Hampshire · England

Window & door mastic in Newbridge, Hampshire

Window mastic across Newbridge and nearby, with every bit of old sealant taken out first.

  • Mastic that’s falling out in pieces
  • Untidy mastic left by window fitters
  • Hard, cracked sealant around windows

Trusted window mastic in Newbridge

How the visit works

When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work generally takes a morning for a couple of windows and a door. Somewhere like Newbridge needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We check how each frame can be reached safely.
  2. All the failed sealant is cut away, along with any loose debris.
  3. The surfaces are cleaned and left dry, and primed where the sealant calls for it.
  4. Deep voids are backed, then the sealant is gunned in.
  5. The joint is shaped to shed water and the area tidied.

Getting ready for the visit

  • Tell us if parking is tricky
  • Mention any tricky access
  • Let us know about earlier repairs to the joints

Ask for a quote

There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or send us an email.

Get a quick quote

Read more

Window mastic in Newbridge

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’re often asked to deal with cracked sealant at the sill ends and water coming in at the bottom corners of a door, across window sills, uPVC windows and patio & French doors.

Mastic can only go onto a dry, clean joint, so window work in Newbridge is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.

A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Place
Newbridge (SO40)
Region
Hampshire
Cover
One year on every job
Price
A clear price before we start
Phone
0345 464 0079
Updated
26 October 2026

Should I try it myself first?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.

Common questions in Newbridge

Is Newbridge within the area you cover?

Yes, Newbridge is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

Can you help a landlord with a rental near Ashurst New Forest station?

Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before work begins.

Do you have sealant for grey or black windows?

Yes. White, brown, anthracite grey, black and clear sealants are all available.

Is it OK to seal over old sealant?

No, because it fails. We remove every bit of old sealant first.

How long will my window job take?

That depends on the number of frames, how they’re reached and the state of the old mastic. You will know the timing when we quote.

Do you remove the old sealant?

Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

Which products do you use?

The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

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.

When to call us in Newbridge

Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, and over the years it loses its give, cracks and comes away.

People usually contact us when they notice something like this:

  • Leaking joints at the ends of sills
  • Black, perished sealant on frames
  • Damp patches on the reveal after heavy rain
  • Gaps left after new windows were fitted

Schools such as Copythorne CofE Infant School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Questions to ask before booking

  • Whether VAT is included
  • How hidden problems are handled
  • How the joint is cleaned and prepared
  • Who does the work, and how experienced they are

How to choose a mastic man

When it isn’t the sealant

It helps to know what we can’t do too:

  • Faulty window hardware
  • Misting between the panes of a double-glazed unit (that needs a new unit)
  • Damp coming through the wall itself rather than the frame joint

If in doubt, ring 0345 464 0079 or email us and we will say what we think.

Joints and surfaces we work on

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

Work for landlords, hotels and businesses

In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.

If you manage several properties in or around Newbridge, several properties can go on one quote. Send us the addresses and the work at each.

What window mastic looks like in Newbridge

Historic houses like Landford Manor (about 3.8 miles north-west) are a reminder that the area around Newbridge has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

In the older streets around Church of St Mary, the joint between an old wall and a newer frame is generally the first place rain gets in. For landlords with property near Ashurst New Forest station, renewing tired window mastic between tenants heads off draught and damp complaints.

Newbridge is about 3 miles west of Totton, in Hampshire. Every kind of property in Newbridge can book us for window mastic, old or new, large or small. Every job comes with our 12-month guarantee. Newbridge is one of 683 towns and villages in Hampshire we cover for window mastic. Southampton is on our list too, about 8 miles from Newbridge.

All of SO40 is within our area for window mastic, from the main roads to the quietest streets. If you are just outside Newbridge, we cover Copythorne (1 mile south-east), Cadnam (1 mile south), Wittensford (1 mile south-west), Winsor (1 mile south-east) and Bartley (2 miles south-east). Larger places within reach include Winchester (14 miles north-east), Eastleigh (10 miles east), Totton (3 miles east), Chandler's Ford (9 miles east), Hedge End (12 miles east) and Lymington (12 miles south).

Local landmarks in Newbridge

Newbridge’s nearest station is Ashurst New Forest station, roughly 3.9 miles south-east. Well-known places in the area include Tatchbury Mount Hospital (2.1 miles east). Not far away are Copythorne Common.

Map of Newbridge © OpenStreetMap contributors

Why it’s worth doing now in Newbridge

Redecorating is a good moment to renew the mastic. A clean new bead makes new paint or render look finished. Older cottages and farmhouses around Newbridge can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.

Why book with us

  • An ARBOMaster approved applicator
  • Arbo and Everbuild products
  • Anti-fungal silicone where joints get wet
  • Rated 4.9 stars on Google

Read what affects the cost and customer reviews.

Surface by surface

Aluminium frames

Metal frames expand in the sun and are often slim, with little room for error. A neat, narrow bead in a colour to match suits the frame.

Composite doors

An exposed front door gets wind-driven rain, and the top and bottom corners tend to fail first. Those corners get the most care.

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