How we chose
We built the candidate list from map searches for pond installers and pond shops across Telford, matched each firm against Companies House records and its own website, and sourced scheme memberships from the OATA member search, the BALI landscape directory and the TrustMark register [7] [8] [9] [12]. Before scoring, each business must meet our basic checks: it is who it says it is, it is trading today and can be reached, and anything it must hold by law is in place. Three local firms met all three and form the ranked table. What customers say counts most toward each score; qualifications count next, followed by trading history, cover, pricing clarity and website detail. All evidence is dated early September 2026.
How to hire
Start by matching the firm to the job. A koi keeper topping up stock, food and treatments belongs with a specialist shop, while a new pond dug, lined and planted as one project belongs with a builder. Brief the outcome rather than the method: how big a pond you want, whether it holds koi or wildlife, how level the garden is, and how machines and spoil heaps would reach the spot. Homes in Wellington and Dawley often bring long gardens with tight side access, while Madeley and Lawley lean towards newer estates where parking a skip and a digger needs a word with the neighbours first.
Make first contact count. Send photos of the garden, rough measurements, and notes on access, slopes and nearby trees, then ask for a site visit before anyone prices the work. A serious builder walks the plot, talks through depth, shelves, filtration and edging, and leaves you a written scope rather than a figure worked up without seeing the plot. Spring brings the rush as ponds wake up, so ask about lead times early in the year and get the visit booked before the diary fills.
No single licence covers pond building, so check competence the way you would a landscaper’s. For the aquatics side, the Ornamental Aquatic Trade Association keeps a member search where you can look up a business by name, and members sign up to its code of conduct [7]. Where the job is really landscaping with water in it, the British Association of Landscape Industries keeps a directory of accredited firms you can search the same way [8]. TrustMark registration points to checks on trading practices as well as competence [9]. Ask what each listing actually covers rather than taking a badge at face value.
Pond electrics deserve their own check. Pumps, filters, UV clarifiers and lighting all need safe outdoor power, and that wiring belongs with someone competent to certify it. GOV.UK lists the competent person schemes whose members can self-certify electrical work instead of going through building control [13]. Agree in writing who supplies and connects the outdoor supply, where the armoured cable runs, and which certificate you receive for it before the liner goes in.
Check the waste position yourself, because every new pond produces spoil that must go somewhere. Type the business name into the Environment Agency’s waste carriers search and check the name on the registration matches the firm on your quote [10]. Most builders price spoil removal into the job and carry it under their own registration; if you are keeping the soil for banks and beds, agree in writing how much stays and how the rest leaves the site.
Confirm who checks permissions before the digger arrives. Most garden ponds need no permission, but the rules tighten around protected streets: the Severn Gorge and Wellington are conservation areas among eight across the borough, and the Ironbridge Gorge carries World Heritage status with an Article 4 direction that removes some permitted development rights [5] [6]. Steep Gorge gardens in Ironbridge can also raise stability and drainage questions. Check Telford and Wrekin’s planning pages first and agree in writing that the builder has allowed for any consent the plot needs [5].
Compare itemised written quotes that split labour, materials, liner and equipment by named specification, spoil removal and VAT on the same written scope. A deposit for materials is normal, staged payments tied to visible milestones are normal, and full payment upfront is not. Agree start and finish dates, daily hours, where materials sit, and the aftercare position in writing: how the filter matures, who balances the water, and which planting is covered. Citizens Advice explains what a sound quote should contain [11].
At sign-off, collect the itemised invoice, any written guarantee terms, the manuals for the pump, filter and clarifier, and plain instructions for feeding, testing and seasonal care. Photograph the finished pond, the equipment bay and the cable runs while the builder is still there. Keep every message, quote and receipt until the first full season has passed. If the water will not clear or the level keeps dropping, write to the firm with dates and photos first, then turn to Citizens Advice if the reply does not come [11].
Pricing
Rough Telford ranges as of summer 2026, taken from a national 2026 guide built from real installer quotes: a small lined pond runs about £800 to £1,300, a medium pond £2,400 to £3,600, and a large pond £5,000 to £7,500, with the average pond installation near £3,000 and most builds taking between one and five days [1]. A simpler cost table puts a small garden pond with labour near £450 and up [2]. Treat each figure as a ballpark, then get local quotes.
Koi ponds cost more because depth and filtration do the heavy lifting. Expect £3,000 to £10,000 or more for a koi pond with filter and pump [4], with filtration and pump systems alone spanning £500 to £5,000 depending on specification [3]. Liner materials run from a few hundred pounds upward, and digger hire with an operator runs £300 to £600 a day across most of the country [3]. Extras such as waterfalls, lighting and UV clarifiers each add their own line. Pumps sized to turn the pond volume regularly, biological filters and UV clarifiers are the parts that matter most for fish health, so that is where the money should go first.
Access and ground move the price most. Tight side passages in older Wellington and Dawley terraces slow the dig, clay and rubble take longer than loam, and every barrow of spoil has to be carried out or skipped away. Depth adds cost faster than surface area, and steep Ironbridge plots can need retaining thought before the liner is even ordered. Shape, edging stone, planting, and whether old pond materials must come out first all shift the final figure [1].
Ask whether VAT sits on top of the quoted figures, since published guides vary in how they state it. None of the firms in this round publishes example rates, so treat any single fixed price for a full build with no breakdown as a question rather than an answer. Get the scope in writing before work starts, agree what changes the price if the dig reveals worse ground than expected, and ask what the pond costs to run: pumps and filters draw power all season, and one koi guide puts annual electricity alone at £100 to £350 [3].
Budget for upkeep as well as the build. One guide puts professional annual cleaning at £100 to £400, pump and equipment servicing at £50 to £150 a year, water treatments at £20 to £80, and replacement UV bulbs at £20 to £50 each [4]. Koi keepers add food and care on top. Ask your builder what the first year of running costs looks like for your pond, and get the servicing schedule in writing with the quote.
Red flags
Quotes a full pond build without visiting the garden or asking for photos and measurements.
Gives a single fixed price with no breakdown of labour, materials, equipment and VAT [11].
Asks for full payment in cash before digging starts, with no written quote or terms [11].
Will not name the liner, pump and filter going into your pond in writing.
Has no plan for where the dug-out soil goes and cannot give a waste carrier registration you can check [10].
Promises koi-ready water from day one with no mention of maturing the filter or testing the water.
Leaves pond electrics to an unnamed hand with no mention of safe outdoor wiring and certification [13].
Cannot show a company record, a scheme listing or a single reachable local reference when asked.
Goes quiet after the deposit is paid instead of confirming start dates in writing.
Corrections and business responses
Tell us what needs checking, or ask to claim a listing and reply to an assessment.