Under-sink Filters

Under-sink Filters | Water Purification | Plumbing | Bristol

Imagine turning on the tap in your Bristol kitchen and tasting nothing but pure, refreshing water—no chlorine tang, no metallic aftertaste, just clarity in every glass. HEP’s discreet under-sink filters slip quietly into your existing plumbing, stripping out sediment, chemicals and micro-contaminants while preserving the healthy minerals your body loves. It’s everyday convenience infused with professional-grade water purification, so every rinse, brew and sip feels instantly upgraded.

Our local engineers know Bristol’s pipes like the back of their hands, arriving with the right fittings and filter cartridges for a fuss-free installation that won’t clutter your cupboard space. From the first turn of the wrench to the final pressure check, we handle everything, then remind you when it’s time for a quick cartridge swap—easy maintenance that keeps your water consistently pristine.

Ready to give your household a subtle yet powerful plumbing upgrade? Chat with the HEP team today, and let’s bring that clear, confident flow straight to your sink.

FAQs

What contaminants do under-sink water filters remove from Bristol’s tap water?

Our multi-stage cartridges are designed for the specific chemistry of Bristol’s mains supply. They typically reduce chlorine, chloramines, unpleasant tastes and odours, limescale, heavy metals such as lead and mercury, common agricultural pesticides, residual pharmaceuticals, and emerging contaminants like micro-plastics. The result is clearer, better-tasting water while essential minerals such as calcium and magnesium remain.

How often do I need to replace the filter cartridges and can I do it myself?

For an average Bristol household the main cartridge lasts 6–12 months or roughly 2,000–4,000 litres, whichever comes first. A sediment pre-filter (if fitted) may need changing every 3–6 months in areas with older pipework. Replacement is straightforward: turn off the feed valve under the sink, twist-off the old cartridge, twist-on the new one, and turn the valve back on. Detailed instructions and a filter-change spanner are supplied, or we can schedule a maintenance visit if you prefer professional assistance.

Will installing an under-sink filter reduce the water pressure at my kitchen tap?

Modern high-flow cartridges are engineered to keep pressure loss to a minimum. On a typical Bristol mains pressure of 2–3 bar, users notice little or no drop at the dedicated filtered-water faucet, and there is no effect on your normal hot-and-cold supply. If you choose a single three-way mixer tap (hot, cold and filtered), only the filtered line is mildly restricted to ensure optimum contact time with the media.

Do I need a separate filtered-water faucet or can the system feed my existing mixer tap?

Both options are possible: • Standard set-ups include a compact, stylish filtered-water faucet that mounts next to your main tap, requiring only a 12 mm hole in the sink or worktop. • If you prefer one spout for everything, we can supply a three-way mixer that delivers hot, cold and filtered water through separate internal channels, keeping the purified water isolated. This avoids drilling another hole and is ideal for modern kitchens.

How much space and what plumbing connections are required under my sink?

A single cartridge system measures roughly 35 cm high × 12 cm wide, so it fits comfortably inside most standard kitchen cabinets. You’ll need: • A cold-water feed with a ½" (15 mm) isolation valve—often already present on the sink supply line. • Enough clearance below the cartridge for easy twist-off servicing. • A small section of cabinet wall or back panel to mount the bracket with two screws (supplied). No electrical connection or drain line is needed.

Do you offer professional installation and maintenance in the Bristol area, and what does it cost?

Yes. Our WRAS-approved plumbers cover all BS postcodes. A standard installation, including drilling the worktop for the faucet, pressure testing and commissioning, is £120 inc. VAT when purchased with a filter kit. Annual service visits that include a cartridge change, system sanitisation and a 10-point leak check are £79. Volume discounts are available for landlords or managed properties. Same-week appointments and 24-hour emergency support are included for all customers.