A drain survey costs £120 to £185 across Derby and the towns I cover. Published national guides put the same job anywhere from £90 to £500. That spread is not really about where you live. It is mostly about whether anyone hands you a written report at the end.
What a drain survey costs in 2026
My own range for a drain survey is £120 to £185. The national guides quote higher averages, £250 across all survey types at MyJobQuote and £275 for a survey with a written report at Checkatrade, partly because those figures carry London weighting and partly because they are averaging very different products.
Here is what the published numbers actually describe. Checkatrade figures were last updated in July 2025, MyJobQuote’s in August 2026.
Look at the top row. Checkatrade is explicit that its cheapest tier gives you verbal findings with no report and no footage, and that is the single biggest reason the published range is so wide. The cheap end of the market is not a cheaper survey. It is a different thing being sold.
One caveat on every figure above, including mine. Drainage jobs contain surprises that only become apparent once the work starts, and a range quoted before anyone has looked down the pipe is a range, not a price.
Mistake one: paying for a survey on a blocked drain
You cannot survey a blocked drain. A camera cannot see through standing water and silt, so the survey stops at the blockage and tells you nothing about the run beyond it. The drain has to be cleared first, which is a separate clearance job at £80 to £180.
This is the call I take most often, usually phrased as “I need a drain survey, the drainage is blocked”. If you book a survey in that state you will pay for the clearance anyway and then pay again for the survey to be repeated properly. I would rather say so on the phone than turn up and charge you for a wasted visit.
Mistake two: buying a verbal summary instead of a report
The report is the product. A survey with no written record leaves you with nothing to show a solicitor, a seller, an insurer or the next contractor, and no way to prove what the drain looked like on the day.
I get asked for the verbal version regularly, normally as a phone call the day before the written report is due: “how did you get on?” It is a reasonable question and I understand the impulse, particularly when a purchase is moving. Nobody rings a building surveyor and asks them to summarise the structural report over the phone, though, and for the same reason I will not do it. What you remember from a phone call is not evidence, and the half of it you misremember is the half that matters.
A coded report follows a recognised classification. WRc created the Manual of Sewer Condition Classification in 1980 to standardise how defects are described, and it is now in its fifth edition. The practical value to you is that a defect written up to a published standard means the same thing to the next person who reads it.
Mistake three: asking what relining costs before anyone has surveyed
I cannot price relining from a description. The cost depends on pipe diameter, the length of the run and where it sits, and none of those are knowable until a camera has been down there. Relining starts at £425 and rises with diameter and length. Replacement repairs start at £735 and rise with time on site and materials.
I get “I’ve been told I need my drains relining, how much will it cost” most weeks, usually from someone who has had a verbal opinion from a previous contractor and is reluctant to pay for a survey on top. I understand the reluctance. But a number produced without dimensions is a guess, and if it is low it will be revised upwards once the work starts, which is worse for you than paying £120 to £185 to find out properly. A survey report also gives you something to send to three firms for comparable quotes, which is the only way to know whether a relining price is fair.
Occasionally the survey shows the drain does not need relining at all. That happens often enough to be worth the cost of finding out.
Mistake four: paying to fix a drain that is not yours
Not every pipe on your property is your responsibility. On 1 October 2011 roughly 200,000km of privately owned sewers and lateral drains in England transferred to the water and sewerage companies, and a lot of homeowners are still paying for work on pipes they no longer own.
The test is the curtilage. A pipe that stays within your boundary and serves only your house is yours. Once it crosses the boundary, or once it takes flow from a neighbouring property, it is generally the water company’s. That single distinction decides who pays for a repair that can run into four figures.
This applies to England. Wales was handled by a separate announcement and has its own arrangements, and Scotland and Northern Ireland are different again.
If you are not sure which side of the line your problem sits on, ask me and I will work it out from the layout at no cost. It takes a few minutes and it occasionally means I talk myself out of a job, which I would rather do than take money for a repair someone else is liable for.
Mistake five: assuming the homebuyer survey covered the drains
It almost certainly did not. RICS is direct about it: a Home Survey Level 3 does not investigate the plumbing, heating or drainage installations, because services are hidden in the construction and the surveyor does not carry out specialist tests.
The drainage and water search does not fill the gap either. A CON29DW tells you whether the property is connected to mains water and drainage and which sewers are public. It says nothing about the condition of the pipework inside your boundary, which is the part you would be inheriting.
That leaves a pre-purchase drain survey as the only thing that actually looks. MyJobQuote puts that at £250 to £350 for a standard property, and my own range is lower. Set against a collapsed drain under an extension, either figure is small, and I have never had a buyer tell me they regretted the spend.
Frequently asked questions
How much does a drain survey cost?
£120 to £185 for the work I do across Derby, Nottingham, Burton upon Trent and the surrounding towns, including the written report and drawing. National guides quote an average of £250 because they include London and because some of what they average is a verbal inspection rather than a reported survey.
Do I need a drain survey if the drain is not blocked?
Usually only when you are buying, building over the drainage, chasing a subsidence claim or dealing with a problem that keeps returning. If a drain blocked once, cleared cleanly and has behaved since, a survey is often money you do not need to spend. Clear it, watch it, and survey it if it goes again.
Why will you not quote for relining over the phone?
Because the price depends on diameter, length and location, and none of those can be established without a camera survey. Relining starts at £425 and moves with those three things. A phone figure would either be wrong or so wide as to be useless.
Can you survey a drain that is blocked?
No. The camera cannot see through the blockage, so the survey would cover only the length up to it. Clearance is £80 to £180 and has to happen first, then the survey gives you the full picture.
How long does it take to get booked in?
Surveys and clearance are usually within a few days. Repairs run at two to three weeks, because they need materials and a longer slot on site.
Is the cheapest quote ever the right one?
Sometimes. If you want to know where a blockage is and nothing more, the cheap tier does that job and there is no sense paying for a report you will not read. If anyone else is going to rely on the findings, a solicitor, an insurer or a buyer, the report is the thing you are buying and the cheap tier does not include it.
Before you book anything
Work out which of the five you are about to make. If the drain is blocked, get it cleared first. If you have been told you need relining, get the survey before you collect quotes. If you are buying, assume nobody has looked at the drains, because the homebuyer survey and the water search both say plainly that they have not.
If you are in Derby, Nottingham, Burton upon Trent, Ashbourne, Matlock or anywhere else across the East and West Midlands and you want a survey booked or an ownership question settled, call me on 07967 029 298. Surveys are usually within a few days. If it turns out to be a clearance rather than a survey, I can price that on the call without coming out to look at it.