Hampshire · England

Remedial sealant & repairs in Blackhill, Hampshire

Removing failed, mouldy or leaking sealant and putting it right in Blackhill, with a one-year guarantee on every job. Call for a quick quote.

  • Sealant peeling off a dusty or damp surface
  • Floor or wall movement joints that have failed
  • Decorators’ caulk around a bath or shower

Remedial sealant for Blackhill homes and businesses

Blackhill questions

Is Blackhill within the area you cover?

Yes. Blackhill is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Do you work for landlords with property near Romsey station?

Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.

How long does remedial resealing take?

Longer than a simple reseal, because every layer has to come out. Most jobs take a few hours.

Can you match the sealant colour?

We help you choose a colour that suits, from white and clear to greys and other shades. The choice depends on the product the joint needs.

How long before the joint can be used?

Cure times vary by product. Before we leave, we will tell you the cure time.

Can you work on commercial sites?

Yes. Hotels, offices and other businesses use us, and we are fully insured.

Will the old sealant be removed?

Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.

Are you insured?

Yes. We’re fully insured for domestic and commercial work.

About our remedial sealant in Blackhill

Some sealant jobs are not a simple reseal, because someone has already had a go. New sealant over old, smeared beads, unsuitable products and hidden mould all have to come out before the joint can be done properly. Common call-outs are for over-sealed joints coming away and decorators’ caulk around a bath or shower, across botched or over-sealed joints, mouldy bath & shower sealant and leaking tray & enclosure joints.

Around Blackhill, it’s houses and cottages rather than flats. The work is the same as anywhere: old material cut out, joints cleaned and a fresh finish laid.

Every job comes with a one-year guarantee.

Close-up of hands using a sealant gun on the joint between a glass shower screen and tiles
Place
Blackhill (SO51)
Wider area
Hampshire
Guarantee
12 months on all our work
Quotes
A clear price before we start
Phone
0345 464 0079
Page updated
26 October 2026

Looking after it afterwards

A little care helps the new joints last. We recommend:

  • Deal with small splits early
  • Look for stains below bathrooms now and then
  • Keep bleach and abrasives off the bead
  • Keep the room well ventilated

If the joint ever needs renewing, have it cut out, not sealed over. New silicone does not bond to old.

Leaks through failed sealant grow over time. Each use pushes more water behind the bead, into whatever is behind or below. Early action keeps it to a sealant job.

Remedial sealant around Blackhill

Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.

Rented homes near Romsey station change hands often, and a joint that keeps failing is best fixed properly while the property is empty. For site and facilities teams at buildings such as Wellow School, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes.

Blackhill is about 4 miles north-west of Totton, in Hampshire. Our applicators cover remedial sealant for householders, landlords and businesses in Blackhill and nearby, as part of our work across Hampshire. We cover 683 towns and villages across Hampshire. We also work in Southampton, about 8 miles from Blackhill.

Here we cover the SO51 postcode area for remedial sealant. If you are just outside Blackhill, we cover East Wellow (1 mile north-east), Canada (1 mile west), West Wellow (1 mile north-west), Wigley (2 miles south-east) and Newbridge (2 miles south). Within a short drive, we also cover Winchester (13 miles north-east), Eastleigh (10 miles east), Totton (4 miles south-east), Chandler's Ford (8 miles east), Hedge End (12 miles east) and Lymington (14 miles south).

What’s near Blackhill

Locally, jobs take us to homes and businesses close to Rockingham Arms and Embley and the streets around them. The nearest railway station is Romsey station, roughly 4 miles north-east of the centre. A little further out are Tatchbury Mount Hospital (2.9 miles south-east) and King Johns House (3.7 miles north-east). Open spaces near Blackhill include Copythorne Common.

Map of Blackhill © OpenStreetMap contributors

What happens if it’s left?

Hidden water does the most damage: wet floors, stained ceilings and swollen worktops. By comparison, sorting the joint is quick. Older cottages and farmhouses around Blackhill can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.

Why us?

  • Old sealant always removed completely
  • We’re fully insured
  • Anti-fungal sanitary silicone in wet areas
  • 20+ years of sealant experience

Take a look at what affects the cost and our reviews.

What affects the cost of remedial sealant

For a quick quote, just ask. The main things that affect it are:

  • Working hours on commercial sites
  • Whether the work is at height
  • Mould in or behind the old joints
  • The type of sealant required

The cost depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.

Helping us quote

Before you ask for a quote, have a think about:

  • If it’s domestic, commercial or a hotel
  • What the problem is, such as mould, gaps, leaks or cracking
  • Whether it has been sealed before
  • Access, such as stairs, a lift or height

Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work and send you a clear quote.

How the job changes by surface

Mouldy bath & shower sealant

Repeat mould generally points to a damp, poorly aired room. Along with resealing, we’ll mention if the room needs better ventilation.

Movement & expansion joints

Bonding on three sides is a common reason movement joints tear. Backing rod or bond-breaker tape prevents it, so the sealant grips the two sides only.

Work for landlords, hotels and businesses

We regularly work with letting and managing agents. Tell us the address, the job and how access works.

We also work for property managers and facilities teams. We can quote a run of properties together.

What we do, step by step

We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes a few hours for a typical bath or shower, longer where several layers have been applied. Somewhere like Blackhill needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. Surrounding tiles, trays and frames are protected first.
  2. The botched or failed sealant is cut away completely.
  3. We clean and degrease the joint and look for signs of movement or water.
  4. Once dry, a suitable sealant is applied and tooled.
  5. We give you the cure time and explain what caused the failure.

Getting ready for the visit

  • For indoor joints, keep the area dry beforehand if you can
  • Move anything stored near the joints
  • Mention any tricky access

Getting a quote

To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.

Get a price

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What sealant work cannot fix

Some problems need a builder, plumber or other trade rather than us:

  • Old mastic in a building from before 2000 that should be checked for asbestos before it’s disturbed
  • A bath, tray or worktop that moves until it’s properly fixed
  • A leaking trap, valve or supply pipe

If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think before you book.

Joints and surfaces we work on

  • Shrunken worktop sealant
  • Failed movement joints
  • Mouldy bath & shower sealant
  • Leaking tray & enclosure joints
  • Botched or over-sealed joints
  • Expansion joints
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job