What a Homebuyer Report Does Not Cover

A RICS Home Survey Level 2, the report most buyers in England and Wales pay for, records that a property has plumbing, heating and drainage. It does not test any of it, and the surveyor is not qualified to. That gap is where a large share of the expensive surprises after completion sit.

What a homebuyer report covers

A RICS Home Survey Level 2 is a visual inspection of the building, its services and its grounds, ending in a traffic light rating for each element. Green means no repair is needed. Amber means repairs that are not urgent. Red means defects that are serious or need attention now.

The surveyor looks at the roof, walls, windows, doors, floors, ceilings, chimneys, insulation, damp, timber and the grounds. Concealed areas that the occupier normally opens, such as a loft hatch, are inspected where it is safe to do so. Fixed floorboards stay down, heavy furniture stays put, and nothing in the structure is opened up.

It costs £400 to £1,000 (HomeOwners Alliance, October 2026), and for a conventional house in reasonable condition it is the right survey to buy. What it leaves out is the expensive part.

The one paragraph that matters

Every Level 2 report carries the same disclaimer about services. RICS’s own description of the survey puts it like this:

Services are generally hidden within the construction of the property. This means that only the visible parts of the available services can be inspected, and the surveyor does not carry out specialist tests.

Then it gets specific:

The visual inspection cannot assess the efficiency or safety of electrical, gas or other energy sources. It also does not investigate the plumbing, heating or drainage installations (or whether they meet current regulations).

The surveyor does not check the internal condition of any chimney, boiler or other flue either.

Your report will record that a boiler exists. It will not tell you whether parts are still made for it, whether it was installed by a competent person, whether the gas supply is safe, whether the incoming main is lead, or whether the drain under the garden has collapsed. None of that is the surveyor’s job.

Paying for a bigger survey does not fix it

Buyers often assume the gap closes if they upgrade to a Level 3. It narrows. It does not close.

Scope wording from RICS, Helping you choose the right survey. Costs from HomeOwners Alliance, October 2026.

No level tests the services. Level 3 is the only one where anything gets switched on, and the surveyor is watching it run, not assessing it. Spending another £500 on a Level 3 buys you more detail about the building. It does not buy you a heating engineer.

What the gap costs

When you find the fault matters more than the fault.

Find it before exchange and it is a negotiation. The seller drops the price, does the work, or you walk away. Find it after completion and it is your bill, due at the point you have the least money you will have all year.

Typical costs for work a Level 2 report would not flag:

Those are national averages. London labour runs higher, and PH247’s own range for a boiler replacement is £4,500 to £6,500.

None of these are rare faults. A property built before 1970 may have lead pipework connecting it to the mains, according to the Drinking Water Inspectorate, and a great deal of London housing predates 1970. Boilers that were discontinued years ago are still running in thousands of flats, and once the manufacturer stops making the parts, the next breakdown is a replacement rather than a repair.

What to do before you exchange

Three things, in order of cost.

Ask for the paperwork. This is free and often revealing. Request the gas safety certificate, the boiler’s Benchmark commissioning book, any service records, the Building Regulations compliance certificate for the boiler installation, and the G3 certificate if there is an unvented hot water cylinder. A seller who cannot produce any of it has told you something.

Read the surveyor’s recommendations properly. Where a Level 2 surveyor cannot reach a conclusion with reasonable confidence, they are supposed to recommend further investigation. Treat that line as the report stopping and somebody else needing to start.

Get a heating engineer to walk the property. PH247’s Full Property Health Check is a flat £300 including VAT, anywhere inside the M25. A Gas Safe registered engineer goes through the boiler, the hot water cylinder, the heating system, the visible pipework, the incoming main, the drainage and the gas installation, and you get the report before you exchange.

That is a visual inspection too. We do not dismantle anything, pressure test the system or carry out a gas safety check. What differs is who is doing the looking. A surveyor records that a boiler is present. An engineer who fits boilers every week recognises a discontinued model, spots lead pipework, and knows what a cylinder with no certificate means for the cost of putting it right.

Sources

• RICS, Description of the RICS Home Survey Level 2
• RICS, Helping you choose the right survey
• HomeOwners Alliance, How much does a house survey cost in 2026, updated 22 October 2026
• Drinking Water Inspectorate, Lead in drinking water
• Checkatrade, New boiler costs, updated March 2026
• Checkatrade, Main water pipe replacement cost
• Checkatrade, Collapsed drain repair cost, cost table dated May 2024