Brighton and Hove · England
Window Mastic in Hanover
Our applicators work in Hanover on mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly.
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
- Sealant in the wrong colour for the frame
How to look after the new joints
Looking after new joints is easy:
- Walk round the house once a year and look at the joints
- Keep jet washers away from the mastic
- Keep paint off silicone joints
- Keep drainage slots and sill grooves clear
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak, and if anything looks wrong, just phone 0345 464 0079 or email us.
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.
Window mastic in Hanover, done properly
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that cannot flex, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. We work on window sills, composite doors and patio & French doors, and common reasons people get in touch are untidy mastic left by window fitters and white mastic on grey or black frames.
Around Hanover, 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, and any older timber or sash windows need a sealant that suits them.
A 12-month guarantee comes as standard, so you’re not left on your own once the job is done.
- Place
- Hanover (BN2, BN1, BN50)
- Wider area
- Brighton and Hove
- Cover
- One year on every job
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
Resealing frames is a short job: it takes anything from an hour or two to a full day, depending on how many frames there are. Leave it until water is coming in and you may need plastering and decorating as well. In an older home around Hanover, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why book with us
- Neat joints and a tidy finish
- Old sealant always removed completely
- Fully insured
- You choose the colour before work begins
See our cost guide and our reviews.
Hanover homes and the weather
Hanover 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. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you live in an older home near Church of the Annunciation, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Managing a site like Elm Grove Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Hanover is about 1 mile south of Brighton, in Brighton and Hove. Anywhere in BN2, we can carry out window mastic at your property. We cover 30 towns and villages across Brighton and Hove, large and small.
Work in BN2, BN1 and BN50 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Elmore Road, London Road and Milton Road or a nearby road, we can help. Other places close to Hanover include Brighton (1 mile north), Carlton Hill (1 mile south), West Hill (1 mile west), Seven Dials (1 mile west) and Kemptown (1 mile south-east). Larger places within reach include 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 south-east). Hanover is one of the larger places we cover in Brighton and Hove.
Around Hanover
Locally, jobs take us to homes and businesses close to Academy of Creative Training, Brighton Girls and The Dover Castle pub, among other places. The nearest railway station is Brighton station, about 0.6 miles west. Other landmarks nearby include Old Police Cells Museum (0.8 miles south-west) and Brighton General Hospital (0.6 miles east). Open spaces near Hanover include Whitehawk Hill and Newmarket Hill.
What affects the quote in Hanover
The quote reflects the job in front of us. We take into account:
- Access and height
- How many areas need sealing
- The old material and how stubborn it is
- Which sealant suits the joint
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, call 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Where the job is, and your postcode
- Roughly how big the job is
- Pictures of the joints, sent by email
- Access, such as stairs, a lift or height
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or send us an email.
Common problems we fix in Hanover
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
People normally contact us when they notice one of these:
- A bead that does not match the frame
- Water coming in at the bottom corners of a door
- Leaking joints at the ends of sills
- Mastic that has split away from the wall
Letting a property close to Brighton station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Before booking anyone
- Is the old sealant removed completely?
- Is VAT in the price?
- What happens if they find a problem under the old sealant
- Whether they’re fully insured
Surface by surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall and tooled smooth.
Composite doors
A composite door generally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Your questions about window mastic in Hanover
Does the coastal weather in Hanover affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
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 will give you a clear quote.
Can I add another job to the visit?
Yes, we can. Several rooms, windows or areas can go on one quote.
Will resealing my frames help with draughts?
If the draught is coming in around the frame, yes. If it’s coming through the window seals, we’ll tell you.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Where is Mr Mastic based?
We work from Crawley. We cover Hanover and the rest of Brighton and Hove.
Do you work for hotels and businesses?
Yes. We can plan bigger jobs in stages.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. Removing the old sealant completely is the only lasting way.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- A sash or casement that will not close properly
- Soft or decayed wood in the frame
- Condensation trapped between the panes
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Joints and surfaces we work on
- Patio & French doors
- Composite doors
- Aluminium frames
- uPVC windows
- Window sills
- Timber windows & doors
Nearby places to Hanover
More services for Hanover
The process
Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours for a few frames, or a day or more for a whole house, depending on how much there is to do. Parking around Hanover 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.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- 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.
Getting ready for the visit
- Keep children and pets away from the work area
- Clear items away from the joints we are working on
- Mention any sign-in or site rules at work premises
Get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.