire excess |
| Asbestos exclusion | Removes cover for removal, and often for disturbance | Am I covered for accidental disturbance during other work |
| Structural or underpinning exclusion | Removes cover for load-bearing and stability work | Can it be bought back for the jobs I actually take |
| Location exclusion | Removes cover on railways, airports, power stations and similar | Which sites am I excluded from, and can they be added |
What is a condition precedent and why does it matter?
A condition precedent has to be met before the insurer has any duty to pay. Break it and the claim fails on the wording, whether or not the breach caused the loss.
Conditions, warranties and suspended cover
A warranty suspends cover for as long as you are in breach. Comply again and cover resumes, but a loss during the breach period is not picked up.
The Insurance Act 2015 removed the old rule that a breach discharged the policy forever. It did not make breaches harmless, which is the part people misread.
The duty of fair presentation
You have to present the risk fairly, including work you do rarely. Understating heights, hot works or asbestos exposure is the fastest way to lose a claim, and it also affects your employers’ liability position.
That duty is why the £5 million statutory employers’ liability minimum is only the start. The declared activity list is what decides whether the policy responds at all.
How much more does high-risk cover cost?
Enough to change how you price work. Trade risk is the biggest single factor in any trade premium, and high-risk trades sit at the top of every published range.
What drives the rating
Turnover, wage roll, subcontractor spend, claims history, height and depth limits and the indemnity limit you choose all feed the price. Claims history moves it more than anything else.
The limit itself is cheaper to raise than most people expect. SimplyQuote’s own public liability cost guide puts £1 million at around £106 a year against £140 for £5 million.
What the published figures show
SimplyQuote’s tradesman cost guide puts overall premiums between £200 and £1,200 a year, with decorators at £200 to £400 and scaffolders at £700 to £1,800. The gap is the risk, not the paperwork.
On £2 million of public liability alone, the same guide puts a roofer at £180 to £300 or more against a cleaner at £50 to £80. Treat any national average premium with suspicion.
| Published figure | What it covers | Source |
| £200 to £1,200 a year | Tradesman insurance overall, across trades | SimplyQuote tradesman cost guide |
| Decorators £200 to £400, scaffolders £700 to £1,800 | The spread between low and high risk trades | SimplyQuote tradesman cost guide |
| Roofer £180 to £300+, cleaner £50 to £80 | £2 million public liability, by trade | SimplyQuote public liability cost guide |
| £1m around £106, £5m around £140 a year | Cost of stepping the indemnity limit up | SimplyQuote public liability cost guide |
How do you get cover when standard schemes decline you?
Go to a broker with access to specialist markets and present the risk properly. A decline from an online scheme is a filter result, not an underwriting decision.
Why online schemes say no
Schemes work from a fixed trade list and hard rules on height, depth and hazardous work. Anything outside the box is refused automatically because there is nobody to ask.
That is not the same as being uninsurable. It means the risk needs a human underwriter who can read a method statement rather than a form that only knows a trade code.
Three declines from comparison sites tell you nothing about your risk. They tell you the schemes were not built for it.
What a specialist broker needs from you
Bring a full activity list with percentages of turnover, your five-year claims history, method statements and risk assessments, and evidence of training. Vague answers get vague terms.
Also bring the contract requirements you have to meet. Main contractor work usually specifies £5 million and infrastructure work often specifies £10 million.
Which accreditations and controls move the premium?
Accreditation, training cards and documented procedures are the levers you actually control. They shift terms more reliably than shopping around on price alone.
Cards, tickets and training
CSCS cards run for five years on most skilled cards, with the Red supervisor card at three. PASMA, IPAF and site supervision qualifications carry weight on height work.
Employers’ liability sits alongside all of it once you take anyone on, and your employees’ cover is compulsory from the first hire.
Schemes underwriters recognise
CHAS renews annually, as do SafeContractor and SMAS. NICEIC has no fixed expiry but runs an annual surveillance assessment.
Health and safety fines are unlimited in both courts and banded by turnover under the Sentencing Council guideline in force since 1 February 2016. Accreditation is cheap next to that.
| Accreditation or control | Renewal cycle | Why an underwriter cares |
| CHAS | Annual | Independent check on health and safety competence |
| SafeContractor | 12 months | Widely required on main contractor and public sector work |
| SMAS | 12 months | Accepted through the Safety Schemes in Procurement framework |
| NICEIC | No fixed expiry, annual surveillance assessment | Technical competence on electrical work |
| CSCS card | 5 years for most skilled cards, 3 for the Red supervisor card | Evidence of individual competence on site |
| Documented RAMS | Reviewed per project | Shows the permit and method controls actually exist |
Frequently Asked Questions (FAQs)
A combination of how often claims happen and how large the worst one could be. It is about the consequences of your work, not how dangerous the job feels to you.
No. It is the same public liability, employers’ liability and property sections written with height, depth, heat and hazardous material endorsements attached.
A clause capping the working height your policy covers, stated in metres or storeys. Work above that line is excluded rather than charged for.
Standard trade policies exclude asbestos removal, and many exclude disturbance too. Licensed removal needs a specialist market that underwrites it deliberately.
The insurer has no duty to pay for a loss occurring while you were in breach. Under the Insurance Act 2015 cover resumes once you comply again, but the loss in between is usually yours.
Section 11 of the same Act is the exception worth knowing. Show that the breach could not have increased the risk of the loss that actually happened and the insurer cannot rely on it.
Yes. The duty of fair presentation covers rare activities as well as regular ones, and an undeclared activity is the most common reason a high-risk claim fails.
Main contractor, local authority and NHS work usually specifies £5 million, while infrastructure, rail and utilities work often specifies £10 million.
It improves the terms you are offered more reliably than it cuts the headline price. CHAS, SafeContractor and SMAS all renew annually and are recognised across main contractor work.