Kent · England
Window Mastic in Well Street
Specialist window mastic for Well Street: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Black, perished sealant on frames
- Cold air getting in at the frame edge
- Untidy mastic left by window fitters
Window mastic for homes and businesses in Well Street
Most frames have an outside joint and an inside one. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. Common call-outs are for a bead that doesn’t match the frame and mastic that has split away from the wall, across aluminium frames, patio & French doors and window sills.
Somewhere as small as Well Street, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.
- Where
- Well Street (ME19)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Why it’s worth doing now in Well Street
Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. In a small place like Well Street, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
Why choose Mr Mastic in Well Street
- More than 20 years in sealant work
- An ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
- Trusted Arbo and Everbuild sealants
Take a look at how sealant jobs are priced and our reviews.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
Your questions about window mastic in Well Street
I let a flat near East Malling station. Can you help?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Is Well Street within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you fully insured?
Yes. Full insurance covers our work.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Is it OK to seal over old sealant?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
What should I tell you?
Tell us what needs doing and where. We’ll ask anything else we need to know.
Can I do it myself?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
Nearby places to Well Street
Also in Well Street
What affects the cost of window mastic
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- How easy the joints are to reach
- The product the joint needs
- How much there is to do
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.
Asking for a quote
There’s no need for technical detail. Just tell us:
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- Photos by email, if that is easy
- What the problem is, such as mould, gaps, leaks or cracking
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before we start.
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Keeping the joints in good condition
Simple care keeps the joints in good condition. Our advice:
- Don’t aim a pressure washer at the joints
- Look round the frames every year or so
- Paint up to the joint, not over it
- Keep solvents and bleach off the sealant
Silicone cannot usually be painted, so if you’re planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
What we can’t put right
New sealant can’t fix everything, and we’ll tell you before any work starts. It will not solve:
- A frame that has rotted at the joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Draughts through the window seals rather than the frame
If you are not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
What we seal
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
- Timber windows & doors
- uPVC windows
What happens on the day
Most of a good job is in the preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a handful of frames, longer for a whole house. In a small place like Well Street, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
How to prepare
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
Getting a quote
If you’re in Well Street and need window mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Advice
Windows and doors in Well Street
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. With historic houses such as Old Soar Manor (about 4.9 miles west) nearby, there’s older building stock in the area around Well Street as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
If you live in an older home near Church of St James, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as The Malling School, larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near East Malling station, renewing tired window mastic between tenants heads off draught and damp complaints.
Well Street is about 4 miles west of Maidstone, in Kent. Wherever you are in the ME19 postcode area, we can carry out window mastic at your property. Well Street is one of 922 places in Kent we cover for window mastic. Our London page covers work nearby, about 27 miles away.
Every address in ME19 is within our area for window mastic. Nearby, we also carry out window mastic in East Malling (1 mile north), West Malling (1 mile north-west), Kings Hill (1 mile south-west), Ditton (1 mile north-east) and Red Hill (2 miles south). Further out, we also cover Maidstone (4 miles east), Sittingbourne (14 miles east), Dartford (14 miles north-west), Sevenoaks (10 miles west), Royal Tunbridge Wells (12 miles south-west) and Gravesend (10 miles north).
Local landmarks in Well Street
Around Well Street, our work takes us to homes and buildings near St James the Great Academy, The Rising Sun pub and Manor Park Country Park. For rail, the closest station is East Malling station, about 0.5 miles east of the centre. Nearby you’ll also find Coldrum Long Barrow (3.5 miles north-west) and Leybourne Castle (1.4 miles north). Green spaces nearby include Blue Bell Hill and Burham Down.