Brighton and Hove · England

Window Mastic in Carlton Hill

Window mastic for Carlton Hill, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Gaps between the frame and the inside reveal
  • Damp patches on the reveal after heavy rain
  • A bead that does not match the frame

Trusted window mastic in Carlton Hill

Window mastic for homes and businesses in Carlton Hill

Frames and walls don’t move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. If you have cracked internal joints between frame and plaster and mastic that has split away from the wall, we can help, whatever the surface.

In a smaller place like Carlton Hill, some walls face open ground and catch the full force of the weather, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.

We guarantee the work for a year. If something is not right with it in that time, tell us and we’ll put it right.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Location
Carlton Hill (BN2, BN1, BN50)
Region
Brighton and Hove
Guarantee
12 months on all our work
Quotes
Quoted before any work starts
Call
0345 464 0079
Last updated
26 October 2026

Carlton Hill: your questions answered

Is window mastic in a coastal place like Carlton Hill 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.

Will you come out to Carlton Hill?

Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Does someone need to be in?

We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.

Can you work on commercial sites?

Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.

Is the new sealant paintable?

That depends on the product. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before any work starts.

How long will my window job take?

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

Do you take out the old sealant first?

Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.

Where do you work from?

We work from Crawley. Our applicators cover Carlton Hill.

Landlord and commercial work in Carlton Hill

In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.

Honest limits

We’ll always be straight with you, so here’s what sealant cannot fix:

  • Damp coming through the wall itself rather than the frame joint
  • A frame that has rotted at the joint
  • A door that needs adjusting, rehanging or new seals

If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer.

Surfaces we seal

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

When to call us in Carlton Hill

Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.

Any of these means the joints need attention:

  • Black, perished sealant on frames
  • Whistling draughts around closed windows
  • Rain getting in at the frame or under the sill
  • Gaps where the sill meets the wall

Homes close to Greek Orthodox Church of the Holy Trinity include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.

What your quote should include

  • How the colour is chosen
  • What guarantee comes with the work
  • What the cure time is
  • How hidden problems are handled

Our hiring checklist

What happens if it’s left?

Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly, and it’s easier while the walls are being worked on anyway. Around Carlton Hill, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.

Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.

Why book with us

  • We never seal over old sealant
  • A 12-month guarantee on all work
  • We leave the area clean and tidy
  • Sanitary silicone with an anti-fungal additive in wet areas

See our cost guide or customer reviews.

Windows and doors in Carlton Hill

Carlton Hill is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you look after a building such as Carlton Hill Primary School, larger buildings have plenty of frames, and the mastic around each one ages. Letting a property close to Brighton station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

Carlton Hill is about 1 mile south of Brighton, in Brighton and Hove. For window mastic in and around Carlton Hill, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We are based in Crawley and cover Brighton and Hove. Across Brighton and Hove, we cover 30 places, Carlton Hill among them.

Our applicators cover all of the BN2, BN1 and BN50 postcode area for window mastic. If you need window mastic at a property on New Road, North Road and Brills Lane or anywhere close by, we can help. Main roads around Carlton Hill include the A259, so getting to you is simple. Close by, we work in Hanover (1 mile north), Brighton (1 mile north), West Hill (1 mile north-west), Kemptown (1 mile south-east) and Seven Dials (1 mile north-west). Within a short drive, we also cover Brighton and Hove (3 miles west), Aldrington (3 miles west), Hangleton (3 miles north-west), Patcham (3 miles north), Westdene (3 miles north-west) and Saltdean (4 miles east). Being one of Brighton and Hove’s larger places, Carlton Hill has homes, rented property and businesses of every kind.

Around Carlton Hill

In Carlton Hill, that means homes and buildings near Devonshire Arms, Queen's Park and Academy of Creative Training. The nearest railway station is Brighton station, roughly 0.5 miles north-west of the centre. Other landmarks nearby include Sussex Eye Hospital (0.7 miles south-east) and Churchill Square (0.6 miles west). Green spaces nearby include Whitehawk Hill and Newmarket Hill.

Map of Carlton Hill © OpenStreetMap contributors

Should I try it myself first?

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

What affects the quote in Carlton Hill

Your quote is based on your job. We look at:

  • How many rooms, windows or areas are involved
  • How much there is to do
  • Which sealant suits the joint
  • When we can work, for business premises

The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before any work starts, so you know where you stand.

Helping us quote

Photos help, but a description is a good start. Please mention:

  • Whether it’s a home or a business
  • A few photos by email, if you can
  • How many joints, rooms or windows are involved
  • Where the property is

Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we will explain what’s involved.

How it works

Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for a handful of frames, longer for a whole house. Parking around Carlton Hill is normally easier than in a town centre, but mention any lanes, gates or long drives. 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. The old mastic is cut out and the surfaces cleaned back.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Every joint is checked before we leave.

Preparing for the visit

  • Let us know about parking restrictions
  • Let us know about earlier repairs to the joints
  • For business premises, tell us about site rules or sign-in

Getting a quote

For window mastic in Carlton Hill, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before any work starts.

Get a quick quote

Related advice

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