Kent · England
Window & door mastic in Hamstreet, Kent
Window mastic for Hamstreet and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Black, perished sealant on frames
- Gaps between the frame and the inside reveal
- Cracked sealant at the sill ends
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Wipe condensation off the frames
- Keep paint off silicone joints
- Check the mastic once a year
- Clean frames with a soft cloth and soapy water
Most silicone sealants won’t take paint, so if you’re planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Window mastic in Hamstreet, done properly
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. If you’re dealing with damp patches on the reveal after heavy rain and gaps left after new windows were fitted, we can put it right, on composite doors, timber windows & doors and patio & French doors alike.
Outdoor sealant needs dry, clean surfaces, so work on frames around Hamstreet is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
A one-year guarantee comes as standard, so you are covered after we have gone.
- Where
- Hamstreet (TN26)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Hamstreet questions
Can you help a landlord with a rental near Ham Street station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Is Hamstreet within the area you cover?
Yes. Hamstreet is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Do I need to be at home?
If the work is inside, we need someone to let us in. Once we have agreed the job, you do not need to watch us work.
Do you have sealant for grey or black windows?
Yes. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all.
Is the work guaranteed?
Yes. Each job is covered for 12 months.
Can new window sealant be painted?
Not usually, if it’s silicone. Tell us your decorating plans and we’ll pick a sealant to suit.
What affects the cost of window mastic
Your quote is based on your job. We take into account:
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- The number and length of the joints
- Which sealant suits the joint
Combining jobs into one visit generally makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear quote for the lot.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- The rough size of the job
Want a quote for window mastic? Please phone 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear quote before we start.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Landlords, agents and businesses in Hamstreet
We also work for property managers and facilities teams in Hamstreet and across Kent. Several sites can go on one quote, and we are fully insured.
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Windows and doors in Hamstreet
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.
In the older streets around Church of the Good Shepherd, the joint between an old wall and a newer frame is usually the first place rain gets in. Letting a property close to Ham Street station? Then cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like Hamstreet Primary Academy? Then the mastic around its windows and doors needs looking after like any other building’s.
Hamstreet is about 5 miles south of Ashford, in Kent. Whether you’re in the middle of Hamstreet or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Kent coverage runs to 922 places, Hamstreet among them. Our Crawley page covers work nearby (45 miles or so).
Here we cover the TN26 postcode area for window mastic. That includes homes and businesses on The Street, Dukes Meadow and Rectory Walk. We also cover Orlestone (1 mile north-west), Ruckinge (1 mile east), Kenardington (2 miles west), Bromley Green (2 miles north) and Stone Cross (2 miles north-east). Further out, we also cover Ashford (5 miles north), Folkestone (14 miles east), Hythe (10 miles east), Hawkinge (14 miles east), Tenterden (7 miles west) and Cheriton (13 miles east).
Local landmarks in Hamstreet
Typical jobs here are in homes near The Dukes Head pub. Hamstreet has its own railway station: Ham Street station. Nearby you’ll also find Brenzett Aeronautical Museum (3.9 miles south) and William Harvey Hospital (5.8 miles north-east). Not far away are Orlestone Forest.
Surface by surface
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. White is the usual colour, with brown, anthracite grey and black for coloured frames.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.
What we can’t put right
A few problems are outside what sealant work can do:
- Penetrating damp from a failed cavity tray or render
- Rotten timber, which needs a joiner first
- Condensation trapped between the panes
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before you book.
What we seal
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Composite doors
- Window sills
Towns and villages near Hamstreet
More services for Hamstreet
How the visit works
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. It normally takes a morning for a couple of windows and a door. Somewhere as small as Hamstreet, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- 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.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Preparing for the visit
- Tell us if parking is tricky
- Let us know if you’ve seen damp or leaks
- Let us know about stairs, lifts or work at height
Getting a quote
To get a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.