Kent · England
Murston Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Murston and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.
- Old mastic that has gone black or come away
- Cracked sealant at the sill ends
- Gaps between the frame and the inside reveal
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Walk round the house once a year and look at the joints
- Avoid blasting the frames with a pressure washer
- Make sure the drainage slots are not blocked
- Clean frames with a soft cloth and soapy water
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and heat escapes around the frame. Resealing closes it.
About our window mastic in Murston
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we’ll tell you. We work on composite doors, window sills and timber windows & doors, and the jobs we see most are whistling draughts around closed windows and leaking joints at the ends of sills.
Many houses in smaller places like Murston have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
There’s a 12-month guarantee on every job, large or small.
- Place
- Murston (ME10, ME9)
- Wider area
- Kent
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for window mastic
The quote reflects the job in front of us. We take into account:
- How many areas need sealing
- Whether there’s mould to deal with
- Working hours on commercial sites
- How much old sealant there is and how hard it is to remove
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email.
Helping us quote
When you call or email, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
- A few photos by email, if you can
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work and give you a clear price.
Places near Murston
Other services in Murston
Landlords, agents and businesses in Murston
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
When to call us in Murston
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar never bonded as it should, and it lets go sooner than it should.
Signs it’s time to call us include:
- Cold air getting in at the frame edge
- White mastic on grey or black frames
- Mastic that’s falling out in pieces
- Gaps between the frame and the inside reveal
In the older streets around Church of All Saints, the joint between an old wall and a newer frame is usually the first place rain gets in.
What your quote should include
- How the surfaces are prepared before sealing
- What the quote includes, VAT included or not
- What guarantee comes with the work
- What product goes in the joint
Questions from Murston
Is window mastic in a coastal place like Murston any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.
Do you work for landlords with property near Sittingbourne station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Can you do the inside joint as well?
Yes. Inside, the joint between frame and plaster is sealed neatly.
Do you have insurance?
Yes. We are fully insured.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we’ll agree access with you when we book.
How many windows can you do in a day?
A handful of frames is a short visit. You’ll get a timescale with the quote.
Does the work come with a guarantee?
Yes. Our one-year guarantee covers every job, inside or out.
How much does window mastic cost in Murston?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or email us and let us know what needs doing and where.
Windows and doors in Murston
Murston is within about 2 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Sunny Bank Primary School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Sittingbourne station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Murston is about 1 mile east of Sittingbourne, in Kent. Whether you’re in the middle of Murston or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our area takes in 922 places across Kent. We also work in Chelmsford, around 30 miles away.
Every address in ME10 and ME9 is covered for window mastic. If you need window mastic at a property on Oak Road, Glebe Lane and Leigh Road or a nearby road, we can help. We also cover the places around Murston: Milton Regis (1 mile north), Sittingbourne (1 mile west), Tonge Corner (1 mile east), Rodmersham (1 mile south) and Kemsley (1 mile north). Within a short drive, we also cover Maidstone (11 miles south-west), Ashford (15 miles south), Canterbury (15 miles east), Whitstable (12 miles east), Faversham (6 miles east) and Minster (6 miles north).
Local landmarks in Murston
Typical jobs here are in homes near Sittingbourne Community College, Milton Creek Country Park and The New Inn and the streets around them. The closest station to Murston is Sittingbourne station, roughly 0.7 miles west of the centre. Well-known places in the area include Sittingbourne Heritage Museum (within half a mile west) and Bayford Court (under half a mile west).
What sealant work cannot fix
We’ll always be straight with you, so here’s what new sealant will not do:
- Soft or decayed wood in the frame
- Draughts through the window seals rather than the frame
- Broken hinges, locks or handles
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Where we work in Murston
- uPVC windows
- Window sills
- Composite doors
- Timber windows & doors
- Patio & French doors
- Aluminium frames
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
How the visit works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes most of a day for a typical house, less for a few frames, depending on the amount of work. A visit to Murston 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.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Mention any leaks or damp you’ve noticed
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
Ask for a quote
Want a quote for window mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before work begins.