Modern grey shaker kitchen with quartz island, sealed worktop and splashback joints, finished by Apex Sealants
Available now · Herts, Beds, Bucks, Cambs, Northants & Greater London

Expert Silicone & Mastic Sealing

Specialist silicone and mastic application, interior and exterior — done properly, first time, every time. Watertight, not just good-looking.

Sole trader — not VAT registered

HERTS BEDS BUCKS CAMBS NORTHANTS GREATER LONDON FULLY MOBILE SOLE TRADER HERTS BEDS BUCKS CAMBS NORTHANTS GREATER LONDON FULLY MOBILE SOLE TRADER
What I Do

Expert Silicone & Mastic Application

I make joints disappear.

Every surface moves, shrinks and expands a little differently. I pick the right sealant and the right technique for the job in front of me — not a one-size-fits-all cartridge.

Finished bathroom with herringbone tiled shower, sealed vanity and window joints
01

Bathroom Sealant

Baths, showers, tiles and vanity units finished with a clean, mould-resistant line that actually lasts.

Red shaker kitchen with worktop and upstand sealed neatly around the hob
02

Kitchen Sealant

Worktops, upstands, sinks and around-unit joints sealed so water never gets behind the surface.

Window frame sealed against brickwork on a new-build extension
03

Window & Door Sealant

Weatherproof mastic around frames that keeps draughts and damp exactly where they belong — outside.

Roofline and brickwork sealant on a scaffolded new-build property
04

Exterior Mastic & Brickwork

Movement joints, soffits, meter boxes and roofline seals built to take whatever British weather throws at them.

Skirting board sealed neatly against herringbone flooring by the front door
05

Skirting & Flooring Lines

Skirting-to-floor joints finished flush and straight, even around tricky mitres and mouldings.

Mouldy, blown silicone in a shower corner before resealing
06

Resealing & Mould Removal

Old, blown or mouldy silicone stripped right out and replaced properly — not just gunned over the top.

See The Difference

Drag the line. Judge for yourself.

Real jobs, before and after — the seal, side by side.

Shower niche

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Before After Shower niche after sealant applied with clean bronze-trim line Shower niche before sealant, raw tile joints

Fluted tile splashback

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Before After Fluted tile splashback after sealant, flush clean line against marble countertop Fluted tile splashback before sealant, raw untreated joint

Soffits & expansion

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Before After Brick apex after exterior mastic applied along the roofline Brick apex before sealant, open gap along the roofline

Mould removal

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Before After Shower corner after mould removal and resealing, clean silicone line Shower corner before resealing, mouldy blown silicone
How I Work

From enquiry to finished seal

01

Enquire

Get in touch and tell me about the job — include as much detail as you can, pictures are always appreciated. Email, call, or use the form below, whatever suits you best.

02

Free quote

An in-person visit to assess the job, talk through colour samples and explain exactly what the work involves, followed by a proper written quotation for you to agree to. No obligation, no pressure to book.

03

Book the job

I'll fit around your schedule, weekdays or weekends. Most bathrooms and kitchens are done in a single visit, and every quotation comes with an approximate time frame so you know what to expect before I arrive.

04

Finished properly

Clean lines, mess cleared and tidied up after myself — the space left ready to use straight away, looking and feeling exactly as it should.

On Site

Follow the work as it happens

@apex_sealants
Instagram post from Apex Sealants Instagram post from Apex Sealants Instagram post from Apex Sealants Instagram post from Apex Sealants Instagram post from Apex Sealants Instagram post from Apex Sealants
What Clients Say

Trusted for a proper finish

Get In Touch

Tell me about the job

Fill this in and it'll open up an email to me with everything I need. I usually get back to you within twelve hours.

  • 07548 895132 — call, text or WhatsApp any time
  • harry@apexsealants.co.uk
  • @apex_sealants on Instagram — DMs welcome
  • Herts, Beds, Bucks, Cambs, Northants & Greater London
  • I usually reply within twelve hours

This opens your email app with the details filled in, addressed to harry@apexsealants.co.uk. Nothing is sent automatically.

Need a quote?Harry Allen · Apex Sealants Call now