Brighton and Hove · England
Window & door mastic in Seven Dials, Brighton and Hove
Window mastic for Seven Dials and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Leaking joints at the ends of sills
- Sealant in the wrong colour for the frame
- Gaps between the frame and the inside reveal
About our window mastic in Seven Dials
Frames and walls don’t move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. Common call-outs are for white mastic on grey or black frames and mastic that’s falling out in pieces, on patio & French doors, composite doors and uPVC windows.
In smaller places like Seven Dials, 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.
Each job carries a 12-month guarantee.
- Place
- Seven Dials (BN1, BN3, BN50)
- Region
- Brighton and Hove
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Use gentle cleaners on frames and sealant
- Don’t aim a pressure washer at the joints
- Paint up to the joint, not over it
- Keep solvents and bleach off the sealant
Try not to touch the new joint while it cures, following the cure time we give you. Keep jet washers away from the frames.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so early resealing is worth it.
Quotes for window mastic in Seven Dials
Call for a quick quote. What matters most is:
- The amount of work
- Mould in or behind the old joints
- The type of sealant required
- The number of rooms or windows
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
What we need to know
What to tell us when you ask for a quote:
- Photos by email, if that’s easy
- What the problem is, such as mould, gaps, leaks or cracking
- Roughly how big the job is
- Access, such as stairs, a lift or height
Need a quote? Please call 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and send you a clear quote before work begins.
Seven Dials questions
I let a flat near Brighton station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Seven Dials?
Yes, Seven Dials is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work on first-floor windows?
Yes, in most cases. We plan safe access before the job.
Can you do the inside joint as well?
Yes. Outside is the weather seal; inside closes the gap to the plaster. We can do either or both.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you.
Do you guarantee window mastic?
Yes. Our one-year guarantee covers every job.
Can you do several jobs on one visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Can resealing stop a draught around my window?
If the draught is coming in around the frame, yes. If it’s through the window’s own seals or a hinge, that’s a different fix, and we’ll say so.
What window mastic looks like in Seven Dials
Seven Dials is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. 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.
Rented homes near Brighton station change hands often, and sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Seven Dials is about 1 mile west of Brighton, in Brighton and Hove. Our applicators cover window mastic for homes and businesses in Seven Dials and nearby, as part of our work across Brighton and Hove. Seven Dials is one of 30 towns and villages in Brighton and Hove where we work.
Every address in BN1, BN3 and BN50 is covered for window mastic, from the main roads to the quietest streets. If you need window mastic at a property on Dyke Road, Powis Road and York Avenue or anywhere close by, our applicators can take on the job. Seven Dials is on the A2010, so it’s easy for us to get to. Close by, we work in West Hill (1 mile south-east), Prestonville (1 mile north), Brunswick (1 mile south-west), Brighton (1 mile east) and Hanover (1 mile east). Within a short drive, we also cover Hangleton (3 miles north-west), Saltdean (5 miles east), East Saltdean (6 miles east), Roedean (3 miles south-east), Rottingdean (4 miles east) and Ovingdean (3 miles east). As one of the bigger places in Brighton and Hove, Seven Dials has every kind of property, from flats to offices.
What’s near Seven Dials
In Seven Dials, that means homes and buildings near Stanford Junior School, The Cow pub and St. Ann's Well Gardens, among other places. There’s a railway station in Seven Dials itself: Brighton station. A little further out are Montefiore Hospital (less than half a mile west) and Brighton Transport Museum (0.6 miles north). Green spaces nearby include Newmarket Hill and Whitehawk Hill.
How the visit works
The work is kept neat and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours for a handful of frames, longer for a whole house, and we tell you how long to leave it before we go. A visit to Seven Dials is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Before we arrive
- Mention any parking rules near the property
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any sign-in or site rules at work premises
Getting a quote
If you’re in Seven Dials and need window mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Advice
How the job changes by surface
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. Each is cleaned out and resealed.
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
Also near Seven Dials
More services for Seven Dials
Do you need window mastic in Seven Dials?
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, while a joint packed solid can’t stretch. Backing rod sets the right depth.
Any of these means the joints need attention:
- Water coming in at the bottom corners of a door
- A bead that doesn’t match the frame
- Draughts coming in around windows and doors
- Untidy mastic left by window fitters
If you live in an older home near St Luke's Church Prestonville, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What your quote should include
- Which sealant they’ll use, and why
- Are they insured?
- How the colour is chosen
- How long to leave it before use
Work for landlords, hotels and businesses
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
When it isn’t the sealant
Sealant isn’t the answer to every problem, and we’d rather say so up front. It won’t solve:
- Damp problems in the wall away from the window
- A sash or casement that won’t close properly
- A frame that has rotted at the joint
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before booking.
Where we work in Seven Dials
- uPVC windows
- Window sills
- Patio & French doors
- Aluminium frames
- Timber windows & doors
- Composite doors