Hampshire · England

Martyr Worthy New Build Mastic

We cover Martyr Worthy for plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Sealant that never bonded to the surface
  • Gaps behind new kitchen upstands
  • Shower seals failing in the first year or two

New build mastic in Martyr Worthy

Leave it or put it right?

The builder is generally the first port of call while the snagging or warranty period runs. If it keeps failing or is not dealt with, we can reseal it properly. Around Martyr Worthy, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.

Why Martyr Worthy customers choose us

  • You choose the colour before work begins
  • Colour picked to suit the job
  • Anti-fungal sanitary silicone in wet areas
  • 180+ five-star Google reviews

Take a look at how sealant jobs are priced or customer reviews.

New build mastic for homes and businesses in Martyr Worthy

A new build should have a neat, sound bead at every joint. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water reaches anything behind it. We’re often asked to deal with plot mastic for developers ahead of handover and kitchen sealant that has pulled off the wall, on bathrooms & en suites, plot handovers and skirting & floors.

Older homes in small places like Martyr Worthy often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.

The work is covered for a year after we finish. If anything isn’t right with it, phone 0345 464 0079 or drop us an email.

Sealant gun close-up on a shower enclosure wall joint
Location
Martyr Worthy (SO21)
Region
Hampshire
Cover
12 months on all our work
Quotes
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026

How we quote for new build mastic

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

  • Whether the work is at height
  • The product the joint needs
  • The old material and how stubborn it is
  • Whether there’s mould to deal with

Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Ask us for a quote and we will explain what it covers.

Asking for a quote

There’s no need for technical detail. It helps if you can tell us:

  • Roughly how big the job is
  • Any previous sealing or DIY work
  • Whether it’s a home or a business
  • What’s wrong with the joints now

We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.

When it isn’t the sealant

New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:

  • Deciding who is responsible under a builder’s warranty
  • Leaks from pipes, valves or wastes, which need a plumber
  • Structural cracks in walls or ceilings

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

Joints and surfaces we work on

  • Show homes
  • Skirting & floors
  • Kitchens
  • Plot handovers
  • Bathrooms & en suites
  • Windows & doors

Common questions in Martyr Worthy

Is Martyr Worthy in your area for new build mastic?

Yes, Martyr Worthy is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.

I let a flat near Winchester station. Can you help?

Yes. We work for landlords and agents as well as householders. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will send you a clear quote.

Where do you work from?

We work from Crawley. Our applicators cover Martyr Worthy, along with the rest of our area.

Will it make a mess?

We keep the work tidy. We protect what’s around the joints, and the area is left clean when we finish.

Do you use white or clear sealant?

The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.

Is it normal for sealant to crack in a new home?

Lots of new homes see sealant crack early, because the house is drying and settling. Poor preparation at handover adds to it.

Is the work guaranteed?

Yes. Each job is guaranteed for twelve months.

How long before the joint can be used?

That depends on the sealant used, so follow the cure time we give you when we finish.

Signs you need new build mastic in Martyr Worthy

Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak and it shows once the home is in use.

Keep an eye out for these signs:

  • Gaps between new skirting and floors
  • Smeared, uneven beads picked up at snagging
  • New-build shower sealant that has already split
  • Second-fix sealing on new plots

Around Martyr Worthy, as everywhere, new build mastic is only as good as the preparation behind it.

Comparing quotes

  • What guarantee comes with the work
  • When the joint can take water or movement
  • Whether you can choose the colour
  • Whether they’re fully insured

How to choose a mastic man

How it works

A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take anything from a few hours to several days, depending on the number of plots. In a small place like Martyr Worthy, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. Each joint is checked for movement before any work starts.
  2. Old sealant is cut out and the joints cleaned.
  3. We make sure the joints are dry and prime them if needed.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. The finished joints are checked and the cure times given.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Plan for the work area to be out of bounds to pets and children
  • Mention any tricky access

Getting a quote

To get a quote, ring 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.

Ask for a quote

Read more

New homes and floors in Martyr Worthy

Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

If you’ve bought a new home near Winchester station, the sealant around baths, showers and frames is worth checking in the first year or two.

Martyr Worthy is about 4 miles north-east of Winchester, in Hampshire. Homes, rented property, offices and hotels in Martyr Worthy can book us for new build mastic. The work is guaranteed for a year. Martyr Worthy is one of 683 towns and villages in Hampshire we cover. We also work in Southampton, about 14 miles from Martyr Worthy.

Postcode districts we cover here for new build mastic: SO21. Whether your property is on Chilland Lane and Bridgetts Lane or a nearby road, we can help. If you’re just outside Martyr Worthy, we cover Itchen Abbas (1 mile east), Easton (1 mile south-west), Abbots Worthy (2 miles west), Itchen Stoke (2 miles east) and Kings Worthy (2 miles west). Larger places within reach include Basingstoke (13 miles north-east), Winchester (4 miles south-west), Eastleigh (10 miles south-west), Andover (13 miles north-west), Chandler's Ford (10 miles south-west) and Alton (13 miles east).

Near you in Martyr Worthy

Around Martyr Worthy, our work takes us to homes and buildings near The Plough pub. Martyr Worthy’s nearest station is Winchester station, roughly 3.5 miles south-west. Other landmarks nearby include Wolvesey Castle (3.5 miles south-west) and Royal Observer Corps Museum (2.8 miles south-west). Not far away are Winnall Moors and Twyford Down.

Map of Martyr Worthy © OpenStreetMap contributors

Work for landlords, hotels and businesses

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.

Letting agents and landlords in Martyr Worthy can book us as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.

How to look after the new joints

How long the joints last depends on use and care. We suggest:

  • Use the extractor fan every time you shower
  • Wait for the cure time before using a resealed shower
  • Do not wait for the house to settle if water is getting through
  • Do not seal over failed sealant yourself

Leave the sealant for the cure time we give you before showering or bathing. Silicone is usually left for about a day to cure enough for use.

Early snagging is easier snagging. Left alone, a small crack can become a leak in a busy bathroom.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job