Kent · England

Window & door mastic in Heart's Delight, Kent

Mastic around window and door frames, sills and patio doors in Heart's Delight, with a 12-month guarantee on every job. Call for a quick quote.

  • Leaking joints at the ends of sills
  • Water coming in at the bottom corners of a door
  • Mastic that is falling out in pieces

Window mastic in Heart's Delight

How it works

At the end, we look at the finished work together and explain the cure time. The work normally takes a morning for a couple of windows and a door, depending on the amount of work. For a village or hamlet like Heart's Delight, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We check how each frame can be reached safely.
  2. All the failed sealant is cut away.
  3. Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. The joint is shaped to shed water and the area tidied.

How to prepare

  • Mention any leaks or damp you’ve noticed
  • Let us know about stairs, lifts or work at height
  • Keep pets and children clear of the area while we work

Getting a quote

Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or send us an email.

Get a quick quote

Related advice

How we handle window mastic in Heart's Delight

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. Where the air is getting in through the window itself, we will say so. Typical jobs include leaking joints at the ends of sills and white mastic on grey or black frames, across uPVC windows, composite doors and timber windows & doors.

Homes in small places like Heart's Delight often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.

All of our work is guaranteed for twelve months, in Heart's Delight and everywhere else we cover.

Where
Heart's Delight (CT4)
Region
Kent
Guarantee
12 months on all our work
Quote
A clear price before work begins
Call
0345 464 0079
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Keeping the joints in good condition

How long the joints last depends on use and care. We suggest:

  • Avoid harsh chemicals near the mastic
  • Check the mastic once a year
  • Clear any debris from frame drain holes
  • Don’t paint over the silicone

Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.

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.

Common problems we fix in Heart's Delight

Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, and a gap filled solid cannot flex. Backing rod sets the right depth.

Common reasons people contact us are:

  • A bead that doesn’t match the frame
  • Rain getting in at the frame or under the sill
  • Hard, cracked sealant around windows
  • Cracked internal joints between frame and plaster

In the older streets around Church of St John the Baptist, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

What to look for in a quote

  • What the cure time is
  • What happens if the job turns out different
  • What guarantee comes with the work
  • How the joint is cleaned and prepared

Our hiring checklist

Quotes for window mastic in Heart's Delight

We quote each job individually. This is what makes a difference:

  • The size of the job
  • Whether the work is at height
  • Working hours on commercial sites
  • Whether there’s mould to deal with

The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.

Asking for a quote

Photos by email are helpful but not essential. Please mention:

  • If someone has resealed it before
  • What the problem is, such as mould, gaps, leaks or cracking
  • The type of property
  • A few pictures by email, if you can

Every job is quoted individually, so start by telling us what you need. Just call 0345 464 0079 or email us with the details.

Work for landlords, hotels and businesses

In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.

We also work for property managers and facilities teams in Heart's Delight and across Kent. We can quote a run of properties together, and we’re fully insured for the work.

FAQs for Heart's Delight

Is Heart's Delight within the area you cover?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

I let a flat near Snowdown station. Can you help?

Yes. We work for landlords and letting agents as well as homeowners. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.

Is it OK to seal over old sealant?

No. The old sealant always comes out first.

Is it messy?

Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.

Is the new sealant paintable?

That depends on the product. Some hybrid sealants can be painted; silicone cannot. Tell us if you are decorating and we will choose accordingly.

Do the sealants smell?

Sometimes, a little. It fades as the sealant cures.

Can you get sealant to suit coloured frames?

Yes. White, brown, anthracite grey, black and clear sealants are all available.

What do you put in the joint?

Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.

What we cannot put right

It helps to know what we can’t do too:

  • A door that needs adjusting, rehanging or new seals
  • Soft or decayed wood in the frame
  • A sash or casement that will not close properly

If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer.

Joints and surfaces we work on

  • Aluminium frames
  • Timber windows & doors
  • uPVC windows
  • Composite doors
  • Window sills
  • Patio & French doors

Surface by surface

Window sills

Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.

Patio & French doors

Water at the foot of a door frame is not always the mastic: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.

Heart's Delight homes and the weather

Historic houses like Acrise Place (about 4.4 miles south) are a reminder that the area around Heart's Delight has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For landlords with property near Snowdown station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Schools such as Barham Church of England Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.

Heart's Delight is about 6 miles north of Hawkinge, in Kent. Jobs in Heart's Delight get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. 922 places in Kent are on our list, large and small. Chelmsford is on our list too, about 47 miles from Heart's Delight.

Work in CT4 is quoted and booked the same way as anywhere else. Whether your property is on South Barham Road, Green Hills and Railway Hill or anywhere close by, our applicators can take on the job. We also cover the places around Heart's Delight: Derringstone (1 mile north-east), Barham (1 mile north-east), Gravel Castle (1 mile east), Marley (1 mile north-west) and Out Elmstead (1 mile north). Further out, we also cover Ashford (13 miles west), Canterbury (6 miles north-west), Dover (8 miles south-east), Folkestone (8 miles south), Ramsgate (15 miles north-east) and Whitstable (12 miles north-west).

Local landmarks in Heart's Delight

We work in homes and buildings around Jumping Downs, among other places. The closest station to Heart's Delight is Snowdown station, roughly 2.9 miles east of the centre. Nearby you’ll also find Kent and Canterbury Hospital (5.3 miles north-west).

Map of Heart's Delight © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job