Brighton and Hove · England

Moulsecoomb Window Mastic

Window and door frames in Moulsecoomb need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.

  • Hard, cracked sealant around windows
  • Gaps between the frame and the inside reveal
  • Mastic that is falling out in pieces

Trusted window mastic in Moulsecoomb

How we handle window mastic in Moulsecoomb

Homes in Moulsecoomb have every kind of window: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We are often asked to deal with gaps left after new windows were fitted and cracked internal joints between frame and plaster, across composite doors, aluminium frames and window sills.

In smaller places like Moulsecoomb, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.

A one-year guarantee comes with the work, just as it does everywhere we cover.

Location
Moulsecoomb (BN2, BN1)
Region
Brighton and Hove
Guarantee
12 months on all our work
Quotes
A clear quote up front
Call
0345 464 0079
Page updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Moulsecoomb: your questions answered

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

Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.

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

Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.

What information do you need?

Just the basics: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or drop us an email.

Does the work come with a guarantee?

Yes, for 12 months. Keeping drainage clear and checking the joints yearly helps them last.

Do the sealants smell?

There can be a smell while the sealant cures, but it fades. Ventilation helps.

Do I have to be there?

For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.

Is it messy?

Not at all. The area is protected while we work and cleaned up afterwards.

How do I get a quote for window mastic in Moulsecoomb?

We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.

When to call us in Moulsecoomb

Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. If the sealant cannot stretch, it splits.

People usually contact us when they notice one of these:

  • Gaps left after new windows were fitted
  • Leaking joints at the ends of sills
  • Hard, cracked sealant around windows
  • Cracked internal joints between frame and plaster

Homes close to St. Andrew's include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

What your quote should include

  • How the surfaces are prepared before sealing
  • Who turns up on the day
  • How long the guarantee is
  • How long to leave it before use

10 questions to ask before booking

DIY versus a professional finish

What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Leave it or put it right?

If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished. Homes in smaller places like Moulsecoomb can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.

We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.

Why book with us

  • Anti-fungal silicone where joints get wet
  • Homes, businesses and hotels
  • Tidy, careful work
  • Fully insured

Read how sealant jobs are priced and what customers say.

Moulsecoomb homes and the weather

Moulsecoomb 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. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

If you let a flat or house near Moulsecoomb station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like Moulsecoomb Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.

Moulsecoomb is about 1 mile north-east of Brighton, in Brighton and Hove. Our applicators cover window mastic for homes and businesses in Moulsecoomb, as part of our work across Brighton and Hove. We cover 30 towns and villages across Brighton and Hove, large and small.

Every address in BN2 and BN1 is covered for window mastic. Local streets include Natal Road, Lewes Road and The Avenue, and we cover them all. Other places close to Moulsecoomb include Bevendean (1 mile south-east), Hollingdean (1 mile west), Hollingbury (1 mile north-west), Brighton (1 mile south-west) and Hanover (1 mile south-west). We also work in nearby towns such as Brighton and Hove (4 miles west), Hove (3 miles west), Aldrington (4 miles west), Hangleton (4 miles west), Saltdean (4 miles south-east) and West Blatchington (3 miles west).

Local landmarks in Moulsecoomb

Typical jobs here are in homes near The Bevy pub, University of Sussex Library and Brighton Aldridge Community Academy. There’s a railway station in Moulsecoomb itself: Moulsecoomb station. Nearby you will also find Churchill Square (2.3 miles south-west) and Clayton Castle (4.6 miles north). For a walk, there’s Bevendean Down and Newmarket Hill.

Map of Moulsecoomb © OpenStreetMap contributors

What affects the cost of window mastic

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

  • How easy the joints are to reach
  • How many rooms, windows or areas are involved
  • How much old sealant there is and how hard it is to remove
  • The product the joint needs

The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.

What to tell us for a quote

What to tell us when you ask for a quote:

  • How we’d reach the joints
  • Where the job is, and your postcode
  • A few pictures by email, if you can
  • What’s wrong with the joints now

If you are in Moulsecoomb and need window mastic, phone 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before any work starts.

Aftercare tips

No joint lasts for ever, but care makes a real difference. Our tips:

  • Keep solvents and bleach off the sealant
  • Paint up to the joint, not over it
  • Do not aim a pressure washer at the joints
  • Walk round the house once a year and look at the joints

Silicone can’t usually be painted, so mention any painting plans before work begins. We can use a paintable sealant where that matters.

A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.

Surface by surface

uPVC windows

uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. White is the usual colour, with brown, anthracite grey and black for coloured frames.

Window sills

The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.

What happens on the day

On the day, there’s very little for you to do. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a handful of frames, longer for a whole house. In a smaller place like Moulsecoomb, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.

  1. First we look at every frame and agree the list.
  2. We remove the old mastic and clean the frame and the wall.
  3. Deep gaps are filled with backing rod to set the depth.
  4. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Finally we tidy up and check each joint.

Getting ready for the visit

  • Mention any tricky access
  • Clear the area around the work
  • Try not to wet indoor joints just before the visit

How to get a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.

Ask for a quote

Read more

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