Brighton and Hove · England
Window & door mastic in Preston, Brighton and Hove
Mastic around window and door frames, sills and patio doors for homes and businesses in Preston and across Brighton and Hove. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Hard, cracked sealant around windows
- Rushed sealant from a window installation
- Black, perished sealant on frames
Preston: your questions answered
Can you help a landlord with a rental near Preston Park station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
Is window mastic in a coastal place like Preston any different?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can you match the sealant to my frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we’ll use the nearest match.
Is it OK to seal over old sealant?
No, it won’t last. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Which products do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll tell you what we are using.
What do you need from me for a quote?
Let us know what needs doing and where. We will ask anything else we need to know.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
Window mastic for homes and businesses in Preston
Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you have water coming in at the bottom corners of a door and rushed sealant from a window installation, we can put it right, whatever the surface.
Homes around Preston range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
Whatever the size of the job, it’s backed by our 12-month guarantee.
- Where
- Preston (BN1, BN3, BN88)
- Wider area
- Brighton and Hove
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Towns and villages near Preston
More services for Preston
What window mastic looks like in Preston
Preston is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. Historic houses like Preston Manor & Gardens (about 0.2 miles south) are a reminder that the area around Preston 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.
Managing a site like St Bernadette's Catholic Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. In the older streets around St John the Evangelist's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Preston is about 1 mile north-west of Brighton, in Brighton and Hove. We carry out window mastic for homeowners, landlords and businesses in Preston and the surrounding area. Preston is one of 30 places in Brighton and Hove we cover.
Every address in BN1, BN3 and BN88 is within our area for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Home Road, Bates Road and Loder Road or anywhere close by, our applicators can take on the job. You will find Preston on the A23, so it’s easy for us to get to. We also cover Withdean (1 mile north), Prestonville (1 mile south), Hollingdean (1 mile east), Seven Dials (1 mile south) and West Hill (1 mile south). We also work in nearby towns such as Saltdean (6 miles south-east), East Saltdean (6 miles south-east), Roedean (3 miles south-east), Rottingdean (4 miles south-east) and Ovingdean (4 miles south-east).
Landmarks near Preston
We work in homes and buildings around Preston Park, The Crown and Anchor Inn and Varndean College and the streets around them. Preston has its own railway station: Preston Park station. Other landmarks nearby include Churchill Square (1.5 miles south) and Brighton Transport Museum (0.5 miles south). The countryside around Preston includes Newmarket Hill and Ladies Mile.
Surface by surface
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Window sills
Stone and concrete sills have their own joints, including the one between the sill and the frame above. Those are sealed with a product suited to stone or concrete.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- Faulty window hardware
- A frame that has rotted at the joint
- Damp problems in the wall away from the window
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Where we work in Preston
- Timber windows & doors
- Window sills
- uPVC windows
- Composite doors
- Patio & French doors
- Aluminium frames
Why deal with it now?
Redecorating is a good moment to renew the mastic. Fresh joints finish the job neatly. Around Preston, 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.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.
Why us?
- Sealant colour chosen to suit
- You choose the colour before work begins
- Arbo and Everbuild products
- More than 20 years in sealant work
How the visit works
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. After that, the work takes anything from an hour or two to a full day, depending on how many frames there are. Parking around Preston is generally 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.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
- Move anything stored near the joints
How to get a quote
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
Related advice
When to call us in Preston
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
It’s worth asking for a quote if you see:
- Hard, cracked sealant around windows
- Gaps where the sill meets the wall
- Whistling draughts around closed windows
- Mastic that is falling out in pieces
Letting a property close to Preston Park station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- How long the guarantee is
- How the joint is cleaned and prepared
- How the colour is chosen
- How long to leave it before use
Looking after it afterwards
So the new joints stay in good condition:
- Clean frames with a soft cloth and soapy water
- Keep drainage slots and sill grooves clear
- Keep timber frames painted
- Wipe condensation off the frames
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Catching it early keeps the fix to a reseal.