Brighton and Hove · England
Window Mastic in Patcham
Mastic around window and door frames, sills and patio doors for Patcham, backed by a one-year guarantee. Call for a quick quote.
- Water coming in at the bottom corners of a door
- Rushed sealant from a window installation
- Cracked internal joints between frame and plaster
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Worn gaskets, brush seals or a door that has dropped
- Faulty window hardware
- Misting between the panes of a double-glazed unit (that needs a new unit)
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Composite doors
- Aluminium frames
- Window sills
Window mastic for homes and businesses in Patcham
Colour matters on a frame. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. Common call-outs are for whistling draughts around closed windows and old mastic that has gone black or come away, on timber windows & doors, composite doors and window sills.
Around Patcham, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows.
Big or small, it’s backed by our 12-month guarantee.
- Where
- Patcham (BN1)
- Wider area
- Brighton and Hove
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Different surfaces, different methods
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. We’ll point out any rot we find, as a joiner will need to deal with it.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain cannot run into the wall.
What window mastic looks like in Patcham
Patcham is within about 3 miles of 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. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Patcham Infant School, the mastic around its windows and doors needs looking after like any other building’s. 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.
Patcham is about 2 miles north of Brighton, in Brighton and Hove. We carry out window mastic for homeowners, landlords and businesses in Patcham, as part of our work across Brighton and Hove. Patcham is one of 30 places in Brighton and Hove where we work for window mastic.
We work across the BN1 postcode area for window mastic and the streets around it. If you need window mastic at a property on London Road, Vale Avenue and Eldred Avenue or a nearby road, we can help. Other places close to Patcham include Waterhall (1 mile north-west), Westdene (1 mile south-west), Hollingbury (1 mile east), Withdean (1 mile south) and Preston (1 mile south). Within a short drive, we also cover Carlton Hill (3 miles south), Hanover (3 miles south), Brunswick (3 miles south), Kemptown (4 miles south-east), Whitehawk (3 miles south-east) and Aldrington (3 miles south-west).
What’s near Patcham
Typical jobs here are in homes near Withdean Park, Patcham High School and The Dharma Primary School. The closest station to Patcham is Preston Park station, roughly 1.3 miles south of the centre. Nearby you’ll also find Clayton Castle (3.1 miles north) and Brighton Transport Museum (1.8 miles south). Green spaces nearby include Ditchling Beacon and Ladies Mile.
Patcham questions
Will you come out to Patcham?
Yes, we do. 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 Preston Park station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Can you get sealant to suit coloured frames?
Yes, in most cases. Tell us the frame colour when you get in touch and we will use the nearest match.
Do you have insurance?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
How do I get a quote for window mastic in Patcham?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before we start.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Nearby places to Patcham
More services for Patcham
Signs you need window mastic in Patcham
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.
The problems people normally mention when they call are:
- Gaps left after new windows were fitted
- Hard, cracked sealant around windows
- Draughts coming in around windows and doors
- Old mastic that has gone black or come away
Homes close to All Saints Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Comparing quotes
- How the surfaces are prepared before sealing
- What the cure time is
- Who does the work, and how experienced they are
- Which colour the sealant will be
What happens on the day
At the end, we look at the finished work together. The visit itself generally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. In a smaller place like Patcham, 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.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Tell us about any water getting in
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
Get a quote
For window mastic in Patcham, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before we start.
Advice
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Keep jet washers away from the mastic
- Repaint timber before it’s bare
- Use gentle cleaners on frames and sealant
- Paint up to the joint, not over it
Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Why deal with it now?
Draughts and leaks do not always mean new windows. If the frames and glass are in good order, resealing the joints is often all that is needed. If we find failed glass units or worn seals, we’ll tell you. Around Patcham, water from a failed joint in an older home can soak into timber and plaster, and that is a much bigger job than renewing the sealant.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
Why choose Mr Mastic in Patcham
- Colour picked to suit the job
- Sanitary silicone with an anti-fungal additive in wet areas
- Any old sealant cut out fully, not covered over
- Over 20 years’ experience
Take a look at our cost guide or our reviews.