Kent · England

Window & door mastic in Staplehurst, Kent

Mastic around window and door frames, sills and patio doors for homes and businesses in Staplehurst and across Kent. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Gaps where the sill meets the wall
  • Black, perished sealant on frames
  • Hard, cracked sealant around windows

Window mastic in Staplehurst

Window mastic in Staplehurst, done properly

There are two joints on most windows. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. Common call-outs are for hard, cracked sealant around windows and draughts coming in around windows and doors, on window sills, composite doors and patio & French doors.

In smaller places like Staplehurst, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.

You’re covered for a year from the day we finish. If anything is not right with it, ring 0345 464 0079 or email us.

Applicator reaching up to seal an external door frame on a sunny day
Location
Staplehurst (TN12)
Region
Kent
Guarantee
A year, on every job
Quote
Quoted before any work starts
Phone
0345 464 0079
Last updated
26 October 2026

Work for landlords, hotels and businesses

If you manage several properties in or around Staplehurst, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.

We regularly work with letting and managing agents. Tell us the address, the job and how access works.

Frames and glazing around Staplehurst

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you live in an older home near All Saints Church, 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 Staplehurst School, the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Staplehurst station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.

Staplehurst is about 7 miles south of Maidstone, in Kent. Staplehurst gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Staplehurst is one of 922 towns and villages in Kent where we work. You can also see our page for Crawley, about 32 miles away.

All of TN12 is covered for window mastic. Local streets include Station Road, High Street and North Down. We also cover the places around Staplehurst: Hawkenbury (1 mile north-east), Marden Thorn (2 miles west), Cross-at-Hand (2 miles north), Wanshurst Green (2 miles north-west) and Sinkhurst Green (2 miles south-east). Within a short drive, we also cover Maidstone (7 miles north), Ashford (14 miles east), Sittingbourne (15 miles north-east), Royal Tunbridge Wells (12 miles west), Tonbridge (12 miles west) and Kings Hill (10 miles north-west).

Landmarks near Staplehurst

Around Staplehurst, our work takes us to homes and buildings near The Railway Tavern, among other places. There’s a railway station in Staplehurst itself: Staplehurst station. Nearby you’ll also find Brattle Farm Museum (1 mile south-west) and Sissinghurst Castle (3.7 miles south).

Map of Staplehurst © OpenStreetMap contributors

How it works

Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes a few hours for a handful of frames, longer for a whole house. Parking around Staplehurst is normally easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.

  1. Each frame is looked over and we agree which ones need resealing.
  2. We remove the old mastic and clean the frame edge and wall.
  3. Deep gaps get closed-cell backing rod to set the depth.
  4. A flexible exterior sealant is applied in a colour to suit the frame.
  5. We tool each bead neatly and check every joint is closed.

Getting ready for the visit

  • Plan for the work area to be out of bounds to pets and children
  • Mention any sign-in or site rules at work premises
  • Tell us if parking is tricky

Getting a quote

For window mastic in Staplehurst, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.

Ask for a quote

Read more

What happens if it’s left?

Choosing the product is half the job. Interior caulk and bathroom silicone are not made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. In an older home around Staplehurst, damp from a failed joint can get into timber and plaster, and that’s a much bigger job than renewing the sealant.

Doing several joints on one visit is normally more efficient than separate visits. You’ll get one clear quote for the whole job.

Why book with us

  • Anti-fungal sanitary silicone in wet areas
  • Quality sealants from Arbo and Everbuild
  • We never seal over old sealant
  • ARBOMaster approved applicator

Take a look at what affects the cost and our reviews.

Can I do it myself?

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

Staplehurst: your questions answered

Do you work for landlords with property near Staplehurst station?

Yes, we work for letting agents and landlords. Just call 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.

Do you cover Staplehurst for window mastic?

Yes, Staplehurst is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and tell us what needs doing.

Will you leave a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

Do you hold any approvals?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.

Do the sealants smell?

There can be a smell while the sealant cures, which fades as it sets. Opening a window helps.

What information do you need?

Tell us what needs doing and where, plus pictures if you have them. If we need more, we will ask.

Can I paint over the new sealant?

Not if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.

Do you seal inside as well as outside?

Yes. Outside is the weather seal; inside closes the gap to the plaster. We do one or both.

How we quote for window mastic

Your quote is based on your job. We take into account:

  • How much there is to do
  • How many rooms, windows or areas are involved
  • The product the joint needs
  • Access and height

What you pay reflects the work, not guesswork. That’s why we ask a few questions first.

Helping us quote

To make quoting easier, let us know:

  • If someone has resealed it before
  • Where the property is
  • What’s wrong with the joints now
  • Access, such as stairs, a lift or height

Every job is quoted individually. Just call 0345 464 0079 or email us with the details.

Surface by surface

Window sills

The end joints of a sill tend to fail before the rest. A tight seal at each end keeps rain out of the wall.

Timber windows & doors

Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.

Looking after it afterwards

Once the sealant has cured, a few habits help it last:

  • Clear any debris from frame drain holes
  • Air rooms to keep condensation down around windows
  • Do not use solvent cleaners on the joint
  • Wash the frames with mild soapy water

Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.

Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job