Kent · England
Window & door mastic in Broad Street, Kent
Window mastic across Broad Street and nearby, with old sealant always removed completely and a 12-month guarantee.
- White mastic on grey or black frames
- Water coming in at the bottom corners of a door
- Untidy mastic left by window fitters
Broad Street questions
Is Broad Street within the area you cover?
Yes, Broad Street is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Hollingbourne station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Do you do commercial work?
Yes, regularly. We can plan bigger jobs in stages.
What information do you need?
Let us know what needs doing and where. We’ll ask anything else we need to know.
How much does window mastic cost in Broad Street?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you when we finish.
Does the work come with a guarantee?
Yes, for 12 months. A yearly look at the joints helps them last.
Window mastic for homes and businesses in Broad Street
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We’re often asked to deal with hard, cracked sealant around windows and cracked internal joints between frame and plaster, across aluminium frames, window sills and uPVC windows.
In a village or hamlet like Broad Street, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
A one-year guarantee comes as standard, so you’re covered after we have gone.
- Location
- Broad Street (ME17)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a few frames, or a day or more for a whole house. In a small place like Broad Street, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Mention any parking rules near the property
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
Ask for a quote
For window mastic in Broad Street, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Related advice
When to call us in Broad Street
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.
Keep an eye out for any of the following:
- Black, perished sealant on frames
- Sealant in the wrong colour for the frame
- Cracked sealant at the sill ends
- Damp patches on the reveal after heavy rain
For landlords with property near Hollingbourne station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Questions to ask before booking
- Whether all the old sealant comes out first
- Is VAT in the price?
- How hidden problems are handled
- The length of the guarantee
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
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.
What the job involves on each surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so they get particular care.
Composite doors
Draughts round the door leaf usually come from worn seals or adjustment, not the mastic. We will tell you if that is what we find.
Keeping the joints in good condition
A little care helps the new joints last. We recommend:
- Do not paint over the silicone
- Don’t use solvent cleaners on the joint
- Avoid blasting the frames with a pressure washer
- Wipe condensation off the frames
Try not to touch the new joint while it cures, for as long as we advise. Keep jet washers away from the frames.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
Honest limits
In fairness, there are a few things sealant will not fix:
- Penetrating damp from a failed cavity tray or render
- Rotten timber, which needs a joiner first
- A sash or casement that will not close properly
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly before you book.
Joints and surfaces we work on
- Composite doors
- uPVC windows
- Aluminium frames
- Timber windows & doors
- Window sills
- Patio & French doors
Windows and doors in Broad Street
Historic houses like Leeds Castle (about 2.3 miles south) are a reminder that the area around Broad Street has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Leeds Castle, about 2.3 miles south, is one of the historic houses in the wider area around Broad Street.
Broad Street is about 4 miles east of Maidstone, in Kent. Broad Street gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Broad Street is one of 922 places in Kent we cover. Chelmsford is on our list too, about 32 miles from Broad Street.
Jobs for window mastic in ME17 works the same way as everywhere else we cover. We cover properties on Broad Street Hill and Pilgrims Way. We also cover Hucking (1 mile north-east), Hollingbourne (1 mile south-east), Eyhorne Street (1 mile south), Ashbank (2 miles south) and Bicknor (2 miles north-east). Further out, we also cover Maidstone (4 miles west), Ashford (14 miles south-east), Sittingbourne (6 miles north-east), Gravesend (15 miles north-west), Faversham (12 miles east) and Minster (12 miles north-east).
What’s near Broad Street
Typical jobs here are in homes near Hook and Hatchet pub and White Horse Wood. The nearest railway station is Hollingbourne station, roughly 1.1 miles south. Well-known places in the area include Leeds Castle (2.3 miles south) and KIMS hospital (2.9 miles west). Not far away are Detling Hill.
Towns and villages near Broad Street
Other services in Broad Street
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.