Kent · England
Shepway Window Mastic
Window and door frames in Shepway need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Draughty joints inside around the window
- Mastic that has split away from the wall
- Gaps left after new windows were fitted
What sealant work cannot fix
It helps to know what we can’t do too:
- Worn gaskets, brush seals or a door that has dropped
- A sash or casement that will not close properly
- Damp problems in the wall away from the window
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Where we work in Shepway
- Window sills
- uPVC windows
- Aluminium frames
- Composite doors
- Patio & French doors
- Timber windows & doors
About our window mastic in Shepway
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a one-year guarantee on the work. We work on timber windows & doors, window sills and aluminium frames, and people most often call us about mastic that has split away from the wall and gaps between the frame and the inside reveal.
Homes around Shepway range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Shepway (ME15)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What we are called out for in Shepway
Joints that are too thin or too deep fail early. A skim of sealant over a wide gap soon tears, while a joint packed solid can’t stretch. Backing rod sets the right depth.
Look out for these signs:
- Gaps between the frame and the inside reveal
- White mastic on grey or black frames
- Hard, cracked sealant around windows
- Black, perished sealant on frames
If you live in an older home near St Martin's Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Whether VAT is included
- Who turns up on the day
- What preparation is included
- Are they insured?
How the visit works
Most of a good job is in the preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a morning for a couple of windows and a door. For a job in Shepway, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
- Mention any leaks or damp you’ve noticed
Get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.
Related advice
What affects the quote in Shepway
Call for a quick quote. What matters most is:
- Working hours on commercial sites
- Whether there’s mould to deal with
- The number of rooms or windows
- Whether the work is at height
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Photos by email, if that’s easy
- Whether it has been sealed before
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
We quote each job on its own, so start by telling us what you need. Simply call 0345 464 0079 or email us and describe the job.
Questions from Shepway
Can you help a landlord with a rental near Maidstone West station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Is Shepway in your area for window mastic?
Yes. Our work covers London and the South East, and Shepway is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Can new window sealant be painted?
Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
Can I add another job to the visit?
Yes. Just list everything you need and you will get one quote.
Can you reach windows above the ground floor?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote and we will plan for it.
How long should I leave it?
Cure times vary by product and the conditions. We tell you how long to leave it before we go.
Leave it or put it right?
Choosing the product is half the job. Decorators’ caulk and bathroom silicone are not designed for outside joints that move. An exterior, low-modulus sealant stays flexible in sun and frost. Homes in smaller places like Shepway can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why us?
- Experience in homes, commercial sites and hotels
- Anti-fungal sanitary silicone in wet areas
- Colour agreed with you before work begins
- Arbo and Everbuild products
Take a look at our cost guide and what customers say.
Towns and villages near Shepway
More services for Shepway
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Looking after it afterwards
After the cure time, these simple habits help:
- Make sure the drainage slots aren’t blocked
- Wash the frames with mild soapy water
- Check the mastic once a year
- Keep paint and stain on wooden frames in good order
Silicone cannot usually be painted, so if you’re planning to paint the frames or walls, tell us beforehand. We can use a paintable sealant where that matters.
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.
Frames and glazing around Shepway
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. Historic houses like Stoneacre (about 1.4 miles east) are a reminder that the area around Shepway has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Managing a site like Greenfields Community Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Maidstone West station, renewing tired window mastic between tenants heads off draught and damp complaints.
Shepway is about 1 mile south-east of Maidstone, in Kent. Whether you are in the middle of Shepway or further out, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 922 places in Kent are on our list, large and small. London is on our list too, about 32 miles from Shepway.
Jobs for window mastic in ME15 is quoted and booked the same way as anywhere else. Window mastic is available to properties on Derby Road, Devon Road and Surrey Road and the roads around them. Neighbouring places we cover for window mastic include Willington (1 mile east), Park Wood (1 mile south), Otham (1 mile south-east), Maidstone (1 mile north-west) and Weavering (1 mile north-east). We also work in nearby towns such as Sittingbourne (10 miles north-east), Royal Tunbridge Wells (15 miles south-west), Gravesend (14 miles north-west), Tonbridge (12 miles west), Faversham (15 miles east) and Northfleet (15 miles north-west).
Local landmarks in Shepway
We work in homes and buildings around Mote Park, The Wheatsheaf pub and Senacre Technology College, among other places. For rail, the closest station is Maidstone West station, about 1.7 miles north-west of the centre. Nearby you will also find KIMS hospital (2.2 miles north) and Allington Castle (3.1 miles north-west). Green spaces nearby include Detling Hill.