Hampshire · England

Window Mastic in Sarisbury

Our applicators work in Sarisbury on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.

  • Leaking joints at the ends of sills
  • Damp patches on the reveal after heavy rain
  • A bead that doesn’t match the frame

Need window mastic in Sarisbury?

Window mastic in Sarisbury, done properly

The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the line suits the frame instead of standing out. We’re often asked to deal with draughts coming in around windows and doors and draughty joints inside around the window, on aluminium frames, window sills and uPVC windows.

Houses in smaller places like Sarisbury can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. That’s hard on the mastic around frames and sills.

All our work comes with our 12-month guarantee.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Sarisbury (SO31)
Region
Hampshire
Cover
One year on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

Quotes for window mastic in Sarisbury

We quote each job individually. This is what makes a difference:

  • Whether the work is at height
  • How many areas need sealing
  • Whether old sealant or filler has to be cut out
  • Any mould that needs treating

Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.

Helping us quote

To make quoting easier, let us know:

  • Where the job is, and your postcode
  • If someone has resealed it before
  • Any access issues, like height or stairs
  • How many joints, rooms or windows are involved

Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.

For landlords and businesses

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.

Keeping the joints in good condition

Simple care keeps the joints in good condition. We recommend:

  • Ventilate rooms so frames don’t stay wet inside
  • Avoid blasting the frames with a pressure washer
  • Keep paint off silicone joints
  • Repaint timber before it’s bare

Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.

Leaks usually show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.

What we’re called out for in Sarisbury

Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces never bonded as it should, and it lets go sooner than it should.

These are the problems we’re asked about most:

  • Whistling draughts around closed windows
  • Leaking joints at the ends of sills
  • Hard, cracked sealant around windows
  • Black, perished sealant on frames

For an older house near a landmark such as Church of St Paul, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Before you book anyone

  • How the surfaces are prepared before sealing
  • What insurance they hold
  • When the joint can take water or movement
  • How long the guarantee is

10 questions to ask before booking

What happens on the day

When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for a few frames, or a day or more for a whole house. A visit to Sarisbury is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.

  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. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Every joint is checked before we leave.

Getting ready for the visit

  • Move anything stored near the joints
  • Mention any tricky access
  • Mention if the joints have been sealed before

How to get a quote

For window mastic in Sarisbury, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.

Get a quick quote

Related advice

When something else is needed

Honest advice matters more to us than a booking, so here’s what new sealant will not do:

  • Damp problems in the wall away from the window
  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • Broken hinges, locks or handles

Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.

Joints and surfaces we work on

  • Timber windows & doors
  • Patio & French doors
  • Composite doors
  • Aluminium frames
  • uPVC windows
  • Window sills

Should I try it myself first?

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.

If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Sarisbury homes and the weather

Sarisbury is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around window and door frames, especially on the side facing the sea. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

Schools such as Sarisbury Church of England Junior School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Swanwick station, renewing tired window mastic between tenants heads off draught and damp complaints.

Sarisbury is about 3 miles south of Hedge End, in Hampshire. Anywhere in SO31, our applicators can take on window mastic. Our Hampshire coverage runs to 683 places, Sarisbury among them. You can also see our page for Southampton, roughly 6 miles from Sarisbury.

We work across SO31 for window mastic and the streets around it. Whether your property is on Woodlands Close, Bridge Road and Painswick Close or anywhere close by, our applicators can take on the job. We also cover Swanwick (1 mile north-west), Park Gate (1 mile east), Sarisbury Green (1 mile south-west), Locks Heath (1 mile south-east) and Lower Swanwick (1 mile north-west). Larger places within reach include Winchester (13 miles north), Gosport (7 miles south-east), Havant (13 miles east), Eastleigh (7 miles north-west), Fareham (4 miles east) and Horndean (12 miles east).

Local landmarks in Sarisbury

Around Sarisbury, our work takes us to homes and buildings near Brookfield Community School and Language College and The Old Ship Inn, among other places. Sarisbury’s nearest station is Swanwick station, roughly 0.7 miles east. Nearby you’ll also find Coldeast (under half a mile south) and Bursledon Brickworks Industrial Museum (1 mile north). Not far away are Swanwick Lakes.

Map of Sarisbury © OpenStreetMap contributors

Your questions about window mastic in Sarisbury

Will you come out to Sarisbury?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Do you work for landlords with property near Swanwick station?

Yes. We work for landlords and agents as well as homeowners. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.

Are you insured?

Yes, we are fully insured for domestic and commercial work.

How many windows can you do in a day?

A handful of frames is a short visit. You’ll get a timescale with the quote.

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

Yes, we do both. Inside, the joint between frame and plaster is sealed neatly.

Can resealing stop a draught around my window?

In many cases. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.

Can you work on commercial sites?

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

Are you ARBOMaster approved?

Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.

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