Website design for drainage engineers: call-first, honest and built for blocked drains

A drainage website has to get someone with a backed-up toilet or a flooded manhole to call you within seconds on their phone, then give planned-work customers separate, detailed pages for CCTV surveys, drain relining and commercial contracts. It should also be honest about the hours you really answer and the areas you really cover. Unavoidable Marketing is a Leeds-based agency that designs and builds websites for UK drainage engineers, on WordPress, owned by you, with founder Andrew Heppinstall on every strategy call.

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Last updated: 18 October 2026

Design for the person standing over the drain

The typical emergency visitor is not browsing. They have water coming up through a shower tray, a smell in the kitchen, or a manhole cover lifting in the drive. They are on a phone, possibly with wet hands, and they will ring the first firm that looks like it can come today.

For that visitor, the homepage on mobile should do four things before anything else:

• Show a large call button at the top, and keep a second one fixed at the bottom of the screen as they scroll
• Say in one line what you deal with: “Blocked drains, toilets, sinks and sewers unblocked”
• Say where you cover, in town names people recognise
• Say when you answer, truthfully

Everything else, from your kit to your survey reports, comes after that. We keep the top of the mobile page light so it loads quickly even on weak signal, with images compressed and nothing heavy loading before the call button.

Honest hours and coverage beat “24/7 nationwide”

Plenty of drainage sites claim 24 hour cover across half the country. Customers have learned that often means a call centre passing jobs to whoever is free, with a long wait and a surprise call-out charge. If you are a local firm, that honesty is your edge.

• If you answer 24 hours a day, say so. If you answer until 10pm and from 6am, say that instead
• Explain whether out-of-hours call-outs are charged differently, so nobody feels caught out
• List the towns and postcode areas you genuinely cover, and give rough arrival times only where you can keep them
• Show a real local address and a number that matches your Google Business Profile

Google checks that your website, Business Profile and directory listings agree. AI assistants rely on the same consistency when they decide which local firms to mention. Inflated coverage tends to work against you on both.

CCTV surveys deserve their own page

A CCTV drain survey customer is completely different from an emergency caller. They have time, they are comparing firms, and they often need a written report for someone else. Their page should explain:

• Who it is for: home buyers wanting a pre-purchase survey, homeowners with recurring blockages, landlords, insurers and builders planning an extension near a drain
• What the camera shows: root ingress, cracked or displaced joints, collapses, fat build-up and the line of the run
• What the customer gets: a written report with stills or video, and recommendations
• How quickly reports are sent after the visit
• A sample report page, with personal details removed, so people know what they are paying for

Home buyers often search for this when a mortgage survey or seller’s questionnaire raises a drainage question. A clear page answering “do I need a drain survey before buying a house?” catches them at exactly that moment.

Drain relining explained without the jargon

Relining is a bigger decision, and customers usually hear about it from you after a survey. They go home and search to check you are not overselling. Your relining page should be there when they do.

Domestic and commercial need different front doors

A homeowner with a blocked toilet and a facilities manager looking after a restaurant chain want very different things. Mixing them on one page means neither feels at home. We split the site into two clear routes.

Domestic

Domestic pages focus on speed, clear call-out terms, tidy workmanship and reviews from local homeowners.

Commercial

Commercial pages cover the work buyers actually procure:

• Planned maintenance and scheduled jetting for restaurants, pubs, schools, care homes and retail units
• Grease trap and interceptor cleaning, if you offer it
• Response times for contract customers and how out-of-hours call-outs work
• Insurance level, health and safety paperwork such as RAMS, and confined space training if your team holds it
• A simple enquiry form for multi-site or contract work, separate from the emergency button

Show the vans and the kit

Drainage customers want to see that you have the equipment to fix it today. Photos of your liveried vans, jetting units, CCTV crawler cameras and the team in uniform tell them you are an established local firm. Use your own photos, not stock images of a stranger with a rod. A short clip from a camera survey or a jetting job also works well, as long as it only plays when tapped.

Trust signals for a trade people worry about

Drainage attracts complaints about unclear pricing and upselling, so customers look for reassurance before they ring. Show:

• Clear call-out terms, in words, so there are no surprises on the doorstep
• Any trade association memberships or accreditations you genuinely hold
• Insurance cover and any guarantee on relining or repairs
• Google reviews, with the ones that mention honesty and quick arrival placed by the call button
• Named engineers with photos, so customers know who is coming

How we do it

We have been building websites since 2012, across 390+ projects, and 92% of clients come back. We currently work with 40+ UK trade businesses and judge every site on the calls, enquiries and booked jobs it brings in.