Hampshire · England

Window & door mastic in Abshot, Hampshire

Professional window mastic in and around Abshot, with every bit of old sealant taken out first.

  • Rain getting in at the frame or under the sill
  • Gaps between the frame and the inside reveal
  • Leaking joints at the ends of sills

Book window mastic in Abshot

What we are called out for in Abshot

Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.

Signs it’s time to call us include:

  • Draughts coming in around windows and doors
  • Hard, cracked sealant around windows
  • Rushed sealant from a window installation
  • Rain getting in at the frame or under the sill

Homes close to St John include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in.

Questions to ask before you book

  • How the joint is cleaned and prepared
  • What guarantee comes with the work
  • Who turns up on the day
  • Whether all the old sealant comes out first

How to choose a mastic man

Window mastic in Abshot

A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. So the sealant has to stretch and recover, which is why we use a low-modulus product. We work on patio & French doors, timber windows & doors and uPVC windows, and common reasons people get in touch are gaps between the frame and the inside reveal and cracked sealant at the sill ends.

In a village or hamlet like Abshot, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

We stand behind the work with a 12-month guarantee.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Abshot (PO14)
Region
Hampshire
Cover
A year, on every job
Quote
A clear price before any work starts
Phone
0345 464 0079
Page updated
26 October 2026

Looking after it afterwards

After the cure time, these simple habits help:

  • Repaint timber before it’s bare
  • Keep paint off silicone joints
  • Keep solvents and bleach off the sealant
  • Wash the frames with mild soapy water

A yearly look round the frames is enough. Cracks and lifting edges are easy to spot early.

Leaks generally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.

Landlords, agents and businesses in Abshot

If you manage several properties in or around Abshot, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.

Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.

Windows and doors in Abshot

Abshot is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

Rented homes near Swanwick station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Schools such as Locks Heath Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.

Abshot is about 3 miles west of Fareham, in Hampshire. Abshot gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Across Hampshire, we cover 683 places, and Abshot is one of them. You can also see our page for Southampton, roughly 7 miles from Abshot.

We work across the PO14 postcode area for window mastic and the streets around it. We also cover the places around Abshot: Hook (1 mile west), Titchfield Common (1 mile north-east), Locks Heath (1 mile north), Warsash (1 mile north-west) and Titchfield (1 mile east). We also work in nearby towns such as Winchester (15 miles north), Gosport (6 miles south-east), Havant (12 miles east), Eastleigh (9 miles north), Fareham (3 miles east) and Horndean (12 miles east).

Landmarks near Abshot

Typical jobs here are in homes near Jolly Farmer Public House and Brookfield Community School and Language College and the streets around them. The closest station to Abshot is Swanwick station, about 2 miles north. Nearby you’ll also find Fareham Community Hospital (1.7 miles north) and Carron Row Farm Museum (1.7 miles north-east). Not far away are Holly Hill Woodland Park.

Map of Abshot © OpenStreetMap contributors

What happens on the day

We keep the work tidy and contained to the joints we’re treating, so you can carry on as normal. Expect the work to take a few hours for a few frames, or a day or more for a whole house, and we explain the cure time before we leave. In a small place like Abshot, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we look at every frame and agree the list.
  2. The old mastic is cut out and the surfaces cleaned back.
  3. Where gaps are deep, backing rod goes in first.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. We clear up and check every joint is fully closed.

How to prepare

  • Let us know about earlier repairs to the joints
  • Tell us if parking is tricky
  • Mention any leaks or damp you’ve noticed

Ask for a quote

Every job is quoted individually, so the first step is telling us about yours. Simply phone 0345 464 0079 or email us and describe the job.

Get a price

Read more

How we quote for window mastic

The price is agreed before any work begins. It’s based on:

  • The product the joint needs
  • The amount of work
  • The number of rooms or windows
  • When we can work, for business premises

Doing several joints on one visit usually makes better use of the time than several visits. You will get one clear quote for the whole job.

Asking for a quote

What to tell us when you ask for a quote:

  • The type of property
  • Roughly how big the job is
  • Where the property is
  • What the problem is, such as mould, gaps, leaks or cracking

Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will talk you through the work before giving you a price.

DIY versus a professional finish

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.

Surface by surface

Aluminium frames

Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.

Composite doors

Draughts round the door leaf generally come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.

FAQs for Abshot

Is window mastic in a coastal place like Abshot any different?

Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.

Will you come out to Abshot?

Yes. Abshot is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Can you seal the gap between the frame and the plaster indoors?

Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.

Are you insured?

Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.

What information do you need?

Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or drop us an email.

Where do you work from?

Our base is Crawley. We work across South East England, London and Scotland.

How much does window mastic cost in Abshot?

We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.

Can tenants book the work?

Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.

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